Bump tcell

* Add reload setting

Can be set to:

* auto - Automatically reload files that changed
* disabled - Do not reload files
* prompt - Prompt the user about reloading the file.

* option: Add default value for reload option and documentation

---------

Co-authored-by: Wilberto Morales <wilbertomorales777@gmail.com>

.github/ISSUE_TEMPLATE

@@ -2,7 +2,7 @@
 
 ## Specifications
 
-You can use `micro -version` to get the commit hash.
+<!-- You can use `micro -version` to get the commit hash. -->
 
 Commit hash:
 OS:

.github/workflows/test.yaml

@@ -0,0 +1,22 @@
+on: [push, pull_request]
+name: Build and Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.19.x]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/setup-go@v3
+      with:
+        go-version: ${{ matrix.go-version }}
+    - uses: actions/checkout@v3
+
+    - name: Build
+      run: |
+        make build
+
+    - name: Test
+      run: |
+        make test

.gitignore

@@ -7,3 +7,13 @@ tmp.sh
 test/
 .idea/
 packages/
+todo.txt
+test.txt
+log.txt
+*.old
+benchmark_results*
+tools/build-version
+tools/build-date
+tools/info-plist
+tools/vscode-tests/
+*.hdr

.gitmodules

@@ -1,72 +0,0 @@
-[submodule "cmd/micro/vendor/github.com/blang/semver"]
-	path = cmd/micro/vendor/github.com/blang/semver
-	url = https://github.com/blang/semver
-[submodule "cmd/micro/vendor/github.com/dustin/go-humanize"]
-	path = cmd/micro/vendor/github.com/dustin/go-humanize
-	url = https://github.com/dustin/go-humanize
-[submodule "cmd/micro/vendor/github.com/go-errors/errors"]
-	path = cmd/micro/vendor/github.com/go-errors/errors
-	url = https://github.com/go-errors/errors
-[submodule "cmd/micro/vendor/github.com/mattn/go-isatty"]
-	path = cmd/micro/vendor/github.com/mattn/go-isatty
-	url = https://github.com/mattn/go-isatty
-[submodule "cmd/micro/vendor/github.com/mattn/go-runewidth"]
-	path = cmd/micro/vendor/github.com/mattn/go-runewidth
-	url = https://github.com/mattn/go-runewidth
-[submodule "cmd/micro/vendor/github.com/mitchellh/go-homedir"]
-	path = cmd/micro/vendor/github.com/mitchellh/go-homedir
-	url = https://github.com/mitchellh/go-homedir
-[submodule "cmd/micro/vendor/github.com/sergi/go-diff"]
-	path = cmd/micro/vendor/github.com/sergi/go-diff
-	url = https://github.com/sergi/go-diff
-[submodule "cmd/micro/vendor/github.com/yuin/gopher-lua"]
-	path = cmd/micro/vendor/github.com/yuin/gopher-lua
-	url = https://github.com/yuin/gopher-lua
-[submodule "cmd/micro/vendor/golang.org/x/net"]
-	path = cmd/micro/vendor/golang.org/x/net
-	url = https://go.googlesource.com/net
-[submodule "cmd/micro/vendor/github.com/zyedidia/clipboard"]
-	path = cmd/micro/vendor/github.com/zyedidia/clipboard
-	url = https://github.com/zyedidia/clipboard
-[submodule "cmd/micro/vendor/github.com/zyedidia/glob"]
-	path = cmd/micro/vendor/github.com/zyedidia/glob
-	url = https://github.com/zyedidia/glob
-[submodule "cmd/micro/vendor/github.com/zyedidia/tcell"]
-	path = cmd/micro/vendor/github.com/zyedidia/tcell
-	url = https://github.com/zyedidia/tcell
-[submodule "cmd/micro/vendor/github.com/gdamore/encoding"]
-	path = cmd/micro/vendor/github.com/gdamore/encoding
-	url = https://github.com/gdamore/encoding
-[submodule "cmd/micro/vendor/golang.org/x/text"]
-	path = cmd/micro/vendor/golang.org/x/text
-	url = https://go.googlesource.com/text
-[submodule "cmd/micro/vendor/github.com/lucasb-eyer/go-colorful"]
-	path = cmd/micro/vendor/github.com/lucasb-eyer/go-colorful
-	url = https://github.com/lucasb-eyer/go-colorful
-[submodule "cmd/micro/vendor/layeh.com/gopher-luar"]
-	path = cmd/micro/vendor/layeh.com/gopher-luar
-	url = https://github.com/layeh/gopher-luar
-[submodule "cmd/micro/vendor/gopkg.in/yaml.v2"]
-	path = cmd/micro/vendor/gopkg.in/yaml.v2
-	url = https://gopkg.in/yaml.v2
-[submodule "cmd/micro/vendor/github.com/zyedidia/poller"]
-	path = cmd/micro/vendor/github.com/zyedidia/poller
-	url = https://github.com/zyedidia/poller
-[submodule "cmd/micro/vendor/github.com/flynn/json5"]
-	path = cmd/micro/vendor/github.com/flynn/json5
-	url = https://github.com/flynn/json5
-[submodule "cmd/micro/vendor/github.com/zyedidia/terminal"]
-	path = cmd/micro/vendor/github.com/zyedidia/terminal
-	url = https://github.com/zyedidia/terminal
-[submodule "cmd/micro/vendor/github.com/zyedidia/pty"]
-	path = cmd/micro/vendor/github.com/zyedidia/pty
-	url = https://github.com/zyedidia/pty
-[submodule "cmd/micro/vendor/github.com/smartystreets/goconvey"]
-	path = cmd/micro/vendor/github.com/smartystreets/goconvey
-	url = https://github.com/smartystreets/goconvey
-[submodule "cmd/micro/vendor/github.com/jtolds/gls"]
-	path = cmd/micro/vendor/github.com/jtolds/gls
-	url = https://github.com/jtolds/gls
-[submodule "cmd/micro/vendor/github.com/smartystreets/assertions"]
-	path = cmd/micro/vendor/github.com/smartystreets/assertions
-	url = https://github.com/smartystreets/assertions

.travis.yml

@@ -1,2 +0,0 @@
-language: go
-script: make test

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2016-2017: Zachary Yedidia, et al.
+Copyright (c) 2016-2020: Zachary Yedidia, et al.
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

LICENSE-THIRD-PARTY

@@ -1,4 +1,4 @@
-Third party libraries
+Third party libraries directly used by micro and their licenses
 ================
 
 github.com/golang/go/LICENSE
@@ -637,37 +637,6 @@ github.com/zyedidia/tcell/LICENSE (fork)
    limitations under the License.
 
 
-golang.org/x/net/LICENSE
-================
-
-Copyright (c) 2009 The Go Authors. All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are
-met:
-
-   * Redistributions of source code must retain the above copyright
-notice, this list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above
-copyright notice, this list of conditions and the following disclaimer
-in the documentation and/or other materials provided with the
-distribution.
-   * Neither the name of Google Inc. nor the names of its
-contributors may be used to endorse or promote products derived from
-this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 golang.org/x/text/LICENSE
 ================
 
@@ -1079,6 +1048,8 @@ Exhibit B - "Incompatible With Secondary Licenses" Notice
 
 github.com/flynn/json5/LICENSE
 ================
+github.com/zyedidia/json5/LICENSE (fork)
+================
 
 Decoder code based on package encoding/json from the Go language.
 
@@ -1189,82 +1160,6 @@ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-github.com/smartystreets/goconvey/LICENSE.md
-================
-
-Copyright (c) 2016 SmartyStreets, LLC
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-NOTE: Various optional and subordinate components carry their own licensing
-requirements and restrictions.  Use of those components is subject to the terms
-and conditions outlined the respective license of each component.
-
-github.com/smartystreets/assertions/LICENSE.md
-================
-
-Copyright (c) 2016 SmartyStreets, LLC
-
-Permission is hereby granted, free of charge, to any person obtaining a copy 
-of this software and associated documentation files (the "Software"), to deal 
-in the Software without restriction, including without limitation the rights 
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
-copies of the Software, and to permit persons to whom the Software is 
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all 
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
-SOFTWARE.
-
-NOTE: Various optional and subordinate components carry their own licensing
-requirements and restrictions.  Use of those components is subject to the terms
-and conditions outlined the respective license of each component.
-
-github.com/jtolds/gls/LICENSE
-================
-
-Copyright (c) 2013, Space Monkey, Inc.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
 github.com/npat-efault/poller/LICENSE.txt
 ================
 github.com/zyedidia/poller/LICENSE.txt (fork)
@@ -1362,10 +1257,35 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 
-github.com/lucasb-eyer/go-colorful/LICENSE
-================
+github.com/kballard/go-shellquote/LICENSE
+===============
 
-Copyright (c) 2013 Lucas Beyer
+Copyright (C) 2014 Kevin Ballard
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+github.com/stretchr/testify
+=================
+
+MIT License
+
+Copyright (c) 2012-2018 Mat Ryer and Tyler Bunnell
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -1374,8 +1294,8 @@ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

Makefile

@@ -1,50 +1,71 @@
-.PHONY: runtime
+.PHONY: runtime build generate build-quick
 
-VERSION := $(shell GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) \
+VERSION = $(shell GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) \
 	go run tools/build-version.go)
-HASH := $(shell git rev-parse --short HEAD)
-DATE := $(shell GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) \
+HASH = $(shell git rev-parse --short HEAD)
+DATE = $(shell GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) \
 	go run tools/build-date.go)
-ADDITIONAL_GO_LINKER_FLAGS := $(shell GOOS=$(shell go env GOHOSTOS) \
+ADDITIONAL_GO_LINKER_FLAGS = $(shell GOOS=$(shell go env GOHOSTOS) \
 	GOARCH=$(shell go env GOHOSTARCH) \
-	go run tools/info-plist.go "$(VERSION)")
+	go run tools/info-plist.go "$(shell go env GOOS)" "$(VERSION)")
 GOBIN ?= $(shell go env GOPATH)/bin
+GOVARS = -X github.com/zyedidia/micro/v2/internal/util.Version=$(VERSION) -X github.com/zyedidia/micro/v2/internal/util.CommitHash=$(HASH) -X 'github.com/zyedidia/micro/v2/internal/util.CompileDate=$(DATE)'
+DEBUGVAR = -X github.com/zyedidia/micro/v2/internal/util.Debug=ON
+VSCODE_TESTS_BASE_URL = 'https://raw.githubusercontent.com/microsoft/vscode/e6a45f4242ebddb7aa9a229f85555e8a3bd987e2/src/vs/editor/test/common/model/'
 
-# Builds micro after checking dependencies but without updating the runtime
-build: update
-	go build -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)' $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
+build: generate build-quick
 
-# Builds micro after building the runtime and checking dependencies
-build-all: runtime build
-
-# Builds micro without checking for dependencies
 build-quick:
-	go build -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)' $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
+	go build -trimpath -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
-# Same as 'build' but installs to $GOBIN afterward
-install: update
-	go install -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)' $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
+build-dbg:
+	go build -trimpath -ldflags "-s -w $(ADDITIONAL_GO_LINKER_FLAGS) $(DEBUGVAR)" ./cmd/micro
 
-# Same as 'build-all' but installs to $GOBIN afterward
-install-all: runtime install
+build-tags: fetch-tags generate
+	go build -trimpath -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
-# Same as 'build-quick' but installs to $GOBIN afterward
-install-quick:
-	go install -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)' $(ADDITIONAL_GO_LINKER_FLAGS)"  ./cmd/micro
+build-all: build
 
-update:
-	git pull
-	git submodule update --init
+install: generate
+	go install -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
-# Builds the runtime
-runtime:
-	go get -u github.com/jteeuwen/go-bindata/...
-	$(GOBIN)/go-bindata -nometadata -o runtime.go runtime/...
-	mv runtime.go cmd/micro
-	gofmt -w cmd/micro/runtime.go
+install-all: install
+
+fetch-tags:
+	git fetch --tags
+
+generate:
+	GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) go generate ./runtime
+
+testgen:
+	mkdir -p tools/vscode-tests
+	cd tools/vscode-tests && \
+	curl --remote-name-all $(VSCODE_TESTS_BASE_URL){editableTextModelAuto,editableTextModel,model.line}.test.ts
+	tsc tools/vscode-tests/*.ts > /dev/null; true
+	go run tools/testgen.go tools/vscode-tests/*.js > buffer_generated_test.go
+	mv buffer_generated_test.go internal/buffer
+	gofmt -w internal/buffer/buffer_generated_test.go
 
 test:
-	go test ./cmd/micro
+	go test ./internal/...
+	go test ./cmd/...
+
+bench:
+	for i in 1 2 3; do \
+		go test -bench=. ./internal/...; \
+	done > benchmark_results
+	benchstat benchmark_results
+
+bench-baseline:
+	for i in 1 2 3; do \
+		go test -bench=. ./internal/...; \
+	done > benchmark_results_baseline
+
+bench-compare:
+	for i in 1 2 3; do \
+		go test -bench=. ./internal/...; \
+	done > benchmark_results
+	benchstat -alpha 0.15 benchmark_results_baseline benchmark_results
 
 clean:
 	rm -f micro

README.md

@@ -1,102 +1,118 @@
-# ![Micro](./assets/logo.png)
+<img alt="micro logo" src="./assets/micro-logo-drop.svg" width="500px"/>
 
-[![Build Status](https://travis-ci.org/zyedidia/micro.svg?branch=master)](https://travis-ci.org/zyedidia/micro)
+![Test Workflow](https://github.com/zyedidia/micro/actions/workflows/test.yaml/badge.svg)
 [![Go Report Card](https://goreportcard.com/badge/github.com/zyedidia/micro)](https://goreportcard.com/report/github.com/zyedidia/micro)
-[![Join the chat at https://gitter.im/zyedidia/micro](https://badges.gitter.im/zyedidia/micro.svg)](https://gitter.im/zyedidia/micro?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Release](https://img.shields.io/github/release/zyedidia/micro.svg?label=Release)](https://github.com/zyedidia/micro/releases)
 [![MIT License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/zyedidia/micro/blob/master/LICENSE)
-[![Snap Status](https://build.snapcraft.io/badge/zyedidia/micro.svg)](https://build.snapcraft.io/user/zyedidia/micro)
+[![Join the chat at https://gitter.im/zyedidia/micro](https://badges.gitter.im/zyedidia/micro.svg)](https://gitter.im/zyedidia/micro?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Snap Status](https://snapcraft.io/micro/badge.svg)](https://snapcraft.io/micro)
 
-Micro is a terminal-based text editor that aims to be easy to use and intuitive, while also taking advantage of the full capabilities
-of modern terminals. It comes as one single, batteries-included, static binary with no dependencies, and you can download and use it right now.
+**micro** is a terminal-based text editor that aims to be easy to use and intuitive, while also taking advantage of the capabilities
+of modern terminals. It comes as a single, batteries-included, static binary with no dependencies; you can download and use it right now!
 
-As the name indicates, micro aims to be somewhat of a successor to the nano editor by being easy to install and use in a pinch, but micro also aims to be
-enjoyable to use full time, whether you work in the terminal because you prefer it (like me), or because you need to (over ssh).
+As its name indicates, micro aims to be somewhat of a successor to the nano editor by being easy to install and use.
+It strives to be enjoyable as a full-time editor for people who prefer to work in a terminal, or those who regularly edit files over SSH.
 
 Here is a picture of micro editing its source code.
 
 ![Screenshot](./assets/micro-solarized.png)
 
-To see more screenshots of micro, showcasing all of the default colorschemes, see [here](http://zbyedidia.webfactional.com/micro/screenshots.html).
-
+To see more screenshots of micro, showcasing some of the default color schemes, see [here](https://micro-editor.github.io).
+ 
 You can also check out the website for Micro at https://micro-editor.github.io.
 
-# Table of Contents
+## Table of Contents
+
 - [Features](#features)
 - [Installation](#installation)
-  - [Prebuilt binaries](#prebuilt-binaries)
+  - [Prebuilt binaries](#pre-built-binaries)
   - [Package Managers](#package-managers)
   - [Building from source](#building-from-source)
-  - [MacOS terminal](#macos-terminal)
+  - [Fully static binary](#fully-static-binary)
+  - [macOS terminal](#macos-terminal)
   - [Linux clipboard support](#linux-clipboard-support)
   - [Colors and syntax highlighting](#colors-and-syntax-highlighting)
-  - [Plan9, Cygwin](#plan9-cygwin)
+  - [Cygwin, Mingw, Plan9](#cygwin-mingw-plan9)
 - [Usage](#usage)
 - [Documentation and Help](#documentation-and-help)
 - [Contributing](#contributing)
 
 - - -
 
-# Features
+## Features
 
-* Easy to use and to install
-* No dependencies or external files are needed -- just the binary you can download further down the page
-* Multiple cursors
-* Common keybindings (ctrl-s, ctrl-c, ctrl-v, ctrl-z...)
-    * Keybindings can be rebound to your liking
-* Sane defaults
-    * You shouldn't have to configure much out of the box (and it is extremely easy to configure)
-* Splits and tabs
-* Nano-like menu to help you remember the keybindings
-* Extremely good mouse support
-    * This means mouse dragging to create a selection, double click to select by word, and triple click to select by line
-* Cross platform (It should work on all the platforms Go runs on)
-    * Note that while Windows is supported, there are still some bugs that need to be worked out
-* Plugin system (plugins are written in Lua)
-    * Micro has a built-in plugin manager to automatically install, remove, and update all your plugins
-* Persistent undo
-* Automatic linting and error notifications
-* Syntax highlighting (for over [90 languages](runtime/syntax)!)
-* Colorscheme support
-    * By default, micro comes with 16, 256, and true color themes.
-* True color support (set the `MICRO_TRUECOLOR` env variable to 1 to enable it)
-* Snippets
-    * The snippet plugin can be installed with `> plugin install snippets`
-* Copy and paste with the system clipboard
-* Small and simple
-* Easily configurable
-* Macros
-* Common editor things such as undo/redo, line numbers, Unicode support, softwrap...
+- Easy to use and install.
+- No dependencies or external files are needed — just the binary you can download further down the page.
+- Multiple cursors.
+- Common keybindings (<kbd>Ctrl-s</kbd>, <kbd>Ctrl-c</kbd>, <kbd>Ctrl-v</kbd>, <kbd>Ctrl-z</kbd>, …).
+  - Keybindings can be rebound to your liking.
+- Sane defaults.
+  - You shouldn't have to configure much out of the box (and it is extremely easy to configure).
+- Splits and tabs.
+- nano-like menu to help you remember the keybindings.
+- Extremely good mouse support.
+  - This means mouse dragging to create a selection, double click to select by word, and triple click to select by line.
+- Cross-platform (it should work on all the platforms Go runs on).
+  - Note that while Windows is supported, Mingw/Cygwin is not (see below).
+- Plugin system (plugins are written in Lua).
+  - micro has a built-in plugin manager to automatically install, remove, and update plugins.
+- Built-in diff gutter.
+- Simple autocompletion.
+- Persistent undo.
+- Automatic linting and error notifications.
+- Syntax highlighting for over [130 languages](runtime/syntax).
+- Color scheme support.
+  - By default, micro comes with 16, 256, and true color themes.
+- True color support (set the `MICRO_TRUECOLOR` environment variable to 1 to enable it).
+- Copy and paste with the system clipboard.
+- Small and simple.
+- Easily configurable.
+- Macros.
+- Common editor features such as undo/redo, line numbers, Unicode support, soft wrapping, …
 
-Although not yet implemented, I hope to add more features such as autocompletion ([#174](https://github.com/zyedidia/micro/issues/174)) or a tree view ([#249](https://github.com/zyedidia/micro/issues/249)) in the future.
-
-# Installation
+## Installation
 
 To install micro, you can download a [prebuilt binary](https://github.com/zyedidia/micro/releases), or you can build it from source.
 
 If you want more information about ways to install micro, see this [wiki page](https://github.com/zyedidia/micro/wiki/Installing-Micro).
 
-### Prebuilt binaries
+Use `micro -version` to get the version information after installing. It is only guaranteed that you are installing the most recent
+stable version if you install from the prebuilt binaries, Homebrew, or Snap.
 
-All you need to install micro is one file, the binary itself. It's as simple as that!
+A desktop entry file and man page can be found in the [assets/packaging](https://github.com/zyedidia/micro/tree/master/assets/packaging) directory.
 
-Download the binary from the [releases](https://github.com/zyedidia/micro/releases) page.
+### Pre-built binaries
 
-On that page you'll see the nightly release, which contains binaries for micro which are built every night,
-and you'll see all the stable releases with the corresponding binaries.
+Pre-built binaries are distributed in [releases](https://github.com/zyedidia/micro/releases).
 
-If you'd like to see more information after installing micro, run `micro -version`.
+To uninstall micro, simply remove the binary, and the configuration directory at `~/.config/micro`.
 
-### Installation script
+#### Quick-install script
 
-There is a great script which can install micro for you by downloading the latest prebuilt binary. You can find it at https://getmic.ro (the github repo for it is [here](https://github.com/benweissmann/getmic.ro)).
+```bash
+curl https://getmic.ro | bash
+```
 
-Then you can easily install micro:
+The script will place the micro binary in the current directory. From there, you can move it to a directory on your path of your choosing (e.g. `sudo mv micro /usr/bin`). See its [GitHub repository](https://github.com/benweissmann/getmic.ro) for more information.
 
-    $ curl https://getmic.ro | bash
+#### Eget
 
-The script will install the micro binary to the current directory.
+With [Eget](https://github.com/zyedidia/eget) installed, you can easily get a pre-built binary:
 
-See the [Github page](https://github.com/benweissmann/getmic.ro) for more information.
+```
+eget zyedidia/micro
+```
+
+Use `--tag VERSION` to download a specific tagged version.
+
+```
+eget --tag nightly zyedidia/micro # download the nightly version (compiled every day at midnight UTC)
+eget --tag v2.0.8 zyedidia/micro  # download version 2.0.8 rather than the latest release
+```
+
+You can install `micro` by adding `--to /usr/local/bin` to the `eget` command, or move the binary manually to a directory on your `$PATH` after the download completes.
+
+See [Eget](https://github.com/zyedidia/eget) for more information.
 
 ### Package managers
 
@@ -106,17 +122,9 @@ You can install micro using Homebrew on Mac:
 brew install micro
 ```
 
-On Windows, you can install micro through [Chocolatey](https://chocolatey.org/) or [Scoop](https://github.com/lukesampson/scoop):
-
-```
-choco install micro
-```
-
-or
-
-```
-scoop install micro
-```
+**Note for Mac:** All micro keybindings use the control or alt (option) key, not the command
+key. By default, macOS terminals do not forward alt key events. To fix this, please see
+the section on [macOS terminals](https://github.com/zyedidia/micro#macos-terminal) further below.
 
 On Linux, you can install micro through [snap](https://snapcraft.io/docs/core/install)
 
@@ -124,74 +132,124 @@ On Linux, you can install micro through [snap](https://snapcraft.io/docs/core/in
 snap install micro --classic
 ```
 
-On OpenBSD, micro is available in the ports tree. It is also available as a binary package.
+Micro is also available through other package managers on Linux such as dnf, AUR, Nix, and package managers
+for other operating systems. These packages are not guaranteed to be up-to-date.
 
-```
-pkg_add -v micro
-```
+<!-- * `apt install micro` (Ubuntu 20.04 `focal`, and Debian `unstable | testing | buster-backports`). At the moment, this package (2.0.1-1) is outdated and has a known bug where debug mode is enabled. -->
+
+* Linux: Available in distro-specific package managers.
+    * `dnf install micro` (Fedora).
+    * `apt install micro` (Ubuntu and Debian).
+    * `pacman -S micro` (Arch Linux).
+    * `emerge app-editors/micro` (Gentoo).
+    * `zypper install micro-editor` (SUSE)
+    * `eopkg install micro` (Solus).
+    * `pacstall -I micro` (Pacstall).
+    * See [wiki](https://github.com/zyedidia/micro/wiki/Installing-Micro) for details about CRUX, Termux.
+* Windows: [Chocolatey](https://chocolatey.org) and [Scoop](https://github.com/lukesampson/scoop).
+    * `choco install micro`.
+    * `scoop install micro`.
+* OpenBSD: Available in the ports tree and also available as a binary package.
+    * `pkd_add -v micro`.
+* NetBSD, macOS, Linux, Illumos, etc. with [pkgsrc](http://www.pkgsrc.org/)-current:
+    * `pkg_add micro`
+* macOS with [MacPorts](https://www.macports.org):
+    * `sudo port install micro`
+
+**Note for Linux desktop environments:**
+
+For interfacing with the local system clipboard, the following tools need to be installed:
+* For X11, `xclip` or `xsel`
+* For [Wayland](https://wayland.freedesktop.org/), `wl-clipboard`
+
+Without these tools installed, micro will use an internal clipboard for copy and paste, but it won't be accessible to external applications.
 
 ### Building from source
 
 If your operating system does not have a binary release, but does run Go, you can build from source.
 
-Make sure that you have Go version 1.5 or greater (Go 1.4 will work if your version supports CGO) and that your `GOPATH` env variable is set (I recommend setting it to `~/go` if you don't have one).
+Make sure that you have Go version 1.16 or greater and Go modules are enabled.
 
 ```
-go get -d github.com/zyedidia/micro/cmd/micro
-cd $GOPATH/src/github.com/zyedidia/micro
-make install
+git clone https://github.com/zyedidia/micro
+cd micro
+make build
+sudo mv micro /usr/local/bin # optional
 ```
 
-The binary will then be installed to `$GOPATH/bin` (or your `$GOBIN`).
+The binary will be placed in the current directory and can be moved to
+anywhere you like (for example `/usr/local/bin`).
 
-Please make sure that when you are working with micro's code, you are working on your `GOPATH`.
+The command `make install` will install the binary to `$GOPATH/bin` or `$GOBIN`.
 
-You can install directly with `go get` (`go get -u github.com/zyedidia/micro/cmd/micro`) but this isn't recommended because it doesn't build micro with version information which is useful for the plugin manager.
+You can install directly with `go get` (`go get github.com/zyedidia/micro/cmd/micro`) but this isn't
+recommended because it doesn't build micro with version information (necessary for the plugin manager),
+and doesn't disable debug mode.
 
-### MacOS terminal
+### Fully static binary
 
-If you are using MacOS, you should consider using [iTerm2](http://iterm2.com/) instead of the default Mac terminal. The iTerm2 terminal has much better mouse support as well as better handling of key events. For best keybinding behavior, choose `xterm defaults` under `Preferences->Profiles->Keys->Load Preset`. The newest versions also support true color.
+By default, the micro binary will dynamically link with core system libraries (this is generally
+recommended for security and portability). However, there is a fully static prebuilt binary that
+is provided for amd64 as `linux-static.tar.gz`, and to build a fully static binary from source, run
 
-### Linux clipboard support
-
-On Linux, clipboard support requires the 'xclip' or 'xsel' commands to be installed.
-
-For Ubuntu:
-
-```sh
-sudo apt-get install xclip
+```
+CGO_ENABLED=0 make build
 ```
 
-If you don't have xclip or xsel, micro will use an internal clipboard for copy and paste, but it won't work with external applications.
+### macOS terminal
+
+If you are using macOS, you should consider using [iTerm2](http://iterm2.com/) instead of the default terminal (Terminal.app). The iTerm2 terminal has much better mouse support as well as better handling of key events. For best keybinding behavior, choose `xterm defaults` under `Preferences->Profiles->Keys->Presets...`, and select `Esc+` for `Left Option Key` in the same menu. The newest versions also support true color.
+
+If you still insist on using the default Mac terminal, be sure to set `Use Option key as Meta key` under
+`Preferences->Profiles->Keyboard` to use <kbd>option</kbd> as <kbd>alt</kbd>.
+
+### WSL and Windows Console
+
+If you use micro within WSL, it is highly recommended that you use the [Windows
+Terminal](https://apps.microsoft.com/store/detail/windows-terminal/9N0DX20HK701?hl=en-us&gl=us)
+instead of the default Windows Console.
+
+If you must use Windows Console for some reason, note that there is a bug in
+Windows Console WSL that causes a font change whenever micro tries to access
+the external clipboard via powershell. To fix this, use an internal clipboard
+with `set clipboard internal` (though your system clipboard will no longer be
+available in micro).
 
 ### Colors and syntax highlighting
 
 If you open micro and it doesn't seem like syntax highlighting is working, this is probably because
-you are using a terminal which does not support 256 color. Try changing the colorscheme to `simple`
-by pressing CtrlE in micro and typing `set colorscheme simple`.
+you are using a terminal which does not support 256 color mode. Try changing the color scheme to `simple`
+by pressing <kbd>Ctrl-e</kbd> in micro and typing `set colorscheme simple`.
 
-If you are using the default Ubuntu terminal, to enable 256 make sure your `TERM` variable is set
+If you are using the default Ubuntu terminal, to enable 256 color mode make sure your `TERM` variable is set
 to `xterm-256color`.
 
 Many of the Windows terminals don't support more than 16 colors, which means
-that micro's default colorscheme won't look very good. You can either set
-the colorscheme to `simple`, or download a better terminal emulator, like
-mintty.
+that micro's default color scheme won't look very good. You can either set
+the color scheme to `simple`, or download and configure a better terminal emulator
+than the Windows default.
 
-### Plan9, Cygwin
+### Cygwin, Mingw, Plan9
 
-Please note that micro uses the amazing [tcell library](https://github.com/gdamore/tcell), but this
+Cygwin, Mingw, and Plan9 are unfortunately not officially supported. In Cygwin and Mingw, micro will often work when run using
+the `winpty` utility:
+
+```
+winpty micro.exe ...
+```
+
+Micro uses the amazing [tcell library](https://github.com/gdamore/tcell), but this
 means that micro is restricted to the platforms tcell supports. As a result, micro does not support
-Plan9, and Cygwin (although this may change in the future). Micro also doesn't support NaCl (but NaCl is deprecated anyways).
+Plan9 or Cygwin (although this may change in the future). Micro also doesn't support NaCl (which is deprecated anyway).
 
-# Usage
+## Usage
 
-Once you have built the editor, simply start it by running `micro path/to/file.txt` or simply `micro` to open an empty buffer.
+Once you have built the editor, start it by running `micro path/to/file.txt` or `micro` to open an empty buffer.
 
-Micro also supports creating buffers from `stdin`:
+micro also supports creating buffers from `stdin`:
 
 ```sh
-ifconfig | micro
+ip a | micro
 ```
 
 You can move the cursor around with the arrow keys and mouse.
@@ -200,26 +258,30 @@ You can also use the mouse to manipulate the text. Simply clicking and dragging
 will select text. You can also double click to enable word selection, and triple
 click to enable line selection.
 
-# Documentation and Help
+## Documentation and Help
 
-Micro has a built-in help system which you can access by pressing `Ctrl-E` and typing `help`. Additionally, you can
+micro has a built-in help system which you can access by pressing <kbd>Ctrl-e</kbd> and typing `help`. Additionally, you can
 view the help files here:
 
-* [main help](https://github.com/zyedidia/micro/tree/master/runtime/help/help.md)
-* [keybindings](https://github.com/zyedidia/micro/tree/master/runtime/help/keybindings.md)
-* [commands](https://github.com/zyedidia/micro/tree/master/runtime/help/commands.md)
-* [colors](https://github.com/zyedidia/micro/tree/master/runtime/help/colors.md)
-* [options](https://github.com/zyedidia/micro/tree/master/runtime/help/options.md)
-* [plugins](https://github.com/zyedidia/micro/tree/master/runtime/help/plugins.md)
+- [main help](https://github.com/zyedidia/micro/tree/master/runtime/help/help.md)
+- [keybindings](https://github.com/zyedidia/micro/tree/master/runtime/help/keybindings.md)
+- [commands](https://github.com/zyedidia/micro/tree/master/runtime/help/commands.md)
+- [colors](https://github.com/zyedidia/micro/tree/master/runtime/help/colors.md)
+- [options](https://github.com/zyedidia/micro/tree/master/runtime/help/options.md)
+- [plugins](https://github.com/zyedidia/micro/tree/master/runtime/help/plugins.md)
 
 I also recommend reading the [tutorial](https://github.com/zyedidia/micro/tree/master/runtime/help/tutorial.md) for
 a brief introduction to the more powerful configuration features micro offers.
 
-# Contributing
+There is also an unofficial Discord, which you can join at https://discord.gg/nhWR6armnR.
+
+## Contributing
 
 If you find any bugs, please report them! I am also happy to accept pull requests from anyone.
 
 You can use the [GitHub issue tracker](https://github.com/zyedidia/micro/issues)
 to report bugs, ask questions, or suggest new features.
 
-For a more informal setting to discuss the editor, you can join the [Gitter chat](https://gitter.im/zyedidia/micro).
+For a more informal setting to discuss the editor, you can join the [Gitter chat](https://gitter.im/zyedidia/micro) or the [Discord](https://discord.gg/nhWR6armnR). You can also use the [Discussions](https://github.com/zyedidia/micro/discussions) section on Github for a forum-like setting or for Q&A.
+
+Sometimes I am unresponsive, and I apologize! If that happens, please ping me.

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+     id="path240" /></svg>

assets/packaging/deb/micro.postinst

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ]; then
+    update-alternatives --install /usr/bin/editor editor /usr/bin/micro 40 \
+      --slave /usr/share/man/man1/editor.1 editor.1 \
+      /usr/share/man/man1/micro.1
+fi

assets/packaging/deb/micro.prerm

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -e
+
+if [ "$1" != "upgrade" ]; then
+    update-alternatives --remove editor /usr/bin/micro
+fi

assets/packaging/micro.1

@@ -1,11 +1,4 @@
-.\" micro manual page - micro(1)
-.\" 
-.\" Copyright © 2017 Zachary Yedidia <zyedidia@gmail.com>
-.\" Copyright © 2017 Collin Warren <anatoly@somethinghub.com>
-.\"
-.\" This document is provided under the same licensing as micro.
-.\" See \usr\share\doc\micro\LICENSE for more information.
-.TH micro 1 "2017-03-28"
+.TH micro 1 "2020-02-10"
 .SH NAME
 micro \- A modern and intuitive terminal-based text editor
 .SH SYNOPSIS
@@ -21,40 +14,99 @@ of modern terminals. It comes as one single, batteries-included, static binary w
 As the name indicates, micro aims to be somewhat of a successor to the nano editor by being easy to install and use in a pinch, but micro also aims to be
 enjoyable to use full time, whether you work in the terminal because you prefer it (like me), or because you need to (over ssh).
 
+Use Ctrl-q to quit, Ctrl-s to save, and Ctrl-g to open the in-editor help menu.
+
 .SH OPTIONS
+.PP
+\-clean
+.RS 4
+Cleans the configuration directory
+.RE
+
 .PP
 \-config-dir dir
 .RS 4
 Specify a custom location for the configuration directory
 .RE
+
 .PP
-\-startpos LINE,COL
+[FILE]:LINE:COL
 .RS 4
 Specify a line and column to start the cursor at when opening a buffer
 .RE
+
 .PP
 \-options
 .RS 4
 Show all option help
 .RE
+
+.PP
+\-debug
+.RS 4
+Enable debug mode (enables logging to ./log.txt)
+.RE
+
 .PP
 \-version
 .RS 4
 Show the version number and information
 .RE
 
+Micro's plugins can be managed at the command line with the following commands.
+.RS 4
+
+.PP
+\-plugin remove [PLUGIN]...
+.RS 4
+Remove plugin(s)
+.RE
+
+.PP
+\-plugin update [PLUGIN]...
+.RS 4
+Update plugin(s) (if no argument is given, updates all plugins)
+.RE
+
+.PP
+\-plugin search [PLUGIN]...
+.RS 4
+Search for a plugin
+.RE
+
+.PP
+\-plugin list
+.RS 4
+List installed plugins
+.RE
+
+.PP
+\-plugin available
+.RS 4
+List available plugins
+.RE
+.RE
+
+Micro's options can also be set via command line arguments for quick
+adjustments. For real configuration, please use the settings.json
+file (see 'help options').
+.RS 4
+
+.PP
+\-option value
+.RS 4
+Set `option` to `value` for this session
+For example: `micro -syntax off file.c`
+.RE
+
+
 .SH CONFIGURATION
 
-Micro uses
-\fI$XDG_CONFIG_HOME/micro\fR
-for configuration by default. If it is not set, micro uses ~/.config/micro.
-Two main configuration files are settings.json, containing the user's
-settings, and bindings.json, containing the user's custom keybindings.
-
-.SH ENVIRONMENT
-Micro's behaviour can be changed by setting environment variables, of which there is currently only one:
-\fIMICRO_TRUECOLOR\fR.
-When MICRO_TRUECOLOR is set to 1, micro will attempt to treat your terminal as a true-color terminal and will be able to make full use of the true-color colorschemes that are included with micro. If MICRO_TRUECOLOR is not set or is set to 0, then micro will only make use of 256 color features and will internally map true-color colorschemes to the nearest colors available. For more information see micro's documentation.
+Micro uses $MICRO_CONFIG_HOME as the configuration directory.
+If this environment variable is not set, it uses $XDG_CONFIG_HOME/micro instead.
+If that environment variable is not set, it uses ~/.config/micro as the configuration directory.
+In the documentation, we use ~/.config/micro to refer to the configuration directory
+(even if it may in fact be somewhere else if you have set either of the above environment variables).
 
 .SH NOTICE
 This manpage is intended only to serve as a quick guide to the invocation of 
@@ -69,5 +121,5 @@ and to report any newly encountered bugs you may find. We strive to correct
 bugs as swiftly as possible.
 
 .SH COPYRIGHT
-Copyright \(co 2017 Zachary Yedidia, Collin Warren, et al.
-See /usr/share/doc/micro/LICENSE and /usr/share/doc/micro/AUTHORS for more information.
+Copyright \(co 2020 Zachary Yedidia, et al. MIT license.
+See \fBhttps://github.com/zyedidia/micro\fP for details.

assets/packaging/micro.desktop

@@ -6,10 +6,11 @@ Comment=Edit text files in a terminal
 
 Icon=micro
 Type=Application
-Categories=terminal;TextEditor;
+Categories=Utility;TextEditor;Development;
 Keywords=text;editor;syntax;terminal;
 
-Exec=micro %U
+Exec=micro %F
 StartupNotify=false
 Terminal=true
+NoDisplay=true
 MimeType=text/plain;text/x-chdr;text/x-csrc;text/x-c++hdr;text/x-c++src;text/x-java;text/x-dsrc;text/x-pascal;text/x-perl;text/x-python;application/x-php;application/x-httpd-php3;application/x-httpd-php4;application/x-httpd-php5;application/xml;text/html;text/css;text/x-sql;text/x-diff;

cmd/micro/actions_other.go

@@ -1,9 +0,0 @@
-// +build plan9 nacl windows
-
-package main
-
-func (v *View) Suspend(usePlugin bool) bool {
-	messenger.Error("Suspend is only supported on Posix")
-
-	return false
-}

cmd/micro/autocomplete.go

@@ -1,249 +0,0 @@
-package main
-
-import (
-	"io/ioutil"
-	"os"
-	"strings"
-)
-
-var pluginCompletions []func(string) []string
-
-// This file is meant (for now) for autocompletion in command mode, not
-// while coding. This helps micro autocomplete commands and then filenames
-// for example with `vsplit filename`.
-
-// FileComplete autocompletes filenames
-func FileComplete(input string) (string, []string) {
-	var sep string = string(os.PathSeparator)
-	dirs := strings.Split(input, sep)
-
-	var files []os.FileInfo
-	var err error
-	if len(dirs) > 1 {
-		directories := strings.Join(dirs[:len(dirs)-1], sep) + sep
-
-		directories = ReplaceHome(directories)
-		files, err = ioutil.ReadDir(directories)
-	} else {
-		files, err = ioutil.ReadDir(".")
-	}
-
-	var suggestions []string
-	if err != nil {
-		return "", suggestions
-	}
-	for _, f := range files {
-		name := f.Name()
-		if f.IsDir() {
-			name += sep
-		}
-		if strings.HasPrefix(name, dirs[len(dirs)-1]) {
-			suggestions = append(suggestions, name)
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		if len(dirs) > 1 {
-			chosen = strings.Join(dirs[:len(dirs)-1], sep) + sep + suggestions[0]
-		} else {
-			chosen = suggestions[0]
-		}
-	} else {
-		if len(dirs) > 1 {
-			chosen = strings.Join(dirs[:len(dirs)-1], sep) + sep
-		}
-	}
-
-	return chosen, suggestions
-}
-
-// CommandComplete autocompletes commands
-func CommandComplete(input string) (string, []string) {
-	var suggestions []string
-	for cmd := range commands {
-		if strings.HasPrefix(cmd, input) {
-			suggestions = append(suggestions, cmd)
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}
-
-// HelpComplete autocompletes help topics
-func HelpComplete(input string) (string, []string) {
-	var suggestions []string
-
-	for _, file := range ListRuntimeFiles(RTHelp) {
-		topic := file.Name()
-		if strings.HasPrefix(topic, input) {
-			suggestions = append(suggestions, topic)
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}
-
-// ColorschemeComplete tab-completes names of colorschemes.
-func ColorschemeComplete(input string) (string, []string) {
-	var suggestions []string
-	files := ListRuntimeFiles(RTColorscheme)
-
-	for _, f := range files {
-		if strings.HasPrefix(f.Name(), input) {
-			suggestions = append(suggestions, f.Name())
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-
-	return chosen, suggestions
-}
-
-func contains(s []string, e string) bool {
-	for _, a := range s {
-		if a == e {
-			return true
-		}
-	}
-	return false
-}
-
-// OptionComplete autocompletes options
-func OptionComplete(input string) (string, []string) {
-	var suggestions []string
-	localSettings := DefaultLocalSettings()
-	for option := range globalSettings {
-		if strings.HasPrefix(option, input) {
-			suggestions = append(suggestions, option)
-		}
-	}
-	for option := range localSettings {
-		if strings.HasPrefix(option, input) && !contains(suggestions, option) {
-			suggestions = append(suggestions, option)
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}
-
-// OptionValueComplete completes values for various options
-func OptionValueComplete(inputOpt, input string) (string, []string) {
-	inputOpt = strings.TrimSpace(inputOpt)
-	var suggestions []string
-	localSettings := DefaultLocalSettings()
-	var optionVal interface{}
-	for k, option := range globalSettings {
-		if k == inputOpt {
-			optionVal = option
-		}
-	}
-	for k, option := range localSettings {
-		if k == inputOpt {
-			optionVal = option
-		}
-	}
-
-	switch optionVal.(type) {
-	case bool:
-		if strings.HasPrefix("on", input) {
-			suggestions = append(suggestions, "on")
-		} else if strings.HasPrefix("true", input) {
-			suggestions = append(suggestions, "true")
-		}
-		if strings.HasPrefix("off", input) {
-			suggestions = append(suggestions, "off")
-		} else if strings.HasPrefix("false", input) {
-			suggestions = append(suggestions, "false")
-		}
-	case string:
-		switch inputOpt {
-		case "colorscheme":
-			_, suggestions = ColorschemeComplete(input)
-		case "fileformat":
-			if strings.HasPrefix("unix", input) {
-				suggestions = append(suggestions, "unix")
-			}
-			if strings.HasPrefix("dos", input) {
-				suggestions = append(suggestions, "dos")
-			}
-		case "sucmd":
-			if strings.HasPrefix("sudo", input) {
-				suggestions = append(suggestions, "sudo")
-			}
-			if strings.HasPrefix("doas", input) {
-				suggestions = append(suggestions, "doas")
-			}
-		}
-	}
-
-	var chosen string
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}
-
-// MakeCompletion registers a function from a plugin for autocomplete commands
-func MakeCompletion(function string) Completion {
-	pluginCompletions = append(pluginCompletions, LuaFunctionComplete(function))
-	return Completion(-len(pluginCompletions))
-}
-
-// PluginComplete autocompletes from plugin function
-func PluginComplete(complete Completion, input string) (chosen string, suggestions []string) {
-	idx := int(-complete) - 1
-
-	if len(pluginCompletions) <= idx {
-		return "", nil
-	}
-	suggestions = pluginCompletions[idx](input)
-
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return
-}
-
-// PluginCmdComplete completes with possible choices for the `> plugin` command
-func PluginCmdComplete(input string) (chosen string, suggestions []string) {
-	for _, cmd := range []string{"install", "remove", "search", "update", "list"} {
-		if strings.HasPrefix(cmd, input) {
-			suggestions = append(suggestions, cmd)
-		}
-	}
-
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}
-
-// PluginnameComplete completes with the names of loaded plugins
-func PluginNameComplete(input string) (chosen string, suggestions []string) {
-	for _, pp := range GetAllPluginPackages() {
-		if strings.HasPrefix(pp.Name, input) {
-			suggestions = append(suggestions, pp.Name)
-		}
-	}
-
-	if len(suggestions) == 1 {
-		chosen = suggestions[0]
-	}
-	return chosen, suggestions
-}

cmd/micro/bindings.go

@@ -1,616 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"os"
-	"strings"
-	"unicode"
-
-	"github.com/flynn/json5"
-	"github.com/zyedidia/tcell"
-)
-
-var bindingsStr map[string]string
-var bindings map[Key][]func(*View, bool) bool
-var mouseBindings map[Key][]func(*View, bool, *tcell.EventMouse) bool
-var helpBinding string
-var kmenuBinding string
-
-var mouseBindingActions = map[string]func(*View, bool, *tcell.EventMouse) bool{
-	"MousePress":       (*View).MousePress,
-	"MouseMultiCursor": (*View).MouseMultiCursor,
-}
-
-var bindingActions = map[string]func(*View, bool) bool{
-	"CursorUp":               (*View).CursorUp,
-	"CursorDown":             (*View).CursorDown,
-	"CursorPageUp":           (*View).CursorPageUp,
-	"CursorPageDown":         (*View).CursorPageDown,
-	"CursorLeft":             (*View).CursorLeft,
-	"CursorRight":            (*View).CursorRight,
-	"CursorStart":            (*View).CursorStart,
-	"CursorEnd":              (*View).CursorEnd,
-	"SelectToStart":          (*View).SelectToStart,
-	"SelectToEnd":            (*View).SelectToEnd,
-	"SelectUp":               (*View).SelectUp,
-	"SelectDown":             (*View).SelectDown,
-	"SelectLeft":             (*View).SelectLeft,
-	"SelectRight":            (*View).SelectRight,
-	"WordRight":              (*View).WordRight,
-	"WordLeft":               (*View).WordLeft,
-	"SelectWordRight":        (*View).SelectWordRight,
-	"SelectWordLeft":         (*View).SelectWordLeft,
-	"DeleteWordRight":        (*View).DeleteWordRight,
-	"DeleteWordLeft":         (*View).DeleteWordLeft,
-	"SelectLine":             (*View).SelectLine,
-	"SelectToStartOfLine":    (*View).SelectToStartOfLine,
-	"SelectToEndOfLine":      (*View).SelectToEndOfLine,
-	"ParagraphPrevious":      (*View).ParagraphPrevious,
-	"ParagraphNext":          (*View).ParagraphNext,
-	"InsertNewline":          (*View).InsertNewline,
-	"InsertSpace":            (*View).InsertSpace,
-	"Backspace":              (*View).Backspace,
-	"Delete":                 (*View).Delete,
-	"InsertTab":              (*View).InsertTab,
-	"Save":                   (*View).Save,
-	"SaveAll":                (*View).SaveAll,
-	"SaveAs":                 (*View).SaveAs,
-	"Find":                   (*View).Find,
-	"FindNext":               (*View).FindNext,
-	"FindPrevious":           (*View).FindPrevious,
-	"Center":                 (*View).Center,
-	"Undo":                   (*View).Undo,
-	"Redo":                   (*View).Redo,
-	"Copy":                   (*View).Copy,
-	"Cut":                    (*View).Cut,
-	"CutLine":                (*View).CutLine,
-	"DuplicateLine":          (*View).DuplicateLine,
-	"DeleteLine":             (*View).DeleteLine,
-	"MoveLinesUp":            (*View).MoveLinesUp,
-	"MoveLinesDown":          (*View).MoveLinesDown,
-	"IndentSelection":        (*View).IndentSelection,
-	"OutdentSelection":       (*View).OutdentSelection,
-	"OutdentLine":            (*View).OutdentLine,
-	"Paste":                  (*View).Paste,
-	"PastePrimary":           (*View).PastePrimary,
-	"SelectAll":              (*View).SelectAll,
-	"OpenFile":               (*View).OpenFile,
-	"Start":                  (*View).Start,
-	"End":                    (*View).End,
-	"PageUp":                 (*View).PageUp,
-	"PageDown":               (*View).PageDown,
-	"SelectPageUp":           (*View).SelectPageUp,
-	"SelectPageDown":         (*View).SelectPageDown,
-	"HalfPageUp":             (*View).HalfPageUp,
-	"HalfPageDown":           (*View).HalfPageDown,
-	"StartOfLine":            (*View).StartOfLine,
-	"EndOfLine":              (*View).EndOfLine,
-	"ToggleHelp":             (*View).ToggleHelp,
-	"ToggleKeyMenu":          (*View).ToggleKeyMenu,
-	"ToggleRuler":            (*View).ToggleRuler,
-	"JumpLine":               (*View).JumpLine,
-	"ClearStatus":            (*View).ClearStatus,
-	"ShellMode":              (*View).ShellMode,
-	"CommandMode":            (*View).CommandMode,
-	"ToggleOverwriteMode":    (*View).ToggleOverwriteMode,
-	"Escape":                 (*View).Escape,
-	"Quit":                   (*View).Quit,
-	"QuitAll":                (*View).QuitAll,
-	"AddTab":                 (*View).AddTab,
-	"PreviousTab":            (*View).PreviousTab,
-	"NextTab":                (*View).NextTab,
-	"NextSplit":              (*View).NextSplit,
-	"PreviousSplit":          (*View).PreviousSplit,
-	"Unsplit":                (*View).Unsplit,
-	"VSplit":                 (*View).VSplitBinding,
-	"HSplit":                 (*View).HSplitBinding,
-	"ToggleMacro":            (*View).ToggleMacro,
-	"PlayMacro":              (*View).PlayMacro,
-	"Suspend":                (*View).Suspend,
-	"ScrollUp":               (*View).ScrollUpAction,
-	"ScrollDown":             (*View).ScrollDownAction,
-	"SpawnMultiCursor":       (*View).SpawnMultiCursor,
-	"SpawnMultiCursorSelect": (*View).SpawnMultiCursorSelect,
-	"RemoveMultiCursor":      (*View).RemoveMultiCursor,
-	"RemoveAllMultiCursors":  (*View).RemoveAllMultiCursors,
-	"SkipMultiCursor":        (*View).SkipMultiCursor,
-	"JumpToMatchingBrace":    (*View).JumpToMatchingBrace,
-
-	// This was changed to InsertNewline but I don't want to break backwards compatibility
-	"InsertEnter": (*View).InsertNewline,
-}
-
-var bindingMouse = map[string]tcell.ButtonMask{
-	"MouseLeft":       tcell.Button1,
-	"MouseMiddle":     tcell.Button2,
-	"MouseRight":      tcell.Button3,
-	"MouseWheelUp":    tcell.WheelUp,
-	"MouseWheelDown":  tcell.WheelDown,
-	"MouseWheelLeft":  tcell.WheelLeft,
-	"MouseWheelRight": tcell.WheelRight,
-}
-
-var bindingKeys = map[string]tcell.Key{
-	"Up":             tcell.KeyUp,
-	"Down":           tcell.KeyDown,
-	"Right":          tcell.KeyRight,
-	"Left":           tcell.KeyLeft,
-	"UpLeft":         tcell.KeyUpLeft,
-	"UpRight":        tcell.KeyUpRight,
-	"DownLeft":       tcell.KeyDownLeft,
-	"DownRight":      tcell.KeyDownRight,
-	"Center":         tcell.KeyCenter,
-	"PageUp":         tcell.KeyPgUp,
-	"PageDown":       tcell.KeyPgDn,
-	"Home":           tcell.KeyHome,
-	"End":            tcell.KeyEnd,
-	"Insert":         tcell.KeyInsert,
-	"Delete":         tcell.KeyDelete,
-	"Help":           tcell.KeyHelp,
-	"Exit":           tcell.KeyExit,
-	"Clear":          tcell.KeyClear,
-	"Cancel":         tcell.KeyCancel,
-	"Print":          tcell.KeyPrint,
-	"Pause":          tcell.KeyPause,
-	"Backtab":        tcell.KeyBacktab,
-	"F1":             tcell.KeyF1,
-	"F2":             tcell.KeyF2,
-	"F3":             tcell.KeyF3,
-	"F4":             tcell.KeyF4,
-	"F5":             tcell.KeyF5,
-	"F6":             tcell.KeyF6,
-	"F7":             tcell.KeyF7,
-	"F8":             tcell.KeyF8,
-	"F9":             tcell.KeyF9,
-	"F10":            tcell.KeyF10,
-	"F11":            tcell.KeyF11,
-	"F12":            tcell.KeyF12,
-	"F13":            tcell.KeyF13,
-	"F14":            tcell.KeyF14,
-	"F15":            tcell.KeyF15,
-	"F16":            tcell.KeyF16,
-	"F17":            tcell.KeyF17,
-	"F18":            tcell.KeyF18,
-	"F19":            tcell.KeyF19,
-	"F20":            tcell.KeyF20,
-	"F21":            tcell.KeyF21,
-	"F22":            tcell.KeyF22,
-	"F23":            tcell.KeyF23,
-	"F24":            tcell.KeyF24,
-	"F25":            tcell.KeyF25,
-	"F26":            tcell.KeyF26,
-	"F27":            tcell.KeyF27,
-	"F28":            tcell.KeyF28,
-	"F29":            tcell.KeyF29,
-	"F30":            tcell.KeyF30,
-	"F31":            tcell.KeyF31,
-	"F32":            tcell.KeyF32,
-	"F33":            tcell.KeyF33,
-	"F34":            tcell.KeyF34,
-	"F35":            tcell.KeyF35,
-	"F36":            tcell.KeyF36,
-	"F37":            tcell.KeyF37,
-	"F38":            tcell.KeyF38,
-	"F39":            tcell.KeyF39,
-	"F40":            tcell.KeyF40,
-	"F41":            tcell.KeyF41,
-	"F42":            tcell.KeyF42,
-	"F43":            tcell.KeyF43,
-	"F44":            tcell.KeyF44,
-	"F45":            tcell.KeyF45,
-	"F46":            tcell.KeyF46,
-	"F47":            tcell.KeyF47,
-	"F48":            tcell.KeyF48,
-	"F49":            tcell.KeyF49,
-	"F50":            tcell.KeyF50,
-	"F51":            tcell.KeyF51,
-	"F52":            tcell.KeyF52,
-	"F53":            tcell.KeyF53,
-	"F54":            tcell.KeyF54,
-	"F55":            tcell.KeyF55,
-	"F56":            tcell.KeyF56,
-	"F57":            tcell.KeyF57,
-	"F58":            tcell.KeyF58,
-	"F59":            tcell.KeyF59,
-	"F60":            tcell.KeyF60,
-	"F61":            tcell.KeyF61,
-	"F62":            tcell.KeyF62,
-	"F63":            tcell.KeyF63,
-	"F64":            tcell.KeyF64,
-	"CtrlSpace":      tcell.KeyCtrlSpace,
-	"CtrlA":          tcell.KeyCtrlA,
-	"CtrlB":          tcell.KeyCtrlB,
-	"CtrlC":          tcell.KeyCtrlC,
-	"CtrlD":          tcell.KeyCtrlD,
-	"CtrlE":          tcell.KeyCtrlE,
-	"CtrlF":          tcell.KeyCtrlF,
-	"CtrlG":          tcell.KeyCtrlG,
-	"CtrlH":          tcell.KeyCtrlH,
-	"CtrlI":          tcell.KeyCtrlI,
-	"CtrlJ":          tcell.KeyCtrlJ,
-	"CtrlK":          tcell.KeyCtrlK,
-	"CtrlL":          tcell.KeyCtrlL,
-	"CtrlM":          tcell.KeyCtrlM,
-	"CtrlN":          tcell.KeyCtrlN,
-	"CtrlO":          tcell.KeyCtrlO,
-	"CtrlP":          tcell.KeyCtrlP,
-	"CtrlQ":          tcell.KeyCtrlQ,
-	"CtrlR":          tcell.KeyCtrlR,
-	"CtrlS":          tcell.KeyCtrlS,
-	"CtrlT":          tcell.KeyCtrlT,
-	"CtrlU":          tcell.KeyCtrlU,
-	"CtrlV":          tcell.KeyCtrlV,
-	"CtrlW":          tcell.KeyCtrlW,
-	"CtrlX":          tcell.KeyCtrlX,
-	"CtrlY":          tcell.KeyCtrlY,
-	"CtrlZ":          tcell.KeyCtrlZ,
-	"CtrlLeftSq":     tcell.KeyCtrlLeftSq,
-	"CtrlBackslash":  tcell.KeyCtrlBackslash,
-	"CtrlRightSq":    tcell.KeyCtrlRightSq,
-	"CtrlCarat":      tcell.KeyCtrlCarat,
-	"CtrlUnderscore": tcell.KeyCtrlUnderscore,
-	"CtrlPageUp":     tcell.KeyCtrlPgUp,
-	"CtrlPageDown":   tcell.KeyCtrlPgDn,
-	"Tab":            tcell.KeyTab,
-	"Esc":            tcell.KeyEsc,
-	"Escape":         tcell.KeyEscape,
-	"Enter":          tcell.KeyEnter,
-	"Backspace":      tcell.KeyBackspace2,
-	"OldBackspace":   tcell.KeyBackspace,
-
-	// I renamed these keys to PageUp and PageDown but I don't want to break someone's keybindings
-	"PgUp":   tcell.KeyPgUp,
-	"PgDown": tcell.KeyPgDn,
-}
-
-// The Key struct holds the data for a keypress (keycode + modifiers)
-type Key struct {
-	keyCode   tcell.Key
-	modifiers tcell.ModMask
-	buttons   tcell.ButtonMask
-	r         rune
-	escape    string
-}
-
-// InitBindings initializes the keybindings for micro
-func InitBindings() {
-	bindings = make(map[Key][]func(*View, bool) bool)
-	bindingsStr = make(map[string]string)
-	mouseBindings = make(map[Key][]func(*View, bool, *tcell.EventMouse) bool)
-
-	var parsed map[string]string
-	defaults := DefaultBindings()
-
-	filename := configDir + "/bindings.json"
-	if _, e := os.Stat(filename); e == nil {
-		input, err := ioutil.ReadFile(filename)
-		if err != nil {
-			TermMessage("Error reading bindings.json file: " + err.Error())
-			return
-		}
-
-		err = json5.Unmarshal(input, &parsed)
-		if err != nil {
-			TermMessage("Error reading bindings.json:", err.Error())
-		}
-	}
-
-	parseBindings(defaults)
-	parseBindings(parsed)
-}
-
-func parseBindings(userBindings map[string]string) {
-	for k, v := range userBindings {
-		BindKey(k, v)
-	}
-}
-
-// findKey will find binding Key 'b' using string 'k'
-func findKey(k string) (b Key, ok bool) {
-	modifiers := tcell.ModNone
-
-	// First, we'll strip off all the modifiers in the name and add them to the
-	// ModMask
-modSearch:
-	for {
-		switch {
-		case strings.HasPrefix(k, "-"):
-			// We optionally support dashes between modifiers
-			k = k[1:]
-		case strings.HasPrefix(k, "Ctrl") && k != "CtrlH":
-			// CtrlH technically does not have a 'Ctrl' modifier because it is really backspace
-			k = k[4:]
-			modifiers |= tcell.ModCtrl
-		case strings.HasPrefix(k, "Alt"):
-			k = k[3:]
-			modifiers |= tcell.ModAlt
-		case strings.HasPrefix(k, "Shift"):
-			k = k[5:]
-			modifiers |= tcell.ModShift
-		case strings.HasPrefix(k, "\x1b"):
-			return Key{
-				keyCode:   -1,
-				modifiers: modifiers,
-				buttons:   -1,
-				r:         0,
-				escape:    k,
-			}, true
-		default:
-			break modSearch
-		}
-	}
-
-	if len(k) == 0 {
-		return Key{buttons: -1}, false
-	}
-
-	// Control is handled specially, since some character codes in bindingKeys
-	// are different when Control is depressed. We should check for Control keys
-	// first.
-	if modifiers&tcell.ModCtrl != 0 {
-		// see if the key is in bindingKeys with the Ctrl prefix.
-		k = string(unicode.ToUpper(rune(k[0]))) + k[1:]
-		if code, ok := bindingKeys["Ctrl"+k]; ok {
-			// It is, we're done.
-			return Key{
-				keyCode:   code,
-				modifiers: modifiers,
-				buttons:   -1,
-				r:         0,
-			}, true
-		}
-	}
-
-	// See if we can find the key in bindingKeys
-	if code, ok := bindingKeys[k]; ok {
-		return Key{
-			keyCode:   code,
-			modifiers: modifiers,
-			buttons:   -1,
-			r:         0,
-		}, true
-	}
-
-	// See if we can find the key in bindingMouse
-	if code, ok := bindingMouse[k]; ok {
-		return Key{
-			modifiers: modifiers,
-			buttons:   code,
-			r:         0,
-		}, true
-	}
-
-	// If we were given one character, then we've got a rune.
-	if len(k) == 1 {
-		return Key{
-			keyCode:   tcell.KeyRune,
-			modifiers: modifiers,
-			buttons:   -1,
-			r:         rune(k[0]),
-		}, true
-	}
-
-	// We don't know what happened.
-	return Key{buttons: -1}, false
-}
-
-// findAction will find 'action' using string 'v'
-func findAction(v string) (action func(*View, bool) bool) {
-	action, ok := bindingActions[v]
-	if !ok {
-		// If the user seems to be binding a function that doesn't exist
-		// We hope that it's a lua function that exists and bind it to that
-		action = LuaFunctionBinding(v)
-	}
-	return action
-}
-
-func findMouseAction(v string) func(*View, bool, *tcell.EventMouse) bool {
-	action, ok := mouseBindingActions[v]
-	if !ok {
-		// If the user seems to be binding a function that doesn't exist
-		// We hope that it's a lua function that exists and bind it to that
-		action = LuaFunctionMouseBinding(v)
-	}
-	return action
-}
-
-// TryBindKey tries to bind a key by writing to configDir/bindings.json
-// This function is unused for now
-func TryBindKey(k, v string) {
-	filename := configDir + "/bindings.json"
-	if _, e := os.Stat(filename); e == nil {
-		input, err := ioutil.ReadFile(filename)
-		if err != nil {
-			TermMessage("Error reading bindings.json file: " + err.Error())
-			return
-		}
-
-		conflict := -1
-		lines := strings.Split(string(input), "\n")
-		for i, l := range lines {
-			parts := strings.Split(l, ":")
-			if len(parts) >= 2 {
-				if strings.Contains(parts[0], k) {
-					conflict = i
-					TermMessage("Warning: Keybinding conflict:", k, " has been overwritten")
-				}
-			}
-		}
-
-		binding := fmt.Sprintf("    \"%s\": \"%s\",", k, v)
-		if conflict == -1 {
-			lines = append([]string{lines[0], binding}, lines[conflict:]...)
-		} else {
-			lines = append(append(lines[:conflict], binding), lines[conflict+1:]...)
-		}
-		txt := strings.Join(lines, "\n")
-		err = ioutil.WriteFile(filename, []byte(txt), 0644)
-		if err != nil {
-			TermMessage("Error")
-		}
-	}
-}
-
-// BindKey takes a key and an action and binds the two together
-func BindKey(k, v string) {
-	key, ok := findKey(k)
-	if !ok {
-		TermMessage("Unknown keybinding: " + k)
-		return
-	}
-	if v == "ToggleHelp" {
-		helpBinding = k
-	}
-	if v == "ToggleKeyMenu" {
-		kmenuBinding = k
-	}
-	if helpBinding == k && v != "ToggleHelp" {
-		helpBinding = ""
-	}
-	if kmenuBinding == k && v != "ToggleKeyMenu" {
-		kmenuBinding = ""
-	}
-
-	actionNames := strings.Split(v, ",")
-	if actionNames[0] == "UnbindKey" {
-		delete(bindings, key)
-		delete(mouseBindings, key)
-		delete(bindingsStr, k)
-		if len(actionNames) == 1 {
-			return
-		}
-		actionNames = append(actionNames[:0], actionNames[1:]...)
-	}
-	actions := make([]func(*View, bool) bool, 0, len(actionNames))
-	mouseActions := make([]func(*View, bool, *tcell.EventMouse) bool, 0, len(actionNames))
-	for _, actionName := range actionNames {
-		if strings.HasPrefix(actionName, "Mouse") {
-			mouseActions = append(mouseActions, findMouseAction(actionName))
-		} else if strings.HasPrefix(actionName, "command:") {
-			cmd := strings.SplitN(actionName, ":", 2)[1]
-			actions = append(actions, CommandAction(cmd))
-		} else if strings.HasPrefix(actionName, "command-edit:") {
-			cmd := strings.SplitN(actionName, ":", 2)[1]
-			actions = append(actions, CommandEditAction(cmd))
-		} else {
-			actions = append(actions, findAction(actionName))
-		}
-	}
-
-	if len(actions) > 0 {
-		// Can't have a binding be both mouse and normal
-		delete(mouseBindings, key)
-		bindings[key] = actions
-		bindingsStr[k] = v
-	} else if len(mouseActions) > 0 {
-		// Can't have a binding be both mouse and normal
-		delete(bindings, key)
-		mouseBindings[key] = mouseActions
-	}
-}
-
-// DefaultBindings returns a map containing micro's default keybindings
-func DefaultBindings() map[string]string {
-	return map[string]string{
-		"Up":             "CursorUp",
-		"Down":           "CursorDown",
-		"Right":          "CursorRight",
-		"Left":           "CursorLeft",
-		"ShiftUp":        "SelectUp",
-		"ShiftDown":      "SelectDown",
-		"ShiftLeft":      "SelectLeft",
-		"ShiftRight":     "SelectRight",
-		"AltLeft":        "WordLeft",
-		"AltRight":       "WordRight",
-		"AltUp":          "MoveLinesUp",
-		"AltDown":        "MoveLinesDown",
-		"AltShiftRight":  "SelectWordRight",
-		"AltShiftLeft":   "SelectWordLeft",
-		"CtrlLeft":       "StartOfLine",
-		"CtrlRight":      "EndOfLine",
-		"CtrlShiftLeft":  "SelectToStartOfLine",
-		"ShiftHome":      "SelectToStartOfLine",
-		"CtrlShiftRight": "SelectToEndOfLine",
-		"ShiftEnd":       "SelectToEndOfLine",
-		"CtrlUp":         "CursorStart",
-		"CtrlDown":       "CursorEnd",
-		"CtrlShiftUp":    "SelectToStart",
-		"CtrlShiftDown":  "SelectToEnd",
-		"Alt-{":          "ParagraphPrevious",
-		"Alt-}":          "ParagraphNext",
-		"Enter":          "InsertNewline",
-		"CtrlH":          "Backspace",
-		"Backspace":      "Backspace",
-		"Alt-CtrlH":      "DeleteWordLeft",
-		"Alt-Backspace":  "DeleteWordLeft",
-		"Tab":            "IndentSelection,InsertTab",
-		"Backtab":        "OutdentSelection,OutdentLine",
-		"CtrlO":          "OpenFile",
-		"CtrlS":          "Save",
-		"CtrlF":          "Find",
-		"CtrlN":          "FindNext",
-		"CtrlP":          "FindPrevious",
-		"CtrlZ":          "Undo",
-		"CtrlY":          "Redo",
-		"CtrlC":          "Copy",
-		"CtrlX":          "Cut",
-		"CtrlK":          "CutLine",
-		"CtrlD":          "DuplicateLine",
-		"CtrlV":          "Paste",
-		"CtrlA":          "SelectAll",
-		"CtrlT":          "AddTab",
-		"Alt,":           "PreviousTab",
-		"Alt.":           "NextTab",
-		"Home":           "StartOfLine",
-		"End":            "EndOfLine",
-		"CtrlHome":       "CursorStart",
-		"CtrlEnd":        "CursorEnd",
-		"PageUp":         "CursorPageUp",
-		"PageDown":       "CursorPageDown",
-		"CtrlPageUp":     "PreviousTab",
-		"CtrlPageDown":   "NextTab",
-		"CtrlG":          "ToggleHelp",
-		"Alt-g":          "ToggleKeyMenu",
-		"CtrlR":          "ToggleRuler",
-		"CtrlL":          "JumpLine",
-		"Delete":         "Delete",
-		"CtrlB":          "ShellMode",
-		"CtrlQ":          "Quit",
-		"CtrlE":          "CommandMode",
-		"CtrlW":          "NextSplit",
-		"CtrlU":          "ToggleMacro",
-		"CtrlJ":          "PlayMacro",
-		"Insert":         "ToggleOverwriteMode",
-
-		// Emacs-style keybindings
-		"Alt-f": "WordRight",
-		"Alt-b": "WordLeft",
-		"Alt-a": "StartOfLine",
-		"Alt-e": "EndOfLine",
-		// "Alt-p": "CursorUp",
-		// "Alt-n": "CursorDown",
-
-		// Integration with file managers
-		"F2":  "Save",
-		"F3":  "Find",
-		"F4":  "Quit",
-		"F7":  "Find",
-		"F10": "Quit",
-		"Esc": "Escape",
-
-		// Mouse bindings
-		"MouseWheelUp":   "ScrollUp",
-		"MouseWheelDown": "ScrollDown",
-		"MouseLeft":      "MousePress",
-		"MouseMiddle":    "PastePrimary",
-		"Ctrl-MouseLeft": "MouseMultiCursor",
-
-		"Alt-n": "SpawnMultiCursor",
-		"Alt-m": "SpawnMultiCursorSelect",
-		"Alt-p": "RemoveMultiCursor",
-		"Alt-c": "RemoveAllMultiCursors",
-		"Alt-x": "SkipMultiCursor",
-	}
-}

cmd/micro/buffer.go

@@ -1,853 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"crypto/md5"
-	"encoding/gob"
-	"errors"
-	"io"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"os/signal"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-	"unicode"
-	"unicode/utf8"
-
-	"github.com/zyedidia/micro/cmd/micro/highlight"
-)
-
-const LargeFileThreshold = 50000
-
-var (
-	// 0 - no line type detected
-	// 1 - lf detected
-	// 2 - crlf detected
-	fileformat = 0
-)
-
-// Buffer stores the text for files that are loaded into the text editor
-// It uses a rope to efficiently store the string and contains some
-// simple functions for saving and wrapper functions for modifying the rope
-type Buffer struct {
-	// The eventhandler for undo/redo
-	*EventHandler
-	// This stores all the text in the buffer as an array of lines
-	*LineArray
-
-	Cursor    Cursor
-	cursors   []*Cursor // for multiple cursors
-	curCursor int       // the current cursor
-
-	// Path to the file on disk
-	Path string
-	// Absolute path to the file on disk
-	AbsPath string
-	// Name of the buffer on the status line
-	name string
-
-	// Whether or not the buffer has been modified since it was opened
-	IsModified bool
-
-	// Stores the last modification time of the file the buffer is pointing to
-	ModTime time.Time
-
-	// NumLines is the number of lines in the buffer
-	NumLines int
-
-	syntaxDef   *highlight.Def
-	highlighter *highlight.Highlighter
-
-	// Hash of the original buffer -- empty if fastdirty is on
-	origHash [md5.Size]byte
-
-	// Buffer local settings
-	Settings map[string]interface{}
-}
-
-// The SerializedBuffer holds the types that get serialized when a buffer is saved
-// These are used for the savecursor and saveundo options
-type SerializedBuffer struct {
-	EventHandler *EventHandler
-	Cursor       Cursor
-	ModTime      time.Time
-}
-
-// NewBufferFromFile opens a new buffer using the given path
-// It will also automatically handle `~`, and line/column with filename:l:c
-// It will return an empty buffer if the path does not exist
-// and an error if the file is a directory
-func NewBufferFromFile(path string) (*Buffer, error) {
-	filename, cursorPosition := GetPathAndCursorPosition(path)
-	filename = ReplaceHome(filename)
-	file, err := os.Open(filename)
-	fileInfo, _ := os.Stat(filename)
-
-	if err == nil && fileInfo.IsDir() {
-		return nil, errors.New(filename + " is a directory")
-	}
-
-	defer file.Close()
-
-	var buf *Buffer
-	if err != nil {
-		// File does not exist -- create an empty buffer with that name
-		buf = NewBufferFromString("", filename)
-	} else {
-		buf = NewBuffer(file, FSize(file), filename, cursorPosition)
-	}
-
-	return buf, nil
-}
-
-// NewBufferFromString creates a new buffer containing the given string
-func NewBufferFromString(text, path string) *Buffer {
-	return NewBuffer(strings.NewReader(text), int64(len(text)), path, nil)
-}
-
-// NewBuffer creates a new buffer from a given reader with a given path
-func NewBuffer(reader io.Reader, size int64, path string, cursorPosition []string) *Buffer {
-	// check if the file is already open in a tab. If it's open return the buffer to that tab
-	if path != "" {
-		for _, tab := range tabs {
-			for _, view := range tab.Views {
-				if view.Buf.Path == path {
-					return view.Buf
-				}
-			}
-		}
-	}
-
-	b := new(Buffer)
-	b.LineArray = NewLineArray(size, reader)
-
-	b.Settings = DefaultLocalSettings()
-	for k, v := range globalSettings {
-		if _, ok := b.Settings[k]; ok {
-			b.Settings[k] = v
-		}
-	}
-
-	if fileformat == 1 {
-		b.Settings["fileformat"] = "unix"
-	} else if fileformat == 2 {
-		b.Settings["fileformat"] = "dos"
-	}
-
-	absPath, _ := filepath.Abs(path)
-
-	b.Path = path
-	b.AbsPath = absPath
-
-	// The last time this file was modified
-	b.ModTime, _ = GetModTime(b.Path)
-
-	b.EventHandler = NewEventHandler(b)
-
-	b.Update()
-	b.UpdateRules()
-
-	if _, err := os.Stat(configDir + "/buffers/"); os.IsNotExist(err) {
-		os.Mkdir(configDir+"/buffers/", os.ModePerm)
-	}
-
-	cursorLocation, cursorLocationError := GetBufferCursorLocation(cursorPosition, b)
-	b.Cursor = Cursor{
-		Loc: cursorLocation,
-		buf: b,
-	}
-
-	InitLocalSettings(b)
-
-	if cursorLocationError != nil && len(*flagStartPos) == 0 && (b.Settings["savecursor"].(bool) || b.Settings["saveundo"].(bool)) {
-		// If either savecursor or saveundo is turned on, we need to load the serialized information
-		// from ~/.config/micro/buffers
-		file, err := os.Open(configDir + "/buffers/" + EscapePath(b.AbsPath))
-		defer file.Close()
-		if err == nil {
-			var buffer SerializedBuffer
-			decoder := gob.NewDecoder(file)
-			gob.Register(TextEvent{})
-			err = decoder.Decode(&buffer)
-			if err != nil {
-				TermMessage(err.Error(), "\n", "You may want to remove the files in ~/.config/micro/buffers (these files store the information for the 'saveundo' and 'savecursor' options) if this problem persists.")
-			}
-			if b.Settings["savecursor"].(bool) {
-				b.Cursor = buffer.Cursor
-				b.Cursor.buf = b
-				b.Cursor.Relocate()
-			}
-
-			if b.Settings["saveundo"].(bool) {
-				// We should only use last time's eventhandler if the file wasn't modified by someone else in the meantime
-				if b.ModTime == buffer.ModTime {
-					b.EventHandler = buffer.EventHandler
-					b.EventHandler.buf = b
-				}
-			}
-		}
-	}
-
-	if !b.Settings["fastdirty"].(bool) {
-		if size > LargeFileThreshold {
-			// If the file is larger than a megabyte fastdirty needs to be on
-			b.Settings["fastdirty"] = true
-		} else {
-			calcHash(b, &b.origHash)
-		}
-	}
-
-	b.cursors = []*Cursor{&b.Cursor}
-
-	return b
-}
-
-func GetBufferCursorLocation(cursorPosition []string, b *Buffer) (Loc, error) {
-	// parse the cursor position. The cursor location is ALWAYS initialised to 0, 0 even when
-	// an error occurs due to lack of arguments or because the arguments are not numbers
-	cursorLocation, cursorLocationError := ParseCursorLocation(cursorPosition)
-
-	// Put the cursor at the first spot. In the logic for cursor position the -startpos
-	// flag is processed first and will overwrite any line/col parameters with colons after the filename
-	if len(*flagStartPos) > 0 || cursorLocationError == nil {
-		var lineNum, colNum int
-		var errPos1, errPos2 error
-
-		positions := strings.Split(*flagStartPos, ",")
-
-		// if the -startpos flag contains enough args use them for the cursor location.
-		// In this case args passed at the end of the filename will be ignored
-		if len(positions) == 2 {
-			lineNum, errPos1 = strconv.Atoi(positions[0])
-			colNum, errPos2 = strconv.Atoi(positions[1])
-		}
-		// if -startpos has invalid arguments, use the arguments from filename.
-		// This will have a default value (0, 0) even when the filename arguments are invalid
-		if errPos1 != nil || errPos2 != nil || len(*flagStartPos) == 0 {
-			// otherwise check if there are any arguments after the filename and use them
-			lineNum = cursorLocation.Y
-			colNum = cursorLocation.X
-		}
-
-		// if some arguments were found make sure they don't go outside the file and cause overflows
-		cursorLocation.Y = lineNum - 1
-		cursorLocation.X = colNum
-		// Check to avoid line overflow
-		if cursorLocation.Y > b.NumLines-1 {
-			cursorLocation.Y = b.NumLines - 1
-		} else if cursorLocation.Y < 0 {
-			cursorLocation.Y = 0
-		}
-		// Check to avoid column overflow
-		if cursorLocation.X > len(b.Line(cursorLocation.Y)) {
-			cursorLocation.X = len(b.Line(cursorLocation.Y))
-		} else if cursorLocation.X < 0 {
-			cursorLocation.X = 0
-		}
-	}
-	return cursorLocation, cursorLocationError
-}
-
-// GetName returns the name that should be displayed in the statusline
-// for this buffer
-func (b *Buffer) GetName() string {
-	if b.name == "" {
-		if b.Path == "" {
-			return "No name"
-		}
-		return b.Path
-	}
-	return b.name
-}
-
-// UpdateRules updates the syntax rules and filetype for this buffer
-// This is called when the colorscheme changes
-func (b *Buffer) UpdateRules() {
-	rehighlight := false
-	var files []*highlight.File
-	for _, f := range ListRuntimeFiles(RTSyntax) {
-		data, err := f.Data()
-		if err != nil {
-			TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-		} else {
-			file, err := highlight.ParseFile(data)
-			if err != nil {
-				TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-				continue
-			}
-			ftdetect, err := highlight.ParseFtDetect(file)
-			if err != nil {
-				TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-				continue
-			}
-
-			ft := b.Settings["filetype"].(string)
-			if (ft == "Unknown" || ft == "") && !rehighlight {
-				if highlight.MatchFiletype(ftdetect, b.Path, b.lines[0].data) {
-					header := new(highlight.Header)
-					header.FileType = file.FileType
-					header.FtDetect = ftdetect
-					b.syntaxDef, err = highlight.ParseDef(file, header)
-					if err != nil {
-						TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-						continue
-					}
-					rehighlight = true
-				}
-			} else {
-				if file.FileType == ft && !rehighlight {
-					header := new(highlight.Header)
-					header.FileType = file.FileType
-					header.FtDetect = ftdetect
-					b.syntaxDef, err = highlight.ParseDef(file, header)
-					if err != nil {
-						TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-						continue
-					}
-					rehighlight = true
-				}
-			}
-			files = append(files, file)
-		}
-	}
-
-	if b.syntaxDef != nil {
-		highlight.ResolveIncludes(b.syntaxDef, files)
-	}
-
-	if b.highlighter == nil || rehighlight {
-		if b.syntaxDef != nil {
-			b.Settings["filetype"] = b.syntaxDef.FileType
-			b.highlighter = highlight.NewHighlighter(b.syntaxDef)
-			if b.Settings["syntax"].(bool) {
-				b.highlighter.HighlightStates(b)
-			}
-		}
-	}
-}
-
-// FileType returns the buffer's filetype
-func (b *Buffer) FileType() string {
-	return b.Settings["filetype"].(string)
-}
-
-// IndentString returns a string representing one level of indentation
-func (b *Buffer) IndentString() string {
-	if b.Settings["tabstospaces"].(bool) {
-		return Spaces(int(b.Settings["tabsize"].(float64)))
-	}
-	return "\t"
-}
-
-// CheckModTime makes sure that the file this buffer points to hasn't been updated
-// by an external program since it was last read
-// If it has, we ask the user if they would like to reload the file
-func (b *Buffer) CheckModTime() {
-	modTime, ok := GetModTime(b.Path)
-	if ok {
-		if modTime != b.ModTime {
-			choice, canceled := messenger.YesNoPrompt("The file has changed since it was last read. Reload file? (y,n)")
-			messenger.Reset()
-			messenger.Clear()
-			if !choice || canceled {
-				// Don't load new changes -- do nothing
-				b.ModTime, _ = GetModTime(b.Path)
-			} else {
-				// Load new changes
-				b.ReOpen()
-			}
-		}
-	}
-}
-
-// ReOpen reloads the current buffer from disk
-func (b *Buffer) ReOpen() {
-	data, err := ioutil.ReadFile(b.Path)
-	txt := string(data)
-
-	if err != nil {
-		messenger.Error(err.Error())
-		return
-	}
-	b.EventHandler.ApplyDiff(txt)
-
-	b.ModTime, _ = GetModTime(b.Path)
-	b.IsModified = false
-	b.Update()
-	b.Cursor.Relocate()
-}
-
-// Update fetches the string from the rope and updates the `text` and `lines` in the buffer
-func (b *Buffer) Update() {
-	b.NumLines = len(b.lines)
-}
-
-// MergeCursors merges any cursors that are at the same position
-// into one cursor
-func (b *Buffer) MergeCursors() {
-	var cursors []*Cursor
-	for i := 0; i < len(b.cursors); i++ {
-		c1 := b.cursors[i]
-		if c1 != nil {
-			for j := 0; j < len(b.cursors); j++ {
-				c2 := b.cursors[j]
-				if c2 != nil && i != j && c1.Loc == c2.Loc {
-					b.cursors[j] = nil
-				}
-			}
-			cursors = append(cursors, c1)
-		}
-	}
-
-	b.cursors = cursors
-
-	for i := range b.cursors {
-		b.cursors[i].Num = i
-	}
-
-	if b.curCursor >= len(b.cursors) {
-		b.curCursor = len(b.cursors) - 1
-	}
-}
-
-// UpdateCursors updates all the cursors indicies
-func (b *Buffer) UpdateCursors() {
-	for i, c := range b.cursors {
-		c.Num = i
-	}
-}
-
-// Save saves the buffer to its default path
-func (b *Buffer) Save() error {
-	return b.SaveAs(b.Path)
-}
-
-// SaveWithSudo saves the buffer to the default path with sudo
-func (b *Buffer) SaveWithSudo() error {
-	return b.SaveAsWithSudo(b.Path)
-}
-
-// Serialize serializes the buffer to configDir/buffers
-func (b *Buffer) Serialize() error {
-	if !b.Settings["savecursor"].(bool) && !b.Settings["saveundo"].(bool) {
-		return nil
-	}
-
-	name := configDir + "/buffers/" + EscapePath(b.AbsPath)
-
-	return overwriteFile(name, func(file io.Writer) error {
-		return gob.NewEncoder(file).Encode(SerializedBuffer{
-			b.EventHandler,
-			b.Cursor,
-			b.ModTime,
-		})
-	})
-}
-
-func init() {
-	gob.Register(TextEvent{})
-	gob.Register(SerializedBuffer{})
-}
-
-// SaveAs saves the buffer to a specified path (filename), creating the file if it does not exist
-func (b *Buffer) SaveAs(filename string) error {
-	b.UpdateRules()
-	if b.Settings["rmtrailingws"].(bool) {
-		for i, l := range b.lines {
-			pos := len(bytes.TrimRightFunc(l.data, unicode.IsSpace))
-
-			if pos < len(l.data) {
-				b.deleteToEnd(Loc{pos, i})
-			}
-		}
-
-		b.Cursor.Relocate()
-	}
-
-	if b.Settings["eofnewline"].(bool) {
-		end := b.End()
-		if b.RuneAt(Loc{end.X - 1, end.Y}) != '\n' {
-			b.Insert(end, "\n")
-		}
-	}
-
-	defer func() {
-		b.ModTime, _ = GetModTime(filename)
-	}()
-
-	// Removes any tilde and replaces with the absolute path to home
-	absFilename := ReplaceHome(filename)
-
-	// Get the leading path to the file | "." is returned if there's no leading path provided
-	if dirname := filepath.Dir(absFilename); dirname != "." {
-		// Check if the parent dirs don't exist
-		if _, statErr := os.Stat(dirname); os.IsNotExist(statErr) {
-			// Prompt to make sure they want to create the dirs that are missing
-			if yes, canceled := messenger.YesNoPrompt("Parent folders \"" + dirname + "\" do not exist. Create them? (y,n)"); yes && !canceled {
-				// Create all leading dir(s) since they don't exist
-				if mkdirallErr := os.MkdirAll(dirname, os.ModePerm); mkdirallErr != nil {
-					// If there was an error creating the dirs
-					return mkdirallErr
-				}
-			} else {
-				// If they canceled the creation of leading dirs
-				return errors.New("Save aborted")
-			}
-		}
-	}
-
-	var fileSize int
-
-	err := overwriteFile(absFilename, func(file io.Writer) (e error) {
-		if len(b.lines) == 0 {
-			return
-		}
-
-		// end of line
-		var eol []byte
-
-		if b.Settings["fileformat"] == "dos" {
-			eol = []byte{'\r', '\n'}
-		} else {
-			eol = []byte{'\n'}
-		}
-
-		// write lines
-		if fileSize, e = file.Write(b.lines[0].data); e != nil {
-			return
-		}
-
-		for _, l := range b.lines[1:] {
-			if _, e = file.Write(eol); e != nil {
-				return
-			}
-
-			if _, e = file.Write(l.data); e != nil {
-				return
-			}
-
-			fileSize += len(eol) + len(l.data)
-		}
-
-		return
-	})
-
-	if err != nil {
-		return err
-	}
-
-	if !b.Settings["fastdirty"].(bool) {
-		if fileSize > LargeFileThreshold {
-			// For large files 'fastdirty' needs to be on
-			b.Settings["fastdirty"] = true
-		} else {
-			calcHash(b, &b.origHash)
-		}
-	}
-
-	b.Path = filename
-	b.IsModified = false
-	return b.Serialize()
-}
-
-// overwriteFile opens the given file for writing, truncating if one exists, and then calls
-// the supplied function with the file as io.Writer object, also making sure the file is
-// closed afterwards.
-func overwriteFile(name string, fn func(io.Writer) error) (err error) {
-	var file *os.File
-
-	if file, err = os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644); err != nil {
-		return
-	}
-
-	defer func() {
-		if e := file.Close(); e != nil && err == nil {
-			err = e
-		}
-	}()
-
-	w := bufio.NewWriter(file)
-
-	if err = fn(w); err != nil {
-		return
-	}
-
-	err = w.Flush()
-	return
-}
-
-// calcHash calculates md5 hash of all lines in the buffer
-func calcHash(b *Buffer, out *[md5.Size]byte) {
-	h := md5.New()
-
-	if len(b.lines) > 0 {
-		h.Write(b.lines[0].data)
-
-		for _, l := range b.lines[1:] {
-			h.Write([]byte{'\n'})
-			h.Write(l.data)
-		}
-	}
-
-	h.Sum((*out)[:0])
-}
-
-// SaveAsWithSudo is the same as SaveAs except it uses a neat trick
-// with tee to use sudo so the user doesn't have to reopen micro with sudo
-func (b *Buffer) SaveAsWithSudo(filename string) error {
-	b.UpdateRules()
-	b.Path = filename
-
-	// Shut down the screen because we're going to interact directly with the shell
-	screen.Fini()
-	screen = nil
-
-	// Set up everything for the command
-	cmd := exec.Command(globalSettings["sucmd"].(string), "tee", filename)
-	cmd.Stdin = bytes.NewBufferString(b.SaveString(b.Settings["fileformat"] == "dos"))
-
-	// This is a trap for Ctrl-C so that it doesn't kill micro
-	// Instead we trap Ctrl-C to kill the program we're running
-	c := make(chan os.Signal, 1)
-	signal.Notify(c, os.Interrupt)
-	go func() {
-		for range c {
-			cmd.Process.Kill()
-		}
-	}()
-
-	// Start the command
-	cmd.Start()
-	err := cmd.Wait()
-
-	// Start the screen back up
-	InitScreen()
-	if err == nil {
-		b.IsModified = false
-		b.ModTime, _ = GetModTime(filename)
-		b.Serialize()
-	}
-	return err
-}
-
-// Modified returns if this buffer has been modified since
-// being opened
-func (b *Buffer) Modified() bool {
-	if b.Settings["fastdirty"].(bool) {
-		return b.IsModified
-	}
-
-	var buff [md5.Size]byte
-
-	calcHash(b, &buff)
-	return buff != b.origHash
-}
-
-func (b *Buffer) insert(pos Loc, value []byte) {
-	b.IsModified = true
-	b.LineArray.insert(pos, value)
-	b.Update()
-}
-func (b *Buffer) remove(start, end Loc) string {
-	b.IsModified = true
-	sub := b.LineArray.remove(start, end)
-	b.Update()
-	return sub
-}
-func (b *Buffer) deleteToEnd(start Loc) {
-	b.IsModified = true
-	b.LineArray.DeleteToEnd(start)
-	b.Update()
-}
-
-// Start returns the location of the first character in the buffer
-func (b *Buffer) Start() Loc {
-	return Loc{0, 0}
-}
-
-// End returns the location of the last character in the buffer
-func (b *Buffer) End() Loc {
-	return Loc{utf8.RuneCount(b.lines[b.NumLines-1].data), b.NumLines - 1}
-}
-
-// RuneAt returns the rune at a given location in the buffer
-func (b *Buffer) RuneAt(loc Loc) rune {
-	line := b.LineRunes(loc.Y)
-	if len(line) > 0 {
-		return line[loc.X]
-	}
-	return '\n'
-}
-
-// LineBytes returns a single line as an array of runes
-func (b *Buffer) LineBytes(n int) []byte {
-	if n >= len(b.lines) {
-		return []byte{}
-	}
-	return b.lines[n].data
-}
-
-// LineRunes returns a single line as an array of runes
-func (b *Buffer) LineRunes(n int) []rune {
-	if n >= len(b.lines) {
-		return []rune{}
-	}
-	return toRunes(b.lines[n].data)
-}
-
-// Line returns a single line
-func (b *Buffer) Line(n int) string {
-	if n >= len(b.lines) {
-		return ""
-	}
-	return string(b.lines[n].data)
-}
-
-// LinesNum returns the number of lines in the buffer
-func (b *Buffer) LinesNum() int {
-	return len(b.lines)
-}
-
-// Lines returns an array of strings containing the lines from start to end
-func (b *Buffer) Lines(start, end int) []string {
-	lines := b.lines[start:end]
-	var slice []string
-	for _, line := range lines {
-		slice = append(slice, string(line.data))
-	}
-	return slice
-}
-
-// Len gives the length of the buffer
-func (b *Buffer) Len() (n int) {
-	for _, l := range b.lines {
-		n += utf8.RuneCount(l.data)
-	}
-
-	if len(b.lines) > 1 {
-		n += len(b.lines) - 1 // account for newlines
-	}
-
-	return
-}
-
-// MoveLinesUp moves the range of lines up one row
-func (b *Buffer) MoveLinesUp(start int, end int) {
-	// 0 < start < end <= len(b.lines)
-	if start < 1 || start >= end || end > len(b.lines) {
-		return // what to do? FIXME
-	}
-	if end == len(b.lines) {
-		b.Insert(
-			Loc{
-				utf8.RuneCount(b.lines[end-1].data),
-				end - 1,
-			},
-			"\n"+b.Line(start-1),
-		)
-	} else {
-		b.Insert(
-			Loc{0, end},
-			b.Line(start-1)+"\n",
-		)
-	}
-	b.Remove(
-		Loc{0, start - 1},
-		Loc{0, start},
-	)
-}
-
-// MoveLinesDown moves the range of lines down one row
-func (b *Buffer) MoveLinesDown(start int, end int) {
-	// 0 <= start < end < len(b.lines)
-	// if end == len(b.lines), we can't do anything here because the
-	// last line is unaccessible, FIXME
-	if start < 0 || start >= end || end >= len(b.lines)-1 {
-		return // what to do? FIXME
-	}
-	b.Insert(
-		Loc{0, start},
-		b.Line(end)+"\n",
-	)
-	end++
-	b.Remove(
-		Loc{0, end},
-		Loc{0, end + 1},
-	)
-}
-
-// ClearMatches clears all of the syntax highlighting for this buffer
-func (b *Buffer) ClearMatches() {
-	for i := range b.lines {
-		b.SetMatch(i, nil)
-		b.SetState(i, nil)
-	}
-}
-
-func (b *Buffer) clearCursors() {
-	for i := 1; i < len(b.cursors); i++ {
-		b.cursors[i] = nil
-	}
-	b.cursors = b.cursors[:1]
-	b.UpdateCursors()
-	b.Cursor.ResetSelection()
-}
-
-var bracePairs = [][2]rune{
-	{'(', ')'},
-	{'{', '}'},
-	{'[', ']'},
-}
-
-// FindMatchingBrace returns the location in the buffer of the matching bracket
-// It is given a brace type containing the open and closing character, (for example
-// '{' and '}') as well as the location to match from
-func (b *Buffer) FindMatchingBrace(braceType [2]rune, start Loc) Loc {
-	curLine := b.LineRunes(start.Y)
-	startChar := curLine[start.X]
-	var i int
-	if startChar == braceType[0] {
-		for y := start.Y; y < b.NumLines; y++ {
-			l := b.LineRunes(y)
-			xInit := 0
-			if y == start.Y {
-				xInit = start.X
-			}
-			for x := xInit; x < len(l); x++ {
-				r := l[x]
-				if r == braceType[0] {
-					i++
-				} else if r == braceType[1] {
-					i--
-					if i == 0 {
-						return Loc{x, y}
-					}
-				}
-			}
-		}
-	} else if startChar == braceType[1] {
-		for y := start.Y; y >= 0; y-- {
-			l := []rune(string(b.lines[y].data))
-			xInit := len(l) - 1
-			if y == start.Y {
-				xInit = start.X
-			}
-			for x := xInit; x >= 0; x-- {
-				r := l[x]
-				if r == braceType[0] {
-					i--
-					if i == 0 {
-						return Loc{x, y}
-					}
-				} else if r == braceType[1] {
-					i++
-				}
-			}
-		}
-	}
-	return start
-}

cmd/micro/buffer_test.go

@@ -1,117 +0,0 @@
-package main
-
-import (
-	"testing"
-)
-
-func TestGetBufferCursorLocationEmptyArgs(t *testing.T) {
-	buf := NewBufferFromString("this is my\nbuffer\nfile\nhello", "")
-
-	location, err := GetBufferCursorLocation(nil, buf)
-
-	assertEqual(t, 0, location.Y)
-	assertEqual(t, 0, location.X)
-
-	// an error is present due to the cursorLocation being nil
-	assertTrue(t, err != nil)
-
-}
-
-func TestGetBufferCursorLocationStartposFlag(t *testing.T) {
-	buf := NewBufferFromString("this is my\nbuffer\nfile\nhello", "")
-
-	*flagStartPos = "1,2"
-
-	location, err := GetBufferCursorLocation(nil, buf)
-
-	// note: 1 is subtracted from the line to get the correct index in the buffer
-	assertTrue(t, 0 == location.Y)
-	assertTrue(t, 2 == location.X)
-
-	// an error is present due to the cursorLocation being nil
-	assertTrue(t, err != nil)
-}
-
-func TestGetBufferCursorLocationInvalidStartposFlag(t *testing.T) {
-	buf := NewBufferFromString("this is my\nbuffer\nfile\nhello", "")
-
-	*flagStartPos = "apples,2"
-
-	location, err := GetBufferCursorLocation(nil, buf)
-	// expect to default to the start of the file, which is 0,0
-	assertEqual(t, 0, location.Y)
-	assertEqual(t, 0, location.X)
-
-	// an error is present due to the cursorLocation being nil
-	assertTrue(t, err != nil)
-}
-func TestGetBufferCursorLocationStartposFlagAndCursorPosition(t *testing.T) {
-	text := "this is my\nbuffer\nfile\nhello"
-	cursorPosition := []string{"3", "1"}
-
-	buf := NewBufferFromString(text, "")
-
-	*flagStartPos = "1,2"
-
-	location, err := GetBufferCursorLocation(cursorPosition, buf)
-	// expect to have the flag positions, not the cursor position
-	// note: 1 is subtracted from the line to get the correct index in the buffer
-	assertEqual(t, 0, location.Y)
-	assertEqual(t, 2, location.X)
-
-	assertTrue(t, err == nil)
-}
-func TestGetBufferCursorLocationCursorPositionAndInvalidStartposFlag(t *testing.T) {
-	text := "this is my\nbuffer\nfile\nhello"
-	cursorPosition := []string{"3", "1"}
-
-	buf := NewBufferFromString(text, "")
-
-	*flagStartPos = "apples,2"
-
-	location, err := GetBufferCursorLocation(cursorPosition, buf)
-	// expect to have the flag positions, not the cursor position
-	// note: 1 is subtracted from the line to get the correct index in the buffer
-	assertEqual(t, 2, location.Y)
-	assertEqual(t, 1, location.X)
-
-	// no errors this time as cursorPosition is not nil
-	assertTrue(t, err == nil)
-}
-
-func TestGetBufferCursorLocationNoErrorWhenOverflowWithStartpos(t *testing.T) {
-	text := "this is my\nbuffer\nfile\nhello"
-
-	buf := NewBufferFromString(text, "")
-
-	*flagStartPos = "50,50"
-
-	location, err := GetBufferCursorLocation(nil, buf)
-	// expect to have the flag positions, not the cursor position
-	assertEqual(t, buf.NumLines-1, location.Y)
-	assertEqual(t, 5, location.X)
-
-	// error is expected as cursorPosition is nil
-	assertTrue(t, err != nil)
-}
-func TestGetBufferCursorLocationNoErrorWhenOverflowWithCursorPosition(t *testing.T) {
-	text := "this is my\nbuffer\nfile\nhello"
-	cursorPosition := []string{"50", "2"}
-
-	*flagStartPos = ""
-
-	buf := NewBufferFromString(text, "")
-
-	location, err := GetBufferCursorLocation(cursorPosition, buf)
-	// expect to have the flag positions, not the cursor position
-	assertEqual(t, buf.NumLines-1, location.Y)
-	assertEqual(t, 2, location.X)
-
-	// error is expected as cursorPosition is nil
-	assertTrue(t, err == nil)
-}
-
-//func TestGetBufferCursorLocationColonArgs(t *testing.T) {
-//	buf := new(Buffer)
-
-//}

cmd/micro/cellview.go

@@ -1,238 +0,0 @@
-package main
-
-import (
-	"github.com/mattn/go-runewidth"
-	"github.com/zyedidia/tcell"
-)
-
-func min(a, b int) int {
-	if a <= b {
-		return a
-	}
-	return b
-}
-
-func visualToCharPos(visualIndex int, lineN int, str string, buf *Buffer, tabsize int) (int, int, *tcell.Style) {
-	charPos := 0
-	var lineIdx int
-	var lastWidth int
-	var style *tcell.Style
-	var width int
-	var rw int
-	for i, c := range str {
-		// width := StringWidth(str[:i], tabsize)
-
-		if group, ok := buf.Match(lineN)[charPos]; ok {
-			s := GetColor(group.String())
-			style = &s
-		}
-
-		if width >= visualIndex {
-			return charPos, visualIndex - lastWidth, style
-		}
-
-		if i != 0 {
-			charPos++
-			lineIdx += rw
-		}
-		lastWidth = width
-		rw = 0
-		if c == '\t' {
-			rw = tabsize - (lineIdx % tabsize)
-			width += rw
-		} else {
-			rw = runewidth.RuneWidth(c)
-			width += rw
-		}
-	}
-
-	return -1, -1, style
-}
-
-type Char struct {
-	visualLoc Loc
-	realLoc   Loc
-	char      rune
-	// The actual character that is drawn
-	// This is only different from char if it's for example hidden character
-	drawChar rune
-	style    tcell.Style
-	width    int
-}
-
-type CellView struct {
-	lines [][]*Char
-}
-
-func (c *CellView) Draw(buf *Buffer, top, height, left, width int) {
-	if width <= 0 {
-		return
-	}
-
-	matchingBrace := Loc{-1, -1}
-	// bracePairs is defined in buffer.go
-	if buf.Settings["matchbrace"].(bool) {
-		for _, bp := range bracePairs {
-			curX := buf.Cursor.X
-			curLoc := buf.Cursor.Loc
-			if buf.Settings["matchbraceleft"].(bool) {
-				if curX > 0 {
-					curX--
-					curLoc = curLoc.Move(-1, buf)
-				}
-			}
-
-			r := buf.Cursor.RuneUnder(curX)
-			if r == bp[0] || r == bp[1] {
-				matchingBrace = buf.FindMatchingBrace(bp, curLoc)
-			}
-		}
-	}
-
-	tabsize := int(buf.Settings["tabsize"].(float64))
-	softwrap := buf.Settings["softwrap"].(bool)
-	indentrunes := []rune(buf.Settings["indentchar"].(string))
-	// if empty indentchar settings, use space
-	if indentrunes == nil || len(indentrunes) == 0 {
-		indentrunes = []rune{' '}
-	}
-	indentchar := indentrunes[0]
-
-	start := buf.Cursor.Y
-	if buf.Settings["syntax"].(bool) && buf.syntaxDef != nil {
-		if start > 0 && buf.lines[start-1].rehighlight {
-			buf.highlighter.ReHighlightLine(buf, start-1)
-			buf.lines[start-1].rehighlight = false
-		}
-
-		buf.highlighter.ReHighlightStates(buf, start)
-
-		buf.highlighter.HighlightMatches(buf, top, top+height)
-	}
-
-	c.lines = make([][]*Char, 0)
-
-	viewLine := 0
-	lineN := top
-
-	curStyle := defStyle
-	for viewLine < height {
-		if lineN >= len(buf.lines) {
-			break
-		}
-
-		lineStr := buf.Line(lineN)
-		line := []rune(lineStr)
-
-		colN, startOffset, startStyle := visualToCharPos(left, lineN, lineStr, buf, tabsize)
-		if colN < 0 {
-			colN = len(line)
-		}
-		viewCol := -startOffset
-		if startStyle != nil {
-			curStyle = *startStyle
-		}
-
-		// We'll either draw the length of the line, or the width of the screen
-		// whichever is smaller
-		lineLength := min(StringWidth(lineStr, tabsize), width)
-		c.lines = append(c.lines, make([]*Char, lineLength))
-
-		wrap := false
-		// We only need to wrap if the length of the line is greater than the width of the terminal screen
-		if softwrap && StringWidth(lineStr, tabsize) > width {
-			wrap = true
-			// We're going to draw the entire line now
-			lineLength = StringWidth(lineStr, tabsize)
-		}
-
-		for viewCol < lineLength {
-			if colN >= len(line) {
-				break
-			}
-			if group, ok := buf.Match(lineN)[colN]; ok {
-				curStyle = GetColor(group.String())
-			}
-
-			char := line[colN]
-
-			if viewCol >= 0 {
-				st := curStyle
-				if colN == matchingBrace.X && lineN == matchingBrace.Y && !buf.Cursor.HasSelection() {
-					st = curStyle.Reverse(true)
-				}
-				if viewCol < len(c.lines[viewLine]) {
-					c.lines[viewLine][viewCol] = &Char{Loc{viewCol, viewLine}, Loc{colN, lineN}, char, char, st, 1}
-				}
-			}
-			if char == '\t' {
-				charWidth := tabsize - (viewCol+left)%tabsize
-				if viewCol >= 0 {
-					c.lines[viewLine][viewCol].drawChar = indentchar
-					c.lines[viewLine][viewCol].width = charWidth
-
-					indentStyle := curStyle
-					ch := buf.Settings["indentchar"].(string)
-					if group, ok := colorscheme["indent-char"]; ok && !IsStrWhitespace(ch) && ch != "" {
-						indentStyle = group
-					}
-
-					c.lines[viewLine][viewCol].style = indentStyle
-				}
-
-				for i := 1; i < charWidth; i++ {
-					viewCol++
-					if viewCol >= 0 && viewCol < lineLength && viewCol < len(c.lines[viewLine]) {
-						c.lines[viewLine][viewCol] = &Char{Loc{viewCol, viewLine}, Loc{colN, lineN}, char, ' ', curStyle, 1}
-					}
-				}
-				viewCol++
-			} else if runewidth.RuneWidth(char) > 1 {
-				charWidth := runewidth.RuneWidth(char)
-				if viewCol >= 0 {
-					c.lines[viewLine][viewCol].width = charWidth
-				}
-				for i := 1; i < charWidth; i++ {
-					viewCol++
-					if viewCol >= 0 && viewCol < lineLength && viewCol < len(c.lines[viewLine]) {
-						c.lines[viewLine][viewCol] = &Char{Loc{viewCol, viewLine}, Loc{colN, lineN}, char, ' ', curStyle, 1}
-					}
-				}
-				viewCol++
-			} else {
-				viewCol++
-			}
-			colN++
-
-			if wrap && viewCol >= width {
-				viewLine++
-
-				// If we go too far soft wrapping we have to cut off
-				if viewLine >= height {
-					break
-				}
-
-				nextLine := line[colN:]
-				lineLength := min(StringWidth(string(nextLine), tabsize), width)
-				c.lines = append(c.lines, make([]*Char, lineLength))
-
-				viewCol = 0
-			}
-
-		}
-		if group, ok := buf.Match(lineN)[len(line)]; ok {
-			curStyle = GetColor(group.String())
-		}
-
-		// newline
-		viewLine++
-		lineN++
-	}
-
-	for i := top; i < top+height; i++ {
-		if i >= buf.NumLines {
-			break
-		}
-		buf.SetMatch(i, nil)
-	}
-}

cmd/micro/clean.go

@@ -0,0 +1,148 @@
+package main
+
+import (
+	"bufio"
+	"encoding/gob"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/config"
+)
+
+func shouldContinue() bool {
+	reader := bufio.NewReader(os.Stdin)
+	fmt.Print("Continue [Y/n]: ")
+	text, err := reader.ReadString('\n')
+	if err != nil {
+		fmt.Println(err)
+		return false
+	}
+
+	text = strings.TrimRight(text, "\r\n")
+
+	return len(text) == 0 || strings.ToLower(text)[0] == 'y'
+}
+
+// CleanConfig performs cleanup in the user's configuration directory
+func CleanConfig() {
+	fmt.Println("Cleaning your configuration directory at", config.ConfigDir)
+	fmt.Printf("Please consider backing up %s before continuing\n", config.ConfigDir)
+
+	if !shouldContinue() {
+		fmt.Println("Stopping early")
+		return
+	}
+
+	fmt.Println("Cleaning default settings")
+	config.WriteSettings(filepath.Join(config.ConfigDir, "settings.json"))
+
+	// detect unused options
+	var unusedOptions []string
+	defaultSettings := config.DefaultAllSettings()
+	for k := range config.GlobalSettings {
+		if _, ok := defaultSettings[k]; !ok {
+			valid := false
+			for _, p := range config.Plugins {
+				if strings.HasPrefix(k, p.Name+".") || k == p.Name {
+					valid = true
+				}
+			}
+			if !valid {
+				unusedOptions = append(unusedOptions, k)
+			}
+		}
+	}
+
+	if len(unusedOptions) > 0 {
+		fmt.Println("The following options are unused:")
+
+		sort.Strings(unusedOptions)
+
+		for _, s := range unusedOptions {
+			fmt.Printf("%s (value: %v)\n", s, config.GlobalSettings[s])
+		}
+
+		fmt.Printf("These options will be removed from %s\n", filepath.Join(config.ConfigDir, "settings.json"))
+
+		if shouldContinue() {
+			for _, s := range unusedOptions {
+				delete(config.GlobalSettings, s)
+			}
+
+			err := config.OverwriteSettings(filepath.Join(config.ConfigDir, "settings.json"))
+			if err != nil {
+				fmt.Println("Error writing settings.json file: " + err.Error())
+			}
+
+			fmt.Println("Removed unused options")
+			fmt.Print("\n\n")
+		}
+	}
+
+	// detect incorrectly formatted buffer/ files
+	files, err := ioutil.ReadDir(filepath.Join(config.ConfigDir, "buffers"))
+	if err == nil {
+		var badFiles []string
+		var buffer buffer.SerializedBuffer
+		for _, f := range files {
+			fname := filepath.Join(config.ConfigDir, "buffers", f.Name())
+			file, e := os.Open(fname)
+
+			if e == nil {
+				decoder := gob.NewDecoder(file)
+				err = decoder.Decode(&buffer)
+
+				if err != nil && f.Name() != "history" {
+					badFiles = append(badFiles, fname)
+				}
+				file.Close()
+			}
+		}
+
+		if len(badFiles) > 0 {
+			fmt.Printf("Detected %d files with an invalid format in %s\n", len(badFiles), filepath.Join(config.ConfigDir, "buffers"))
+			fmt.Println("These files store cursor and undo history.")
+			fmt.Printf("Removing badly formatted files in %s\n", filepath.Join(config.ConfigDir, "buffers"))
+
+			if shouldContinue() {
+				removed := 0
+				for _, f := range badFiles {
+					err := os.Remove(f)
+					if err != nil {
+						fmt.Println(err)
+						continue
+					}
+					removed++
+				}
+
+				if removed == 0 {
+					fmt.Println("Failed to remove files")
+				} else {
+					fmt.Printf("Removed %d badly formatted files\n", removed)
+				}
+				fmt.Print("\n\n")
+			}
+		}
+	}
+
+	// detect plugins/ directory
+	plugins := filepath.Join(config.ConfigDir, "plugins")
+	if stat, err := os.Stat(plugins); err == nil && stat.IsDir() {
+		fmt.Printf("Found directory %s\n", plugins)
+		fmt.Printf("Plugins should now be stored in %s\n", filepath.Join(config.ConfigDir, "plug"))
+		fmt.Printf("Removing %s\n", plugins)
+
+		if shouldContinue() {
+			os.RemoveAll(plugins)
+		}
+
+		fmt.Print("\n\n")
+	}
+
+	fmt.Println("Done cleaning")
+}

cmd/micro/colorscheme.go

@@ -1,260 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"regexp"
-	"strconv"
-	"strings"
-
-	"github.com/zyedidia/tcell"
-)
-
-// Colorscheme is a map from string to style -- it represents a colorscheme
-type Colorscheme map[string]tcell.Style
-
-// The current colorscheme
-var colorscheme Colorscheme
-
-// GetColor takes in a syntax group and returns the colorscheme's style for that group
-func GetColor(color string) tcell.Style {
-	st := defStyle
-	if color == "" {
-		return st
-	}
-	groups := strings.Split(color, ".")
-	if len(groups) > 1 {
-		curGroup := ""
-		for i, g := range groups {
-			if i != 0 {
-				curGroup += "."
-			}
-			curGroup += g
-			if style, ok := colorscheme[curGroup]; ok {
-				st = style
-			}
-		}
-	} else if style, ok := colorscheme[color]; ok {
-		st = style
-	} else {
-		st = StringToStyle(color)
-	}
-
-	return st
-}
-
-// ColorschemeExists checks if a given colorscheme exists
-func ColorschemeExists(colorschemeName string) bool {
-	return FindRuntimeFile(RTColorscheme, colorschemeName) != nil
-}
-
-// InitColorscheme picks and initializes the colorscheme when micro starts
-func InitColorscheme() {
-	colorscheme = make(Colorscheme)
-	defStyle = tcell.StyleDefault.
-		Foreground(tcell.ColorDefault).
-		Background(tcell.ColorDefault)
-	if screen != nil {
-		// screen.SetStyle(defStyle)
-	}
-
-	LoadDefaultColorscheme()
-}
-
-// LoadDefaultColorscheme loads the default colorscheme from $(configDir)/colorschemes
-func LoadDefaultColorscheme() {
-	LoadColorscheme(globalSettings["colorscheme"].(string))
-}
-
-// LoadColorscheme loads the given colorscheme from a directory
-func LoadColorscheme(colorschemeName string) {
-	file := FindRuntimeFile(RTColorscheme, colorschemeName)
-	if file == nil {
-		TermMessage(colorschemeName, "is not a valid colorscheme")
-	} else {
-		if data, err := file.Data(); err != nil {
-			TermMessage("Error loading colorscheme:", err)
-		} else {
-			colorscheme = ParseColorscheme(string(data))
-		}
-	}
-}
-
-// ParseColorscheme parses the text definition for a colorscheme and returns the corresponding object
-// Colorschemes are made up of color-link statements linking a color group to a list of colors
-// For example, color-link keyword (blue,red) makes all keywords have a blue foreground and
-// red background
-func ParseColorscheme(text string) Colorscheme {
-	parser := regexp.MustCompile(`color-link\s+(\S*)\s+"(.*)"`)
-
-	lines := strings.Split(text, "\n")
-
-	c := make(Colorscheme)
-
-	for _, line := range lines {
-		if strings.TrimSpace(line) == "" ||
-			strings.TrimSpace(line)[0] == '#' {
-			// Ignore this line
-			continue
-		}
-
-		matches := parser.FindSubmatch([]byte(line))
-		if len(matches) == 3 {
-			link := string(matches[1])
-			colors := string(matches[2])
-
-			style := StringToStyle(colors)
-			c[link] = style
-
-			if link == "default" {
-				defStyle = style
-			}
-			if screen != nil {
-				// screen.SetStyle(defStyle)
-			}
-		} else {
-			fmt.Println("Color-link statement is not valid:", line)
-		}
-	}
-
-	return c
-}
-
-// StringToStyle returns a style from a string
-// The strings must be in the format "extra foregroundcolor,backgroundcolor"
-// The 'extra' can be bold, reverse, or underline
-func StringToStyle(str string) tcell.Style {
-	var fg, bg string
-	spaceSplit := strings.Split(str, " ")
-	var split []string
-	if len(spaceSplit) > 1 {
-		split = strings.Split(spaceSplit[1], ",")
-	} else {
-		split = strings.Split(str, ",")
-	}
-	if len(split) > 1 {
-		fg, bg = split[0], split[1]
-	} else {
-		fg = split[0]
-	}
-	fg = strings.TrimSpace(fg)
-	bg = strings.TrimSpace(bg)
-
-	var fgColor, bgColor tcell.Color
-	if fg == "" {
-		fgColor, _, _ = defStyle.Decompose()
-	} else {
-		fgColor = StringToColor(fg)
-	}
-	if bg == "" {
-		_, bgColor, _ = defStyle.Decompose()
-	} else {
-		bgColor = StringToColor(bg)
-	}
-
-	style := defStyle.Foreground(fgColor).Background(bgColor)
-	if strings.Contains(str, "bold") {
-		style = style.Bold(true)
-	}
-	if strings.Contains(str, "reverse") {
-		style = style.Reverse(true)
-	}
-	if strings.Contains(str, "underline") {
-		style = style.Underline(true)
-	}
-	return style
-}
-
-// StringToColor returns a tcell color from a string representation of a color
-// We accept either bright... or light... to mean the brighter version of a color
-func StringToColor(str string) tcell.Color {
-	switch str {
-	case "black":
-		return tcell.ColorBlack
-	case "red":
-		return tcell.ColorMaroon
-	case "green":
-		return tcell.ColorGreen
-	case "yellow":
-		return tcell.ColorOlive
-	case "blue":
-		return tcell.ColorNavy
-	case "magenta":
-		return tcell.ColorPurple
-	case "cyan":
-		return tcell.ColorTeal
-	case "white":
-		return tcell.ColorSilver
-	case "brightblack", "lightblack":
-		return tcell.ColorGray
-	case "brightred", "lightred":
-		return tcell.ColorRed
-	case "brightgreen", "lightgreen":
-		return tcell.ColorLime
-	case "brightyellow", "lightyellow":
-		return tcell.ColorYellow
-	case "brightblue", "lightblue":
-		return tcell.ColorBlue
-	case "brightmagenta", "lightmagenta":
-		return tcell.ColorFuchsia
-	case "brightcyan", "lightcyan":
-		return tcell.ColorAqua
-	case "brightwhite", "lightwhite":
-		return tcell.ColorWhite
-	case "default":
-		return tcell.ColorDefault
-	default:
-		// Check if this is a 256 color
-		if num, err := strconv.Atoi(str); err == nil {
-			return GetColor256(num)
-		}
-		// Probably a truecolor hex value
-		return tcell.GetColor(str)
-	}
-}
-
-// GetColor256 returns the tcell color for a number between 0 and 255
-func GetColor256(color int) tcell.Color {
-	colors := []tcell.Color{tcell.ColorBlack, tcell.ColorMaroon, tcell.ColorGreen,
-		tcell.ColorOlive, tcell.ColorNavy, tcell.ColorPurple,
-		tcell.ColorTeal, tcell.ColorSilver, tcell.ColorGray,
-		tcell.ColorRed, tcell.ColorLime, tcell.ColorYellow,
-		tcell.ColorBlue, tcell.ColorFuchsia, tcell.ColorAqua,
-		tcell.ColorWhite, tcell.Color16, tcell.Color17, tcell.Color18, tcell.Color19, tcell.Color20,
-		tcell.Color21, tcell.Color22, tcell.Color23, tcell.Color24, tcell.Color25, tcell.Color26, tcell.Color27, tcell.Color28,
-		tcell.Color29, tcell.Color30, tcell.Color31, tcell.Color32, tcell.Color33, tcell.Color34, tcell.Color35, tcell.Color36,
-		tcell.Color37, tcell.Color38, tcell.Color39, tcell.Color40, tcell.Color41, tcell.Color42, tcell.Color43, tcell.Color44,
-		tcell.Color45, tcell.Color46, tcell.Color47, tcell.Color48, tcell.Color49, tcell.Color50, tcell.Color51, tcell.Color52,
-		tcell.Color53, tcell.Color54, tcell.Color55, tcell.Color56, tcell.Color57, tcell.Color58, tcell.Color59, tcell.Color60,
-		tcell.Color61, tcell.Color62, tcell.Color63, tcell.Color64, tcell.Color65, tcell.Color66, tcell.Color67, tcell.Color68,
-		tcell.Color69, tcell.Color70, tcell.Color71, tcell.Color72, tcell.Color73, tcell.Color74, tcell.Color75, tcell.Color76,
-		tcell.Color77, tcell.Color78, tcell.Color79, tcell.Color80, tcell.Color81, tcell.Color82, tcell.Color83, tcell.Color84,
-		tcell.Color85, tcell.Color86, tcell.Color87, tcell.Color88, tcell.Color89, tcell.Color90, tcell.Color91, tcell.Color92,
-		tcell.Color93, tcell.Color94, tcell.Color95, tcell.Color96, tcell.Color97, tcell.Color98, tcell.Color99, tcell.Color100,
-		tcell.Color101, tcell.Color102, tcell.Color103, tcell.Color104, tcell.Color105, tcell.Color106, tcell.Color107, tcell.Color108,
-		tcell.Color109, tcell.Color110, tcell.Color111, tcell.Color112, tcell.Color113, tcell.Color114, tcell.Color115, tcell.Color116,
-		tcell.Color117, tcell.Color118, tcell.Color119, tcell.Color120, tcell.Color121, tcell.Color122, tcell.Color123, tcell.Color124,
-		tcell.Color125, tcell.Color126, tcell.Color127, tcell.Color128, tcell.Color129, tcell.Color130, tcell.Color131, tcell.Color132,
-		tcell.Color133, tcell.Color134, tcell.Color135, tcell.Color136, tcell.Color137, tcell.Color138, tcell.Color139, tcell.Color140,
-		tcell.Color141, tcell.Color142, tcell.Color143, tcell.Color144, tcell.Color145, tcell.Color146, tcell.Color147, tcell.Color148,
-		tcell.Color149, tcell.Color150, tcell.Color151, tcell.Color152, tcell.Color153, tcell.Color154, tcell.Color155, tcell.Color156,
-		tcell.Color157, tcell.Color158, tcell.Color159, tcell.Color160, tcell.Color161, tcell.Color162, tcell.Color163, tcell.Color164,
-		tcell.Color165, tcell.Color166, tcell.Color167, tcell.Color168, tcell.Color169, tcell.Color170, tcell.Color171, tcell.Color172,
-		tcell.Color173, tcell.Color174, tcell.Color175, tcell.Color176, tcell.Color177, tcell.Color178, tcell.Color179, tcell.Color180,
-		tcell.Color181, tcell.Color182, tcell.Color183, tcell.Color184, tcell.Color185, tcell.Color186, tcell.Color187, tcell.Color188,
-		tcell.Color189, tcell.Color190, tcell.Color191, tcell.Color192, tcell.Color193, tcell.Color194, tcell.Color195, tcell.Color196,
-		tcell.Color197, tcell.Color198, tcell.Color199, tcell.Color200, tcell.Color201, tcell.Color202, tcell.Color203, tcell.Color204,
-		tcell.Color205, tcell.Color206, tcell.Color207, tcell.Color208, tcell.Color209, tcell.Color210, tcell.Color211, tcell.Color212,
-		tcell.Color213, tcell.Color214, tcell.Color215, tcell.Color216, tcell.Color217, tcell.Color218, tcell.Color219, tcell.Color220,
-		tcell.Color221, tcell.Color222, tcell.Color223, tcell.Color224, tcell.Color225, tcell.Color226, tcell.Color227, tcell.Color228,
-		tcell.Color229, tcell.Color230, tcell.Color231, tcell.Color232, tcell.Color233, tcell.Color234, tcell.Color235, tcell.Color236,
-		tcell.Color237, tcell.Color238, tcell.Color239, tcell.Color240, tcell.Color241, tcell.Color242, tcell.Color243, tcell.Color244,
-		tcell.Color245, tcell.Color246, tcell.Color247, tcell.Color248, tcell.Color249, tcell.Color250, tcell.Color251, tcell.Color252,
-		tcell.Color253, tcell.Color254, tcell.Color255,
-	}
-
-	if color >= 0 && color < len(colors) {
-		return colors[color]
-	}
-
-	return tcell.ColorDefault
-}

cmd/micro/command.go

@@ -1,692 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-	"regexp"
-	"runtime"
-	"strconv"
-	"strings"
-	"unicode/utf8"
-
-	humanize "github.com/dustin/go-humanize"
-	"github.com/zyedidia/micro/cmd/micro/shellwords"
-)
-
-// A Command contains a action (a function to call) as well as information about how to autocomplete the command
-type Command struct {
-	action      func([]string)
-	completions []Completion
-}
-
-// A StrCommand is similar to a command but keeps the name of the action
-type StrCommand struct {
-	action      string
-	completions []Completion
-}
-
-var commands map[string]Command
-
-var commandActions map[string]func([]string)
-
-func init() {
-	commandActions = map[string]func([]string){
-		"Set":        Set,
-		"SetLocal":   SetLocal,
-		"Show":       Show,
-		"ShowKey":    ShowKey,
-		"Run":        Run,
-		"Bind":       Bind,
-		"Quit":       Quit,
-		"Save":       Save,
-		"Replace":    Replace,
-		"ReplaceAll": ReplaceAll,
-		"VSplit":     VSplit,
-		"HSplit":     HSplit,
-		"Tab":        NewTab,
-		"Help":       Help,
-		"Eval":       Eval,
-		"ToggleLog":  ToggleLog,
-		"Plugin":     PluginCmd,
-		"Reload":     Reload,
-		"Cd":         Cd,
-		"Pwd":        Pwd,
-		"Open":       Open,
-		"TabSwitch":  TabSwitch,
-		"Term":       Term,
-		"MemUsage":   MemUsage,
-		"Retab":      Retab,
-		"Raw":        Raw,
-	}
-}
-
-// InitCommands initializes the default commands
-func InitCommands() {
-	commands = make(map[string]Command)
-
-	defaults := DefaultCommands()
-	parseCommands(defaults)
-}
-
-func parseCommands(userCommands map[string]StrCommand) {
-	for k, v := range userCommands {
-		MakeCommand(k, v.action, v.completions...)
-	}
-}
-
-// MakeCommand is a function to easily create new commands
-// This can be called by plugins in Lua so that plugins can define their own commands
-func MakeCommand(name, function string, completions ...Completion) {
-	action := commandActions[function]
-	if _, ok := commandActions[function]; !ok {
-		// If the user seems to be binding a function that doesn't exist
-		// We hope that it's a lua function that exists and bind it to that
-		action = LuaFunctionCommand(function)
-	}
-
-	commands[name] = Command{action, completions}
-}
-
-// DefaultCommands returns a map containing micro's default commands
-func DefaultCommands() map[string]StrCommand {
-	return map[string]StrCommand{
-		"set":        {"Set", []Completion{OptionCompletion, OptionValueCompletion}},
-		"setlocal":   {"SetLocal", []Completion{OptionCompletion, OptionValueCompletion}},
-		"show":       {"Show", []Completion{OptionCompletion, NoCompletion}},
-		"showkey":    {"ShowKey", []Completion{NoCompletion}},
-		"bind":       {"Bind", []Completion{NoCompletion}},
-		"run":        {"Run", []Completion{NoCompletion}},
-		"quit":       {"Quit", []Completion{NoCompletion}},
-		"save":       {"Save", []Completion{NoCompletion}},
-		"replace":    {"Replace", []Completion{NoCompletion}},
-		"replaceall": {"ReplaceAll", []Completion{NoCompletion}},
-		"vsplit":     {"VSplit", []Completion{FileCompletion, NoCompletion}},
-		"hsplit":     {"HSplit", []Completion{FileCompletion, NoCompletion}},
-		"tab":        {"Tab", []Completion{FileCompletion, NoCompletion}},
-		"help":       {"Help", []Completion{HelpCompletion, NoCompletion}},
-		"eval":       {"Eval", []Completion{NoCompletion}},
-		"log":        {"ToggleLog", []Completion{NoCompletion}},
-		"plugin":     {"Plugin", []Completion{PluginCmdCompletion, PluginNameCompletion}},
-		"reload":     {"Reload", []Completion{NoCompletion}},
-		"cd":         {"Cd", []Completion{FileCompletion}},
-		"pwd":        {"Pwd", []Completion{NoCompletion}},
-		"open":       {"Open", []Completion{FileCompletion}},
-		"tabswitch":  {"TabSwitch", []Completion{NoCompletion}},
-		"term":       {"Term", []Completion{NoCompletion}},
-		"memusage":   {"MemUsage", []Completion{NoCompletion}},
-		"retab":      {"Retab", []Completion{NoCompletion}},
-		"raw":        {"Raw", []Completion{NoCompletion}},
-	}
-}
-
-// CommandEditAction returns a bindable function that opens a prompt with
-// the given string and executes the command when the user presses
-// enter
-func CommandEditAction(prompt string) func(*View, bool) bool {
-	return func(v *View, usePlugin bool) bool {
-		input, canceled := messenger.Prompt("> ", prompt, "Command", CommandCompletion)
-		if !canceled {
-			HandleCommand(input)
-		}
-		return false
-	}
-}
-
-// CommandAction returns a bindable function which executes the
-// given command
-func CommandAction(cmd string) func(*View, bool) bool {
-	return func(v *View, usePlugin bool) bool {
-		HandleCommand(cmd)
-		return false
-	}
-}
-
-// PluginCmd installs, removes, updates, lists, or searches for given plugins
-func PluginCmd(args []string) {
-	if len(args) >= 1 {
-		switch args[0] {
-		case "install":
-			installedVersions := GetInstalledVersions(false)
-			for _, plugin := range args[1:] {
-				pp := GetAllPluginPackages().Get(plugin)
-				if pp == nil {
-					messenger.Error("Unknown plugin \"" + plugin + "\"")
-				} else if err := pp.IsInstallable(); err != nil {
-					messenger.Error("Error installing ", plugin, ": ", err)
-				} else {
-					for _, installed := range installedVersions {
-						if pp.Name == installed.pack.Name {
-							if pp.Versions[0].Version.Compare(installed.Version) == 1 {
-								messenger.Error(pp.Name, " is already installed but out-of-date: use 'plugin update ", pp.Name, "' to update")
-							} else {
-								messenger.Error(pp.Name, " is already installed")
-							}
-						}
-					}
-					pp.Install()
-				}
-			}
-		case "remove":
-			removed := ""
-			for _, plugin := range args[1:] {
-				// check if the plugin exists.
-				if _, ok := loadedPlugins[plugin]; ok {
-					UninstallPlugin(plugin)
-					removed += plugin + " "
-					continue
-				}
-			}
-			if !IsSpaces([]byte(removed)) {
-				messenger.Message("Removed ", removed)
-			} else {
-				messenger.Error("The requested plugins do not exist")
-			}
-		case "update":
-			UpdatePlugins(args[1:])
-		case "list":
-			plugins := GetInstalledVersions(false)
-			messenger.AddLog("----------------")
-			messenger.AddLog("The following plugins are currently installed:\n")
-			for _, p := range plugins {
-				messenger.AddLog(fmt.Sprintf("%s (%s)", p.pack.Name, p.Version))
-			}
-			messenger.AddLog("----------------")
-			if len(plugins) > 0 {
-				if CurView().Type != vtLog {
-					ToggleLog([]string{})
-				}
-			}
-		case "search":
-			plugins := SearchPlugin(args[1:])
-			messenger.Message(len(plugins), " plugins found")
-			for _, p := range plugins {
-				messenger.AddLog("----------------")
-				messenger.AddLog(p.String())
-			}
-			messenger.AddLog("----------------")
-			if len(plugins) > 0 {
-				if CurView().Type != vtLog {
-					ToggleLog([]string{})
-				}
-			}
-		case "available":
-			packages := GetAllPluginPackages()
-			messenger.AddLog("Available Plugins:")
-			for _, pkg := range packages {
-				messenger.AddLog(pkg.Name)
-			}
-			if CurView().Type != vtLog {
-				ToggleLog([]string{})
-			}
-		}
-	} else {
-		messenger.Error("Not enough arguments")
-	}
-}
-
-// Retab changes all spaces to tabs or all tabs to spaces
-// depending on the user's settings
-func Retab(args []string) {
-	CurView().Retab(true)
-}
-
-// Raw opens a new raw view which displays the escape sequences micro
-// is receiving in real-time
-func Raw(args []string) {
-	buf := NewBufferFromString("", "Raw events")
-
-	view := NewView(buf)
-	view.Buf.Insert(view.Cursor.Loc, "Warning: Showing raw event escape codes\n")
-	view.Buf.Insert(view.Cursor.Loc, "Use CtrlQ to exit\n")
-	view.Type = vtRaw
-	tab := NewTabFromView(view)
-	tab.SetNum(len(tabs))
-	tabs = append(tabs, tab)
-	curTab = len(tabs) - 1
-	if len(tabs) == 2 {
-		for _, t := range tabs {
-			for _, v := range t.Views {
-				v.ToggleTabbar()
-			}
-		}
-	}
-}
-
-// TabSwitch switches to a given tab either by name or by number
-func TabSwitch(args []string) {
-	if len(args) > 0 {
-		num, err := strconv.Atoi(args[0])
-		if err != nil {
-			// Check for tab with this name
-
-			found := false
-			for _, t := range tabs {
-				v := t.Views[t.CurView]
-				if v.Buf.GetName() == args[0] {
-					curTab = v.TabNum
-					found = true
-				}
-			}
-			if !found {
-				messenger.Error("Could not find tab: ", err)
-			}
-		} else {
-			num--
-			if num >= 0 && num < len(tabs) {
-				curTab = num
-			} else {
-				messenger.Error("Invalid tab index")
-			}
-		}
-	}
-}
-
-// Cd changes the current working directory
-func Cd(args []string) {
-	if len(args) > 0 {
-		path := ReplaceHome(args[0])
-		err := os.Chdir(path)
-		if err != nil {
-			messenger.Error("Error with cd: ", err)
-			return
-		}
-		wd, _ := os.Getwd()
-		for _, tab := range tabs {
-			for _, view := range tab.Views {
-				if len(view.Buf.name) == 0 {
-					continue
-				}
-
-				view.Buf.Path, _ = MakeRelative(view.Buf.AbsPath, wd)
-				if p, _ := filepath.Abs(view.Buf.Path); !strings.Contains(p, wd) {
-					view.Buf.Path = view.Buf.AbsPath
-				}
-			}
-		}
-	}
-}
-
-// MemUsage prints micro's memory usage
-// Alloc shows how many bytes are currently in use
-// Sys shows how many bytes have been requested from the operating system
-// NumGC shows how many times the GC has been run
-// Note that Go commonly reserves more memory from the OS than is currently in-use/required
-// Additionally, even if Go returns memory to the OS, the OS does not always claim it because
-// there may be plenty of memory to spare
-func MemUsage(args []string) {
-	var mem runtime.MemStats
-	runtime.ReadMemStats(&mem)
-
-	messenger.Message(fmt.Sprintf("Alloc: %v, Sys: %v, NumGC: %v", humanize.Bytes(mem.Alloc), humanize.Bytes(mem.Sys), mem.NumGC))
-}
-
-// Pwd prints the current working directory
-func Pwd(args []string) {
-	wd, err := os.Getwd()
-	if err != nil {
-		messenger.Message(err.Error())
-	} else {
-		messenger.Message(wd)
-	}
-}
-
-// Open opens a new buffer with a given filename
-func Open(args []string) {
-	if len(args) > 0 {
-		filename := args[0]
-		// the filename might or might not be quoted, so unquote first then join the strings.
-		args, err := shellwords.Split(filename)
-		if err != nil {
-			messenger.Error("Error parsing args ", err)
-			return
-		}
-		filename = strings.Join(args, " ")
-
-		CurView().Open(filename)
-	} else {
-		messenger.Error("No filename")
-	}
-}
-
-// ToggleLog toggles the log view
-func ToggleLog(args []string) {
-	buffer := messenger.getBuffer()
-	if CurView().Type != vtLog {
-		CurView().HSplit(buffer)
-		CurView().Type = vtLog
-		RedrawAll()
-		buffer.Cursor.Loc = buffer.Start()
-		CurView().Relocate()
-		buffer.Cursor.Loc = buffer.End()
-		CurView().Relocate()
-	} else {
-		CurView().Quit(true)
-	}
-}
-
-// Reload reloads all files (syntax files, colorschemes...)
-func Reload(args []string) {
-	LoadAll()
-}
-
-// Help tries to open the given help page in a horizontal split
-func Help(args []string) {
-	if len(args) < 1 {
-		// Open the default help if the user just typed "> help"
-		CurView().openHelp("help")
-	} else {
-		helpPage := args[0]
-		if FindRuntimeFile(RTHelp, helpPage) != nil {
-			CurView().openHelp(helpPage)
-		} else {
-			messenger.Error("Sorry, no help for ", helpPage)
-		}
-	}
-}
-
-// VSplit opens a vertical split with file given in the first argument
-// If no file is given, it opens an empty buffer in a new split
-func VSplit(args []string) {
-	if len(args) == 0 {
-		CurView().VSplit(NewBufferFromString("", ""))
-	} else {
-		buf, err := NewBufferFromFile(args[0])
-		if err != nil {
-			messenger.Error(err)
-			return
-		}
-		CurView().VSplit(buf)
-	}
-}
-
-// HSplit opens a horizontal split with file given in the first argument
-// If no file is given, it opens an empty buffer in a new split
-func HSplit(args []string) {
-	if len(args) == 0 {
-		CurView().HSplit(NewBufferFromString("", ""))
-	} else {
-		buf, err := NewBufferFromFile(args[0])
-		if err != nil {
-			messenger.Error(err)
-			return
-		}
-		CurView().HSplit(buf)
-	}
-}
-
-// Eval evaluates a lua expression
-func Eval(args []string) {
-	if len(args) >= 1 {
-		err := L.DoString(args[0])
-		if err != nil {
-			messenger.Error(err)
-		}
-	} else {
-		messenger.Error("Not enough arguments")
-	}
-}
-
-// NewTab opens the given file in a new tab
-func NewTab(args []string) {
-	if len(args) == 0 {
-		CurView().AddTab(true)
-	} else {
-		buf, err := NewBufferFromFile(args[0])
-		if err != nil {
-			messenger.Error(err)
-			return
-		}
-
-		tab := NewTabFromView(NewView(buf))
-		tab.SetNum(len(tabs))
-		tabs = append(tabs, tab)
-		curTab = len(tabs) - 1
-		if len(tabs) == 2 {
-			for _, t := range tabs {
-				for _, v := range t.Views {
-					v.ToggleTabbar()
-				}
-			}
-		}
-	}
-}
-
-// Set sets an option
-func Set(args []string) {
-	if len(args) < 2 {
-		messenger.Error("Not enough arguments")
-		return
-	}
-
-	option := args[0]
-	value := args[1]
-
-	SetOptionAndSettings(option, value)
-}
-
-// SetLocal sets an option local to the buffer
-func SetLocal(args []string) {
-	if len(args) < 2 {
-		messenger.Error("Not enough arguments")
-		return
-	}
-
-	option := args[0]
-	value := args[1]
-
-	err := SetLocalOption(option, value, CurView())
-	if err != nil {
-		messenger.Error(err.Error())
-	}
-}
-
-// Show shows the value of the given option
-func Show(args []string) {
-	if len(args) < 1 {
-		messenger.Error("Please provide an option to show")
-		return
-	}
-
-	option := GetOption(args[0])
-
-	if option == nil {
-		messenger.Error(args[0], " is not a valid option")
-		return
-	}
-
-	messenger.Message(option)
-}
-
-// ShowKey displays the action that a key is bound to
-func ShowKey(args []string) {
-	if len(args) < 1 {
-		messenger.Error("Please provide a key to show")
-		return
-	}
-
-	if action, ok := bindingsStr[args[0]]; ok {
-		messenger.Message(action)
-	} else {
-		messenger.Message(args[0], " has no binding")
-	}
-}
-
-// Bind creates a new keybinding
-func Bind(args []string) {
-	if len(args) < 2 {
-		messenger.Error("Not enough arguments")
-		return
-	}
-	BindKey(args[0], args[1])
-}
-
-// Run runs a shell command in the background
-func Run(args []string) {
-	// Run a shell command in the background (openTerm is false)
-	HandleShellCommand(shellwords.Join(args...), false, true)
-}
-
-// Quit closes the main view
-func Quit(args []string) {
-	// Close the main view
-	CurView().Quit(true)
-}
-
-// Save saves the buffer in the main view
-func Save(args []string) {
-	if len(args) == 0 {
-		// Save the main view
-		CurView().Save(true)
-	} else {
-		CurView().Buf.SaveAs(args[0])
-	}
-}
-
-// Replace runs search and replace
-func Replace(args []string) {
-	if len(args) < 2 || len(args) > 4 {
-		// We need to find both a search and replace expression
-		messenger.Error("Invalid replace statement: " + strings.Join(args, " "))
-		return
-	}
-
-	all := false
-	noRegex := false
-
-	if len(args) > 2 {
-		for _, arg := range args[2:] {
-			switch arg {
-			case "-a":
-				all = true
-			case "-l":
-				noRegex = true
-			default:
-				messenger.Error("Invalid flag: " + arg)
-				return
-			}
-		}
-	}
-
-	search := string(args[0])
-
-	if noRegex {
-		search = regexp.QuoteMeta(search)
-	}
-
-	replace := string(args[1])
-	replaceBytes := []byte(replace)
-
-	regex, err := regexp.Compile("(?m)" + search)
-	if err != nil {
-		// There was an error with the user's regex
-		messenger.Error(err.Error())
-		return
-	}
-
-	view := CurView()
-
-	found := 0
-	replaceAll := func() {
-		var deltas []Delta
-		for i := 0; i < view.Buf.LinesNum(); i++ {
-			newText := regex.ReplaceAllFunc(view.Buf.lines[i].data, func(in []byte) []byte {
-				found++
-				return replaceBytes
-			})
-
-			from := Loc{0, i}
-			to := Loc{utf8.RuneCount(view.Buf.lines[i].data), i}
-
-			deltas = append(deltas, Delta{string(newText), from, to})
-		}
-		view.Buf.MultipleReplace(deltas)
-	}
-
-	if all {
-		replaceAll()
-	} else {
-		for {
-			// The 'check' flag was used
-			Search(search, view, true)
-			if !view.Cursor.HasSelection() {
-				break
-			}
-			view.Relocate()
-			RedrawAll()
-			choice, canceled := messenger.LetterPrompt("Perform replacement? (y,n,a)", 'y', 'n', 'a')
-			if canceled {
-				if view.Cursor.HasSelection() {
-					view.Cursor.Loc = view.Cursor.CurSelection[0]
-					view.Cursor.ResetSelection()
-				}
-				messenger.Reset()
-				break
-			} else if choice == 'a' {
-				if view.Cursor.HasSelection() {
-					view.Cursor.Loc = view.Cursor.CurSelection[0]
-					view.Cursor.ResetSelection()
-				}
-				messenger.Reset()
-				replaceAll()
-				break
-			} else if choice == 'y' {
-				view.Cursor.DeleteSelection()
-				view.Buf.Insert(view.Cursor.Loc, replace)
-				view.Cursor.ResetSelection()
-				messenger.Reset()
-				found++
-			}
-			if view.Cursor.HasSelection() {
-				searchStart = view.Cursor.CurSelection[1]
-			} else {
-				searchStart = view.Cursor.Loc
-			}
-		}
-	}
-	view.Cursor.Relocate()
-
-	if found > 1 {
-		messenger.Message("Replaced ", found, " occurrences of ", search)
-	} else if found == 1 {
-		messenger.Message("Replaced ", found, " occurrence of ", search)
-	} else {
-		messenger.Message("Nothing matched ", search)
-	}
-}
-
-// ReplaceAll replaces search term all at once
-func ReplaceAll(args []string) {
-	// aliased to Replace command
-	Replace(append(args, "-a"))
-}
-
-// Term opens a terminal in the current view
-func Term(args []string) {
-	var err error
-	if len(args) == 0 {
-		err = CurView().StartTerminal([]string{os.Getenv("SHELL"), "-i"}, true, false, "")
-	} else {
-		err = CurView().StartTerminal(args, true, false, "")
-	}
-	if err != nil {
-		messenger.Error(err)
-	}
-}
-
-// HandleCommand handles input from the user
-func HandleCommand(input string) {
-	args, err := shellwords.Split(input)
-	if err != nil {
-		messenger.Error("Error parsing args ", err)
-		return
-	}
-
-	inputCmd := args[0]
-
-	if _, ok := commands[inputCmd]; !ok {
-		messenger.Error("Unknown command ", inputCmd)
-	} else {
-		commands[inputCmd].action(args[1:])
-	}
-}

cmd/micro/debug.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/zyedidia/micro/v2/internal/util"
+)
+
+// NullWriter simply sends writes into the void
+type NullWriter struct{}
+
+// Write is empty
+func (NullWriter) Write(data []byte) (n int, err error) {
+	return 0, nil
+}
+
+// InitLog sets up the debug log system for micro if it has been enabled by compile-time variables
+func InitLog() {
+	if util.Debug == "ON" {
+		f, err := os.OpenFile("log.txt", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0666)
+		if err != nil {
+			log.Fatalf("error opening file: %v", err)
+		}
+
+		log.SetOutput(f)
+		log.Println("Micro started")
+	} else {
+		log.SetOutput(NullWriter{})
+	}
+}

cmd/micro/highlighter.go

@@ -1,28 +0,0 @@
-package main
-
-import "github.com/zyedidia/micro/cmd/micro/highlight"
-
-var syntaxFiles []*highlight.File
-
-func LoadSyntaxFiles() {
-	InitColorscheme()
-	for _, f := range ListRuntimeFiles(RTSyntax) {
-		data, err := f.Data()
-		if err != nil {
-			TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
-		} else {
-			LoadSyntaxFile(data, f.Name())
-		}
-	}
-}
-
-func LoadSyntaxFile(text []byte, filename string) {
-	f, err := highlight.ParseFile(text)
-
-	if err != nil {
-		TermMessage("Syntax file error: " + filename + ": " + err.Error())
-		return
-	}
-
-	syntaxFiles = append(syntaxFiles, f)
-}

cmd/micro/initlua.go

@@ -0,0 +1,160 @@
+package main
+
+import (
+	"log"
+
+	lua "github.com/yuin/gopher-lua"
+	luar "layeh.com/gopher-luar"
+
+	"github.com/zyedidia/micro/v2/internal/action"
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/display"
+	ulua "github.com/zyedidia/micro/v2/internal/lua"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/micro/v2/internal/shell"
+	"github.com/zyedidia/micro/v2/internal/util"
+)
+
+func init() {
+	ulua.L = lua.NewState()
+	ulua.L.SetGlobal("import", luar.New(ulua.L, LuaImport))
+}
+
+// LuaImport is meant to be called from lua by a plugin and will import the given micro package
+func LuaImport(pkg string) *lua.LTable {
+	switch pkg {
+	case "micro":
+		return luaImportMicro()
+	case "micro/shell":
+		return luaImportMicroShell()
+	case "micro/buffer":
+		return luaImportMicroBuffer()
+	case "micro/config":
+		return luaImportMicroConfig()
+	case "micro/util":
+		return luaImportMicroUtil()
+	default:
+		return ulua.Import(pkg)
+	}
+}
+
+func luaImportMicro() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "TermMessage", luar.New(ulua.L, screen.TermMessage))
+	ulua.L.SetField(pkg, "TermError", luar.New(ulua.L, screen.TermError))
+	ulua.L.SetField(pkg, "InfoBar", luar.New(ulua.L, action.GetInfoBar))
+	ulua.L.SetField(pkg, "Log", luar.New(ulua.L, log.Println))
+	ulua.L.SetField(pkg, "SetStatusInfoFn", luar.New(ulua.L, display.SetStatusInfoFnLua))
+	ulua.L.SetField(pkg, "CurPane", luar.New(ulua.L, func() action.Pane {
+		return action.MainTab().CurPane()
+	}))
+	ulua.L.SetField(pkg, "CurTab", luar.New(ulua.L, action.MainTab))
+	ulua.L.SetField(pkg, "Tabs", luar.New(ulua.L, func() *action.TabList {
+		return action.Tabs
+	}))
+	ulua.L.SetField(pkg, "Lock", luar.New(ulua.L, &ulua.Lock))
+
+	return pkg
+}
+
+func luaImportMicroConfig() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "MakeCommand", luar.New(ulua.L, action.MakeCommand))
+	ulua.L.SetField(pkg, "FileComplete", luar.New(ulua.L, buffer.FileComplete))
+	ulua.L.SetField(pkg, "HelpComplete", luar.New(ulua.L, action.HelpComplete))
+	ulua.L.SetField(pkg, "OptionComplete", luar.New(ulua.L, action.OptionComplete))
+	ulua.L.SetField(pkg, "OptionValueComplete", luar.New(ulua.L, action.OptionValueComplete))
+	ulua.L.SetField(pkg, "NoComplete", luar.New(ulua.L, nil))
+	ulua.L.SetField(pkg, "TryBindKey", luar.New(ulua.L, action.TryBindKey))
+	ulua.L.SetField(pkg, "Reload", luar.New(ulua.L, action.ReloadConfig))
+	ulua.L.SetField(pkg, "AddRuntimeFileFromMemory", luar.New(ulua.L, config.PluginAddRuntimeFileFromMemory))
+	ulua.L.SetField(pkg, "AddRuntimeFilesFromDirectory", luar.New(ulua.L, config.PluginAddRuntimeFilesFromDirectory))
+	ulua.L.SetField(pkg, "AddRuntimeFile", luar.New(ulua.L, config.PluginAddRuntimeFile))
+	ulua.L.SetField(pkg, "ListRuntimeFiles", luar.New(ulua.L, config.PluginListRuntimeFiles))
+	ulua.L.SetField(pkg, "ReadRuntimeFile", luar.New(ulua.L, config.PluginReadRuntimeFile))
+	ulua.L.SetField(pkg, "NewRTFiletype", luar.New(ulua.L, config.NewRTFiletype))
+	ulua.L.SetField(pkg, "RTColorscheme", luar.New(ulua.L, config.RTColorscheme))
+	ulua.L.SetField(pkg, "RTSyntax", luar.New(ulua.L, config.RTSyntax))
+	ulua.L.SetField(pkg, "RTHelp", luar.New(ulua.L, config.RTHelp))
+	ulua.L.SetField(pkg, "RTPlugin", luar.New(ulua.L, config.RTPlugin))
+	ulua.L.SetField(pkg, "RegisterCommonOption", luar.New(ulua.L, config.RegisterCommonOptionPlug))
+	ulua.L.SetField(pkg, "RegisterGlobalOption", luar.New(ulua.L, config.RegisterGlobalOptionPlug))
+	ulua.L.SetField(pkg, "GetGlobalOption", luar.New(ulua.L, config.GetGlobalOption))
+	ulua.L.SetField(pkg, "SetGlobalOption", luar.New(ulua.L, action.SetGlobalOption))
+	ulua.L.SetField(pkg, "SetGlobalOptionNative", luar.New(ulua.L, action.SetGlobalOptionNative))
+	ulua.L.SetField(pkg, "ConfigDir", luar.New(ulua.L, config.ConfigDir))
+
+	return pkg
+}
+
+func luaImportMicroShell() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "ExecCommand", luar.New(ulua.L, shell.ExecCommand))
+	ulua.L.SetField(pkg, "RunCommand", luar.New(ulua.L, shell.RunCommand))
+	ulua.L.SetField(pkg, "RunBackgroundShell", luar.New(ulua.L, shell.RunBackgroundShell))
+	ulua.L.SetField(pkg, "RunInteractiveShell", luar.New(ulua.L, shell.RunInteractiveShell))
+	ulua.L.SetField(pkg, "JobStart", luar.New(ulua.L, shell.JobStart))
+	ulua.L.SetField(pkg, "JobSpawn", luar.New(ulua.L, shell.JobSpawn))
+	ulua.L.SetField(pkg, "JobStop", luar.New(ulua.L, shell.JobStop))
+	ulua.L.SetField(pkg, "JobSend", luar.New(ulua.L, shell.JobSend))
+	ulua.L.SetField(pkg, "RunTermEmulator", luar.New(ulua.L, action.RunTermEmulator))
+	ulua.L.SetField(pkg, "TermEmuSupported", luar.New(ulua.L, action.TermEmuSupported))
+
+	return pkg
+}
+
+func luaImportMicroBuffer() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "NewMessage", luar.New(ulua.L, buffer.NewMessage))
+	ulua.L.SetField(pkg, "NewMessageAtLine", luar.New(ulua.L, buffer.NewMessageAtLine))
+	ulua.L.SetField(pkg, "MTInfo", luar.New(ulua.L, buffer.MTInfo))
+	ulua.L.SetField(pkg, "MTWarning", luar.New(ulua.L, buffer.MTWarning))
+	ulua.L.SetField(pkg, "MTError", luar.New(ulua.L, buffer.MTError))
+	ulua.L.SetField(pkg, "Loc", luar.New(ulua.L, func(x, y int) buffer.Loc {
+		return buffer.Loc{x, y}
+	}))
+	ulua.L.SetField(pkg, "SLoc", luar.New(ulua.L, func(line, row int) display.SLoc {
+		return display.SLoc{line, row}
+	}))
+	ulua.L.SetField(pkg, "BTDefault", luar.New(ulua.L, buffer.BTDefault.Kind))
+	ulua.L.SetField(pkg, "BTHelp", luar.New(ulua.L, buffer.BTHelp.Kind))
+	ulua.L.SetField(pkg, "BTLog", luar.New(ulua.L, buffer.BTLog.Kind))
+	ulua.L.SetField(pkg, "BTScratch", luar.New(ulua.L, buffer.BTScratch.Kind))
+	ulua.L.SetField(pkg, "BTRaw", luar.New(ulua.L, buffer.BTRaw.Kind))
+	ulua.L.SetField(pkg, "BTInfo", luar.New(ulua.L, buffer.BTInfo.Kind))
+	ulua.L.SetField(pkg, "NewBuffer", luar.New(ulua.L, func(text, path string) *buffer.Buffer {
+		return buffer.NewBufferFromString(text, path, buffer.BTDefault)
+	}))
+	ulua.L.SetField(pkg, "NewBufferFromFile", luar.New(ulua.L, func(path string) (*buffer.Buffer, error) {
+		return buffer.NewBufferFromFile(path, buffer.BTDefault)
+	}))
+	ulua.L.SetField(pkg, "ByteOffset", luar.New(ulua.L, buffer.ByteOffset))
+	ulua.L.SetField(pkg, "Log", luar.New(ulua.L, buffer.WriteLog))
+	ulua.L.SetField(pkg, "LogBuf", luar.New(ulua.L, buffer.GetLogBuf))
+
+	return pkg
+}
+
+func luaImportMicroUtil() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "RuneAt", luar.New(ulua.L, util.LuaRuneAt))
+	ulua.L.SetField(pkg, "GetLeadingWhitespace", luar.New(ulua.L, util.LuaGetLeadingWhitespace))
+	ulua.L.SetField(pkg, "IsWordChar", luar.New(ulua.L, util.LuaIsWordChar))
+	ulua.L.SetField(pkg, "String", luar.New(ulua.L, util.String))
+	ulua.L.SetField(pkg, "Unzip", luar.New(ulua.L, util.Unzip))
+	ulua.L.SetField(pkg, "Version", luar.New(ulua.L, util.Version))
+	ulua.L.SetField(pkg, "SemVersion", luar.New(ulua.L, util.SemVersion))
+	ulua.L.SetField(pkg, "HttpRequest", luar.New(ulua.L, util.HttpRequest))
+	ulua.L.SetField(pkg, "CharacterCountInString", luar.New(ulua.L, util.CharacterCountInString))
+	ulua.L.SetField(pkg, "RuneStr", luar.New(ulua.L, func(r rune) string {
+		return string(r)
+	}))
+
+	return pkg
+}

cmd/micro/keymenu.go

@@ -1,20 +0,0 @@
-package main
-
-// DisplayKeyMenu displays the nano-style key menu at the bottom of the screen
-func DisplayKeyMenu() {
-	w, h := screen.Size()
-
-	bot := h - 3
-
-	display := []string{"^Q Quit, ^S Save, ^O Open, ^G Help, ^E Command Bar, ^K Cut Line", "^F Find, ^Z Undo, ^Y Redo, ^A Select All, ^D Duplicate Line, ^T New Tab"}
-
-	for y := 0; y < len(display); y++ {
-		for x := 0; x < w; x++ {
-			if x < len(display[y]) {
-				screen.SetContent(x, bot+y, rune(display[y][x]), nil, defStyle)
-			} else {
-				screen.SetContent(x, bot+y, ' ', nil, defStyle)
-			}
-		}
-	}
-}

cmd/micro/lineArray.go

@@ -1,267 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"io"
-	"unicode/utf8"
-
-	"github.com/zyedidia/micro/cmd/micro/highlight"
-)
-
-func runeToByteIndex(n int, txt []byte) int {
-	if n == 0 {
-		return 0
-	}
-
-	count := 0
-	i := 0
-	for len(txt) > 0 {
-		_, size := utf8.DecodeRune(txt)
-
-		txt = txt[size:]
-		count += size
-		i++
-
-		if i == n {
-			break
-		}
-	}
-	return count
-}
-
-// A Line contains the data in bytes as well as a highlight state, match
-// and a flag for whether the highlighting needs to be updated
-type Line struct {
-	data []byte
-
-	state       highlight.State
-	match       highlight.LineMatch
-	rehighlight bool
-}
-
-// A LineArray simply stores and array of lines and makes it easy to insert
-// and delete in it
-type LineArray struct {
-	lines []Line
-}
-
-// Append efficiently appends lines together
-// It allocates an additional 10000 lines if the original estimate
-// is incorrect
-func Append(slice []Line, data ...Line) []Line {
-	l := len(slice)
-	if l+len(data) > cap(slice) { // reallocate
-		newSlice := make([]Line, (l+len(data))+10000)
-		// The copy function is predeclared and works for any slice type.
-		copy(newSlice, slice)
-		slice = newSlice
-	}
-	slice = slice[0 : l+len(data)]
-	for i, c := range data {
-		slice[l+i] = c
-	}
-	return slice
-}
-
-// NewLineArray returns a new line array from an array of bytes
-func NewLineArray(size int64, reader io.Reader) *LineArray {
-	la := new(LineArray)
-
-	la.lines = make([]Line, 0, 1000)
-
-	br := bufio.NewReader(reader)
-	var loaded int
-
-	n := 0
-	for {
-		data, err := br.ReadBytes('\n')
-		if len(data) > 1 && data[len(data)-2] == '\r' {
-			data = append(data[:len(data)-2], '\n')
-			if fileformat == 0 {
-				fileformat = 2
-			}
-		} else if len(data) > 0 {
-			if fileformat == 0 {
-				fileformat = 1
-			}
-		}
-
-		if n >= 1000 && loaded >= 0 {
-			totalLinesNum := int(float64(size) * (float64(n) / float64(loaded)))
-			newSlice := make([]Line, len(la.lines), totalLinesNum+10000)
-			copy(newSlice, la.lines)
-			la.lines = newSlice
-			loaded = -1
-		}
-
-		if loaded >= 0 {
-			loaded += len(data)
-		}
-
-		if err != nil {
-			if err == io.EOF {
-				la.lines = Append(la.lines, Line{data[:], nil, nil, false})
-				// la.lines = Append(la.lines, Line{data[:len(data)]})
-			}
-			// Last line was read
-			break
-		} else {
-			// la.lines = Append(la.lines, Line{data[:len(data)-1]})
-			la.lines = Append(la.lines, Line{data[:len(data)-1], nil, nil, false})
-		}
-		n++
-	}
-
-	return la
-}
-
-// Returns the String representation of the LineArray
-func (la *LineArray) String() string {
-	str := ""
-	for i, l := range la.lines {
-		str += string(l.data)
-		if i != len(la.lines)-1 {
-			str += "\n"
-		}
-	}
-	return str
-}
-
-// SaveString returns the string that should be written to disk when
-// the line array is saved
-// It is the same as string but uses crlf or lf line endings depending
-func (la *LineArray) SaveString(useCrlf bool) string {
-	str := ""
-	for i, l := range la.lines {
-		str += string(l.data)
-		if i != len(la.lines)-1 {
-			if useCrlf {
-				str += "\r"
-			}
-			str += "\n"
-		}
-	}
-	return str
-}
-
-// NewlineBelow adds a newline below the given line number
-func (la *LineArray) NewlineBelow(y int) {
-	la.lines = append(la.lines, Line{[]byte{' '}, nil, nil, false})
-	copy(la.lines[y+2:], la.lines[y+1:])
-	la.lines[y+1] = Line{[]byte{}, la.lines[y].state, nil, false}
-}
-
-// inserts a byte array at a given location
-func (la *LineArray) insert(pos Loc, value []byte) {
-	x, y := runeToByteIndex(pos.X, la.lines[pos.Y].data), pos.Y
-	// x, y := pos.x, pos.y
-	for i := 0; i < len(value); i++ {
-		if value[i] == '\n' {
-			la.Split(Loc{x, y})
-			x = 0
-			y++
-			continue
-		}
-		la.insertByte(Loc{x, y}, value[i])
-		x++
-	}
-}
-
-// inserts a byte at a given location
-func (la *LineArray) insertByte(pos Loc, value byte) {
-	la.lines[pos.Y].data = append(la.lines[pos.Y].data, 0)
-	copy(la.lines[pos.Y].data[pos.X+1:], la.lines[pos.Y].data[pos.X:])
-	la.lines[pos.Y].data[pos.X] = value
-}
-
-// JoinLines joins the two lines a and b
-func (la *LineArray) JoinLines(a, b int) {
-	la.insert(Loc{len(la.lines[a].data), a}, la.lines[b].data)
-	la.DeleteLine(b)
-}
-
-// Split splits a line at a given position
-func (la *LineArray) Split(pos Loc) {
-	la.NewlineBelow(pos.Y)
-	la.insert(Loc{0, pos.Y + 1}, la.lines[pos.Y].data[pos.X:])
-	la.lines[pos.Y+1].state = la.lines[pos.Y].state
-	la.lines[pos.Y].state = nil
-	la.lines[pos.Y].match = nil
-	la.lines[pos.Y+1].match = nil
-	la.lines[pos.Y].rehighlight = true
-	la.DeleteToEnd(Loc{pos.X, pos.Y})
-}
-
-// removes from start to end
-func (la *LineArray) remove(start, end Loc) string {
-	sub := la.Substr(start, end)
-	startX := runeToByteIndex(start.X, la.lines[start.Y].data)
-	endX := runeToByteIndex(end.X, la.lines[end.Y].data)
-	if start.Y == end.Y {
-		la.lines[start.Y].data = append(la.lines[start.Y].data[:startX], la.lines[start.Y].data[endX:]...)
-	} else {
-		for i := start.Y + 1; i <= end.Y-1; i++ {
-			la.DeleteLine(start.Y + 1)
-		}
-		la.DeleteToEnd(Loc{startX, start.Y})
-		la.DeleteFromStart(Loc{endX - 1, start.Y + 1})
-		la.JoinLines(start.Y, start.Y+1)
-	}
-	return sub
-}
-
-// DeleteToEnd deletes from the end of a line to the position
-func (la *LineArray) DeleteToEnd(pos Loc) {
-	la.lines[pos.Y].data = la.lines[pos.Y].data[:pos.X]
-}
-
-// DeleteFromStart deletes from the start of a line to the position
-func (la *LineArray) DeleteFromStart(pos Loc) {
-	la.lines[pos.Y].data = la.lines[pos.Y].data[pos.X+1:]
-}
-
-// DeleteLine deletes the line number
-func (la *LineArray) DeleteLine(y int) {
-	la.lines = la.lines[:y+copy(la.lines[y:], la.lines[y+1:])]
-}
-
-// DeleteByte deletes the byte at a position
-func (la *LineArray) DeleteByte(pos Loc) {
-	la.lines[pos.Y].data = la.lines[pos.Y].data[:pos.X+copy(la.lines[pos.Y].data[pos.X:], la.lines[pos.Y].data[pos.X+1:])]
-}
-
-// Substr returns the string representation between two locations
-func (la *LineArray) Substr(start, end Loc) string {
-	startX := runeToByteIndex(start.X, la.lines[start.Y].data)
-	endX := runeToByteIndex(end.X, la.lines[end.Y].data)
-	if start.Y == end.Y {
-		return string(la.lines[start.Y].data[startX:endX])
-	}
-	var str string
-	str += string(la.lines[start.Y].data[startX:]) + "\n"
-	for i := start.Y + 1; i <= end.Y-1; i++ {
-		str += string(la.lines[i].data) + "\n"
-	}
-	str += string(la.lines[end.Y].data[:endX])
-	return str
-}
-
-// State gets the highlight state for the given line number
-func (la *LineArray) State(lineN int) highlight.State {
-	return la.lines[lineN].state
-}
-
-// SetState sets the highlight state at the given line number
-func (la *LineArray) SetState(lineN int, s highlight.State) {
-	la.lines[lineN].state = s
-}
-
-// SetMatch sets the match at the given line number
-func (la *LineArray) SetMatch(lineN int, m highlight.LineMatch) {
-	la.lines[lineN].match = m
-}
-
-// Match retrieves the match for the given line number
-func (la *LineArray) Match(lineN int) highlight.LineMatch {
-	return la.lines[lineN].match
-}

cmd/micro/messenger.go

@@ -1,669 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"encoding/gob"
-	"fmt"
-	"os"
-	"strconv"
-
-	"github.com/mattn/go-runewidth"
-	"github.com/zyedidia/clipboard"
-	"github.com/zyedidia/micro/cmd/micro/shellwords"
-	"github.com/zyedidia/tcell"
-)
-
-// TermMessage sends a message to the user in the terminal. This usually occurs before
-// micro has been fully initialized -- ie if there is an error in the syntax highlighting
-// regular expressions
-// The function must be called when the screen is not initialized
-// This will write the message, and wait for the user
-// to press and key to continue
-func TermMessage(msg ...interface{}) {
-	screenWasNil := screen == nil
-	if !screenWasNil {
-		screen.Fini()
-		screen = nil
-	}
-
-	fmt.Println(msg...)
-	fmt.Print("\nPress enter to continue")
-
-	reader := bufio.NewReader(os.Stdin)
-	reader.ReadString('\n')
-
-	if !screenWasNil {
-		InitScreen()
-	}
-}
-
-// TermError sends an error to the user in the terminal. Like TermMessage except formatted
-// as an error
-func TermError(filename string, lineNum int, err string) {
-	TermMessage(filename + ", " + strconv.Itoa(lineNum) + ": " + err)
-}
-
-// Messenger is an object that makes it easy to send messages to the user
-// and get input from the user
-type Messenger struct {
-	log *Buffer
-	// Are we currently prompting the user?
-	hasPrompt bool
-	// Is there a message to print
-	hasMessage bool
-
-	// Message to print
-	message string
-	// The user's response to a prompt
-	response string
-	// style to use when drawing the message
-	style tcell.Style
-
-	// We have to keep track of the cursor for prompting
-	cursorx int
-
-	// This map stores the history for all the different kinds of uses Prompt has
-	// It's a map of history type -> history array
-	history    map[string][]string
-	historyNum int
-
-	// Is the current message a message from the gutter
-	gutterMessage bool
-}
-
-// AddLog sends a message to the log view
-func (m *Messenger) AddLog(msg ...interface{}) {
-	logMessage := fmt.Sprint(msg...)
-	buffer := m.getBuffer()
-	buffer.insert(buffer.End(), []byte(logMessage+"\n"))
-	buffer.Cursor.Loc = buffer.End()
-	buffer.Cursor.Relocate()
-}
-
-func (m *Messenger) getBuffer() *Buffer {
-	if m.log == nil {
-		m.log = NewBufferFromString("", "")
-		m.log.name = "Log"
-	}
-	return m.log
-}
-
-// Message sends a message to the user
-func (m *Messenger) Message(msg ...interface{}) {
-	displayMessage := fmt.Sprint(msg...)
-	// only display a new message if there isn't an active prompt
-	// this is to prevent overwriting an existing prompt to the user
-	if m.hasPrompt == false {
-		// if there is no active prompt then style and display the message as normal
-		m.message = displayMessage
-
-		m.style = defStyle
-
-		if _, ok := colorscheme["message"]; ok {
-			m.style = colorscheme["message"]
-		}
-
-		m.hasMessage = true
-	}
-	// add the message to the log regardless of active prompts
-	m.AddLog(displayMessage)
-}
-
-// Error sends an error message to the user
-func (m *Messenger) Error(msg ...interface{}) {
-	buf := new(bytes.Buffer)
-	fmt.Fprint(buf, msg...)
-
-	// only display a new message if there isn't an active prompt
-	// this is to prevent overwriting an existing prompt to the user
-	if m.hasPrompt == false {
-		// if there is no active prompt then style and display the message as normal
-		m.message = buf.String()
-		m.style = defStyle.
-			Foreground(tcell.ColorBlack).
-			Background(tcell.ColorMaroon)
-
-		if _, ok := colorscheme["error-message"]; ok {
-			m.style = colorscheme["error-message"]
-		}
-		m.hasMessage = true
-	}
-	// add the message to the log regardless of active prompts
-	m.AddLog(buf.String())
-}
-
-func (m *Messenger) PromptText(msg ...interface{}) {
-	displayMessage := fmt.Sprint(msg...)
-	// if there is no active prompt then style and display the message as normal
-	m.message = displayMessage
-
-	m.style = defStyle
-
-	if _, ok := colorscheme["message"]; ok {
-		m.style = colorscheme["message"]
-	}
-
-	m.hasMessage = true
-	// add the message to the log regardless of active prompts
-	m.AddLog(displayMessage)
-}
-
-// YesNoPrompt asks the user a yes or no question (waits for y or n) and returns the result
-func (m *Messenger) YesNoPrompt(prompt string) (bool, bool) {
-	m.hasPrompt = true
-	m.PromptText(prompt)
-
-	_, h := screen.Size()
-	for {
-		m.Clear()
-		m.Display()
-		screen.ShowCursor(Count(m.message), h-1)
-		screen.Show()
-		event := <-events
-
-		switch e := event.(type) {
-		case *tcell.EventKey:
-			switch e.Key() {
-			case tcell.KeyRune:
-				if e.Rune() == 'y' || e.Rune() == 'Y' {
-					m.AddLog("\t--> y")
-					m.hasPrompt = false
-					return true, false
-				} else if e.Rune() == 'n' || e.Rune() == 'N' {
-					m.AddLog("\t--> n")
-					m.hasPrompt = false
-					return false, false
-				}
-			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
-				m.AddLog("\t--> (cancel)")
-				m.Clear()
-				m.Reset()
-				m.hasPrompt = false
-				return false, true
-			}
-		}
-	}
-}
-
-// LetterPrompt gives the user a prompt and waits for a one letter response
-func (m *Messenger) LetterPrompt(prompt string, responses ...rune) (rune, bool) {
-	m.hasPrompt = true
-	m.PromptText(prompt)
-
-	_, h := screen.Size()
-	for {
-		m.Clear()
-		m.Display()
-		screen.ShowCursor(Count(m.message), h-1)
-		screen.Show()
-		event := <-events
-
-		switch e := event.(type) {
-		case *tcell.EventKey:
-			switch e.Key() {
-			case tcell.KeyRune:
-				for _, r := range responses {
-					if e.Rune() == r {
-						m.AddLog("\t--> " + string(r))
-						m.Clear()
-						m.Reset()
-						m.hasPrompt = false
-						return r, false
-					}
-				}
-			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
-				m.AddLog("\t--> (cancel)")
-				m.Clear()
-				m.Reset()
-				m.hasPrompt = false
-				return ' ', true
-			}
-		}
-	}
-}
-
-// Completion represents a type of completion
-type Completion int
-
-const (
-	NoCompletion Completion = iota
-	FileCompletion
-	CommandCompletion
-	HelpCompletion
-	OptionCompletion
-	PluginCmdCompletion
-	PluginNameCompletion
-	OptionValueCompletion
-)
-
-// Prompt sends the user a message and waits for a response to be typed in
-// This function blocks the main loop while waiting for input
-func (m *Messenger) Prompt(prompt, placeholder, historyType string, completionTypes ...Completion) (string, bool) {
-	m.hasPrompt = true
-	m.PromptText(prompt)
-	if _, ok := m.history[historyType]; !ok {
-		m.history[historyType] = []string{""}
-	} else {
-		m.history[historyType] = append(m.history[historyType], "")
-	}
-	m.historyNum = len(m.history[historyType]) - 1
-
-	response, canceled := placeholder, true
-	m.response = response
-	m.cursorx = Count(placeholder)
-
-	RedrawAll()
-	for m.hasPrompt {
-		var suggestions []string
-		m.Clear()
-
-		event := <-events
-
-		switch e := event.(type) {
-		case *tcell.EventResize:
-			for _, t := range tabs {
-				t.Resize()
-			}
-			RedrawAll()
-		case *tcell.EventKey:
-			switch e.Key() {
-			case tcell.KeyCtrlQ, tcell.KeyCtrlC, tcell.KeyEscape:
-				// Cancel
-				m.AddLog("\t--> (cancel)")
-				m.hasPrompt = false
-			case tcell.KeyEnter:
-				// User is done entering their response
-				m.AddLog("\t--> " + m.response)
-				m.hasPrompt = false
-				response, canceled = m.response, false
-				m.history[historyType][len(m.history[historyType])-1] = response
-			case tcell.KeyTab:
-				args, err := shellwords.Split(m.response)
-				if err != nil {
-					break
-				}
-				currentArg := ""
-				currentArgNum := 0
-				if len(args) > 0 {
-					currentArgNum = len(args) - 1
-					currentArg = args[currentArgNum]
-				}
-				var completionType Completion
-
-				if completionTypes[0] == CommandCompletion && currentArgNum > 0 {
-					if command, ok := commands[args[0]]; ok {
-						completionTypes = append([]Completion{CommandCompletion}, command.completions...)
-					}
-				}
-
-				if currentArgNum >= len(completionTypes) {
-					completionType = completionTypes[len(completionTypes)-1]
-				} else {
-					completionType = completionTypes[currentArgNum]
-				}
-
-				var chosen string
-				if completionType == FileCompletion {
-					chosen, suggestions = FileComplete(currentArg)
-				} else if completionType == CommandCompletion {
-					chosen, suggestions = CommandComplete(currentArg)
-				} else if completionType == HelpCompletion {
-					chosen, suggestions = HelpComplete(currentArg)
-				} else if completionType == OptionCompletion {
-					chosen, suggestions = OptionComplete(currentArg)
-				} else if completionType == OptionValueCompletion {
-					if currentArgNum-1 > 0 {
-						chosen, suggestions = OptionValueComplete(args[currentArgNum-1], currentArg)
-					}
-				} else if completionType == PluginCmdCompletion {
-					chosen, suggestions = PluginCmdComplete(currentArg)
-				} else if completionType == PluginNameCompletion {
-					chosen, suggestions = PluginNameComplete(currentArg)
-				} else if completionType < NoCompletion {
-					chosen, suggestions = PluginComplete(completionType, currentArg)
-				}
-
-				if len(suggestions) > 1 {
-					chosen = chosen + CommonSubstring(suggestions...)
-				}
-
-				if len(suggestions) != 0 && chosen != "" {
-					m.response = shellwords.Join(append(args[:len(args)-1], chosen)...)
-					m.cursorx = Count(m.response)
-				}
-			}
-		}
-
-		m.HandleEvent(event, m.history[historyType])
-
-		m.Clear()
-		for _, v := range tabs[curTab].Views {
-			v.Display()
-		}
-		DisplayTabs()
-		m.Display()
-		if len(suggestions) > 1 {
-			m.DisplaySuggestions(suggestions)
-		}
-		screen.Show()
-	}
-
-	m.Clear()
-	m.Reset()
-	return response, canceled
-}
-
-// UpHistory fetches the previous item in the history
-func (m *Messenger) UpHistory(history []string) {
-	if m.historyNum > 0 {
-		m.historyNum--
-		m.response = history[m.historyNum]
-		m.cursorx = Count(m.response)
-	}
-}
-
-// DownHistory fetches the next item in the history
-func (m *Messenger) DownHistory(history []string) {
-	if m.historyNum < len(history)-1 {
-		m.historyNum++
-		m.response = history[m.historyNum]
-		m.cursorx = Count(m.response)
-	}
-}
-
-// CursorLeft moves the cursor one character left
-func (m *Messenger) CursorLeft() {
-	if m.cursorx > 0 {
-		m.cursorx--
-	}
-}
-
-// CursorRight moves the cursor one character right
-func (m *Messenger) CursorRight() {
-	if m.cursorx < Count(m.response) {
-		m.cursorx++
-	}
-}
-
-// Start moves the cursor to the start of the line
-func (m *Messenger) Start() {
-	m.cursorx = 0
-}
-
-// End moves the cursor to the end of the line
-func (m *Messenger) End() {
-	m.cursorx = Count(m.response)
-}
-
-// Backspace deletes one character
-func (m *Messenger) Backspace() {
-	if m.cursorx > 0 {
-		m.response = string([]rune(m.response)[:m.cursorx-1]) + string([]rune(m.response)[m.cursorx:])
-		m.cursorx--
-	}
-}
-
-// Paste pastes the clipboard
-func (m *Messenger) Paste() {
-	clip, _ := clipboard.ReadAll("clipboard")
-	m.response = Insert(m.response, m.cursorx, clip)
-	m.cursorx += Count(clip)
-}
-
-// WordLeft moves the cursor one word to the left
-func (m *Messenger) WordLeft() {
-	response := []rune(m.response)
-	m.CursorLeft()
-	if m.cursorx <= 0 {
-		return
-	}
-	for IsWhitespace(response[m.cursorx]) {
-		if m.cursorx <= 0 {
-			return
-		}
-		m.CursorLeft()
-	}
-	m.CursorLeft()
-	for IsWordChar(string(response[m.cursorx])) {
-		if m.cursorx <= 0 {
-			return
-		}
-		m.CursorLeft()
-	}
-	m.CursorRight()
-}
-
-// WordRight moves the cursor one word to the right
-func (m *Messenger) WordRight() {
-	response := []rune(m.response)
-	if m.cursorx >= len(response) {
-		return
-	}
-	for IsWhitespace(response[m.cursorx]) {
-		m.CursorRight()
-		if m.cursorx >= len(response) {
-			m.CursorRight()
-			return
-		}
-	}
-	m.CursorRight()
-	if m.cursorx >= len(response) {
-		return
-	}
-	for IsWordChar(string(response[m.cursorx])) {
-		m.CursorRight()
-		if m.cursorx >= len(response) {
-			return
-		}
-	}
-}
-
-// DeleteWordLeft deletes one word to the left
-func (m *Messenger) DeleteWordLeft() {
-	m.WordLeft()
-	m.response = string([]rune(m.response)[:m.cursorx])
-}
-
-// HandleEvent handles an event for the prompter
-func (m *Messenger) HandleEvent(event tcell.Event, history []string) {
-	switch e := event.(type) {
-	case *tcell.EventKey:
-		switch e.Key() {
-		case tcell.KeyCtrlA:
-			m.Start()
-		case tcell.KeyCtrlE:
-			m.End()
-		case tcell.KeyUp:
-			m.UpHistory(history)
-		case tcell.KeyDown:
-			m.DownHistory(history)
-		case tcell.KeyLeft:
-			if e.Modifiers() == tcell.ModCtrl {
-				m.Start()
-			} else if e.Modifiers() == tcell.ModAlt || e.Modifiers() == tcell.ModMeta {
-				m.WordLeft()
-			} else {
-				m.CursorLeft()
-			}
-		case tcell.KeyRight:
-			if e.Modifiers() == tcell.ModCtrl {
-				m.End()
-			} else if e.Modifiers() == tcell.ModAlt || e.Modifiers() == tcell.ModMeta {
-				m.WordRight()
-			} else {
-				m.CursorRight()
-			}
-		case tcell.KeyBackspace2, tcell.KeyBackspace:
-			if e.Modifiers() == tcell.ModCtrl || e.Modifiers() == tcell.ModAlt || e.Modifiers() == tcell.ModMeta {
-				m.DeleteWordLeft()
-			} else {
-				m.Backspace()
-			}
-		case tcell.KeyCtrlW:
-			m.DeleteWordLeft()
-		case tcell.KeyCtrlV:
-			m.Paste()
-		case tcell.KeyCtrlF:
-			m.WordRight()
-		case tcell.KeyCtrlB:
-			m.WordLeft()
-		case tcell.KeyRune:
-			m.response = Insert(m.response, m.cursorx, string(e.Rune()))
-			m.cursorx++
-		}
-		history[m.historyNum] = m.response
-
-	case *tcell.EventPaste:
-		clip := e.Text()
-		m.response = Insert(m.response, m.cursorx, clip)
-		m.cursorx += Count(clip)
-	case *tcell.EventMouse:
-		x, y := e.Position()
-		x -= Count(m.message)
-		button := e.Buttons()
-		_, screenH := screen.Size()
-
-		if y == screenH-1 {
-			switch button {
-			case tcell.Button1:
-				m.cursorx = x
-				if m.cursorx < 0 {
-					m.cursorx = 0
-				} else if m.cursorx > Count(m.response) {
-					m.cursorx = Count(m.response)
-				}
-			}
-		}
-	}
-}
-
-// Reset resets the messenger's cursor, message and response
-func (m *Messenger) Reset() {
-	m.cursorx = 0
-	m.message = ""
-	m.response = ""
-}
-
-// Clear clears the line at the bottom of the editor
-func (m *Messenger) Clear() {
-	w, h := screen.Size()
-	for x := 0; x < w; x++ {
-		screen.SetContent(x, h-1, ' ', nil, defStyle)
-	}
-}
-
-func (m *Messenger) DisplaySuggestions(suggestions []string) {
-	w, screenH := screen.Size()
-
-	y := screenH - 2
-
-	statusLineStyle := defStyle.Reverse(true)
-	if style, ok := colorscheme["statusline"]; ok {
-		statusLineStyle = style
-	}
-
-	for x := 0; x < w; x++ {
-		screen.SetContent(x, y, ' ', nil, statusLineStyle)
-	}
-
-	x := 0
-	for _, suggestion := range suggestions {
-		for _, c := range suggestion {
-			screen.SetContent(x, y, c, nil, statusLineStyle)
-			x++
-		}
-		screen.SetContent(x, y, ' ', nil, statusLineStyle)
-		x++
-	}
-}
-
-// Display displays messages or prompts
-func (m *Messenger) Display() {
-	_, h := screen.Size()
-	if m.hasMessage {
-		if m.hasPrompt || globalSettings["infobar"].(bool) {
-			runes := []rune(m.message + m.response)
-			posx := 0
-			for x := 0; x < len(runes); x++ {
-				screen.SetContent(posx, h-1, runes[x], nil, m.style)
-				posx += runewidth.RuneWidth(runes[x])
-			}
-		}
-	}
-
-	if m.hasPrompt {
-		screen.ShowCursor(Count(m.message)+m.cursorx, h-1)
-		screen.Show()
-	}
-}
-
-// LoadHistory attempts to load user history from configDir/buffers/history
-// into the history map
-// The savehistory option must be on
-func (m *Messenger) LoadHistory() {
-	if GetGlobalOption("savehistory").(bool) {
-		file, err := os.Open(configDir + "/buffers/history")
-		defer file.Close()
-		var decodedMap map[string][]string
-		if err == nil {
-			decoder := gob.NewDecoder(file)
-			err = decoder.Decode(&decodedMap)
-
-			if err != nil {
-				m.Error("Error loading history:", err)
-				return
-			}
-		}
-
-		if decodedMap != nil {
-			m.history = decodedMap
-		} else {
-			m.history = make(map[string][]string)
-		}
-	} else {
-		m.history = make(map[string][]string)
-	}
-}
-
-// SaveHistory saves the user's command history to configDir/buffers/history
-// only if the savehistory option is on
-func (m *Messenger) SaveHistory() {
-	if GetGlobalOption("savehistory").(bool) {
-		// Don't save history past 100
-		for k, v := range m.history {
-			if len(v) > 100 {
-				m.history[k] = v[len(m.history[k])-100:]
-			}
-		}
-
-		file, err := os.Create(configDir + "/buffers/history")
-		defer file.Close()
-		if err == nil {
-			encoder := gob.NewEncoder(file)
-
-			err = encoder.Encode(m.history)
-			if err != nil {
-				m.Error("Error saving history:", err)
-				return
-			}
-		}
-	}
-}
-
-// A GutterMessage is a message displayed on the side of the editor
-type GutterMessage struct {
-	lineNum int
-	msg     string
-	kind    int
-}
-
-// These are the different types of messages
-const (
-	// GutterInfo represents a simple info message
-	GutterInfo = iota
-	// GutterWarning represents a compiler warning
-	GutterWarning
-	// GutterError represents a compiler error
-	GutterError
-)

cmd/micro/micro.go

@@ -3,78 +3,149 @@ package main
 import (
 	"flag"
 	"fmt"
+	"io"
 	"io/ioutil"
+	"log"
 	"os"
-	"path/filepath"
+	"os/signal"
+	"regexp"
 	"runtime"
-	"strings"
+	"runtime/pprof"
+	"sort"
+	"strconv"
+	"syscall"
 	"time"
 
 	"github.com/go-errors/errors"
-	"github.com/mattn/go-isatty"
-	"github.com/mitchellh/go-homedir"
-	"github.com/yuin/gopher-lua"
-	"github.com/zyedidia/clipboard"
-	"github.com/zyedidia/micro/cmd/micro/terminfo"
-	"github.com/zyedidia/tcell"
-	"github.com/zyedidia/tcell/encoding"
-	"layeh.com/gopher-luar"
-)
-
-const (
-	doubleClickThreshold = 400 // How many milliseconds to wait before a second click is not a double click
-	undoThreshold        = 500 // If two events are less than n milliseconds apart, undo both of them
-	autosaveTime         = 8   // Number of seconds to wait before autosaving
+	isatty "github.com/mattn/go-isatty"
+	lua "github.com/yuin/gopher-lua"
+	"github.com/zyedidia/micro/v2/internal/action"
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/clipboard"
+	"github.com/zyedidia/micro/v2/internal/config"
+	ulua "github.com/zyedidia/micro/v2/internal/lua"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/micro/v2/internal/shell"
+	"github.com/zyedidia/micro/v2/internal/util"
+	"github.com/zyedidia/tcell/v2"
 )
 
 var (
-	// The main screen
-	screen tcell.Screen
-
-	// Object to send messages and prompts to the user
-	messenger *Messenger
-
-	// The default highlighting style
-	// This simply defines the default foreground and background colors
-	defStyle tcell.Style
-
-	// Where the user's configuration is
-	// This should be $XDG_CONFIG_HOME/micro
-	// If $XDG_CONFIG_HOME is not set, it is ~/.config/micro
-	configDir string
-
-	// Version is the version number or commit hash
-	// These variables should be set by the linker when compiling
-	Version = "0.0.0-unknown"
-	// CommitHash is the commit this version was built on
-	CommitHash = "Unknown"
-	// CompileDate is the date this binary was compiled on
-	CompileDate = "Unknown"
-
-	// The list of views
-	tabs []*Tab
-	// This is the currently open tab
-	// It's just an index to the tab in the tabs array
-	curTab int
-
-	// Channel of jobs running in the background
-	jobs chan JobFunction
-
 	// Event channel
-	events   chan tcell.Event
 	autosave chan bool
 
-	// Channels for the terminal emulator
-	updateterm chan bool
-	closeterm  chan int
+	// Command line flags
+	flagVersion   = flag.Bool("version", false, "Show the version number and information")
+	flagConfigDir = flag.String("config-dir", "", "Specify a custom location for the configuration directory")
+	flagOptions   = flag.Bool("options", false, "Show all option help")
+	flagDebug     = flag.Bool("debug", false, "Enable debug mode (prints debug info to ./log.txt)")
+	flagProfile   = flag.Bool("profile", false, "Enable CPU profiling (writes profile info to ./micro.prof)")
+	flagPlugin    = flag.String("plugin", "", "Plugin command")
+	flagClean     = flag.Bool("clean", false, "Clean configuration directory")
+	optionFlags   map[string]*string
 
-	// How many redraws have happened
-	numRedraw uint
+	sigterm chan os.Signal
+	sighup  chan os.Signal
 )
 
+func InitFlags() {
+	flag.Usage = func() {
+		fmt.Println("Usage: micro [OPTIONS] [FILE]...")
+		fmt.Println("-clean")
+		fmt.Println("    \tCleans the configuration directory")
+		fmt.Println("-config-dir dir")
+		fmt.Println("    \tSpecify a custom location for the configuration directory")
+		fmt.Println("[FILE]:LINE:COL (if the `parsecursor` option is enabled)")
+		fmt.Println("+LINE:COL")
+		fmt.Println("    \tSpecify a line and column to start the cursor at when opening a buffer")
+		fmt.Println("-options")
+		fmt.Println("    \tShow all option help")
+		fmt.Println("-debug")
+		fmt.Println("    \tEnable debug mode (enables logging to ./log.txt)")
+		fmt.Println("-profile")
+		fmt.Println("    \tEnable CPU profiling (writes profile info to ./micro.prof")
+		fmt.Println("    \tso it can be analyzed later with \"go tool pprof micro.prof\")")
+		fmt.Println("-version")
+		fmt.Println("    \tShow the version number and information")
+
+		fmt.Print("\nMicro's plugin's can be managed at the command line with the following commands.\n")
+		fmt.Println("-plugin install [PLUGIN]...")
+		fmt.Println("    \tInstall plugin(s)")
+		fmt.Println("-plugin remove [PLUGIN]...")
+		fmt.Println("    \tRemove plugin(s)")
+		fmt.Println("-plugin update [PLUGIN]...")
+		fmt.Println("    \tUpdate plugin(s) (if no argument is given, updates all plugins)")
+		fmt.Println("-plugin search [PLUGIN]...")
+		fmt.Println("    \tSearch for a plugin")
+		fmt.Println("-plugin list")
+		fmt.Println("    \tList installed plugins")
+		fmt.Println("-plugin available")
+		fmt.Println("    \tList available plugins")
+
+		fmt.Print("\nMicro's options can also be set via command line arguments for quick\nadjustments. For real configuration, please use the settings.json\nfile (see 'help options').\n\n")
+		fmt.Println("-option value")
+		fmt.Println("    \tSet `option` to `value` for this session")
+		fmt.Println("    \tFor example: `micro -syntax off file.c`")
+		fmt.Println("\nUse `micro -options` to see the full list of configuration options")
+	}
+
+	optionFlags = make(map[string]*string)
+
+	for k, v := range config.DefaultAllSettings() {
+		optionFlags[k] = flag.String(k, "", fmt.Sprintf("The %s option. Default value: '%v'.", k, v))
+	}
+
+	flag.Parse()
+
+	if *flagVersion {
+		// If -version was passed
+		fmt.Println("Version:", util.Version)
+		fmt.Println("Commit hash:", util.CommitHash)
+		fmt.Println("Compiled on", util.CompileDate)
+		os.Exit(0)
+	}
+
+	if *flagOptions {
+		// If -options was passed
+		var keys []string
+		m := config.DefaultAllSettings()
+		for k := range m {
+			keys = append(keys, k)
+		}
+		sort.Strings(keys)
+		for _, k := range keys {
+			v := m[k]
+			fmt.Printf("-%s value\n", k)
+			fmt.Printf("    \tDefault value: '%v'\n", v)
+		}
+		os.Exit(0)
+	}
+
+	if util.Debug == "OFF" && *flagDebug {
+		util.Debug = "ON"
+	}
+}
+
+// DoPluginFlags parses and executes any flags that require LoadAllPlugins (-plugin and -clean)
+func DoPluginFlags() {
+	if *flagClean || *flagPlugin != "" {
+		config.LoadAllPlugins()
+
+		if *flagPlugin != "" {
+			args := flag.Args()
+
+			config.PluginCommand(os.Stdout, *flagPlugin, args)
+		} else if *flagClean {
+			CleanConfig()
+		}
+
+		os.Exit(0)
+	}
+}
+
 // LoadInput determines which files should be loaded into buffers
 // based on the input stored in flag.Args()
-func LoadInput() []*Buffer {
+func LoadInput(args []string) []*buffer.Buffer {
 	// There are a number of ways micro should start given its input
 
 	// 1. If it is given a files in flag.Args(), it should open those
@@ -89,26 +160,49 @@ func LoadInput() []*Buffer {
 	var filename string
 	var input []byte
 	var err error
-	args := flag.Args()
-	buffers := make([]*Buffer, 0, len(args))
+	buffers := make([]*buffer.Buffer, 0, len(args))
 
-	if len(args) > 0 {
-		// Option 1
-		// We go through each file and load it
-		for i := 0; i < len(args); i++ {
-			if strings.HasPrefix(args[i], "+") {
-				if strings.Contains(args[i], ":") {
-					split := strings.Split(args[i], ":")
-					*flagStartPos = split[0][1:] + "," + split[1]
-				} else {
-					*flagStartPos = args[i][1:] + ",0"
-				}
+	btype := buffer.BTDefault
+	if !isatty.IsTerminal(os.Stdout.Fd()) {
+		btype = buffer.BTStdout
+	}
+
+	files := make([]string, 0, len(args))
+	flagStartPos := buffer.Loc{-1, -1}
+	flagr := regexp.MustCompile(`^\+(\d+)(?::(\d+))?$`)
+	for _, a := range args {
+		match := flagr.FindStringSubmatch(a)
+		if len(match) == 3 && match[2] != "" {
+			line, err := strconv.Atoi(match[1])
+			if err != nil {
+				screen.TermMessage(err)
 				continue
 			}
-
-			buf, err := NewBufferFromFile(args[i])
+			col, err := strconv.Atoi(match[2])
 			if err != nil {
-				TermMessage(err)
+				screen.TermMessage(err)
+				continue
+			}
+			flagStartPos = buffer.Loc{col - 1, line - 1}
+		} else if len(match) == 3 && match[2] == "" {
+			line, err := strconv.Atoi(match[1])
+			if err != nil {
+				screen.TermMessage(err)
+				continue
+			}
+			flagStartPos = buffer.Loc{0, line - 1}
+		} else {
+			files = append(files, a)
+		}
+	}
+
+	if len(files) > 0 {
+		// Option 1
+		// We go through each file and load it
+		for i := 0; i < len(files); i++ {
+			buf, err := buffer.NewBufferFromFileAtLoc(files[i], btype, flagStartPos)
+			if err != nil {
+				screen.TermMessage(err)
 				continue
 			}
 			// If the file didn't exist, input will be empty, and we'll open an empty buffer
@@ -120,466 +214,267 @@ func LoadInput() []*Buffer {
 		// and we should read from stdin
 		input, err = ioutil.ReadAll(os.Stdin)
 		if err != nil {
-			TermMessage("Error reading from stdin: ", err)
+			screen.TermMessage("Error reading from stdin: ", err)
 			input = []byte{}
 		}
-		buffers = append(buffers, NewBufferFromString(string(input), filename))
+		buffers = append(buffers, buffer.NewBufferFromStringAtLoc(string(input), filename, btype, flagStartPos))
 	} else {
 		// Option 3, just open an empty buffer
-		buffers = append(buffers, NewBufferFromString(string(input), filename))
+		buffers = append(buffers, buffer.NewBufferFromStringAtLoc(string(input), filename, btype, flagStartPos))
 	}
 
 	return buffers
 }
 
-// InitConfigDir finds the configuration directory for micro according to the XDG spec.
-// If no directory is found, it creates one.
-func InitConfigDir() {
-	xdgHome := os.Getenv("XDG_CONFIG_HOME")
-	if xdgHome == "" {
-		// The user has not set $XDG_CONFIG_HOME so we should act like it was set to ~/.config
-		home, err := homedir.Dir()
-		if err != nil {
-			TermMessage("Error finding your home directory\nCan't load config files")
-			return
+func main() {
+	defer func() {
+		if util.Stdout.Len() > 0 {
+			fmt.Fprint(os.Stdout, util.Stdout.String())
 		}
-		xdgHome = home + "/.config"
-	}
-	configDir = xdgHome + "/micro"
+		os.Exit(0)
+	}()
 
-	if len(*flagConfigDir) > 0 {
-		if _, err := os.Stat(*flagConfigDir); os.IsNotExist(err) {
-			TermMessage("Error: " + *flagConfigDir + " does not exist. Defaulting to " + configDir + ".")
-		} else {
-			configDir = *flagConfigDir
-			return
-		}
-	}
-
-	if _, err := os.Stat(xdgHome); os.IsNotExist(err) {
-		// If the xdgHome doesn't exist we should create it
-		err = os.Mkdir(xdgHome, os.ModePerm)
-		if err != nil {
-			TermMessage("Error creating XDG_CONFIG_HOME directory: " + err.Error())
-		}
-	}
-
-	if _, err := os.Stat(configDir); os.IsNotExist(err) {
-		// If the micro specific config directory doesn't exist we should create that too
-		err = os.Mkdir(configDir, os.ModePerm)
-		if err != nil {
-			TermMessage("Error creating configuration directory: " + err.Error())
-		}
-	}
-}
-
-// InitScreen creates and initializes the tcell screen
-func InitScreen() {
-	// Should we enable true color?
-	truecolor := os.Getenv("MICRO_TRUECOLOR") == "1"
-
-	tcelldb := os.Getenv("TCELLDB")
-	os.Setenv("TCELLDB", configDir+"/.tcelldb")
-
-	// In order to enable true color, we have to set the TERM to `xterm-truecolor` when
-	// initializing tcell, but after that, we can set the TERM back to whatever it was
-	oldTerm := os.Getenv("TERM")
-	if truecolor {
-		os.Setenv("TERM", "xterm-truecolor")
-	}
-
-	// Initilize tcell
 	var err error
-	screen, err = tcell.NewScreen()
+
+	InitFlags()
+
+	if *flagProfile {
+		f, err := os.Create("micro.prof")
+		if err != nil {
+			log.Fatal("error creating CPU profile: ", err)
+		}
+		if err := pprof.StartCPUProfile(f); err != nil {
+			log.Fatal("error starting CPU profile: ", err)
+		}
+		defer pprof.StopCPUProfile()
+	}
+
+	InitLog()
+
+	err = config.InitConfigDir(*flagConfigDir)
 	if err != nil {
-		if err == tcell.ErrTermNotFound {
-			terminfo.WriteDB(configDir + "/.tcelldb")
-			screen, err = tcell.NewScreen()
+		screen.TermMessage(err)
+	}
+
+	config.InitRuntimeFiles()
+	err = config.ReadSettings()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+	err = config.InitGlobalSettings()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
+	// flag options
+	for k, v := range optionFlags {
+		if *v != "" {
+			nativeValue, err := config.GetNativeValue(k, config.DefaultAllSettings()[k], *v)
 			if err != nil {
-				fmt.Println(err)
-				fmt.Println("Fatal: Micro could not initialize a screen.")
-				os.Exit(1)
+				screen.TermMessage(err)
+				continue
 			}
-		} else {
-			fmt.Println(err)
-			fmt.Println("Fatal: Micro could not initialize a screen.")
-			os.Exit(1)
+			config.GlobalSettings[k] = nativeValue
 		}
 	}
-	if err = screen.Init(); err != nil {
+
+	DoPluginFlags()
+
+	err = screen.Init()
+	if err != nil {
 		fmt.Println(err)
+		fmt.Println("Fatal: Micro could not initialize a Screen.")
 		os.Exit(1)
 	}
+	m := clipboard.SetMethod(config.GetGlobalOption("clipboard").(string))
+	clipErr := clipboard.Initialize(m)
 
-	// Now we can put the TERM back to what it was before
-	if truecolor {
-		os.Setenv("TERM", oldTerm)
-	}
-
-	if GetGlobalOption("mouse").(bool) {
-		screen.EnableMouse()
-	}
-
-	os.Setenv("TCELLDB", tcelldb)
-
-	// screen.SetStyle(defStyle)
-}
-
-// RedrawAll redraws everything -- all the views and the messenger
-func RedrawAll() {
-	messenger.Clear()
-
-	w, h := screen.Size()
-	for x := 0; x < w; x++ {
-		for y := 0; y < h; y++ {
-			screen.SetContent(x, y, ' ', nil, defStyle)
-		}
-	}
-
-	for _, v := range tabs[curTab].Views {
-		v.Display()
-	}
-	DisplayTabs()
-	messenger.Display()
-	if globalSettings["keymenu"].(bool) {
-		DisplayKeyMenu()
-	}
-	screen.Show()
-
-	if numRedraw%50 == 0 {
-		runtime.GC()
-	}
-	numRedraw++
-}
-
-func LoadAll() {
-	// Find the user's configuration directory (probably $XDG_CONFIG_HOME/micro)
-	InitConfigDir()
-
-	// Build a list of available Extensions (Syntax, Colorscheme etc.)
-	InitRuntimeFiles()
-
-	// Load the user's settings
-	InitGlobalSettings()
-
-	InitCommands()
-	InitBindings()
-
-	InitColorscheme()
-
-	for _, tab := range tabs {
-		for _, v := range tab.Views {
-			v.Buf.UpdateRules()
-		}
-	}
-}
-
-// Command line flags
-var flagVersion = flag.Bool("version", false, "Show the version number and information")
-var flagStartPos = flag.String("startpos", "", "LINE,COL to start the cursor at when opening a buffer.")
-var flagConfigDir = flag.String("config-dir", "", "Specify a custom location for the configuration directory")
-var flagOptions = flag.Bool("options", false, "Show all option help")
-
-func main() {
-	flag.Usage = func() {
-		fmt.Println("Usage: micro [OPTIONS] [FILE]...")
-		fmt.Println("-config-dir dir")
-		fmt.Println("    \tSpecify a custom location for the configuration directory")
-		fmt.Println("-startpos LINE,COL")
-		fmt.Println("+LINE:COL")
-		fmt.Println("    \tSpecify a line and column to start the cursor at when opening a buffer")
-		fmt.Println("    \tThis can also be done by opening file:LINE:COL")
-		fmt.Println("-options")
-		fmt.Println("    \tShow all option help")
-		fmt.Println("-version")
-		fmt.Println("    \tShow the version number and information")
-
-		fmt.Print("\nMicro's options can also be set via command line arguments for quick\nadjustments. For real configuration, please use the settings.json\nfile (see 'help options').\n\n")
-		fmt.Println("-option value")
-		fmt.Println("    \tSet `option` to `value` for this session")
-		fmt.Println("    \tFor example: `micro -syntax off file.c`")
-		fmt.Println("\nUse `micro -options` to see the full list of configuration options")
-	}
-
-	optionFlags := make(map[string]*string)
-
-	for k, v := range DefaultGlobalSettings() {
-		optionFlags[k] = flag.String(k, "", fmt.Sprintf("The %s option. Default value: '%v'", k, v))
-	}
-
-	flag.Parse()
-
-	if *flagVersion {
-		// If -version was passed
-		fmt.Println("Version:", Version)
-		fmt.Println("Commit hash:", CommitHash)
-		fmt.Println("Compiled on", CompileDate)
-		os.Exit(0)
-	}
-
-	if *flagOptions {
-		// If -options was passed
-		for k, v := range DefaultGlobalSettings() {
-			fmt.Printf("-%s value\n", k)
-			fmt.Printf("    \tThe %s option. Default value: '%v'\n", k, v)
-		}
-		os.Exit(0)
-	}
-
-	// Start the Lua VM for running plugins
-	L = lua.NewState()
-	defer L.Close()
-
-	// Some encoding stuff in case the user isn't using UTF-8
-	encoding.Register()
-	tcell.SetEncodingFallback(tcell.EncodingFallbackASCII)
-
-	// Find the user's configuration directory (probably $XDG_CONFIG_HOME/micro)
-	InitConfigDir()
-
-	// Build a list of available Extensions (Syntax, Colorscheme etc.)
-	InitRuntimeFiles()
-
-	// Load the user's settings
-	InitGlobalSettings()
-
-	InitCommands()
-	InitBindings()
-
-	// Start the screen
-	InitScreen()
-
-	// This is just so if we have an error, we can exit cleanly and not completely
-	// mess up the terminal being worked in
-	// In other words we need to shut down tcell before the program crashes
 	defer func() {
 		if err := recover(); err != nil {
-			screen.Fini()
-			fmt.Println("Micro encountered an error:", err)
-			// Print the stack trace too
-			fmt.Print(errors.Wrap(err, 2).ErrorStack())
+			if screen.Screen != nil {
+				screen.Screen.Fini()
+			}
+			if e, ok := err.(*lua.ApiError); ok {
+				fmt.Println("Lua API error:", e)
+			} else {
+				fmt.Println("Micro encountered an error:", errors.Wrap(err, 2).ErrorStack(), "\nIf you can reproduce this error, please report it at https://github.com/zyedidia/micro/issues")
+			}
+			// backup all open buffers
+			for _, b := range buffer.OpenBuffers {
+				b.Backup()
+			}
 			os.Exit(1)
 		}
 	}()
 
-	// Create a new messenger
-	// This is used for sending the user messages in the bottom of the editor
-	messenger = new(Messenger)
-	messenger.LoadHistory()
-
-	// Now we load the input
-	buffers := LoadInput()
-	if len(buffers) == 0 {
-		screen.Fini()
-		os.Exit(1)
+	err = config.LoadAllPlugins()
+	if err != nil {
+		screen.TermMessage(err)
 	}
 
-	for _, buf := range buffers {
-		// For each buffer we create a new tab and place the view in that tab
-		tab := NewTabFromView(NewView(buf))
-		tab.SetNum(len(tabs))
-		tabs = append(tabs, tab)
-		for _, t := range tabs {
-			for _, v := range t.Views {
-				v.Center(false)
-			}
+	action.InitBindings()
+	action.InitCommands()
 
-			t.Resize()
-		}
+	err = config.InitColorscheme()
+	if err != nil {
+		screen.TermMessage(err)
 	}
 
-	for k, v := range optionFlags {
-		if *v != "" {
-			SetOption(k, *v)
-		}
+	err = config.RunPluginFn("preinit")
+	if err != nil {
+		screen.TermMessage(err)
 	}
 
-	// Load all the plugin stuff
-	// We give plugins access to a bunch of variables here which could be useful to them
-	L.SetGlobal("OS", luar.New(L, runtime.GOOS))
-	L.SetGlobal("tabs", luar.New(L, tabs))
-	L.SetGlobal("curTab", luar.New(L, curTab))
-	L.SetGlobal("messenger", luar.New(L, messenger))
-	L.SetGlobal("GetOption", luar.New(L, GetOption))
-	L.SetGlobal("AddOption", luar.New(L, AddOption))
-	L.SetGlobal("SetOption", luar.New(L, SetOption))
-	L.SetGlobal("SetLocalOption", luar.New(L, SetLocalOption))
-	L.SetGlobal("BindKey", luar.New(L, BindKey))
-	L.SetGlobal("MakeCommand", luar.New(L, MakeCommand))
-	L.SetGlobal("CurView", luar.New(L, CurView))
-	L.SetGlobal("IsWordChar", luar.New(L, IsWordChar))
-	L.SetGlobal("HandleCommand", luar.New(L, HandleCommand))
-	L.SetGlobal("HandleShellCommand", luar.New(L, HandleShellCommand))
-	L.SetGlobal("ExecCommand", luar.New(L, ExecCommand))
-	L.SetGlobal("RunShellCommand", luar.New(L, RunShellCommand))
-	L.SetGlobal("RunBackgroundShell", luar.New(L, RunBackgroundShell))
-	L.SetGlobal("RunInteractiveShell", luar.New(L, RunInteractiveShell))
-	L.SetGlobal("TermEmuSupported", luar.New(L, TermEmuSupported))
-	L.SetGlobal("RunTermEmulator", luar.New(L, RunTermEmulator))
-	L.SetGlobal("GetLeadingWhitespace", luar.New(L, GetLeadingWhitespace))
-	L.SetGlobal("MakeCompletion", luar.New(L, MakeCompletion))
-	L.SetGlobal("NewBuffer", luar.New(L, NewBufferFromString))
-	L.SetGlobal("NewBufferFromFile", luar.New(L, NewBufferFromFile))
-	L.SetGlobal("RuneStr", luar.New(L, func(r rune) string {
-		return string(r)
-	}))
-	L.SetGlobal("Loc", luar.New(L, func(x, y int) Loc {
-		return Loc{x, y}
-	}))
-	L.SetGlobal("WorkingDirectory", luar.New(L, os.Getwd))
-	L.SetGlobal("JoinPaths", luar.New(L, filepath.Join))
-	L.SetGlobal("DirectoryName", luar.New(L, filepath.Dir))
-	L.SetGlobal("configDir", luar.New(L, configDir))
-	L.SetGlobal("Reload", luar.New(L, LoadAll))
-	L.SetGlobal("ByteOffset", luar.New(L, ByteOffset))
-	L.SetGlobal("ToCharPos", luar.New(L, ToCharPos))
+	action.InitGlobals()
+	buffer.SetMessager(action.InfoBar)
+	args := flag.Args()
+	b := LoadInput(args)
 
-	// Used for asynchronous jobs
-	L.SetGlobal("JobStart", luar.New(L, JobStart))
-	L.SetGlobal("JobSpawn", luar.New(L, JobSpawn))
-	L.SetGlobal("JobSend", luar.New(L, JobSend))
-	L.SetGlobal("JobStop", luar.New(L, JobStop))
-
-	// Extension Files
-	L.SetGlobal("ReadRuntimeFile", luar.New(L, PluginReadRuntimeFile))
-	L.SetGlobal("ListRuntimeFiles", luar.New(L, PluginListRuntimeFiles))
-	L.SetGlobal("AddRuntimeFile", luar.New(L, PluginAddRuntimeFile))
-	L.SetGlobal("AddRuntimeFilesFromDirectory", luar.New(L, PluginAddRuntimeFilesFromDirectory))
-	L.SetGlobal("AddRuntimeFileFromMemory", luar.New(L, PluginAddRuntimeFileFromMemory))
-
-	// Access to Go stdlib
-	L.SetGlobal("import", luar.New(L, Import))
-
-	jobs = make(chan JobFunction, 100)
-	events = make(chan tcell.Event, 100)
-	autosave = make(chan bool)
-	updateterm = make(chan bool)
-	closeterm = make(chan int)
-
-	LoadPlugins()
-
-	for _, t := range tabs {
-		for _, v := range t.Views {
-			GlobalPluginCall("onViewOpen", v)
-			GlobalPluginCall("onBufferOpen", v.Buf)
-		}
+	if len(b) == 0 {
+		// No buffers to open
+		screen.Screen.Fini()
+		runtime.Goexit()
 	}
 
-	InitColorscheme()
-	messenger.style = defStyle
+	action.InitTabs(b)
+
+	err = config.RunPluginFn("init")
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
+	err = config.RunPluginFn("postinit")
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
+	if clipErr != nil {
+		log.Println(clipErr, " or change 'clipboard' option")
+	}
+
+	if a := config.GetGlobalOption("autosave").(float64); a > 0 {
+		config.SetAutoTime(int(a))
+		config.StartAutoSave()
+	}
+
+	screen.Events = make(chan tcell.Event)
+
+	sigterm = make(chan os.Signal, 1)
+	sighup = make(chan os.Signal, 1)
+	signal.Notify(sigterm, syscall.SIGTERM, syscall.SIGINT, syscall.SIGQUIT, syscall.SIGABRT)
+	signal.Notify(sighup, syscall.SIGHUP)
 
 	// Here is the event loop which runs in a separate thread
 	go func() {
 		for {
-			if screen != nil {
-				events <- screen.PollEvent()
+			screen.Lock()
+			e := screen.Screen.PollEvent()
+			screen.Unlock()
+			if e != nil {
+				screen.Events <- e
 			}
 		}
 	}()
 
-	go func() {
-		for {
-			time.Sleep(autosaveTime * time.Second)
-			if globalSettings["autosave"].(bool) {
-				autosave <- true
-			}
-		}
-	}()
+	// clear the drawchan so we don't redraw excessively
+	// if someone requested a redraw before we started displaying
+	for len(screen.DrawChan()) > 0 {
+		<-screen.DrawChan()
+	}
+
+	// wait for initial resize event
+	select {
+	case event := <-screen.Events:
+		action.Tabs.HandleEvent(event)
+	case <-time.After(10 * time.Millisecond):
+		// time out after 10ms
+	}
 
 	for {
-		// Display everything
-		RedrawAll()
-
-		var event tcell.Event
-
-		// Check for new events
-		select {
-		case f := <-jobs:
-			// If a new job has finished while running in the background we should execute the callback
-			f.function(f.output, f.args...)
-			continue
-		case <-autosave:
-			if CurView().Buf.Path != "" {
-				CurView().Save(true)
-			}
-		case <-updateterm:
-			continue
-		case vnum := <-closeterm:
-			tabs[curTab].Views[vnum].CloseTerminal()
-		case event = <-events:
-		}
-
-		for event != nil {
-			didAction := false
-
-			switch e := event.(type) {
-			case *tcell.EventResize:
-				for _, t := range tabs {
-					t.Resize()
-				}
-			case *tcell.EventMouse:
-				if !searching {
-					if e.Buttons() == tcell.Button1 {
-						// If the user left clicked we check a couple things
-						_, h := screen.Size()
-						x, y := e.Position()
-						if y == h-1 && messenger.message != "" && globalSettings["infobar"].(bool) {
-							// If the user clicked in the bottom bar, and there is a message down there
-							// we copy it to the clipboard.
-							// Often error messages are displayed down there so it can be useful to easily
-							// copy the message
-							clipboard.WriteAll(messenger.message, "primary")
-							break
-						}
-
-						if CurView().mouseReleased {
-							// We loop through each view in the current tab and make sure the current view
-							// is the one being clicked in
-							for _, v := range tabs[curTab].Views {
-								if x >= v.x && x < v.x+v.Width && y >= v.y && y < v.y+v.Height {
-									tabs[curTab].CurView = v.Num
-								}
-							}
-						}
-					} else if e.Buttons() == tcell.WheelUp || e.Buttons() == tcell.WheelDown {
-						var view *View
-						x, y := e.Position()
-						for _, v := range tabs[curTab].Views {
-							if x >= v.x && x < v.x+v.Width && y >= v.y && y < v.y+v.Height {
-								view = tabs[curTab].Views[v.Num]
-							}
-						}
-						if view != nil {
-							view.HandleEvent(e)
-							didAction = true
-						}
-					}
-				}
-			}
-
-			if !didAction {
-				// This function checks the mouse event for the possibility of changing the current tab
-				// If the tab was changed it returns true
-				if TabbarHandleMouseEvent(event) {
-					break
-				}
-
-				if searching {
-					// Since searching is done in real time, we need to redraw every time
-					// there is a new event in the search bar so we need a special function
-					// to run instead of the standard HandleEvent.
-					HandleSearchEvent(event, CurView())
-				} else {
-					// Send it to the view
-					CurView().HandleEvent(event)
-				}
-			}
-
-			select {
-			case event = <-events:
-			default:
-				event = nil
-			}
-		}
+		DoEvent()
 	}
 }
+
+// DoEvent runs the main action loop of the editor
+func DoEvent() {
+	var event tcell.Event
+
+	// Display everything
+	screen.Screen.Fill(' ', config.DefStyle)
+	screen.Screen.HideCursor()
+	action.Tabs.Display()
+	for _, ep := range action.MainTab().Panes {
+		ep.Display()
+	}
+	action.MainTab().Display()
+	action.InfoBar.Display()
+	screen.Screen.Show()
+
+	// Check for new events
+	select {
+	case f := <-shell.Jobs:
+		// If a new job has finished while running in the background we should execute the callback
+		ulua.Lock.Lock()
+		f.Function(f.Output, f.Args)
+		ulua.Lock.Unlock()
+	case <-config.Autosave:
+		ulua.Lock.Lock()
+		for _, b := range buffer.OpenBuffers {
+			b.Save()
+		}
+		ulua.Lock.Unlock()
+	case <-shell.CloseTerms:
+	case event = <-screen.Events:
+	case <-screen.DrawChan():
+		for len(screen.DrawChan()) > 0 {
+			<-screen.DrawChan()
+		}
+	case <-sighup:
+		for _, b := range buffer.OpenBuffers {
+			if !b.Modified() {
+				b.Fini()
+			}
+		}
+		os.Exit(0)
+	case <-sigterm:
+		for _, b := range buffer.OpenBuffers {
+			if !b.Modified() {
+				b.Fini()
+			}
+		}
+
+		if screen.Screen != nil {
+			screen.Screen.Fini()
+		}
+		os.Exit(0)
+	}
+
+	if e, ok := event.(*tcell.EventError); ok {
+		log.Println("tcell event error: ", e.Error())
+
+		if e.Err() == io.EOF {
+			// shutdown due to terminal closing/becoming inaccessible
+			for _, b := range buffer.OpenBuffers {
+				if !b.Modified() {
+					b.Fini()
+				}
+			}
+
+			if screen.Screen != nil {
+				screen.Screen.Fini()
+			}
+			os.Exit(0)
+		}
+		return
+	}
+
+	ulua.Lock.Lock()
+	// if event != nil {
+	if action.InfoBar.HasPrompt {
+		action.InfoBar.HandleEvent(event)
+	} else {
+		action.Tabs.HandleEvent(event)
+	}
+	// }
+	ulua.Lock.Unlock()
+}

cmd/micro/micro_test.go

@@ -0,0 +1,339 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"testing"
+
+	"github.com/go-errors/errors"
+	"github.com/stretchr/testify/assert"
+	"github.com/zyedidia/micro/v2/internal/action"
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/tcell/v2"
+)
+
+var tempDir string
+var sim tcell.SimulationScreen
+
+func init() {
+	screen.Events = make(chan tcell.Event, 8)
+}
+
+func startup(args []string) (tcell.SimulationScreen, error) {
+	var err error
+
+	tempDir, err = ioutil.TempDir("", "micro_test")
+	if err != nil {
+		return nil, err
+	}
+	err = config.InitConfigDir(tempDir)
+	if err != nil {
+		return nil, err
+	}
+
+	config.InitRuntimeFiles()
+	err = config.ReadSettings()
+	if err != nil {
+		return nil, err
+	}
+	err = config.InitGlobalSettings()
+	if err != nil {
+		return nil, err
+	}
+
+	s, err := screen.InitSimScreen()
+	if err != nil {
+		return nil, err
+	}
+
+	defer func() {
+		if err := recover(); err != nil {
+			screen.Screen.Fini()
+			fmt.Println("Micro encountered an error:", err)
+			// backup all open buffers
+			for _, b := range buffer.OpenBuffers {
+				b.Backup()
+			}
+			// Print the stack trace too
+			log.Fatalf(errors.Wrap(err, 2).ErrorStack())
+		}
+	}()
+
+	err = config.LoadAllPlugins()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
+	action.InitBindings()
+	action.InitCommands()
+
+	err = config.InitColorscheme()
+	if err != nil {
+		return nil, err
+	}
+
+	b := LoadInput(args)
+
+	if len(b) == 0 {
+		return nil, errors.New("No buffers opened")
+	}
+
+	action.InitTabs(b)
+	action.InitGlobals()
+
+	err = config.RunPluginFn("init")
+	if err != nil {
+		return nil, err
+	}
+
+	s.InjectResize()
+	handleEvent()
+
+	return s, nil
+}
+
+func cleanup() {
+	os.RemoveAll(tempDir)
+}
+
+func handleEvent() {
+	screen.Lock()
+	e := screen.Screen.PollEvent()
+	screen.Unlock()
+	if e != nil {
+		screen.Events <- e
+	}
+	DoEvent()
+}
+
+func injectKey(key tcell.Key, r rune, mod tcell.ModMask) {
+	sim.InjectKey(key, r, mod)
+	handleEvent()
+}
+
+func injectMouse(x, y int, buttons tcell.ButtonMask, mod tcell.ModMask) {
+	sim.InjectMouse(x, y, buttons, mod)
+	handleEvent()
+}
+
+func injectString(str string) {
+	// the tcell simulation screen event channel can only handle
+	// 10 events at once, so we need to divide up the key events
+	// into chunks of 10 and handle the 10 events before sending
+	// another chunk of events
+	iters := len(str) / 10
+	extra := len(str) % 10
+
+	for i := 0; i < iters; i++ {
+		s := i * 10
+		e := i*10 + 10
+		sim.InjectKeyBytes([]byte(str[s:e]))
+		for i := 0; i < 10; i++ {
+			handleEvent()
+		}
+	}
+
+	sim.InjectKeyBytes([]byte(str[len(str)-extra:]))
+	for i := 0; i < extra; i++ {
+		handleEvent()
+	}
+}
+
+func openFile(file string) {
+	injectKey(tcell.KeyCtrlE, rune(tcell.KeyCtrlE), tcell.ModCtrl)
+	injectString(fmt.Sprintf("open %s", file))
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+}
+
+func createTestFile(name string, content string) (string, error) {
+	testf, err := ioutil.TempFile("", name)
+	if err != nil {
+		return "", err
+	}
+
+	if _, err := testf.Write([]byte(content)); err != nil {
+		return "", err
+	}
+	if err := testf.Close(); err != nil {
+		return "", err
+	}
+
+	return testf.Name(), nil
+}
+
+func TestMain(m *testing.M) {
+	var err error
+	sim, err = startup([]string{})
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	retval := m.Run()
+	cleanup()
+
+	os.Exit(retval)
+}
+
+func TestSimpleEdit(t *testing.T) {
+	file, err := createTestFile("micro_simple_edit_test", "base content")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer os.Remove(file)
+
+	openFile(file)
+
+	var buf *buffer.Buffer
+	for _, b := range buffer.OpenBuffers {
+		if b.Path == file {
+			buf = b
+		}
+	}
+
+	if buf == nil {
+		t.Errorf("Could not find buffer %s", file)
+		return
+	}
+
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+	injectKey(tcell.KeyUp, 0, tcell.ModNone)
+	injectString("first line")
+
+	// test both kinds of backspace
+	for i := 0; i < len("ne"); i++ {
+		injectKey(tcell.KeyBackspace, rune(tcell.KeyBackspace), tcell.ModNone)
+	}
+	for i := 0; i < len(" li"); i++ {
+		injectKey(tcell.KeyBackspace2, rune(tcell.KeyBackspace2), tcell.ModNone)
+	}
+	injectString("foobar")
+
+	injectKey(tcell.KeyCtrlS, rune(tcell.KeyCtrlS), tcell.ModCtrl)
+
+	data, err := ioutil.ReadFile(file)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Equal(t, "firstfoobar\nbase content\n", string(data))
+}
+
+func TestMouse(t *testing.T) {
+	file, err := createTestFile("micro_mouse_test", "base content")
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer os.Remove(file)
+
+	openFile(file)
+
+	// buffer:
+	// base content
+	// the selections need to happen at different locations to avoid a double click
+	injectMouse(3, 0, tcell.Button1, tcell.ModNone)
+	injectKey(tcell.KeyLeft, 0, tcell.ModNone)
+	injectMouse(0, 0, tcell.ButtonNone, tcell.ModNone)
+	injectString("secondline")
+	// buffer:
+	// secondlinebase content
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+	// buffer:
+	// secondline
+	// base content
+	injectMouse(2, 0, tcell.Button1, tcell.ModNone)
+	injectMouse(0, 0, tcell.ButtonNone, tcell.ModNone)
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+	// buffer:
+	//
+	// secondline
+	// base content
+	injectKey(tcell.KeyUp, 0, tcell.ModNone)
+	injectString("firstline")
+	// buffer:
+	// firstline
+	// secondline
+	// base content
+	injectKey(tcell.KeyCtrlS, rune(tcell.KeyCtrlS), tcell.ModCtrl)
+
+	data, err := ioutil.ReadFile(file)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Equal(t, "firstline\nsecondline\nbase content\n", string(data))
+}
+
+var srTestStart = `foo
+foo
+foofoofoo
+Ernleȝe foo æðelen
+`
+var srTest2 = `test_string
+test_string
+test_stringtest_stringtest_string
+Ernleȝe test_string æðelen
+`
+var srTest3 = `test_foo
+test_string
+test_footest_stringtest_foo
+Ernleȝe test_string æðelen
+`
+
+func TestSearchAndReplace(t *testing.T) {
+	file, err := createTestFile("micro_search_replace_test", srTestStart)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+	defer os.Remove(file)
+
+	openFile(file)
+
+	injectKey(tcell.KeyCtrlE, rune(tcell.KeyCtrlE), tcell.ModCtrl)
+	injectString(fmt.Sprintf("replaceall %s %s", "foo", "test_string"))
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+
+	injectKey(tcell.KeyCtrlS, rune(tcell.KeyCtrlS), tcell.ModCtrl)
+
+	data, err := ioutil.ReadFile(file)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Equal(t, srTest2, string(data))
+
+	injectKey(tcell.KeyCtrlE, rune(tcell.KeyCtrlE), tcell.ModCtrl)
+	injectString(fmt.Sprintf("replace %s %s", "string", "foo"))
+	injectKey(tcell.KeyEnter, rune(tcell.KeyEnter), tcell.ModNone)
+	injectString("ynyny")
+	injectKey(tcell.KeyEscape, 0, tcell.ModNone)
+
+	injectKey(tcell.KeyCtrlS, rune(tcell.KeyCtrlS), tcell.ModCtrl)
+
+	data, err = ioutil.ReadFile(file)
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	assert.Equal(t, srTest3, string(data))
+}
+
+func TestMultiCursor(t *testing.T) {
+	// TODO
+}
+
+func TestSettingsPersistence(t *testing.T) {
+	// TODO
+}
+
+// more tests (rendering, tabs, plugins)?

cmd/micro/plugin.go

@@ -1,184 +0,0 @@
-package main
-
-import (
-	"errors"
-	"io/ioutil"
-	"os"
-	"strings"
-
-	"github.com/yuin/gopher-lua"
-	"github.com/zyedidia/tcell"
-	"layeh.com/gopher-luar"
-)
-
-var loadedPlugins map[string]string
-
-// Call calls the lua function 'function'
-// If it does not exist nothing happens, if there is an error,
-// the error is returned
-func Call(function string, args ...interface{}) (lua.LValue, error) {
-	var luaFunc lua.LValue
-	if strings.Contains(function, ".") {
-		plugin := L.GetGlobal(strings.Split(function, ".")[0])
-		if plugin.String() == "nil" {
-			return nil, errors.New("function does not exist: " + function)
-		}
-		luaFunc = L.GetField(plugin, strings.Split(function, ".")[1])
-	} else {
-		luaFunc = L.GetGlobal(function)
-	}
-
-	if luaFunc.String() == "nil" {
-		return nil, errors.New("function does not exist: " + function)
-	}
-	var luaArgs []lua.LValue
-	for _, v := range args {
-		luaArgs = append(luaArgs, luar.New(L, v))
-	}
-	err := L.CallByParam(lua.P{
-		Fn:      luaFunc,
-		NRet:    1,
-		Protect: true,
-	}, luaArgs...)
-	ret := L.Get(-1) // returned value
-	if ret.String() != "nil" {
-		L.Pop(1) // remove received value
-	}
-	return ret, err
-}
-
-// LuaFunctionBinding is a function generator which takes the name of a lua function
-// and creates a function that will call that lua function
-// Specifically it creates a function that can be called as a binding because this is used
-// to bind keys to lua functions
-func LuaFunctionBinding(function string) func(*View, bool) bool {
-	return func(v *View, _ bool) bool {
-		_, err := Call(function, nil)
-		if err != nil {
-			TermMessage(err)
-		}
-		return false
-	}
-}
-
-// LuaFunctionMouseBinding is a function generator which takes the name of a lua function
-// and creates a function that will call that lua function
-// Specifically it creates a function that can be called as a mouse binding because this is used
-// to bind mouse actions to lua functions
-func LuaFunctionMouseBinding(function string) func(*View, bool, *tcell.EventMouse) bool {
-	return func(v *View, _ bool, e *tcell.EventMouse) bool {
-		_, err := Call(function, e)
-		if err != nil {
-			TermMessage(err)
-		}
-		return false
-	}
-}
-
-func unpack(old []string) []interface{} {
-	new := make([]interface{}, len(old))
-	for i, v := range old {
-		new[i] = v
-	}
-	return new
-}
-
-// LuaFunctionCommand is the same as LuaFunctionBinding except it returns a normal function
-// so that a command can be bound to a lua function
-func LuaFunctionCommand(function string) func([]string) {
-	return func(args []string) {
-		_, err := Call(function, unpack(args)...)
-		if err != nil {
-			TermMessage(err)
-		}
-	}
-}
-
-// LuaFunctionComplete returns a function which can be used for autocomplete in plugins
-func LuaFunctionComplete(function string) func(string) []string {
-	return func(input string) (result []string) {
-
-		res, err := Call(function, input)
-		if err != nil {
-			TermMessage(err)
-		}
-		if tbl, ok := res.(*lua.LTable); !ok {
-			TermMessage(function, "should return a table of strings")
-		} else {
-			for i := 1; i <= tbl.Len(); i++ {
-				val := tbl.RawGetInt(i)
-				if v, ok := val.(lua.LString); !ok {
-					TermMessage(function, "should return a table of strings")
-				} else {
-					result = append(result, string(v))
-				}
-			}
-		}
-		return result
-	}
-}
-
-// LuaFunctionJob returns a function that will call the given lua function
-// structured as a job call i.e. the job output and arguments are provided
-// to the lua function
-func LuaFunctionJob(function string) func(string, ...string) {
-	return func(output string, args ...string) {
-		_, err := Call(function, unpack(append([]string{output}, args...))...)
-		if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
-			TermMessage(err)
-		}
-	}
-}
-
-// luaPluginName convert a human-friendly plugin name into a valid lua variable name.
-func luaPluginName(name string) string {
-	return strings.Replace(name, "-", "_", -1)
-}
-
-// LoadPlugins loads the pre-installed plugins and the plugins located in ~/.config/micro/plugins
-func LoadPlugins() {
-	loadedPlugins = make(map[string]string)
-
-	for _, plugin := range ListRuntimeFiles(RTPlugin) {
-		pluginName := plugin.Name()
-		if _, ok := loadedPlugins[pluginName]; ok {
-			continue
-		}
-
-		data, err := plugin.Data()
-		if err != nil {
-			TermMessage("Error loading plugin: " + pluginName)
-			continue
-		}
-
-		pluginLuaName := luaPluginName(pluginName)
-
-		if err := LoadFile(pluginLuaName, pluginLuaName, string(data)); err != nil {
-			TermMessage(err)
-			continue
-		}
-
-		loadedPlugins[pluginName] = pluginLuaName
-
-	}
-
-	if _, err := os.Stat(configDir + "/init.lua"); err == nil {
-		data, _ := ioutil.ReadFile(configDir + "/init.lua")
-		if err := LoadFile("init", configDir+"init.lua", string(data)); err != nil {
-			TermMessage(err)
-		}
-		loadedPlugins["init"] = "init"
-	}
-}
-
-// GlobalCall makes a call to a function in every plugin that is currently
-// loaded
-func GlobalPluginCall(function string, args ...interface{}) {
-	for pl := range loadedPlugins {
-		_, err := Call(pl+"."+function, args...)
-		if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
-			TermMessage(err)
-			continue
-		}
-	}
-}

cmd/micro/rtfiles.go

@@ -1,207 +0,0 @@
-package main
-
-import (
-	"io/ioutil"
-	"os"
-	"path"
-	"path/filepath"
-)
-
-const (
-	RTColorscheme = "colorscheme"
-	RTSyntax      = "syntax"
-	RTHelp        = "help"
-	RTPlugin      = "plugin"
-)
-
-// RuntimeFile allows the program to read runtime data like colorschemes or syntax files
-type RuntimeFile interface {
-	// Name returns a name of the file without paths or extensions
-	Name() string
-	// Data returns the content of the file.
-	Data() ([]byte, error)
-}
-
-// allFiles contains all available files, mapped by filetype
-var allFiles map[string][]RuntimeFile
-
-// some file on filesystem
-type realFile string
-
-// some asset file
-type assetFile string
-
-// some file on filesystem but with a different name
-type namedFile struct {
-	realFile
-	name string
-}
-
-// a file with the data stored in memory
-type memoryFile struct {
-	name string
-	data []byte
-}
-
-func (mf memoryFile) Name() string {
-	return mf.name
-}
-func (mf memoryFile) Data() ([]byte, error) {
-	return mf.data, nil
-}
-
-func (rf realFile) Name() string {
-	fn := filepath.Base(string(rf))
-	return fn[:len(fn)-len(filepath.Ext(fn))]
-}
-
-func (rf realFile) Data() ([]byte, error) {
-	return ioutil.ReadFile(string(rf))
-}
-
-func (af assetFile) Name() string {
-	fn := path.Base(string(af))
-	return fn[:len(fn)-len(path.Ext(fn))]
-}
-
-func (af assetFile) Data() ([]byte, error) {
-	return Asset(string(af))
-}
-
-func (nf namedFile) Name() string {
-	return nf.name
-}
-
-// AddRuntimeFile registers a file for the given filetype
-func AddRuntimeFile(fileType string, file RuntimeFile) {
-	if allFiles == nil {
-		allFiles = make(map[string][]RuntimeFile)
-	}
-	allFiles[fileType] = append(allFiles[fileType], file)
-}
-
-// AddRuntimeFilesFromDirectory registers each file from the given directory for
-// the filetype which matches the file-pattern
-func AddRuntimeFilesFromDirectory(fileType, directory, pattern string) {
-	files, _ := ioutil.ReadDir(directory)
-	for _, f := range files {
-		if ok, _ := filepath.Match(pattern, f.Name()); !f.IsDir() && ok {
-			fullPath := filepath.Join(directory, f.Name())
-			AddRuntimeFile(fileType, realFile(fullPath))
-		}
-	}
-}
-
-// AddRuntimeFilesFromAssets registers each file from the given asset-directory for
-// the filetype which matches the file-pattern
-func AddRuntimeFilesFromAssets(fileType, directory, pattern string) {
-	files, err := AssetDir(directory)
-	if err != nil {
-		return
-	}
-	for _, f := range files {
-		if ok, _ := path.Match(pattern, f); ok {
-			AddRuntimeFile(fileType, assetFile(path.Join(directory, f)))
-		}
-	}
-}
-
-// FindRuntimeFile finds a runtime file of the given filetype and name
-// will return nil if no file was found
-func FindRuntimeFile(fileType, name string) RuntimeFile {
-	for _, f := range ListRuntimeFiles(fileType) {
-		if f.Name() == name {
-			return f
-		}
-	}
-	return nil
-}
-
-// ListRuntimeFiles lists all known runtime files for the given filetype
-func ListRuntimeFiles(fileType string) []RuntimeFile {
-	if files, ok := allFiles[fileType]; ok {
-		return files
-	}
-	return []RuntimeFile{}
-}
-
-// InitRuntimeFiles initializes all assets file and the config directory
-func InitRuntimeFiles() {
-	add := func(fileType, dir, pattern string) {
-		AddRuntimeFilesFromDirectory(fileType, filepath.Join(configDir, dir), pattern)
-		AddRuntimeFilesFromAssets(fileType, path.Join("runtime", dir), pattern)
-	}
-
-	add(RTColorscheme, "colorschemes", "*.micro")
-	add(RTSyntax, "syntax", "*.yaml")
-	add(RTHelp, "help", "*.md")
-
-	// Search configDir for plugin-scripts
-	files, _ := ioutil.ReadDir(filepath.Join(configDir, "plugins"))
-	for _, f := range files {
-		realpath, _ := filepath.EvalSymlinks(filepath.Join(configDir, "plugins", f.Name()))
-		realpathStat, _ := os.Stat(realpath)
-		if realpathStat.IsDir() {
-			scriptPath := filepath.Join(configDir, "plugins", f.Name(), f.Name()+".lua")
-			if _, err := os.Stat(scriptPath); err == nil {
-				AddRuntimeFile(RTPlugin, realFile(scriptPath))
-			}
-		}
-	}
-
-	if files, err := AssetDir("runtime/plugins"); err == nil {
-		for _, f := range files {
-			scriptPath := path.Join("runtime/plugins", f, f+".lua")
-			if _, err := AssetInfo(scriptPath); err == nil {
-				AddRuntimeFile(RTPlugin, assetFile(scriptPath))
-			}
-		}
-	}
-}
-
-// PluginReadRuntimeFile allows plugin scripts to read the content of a runtime file
-func PluginReadRuntimeFile(fileType, name string) string {
-	if file := FindRuntimeFile(fileType, name); file != nil {
-		if data, err := file.Data(); err == nil {
-			return string(data)
-		}
-	}
-	return ""
-}
-
-// PluginListRuntimeFiles allows plugins to lists all runtime files of the given type
-func PluginListRuntimeFiles(fileType string) []string {
-	files := ListRuntimeFiles(fileType)
-	result := make([]string, len(files))
-	for i, f := range files {
-		result[i] = f.Name()
-	}
-	return result
-}
-
-// PluginAddRuntimeFile adds a file to the runtime files for a plugin
-func PluginAddRuntimeFile(plugin, filetype, filePath string) {
-	fullpath := filepath.Join(configDir, "plugins", plugin, filePath)
-	if _, err := os.Stat(fullpath); err == nil {
-		AddRuntimeFile(filetype, realFile(fullpath))
-	} else {
-		fullpath = path.Join("runtime", "plugins", plugin, filePath)
-		AddRuntimeFile(filetype, assetFile(fullpath))
-	}
-}
-
-// PluginAddRuntimeFilesFromDirectory adds files from a directory to the runtime files for a plugin
-func PluginAddRuntimeFilesFromDirectory(plugin, filetype, directory, pattern string) {
-	fullpath := filepath.Join(configDir, "plugins", plugin, directory)
-	if _, err := os.Stat(fullpath); err == nil {
-		AddRuntimeFilesFromDirectory(filetype, fullpath, pattern)
-	} else {
-		fullpath = path.Join("runtime", "plugins", plugin, directory)
-		AddRuntimeFilesFromAssets(filetype, fullpath, pattern)
-	}
-}
-
-// PluginAddRuntimeFileFromMemory adds a file to the runtime files for a plugin from a given string
-func PluginAddRuntimeFileFromMemory(plugin, filetype, filename, data string) {
-	AddRuntimeFile(filetype, memoryFile{filename, []byte(data)})
-}

cmd/micro/scrollbar.go

@@ -1,20 +0,0 @@
-package main
-
-// ScrollBar represents an optional scrollbar that can be used
-type ScrollBar struct {
-	view *View
-}
-
-// Display shows the scrollbar
-func (sb *ScrollBar) Display() {
-	style := defStyle.Reverse(true)
-	screen.SetContent(sb.view.x+sb.view.Width-1, sb.view.y+sb.pos(), ' ', nil, style)
-}
-
-func (sb *ScrollBar) pos() int {
-	numlines := sb.view.Buf.NumLines
-	h := sb.view.Height
-	filepercent := float32(sb.view.Topline) / float32(numlines)
-
-	return int(filepercent * float32(h))
-}

cmd/micro/search.go

@@ -1,190 +0,0 @@
-package main
-
-import (
-	"regexp"
-	"strings"
-
-	"github.com/zyedidia/tcell"
-)
-
-var (
-	// What was the last search
-	lastSearch string
-
-	// Where should we start the search down from (or up from)
-	searchStart Loc
-
-	// Is there currently a search in progress
-	searching bool
-
-	// Stores the history for searching
-	searchHistory []string
-)
-
-// BeginSearch starts a search
-func BeginSearch(searchStr string) {
-	searchHistory = append(searchHistory, "")
-	messenger.historyNum = len(searchHistory) - 1
-	searching = true
-	messenger.response = searchStr
-	messenger.cursorx = Count(searchStr)
-	messenger.Message("Find: ")
-	messenger.hasPrompt = true
-}
-
-// EndSearch stops the current search
-func EndSearch() {
-	searchHistory[len(searchHistory)-1] = messenger.response
-	searching = false
-	messenger.hasPrompt = false
-	messenger.Clear()
-	messenger.Reset()
-	if lastSearch != "" {
-		messenger.Message("^P Previous ^N Next")
-	}
-}
-
-// ExitSearch exits the search mode, reset active search phrase, and clear status bar
-func ExitSearch(v *View) {
-	lastSearch = ""
-	searching = false
-	messenger.hasPrompt = false
-	messenger.Clear()
-	messenger.Reset()
-	v.Cursor.ResetSelection()
-}
-
-// HandleSearchEvent takes an event and a view and will do a real time match from the messenger's output
-// to the current buffer. It searches down the buffer.
-func HandleSearchEvent(event tcell.Event, v *View) {
-	switch e := event.(type) {
-	case *tcell.EventKey:
-		switch e.Key() {
-		case tcell.KeyEscape:
-			// Exit the search mode
-			ExitSearch(v)
-			return
-		case tcell.KeyEnter:
-			// If the user has pressed Enter, they want this to be the lastSearch
-			lastSearch = messenger.response
-			EndSearch()
-			return
-		case tcell.KeyCtrlQ, tcell.KeyCtrlC:
-			// Done
-			EndSearch()
-			return
-		}
-	}
-
-	messenger.HandleEvent(event, searchHistory)
-
-	if messenger.cursorx < 0 {
-		// Done
-		EndSearch()
-		return
-	}
-
-	if messenger.response == "" {
-		v.Cursor.ResetSelection()
-		// We don't end the search though
-		return
-	}
-
-	Search(messenger.response, v, true)
-
-	v.Relocate()
-
-	return
-}
-
-func searchDown(r *regexp.Regexp, v *View, start, end Loc) bool {
-	for i := start.Y; i <= end.Y; i++ {
-		var l []byte
-		var charPos int
-		if i == start.Y {
-			runes := []rune(string(v.Buf.lines[i].data))
-			l = []byte(string(runes[start.X:]))
-			charPos = start.X
-
-			if strings.Contains(r.String(), "^") && start.X != 0 {
-				continue
-			}
-		} else {
-			l = v.Buf.lines[i].data
-		}
-
-		match := r.FindIndex(l)
-
-		if match != nil {
-			v.Cursor.SetSelectionStart(Loc{charPos + runePos(match[0], string(l)), i})
-			v.Cursor.SetSelectionEnd(Loc{charPos + runePos(match[1], string(l)), i})
-			v.Cursor.OrigSelection[0] = v.Cursor.CurSelection[0]
-			v.Cursor.OrigSelection[1] = v.Cursor.CurSelection[1]
-			v.Cursor.Loc = v.Cursor.CurSelection[1]
-
-			return true
-		}
-	}
-	return false
-}
-
-func searchUp(r *regexp.Regexp, v *View, start, end Loc) bool {
-	for i := start.Y; i >= end.Y; i-- {
-		var l []byte
-		if i == start.Y {
-			runes := []rune(string(v.Buf.lines[i].data))
-			l = []byte(string(runes[:start.X]))
-
-			if strings.Contains(r.String(), "$") && start.X != Count(string(l)) {
-				continue
-			}
-		} else {
-			l = v.Buf.lines[i].data
-		}
-
-		match := r.FindIndex(l)
-
-		if match != nil {
-			v.Cursor.SetSelectionStart(Loc{runePos(match[0], string(l)), i})
-			v.Cursor.SetSelectionEnd(Loc{runePos(match[1], string(l)), i})
-			v.Cursor.OrigSelection[0] = v.Cursor.CurSelection[0]
-			v.Cursor.OrigSelection[1] = v.Cursor.CurSelection[1]
-			v.Cursor.Loc = v.Cursor.CurSelection[1]
-
-			return true
-		}
-	}
-	return false
-}
-
-// Search searches in the view for the given regex. The down bool
-// specifies whether it should search down from the searchStart position
-// or up from there
-func Search(searchStr string, v *View, down bool) {
-	if searchStr == "" {
-		return
-	}
-	r, err := regexp.Compile(searchStr)
-	if v.Buf.Settings["ignorecase"].(bool) {
-		r, err = regexp.Compile("(?i)" + searchStr)
-	}
-	if err != nil {
-		return
-	}
-
-	var found bool
-	if down {
-		found = searchDown(r, v, searchStart, v.Buf.End())
-		if !found {
-			found = searchDown(r, v, v.Buf.Start(), searchStart)
-		}
-	} else {
-		found = searchUp(r, v, searchStart, v.Buf.Start())
-		if !found {
-			found = searchUp(r, v, v.Buf.End(), searchStart)
-		}
-	}
-	if !found {
-		v.Cursor.ResetSelection()
-	}
-}

cmd/micro/settings.go

@@ -1,539 +0,0 @@
-package main
-
-import (
-	"crypto/md5"
-	"encoding/json"
-	"errors"
-	"io"
-	"io/ioutil"
-	"os"
-	"reflect"
-	"strconv"
-	"strings"
-	"sync"
-
-	"github.com/flynn/json5"
-	"github.com/zyedidia/glob"
-)
-
-type optionValidator func(string, interface{}) error
-
-// The options that the user can set
-var globalSettings map[string]interface{}
-
-var invalidSettings bool
-
-// Options with validators
-var optionValidators = map[string]optionValidator{
-	"tabsize":      validatePositiveValue,
-	"scrollmargin": validateNonNegativeValue,
-	"scrollspeed":  validateNonNegativeValue,
-	"colorscheme":  validateColorscheme,
-	"colorcolumn":  validateNonNegativeValue,
-	"fileformat":   validateLineEnding,
-}
-
-// InitGlobalSettings initializes the options map and sets all options to their default values
-func InitGlobalSettings() {
-	invalidSettings = false
-	defaults := DefaultGlobalSettings()
-	var parsed map[string]interface{}
-
-	filename := configDir + "/settings.json"
-	writeSettings := false
-	if _, e := os.Stat(filename); e == nil {
-		input, err := ioutil.ReadFile(filename)
-		if !strings.HasPrefix(string(input), "null") {
-			if err != nil {
-				TermMessage("Error reading settings.json file: " + err.Error())
-				invalidSettings = true
-				return
-			}
-
-			err = json5.Unmarshal(input, &parsed)
-			if err != nil {
-				TermMessage("Error reading settings.json:", err.Error())
-				invalidSettings = true
-			}
-		} else {
-			writeSettings = true
-		}
-	}
-
-	globalSettings = make(map[string]interface{})
-	for k, v := range defaults {
-		globalSettings[k] = v
-	}
-	for k, v := range parsed {
-		if !strings.HasPrefix(reflect.TypeOf(v).String(), "map") {
-			globalSettings[k] = v
-		}
-	}
-
-	if _, err := os.Stat(filename); os.IsNotExist(err) || writeSettings {
-		err := WriteSettings(filename)
-		if err != nil {
-			TermMessage("Error writing settings.json file: " + err.Error())
-		}
-	}
-}
-
-// InitLocalSettings scans the json in settings.json and sets the options locally based
-// on whether the buffer matches the glob
-func InitLocalSettings(buf *Buffer) {
-	invalidSettings = false
-	var parsed map[string]interface{}
-
-	filename := configDir + "/settings.json"
-	if _, e := os.Stat(filename); e == nil {
-		input, err := ioutil.ReadFile(filename)
-		if err != nil {
-			TermMessage("Error reading settings.json file: " + err.Error())
-			invalidSettings = true
-			return
-		}
-
-		err = json5.Unmarshal(input, &parsed)
-		if err != nil {
-			TermMessage("Error reading settings.json:", err.Error())
-			invalidSettings = true
-		}
-	}
-
-	for k, v := range parsed {
-		if strings.HasPrefix(reflect.TypeOf(v).String(), "map") {
-			if strings.HasPrefix(k, "ft:") {
-				if buf.Settings["filetype"].(string) == k[3:] {
-					for k1, v1 := range v.(map[string]interface{}) {
-						buf.Settings[k1] = v1
-					}
-				}
-			} else {
-				g, err := glob.Compile(k)
-				if err != nil {
-					TermMessage("Error with glob setting ", k, ": ", err)
-					continue
-				}
-
-				if g.MatchString(buf.Path) {
-					for k1, v1 := range v.(map[string]interface{}) {
-						buf.Settings[k1] = v1
-					}
-				}
-			}
-		}
-	}
-}
-
-// WriteSettings writes the settings to the specified filename as JSON
-func WriteSettings(filename string) error {
-	if invalidSettings {
-		// Do not write the settings if there was an error when reading them
-		return nil
-	}
-
-	var err error
-	if _, e := os.Stat(configDir); e == nil {
-		parsed := make(map[string]interface{})
-
-		filename := configDir + "/settings.json"
-		for k, v := range globalSettings {
-			parsed[k] = v
-		}
-		if _, e := os.Stat(filename); e == nil {
-			input, err := ioutil.ReadFile(filename)
-			if string(input) != "null" {
-				if err != nil {
-					return err
-				}
-
-				err = json5.Unmarshal(input, &parsed)
-				if err != nil {
-					TermMessage("Error reading settings.json:", err.Error())
-					invalidSettings = true
-				}
-
-				for k, v := range parsed {
-					if !strings.HasPrefix(reflect.TypeOf(v).String(), "map") {
-						if _, ok := globalSettings[k]; ok {
-							parsed[k] = globalSettings[k]
-						}
-					}
-				}
-			}
-		}
-
-		txt, _ := json.MarshalIndent(parsed, "", "    ")
-		err = ioutil.WriteFile(filename, append(txt, '\n'), 0644)
-	}
-	return err
-}
-
-// AddOption creates a new option. This is meant to be called by plugins to add options.
-func AddOption(name string, value interface{}) {
-	globalSettings[name] = value
-	err := WriteSettings(configDir + "/settings.json")
-	if err != nil {
-		TermMessage("Error writing settings.json file: " + err.Error())
-	}
-}
-
-// GetGlobalOption returns the global value of the given option
-func GetGlobalOption(name string) interface{} {
-	return globalSettings[name]
-}
-
-// GetLocalOption returns the local value of the given option
-func GetLocalOption(name string, buf *Buffer) interface{} {
-	return buf.Settings[name]
-}
-
-// GetOption returns the value of the given option
-// If there is a local version of the option, it returns that
-// otherwise it will return the global version
-func GetOption(name string) interface{} {
-	if GetLocalOption(name, CurView().Buf) != nil {
-		return GetLocalOption(name, CurView().Buf)
-	}
-	return GetGlobalOption(name)
-}
-
-// DefaultGlobalSettings returns the default global settings for micro
-// Note that colorscheme is a global only option
-func DefaultGlobalSettings() map[string]interface{} {
-	return map[string]interface{}{
-		"autoindent":     true,
-		"autosave":       false,
-		"basename":       false,
-		"colorcolumn":    float64(0),
-		"colorscheme":    "default",
-		"cursorline":     true,
-		"eofnewline":     false,
-		"fastdirty":      true,
-		"fileformat":     "unix",
-		"hidehelp":       false,
-		"ignorecase":     false,
-		"indentchar":     " ",
-		"infobar":        true,
-		"keepautoindent": false,
-		"keymenu":        false,
-		"matchbrace":     false,
-		"matchbraceleft": false,
-		"mouse":          true,
-		"pluginchannels": []string{"https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json"},
-		"pluginrepos":    []string{},
-		"rmtrailingws":   false,
-		"ruler":          true,
-		"savecursor":     false,
-		"savehistory":    true,
-		"saveundo":       false,
-		"scrollbar":      false,
-		"scrollmargin":   float64(3),
-		"scrollspeed":    float64(2),
-		"softwrap":       false,
-		"splitbottom":    true,
-		"splitright":     true,
-		"statusline":     true,
-		"sucmd":          "sudo",
-		"syntax":         true,
-		"tabmovement":    false,
-		"tabsize":        float64(4),
-		"tabstospaces":   false,
-		"termtitle":      false,
-		"useprimary":     true,
-	}
-}
-
-// DefaultLocalSettings returns the default local settings
-// Note that filetype is a local only option
-func DefaultLocalSettings() map[string]interface{} {
-	return map[string]interface{}{
-		"autoindent":     true,
-		"autosave":       false,
-		"basename":       false,
-		"colorcolumn":    float64(0),
-		"cursorline":     true,
-		"eofnewline":     false,
-		"fastdirty":      true,
-		"fileformat":     "unix",
-		"filetype":       "Unknown",
-		"hidehelp":       false,
-		"ignorecase":     false,
-		"indentchar":     " ",
-		"keepautoindent": false,
-		"matchbrace":     false,
-		"matchbraceleft": false,
-		"rmtrailingws":   false,
-		"ruler":          true,
-		"savecursor":     false,
-		"saveundo":       false,
-		"scrollbar":      false,
-		"scrollmargin":   float64(3),
-		"scrollspeed":    float64(2),
-		"softwrap":       false,
-		"splitbottom":    true,
-		"splitright":     true,
-		"statusline":     true,
-		"syntax":         true,
-		"tabmovement":    false,
-		"tabsize":        float64(4),
-		"tabstospaces":   false,
-		"useprimary":     true,
-	}
-}
-
-// SetOption attempts to set the given option to the value
-// By default it will set the option as global, but if the option
-// is local only it will set the local version
-// Use setlocal to force an option to be set locally
-func SetOption(option, value string) error {
-	if _, ok := globalSettings[option]; !ok {
-		if _, ok := CurView().Buf.Settings[option]; !ok {
-			return errors.New("Invalid option")
-		}
-		SetLocalOption(option, value, CurView())
-		return nil
-	}
-
-	var nativeValue interface{}
-
-	kind := reflect.TypeOf(globalSettings[option]).Kind()
-	if kind == reflect.Bool {
-		b, err := ParseBool(value)
-		if err != nil {
-			return errors.New("Invalid value")
-		}
-		nativeValue = b
-	} else if kind == reflect.String {
-		nativeValue = value
-	} else if kind == reflect.Float64 {
-		i, err := strconv.Atoi(value)
-		if err != nil {
-			return errors.New("Invalid value")
-		}
-		nativeValue = float64(i)
-	} else {
-		return errors.New("Option has unsupported value type")
-	}
-
-	if err := optionIsValid(option, nativeValue); err != nil {
-		return err
-	}
-
-	globalSettings[option] = nativeValue
-
-	if option == "colorscheme" {
-		// LoadSyntaxFiles()
-		InitColorscheme()
-		for _, tab := range tabs {
-			for _, view := range tab.Views {
-				view.Buf.UpdateRules()
-			}
-		}
-	}
-
-	if option == "infobar" || option == "keymenu" {
-		for _, tab := range tabs {
-			tab.Resize()
-		}
-	}
-
-	if option == "mouse" {
-		if !nativeValue.(bool) {
-			screen.DisableMouse()
-		} else {
-			screen.EnableMouse()
-		}
-	}
-
-	if len(tabs) != 0 {
-		if _, ok := CurView().Buf.Settings[option]; ok {
-			for _, tab := range tabs {
-				for _, view := range tab.Views {
-					SetLocalOption(option, value, view)
-				}
-			}
-		}
-	}
-
-	return nil
-}
-
-// SetLocalOption sets the local version of this option
-func SetLocalOption(option, value string, view *View) error {
-	buf := view.Buf
-	if _, ok := buf.Settings[option]; !ok {
-		return errors.New("Invalid option")
-	}
-
-	var nativeValue interface{}
-
-	kind := reflect.TypeOf(buf.Settings[option]).Kind()
-	if kind == reflect.Bool {
-		b, err := ParseBool(value)
-		if err != nil {
-			return errors.New("Invalid value")
-		}
-		nativeValue = b
-	} else if kind == reflect.String {
-		nativeValue = value
-	} else if kind == reflect.Float64 {
-		i, err := strconv.Atoi(value)
-		if err != nil {
-			return errors.New("Invalid value")
-		}
-		nativeValue = float64(i)
-	} else {
-		return errors.New("Option has unsupported value type")
-	}
-
-	if err := optionIsValid(option, nativeValue); err != nil {
-		return err
-	}
-
-	if option == "fastdirty" {
-		// If it is being turned off, we have to hash every open buffer
-		var empty [md5.Size]byte
-		var wg sync.WaitGroup
-
-		for _, tab := range tabs {
-			for _, v := range tab.Views {
-				if !nativeValue.(bool) {
-					if v.Buf.origHash == empty {
-						wg.Add(1)
-
-						go func(b *Buffer) { // calculate md5 hash of the file
-							defer wg.Done()
-
-							if file, e := os.Open(b.AbsPath); e == nil {
-								defer file.Close()
-
-								h := md5.New()
-
-								if _, e = io.Copy(h, file); e == nil {
-									h.Sum(b.origHash[:0])
-								}
-							}
-						}(v.Buf)
-					}
-				} else {
-					v.Buf.IsModified = v.Buf.Modified()
-				}
-			}
-		}
-
-		wg.Wait()
-	}
-
-	buf.Settings[option] = nativeValue
-
-	if option == "statusline" {
-		view.ToggleStatusLine()
-	}
-
-	if option == "filetype" {
-		// LoadSyntaxFiles()
-		InitColorscheme()
-		buf.UpdateRules()
-	}
-
-	if option == "fileformat" {
-		buf.IsModified = true
-	}
-
-	if option == "syntax" {
-		if !nativeValue.(bool) {
-			buf.ClearMatches()
-		} else {
-			if buf.highlighter != nil {
-				buf.highlighter.HighlightStates(buf)
-			}
-		}
-	}
-
-	return nil
-}
-
-// SetOptionAndSettings sets the given option and saves the option setting to the settings config file
-func SetOptionAndSettings(option, value string) {
-	filename := configDir + "/settings.json"
-
-	err := SetOption(option, value)
-
-	if err != nil {
-		messenger.Error(err.Error())
-		return
-	}
-
-	err = WriteSettings(filename)
-	if err != nil {
-		messenger.Error("Error writing to settings.json: " + err.Error())
-		return
-	}
-}
-
-func optionIsValid(option string, value interface{}) error {
-	if validator, ok := optionValidators[option]; ok {
-		return validator(option, value)
-	}
-
-	return nil
-}
-
-// Option validators
-
-func validatePositiveValue(option string, value interface{}) error {
-	tabsize, ok := value.(float64)
-
-	if !ok {
-		return errors.New("Expected numeric type for " + option)
-	}
-
-	if tabsize < 1 {
-		return errors.New(option + " must be greater than 0")
-	}
-
-	return nil
-}
-
-func validateNonNegativeValue(option string, value interface{}) error {
-	nativeValue, ok := value.(float64)
-
-	if !ok {
-		return errors.New("Expected numeric type for " + option)
-	}
-
-	if nativeValue < 0 {
-		return errors.New(option + " must be non-negative")
-	}
-
-	return nil
-}
-
-func validateColorscheme(option string, value interface{}) error {
-	colorscheme, ok := value.(string)
-
-	if !ok {
-		return errors.New("Expected string type for colorscheme")
-	}
-
-	if !ColorschemeExists(colorscheme) {
-		return errors.New(colorscheme + " is not a valid colorscheme")
-	}
-
-	return nil
-}
-
-func validateLineEnding(option string, value interface{}) error {
-	endingType, ok := value.(string)
-
-	if !ok {
-		return errors.New("Expected string type for file format")
-	}
-
-	if endingType != "unix" && endingType != "dos" {
-		return errors.New("File format must be either 'unix' or 'dos'")
-	}
-
-	return nil
-}

cmd/micro/shell_supported.go

@@ -1,18 +0,0 @@
-// +build linux darwin dragonfly openbsd_amd64 freebsd
-
-package main
-
-import (
-	"github.com/zyedidia/micro/cmd/micro/shellwords"
-)
-
-const TermEmuSupported = true
-
-func RunTermEmulator(input string, wait bool, getOutput bool, callback string) error {
-	args, err := shellwords.Split(input)
-	if err != nil {
-		return err
-	}
-	err = CurView().StartTerminal(args, wait, getOutput, callback)
-	return err
-}

cmd/micro/shell_unsupported.go

@@ -1,11 +0,0 @@
-// +build !linux,!darwin,!freebsd,!dragonfly,!openbsd_amd64
-
-package main
-
-import "errors"
-
-const TermEmuSupported = false
-
-func RunTermEmulator(input string, wait bool, getOutput bool) error {
-	return errors.New("Unsupported operating system")
-}

cmd/micro/shellwords/LICENSE

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2017 Yasuhiro Matsumoto
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.

cmd/micro/shellwords/README.md

@@ -1,49 +0,0 @@
-This is a modified version of `go-shellwords` for the micro editor.
-
-# go-shellwords
-
-[![Coverage Status](https://coveralls.io/repos/mattn/go-shellwords/badge.png?branch=master)](https://coveralls.io/r/mattn/go-shellwords?branch=master)
-[![Build Status](https://travis-ci.org/mattn/go-shellwords.svg?branch=master)](https://travis-ci.org/mattn/go-shellwords)
-
-Parse line as shell words.
-
-## Usage
-
-```go
-args, err := shellwords.Parse("./foo --bar=baz")
-// args should be ["./foo", "--bar=baz"]
-```
-
-```go
-os.Setenv("FOO", "bar")
-p := shellwords.NewParser()
-p.ParseEnv = true
-args, err := p.Parse("./foo $FOO")
-// args should be ["./foo", "bar"]
-```
-
-```go
-p := shellwords.NewParser()
-p.ParseBacktick = true
-args, err := p.Parse("./foo `echo $SHELL`")
-// args should be ["./foo", "/bin/bash"]
-```
-
-```go
-shellwords.ParseBacktick = true
-p := shellwords.NewParser()
-args, err := p.Parse("./foo `echo $SHELL`")
-// args should be ["./foo", "/bin/bash"]
-```
-
-# Thanks
-
-This is based on cpan module [Parse::CommandLine](https://metacpan.org/pod/Parse::CommandLine).
-
-# License
-
-under the MIT License: http://mattn.mit-license.org/2017
-
-# Author
-
-Yasuhiro Matsumoto (a.k.a mattn)

cmd/micro/shellwords/shellwords.go

@@ -1,180 +0,0 @@
-package shellwords
-
-import (
-	"bytes"
-	"errors"
-	"os"
-	"regexp"
-)
-
-var envRe = regexp.MustCompile(`\$({[a-zA-Z0-9_]+}|[a-zA-Z0-9_]+)`)
-
-func isSpace(r rune) bool {
-	switch r {
-	case ' ', '\t', '\r', '\n':
-		return true
-	}
-	return false
-}
-
-func replaceEnv(s string) string {
-	return envRe.ReplaceAllStringFunc(s, func(s string) string {
-		s = s[1:]
-		if s[0] == '{' {
-			s = s[1 : len(s)-1]
-		}
-		return os.Getenv(s)
-	})
-}
-
-type Parser struct {
-	Position int
-}
-
-func NewParser() *Parser {
-	return &Parser{0}
-}
-
-func (p *Parser) Parse(line string) ([]string, error) {
-	args := []string{}
-	buf := ""
-	var escaped, doubleQuoted, singleQuoted, backQuote, dollarQuote bool
-	backtick := ""
-
-	pos := -1
-	got := false
-
-loop:
-	for i, r := range line {
-		if escaped {
-			buf += string(r)
-			escaped = false
-			continue
-		}
-
-		if r == '\\' {
-			if singleQuoted {
-				buf += string(r)
-			} else {
-				escaped = true
-			}
-			continue
-		}
-
-		if isSpace(r) {
-			if singleQuoted || doubleQuoted || backQuote || dollarQuote {
-				buf += string(r)
-				backtick += string(r)
-			} else if got {
-				buf = replaceEnv(buf)
-				args = append(args, buf)
-				buf = ""
-				got = false
-			}
-			continue
-		}
-
-		switch r {
-		case '`':
-			if !singleQuoted && !doubleQuoted && !dollarQuote {
-				if backQuote {
-					out, err := shellRun(backtick)
-					if err != nil {
-						return nil, err
-					}
-					buf = out
-				}
-				backtick = ""
-				backQuote = !backQuote
-				continue
-				backtick = ""
-				backQuote = !backQuote
-			}
-		case ')':
-			if !singleQuoted && !doubleQuoted && !backQuote {
-				if dollarQuote {
-					out, err := shellRun(backtick)
-					if err != nil {
-						return nil, err
-					}
-					buf = out
-				}
-				backtick = ""
-				dollarQuote = !dollarQuote
-				continue
-				backtick = ""
-				dollarQuote = !dollarQuote
-			}
-		case '(':
-			if !singleQuoted && !doubleQuoted && !backQuote {
-				if !dollarQuote && len(buf) > 0 && buf == "$" {
-					dollarQuote = true
-					buf += "("
-					continue
-				} else {
-					return nil, errors.New("invalid command line string")
-				}
-			}
-		case '"':
-			if !singleQuoted && !dollarQuote {
-				doubleQuoted = !doubleQuoted
-				continue
-			}
-		case '\'':
-			if !doubleQuoted && !dollarQuote {
-				singleQuoted = !singleQuoted
-				continue
-			}
-		case ';', '&', '|', '<', '>':
-			if !(escaped || singleQuoted || doubleQuoted || backQuote) {
-				pos = i
-				break loop
-			}
-		}
-
-		got = true
-		buf += string(r)
-		if backQuote || dollarQuote {
-			backtick += string(r)
-		}
-	}
-
-	buf = replaceEnv(buf)
-	args = append(args, buf)
-
-	if escaped || singleQuoted || doubleQuoted || backQuote || dollarQuote {
-		return nil, errors.New("invalid command line string")
-	}
-
-	p.Position = pos
-
-	return args, nil
-}
-
-func Split(line string) ([]string, error) {
-	return NewParser().Parse(line)
-}
-
-func Join(args ...string) string {
-	var buf bytes.Buffer
-	for i, w := range args {
-		if i != 0 {
-			buf.WriteByte(' ')
-		}
-		if w == "" {
-			buf.WriteString("''")
-			continue
-		}
-
-		for _, b := range w {
-			switch b {
-			case ' ', '\t', '\r', '\n':
-				buf.WriteByte('\\')
-				buf.WriteString(string(b))
-			default:
-				buf.WriteString(string(b))
-			}
-		}
-	}
-	return buf.String()
-}

cmd/micro/shellwords/shellwords_test.go

@@ -1,229 +0,0 @@
-package shellwords
-
-import (
-	"os"
-	"reflect"
-	"testing"
-)
-
-var testcases = []struct {
-	line     string
-	expected []string
-}{
-	{`var --bar=baz`, []string{`var`, `--bar=baz`}},
-	{`var --bar="baz"`, []string{`var`, `--bar=baz`}},
-	{`var "--bar=baz"`, []string{`var`, `--bar=baz`}},
-	{`var "--bar='baz'"`, []string{`var`, `--bar='baz'`}},
-	{"var --bar=`baz`", []string{`var`, "--bar=`baz`"}},
-	{`var "--bar=\"baz'"`, []string{`var`, `--bar="baz'`}},
-	{`var "--bar=\'baz\'"`, []string{`var`, `--bar='baz'`}},
-	{`var --bar='\'`, []string{`var`, `--bar=\`}},
-	{`var "--bar baz"`, []string{`var`, `--bar baz`}},
-	{`var --"bar baz"`, []string{`var`, `--bar baz`}},
-	{`var  --"bar baz"`, []string{`var`, `--bar baz`}},
-}
-
-func TestSimple(t *testing.T) {
-	for _, testcase := range testcases {
-		args, err := Parse(testcase.line)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !reflect.DeepEqual(args, testcase.expected) {
-			t.Fatalf("Expected %#v, but %#v:", testcase.expected, args)
-		}
-	}
-}
-
-func TestError(t *testing.T) {
-	_, err := Parse("foo '")
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	_, err = Parse(`foo "`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-
-	_, err = Parse("foo `")
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-}
-
-func TestLastSpace(t *testing.T) {
-	args, err := Parse("foo bar\\  ")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(args) != 2 {
-		t.Fatal("Should have two elements")
-	}
-	if args[0] != "foo" {
-		t.Fatal("1st element should be `foo`")
-	}
-	if args[1] != "bar " {
-		t.Fatal("1st element should be `bar `")
-	}
-}
-
-func TestBacktick(t *testing.T) {
-	goversion, err := shellRun("go version")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	parser := NewParser()
-	parser.ParseBacktick = true
-	args, err := parser.Parse("echo `go version`")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected := []string{"echo", goversion}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-
-	args, err = parser.Parse(`echo $(echo foo)`)
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected = []string{"echo", "foo"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-
-	parser.ParseBacktick = false
-	args, err = parser.Parse(`echo $(echo "foo")`)
-	expected = []string{"echo", `$(echo "foo")`}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-	args, err = parser.Parse("echo $(`echo1)")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected = []string{"echo", "$(`echo1)"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-}
-
-func TestBacktickError(t *testing.T) {
-	parser := NewParser()
-	parser.ParseBacktick = true
-	_, err := parser.Parse("echo `go Version`")
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	expected := "exit status 2:go: unknown subcommand \"Version\"\nRun 'go help' for usage.\n"
-	if expected != err.Error() {
-		t.Fatalf("Expected %q, but %q", expected, err.Error())
-	}
-	_, err = parser.Parse(`echo $(echo1)`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	_, err = parser.Parse(`echo $(echo1`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	_, err = parser.Parse(`echo $ (echo1`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	_, err = parser.Parse(`echo (echo1`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-	_, err = parser.Parse(`echo )echo1`)
-	if err == nil {
-		t.Fatal("Should be an error")
-	}
-}
-
-func TestEnv(t *testing.T) {
-	os.Setenv("FOO", "bar")
-
-	parser := NewParser()
-	parser.ParseEnv = true
-	args, err := parser.Parse("echo $FOO")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected := []string{"echo", "bar"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-}
-
-func TestNoEnv(t *testing.T) {
-	parser := NewParser()
-	parser.ParseEnv = true
-	args, err := parser.Parse("echo $BAR")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected := []string{"echo", ""}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-}
-
-func TestDupEnv(t *testing.T) {
-	os.Setenv("FOO", "bar")
-	os.Setenv("FOO_BAR", "baz")
-
-	parser := NewParser()
-	parser.ParseEnv = true
-	args, err := parser.Parse("echo $$FOO$")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected := []string{"echo", "$bar$"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-
-	args, err = parser.Parse("echo $${FOO_BAR}$")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expected = []string{"echo", "$baz$"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-}
-
-func TestHaveMore(t *testing.T) {
-	parser := NewParser()
-	parser.ParseEnv = true
-
-	line := "echo foo; seq 1 10"
-	args, err := parser.Parse(line)
-	if err != nil {
-		t.Fatalf(err.Error())
-	}
-	expected := []string{"echo", "foo"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-
-	if parser.Position == 0 {
-		t.Fatalf("Commands should be remaining")
-	}
-
-	line = string([]rune(line)[parser.Position+1:])
-	args, err = parser.Parse(line)
-	if err != nil {
-		t.Fatalf(err.Error())
-	}
-	expected = []string{"seq", "1", "10"}
-	if !reflect.DeepEqual(args, expected) {
-		t.Fatalf("Expected %#v, but %#v:", expected, args)
-	}
-
-	if parser.Position > 0 {
-		t.Fatalf("Commands should not be remaining")
-	}
-}

cmd/micro/shellwords/util_posix.go

@@ -1,22 +0,0 @@
-// +build !windows
-
-package shellwords
-
-import (
-	"errors"
-	"os"
-	"os/exec"
-	"strings"
-)
-
-func shellRun(line string) (string, error) {
-	shell := os.Getenv("SHELL")
-	b, err := exec.Command(shell, "-c", line).Output()
-	if err != nil {
-		if eerr, ok := err.(*exec.ExitError); ok {
-			b = eerr.Stderr
-		}
-		return "", errors.New(err.Error() + ":" + string(b))
-	}
-	return strings.TrimSpace(string(b)), nil
-}

cmd/micro/shellwords/util_windows.go

@@ -1,20 +0,0 @@
-package shellwords
-
-import (
-	"errors"
-	"os"
-	"os/exec"
-	"strings"
-)
-
-func shellRun(line string) (string, error) {
-	shell := os.Getenv("COMSPEC")
-	b, err := exec.Command(shell, "/c", line).Output()
-	if err != nil {
-		if eerr, ok := err.(*exec.ExitError); ok {
-			b = eerr.Stderr
-		}
-		return "", errors.New(err.Error() + ":" + string(b))
-	}
-	return strings.TrimSpace(string(b)), nil
-}

cmd/micro/split_tree.go

@@ -1,317 +0,0 @@
-package main
-
-// SplitType specifies whether a split is horizontal or vertical
-type SplitType bool
-
-const (
-	// VerticalSplit type
-	VerticalSplit = false
-	// HorizontalSplit type
-	HorizontalSplit = true
-)
-
-// A Node on the split tree
-type Node interface {
-	VSplit(buf *Buffer, splitIndex int)
-	HSplit(buf *Buffer, splitIndex int)
-	String() string
-}
-
-// A LeafNode is an actual split so it contains a view
-type LeafNode struct {
-	view *View
-
-	parent *SplitTree
-}
-
-// NewLeafNode returns a new leaf node containing the given view
-func NewLeafNode(v *View, parent *SplitTree) *LeafNode {
-	n := new(LeafNode)
-	n.view = v
-	n.view.splitNode = n
-	n.parent = parent
-	return n
-}
-
-// A SplitTree is a Node itself and it contains other nodes
-type SplitTree struct {
-	kind SplitType
-
-	parent   *SplitTree
-	children []Node
-
-	x int
-	y int
-
-	width      int
-	height     int
-	lockWidth  bool
-	lockHeight bool
-
-	tabNum int
-}
-
-// VSplit creates a vertical split
-func (l *LeafNode) VSplit(buf *Buffer, splitIndex int) {
-	if splitIndex < 0 {
-		splitIndex = 0
-	}
-
-	tab := tabs[l.parent.tabNum]
-	if l.parent.kind == VerticalSplit {
-		if splitIndex > len(l.parent.children) {
-			splitIndex = len(l.parent.children)
-		}
-
-		newView := NewView(buf)
-		newView.TabNum = l.parent.tabNum
-
-		l.parent.children = append(l.parent.children, nil)
-		copy(l.parent.children[splitIndex+1:], l.parent.children[splitIndex:])
-		l.parent.children[splitIndex] = NewLeafNode(newView, l.parent)
-
-		tab.Views = append(tab.Views, nil)
-		copy(tab.Views[splitIndex+1:], tab.Views[splitIndex:])
-		tab.Views[splitIndex] = newView
-
-		tab.CurView = splitIndex
-	} else {
-		if splitIndex > 1 {
-			splitIndex = 1
-		}
-
-		s := new(SplitTree)
-		s.kind = VerticalSplit
-		s.parent = l.parent
-		s.tabNum = l.parent.tabNum
-		newView := NewView(buf)
-		newView.TabNum = l.parent.tabNum
-		if splitIndex == 1 {
-			s.children = []Node{l, NewLeafNode(newView, s)}
-		} else {
-			s.children = []Node{NewLeafNode(newView, s), l}
-		}
-		l.parent.children[search(l.parent.children, l)] = s
-		l.parent = s
-
-		tab.Views = append(tab.Views, nil)
-		copy(tab.Views[splitIndex+1:], tab.Views[splitIndex:])
-		tab.Views[splitIndex] = newView
-
-		tab.CurView = splitIndex
-	}
-
-	tab.Resize()
-}
-
-// HSplit creates a horizontal split
-func (l *LeafNode) HSplit(buf *Buffer, splitIndex int) {
-	if splitIndex < 0 {
-		splitIndex = 0
-	}
-
-	tab := tabs[l.parent.tabNum]
-	if l.parent.kind == HorizontalSplit {
-		if splitIndex > len(l.parent.children) {
-			splitIndex = len(l.parent.children)
-		}
-
-		newView := NewView(buf)
-		newView.TabNum = l.parent.tabNum
-
-		l.parent.children = append(l.parent.children, nil)
-		copy(l.parent.children[splitIndex+1:], l.parent.children[splitIndex:])
-		l.parent.children[splitIndex] = NewLeafNode(newView, l.parent)
-
-		tab.Views = append(tab.Views, nil)
-		copy(tab.Views[splitIndex+1:], tab.Views[splitIndex:])
-		tab.Views[splitIndex] = newView
-
-		tab.CurView = splitIndex
-	} else {
-		if splitIndex > 1 {
-			splitIndex = 1
-		}
-
-		s := new(SplitTree)
-		s.kind = HorizontalSplit
-		s.tabNum = l.parent.tabNum
-		s.parent = l.parent
-		newView := NewView(buf)
-		newView.TabNum = l.parent.tabNum
-		newView.Num = len(tab.Views)
-		if splitIndex == 1 {
-			s.children = []Node{l, NewLeafNode(newView, s)}
-		} else {
-			s.children = []Node{NewLeafNode(newView, s), l}
-		}
-		l.parent.children[search(l.parent.children, l)] = s
-		l.parent = s
-
-		tab.Views = append(tab.Views, nil)
-		copy(tab.Views[splitIndex+1:], tab.Views[splitIndex:])
-		tab.Views[splitIndex] = newView
-
-		tab.CurView = splitIndex
-	}
-
-	tab.Resize()
-}
-
-// Delete deletes a split
-func (l *LeafNode) Delete() {
-	i := search(l.parent.children, l)
-
-	copy(l.parent.children[i:], l.parent.children[i+1:])
-	l.parent.children[len(l.parent.children)-1] = nil
-	l.parent.children = l.parent.children[:len(l.parent.children)-1]
-
-	tab := tabs[l.parent.tabNum]
-	j := findView(tab.Views, l.view)
-	copy(tab.Views[j:], tab.Views[j+1:])
-	tab.Views[len(tab.Views)-1] = nil // or the zero value of T
-	tab.Views = tab.Views[:len(tab.Views)-1]
-
-	for i, v := range tab.Views {
-		v.Num = i
-	}
-	if tab.CurView > 0 {
-		tab.CurView--
-	}
-}
-
-// Cleanup rearranges all the parents after a split has been deleted
-func (s *SplitTree) Cleanup() {
-	for i, node := range s.children {
-		if n, ok := node.(*SplitTree); ok {
-			if len(n.children) == 1 {
-				if child, ok := n.children[0].(*LeafNode); ok {
-					s.children[i] = child
-					child.parent = s
-					continue
-				}
-			}
-			n.Cleanup()
-		}
-	}
-}
-
-// ResizeSplits resizes all the splits correctly
-func (s *SplitTree) ResizeSplits() {
-	lockedWidth := 0
-	lockedHeight := 0
-	lockedChildren := 0
-	for _, node := range s.children {
-		if n, ok := node.(*LeafNode); ok {
-			if s.kind == VerticalSplit {
-				if n.view.LockWidth {
-					lockedWidth += n.view.Width
-					lockedChildren++
-				}
-			} else {
-				if n.view.LockHeight {
-					lockedHeight += n.view.Height
-					lockedChildren++
-				}
-			}
-		} else if n, ok := node.(*SplitTree); ok {
-			if s.kind == VerticalSplit {
-				if n.lockWidth {
-					lockedWidth += n.width
-					lockedChildren++
-				}
-			} else {
-				if n.lockHeight {
-					lockedHeight += n.height
-					lockedChildren++
-				}
-			}
-		}
-	}
-	x, y := 0, 0
-	for _, node := range s.children {
-		if n, ok := node.(*LeafNode); ok {
-			if s.kind == VerticalSplit {
-				if !n.view.LockWidth {
-					n.view.Width = (s.width - lockedWidth) / (len(s.children) - lockedChildren)
-				}
-				n.view.Height = s.height
-
-				n.view.x = s.x + x
-				n.view.y = s.y
-				x += n.view.Width
-			} else {
-				if !n.view.LockHeight {
-					n.view.Height = (s.height - lockedHeight) / (len(s.children) - lockedChildren)
-				}
-				n.view.Width = s.width
-
-				n.view.y = s.y + y
-				n.view.x = s.x
-				y += n.view.Height
-			}
-			if n.view.Buf.Settings["statusline"].(bool) {
-				n.view.Height--
-			}
-
-			n.view.ToggleTabbar()
-		} else if n, ok := node.(*SplitTree); ok {
-			if s.kind == VerticalSplit {
-				if !n.lockWidth {
-					n.width = (s.width - lockedWidth) / (len(s.children) - lockedChildren)
-				}
-				n.height = s.height
-
-				n.x = s.x + x
-				n.y = s.y
-				x += n.width
-			} else {
-				if !n.lockHeight {
-					n.height = (s.height - lockedHeight) / (len(s.children) - lockedChildren)
-				}
-				n.width = s.width
-
-				n.y = s.y + y
-				n.x = s.x
-				y += n.height
-			}
-			n.ResizeSplits()
-		}
-	}
-}
-
-func (l *LeafNode) String() string {
-	return l.view.Buf.GetName()
-}
-
-func search(haystack []Node, needle Node) int {
-	for i, x := range haystack {
-		if x == needle {
-			return i
-		}
-	}
-	return 0
-}
-
-func findView(haystack []*View, needle *View) int {
-	for i, x := range haystack {
-		if x == needle {
-			return i
-		}
-	}
-	return 0
-}
-
-// VSplit is here just to make SplitTree fit the Node interface
-func (s *SplitTree) VSplit(buf *Buffer, splitIndex int) {}
-
-// HSplit is here just to make SplitTree fit the Node interface
-func (s *SplitTree) HSplit(buf *Buffer, splitIndex int) {}
-
-func (s *SplitTree) String() string {
-	str := "["
-	for _, child := range s.children {
-		str += child.String() + ", "
-	}
-	return str + "]"
-}

cmd/micro/statusline.go

@@ -1,98 +0,0 @@
-package main
-
-import (
-	"path"
-	"strconv"
-)
-
-// Statusline represents the information line at the bottom
-// of each view
-// It gives information such as filename, whether the file has been
-// modified, filetype, cursor location
-type Statusline struct {
-	view *View
-}
-
-// Display draws the statusline to the screen
-func (sline *Statusline) Display() {
-	if messenger.hasPrompt && !GetGlobalOption("infobar").(bool) {
-		return
-	}
-
-	// We'll draw the line at the lowest line in the view
-	y := sline.view.Height + sline.view.y
-
-	file := sline.view.Buf.GetName()
-	if sline.view.Buf.Settings["basename"].(bool) {
-		file = path.Base(file)
-	}
-
-	// If the buffer is dirty (has been modified) write a little '+'
-	if sline.view.Buf.Modified() {
-		file += " +"
-	}
-
-	// Add one to cursor.x and cursor.y because (0,0) is the top left,
-	// but users will be used to (1,1) (first line,first column)
-	// We use GetVisualX() here because otherwise we get the column number in runes
-	// so a '\t' is only 1, when it should be tabSize
-	columnNum := strconv.Itoa(sline.view.Cursor.GetVisualX() + 1)
-	lineNum := strconv.Itoa(sline.view.Cursor.Y + 1)
-
-	file += " (" + lineNum + "," + columnNum + ")"
-
-	// Add the filetype
-	file += " " + sline.view.Buf.FileType()
-
-	file += " " + sline.view.Buf.Settings["fileformat"].(string)
-
-	rightText := ""
-	if !sline.view.Buf.Settings["hidehelp"].(bool) {
-		if len(kmenuBinding) > 0 {
-			if globalSettings["keymenu"].(bool) {
-				rightText += kmenuBinding + ": hide bindings"
-			} else {
-				rightText += kmenuBinding + ": show bindings"
-			}
-		}
-		if len(helpBinding) > 0 {
-			if len(kmenuBinding) > 0 {
-				rightText += ", "
-			}
-			if sline.view.Type == vtHelp {
-				rightText += helpBinding + ": close help"
-			} else {
-				rightText += helpBinding + ": open help"
-			}
-		}
-		rightText += " "
-	}
-
-	statusLineStyle := defStyle.Reverse(true)
-	if style, ok := colorscheme["statusline"]; ok {
-		statusLineStyle = style
-	}
-
-	// Maybe there is a unicode filename?
-	fileRunes := []rune(file)
-
-	if sline.view.Type == vtTerm {
-		fileRunes = []rune(sline.view.term.title)
-		rightText = ""
-	}
-
-	viewX := sline.view.x
-	if viewX != 0 {
-		screen.SetContent(viewX, y, ' ', nil, statusLineStyle)
-		viewX++
-	}
-	for x := 0; x < sline.view.Width; x++ {
-		if x < len(fileRunes) {
-			screen.SetContent(viewX+x, y, fileRunes[x], nil, statusLineStyle)
-		} else if x >= sline.view.Width-len(rightText) && x < len(rightText)+sline.view.Width-len(rightText) {
-			screen.SetContent(viewX+x, y, []rune(rightText)[x-sline.view.Width+len(rightText)], nil, statusLineStyle)
-		} else {
-			screen.SetContent(viewX+x, y, ' ', nil, statusLineStyle)
-		}
-	}
-}

cmd/micro/tab.go

@@ -1,279 +0,0 @@
-package main
-
-import (
-	"sort"
-
-	"github.com/zyedidia/tcell"
-)
-
-var tabBarOffset int
-
-// A Tab holds an array of views and a splitTree to determine how the
-// views should be arranged
-type Tab struct {
-	// This contains all the views in this tab
-	// There is generally only one view per tab, but you can have
-	// multiple views with splits
-	Views []*View
-	// This is the current view for this tab
-	CurView int
-
-	tree *SplitTree
-}
-
-// NewTabFromView creates a new tab and puts the given view in the tab
-func NewTabFromView(v *View) *Tab {
-	t := new(Tab)
-	t.Views = append(t.Views, v)
-	t.Views[0].Num = 0
-
-	t.tree = new(SplitTree)
-	t.tree.kind = VerticalSplit
-	t.tree.children = []Node{NewLeafNode(t.Views[0], t.tree)}
-
-	w, h := screen.Size()
-	t.tree.width = w
-	t.tree.height = h
-
-	if globalSettings["infobar"].(bool) {
-		t.tree.height--
-	}
-	if globalSettings["keymenu"].(bool) {
-		t.tree.height -= 2
-	}
-
-	t.Resize()
-
-	return t
-}
-
-// SetNum sets all this tab's views to have the correct tab number
-func (t *Tab) SetNum(num int) {
-	t.tree.tabNum = num
-	for _, v := range t.Views {
-		v.TabNum = num
-	}
-}
-
-// Cleanup cleans up the tree (for example if views have closed)
-func (t *Tab) Cleanup() {
-	t.tree.Cleanup()
-}
-
-// Resize handles a resize event from the terminal and resizes
-// all child views correctly
-func (t *Tab) Resize() {
-	w, h := screen.Size()
-	t.tree.width = w
-	t.tree.height = h
-
-	if globalSettings["infobar"].(bool) {
-		t.tree.height--
-	}
-	if globalSettings["keymenu"].(bool) {
-		t.tree.height -= 2
-	}
-
-	t.tree.ResizeSplits()
-
-	for i, v := range t.Views {
-		v.Num = i
-		if v.Type == vtTerm {
-			v.term.Resize(v.Width, v.Height)
-		}
-	}
-}
-
-// CurView returns the current view
-func CurView() *View {
-	curTab := tabs[curTab]
-	return curTab.Views[curTab.CurView]
-}
-
-// TabbarString returns the string that should be displayed in the tabbar
-// It also returns a map containing which indicies correspond to which tab number
-// This is useful when we know that the mouse click has occurred at an x location
-// but need to know which tab that corresponds to to accurately change the tab
-func TabbarString() (string, map[int]int) {
-	str := ""
-	indicies := make(map[int]int)
-	for i, t := range tabs {
-		if i == curTab {
-			str += "["
-		} else {
-			str += " "
-		}
-		buf := t.Views[t.CurView].Buf
-		str += buf.GetName()
-		if buf.Modified() {
-			str += " +"
-		}
-		if i == curTab {
-			str += "]"
-		} else {
-			str += " "
-		}
-		indicies[Count(str)-1] = i + 1
-		str += " "
-	}
-	return str, indicies
-}
-
-// TabbarHandleMouseEvent checks the given mouse event if it is clicking on the tabbar
-// If it is it changes the current tab accordingly
-// This function returns true if the tab is changed
-func TabbarHandleMouseEvent(event tcell.Event) bool {
-	// There is no tabbar displayed if there are less than 2 tabs
-	if len(tabs) <= 1 {
-		return false
-	}
-
-	switch e := event.(type) {
-	case *tcell.EventMouse:
-		button := e.Buttons()
-		// Must be a left click
-		if button == tcell.Button1 {
-			x, y := e.Position()
-			if y != 0 {
-				return false
-			}
-			str, indicies := TabbarString()
-			if x+tabBarOffset >= len(str) {
-				return false
-			}
-			var tabnum int
-			var keys []int
-			for k := range indicies {
-				keys = append(keys, k)
-			}
-			sort.Ints(keys)
-			for _, k := range keys {
-				if x+tabBarOffset <= k {
-					tabnum = indicies[k] - 1
-					break
-				}
-			}
-			curTab = tabnum
-			return true
-		}
-	}
-
-	return false
-}
-
-// DisplayTabs displays the tabbar at the top of the editor if there are multiple tabs
-func DisplayTabs() {
-	if len(tabs) <= 1 {
-		return
-	}
-
-	str, indicies := TabbarString()
-
-	tabBarStyle := defStyle.Reverse(true)
-	if style, ok := colorscheme["tabbar"]; ok {
-		tabBarStyle = style
-	}
-
-	// Maybe there is a unicode filename?
-	fileRunes := []rune(str)
-	w, _ := screen.Size()
-	tooWide := (w < len(fileRunes))
-
-	// if the entire tab-bar is longer than the screen is wide,
-	// then it should be truncated appropriately to keep the
-	// active tab visible on the UI.
-	if tooWide == true {
-		// first we have to work out where the selected tab is
-		// out of the total length of the tab bar. this is done
-		// by extracting the hit-areas from the indicies map
-		// that was constructed by `TabbarString()`
-		var keys []int
-		for offset := range indicies {
-			keys = append(keys, offset)
-		}
-		// sort them to be in ascending order so that values will
-		// correctly reflect the displayed ordering of the tabs
-		sort.Ints(keys)
-		// record the offset of each tab and the previous tab so
-		// we can find the position of the tab's hit-box.
-		previousTabOffset := 0
-		currentTabOffset := 0
-		for _, k := range keys {
-			tabIndex := indicies[k] - 1
-			if tabIndex == curTab {
-				currentTabOffset = k
-				break
-			}
-			// this is +2 because there are two padding spaces that aren't accounted
-			// for in the display. please note that this is for cosmetic purposes only.
-			previousTabOffset = k + 2
-		}
-		// get the width of the hitbox of the active tab, from there calculate the offsets
-		// to the left and right of it to approximately center it on the tab bar display.
-		centeringOffset := (w - (currentTabOffset - previousTabOffset))
-		leftBuffer := previousTabOffset - (centeringOffset / 2)
-		rightBuffer := currentTabOffset + (centeringOffset / 2)
-
-		// check to make sure we haven't overshot the bounds of the string,
-		// if we have, then take that remainder and put it on the left side
-		overshotRight := rightBuffer - len(fileRunes)
-		if overshotRight > 0 {
-			leftBuffer = leftBuffer + overshotRight
-		}
-
-		overshotLeft := leftBuffer - 0
-		if overshotLeft < 0 {
-			leftBuffer = 0
-			rightBuffer = leftBuffer + (w - 1)
-		} else {
-			rightBuffer = leftBuffer + (w - 2)
-		}
-
-		if rightBuffer > len(fileRunes)-1 {
-			rightBuffer = len(fileRunes) - 1
-		}
-
-		// construct a new buffer of text to put the
-		// newly formatted tab bar text into.
-		var displayText []rune
-
-		// if the left-side of the tab bar isn't at the start
-		// of the constructed tab bar text, then show that are
-		// more tabs to the left by displaying a "+"
-		if leftBuffer != 0 {
-			displayText = append(displayText, '+')
-		}
-		// copy the runes in from the original tab bar text string
-		// into the new display buffer
-		for x := leftBuffer; x < rightBuffer; x++ {
-			displayText = append(displayText, fileRunes[x])
-		}
-		// if there is more text to the right of the right-most
-		// column in the tab bar text, then indicate there are more
-		// tabs to the right by displaying a "+"
-		if rightBuffer < len(fileRunes)-1 {
-			displayText = append(displayText, '+')
-		}
-
-		// now store the offset from zero of the left-most text
-		// that is being displayed. This is to ensure that when
-		// clicking on the tab bar, the correct tab gets selected.
-		tabBarOffset = leftBuffer
-
-		// use the constructed buffer as the display buffer to print
-		// onscreen.
-		fileRunes = displayText
-	} else {
-		tabBarOffset = 0
-	}
-
-	// iterate over the width of the terminal display and for each column,
-	// write a character into the tab display area with the appropriate style.
-	for x := 0; x < w; x++ {
-		if x < len(fileRunes) {
-			screen.SetContent(x, 0, fileRunes[x], nil, tabBarStyle)
-		} else {
-			screen.SetContent(x, 0, ' ', nil, tabBarStyle)
-		}
-	}
-}

cmd/micro/terminal.go

@@ -1,228 +0,0 @@
-package main
-
-import (
-	"bytes"
-	"fmt"
-	"os"
-	"os/exec"
-	"strconv"
-	"strings"
-
-	"github.com/zyedidia/clipboard"
-	"github.com/zyedidia/tcell"
-	"github.com/zyedidia/terminal"
-)
-
-const (
-	VTIdle    = iota // Waiting for a new command
-	VTRunning        // Currently running a command
-	VTDone           // Finished running a command
-)
-
-// A Terminal holds information for the terminal emulator
-type Terminal struct {
-	state     terminal.State
-	view      *View
-	vtOld     ViewType
-	term      *terminal.VT
-	title     string
-	status    int
-	selection [2]Loc
-	wait      bool
-	getOutput bool
-	output    *bytes.Buffer
-	callback  string
-}
-
-// HasSelection returns whether this terminal has a valid selection
-func (t *Terminal) HasSelection() bool {
-	return t.selection[0] != t.selection[1]
-}
-
-// GetSelection returns the selected text
-func (t *Terminal) GetSelection(width int) string {
-	start := t.selection[0]
-	end := t.selection[1]
-	if start.GreaterThan(end) {
-		start, end = end, start
-	}
-	var ret string
-	var l Loc
-	for y := start.Y; y <= end.Y; y++ {
-		for x := 0; x < width; x++ {
-			l.X, l.Y = x, y
-			if l.GreaterEqual(start) && l.LessThan(end) {
-				c, _, _ := t.state.Cell(x, y)
-				ret += string(c)
-			}
-		}
-	}
-	return ret
-}
-
-// Start begins a new command in this terminal with a given view
-func (t *Terminal) Start(execCmd []string, view *View, getOutput bool) error {
-	if len(execCmd) <= 0 {
-		return nil
-	}
-
-	cmd := exec.Command(execCmd[0], execCmd[1:]...)
-	t.output = nil
-	if getOutput {
-		t.output = bytes.NewBuffer([]byte{})
-	}
-	term, _, err := terminal.Start(&t.state, cmd, t.output)
-	if err != nil {
-		return err
-	}
-	t.term = term
-	t.view = view
-	t.getOutput = getOutput
-	t.vtOld = view.Type
-	t.status = VTRunning
-	t.title = execCmd[0] + ":" + strconv.Itoa(cmd.Process.Pid)
-
-	go func() {
-		for {
-			err := term.Parse()
-			if err != nil {
-				fmt.Fprintln(os.Stderr, "[Press enter to close]")
-				break
-			}
-			updateterm <- true
-		}
-		closeterm <- view.Num
-	}()
-
-	return nil
-}
-
-// Resize informs the terminal of a resize event
-func (t *Terminal) Resize(width, height int) {
-	t.term.Resize(width, height)
-}
-
-// HandleEvent handles a tcell event by forwarding it to the terminal emulator
-// If the event is a mouse event and the program running in the emulator
-// does not have mouse support, the emulator will support selections and
-// copy-paste
-func (t *Terminal) HandleEvent(event tcell.Event) {
-	if e, ok := event.(*tcell.EventKey); ok {
-		if t.status == VTDone {
-			switch e.Key() {
-			case tcell.KeyEscape, tcell.KeyCtrlQ, tcell.KeyEnter:
-				t.Close()
-				t.view.Type = vtDefault
-			default:
-			}
-		}
-		if e.Key() == tcell.KeyCtrlC && t.HasSelection() {
-			clipboard.WriteAll(t.GetSelection(t.view.Width), "clipboard")
-			messenger.Message("Copied selection to clipboard")
-		} else if t.status != VTDone {
-			t.WriteString(event.EscSeq())
-		}
-	} else if e, ok := event.(*tcell.EventMouse); !ok || t.state.Mode(terminal.ModeMouseMask) {
-		t.WriteString(event.EscSeq())
-	} else {
-		x, y := e.Position()
-		x -= t.view.x
-		y += t.view.y
-
-		if e.Buttons() == tcell.Button1 {
-			if !t.view.mouseReleased {
-				// drag
-				t.selection[1].X = x
-				t.selection[1].Y = y
-			} else {
-				t.selection[0].X = x
-				t.selection[0].Y = y
-				t.selection[1].X = x
-				t.selection[1].Y = y
-			}
-
-			t.view.mouseReleased = false
-		} else if e.Buttons() == tcell.ButtonNone {
-			if !t.view.mouseReleased {
-				t.selection[1].X = x
-				t.selection[1].Y = y
-			}
-			t.view.mouseReleased = true
-		}
-	}
-}
-
-// Stop stops execution of the terminal and sets the status
-// to VTDone
-func (t *Terminal) Stop() {
-	t.term.File().Close()
-	t.term.Close()
-	if t.wait {
-		t.status = VTDone
-	} else {
-		t.Close()
-		t.view.Type = t.vtOld
-	}
-}
-
-// Close sets the status to VTIdle indicating that the terminal
-// is ready for a new command to execute
-func (t *Terminal) Close() {
-	t.status = VTIdle
-	// call the lua function that the user has given as a callback
-	if t.getOutput {
-		_, err := Call(t.callback, t.output.String())
-		if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
-			TermMessage(err)
-		}
-	}
-}
-
-// WriteString writes a given string to this terminal's pty
-func (t *Terminal) WriteString(str string) {
-	t.term.File().WriteString(str)
-}
-
-// Display displays this terminal in a view
-func (t *Terminal) Display() {
-	divider := 0
-	if t.view.x != 0 {
-		divider = 1
-		dividerStyle := defStyle
-		if style, ok := colorscheme["divider"]; ok {
-			dividerStyle = style
-		}
-		for i := 0; i < t.view.Height; i++ {
-			screen.SetContent(t.view.x, t.view.y+i, '|', nil, dividerStyle.Reverse(true))
-		}
-	}
-	t.state.Lock()
-	defer t.state.Unlock()
-
-	var l Loc
-	for y := 0; y < t.view.Height; y++ {
-		for x := 0; x < t.view.Width; x++ {
-			l.X, l.Y = x, y
-			c, f, b := t.state.Cell(x, y)
-
-			fg, bg := int(f), int(b)
-			if f == terminal.DefaultFG {
-				fg = int(tcell.ColorDefault)
-			}
-			if b == terminal.DefaultBG {
-				bg = int(tcell.ColorDefault)
-			}
-			st := tcell.StyleDefault.Foreground(GetColor256(int(fg))).Background(GetColor256(int(bg)))
-
-			if l.LessThan(t.selection[1]) && l.GreaterEqual(t.selection[0]) || l.LessThan(t.selection[0]) && l.GreaterEqual(t.selection[1]) {
-				st = st.Reverse(true)
-			}
-
-			screen.SetContent(t.view.x+x+divider, t.view.y+y, c, nil, st)
-		}
-	}
-	if t.state.CursorVisible() && tabs[curTab].CurView == t.view.Num {
-		curx, cury := t.state.Cursor()
-		screen.ShowCursor(curx+t.view.x+divider, cury+t.view.y)
-	}
-}

cmd/micro/terminfo/LICENSE.md

@@ -1,203 +0,0 @@
-
-                                 Apache License
-                           Version 2.0, January 2004
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
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-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
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-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
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-      outstanding shares, or (iii) beneficial ownership of such entity.
-
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-      exercising permissions granted by this License.
-
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-      including but not limited to software source code, documentation
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-      not limited to compiled object code, generated documentation,
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-      "Work" shall mean the work of authorship, whether in Source or
-      Object form, made available under the License, as indicated by a
-      copyright notice that is included in or attached to the work
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-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
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-      the terms of any separate license agreement you may have executed
-      with Licensor regarding such Contributions.
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-   limitations under the License.
-

cmd/micro/terminfo/README.md

@@ -1,6 +0,0 @@
-# Terminfo parser
-
-This terminfo parser was written by the authors of [tcell](https://github.com/gdamore/tcell). We are using it here
-to compile the terminal database if the terminal entry is not found in set of precompiled terminals.
-
-The source for `mkinfo.go` is adapted from tcell's `mkinfo` tool to be more of a library.

cmd/micro/terminfo/mkinfo.go

@@ -1,512 +0,0 @@
-// Copyright 2017 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// This command is used to generate suitable configuration files in either
-// go syntax or in JSON.  It defaults to JSON output on stdout.  If no
-// term values are specified on the command line, then $TERM is used.
-//
-// Usage is like this:
-//
-// mkinfo [-init] [-go file.go] [-json file.json] [-quiet] [-nofatal] [<term>...]
-//
-// -gzip     specifies output should be compressed (json only)
-// -go       specifies Go output into the named file.  Use - for stdout.
-// -json     specifies JSON output in the named file.  Use - for stdout
-// -nofatal  indicates that errors loading definitions should not be fatal
-//
-
-package terminfo
-
-import (
-	"bytes"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"os/exec"
-	"regexp"
-	"strconv"
-	"strings"
-)
-
-type termcap struct {
-	name    string
-	desc    string
-	aliases []string
-	bools   map[string]bool
-	nums    map[string]int
-	strs    map[string]string
-}
-
-func (tc *termcap) getnum(s string) int {
-	return (tc.nums[s])
-}
-
-func (tc *termcap) getflag(s string) bool {
-	return (tc.bools[s])
-}
-
-func (tc *termcap) getstr(s string) string {
-	return (tc.strs[s])
-}
-
-const (
-	NONE = iota
-	CTRL
-	ESC
-)
-
-func unescape(s string) string {
-	// Various escapes are in \x format.  Control codes are
-	// encoded as ^M (carat followed by ASCII equivalent).
-	// Escapes are: \e, \E - escape
-	//  \0 NULL, \n \l \r \t \b \f \s for equivalent C escape.
-	buf := &bytes.Buffer{}
-	esc := NONE
-
-	for i := 0; i < len(s); i++ {
-		c := s[i]
-		switch esc {
-		case NONE:
-			switch c {
-			case '\\':
-				esc = ESC
-			case '^':
-				esc = CTRL
-			default:
-				buf.WriteByte(c)
-			}
-		case CTRL:
-			buf.WriteByte(c - 0x40)
-			esc = NONE
-		case ESC:
-			switch c {
-			case 'E', 'e':
-				buf.WriteByte(0x1b)
-			case '0', '1', '2', '3', '4', '5', '6', '7':
-				if i+2 < len(s) && s[i+1] >= '0' && s[i+1] <= '7' && s[i+2] >= '0' && s[i+2] <= '7' {
-					buf.WriteByte(((c - '0') * 64) + ((s[i+1] - '0') * 8) + (s[i+2] - '0'))
-					i = i + 2
-				} else if c == '0' {
-					buf.WriteByte(0)
-				}
-			case 'n':
-				buf.WriteByte('\n')
-			case 'r':
-				buf.WriteByte('\r')
-			case 't':
-				buf.WriteByte('\t')
-			case 'b':
-				buf.WriteByte('\b')
-			case 'f':
-				buf.WriteByte('\f')
-			case 's':
-				buf.WriteByte(' ')
-			case 'l':
-				panic("WTF: weird format: " + s)
-			default:
-				buf.WriteByte(c)
-			}
-			esc = NONE
-		}
-	}
-	return (buf.String())
-}
-
-func (tc *termcap) setupterm(name string) error {
-	cmd := exec.Command("infocmp", "-1", name)
-	output := &bytes.Buffer{}
-	cmd.Stdout = output
-
-	tc.strs = make(map[string]string)
-	tc.bools = make(map[string]bool)
-	tc.nums = make(map[string]int)
-
-	err := cmd.Run()
-	if err != nil {
-		return err
-	}
-
-	// Now parse the output.
-	// We get comment lines (starting with "#"), followed by
-	// a header line that looks like "<name>|<alias>|...|<desc>"
-	// then capabilities, one per line, starting with a tab and ending
-	// with a comma and newline.
-	lines := strings.Split(output.String(), "\n")
-	for len(lines) > 0 && strings.HasPrefix(lines[0], "#") {
-		lines = lines[1:]
-	}
-
-	// Ditch trailing empty last line
-	if lines[len(lines)-1] == "" {
-		lines = lines[:len(lines)-1]
-	}
-	header := lines[0]
-	if strings.HasSuffix(header, ",") {
-		header = header[:len(header)-1]
-	}
-	names := strings.Split(header, "|")
-	tc.name = names[0]
-	names = names[1:]
-	if len(names) > 0 {
-		tc.desc = names[len(names)-1]
-		names = names[:len(names)-1]
-	}
-	tc.aliases = names
-	for _, val := range lines[1:] {
-		if (!strings.HasPrefix(val, "\t")) ||
-			(!strings.HasSuffix(val, ",")) {
-			return (errors.New("malformed infocmp: " + val))
-		}
-
-		val = val[1:]
-		val = val[:len(val)-1]
-
-		if k := strings.SplitN(val, "=", 2); len(k) == 2 {
-			tc.strs[k[0]] = unescape(k[1])
-		} else if k := strings.SplitN(val, "#", 2); len(k) == 2 {
-			if u, err := strconv.ParseUint(k[1], 10, 0); err != nil {
-				return (err)
-			} else {
-				tc.nums[k[0]] = int(u)
-			}
-		} else {
-			tc.bools[val] = true
-		}
-	}
-	return nil
-}
-
-// This program is used to collect data from the system's terminfo library,
-// and write it into Go source code.  That is, we maintain our terminfo
-// capabilities encoded in the program.  It should never need to be run by
-// an end user, but developers can use this to add codes for additional
-// terminal types.
-//
-// If a terminal name ending with -truecolor is given, and we cannot find
-// one, we will try to fabricate one from either the -256color (if present)
-// or the unadorned base name, adding the XTerm specific 24-bit color
-// escapes.  We believe that all 24-bit capable terminals use the same
-// escape sequences, and terminfo has yet to evolve to support this.
-func getinfo(name string) (*Terminfo, string, error) {
-	var tc termcap
-	addTrueColor := false
-	if err := tc.setupterm(name); err != nil {
-		if strings.HasSuffix(name, "-truecolor") {
-			base := name[:len(name)-len("-truecolor")]
-			// Probably -256color is closest to what we want
-			if err = tc.setupterm(base + "-256color"); err != nil {
-				err = tc.setupterm(base)
-			}
-			if err == nil {
-				addTrueColor = true
-			}
-			tc.name = name
-		}
-		if err != nil {
-			return nil, "", err
-		}
-	}
-	t := &Terminfo{}
-	// If this is an alias record, then just emit the alias
-	t.Name = tc.name
-	if t.Name != name {
-		return t, "", nil
-	}
-	t.Aliases = tc.aliases
-	t.Colors = tc.getnum("colors")
-	t.Columns = tc.getnum("cols")
-	t.Lines = tc.getnum("lines")
-	t.Bell = tc.getstr("bel")
-	t.Clear = tc.getstr("clear")
-	t.EnterCA = tc.getstr("smcup")
-	t.ExitCA = tc.getstr("rmcup")
-	t.ShowCursor = tc.getstr("cnorm")
-	t.HideCursor = tc.getstr("civis")
-	t.AttrOff = tc.getstr("sgr0")
-	t.Underline = tc.getstr("smul")
-	t.Bold = tc.getstr("bold")
-	t.Blink = tc.getstr("blink")
-	t.Dim = tc.getstr("dim")
-	t.Reverse = tc.getstr("rev")
-	t.EnterKeypad = tc.getstr("smkx")
-	t.ExitKeypad = tc.getstr("rmkx")
-	t.SetFg = tc.getstr("setaf")
-	t.SetBg = tc.getstr("setab")
-	t.SetCursor = tc.getstr("cup")
-	t.CursorBack1 = tc.getstr("cub1")
-	t.CursorUp1 = tc.getstr("cuu1")
-	t.KeyF1 = tc.getstr("kf1")
-	t.KeyF2 = tc.getstr("kf2")
-	t.KeyF3 = tc.getstr("kf3")
-	t.KeyF4 = tc.getstr("kf4")
-	t.KeyF5 = tc.getstr("kf5")
-	t.KeyF6 = tc.getstr("kf6")
-	t.KeyF7 = tc.getstr("kf7")
-	t.KeyF8 = tc.getstr("kf8")
-	t.KeyF9 = tc.getstr("kf9")
-	t.KeyF10 = tc.getstr("kf10")
-	t.KeyF11 = tc.getstr("kf11")
-	t.KeyF12 = tc.getstr("kf12")
-	t.KeyF13 = tc.getstr("kf13")
-	t.KeyF14 = tc.getstr("kf14")
-	t.KeyF15 = tc.getstr("kf15")
-	t.KeyF16 = tc.getstr("kf16")
-	t.KeyF17 = tc.getstr("kf17")
-	t.KeyF18 = tc.getstr("kf18")
-	t.KeyF19 = tc.getstr("kf19")
-	t.KeyF20 = tc.getstr("kf20")
-	t.KeyF21 = tc.getstr("kf21")
-	t.KeyF22 = tc.getstr("kf22")
-	t.KeyF23 = tc.getstr("kf23")
-	t.KeyF24 = tc.getstr("kf24")
-	t.KeyF25 = tc.getstr("kf25")
-	t.KeyF26 = tc.getstr("kf26")
-	t.KeyF27 = tc.getstr("kf27")
-	t.KeyF28 = tc.getstr("kf28")
-	t.KeyF29 = tc.getstr("kf29")
-	t.KeyF30 = tc.getstr("kf30")
-	t.KeyF31 = tc.getstr("kf31")
-	t.KeyF32 = tc.getstr("kf32")
-	t.KeyF33 = tc.getstr("kf33")
-	t.KeyF34 = tc.getstr("kf34")
-	t.KeyF35 = tc.getstr("kf35")
-	t.KeyF36 = tc.getstr("kf36")
-	t.KeyF37 = tc.getstr("kf37")
-	t.KeyF38 = tc.getstr("kf38")
-	t.KeyF39 = tc.getstr("kf39")
-	t.KeyF40 = tc.getstr("kf40")
-	t.KeyF41 = tc.getstr("kf41")
-	t.KeyF42 = tc.getstr("kf42")
-	t.KeyF43 = tc.getstr("kf43")
-	t.KeyF44 = tc.getstr("kf44")
-	t.KeyF45 = tc.getstr("kf45")
-	t.KeyF46 = tc.getstr("kf46")
-	t.KeyF47 = tc.getstr("kf47")
-	t.KeyF48 = tc.getstr("kf48")
-	t.KeyF49 = tc.getstr("kf49")
-	t.KeyF50 = tc.getstr("kf50")
-	t.KeyF51 = tc.getstr("kf51")
-	t.KeyF52 = tc.getstr("kf52")
-	t.KeyF53 = tc.getstr("kf53")
-	t.KeyF54 = tc.getstr("kf54")
-	t.KeyF55 = tc.getstr("kf55")
-	t.KeyF56 = tc.getstr("kf56")
-	t.KeyF57 = tc.getstr("kf57")
-	t.KeyF58 = tc.getstr("kf58")
-	t.KeyF59 = tc.getstr("kf59")
-	t.KeyF60 = tc.getstr("kf60")
-	t.KeyF61 = tc.getstr("kf61")
-	t.KeyF62 = tc.getstr("kf62")
-	t.KeyF63 = tc.getstr("kf63")
-	t.KeyF64 = tc.getstr("kf64")
-	t.KeyInsert = tc.getstr("kich1")
-	t.KeyDelete = tc.getstr("kdch1")
-	t.KeyBackspace = tc.getstr("kbs")
-	t.KeyHome = tc.getstr("khome")
-	t.KeyEnd = tc.getstr("kend")
-	t.KeyUp = tc.getstr("kcuu1")
-	t.KeyDown = tc.getstr("kcud1")
-	t.KeyRight = tc.getstr("kcuf1")
-	t.KeyLeft = tc.getstr("kcub1")
-	t.KeyPgDn = tc.getstr("knp")
-	t.KeyPgUp = tc.getstr("kpp")
-	t.KeyBacktab = tc.getstr("kcbt")
-	t.KeyExit = tc.getstr("kext")
-	t.KeyCancel = tc.getstr("kcan")
-	t.KeyPrint = tc.getstr("kprt")
-	t.KeyHelp = tc.getstr("khlp")
-	t.KeyClear = tc.getstr("kclr")
-	t.AltChars = tc.getstr("acsc")
-	t.EnterAcs = tc.getstr("smacs")
-	t.ExitAcs = tc.getstr("rmacs")
-	t.EnableAcs = tc.getstr("enacs")
-	t.Mouse = tc.getstr("kmous")
-	t.KeyShfRight = tc.getstr("kRIT")
-	t.KeyShfLeft = tc.getstr("kLFT")
-	t.KeyShfHome = tc.getstr("kHOM")
-	t.KeyShfEnd = tc.getstr("kEND")
-
-	// Terminfo lacks descriptions for a bunch of modified keys,
-	// but modern XTerm and emulators often have them.  Let's add them,
-	// if the shifted right and left arrows are defined.
-	if t.KeyShfRight == "\x1b[1;2C" && t.KeyShfLeft == "\x1b[1;2D" {
-		t.KeyShfUp = "\x1b[1;2A"
-		t.KeyShfDown = "\x1b[1;2B"
-		t.KeyMetaUp = "\x1b[1;9A"
-		t.KeyMetaDown = "\x1b[1;9B"
-		t.KeyMetaRight = "\x1b[1;9C"
-		t.KeyMetaLeft = "\x1b[1;9D"
-		t.KeyAltUp = "\x1b[1;3A"
-		t.KeyAltDown = "\x1b[1;3B"
-		t.KeyAltRight = "\x1b[1;3C"
-		t.KeyAltLeft = "\x1b[1;3D"
-		t.KeyCtrlUp = "\x1b[1;5A"
-		t.KeyCtrlDown = "\x1b[1;5B"
-		t.KeyCtrlRight = "\x1b[1;5C"
-		t.KeyCtrlLeft = "\x1b[1;5D"
-		t.KeyAltShfUp = "\x1b[1;4A"
-		t.KeyAltShfDown = "\x1b[1;4B"
-		t.KeyAltShfRight = "\x1b[1;4C"
-		t.KeyAltShfLeft = "\x1b[1;4D"
-
-		t.KeyMetaShfUp = "\x1b[1;10A"
-		t.KeyMetaShfDown = "\x1b[1;10B"
-		t.KeyMetaShfRight = "\x1b[1;10C"
-		t.KeyMetaShfLeft = "\x1b[1;10D"
-
-		t.KeyCtrlShfUp = "\x1b[1;6A"
-		t.KeyCtrlShfDown = "\x1b[1;6B"
-		t.KeyCtrlShfRight = "\x1b[1;6C"
-		t.KeyCtrlShfLeft = "\x1b[1;6D"
-	}
-	// And also for Home and End
-	if t.KeyShfHome == "\x1b[1;2H" && t.KeyShfEnd == "\x1b[1;2F" {
-		t.KeyCtrlHome = "\x1b[1;5H"
-		t.KeyCtrlEnd = "\x1b[1;5F"
-		t.KeyAltHome = "\x1b[1;9H"
-		t.KeyAltEnd = "\x1b[1;9F"
-		t.KeyCtrlShfHome = "\x1b[1;6H"
-		t.KeyCtrlShfEnd = "\x1b[1;6F"
-		t.KeyAltShfHome = "\x1b[1;4H"
-		t.KeyAltShfEnd = "\x1b[1;4F"
-		t.KeyMetaShfHome = "\x1b[1;10H"
-		t.KeyMetaShfEnd = "\x1b[1;10F"
-	}
-
-	// And the same thing for rxvt and workalikes (Eterm, aterm, etc.)
-	// It seems that urxvt at least send ESC as ALT prefix for these,
-	// although some places seem to indicate a separate ALT key sesquence.
-	if t.KeyShfRight == "\x1b[c" && t.KeyShfLeft == "\x1b[d" {
-		t.KeyShfUp = "\x1b[a"
-		t.KeyShfDown = "\x1b[b"
-		t.KeyCtrlUp = "\x1b[Oa"
-		t.KeyCtrlDown = "\x1b[Ob"
-		t.KeyCtrlRight = "\x1b[Oc"
-		t.KeyCtrlLeft = "\x1b[Od"
-	}
-	if t.KeyShfHome == "\x1b[7$" && t.KeyShfEnd == "\x1b[8$" {
-		t.KeyCtrlHome = "\x1b[7^"
-		t.KeyCtrlEnd = "\x1b[8^"
-	}
-
-	// If the kmous entry is present, then we need to record the
-	// the codes to enter and exit mouse mode.  Sadly, this is not
-	// part of the terminfo databases anywhere that I've found, but
-	// is an extension.  The escape codes are documented in the XTerm
-	// manual, and all terminals that have kmous are expected to
-	// use these same codes, unless explicitly configured otherwise
-	// vi XM.  Note that in any event, we only known how to parse either
-	// x11 or SGR mouse events -- if your terminal doesn't support one
-	// of these two forms, you maybe out of luck.
-	t.MouseMode = tc.getstr("XM")
-	if t.Mouse != "" && t.MouseMode == "" {
-		// we anticipate that all xterm mouse tracking compatible
-		// terminals understand mouse tracking (1000), but we hope
-		// that those that don't understand any-event tracking (1003)
-		// will at least ignore it.  Likewise we hope that terminals
-		// that don't understand SGR reporting (1006) just ignore it.
-		t.MouseMode = "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;" +
-			"\x1b[?1000%ga%c\x1b[?1002%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c"
-	}
-
-	// We only support colors in ANSI 8 or 256 color mode.
-	if t.Colors < 8 || t.SetFg == "" {
-		t.Colors = 0
-	}
-	if t.SetCursor == "" {
-		return nil, "", errors.New("terminal not cursor addressable")
-	}
-
-	// For padding, we lookup the pad char.  If that isn't present,
-	// and npc is *not* set, then we assume a null byte.
-	t.PadChar = tc.getstr("pad")
-	if t.PadChar == "" {
-		if !tc.getflag("npc") {
-			t.PadChar = "\u0000"
-		}
-	}
-
-	// For some terminals we fabricate a -truecolor entry, that may
-	// not exist in terminfo.
-	if addTrueColor {
-		t.SetFgRGB = "\x1b[38;2;%p1%d;%p2%d;%p3%dm"
-		t.SetBgRGB = "\x1b[48;2;%p1%d;%p2%d;%p3%dm"
-		t.SetFgBgRGB = "\x1b[38;2;%p1%d;%p2%d;%p3%d;" +
-			"48;2;%p4%d;%p5%d;%p6%dm"
-	}
-
-	// For terminals that use "standard" SGR sequences, lets combine the
-	// foreground and background together.
-	if strings.HasPrefix(t.SetFg, "\x1b[") &&
-		strings.HasPrefix(t.SetBg, "\x1b[") &&
-		strings.HasSuffix(t.SetFg, "m") &&
-		strings.HasSuffix(t.SetBg, "m") {
-		fg := t.SetFg[:len(t.SetFg)-1]
-		r := regexp.MustCompile("%p1")
-		bg := r.ReplaceAllString(t.SetBg[2:], "%p2")
-		t.SetFgBg = fg + ";" + bg
-	}
-
-	return t, tc.desc, nil
-}
-
-func WriteDB(filename string) error {
-	var e error
-	js := []byte{}
-	args := []string{os.Getenv("TERM")}
-
-	tdata := make(map[string]*Terminfo)
-	descs := make(map[string]string)
-
-	for _, term := range args {
-		if t, desc, e := getinfo(term); e != nil {
-			return e
-		} else {
-			tdata[term] = t
-			descs[term] = desc
-		}
-	}
-
-	if len(tdata) == 0 {
-		// No data.
-		return errors.New("No data")
-	}
-	o := os.Stdout
-	if o, e = os.Create(filename); e != nil {
-		return e
-	}
-	var w io.WriteCloser
-	w = o
-	for _, term := range args {
-		if t := tdata[term]; t != nil {
-			js, e = json.Marshal(t)
-			fmt.Fprintln(w, string(js))
-		}
-		// arguably if there is more than one term, this
-		// should be a javascript array, but that's not how
-		// we load it.  We marshal objects one at a time from
-		// the file.
-	}
-	if e != nil {
-		return e
-	}
-	w.Close()
-	if w != o {
-		o.Close()
-	}
-
-	return nil
-}

cmd/micro/terminfo/terminfo.go

@@ -1,837 +0,0 @@
-// Copyright 2017 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package terminfo
-
-import (
-	"bytes"
-	"compress/gzip"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"path"
-	"strconv"
-	"strings"
-	"sync"
-)
-
-var (
-	// ErrTermNotFound indicates that a suitable terminal entry could
-	// not be found.  This can result from either not having TERM set,
-	// or from the TERM failing to support certain minimal functionality,
-	// in particular absolute cursor addressability (the cup capability)
-	// is required.  For example, legacy "adm3" lacks this capability,
-	// whereas the slightly newer "adm3a" supports it.  This failure
-	// occurs most often with "dumb".
-	ErrTermNotFound = errors.New("terminal entry not found")
-)
-
-// Terminfo represents a terminfo entry.  Note that we use friendly names
-// in Go, but when we write out JSON, we use the same names as terminfo.
-// The name, aliases and smous, rmous fields do not come from terminfo directly.
-type Terminfo struct {
-	Name         string   `json:"name"`
-	Aliases      []string `json:"aliases,omitempty"`
-	Columns      int      `json:"cols,omitempty"`   // cols
-	Lines        int      `json:"lines,omitempty"`  // lines
-	Colors       int      `json:"colors,omitempty"` // colors
-	Bell         string   `json:"bell,omitempty"`   // bell
-	Clear        string   `json:"clear,omitempty"`  // clear
-	EnterCA      string   `json:"smcup,omitempty"`  // smcup
-	ExitCA       string   `json:"rmcup,omitempty"`  // rmcup
-	ShowCursor   string   `json:"cnorm,omitempty"`  // cnorm
-	HideCursor   string   `json:"civis,omitempty"`  // civis
-	AttrOff      string   `json:"sgr0,omitempty"`   // sgr0
-	Underline    string   `json:"smul,omitempty"`   // smul
-	Bold         string   `json:"bold,omitempty"`   // bold
-	Blink        string   `json:"blink,omitempty"`  // blink
-	Reverse      string   `json:"rev,omitempty"`    // rev
-	Dim          string   `json:"dim,omitempty"`    // dim
-	EnterKeypad  string   `json:"smkx,omitempty"`   // smkx
-	ExitKeypad   string   `json:"rmkx,omitempty"`   // rmkx
-	SetFg        string   `json:"setaf,omitempty"`  // setaf
-	SetBg        string   `json:"setbg,omitempty"`  // setab
-	SetCursor    string   `json:"cup,omitempty"`    // cup
-	CursorBack1  string   `json:"cub1,omitempty"`   // cub1
-	CursorUp1    string   `json:"cuu1,omitempty"`   // cuu1
-	PadChar      string   `json:"pad,omitempty"`    // pad
-	KeyBackspace string   `json:"kbs,omitempty"`    // kbs
-	KeyF1        string   `json:"kf1,omitempty"`    // kf1
-	KeyF2        string   `json:"kf2,omitempty"`    // kf2
-	KeyF3        string   `json:"kf3,omitempty"`    // kf3
-	KeyF4        string   `json:"kf4,omitempty"`    // kf4
-	KeyF5        string   `json:"kf5,omitempty"`    // kf5
-	KeyF6        string   `json:"kf6,omitempty"`    // kf6
-	KeyF7        string   `json:"kf7,omitempty"`    // kf7
-	KeyF8        string   `json:"kf8,omitempty"`    // kf8
-	KeyF9        string   `json:"kf9,omitempty"`    // kf9
-	KeyF10       string   `json:"kf10,omitempty"`   // kf10
-	KeyF11       string   `json:"kf11,omitempty"`   // kf11
-	KeyF12       string   `json:"kf12,omitempty"`   // kf12
-	KeyF13       string   `json:"kf13,omitempty"`   // kf13
-	KeyF14       string   `json:"kf14,omitempty"`   // kf14
-	KeyF15       string   `json:"kf15,omitempty"`   // kf15
-	KeyF16       string   `json:"kf16,omitempty"`   // kf16
-	KeyF17       string   `json:"kf17,omitempty"`   // kf17
-	KeyF18       string   `json:"kf18,omitempty"`   // kf18
-	KeyF19       string   `json:"kf19,omitempty"`   // kf19
-	KeyF20       string   `json:"kf20,omitempty"`   // kf20
-	KeyF21       string   `json:"kf21,omitempty"`   // kf21
-	KeyF22       string   `json:"kf22,omitempty"`   // kf22
-	KeyF23       string   `json:"kf23,omitempty"`   // kf23
-	KeyF24       string   `json:"kf24,omitempty"`   // kf24
-	KeyF25       string   `json:"kf25,omitempty"`   // kf25
-	KeyF26       string   `json:"kf26,omitempty"`   // kf26
-	KeyF27       string   `json:"kf27,omitempty"`   // kf27
-	KeyF28       string   `json:"kf28,omitempty"`   // kf28
-	KeyF29       string   `json:"kf29,omitempty"`   // kf29
-	KeyF30       string   `json:"kf30,omitempty"`   // kf30
-	KeyF31       string   `json:"kf31,omitempty"`   // kf31
-	KeyF32       string   `json:"kf32,omitempty"`   // kf32
-	KeyF33       string   `json:"kf33,omitempty"`   // kf33
-	KeyF34       string   `json:"kf34,omitempty"`   // kf34
-	KeyF35       string   `json:"kf35,omitempty"`   // kf35
-	KeyF36       string   `json:"kf36,omitempty"`   // kf36
-	KeyF37       string   `json:"kf37,omitempty"`   // kf37
-	KeyF38       string   `json:"kf38,omitempty"`   // kf38
-	KeyF39       string   `json:"kf39,omitempty"`   // kf39
-	KeyF40       string   `json:"kf40,omitempty"`   // kf40
-	KeyF41       string   `json:"kf41,omitempty"`   // kf41
-	KeyF42       string   `json:"kf42,omitempty"`   // kf42
-	KeyF43       string   `json:"kf43,omitempty"`   // kf43
-	KeyF44       string   `json:"kf44,omitempty"`   // kf44
-	KeyF45       string   `json:"kf45,omitempty"`   // kf45
-	KeyF46       string   `json:"kf46,omitempty"`   // kf46
-	KeyF47       string   `json:"kf47,omitempty"`   // kf47
-	KeyF48       string   `json:"kf48,omitempty"`   // kf48
-	KeyF49       string   `json:"kf49,omitempty"`   // kf49
-	KeyF50       string   `json:"kf50,omitempty"`   // kf50
-	KeyF51       string   `json:"kf51,omitempty"`   // kf51
-	KeyF52       string   `json:"kf52,omitempty"`   // kf52
-	KeyF53       string   `json:"kf53,omitempty"`   // kf53
-	KeyF54       string   `json:"kf54,omitempty"`   // kf54
-	KeyF55       string   `json:"kf55,omitempty"`   // kf55
-	KeyF56       string   `json:"kf56,omitempty"`   // kf56
-	KeyF57       string   `json:"kf57,omitempty"`   // kf57
-	KeyF58       string   `json:"kf58,omitempty"`   // kf58
-	KeyF59       string   `json:"kf59,omitempty"`   // kf59
-	KeyF60       string   `json:"kf60,omitempty"`   // kf60
-	KeyF61       string   `json:"kf61,omitempty"`   // kf61
-	KeyF62       string   `json:"kf62,omitempty"`   // kf62
-	KeyF63       string   `json:"kf63,omitempty"`   // kf63
-	KeyF64       string   `json:"kf64,omitempty"`   // kf64
-	KeyInsert    string   `json:"kich,omitempty"`   // kich1
-	KeyDelete    string   `json:"kdch,omitempty"`   // kdch1
-	KeyHome      string   `json:"khome,omitempty"`  // khome
-	KeyEnd       string   `json:"kend,omitempty"`   // kend
-	KeyHelp      string   `json:"khlp,omitempty"`   // khlp
-	KeyPgUp      string   `json:"kpp,omitempty"`    // kpp
-	KeyPgDn      string   `json:"knp,omitempty"`    // knp
-	KeyUp        string   `json:"kcuu1,omitempty"`  // kcuu1
-	KeyDown      string   `json:"kcud1,omitempty"`  // kcud1
-	KeyLeft      string   `json:"kcub1,omitempty"`  // kcub1
-	KeyRight     string   `json:"kcuf1,omitempty"`  // kcuf1
-	KeyBacktab   string   `json:"kcbt,omitempty"`   // kcbt
-	KeyExit      string   `json:"kext,omitempty"`   // kext
-	KeyClear     string   `json:"kclr,omitempty"`   // kclr
-	KeyPrint     string   `json:"kprt,omitempty"`   // kprt
-	KeyCancel    string   `json:"kcan,omitempty"`   // kcan
-	Mouse        string   `json:"kmous,omitempty"`  // kmous
-	MouseMode    string   `json:"XM,omitempty"`     // XM
-	AltChars     string   `json:"acsc,omitempty"`   // acsc
-	EnterAcs     string   `json:"smacs,omitempty"`  // smacs
-	ExitAcs      string   `json:"rmacs,omitempty"`  // rmacs
-	EnableAcs    string   `json:"enacs,omitempty"`  // enacs
-	KeyShfRight  string   `json:"kRIT,omitempty"`   // kRIT
-	KeyShfLeft   string   `json:"kLFT,omitempty"`   // kLFT
-	KeyShfHome   string   `json:"kHOM,omitempty"`   // kHOM
-	KeyShfEnd    string   `json:"kEND,omitempty"`   // kEND
-
-	// These are non-standard extensions to terminfo.  This includes
-	// true color support, and some additional keys.  Its kind of bizarre
-	// that shifted variants of left and right exist, but not up and down.
-	// Terminal support for these are going to vary amongst XTerm
-	// emulations, so don't depend too much on them in your application.
-
-	SetFgBg         string `json:"_setfgbg,omitempty"`    // setfgbg
-	SetFgBgRGB      string `json:"_setfgbgrgb,omitempty"` // setfgbgrgb
-	SetFgRGB        string `json:"_setfrgb,omitempty"`    // setfrgb
-	SetBgRGB        string `json:"_setbrgb,omitempty"`    // setbrgb
-	KeyShfUp        string `json:"_kscu1,omitempty"`      // shift-up
-	KeyShfDown      string `json:"_kscud1,omitempty"`     // shift-down
-	KeyCtrlUp       string `json:"_kccu1,omitempty"`      // ctrl-up
-	KeyCtrlDown     string `json:"_kccud1,omitempty"`     // ctrl-left
-	KeyCtrlRight    string `json:"_kccuf1,omitempty"`     // ctrl-right
-	KeyCtrlLeft     string `json:"_kccub1,omitempty"`     // ctrl-left
-	KeyMetaUp       string `json:"_kmcu1,omitempty"`      // meta-up
-	KeyMetaDown     string `json:"_kmcud1,omitempty"`     // meta-left
-	KeyMetaRight    string `json:"_kmcuf1,omitempty"`     // meta-right
-	KeyMetaLeft     string `json:"_kmcub1,omitempty"`     // meta-left
-	KeyAltUp        string `json:"_kacu1,omitempty"`      // alt-up
-	KeyAltDown      string `json:"_kacud1,omitempty"`     // alt-left
-	KeyAltRight     string `json:"_kacuf1,omitempty"`     // alt-right
-	KeyAltLeft      string `json:"_kacub1,omitempty"`     // alt-left
-	KeyCtrlHome     string `json:"_kchome,omitempty"`
-	KeyCtrlEnd      string `json:"_kcend,omitempty"`
-	KeyMetaHome     string `json:"_kmhome,omitempty"`
-	KeyMetaEnd      string `json:"_kmend,omitempty"`
-	KeyAltHome      string `json:"_kahome,omitempty"`
-	KeyAltEnd       string `json:"_kaend,omitempty"`
-	KeyAltShfUp     string `json:"_kascu1,omitempty"`
-	KeyAltShfDown   string `json:"_kascud1,omitempty"`
-	KeyAltShfLeft   string `json:"_kascub1,omitempty"`
-	KeyAltShfRight  string `json:"_kascuf1,omitempty"`
-	KeyMetaShfUp    string `json:"_kmscu1,omitempty"`
-	KeyMetaShfDown  string `json:"_kmscud1,omitempty"`
-	KeyMetaShfLeft  string `json:"_kmscub1,omitempty"`
-	KeyMetaShfRight string `json:"_kmscuf1,omitempty"`
-	KeyCtrlShfUp    string `json:"_kcscu1,omitempty"`
-	KeyCtrlShfDown  string `json:"_kcscud1,omitempty"`
-	KeyCtrlShfLeft  string `json:"_kcscub1,omitempty"`
-	KeyCtrlShfRight string `json:"_kcscuf1,omitempty"`
-	KeyCtrlShfHome  string `json:"_kcHOME,omitempty"`
-	KeyCtrlShfEnd   string `json:"_kcEND,omitempty"`
-	KeyAltShfHome   string `json:"_kaHOME,omitempty"`
-	KeyAltShfEnd    string `json:"_kaEND,omitempty"`
-	KeyMetaShfHome  string `json:"_kmHOME,omitempty"`
-	KeyMetaShfEnd   string `json:"_kmEND,omitempty"`
-}
-
-type stackElem struct {
-	s     string
-	i     int
-	isStr bool
-	isInt bool
-}
-
-type stack []stackElem
-
-func (st stack) Push(v string) stack {
-	e := stackElem{
-		s:     v,
-		isStr: true,
-	}
-	return append(st, e)
-}
-
-func (st stack) Pop() (string, stack) {
-	v := ""
-	if len(st) > 0 {
-		e := st[len(st)-1]
-		st = st[:len(st)-1]
-		if e.isStr {
-			v = e.s
-		} else {
-			v = strconv.Itoa(e.i)
-		}
-	}
-	return v, st
-}
-
-func (st stack) PopInt() (int, stack) {
-	if len(st) > 0 {
-		e := st[len(st)-1]
-		st = st[:len(st)-1]
-		if e.isInt {
-			return e.i, st
-		} else if e.isStr {
-			i, _ := strconv.Atoi(e.s)
-			return i, st
-		}
-	}
-	return 0, st
-}
-
-func (st stack) PopBool() (bool, stack) {
-	if len(st) > 0 {
-		e := st[len(st)-1]
-		st = st[:len(st)-1]
-		if e.isStr {
-			if e.s == "1" {
-				return true, st
-			}
-			return false, st
-		} else if e.i == 1 {
-			return true, st
-		} else {
-			return false, st
-		}
-	}
-	return false, st
-}
-
-func (st stack) PushInt(i int) stack {
-	e := stackElem{
-		i:     i,
-		isInt: true,
-	}
-	return append(st, e)
-}
-
-func (st stack) PushBool(i bool) stack {
-	if i {
-		return st.PushInt(1)
-	}
-	return st.PushInt(0)
-}
-
-func nextch(s string, index int) (byte, int) {
-	if index < len(s) {
-		return s[index], index + 1
-	}
-	return 0, index
-}
-
-// static vars
-var svars [26]string
-
-// paramsBuffer handles some persistent state for TParam.  Technically we
-// could probably dispense with this, but caching buffer arrays gives us
-// a nice little performance boost.  Furthermore, we know that TParam is
-// rarely (never?) called re-entrantly, so we can just reuse the same
-// buffers, making it thread-safe by stashing a lock.
-type paramsBuffer struct {
-	out bytes.Buffer
-	buf bytes.Buffer
-	lk  sync.Mutex
-}
-
-// Start initializes the params buffer with the initial string data.
-// It also locks the paramsBuffer.  The caller must call End() when
-// finished.
-func (pb *paramsBuffer) Start(s string) {
-	pb.lk.Lock()
-	pb.out.Reset()
-	pb.buf.Reset()
-	pb.buf.WriteString(s)
-}
-
-// End returns the final output from TParam, but it also releases the lock.
-func (pb *paramsBuffer) End() string {
-	s := pb.out.String()
-	pb.lk.Unlock()
-	return s
-}
-
-// NextCh returns the next input character to the expander.
-func (pb *paramsBuffer) NextCh() (byte, error) {
-	return pb.buf.ReadByte()
-}
-
-// PutCh "emits" (rather schedules for output) a single byte character.
-func (pb *paramsBuffer) PutCh(ch byte) {
-	pb.out.WriteByte(ch)
-}
-
-// PutString schedules a string for output.
-func (pb *paramsBuffer) PutString(s string) {
-	pb.out.WriteString(s)
-}
-
-var pb = &paramsBuffer{}
-
-// TParm takes a terminfo parameterized string, such as setaf or cup, and
-// evaluates the string, and returns the result with the parameter
-// applied.
-func (t *Terminfo) TParm(s string, p ...int) string {
-	var stk stack
-	var a, b string
-	var ai, bi int
-	var ab bool
-	var dvars [26]string
-	var params [9]int
-
-	pb.Start(s)
-
-	// make sure we always have 9 parameters -- makes it easier
-	// later to skip checks
-	for i := 0; i < len(params) && i < len(p); i++ {
-		params[i] = p[i]
-	}
-
-	nest := 0
-
-	for {
-
-		ch, err := pb.NextCh()
-		if err != nil {
-			break
-		}
-
-		if ch != '%' {
-			pb.PutCh(ch)
-			continue
-		}
-
-		ch, err = pb.NextCh()
-		if err != nil {
-			// XXX Error
-			break
-		}
-
-		switch ch {
-		case '%': // quoted %
-			pb.PutCh(ch)
-
-		case 'i': // increment both parameters (ANSI cup support)
-			params[0]++
-			params[1]++
-
-		case 'c', 's':
-			// NB: these, and 'd' below are special cased for
-			// efficiency.  They could be handled by the richer
-			// format support below, less efficiently.
-			a, stk = stk.Pop()
-			pb.PutString(a)
-
-		case 'd':
-			ai, stk = stk.PopInt()
-			pb.PutString(strconv.Itoa(ai))
-
-		case '0', '1', '2', '3', '4', 'x', 'X', 'o', ':':
-			// This is pretty suboptimal, but this is rarely used.
-			// None of the mainstream terminals use any of this,
-			// and it would surprise me if this code is ever
-			// executed outside of test cases.
-			f := "%"
-			if ch == ':' {
-				ch, _ = pb.NextCh()
-			}
-			f += string(ch)
-			for ch == '+' || ch == '-' || ch == '#' || ch == ' ' {
-				ch, _ = pb.NextCh()
-				f += string(ch)
-			}
-			for (ch >= '0' && ch <= '9') || ch == '.' {
-				ch, _ = pb.NextCh()
-				f += string(ch)
-			}
-			switch ch {
-			case 'd', 'x', 'X', 'o':
-				ai, stk = stk.PopInt()
-				pb.PutString(fmt.Sprintf(f, ai))
-			case 'c', 's':
-				a, stk = stk.Pop()
-				pb.PutString(fmt.Sprintf(f, a))
-			}
-
-		case 'p': // push parameter
-			ch, _ = pb.NextCh()
-			ai = int(ch - '1')
-			if ai >= 0 && ai < len(params) {
-				stk = stk.PushInt(params[ai])
-			} else {
-				stk = stk.PushInt(0)
-			}
-
-		case 'P': // pop & store variable
-			ch, _ = pb.NextCh()
-			if ch >= 'A' && ch <= 'Z' {
-				svars[int(ch-'A')], stk = stk.Pop()
-			} else if ch >= 'a' && ch <= 'z' {
-				dvars[int(ch-'a')], stk = stk.Pop()
-			}
-
-		case 'g': // recall & push variable
-			ch, _ = pb.NextCh()
-			if ch >= 'A' && ch <= 'Z' {
-				stk = stk.Push(svars[int(ch-'A')])
-			} else if ch >= 'a' && ch <= 'z' {
-				stk = stk.Push(dvars[int(ch-'a')])
-			}
-
-		case '\'': // push(char)
-			ch, _ = pb.NextCh()
-			pb.NextCh() // must be ' but we don't check
-			stk = stk.Push(string(ch))
-
-		case '{': // push(int)
-			ai = 0
-			ch, _ = pb.NextCh()
-			for ch >= '0' && ch <= '9' {
-				ai *= 10
-				ai += int(ch - '0')
-				ch, _ = pb.NextCh()
-			}
-			// ch must be '}' but no verification
-			stk = stk.PushInt(ai)
-
-		case 'l': // push(strlen(pop))
-			a, stk = stk.Pop()
-			stk = stk.PushInt(len(a))
-
-		case '+':
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai + bi)
-
-		case '-':
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai - bi)
-
-		case '*':
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai * bi)
-
-		case '/':
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			if bi != 0 {
-				stk = stk.PushInt(ai / bi)
-			} else {
-				stk = stk.PushInt(0)
-			}
-
-		case 'm': // push(pop mod pop)
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			if bi != 0 {
-				stk = stk.PushInt(ai % bi)
-			} else {
-				stk = stk.PushInt(0)
-			}
-
-		case '&': // AND
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai & bi)
-
-		case '|': // OR
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai | bi)
-
-		case '^': // XOR
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai ^ bi)
-
-		case '~': // bit complement
-			ai, stk = stk.PopInt()
-			stk = stk.PushInt(ai ^ -1)
-
-		case '!': // logical NOT
-			ai, stk = stk.PopInt()
-			stk = stk.PushBool(ai != 0)
-
-		case '=': // numeric compare or string compare
-			b, stk = stk.Pop()
-			a, stk = stk.Pop()
-			stk = stk.PushBool(a == b)
-
-		case '>': // greater than, numeric
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushBool(ai > bi)
-
-		case '<': // less than, numeric
-			bi, stk = stk.PopInt()
-			ai, stk = stk.PopInt()
-			stk = stk.PushBool(ai < bi)
-
-		case '?': // start conditional
-
-		case 't':
-			ab, stk = stk.PopBool()
-			if ab {
-				// just keep going
-				break
-			}
-			nest = 0
-		ifloop:
-			// this loop consumes everything until we hit our else,
-			// or the end of the conditional
-			for {
-				ch, err = pb.NextCh()
-				if err != nil {
-					break
-				}
-				if ch != '%' {
-					continue
-				}
-				ch, _ = pb.NextCh()
-				switch ch {
-				case ';':
-					if nest == 0 {
-						break ifloop
-					}
-					nest--
-				case '?':
-					nest++
-				case 'e':
-					if nest == 0 {
-						break ifloop
-					}
-				}
-			}
-
-		case 'e':
-			// if we got here, it means we didn't use the else
-			// in the 't' case above, and we should skip until
-			// the end of the conditional
-			nest = 0
-		elloop:
-			for {
-				ch, err = pb.NextCh()
-				if err != nil {
-					break
-				}
-				if ch != '%' {
-					continue
-				}
-				ch, _ = pb.NextCh()
-				switch ch {
-				case ';':
-					if nest == 0 {
-						break elloop
-					}
-					nest--
-				case '?':
-					nest++
-				}
-			}
-
-		case ';': // endif
-
-		}
-	}
-
-	return pb.End()
-}
-
-// TPuts emits the string to the writer, but expands inline padding
-// indications (of the form $<[delay]> where [delay] is msec) to
-// a suitable number of padding characters (usually null bytes) based
-// upon the supplied baud.  At high baud rates, more padding characters
-// will be inserted.  All Terminfo based strings should be emitted using
-// this function.
-func (t *Terminfo) TPuts(w io.Writer, s string, baud int) {
-	for {
-		beg := strings.Index(s, "$<")
-		if beg < 0 {
-			// Most strings don't need padding, which is good news!
-			io.WriteString(w, s)
-			return
-		}
-		io.WriteString(w, s[:beg])
-		s = s[beg+2:]
-		end := strings.Index(s, ">")
-		if end < 0 {
-			// unterminated.. just emit bytes unadulterated
-			io.WriteString(w, "$<"+s)
-			return
-		}
-		val := s[:end]
-		s = s[end+1:]
-		padus := 0
-		unit := 1000
-		dot := false
-	loop:
-		for i := range val {
-			switch val[i] {
-			case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
-				padus *= 10
-				padus += int(val[i] - '0')
-				if dot {
-					unit *= 10
-				}
-			case '.':
-				if !dot {
-					dot = true
-				} else {
-					break loop
-				}
-			default:
-				break loop
-			}
-		}
-		cnt := int(((baud / 8) * padus) / unit)
-		for cnt > 0 {
-			io.WriteString(w, t.PadChar)
-			cnt--
-		}
-	}
-}
-
-// TGoto returns a string suitable for addressing the cursor at the given
-// row and column.  The origin 0, 0 is in the upper left corner of the screen.
-func (t *Terminfo) TGoto(col, row int) string {
-	return t.TParm(t.SetCursor, row, col)
-}
-
-// TColor returns a string corresponding to the given foreground and background
-// colors.  Either fg or bg can be set to -1 to elide.
-func (t *Terminfo) TColor(fi, bi int) string {
-	rv := ""
-	// As a special case, we map bright colors to lower versions if the
-	// color table only holds 8.  For the remaining 240 colors, the user
-	// is out of luck.  Someday we could create a mapping table, but its
-	// not worth it.
-	if t.Colors == 8 {
-		if fi > 7 && fi < 16 {
-			fi -= 8
-		}
-		if bi > 7 && bi < 16 {
-			bi -= 8
-		}
-	}
-	if t.Colors > fi && fi >= 0 {
-		rv += t.TParm(t.SetFg, fi)
-	}
-	if t.Colors > bi && bi >= 0 {
-		rv += t.TParm(t.SetBg, bi)
-	}
-	return rv
-}
-
-var (
-	dblock    sync.Mutex
-	terminfos = make(map[string]*Terminfo)
-	aliases   = make(map[string]string)
-)
-
-// AddTerminfo can be called to register a new Terminfo entry.
-func AddTerminfo(t *Terminfo) {
-	dblock.Lock()
-	terminfos[t.Name] = t
-	for _, x := range t.Aliases {
-		terminfos[x] = t
-	}
-	dblock.Unlock()
-}
-
-func loadFromFile(fname string, term string) (*Terminfo, error) {
-	var e error
-	var f io.Reader
-	if f, e = os.Open(fname); e != nil {
-		return nil, e
-	}
-	if strings.HasSuffix(fname, ".gz") {
-		if f, e = gzip.NewReader(f); e != nil {
-			return nil, e
-		}
-	}
-	d := json.NewDecoder(f)
-	for {
-		t := &Terminfo{}
-		if e := d.Decode(t); e != nil {
-			if e == io.EOF {
-				return nil, ErrTermNotFound
-			}
-			return nil, e
-		}
-		if t.SetCursor == "" {
-			// This must be an alias record, return it.
-			return t, nil
-		}
-		if t.Name == term {
-			return t, nil
-		}
-		for _, a := range t.Aliases {
-			if a == term {
-				return t, nil
-			}
-		}
-	}
-}
-
-// LookupTerminfo attempts to find a definition for the named $TERM.
-// It first looks in the builtin database, which should cover just about
-// everyone.  If it can't find one there, then it will attempt to read
-// one from the JSON file located in either $TCELLDB, $HOME/.tcelldb
-// or in this package's source directory as database.json).
-func LookupTerminfo(name string) (*Terminfo, error) {
-	if name == "" {
-		// else on windows: index out of bounds
-		// on the name[0] reference below
-		return nil, ErrTermNotFound
-	}
-
-	dblock.Lock()
-	t := terminfos[name]
-	dblock.Unlock()
-
-	if t == nil {
-
-		var files []string
-		letter := fmt.Sprintf("%02x", name[0])
-		gzfile := path.Join(letter, name+".gz")
-		jsfile := path.Join(letter, name)
-
-		// Build up the search path.  Old versions of tcell used a
-		// single database file, whereas the new ones locate them
-		// in JSON (optionally compressed) files.
-		//
-		// The search path looks like:
-		//
-		// $TCELLDB/x/xterm.gz
-		// $TCELLDB/x/xterm
-		// $TCELLDB
-		// $HOME/.tcelldb/x/xterm.gz
-		// $HOME/.tcelldb/x/xterm
-		// $HOME/.tcelldb
-		// $GOPATH/terminfo/database/x/xterm.gz
-		// $GOPATH/terminfo/database/x/xterm
-		//
-		if pth := os.Getenv("TCELLDB"); pth != "" {
-			files = append(files, path.Join(pth, gzfile))
-			files = append(files, path.Join(pth, jsfile))
-			files = append(files, pth)
-		}
-		if pth := os.Getenv("HOME"); pth != "" {
-			pth = path.Join(pth, ".tcelldb")
-			files = append(files, path.Join(pth, gzfile))
-			files = append(files, path.Join(pth, jsfile))
-			files = append(files, pth)
-		}
-
-		for _, pth := range strings.Split(os.Getenv("GOPATH"), string(os.PathListSeparator)) {
-			pth = path.Join(pth, "src", "github.com", "gdamore", "tcell", "terminfo", "database")
-			files = append(files, path.Join(pth, gzfile))
-			files = append(files, path.Join(pth, jsfile))
-		}
-
-		for _, fname := range files {
-			t, _ = loadFromFile(fname, name)
-			if t != nil {
-				break
-			}
-		}
-		if t != nil {
-			if t.Name != name {
-				// Check for a database loop (no infinite
-				// recursion).
-				dblock.Lock()
-				if aliases[name] != "" {
-					dblock.Unlock()
-					return nil, ErrTermNotFound
-				}
-				aliases[name] = t.Name
-				dblock.Unlock()
-				return LookupTerminfo(t.Name)
-			}
-			dblock.Lock()
-			terminfos[name] = t
-			dblock.Unlock()
-		}
-	}
-	if t == nil {
-		return nil, ErrTermNotFound
-	}
-	return t, nil
-}

cmd/micro/terminfo/terminfo_test.go

@@ -1,194 +0,0 @@
-// Copyright 2016 The TCell Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use file except in compliance with the License.
-// You may obtain a copy of the license at
-//
-//    http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package terminfo
-
-import (
-	"bytes"
-	"os"
-	"testing"
-
-	. "github.com/smartystreets/goconvey/convey"
-)
-
-// This terminfo entry is a stripped down version from
-// xterm-256color, but I've added some of my own entries.
-var testTerminfo = &Terminfo{
-	Name:      "simulation_test",
-	Columns:   80,
-	Lines:     24,
-	Colors:    256,
-	Bell:      "\a",
-	Blink:     "\x1b2ms$<2>",
-	Reverse:   "\x1b[7m",
-	SetFg:     "\x1b[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m",
-	SetBg:     "\x1b[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m",
-	AltChars:  "``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~",
-	Mouse:     "\x1b[M",
-	MouseMode: "%?%p1%{1}%=%t%'h'%Pa%e%'l'%Pa%;\x1b[?1000%ga%c\x1b[?1003%ga%c\x1b[?1006%ga%c",
-	SetCursor: "\x1b[%i%p1%d;%p2%dH",
-	PadChar:   "\x00",
-}
-
-func TestTerminfo(t *testing.T) {
-
-	ti := testTerminfo
-
-	Convey("Terminfo parameter processing", t, func() {
-		// This tests %i, and basic parameter strings too
-		Convey("TGoto works", func() {
-			s := ti.TGoto(7, 9)
-			So(s, ShouldEqual, "\x1b[10;8H")
-		})
-
-		// This tests some conditionals
-		Convey("TParm extended formats work", func() {
-			s := ti.TParm("A[%p1%2.2X]B", 47)
-			So(s, ShouldEqual, "A[2F]B")
-		})
-
-		// This tests some conditionals
-		Convey("TParm colors work", func() {
-			s := ti.TParm(ti.SetFg, 7)
-			So(s, ShouldEqual, "\x1b[37m")
-
-			s = ti.TParm(ti.SetFg, 15)
-			So(s, ShouldEqual, "\x1b[97m")
-
-			s = ti.TParm(ti.SetFg, 200)
-			So(s, ShouldEqual, "\x1b[38;5;200m")
-		})
-
-		// This tests variables
-		Convey("TParm mouse mode works", func() {
-			s := ti.TParm(ti.MouseMode, 1)
-			So(s, ShouldEqual, "\x1b[?1000h\x1b[?1003h\x1b[?1006h")
-			s = ti.TParm(ti.MouseMode, 0)
-			So(s, ShouldEqual, "\x1b[?1000l\x1b[?1003l\x1b[?1006l")
-		})
-
-	})
-
-	Convey("Terminfo delay handling", t, func() {
-
-		Convey("19200 baud", func() {
-			buf := bytes.NewBuffer(nil)
-			ti.TPuts(buf, ti.Blink, 19200)
-			s := string(buf.Bytes())
-			So(s, ShouldEqual, "\x1b2ms\x00\x00\x00\x00")
-		})
-
-		Convey("50 baud", func() {
-			buf := bytes.NewBuffer(nil)
-			ti.TPuts(buf, ti.Blink, 50)
-			s := string(buf.Bytes())
-			So(s, ShouldEqual, "\x1b2ms")
-		})
-	})
-}
-
-func TestTerminfoDatabase(t *testing.T) {
-
-	Convey("Database Lookups work", t, func() {
-		Convey("Basic lookup works", func() {
-			os.Setenv("TCELLDB", "testdata/test1")
-			ti, err := LookupTerminfo("test1")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Columns, ShouldEqual, 80)
-
-			ti, err = LookupTerminfo("alias1")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Columns, ShouldEqual, 80)
-
-			os.Setenv("TCELLDB", "testdata")
-			ti, err = LookupTerminfo("test2")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Columns, ShouldEqual, 80)
-			So(len(ti.Aliases), ShouldEqual, 1)
-			So(ti.Aliases[0], ShouldEqual, "alias2")
-		})
-
-		Convey("Incorrect primary name works", func() {
-			os.Setenv("TCELLDB", "testdata")
-			ti, err := LookupTerminfo("test3")
-			So(err, ShouldNotBeNil)
-			So(ti, ShouldBeNil)
-		})
-
-		Convey("Loops fail", func() {
-			os.Setenv("TCELLDB", "testdata")
-			ti, err := LookupTerminfo("loop1")
-			So(ti, ShouldBeNil)
-			So(err, ShouldNotBeNil)
-		})
-
-		Convey("Gzip database works", func() {
-			os.Setenv("TCELLDB", "testdata")
-			ti, err := LookupTerminfo("test-gzip")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Columns, ShouldEqual, 80)
-		})
-
-		Convey("Gzip alias lookup works", func() {
-			os.Setenv("TCELLDB", "testdata")
-			ti, err := LookupTerminfo("alias-gzip")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Columns, ShouldEqual, 80)
-		})
-
-		Convey("Broken alias works", func() {
-			os.Setenv("TCELLDB", "testdata")
-			ti, err := LookupTerminfo("alias-none")
-			So(err, ShouldNotBeNil)
-			So(ti, ShouldBeNil)
-		})
-
-		Convey("Combined database works", func() {
-			os.Setenv("TCELLDB", "testdata/combined")
-			ti, err := LookupTerminfo("combined2")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Lines, ShouldEqual, 102)
-
-			ti, err = LookupTerminfo("alias-comb1")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Lines, ShouldEqual, 101)
-
-			ti, err = LookupTerminfo("combined3")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Lines, ShouldEqual, 103)
-
-			ti, err = LookupTerminfo("combined1")
-			So(err, ShouldBeNil)
-			So(ti, ShouldNotBeNil)
-			So(ti.Lines, ShouldEqual, 101)
-		})
-	})
-}
-
-func BenchmarkSetFgBg(b *testing.B) {
-	ti := testTerminfo
-
-	for i := 0; i < b.N; i++ {
-		ti.TParm(ti.SetFg, 100, 200)
-		ti.TParm(ti.SetBg, 100, 200)
-	}
-}

cmd/micro/util.go

@@ -1,400 +0,0 @@
-package main
-
-import (
-	"os"
-	"os/user"
-	"path/filepath"
-	"reflect"
-	"runtime"
-	"strconv"
-	"strings"
-	"time"
-	"unicode/utf8"
-
-	"github.com/go-errors/errors"
-	"github.com/mattn/go-runewidth"
-	"regexp"
-)
-
-// Util.go is a collection of utility functions that are used throughout
-// the program
-
-// Count returns the length of a string in runes
-// This is exactly equivalent to utf8.RuneCountInString(), just less characters
-func Count(s string) int {
-	return utf8.RuneCountInString(s)
-}
-
-// Convert byte array to rune array
-func toRunes(b []byte) []rune {
-	runes := make([]rune, 0, utf8.RuneCount(b))
-
-	for len(b) > 0 {
-		r, size := utf8.DecodeRune(b)
-		runes = append(runes, r)
-
-		b = b[size:]
-	}
-
-	return runes
-}
-
-func sliceStart(slc []byte, index int) []byte {
-	len := len(slc)
-	i := 0
-	totalSize := 0
-	for totalSize < len {
-		if i >= index {
-			return slc[totalSize:]
-		}
-
-		_, size := utf8.DecodeRune(slc[totalSize:])
-		totalSize += size
-		i++
-	}
-
-	return slc[totalSize:]
-}
-
-func sliceEnd(slc []byte, index int) []byte {
-	len := len(slc)
-	i := 0
-	totalSize := 0
-	for totalSize < len {
-		if i >= index {
-			return slc[:totalSize]
-		}
-
-		_, size := utf8.DecodeRune(slc[totalSize:])
-		totalSize += size
-		i++
-	}
-
-	return slc[:totalSize]
-}
-
-// NumOccurrences counts the number of occurrences of a byte in a string
-func NumOccurrences(s string, c byte) int {
-	var n int
-	for i := 0; i < len(s); i++ {
-		if s[i] == c {
-			n++
-		}
-	}
-	return n
-}
-
-// Spaces returns a string with n spaces
-func Spaces(n int) string {
-	return strings.Repeat(" ", n)
-}
-
-// Min takes the min of two ints
-func Min(a, b int) int {
-	if a > b {
-		return b
-	}
-	return a
-}
-
-// Max takes the max of two ints
-func Max(a, b int) int {
-	if a > b {
-		return a
-	}
-	return b
-}
-
-// FSize gets the size of a file
-func FSize(f *os.File) int64 {
-	fi, _ := f.Stat()
-	// get the size
-	return fi.Size()
-}
-
-// IsWordChar returns whether or not the string is a 'word character'
-// If it is a unicode character, then it does not match
-// Word characters are defined as [A-Za-z0-9_]
-func IsWordChar(str string) bool {
-	if len(str) > 1 {
-		// Unicode
-		return true
-	}
-	c := str[0]
-	return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c == '_')
-}
-
-// IsWhitespace returns true if the given rune is a space, tab, or newline
-func IsWhitespace(c rune) bool {
-	return c == ' ' || c == '\t' || c == '\n'
-}
-
-// IsStrWhitespace returns true if the given string is all whitespace
-func IsStrWhitespace(str string) bool {
-	for _, c := range str {
-		if !IsWhitespace(c) {
-			return false
-		}
-	}
-	return true
-}
-
-// Contains returns whether or not a string array contains a given string
-func Contains(list []string, a string) bool {
-	for _, b := range list {
-		if b == a {
-			return true
-		}
-	}
-	return false
-}
-
-// Insert makes a simple insert into a string at the given position
-func Insert(str string, pos int, value string) string {
-	return string([]rune(str)[:pos]) + value + string([]rune(str)[pos:])
-}
-
-// MakeRelative will attempt to make a relative path between path and base
-func MakeRelative(path, base string) (string, error) {
-	if len(path) > 0 {
-		rel, err := filepath.Rel(base, path)
-		if err != nil {
-			return path, err
-		}
-		return rel, nil
-	}
-	return path, nil
-}
-
-// GetLeadingWhitespace returns the leading whitespace of the given string
-func GetLeadingWhitespace(str string) string {
-	ws := ""
-	for _, c := range str {
-		if c == ' ' || c == '\t' {
-			ws += string(c)
-		} else {
-			break
-		}
-	}
-	return ws
-}
-
-// IsSpaces checks if a given string is only spaces
-func IsSpaces(str []byte) bool {
-	for _, c := range str {
-		if c != ' ' {
-			return false
-		}
-	}
-
-	return true
-}
-
-// IsSpacesOrTabs checks if a given string contains only spaces and tabs
-func IsSpacesOrTabs(str string) bool {
-	for _, c := range str {
-		if c != ' ' && c != '\t' {
-			return false
-		}
-	}
-
-	return true
-}
-
-// ParseBool is almost exactly like strconv.ParseBool, except it also accepts 'on' and 'off'
-// as 'true' and 'false' respectively
-func ParseBool(str string) (bool, error) {
-	if str == "on" {
-		return true, nil
-	}
-	if str == "off" {
-		return false, nil
-	}
-	return strconv.ParseBool(str)
-}
-
-// EscapePath replaces every path separator in a given path with a %
-func EscapePath(path string) string {
-	path = filepath.ToSlash(path)
-	return strings.Replace(path, "/", "%", -1)
-}
-
-// GetModTime returns the last modification time for a given file
-// It also returns a boolean if there was a problem accessing the file
-func GetModTime(path string) (time.Time, bool) {
-	info, err := os.Stat(path)
-	if err != nil {
-		return time.Now(), false
-	}
-	return info.ModTime(), true
-}
-
-// StringWidth returns the width of a string where tabs count as `tabsize` width
-func StringWidth(str string, tabsize int) int {
-	sw := runewidth.StringWidth(str)
-	lineIdx := 0
-	for _, ch := range str {
-		switch ch {
-		case '\t':
-			ts := tabsize - (lineIdx % tabsize)
-			sw += ts
-			lineIdx += ts
-		case '\n':
-			lineIdx = 0
-		default:
-			lineIdx++
-		}
-	}
-	return sw
-}
-
-// WidthOfLargeRunes searches all the runes in a string and counts up all the widths of runes
-// that have a width larger than 1 (this also counts tabs as `tabsize` width)
-func WidthOfLargeRunes(str string, tabsize int) int {
-	count := 0
-	lineIdx := 0
-	for _, ch := range str {
-		var w int
-		if ch == '\t' {
-			w = tabsize - (lineIdx % tabsize)
-		} else {
-			w = runewidth.RuneWidth(ch)
-		}
-		if w > 1 {
-			count += (w - 1)
-		}
-		if ch == '\n' {
-			lineIdx = 0
-		} else {
-			lineIdx += w
-		}
-	}
-	return count
-}
-
-// RunePos returns the rune index of a given byte index
-// This could cause problems if the byte index is between code points
-func runePos(p int, str string) int {
-	return utf8.RuneCountInString(str[:p])
-}
-
-func lcs(a, b string) string {
-	arunes := []rune(a)
-	brunes := []rune(b)
-
-	lcs := ""
-	for i, r := range arunes {
-		if i >= len(brunes) {
-			break
-		}
-		if r == brunes[i] {
-			lcs += string(r)
-		} else {
-			break
-		}
-	}
-	return lcs
-}
-
-// CommonSubstring gets a common substring among the inputs
-func CommonSubstring(arr ...string) string {
-	commonStr := arr[0]
-
-	for _, str := range arr[1:] {
-		commonStr = lcs(commonStr, str)
-	}
-
-	return commonStr
-}
-
-// Abs is a simple absolute value function for ints
-func Abs(n int) int {
-	if n < 0 {
-		return -n
-	}
-	return n
-}
-
-// FuncName returns the full name of a given function object
-func FuncName(i interface{}) string {
-	return runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
-}
-
-// ShortFuncName returns the name only of a given function object
-func ShortFuncName(i interface{}) string {
-	return strings.TrimPrefix(runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name(), "main.(*View).")
-}
-
-// ReplaceHome takes a path as input and replaces ~ at the start of the path with the user's
-// home directory. Does nothing if the path does not start with '~'.
-func ReplaceHome(path string) string {
-	if !strings.HasPrefix(path, "~") {
-		return path
-	}
-
-	var userData *user.User
-	var err error
-
-	homeString := strings.Split(path, "/")[0]
-	if homeString == "~" {
-		userData, err = user.Current()
-		if err != nil {
-			messenger.Error("Could not find user: ", err)
-		}
-	} else {
-		userData, err = user.Lookup(homeString[1:])
-		if err != nil {
-			if messenger != nil {
-				messenger.Error("Could not find user: ", err)
-			} else {
-				TermMessage("Could not find user: ", err)
-			}
-			return ""
-		}
-	}
-
-	home := userData.HomeDir
-
-	return strings.Replace(path, homeString, home, 1)
-}
-
-// GetPathAndCursorPosition returns a filename without everything following a `:`
-// This is used for opening files like util.go:10:5 to specify a line and column
-// Special cases like Windows Absolute path (C:\myfile.txt:10:5) are handled correctly.
-func GetPathAndCursorPosition(path string) (string, []string) {
-	re := regexp.MustCompile(`([\s\S]+?)(?::(\d+))(?::(\d+))?`)
-	match := re.FindStringSubmatch(path)
-	// no lines/columns were specified in the path, return just the path with no cursor location
-	if len(match) == 0 {
-		return path, nil
-	} else if match[len(match)-1] != "" {
-		// if the last capture group match isn't empty then both line and column were provided
-		return match[1], match[2:]
-	}
-	// if it was empty, then only a line was provided, so default to column 0
-	return match[1], []string{match[2], "0"}
-}
-
-func ParseCursorLocation(cursorPositions []string) (Loc, error) {
-	startpos := Loc{0, 0}
-	var err error
-
-	// if no positions are available exit early
-	if cursorPositions == nil {
-		return startpos, errors.New("No cursor positions were provided.")
-	}
-
-	startpos.Y, err = strconv.Atoi(cursorPositions[0])
-	if err != nil {
-		messenger.Error("Error parsing cursor position: ", err)
-	} else {
-		if len(cursorPositions) > 1 {
-			startpos.X, err = strconv.Atoi(cursorPositions[1])
-			if err != nil {
-				messenger.Error("Error parsing cursor position: ", err)
-			}
-		}
-	}
-
-	return startpos, err
-}

cmd/micro/util_test.go

@@ -1,331 +0,0 @@
-package main
-
-import (
-	"testing"
-)
-
-func TestNumOccurences(t *testing.T) {
-	var tests = []struct {
-		inputStr  string
-		inputChar byte
-		want      int
-	}{
-		{"aaaa", 'a', 4},
-		{"\trfd\ta", '\t', 2},
-		{"∆ƒ\tø ® \t\t", '\t', 3},
-	}
-	for _, test := range tests {
-		if got := NumOccurrences(test.inputStr, test.inputChar); got != test.want {
-			t.Errorf("NumOccurences(%s, %c) = %d", test.inputStr, test.inputChar, got)
-		}
-	}
-}
-
-func TestSpaces(t *testing.T) {
-	var tests = []struct {
-		input int
-		want  string
-	}{
-		{4, "    "},
-		{0, ""},
-	}
-	for _, test := range tests {
-		if got := Spaces(test.input); got != test.want {
-			t.Errorf("Spaces(%d) = \"%s\"", test.input, got)
-		}
-	}
-}
-
-func TestIsWordChar(t *testing.T) {
-	if IsWordChar("t") == false {
-		t.Errorf("IsWordChar(t) = false")
-	}
-	if IsWordChar("T") == false {
-		t.Errorf("IsWordChar(T) = false")
-	}
-	if IsWordChar("5") == false {
-		t.Errorf("IsWordChar(5) = false")
-	}
-	if IsWordChar("_") == false {
-		t.Errorf("IsWordChar(_) = false")
-	}
-	if IsWordChar("ß") == false {
-		t.Errorf("IsWordChar(ß) = false")
-	}
-	if IsWordChar("~") == true {
-		t.Errorf("IsWordChar(~) = true")
-	}
-	if IsWordChar(" ") == true {
-		t.Errorf("IsWordChar( ) = true")
-	}
-	if IsWordChar(")") == true {
-		t.Errorf("IsWordChar()) = true")
-	}
-	if IsWordChar("\n") == true {
-		t.Errorf("IsWordChar(\n)) = true")
-	}
-}
-
-func TestStringWidth(t *testing.T) {
-	tabsize := 4
-	if w := StringWidth("1\t2", tabsize); w != 5 {
-		t.Error("StringWidth 1 Failed. Got", w)
-	}
-	if w := StringWidth("\t", tabsize); w != 4 {
-		t.Error("StringWidth 2 Failed. Got", w)
-	}
-	if w := StringWidth("1\t", tabsize); w != 4 {
-		t.Error("StringWidth 3 Failed. Got", w)
-	}
-	if w := StringWidth("\t\t", tabsize); w != 8 {
-		t.Error("StringWidth 4 Failed. Got", w)
-	}
-	if w := StringWidth("12\t2\t", tabsize); w != 8 {
-		t.Error("StringWidth 5 Failed. Got", w)
-	}
-}
-
-func TestWidthOfLargeRunes(t *testing.T) {
-	tabsize := 4
-	if w := WidthOfLargeRunes("1\t2", tabsize); w != 2 {
-		t.Error("WidthOfLargeRunes 1 Failed. Got", w)
-	}
-	if w := WidthOfLargeRunes("\t", tabsize); w != 3 {
-		t.Error("WidthOfLargeRunes 2 Failed. Got", w)
-	}
-	if w := WidthOfLargeRunes("1\t", tabsize); w != 2 {
-		t.Error("WidthOfLargeRunes 3 Failed. Got", w)
-	}
-	if w := WidthOfLargeRunes("\t\t", tabsize); w != 6 {
-		t.Error("WidthOfLargeRunes 4 Failed. Got", w)
-	}
-	if w := WidthOfLargeRunes("12\t2\t", tabsize); w != 3 {
-		t.Error("WidthOfLargeRunes 5 Failed. Got", w)
-	}
-}
-
-func assertEqual(t *testing.T, expected interface{}, result interface{}) {
-	if expected != result {
-		t.Fatalf("Expected: %d != Got: %d", expected, result)
-	}
-}
-
-func assertTrue(t *testing.T, condition bool) {
-	if !condition {
-		t.Fatalf("Condition was not true. Got false")
-	}
-}
-
-func TestGetPathRelativeWithDot(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("./myfile:10:5")
-
-	assertEqual(t, path, "./myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "5", cursorPosition[1])
-}
-func TestGetPathRelativeWithDotWindows(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition(".\\myfile:10:5")
-
-	assertEqual(t, path, ".\\myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, cursorPosition[1], "5")
-}
-func TestGetPathRelativeNoDot(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("myfile:10:5")
-
-	assertEqual(t, path, "myfile")
-	assertEqual(t, "10", cursorPosition[0])
-
-	assertEqual(t, cursorPosition[1], "5")
-}
-func TestGetPathAbsoluteWindows(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("C:\\myfile:10:5")
-
-	assertEqual(t, path, "C:\\myfile")
-	assertEqual(t, "10", cursorPosition[0])
-
-	assertEqual(t, cursorPosition[1], "5")
-
-	path, cursorPosition = GetPathAndCursorPosition("C:/myfile:10:5")
-
-	assertEqual(t, path, "C:/myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "5", cursorPosition[1])
-}
-
-func TestGetPathAbsoluteUnix(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("/home/user/myfile:10:5")
-
-	assertEqual(t, path, "/home/user/myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "5", cursorPosition[1])
-}
-
-func TestGetPathRelativeWithDotWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("./myfile")
-
-	assertEqual(t, path, "./myfile")
-	// no cursor position in filename, nil should be returned
-	assertTrue(t, cursorPosition == nil)
-}
-func TestGetPathRelativeWithDotWindowsWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition(".\\myfile")
-
-	assertEqual(t, path, ".\\myfile")
-	assertTrue(t, cursorPosition == nil)
-
-}
-func TestGetPathRelativeNoDotWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("myfile")
-
-	assertEqual(t, path, "myfile")
-	assertTrue(t, cursorPosition == nil)
-
-}
-func TestGetPathAbsoluteWindowsWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("C:\\myfile")
-
-	assertEqual(t, path, "C:\\myfile")
-	assertTrue(t, cursorPosition == nil)
-
-	path, cursorPosition = GetPathAndCursorPosition("C:/myfile")
-
-	assertEqual(t, path, "C:/myfile")
-	assertTrue(t, cursorPosition == nil)
-
-}
-func TestGetPathAbsoluteUnixWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("/home/user/myfile")
-
-	assertEqual(t, path, "/home/user/myfile")
-	assertTrue(t, cursorPosition == nil)
-
-}
-func TestGetPathSingleLetterFileRelativePath(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("a:5:6")
-
-	assertEqual(t, path, "a")
-	assertEqual(t, "5", cursorPosition[0])
-	assertEqual(t, "6", cursorPosition[1])
-}
-func TestGetPathSingleLetterFileAbsolutePathWindows(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("C:\\a:5:6")
-
-	assertEqual(t, path, "C:\\a")
-	assertEqual(t, "5", cursorPosition[0])
-	assertEqual(t, "6", cursorPosition[1])
-
-	path, cursorPosition = GetPathAndCursorPosition("C:/a:5:6")
-
-	assertEqual(t, path, "C:/a")
-	assertEqual(t, "5", cursorPosition[0])
-	assertEqual(t, "6", cursorPosition[1])
-}
-func TestGetPathSingleLetterFileAbsolutePathUnix(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("/home/user/a:5:6")
-
-	assertEqual(t, path, "/home/user/a")
-	assertEqual(t, "5", cursorPosition[0])
-	assertEqual(t, "6", cursorPosition[1])
-}
-func TestGetPathSingleLetterFileAbsolutePathWindowsWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("C:\\a")
-
-	assertEqual(t, path, "C:\\a")
-	assertTrue(t, cursorPosition == nil)
-
-	path, cursorPosition = GetPathAndCursorPosition("C:/a")
-
-	assertEqual(t, path, "C:/a")
-	assertTrue(t, cursorPosition == nil)
-
-}
-func TestGetPathSingleLetterFileAbsolutePathUnixWithoutLineAndColumn(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("/home/user/a")
-
-	assertEqual(t, path, "/home/user/a")
-	assertTrue(t, cursorPosition == nil)
-
-}
-
-func TestGetPathRelativeWithDotOnlyLine(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("./myfile:10")
-
-	assertEqual(t, path, "./myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-}
-func TestGetPathRelativeWithDotWindowsOnlyLine(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition(".\\myfile:10")
-
-	assertEqual(t, path, ".\\myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-}
-func TestGetPathRelativeNoDotOnlyLine(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("myfile:10")
-
-	assertEqual(t, path, "myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-}
-func TestGetPathAbsoluteWindowsOnlyLine(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("C:\\myfile:10")
-
-	assertEqual(t, path, "C:\\myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-
-	path, cursorPosition = GetPathAndCursorPosition("C:/myfile:10")
-
-	assertEqual(t, path, "C:/myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-}
-func TestGetPathAbsoluteUnixOnlyLine(t *testing.T) {
-	path, cursorPosition := GetPathAndCursorPosition("/home/user/myfile:10")
-
-	assertEqual(t, path, "/home/user/myfile")
-	assertEqual(t, "10", cursorPosition[0])
-	assertEqual(t, "0", cursorPosition[1])
-}
-func TestParseCursorLocationOneArg(t *testing.T) {
-	location, err := ParseCursorLocation([]string{"3"})
-
-	assertEqual(t, 3, location.Y)
-	assertEqual(t, 0, location.X)
-	assertEqual(t, nil, err)
-}
-func TestParseCursorLocationTwoArgs(t *testing.T) {
-	location, err := ParseCursorLocation([]string{"3", "15"})
-
-	assertEqual(t, 3, location.Y)
-	assertEqual(t, 15, location.X)
-	assertEqual(t, nil, err)
-}
-func TestParseCursorLocationNoArgs(t *testing.T) {
-	location, err := ParseCursorLocation(nil)
-	// the expected result is the start position - 0, 0
-	assertEqual(t, 0, location.Y)
-	assertEqual(t, 0, location.X)
-	// an error will be present here as the positions we're parsing are a nil
-	assertTrue(t, err != nil)
-}
-func TestParseCursorLocationFirstArgNotValidNumber(t *testing.T) {
-	// the messenger is necessary as ParseCursorLocation
-	// puts a message in it on error
-	messenger = new(Messenger)
-	_, err := ParseCursorLocation([]string{"apples", "1"})
-	// the expected result is the start position - 0, 0
-	assertTrue(t, messenger.hasMessage)
-	assertTrue(t, err != nil)
-}
-func TestParseCursorLocationSecondArgNotValidNumber(t *testing.T) {
-	// the messenger is necessary as ParseCursorLocation
-	// puts a message in it on error
-	messenger = new(Messenger)
-	_, err := ParseCursorLocation([]string{"1", "apples"})
-	// the expected result is the start position - 0, 0
-	assertTrue(t, messenger.hasMessage)
-	assertTrue(t, err != nil)
-}

data/com.github.zyedidia.micro.metainfo.xml

@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<component>
-	<id>com.github.zyedidia.micro</id>
-	<name>Micro Text Editor</name>
-	<summary>A modern and intuitive terminal-based text editor</summary>
-	<metadata_license>MIT</metadata_license>
-	<categories>
-		<category>Development</category>
-		<category>TextEditor</category>
-	</categories>
-	<provides>
-	​	<binary>micro</binary>
-	​</provides>
-	​<developer_name>Zachary Yedidia</developer_name>
-	<screenshots>
-	​	<screenshot type="default">
-	​		<caption>Micro Text Editor editing its source code.</caption>
-	​		<image type="source">https://raw.githubusercontent.com/zyedidia/micro/master/assets/micro-solarized.png</image>
-	​	</screenshot>
-	​</screenshots>
-	<url type="homepage">https://micro-editor.github.io</url>
-	<url type="bugtracker">https://github.com/zyedidia/micro/issues</url>
-​</component>

data/io.github.zyedidia.micro.metainfo.xml

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+	<id>io.github.zyedidia.micro</id>
+	<launchable type="desktop-id">micro.desktop</launchable>
+	<name>Micro Text Editor</name>
+	<summary>A modern and intuitive terminal-based text editor</summary>
+	<description>
+		<p>
+			micro is a terminal-based text editor that aims to be easy to use and
+			intuitive, while also taking advantage of the capabilities of modern terminals.
+			It comes as a single, batteries-included, static binary with no dependencies;
+			you can download and use it right now!
+		</p>
+		<p>
+			As its name indicates, micro aims to be somewhat of a successor to the nano
+			editor by being easy to install and use. It strives to be enjoyable as a full-time
+			editor for people who prefer to work in a terminal, or those who regularly
+			edit files over SSH.
+		</p>
+	</description>
+	<metadata_license>MIT</metadata_license>
+	<project_license>MIT</project_license>
+	<categories>
+		<category>Development</category>
+		<category>TextEditor</category>
+	</categories>
+	<releases>
+			<release version="2.0.11" date="2022-08-01"/>
+	</releases>
+	<provides>
+		<binary>micro</binary>
+		<id>com.github.zyedidia.micro</id>
+	</provides>
+	<developer_name>Zachary Yedidia</developer_name>
+	<screenshots>
+		<screenshot type="default">
+			<caption>Micro Text Editor editing its source code</caption>
+			<image type="source">https://raw.githubusercontent.com/zyedidia/micro/master/assets/micro-solarized.png</image>
+		</screenshot>
+	</screenshots>
+	<content_rating type="oars-1.1" />
+	<url type="homepage">https://micro-editor.github.io</url>
+	<url type="bugtracker">https://github.com/zyedidia/micro/issues</url>
+	<url type="faq">https://micro-editor.github.io/about.html</url>
+	<url type="help">https://micro-editor.github.io/about.html</url>
+	<url type="contact">https://github.com/zyedidia</url>
+	<url type="vcs-browser">https://github.com/zyedidia/micro</url>
+	<url type="contribute">https://github.com/zyedidia/micro#contributing</url>
+</component>

data/micro.json

@@ -0,0 +1,358 @@
+{
+    "$comment": "https://github.com/zyedidia/micro",
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "options",
+    "description": "A micro editor config schema",
+    "type": "object",
+    "properties": {
+        "autoindent": {
+            "description": "Whether to use the same indentation as a previous line\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "autosave": {
+            "description": "A delay between automatic saves\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "integer",
+            "minimum": 0,
+            "default": 0
+        },
+        "autosu": {
+            "description": "Whether attempt to use super user privileges\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "backup": {
+            "description": "Whether to backup all open buffers\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "backupdir": {
+            "description": "A directory to store backups\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": ""
+        },
+        "basename": {
+            "description": "Whether to show a basename instead of a full path\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "clipboard": {
+            "description": "A way to access the system clipboard\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "enum": [
+                "external",
+                "terminal",
+                "internal"
+            ],
+            "default": "external"
+        },
+        "colorcolumn": {
+            "description": "A position to display a column\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "integer",
+            "minimum": 0,
+            "default": 0
+        },
+        "colorscheme": {
+            "description": "A color scheme\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "enum": [
+                "atom-dark",
+                "bubblegum",
+                "cmc-16",
+                "cmc-tc",
+                "darcula",
+                "default",
+                "dracula-tc",
+                "dukedark-tc",
+                "dukelight-tc",
+                "dukeubuntu-tc",
+                "geany",
+                "gotham",
+                "gruvbox",
+                "gruvbox-tc",
+                "material-tc",
+                "monokai-dark",
+                "monokai",
+                "one-dark",
+                "railscast",
+                "simple",
+                "solarized",
+                "solarized-tc",
+                "sunny-day",
+                "twilight",
+                "zenburn"
+            ],
+            "default": "default"
+        },
+        "cursorline": {
+            "description": "Whether to highlight a line with a cursor with a different color\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "diffgutter": {
+            "description": "Whether to display diff inticators before lines\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "divchars": {
+            "description": "Divider chars for vertical and horizontal splits\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "|-"
+        },
+        "divreverse": {
+            "description": "Whether to use inversed color scheme colors for splits\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "encoding": {
+            "description": "An encoding used to open and save files\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "utf-8"
+        },
+        "eofnewline": {
+            "description": "Whether to add a missing trailing new line\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "fastdirty": {
+            "description": "Whether to use a fast algorithm to determine whether a file is changed\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "fileformat": {
+            "description": "A line ending format\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "enum": [
+                "unix",
+                "dos"
+            ],
+            "default": "unix"
+        },
+        "filetype": {
+            "description": "A filetype for the current buffer\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "unknown"
+        },
+        "hlsearch": {
+            "description": "Whether to highlight all instances of a searched text after a successful search\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "incsearch": {
+            "description": "Whether to enable an incremental search in `Find` prompt\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "ignorecase": {
+            "description": "Whether to perform case-insensitive searches\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "indentchar": {
+            "description": "An indentation character\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "maxLength": 1,
+            "default": " "
+        },
+        "infobar": {
+            "description": "Whether to enable a line at the bottom where messages are printed\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "keepautoindent": {
+            "description": "Whether add a whitespace while using autoindent\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "keymenu": {
+            "description": "Whether to display nano-style key menu at the bottom\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "matchbrace": {
+            "description": "Whether to underline matching braces\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "mkparents": {
+            "description": "Whether to create missing directories\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "mouse": {
+            "description": "Whether to enable mouse support\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "paste": {
+            "description": "Whether to treat characters sent from the terminal in a single chunk as a paste event\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "parsecursor": {
+            "description": "Whether to extract a line number and a column to open files with from file names\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "permbackup": {
+            "description": "Whether to permanently save backups\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "pluginchannels": {
+            "description": "A file with list of plugin channels\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json"
+        },
+        "pluginrepos": {
+            "description": "Plugin repositories\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "array",
+            "uniqueItems": true,
+            "items": {
+                "description": "A pluging repository\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+                "type": "string"
+            },
+            "default": []
+        },
+        "readonly": {
+            "description": "Whether to forbid buffer editing\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "rmtrailingws": {
+            "description": "Whether to remove trailing whitespaces\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "ruler": {
+            "description": "Whether to display line numbers\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "relativeruler": {
+            "description": "Whether to display relative line numbers\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "savecursor": {
+            "description": "Whether to save cursor position in files\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "savehistory": {
+            "description": "Whether to save command history between closing and re-opening editor\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "saveundo": {
+            "description": "Whether to save undo after closing file\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "scrollbar": {
+            "description": "Whether to save undo after closing file\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "scrollmargin": {
+            "description": "A margin at which a view starts scrolling when a cursor approaches an edge of a view\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "integer",
+            "default": 3
+        },
+        "scrollspeed": {
+            "description": "Line count to scroll for one scroll event\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "integer",
+            "default": 2
+        },
+        "smartpaste": {
+            "description": "Whether to add a leading whitespace while pasting multiple lines\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "softwrap": {
+            "description": "Whether to wrap long lines\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "splitbottom": {
+            "description": "Whether to create a new horizontal split below the current one\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "splitright": {
+            "description": "Whether to create a new vertical split right of the current one\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "statusformatl": {
+            "description": "Format string of left-justified part of the statusline\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "$(filename) $(modified)($(line),$(col)) $(status.paste)| ft:$(opt:filetype) | $(opt:fileformat) | $(opt:encoding)"
+        },
+        "statusformatr": {
+            "description": "Format string of right-justified part of the statusline\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "$(bind:ToggleKeyMenu): bindings, $(bind:ToggleHelp): help"
+        },
+        "statusline": {
+            "description": "Whether to display a status line\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "sudo"
+        },
+        "sucmd": {
+            "description": "A super user command\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "string",
+            "default": "sudo",
+            "examples": [
+                "sudo",
+                "doas"
+            ]
+        },
+        "syntax": {
+            "description": "Whether to enable a syntax highlighting\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "tabmovement": {
+            "description": "Whether to navigate spaces at the beginning of lines as if they are tabs\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "tabhighlight": {
+            "description": "Whether to invert tab character colors\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "tabreverse": {
+            "description": "Whether to reverse tab bar colors\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "tabsize": {
+            "description": "A tab size\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "integer",
+            "default": 4
+        },
+        "tabstospaces": {
+            "description": "Whether to use spaces instead of tabs\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "useprimary": {
+            "description": "Whether to use primary clipboard to copy selections in the background\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": true
+        },
+        "wordwrap": {
+            "description": "Whether to wrap long lines by words\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        },
+        "xterm": {
+            "description": "Whether to assume that the current terminal is `xterm`\nhttps://github.com/zyedidia/micro/blob/master/runtime/help/options.md#options",
+            "type": "boolean",
+            "default": false
+        }
+    },
+    "additionalProperties": false
+}

go.mod

@@ -0,0 +1,30 @@
+module github.com/zyedidia/micro/v2
+
+require (
+	github.com/blang/semver v3.5.1+incompatible
+	github.com/dustin/go-humanize v1.0.0
+	github.com/go-errors/errors v1.0.1
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
+	github.com/mattn/go-isatty v0.0.11
+	github.com/mattn/go-runewidth v0.0.7
+	github.com/mitchellh/go-homedir v1.1.0
+	github.com/sergi/go-diff v1.1.0
+	github.com/stretchr/testify v1.4.0
+	github.com/yuin/gopher-lua v0.0.0-20191220021717-ab39c6098bdb
+	github.com/zyedidia/clipper v0.1.1
+	github.com/zyedidia/glob v0.0.0-20170209203856-dd4023a66dc3
+	github.com/zyedidia/json5 v0.0.0-20200102012142-2da050b1a98d
+	github.com/zyedidia/tcell/v2 v2.0.10 // indirect
+	github.com/zyedidia/terminal v0.0.0-20230315200948-4b3bcf6dddef
+	golang.org/x/text v0.3.8
+	gopkg.in/yaml.v2 v2.2.8
+	layeh.com/gopher-luar v1.0.7
+)
+
+replace github.com/kballard/go-shellquote => github.com/zyedidia/go-shellquote v0.0.0-20200613203517-eccd813c0655
+
+replace github.com/mattn/go-runewidth => github.com/zyedidia/go-runewidth v0.0.12
+
+replace layeh.com/gopher-luar => github.com/layeh/gopher-luar v1.0.7
+
+go 1.16

go.sum

@@ -0,0 +1,103 @@
+github.com/blang/semver v3.5.1+incompatible h1:cQNTCjp13qL8KC3Nbxr/y2Bqb63oX6wdnnjpJbkM4JQ=
+github.com/blang/semver v3.5.1+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
+github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
+github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
+github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
+github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.0 h1:VSnTsYCnlFHaM2/igO1h6X3HA71jcobQuxemgkq4zYo=
+github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6w=
+github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/layeh/gopher-luar v1.0.7 h1:wnfZhYiJM748y1A4qYBfcFeMY9HWbdERny+ZL0f/jWc=
+github.com/layeh/gopher-luar v1.0.7/go.mod h1:TPnIVCZ2RJBndm7ohXyaqfhzjlZ+OA2SZR/YwL8tECk=
+github.com/lucasb-eyer/go-colorful v1.0.3 h1:QIbQXiugsb+q10B+MI+7DI1oQLdmnep86tWFlaaUAac=
+github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.11 h1:FxPOTFNqGkuDUGi3H/qkUbQO4ZiBa2brKq5r0l8TGeM=
+github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
+github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
+github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.1.0 h1:+2KBaVoUmb9XzDsrx/Ct0W/EYOSFf/nWTauy++DprtY=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
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+github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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+github.com/xo/terminfo v0.0.0-20200218205459-454e5b68f9e8/go.mod h1:6Yhx5ZJl5942QrNRWLwITArVT9okUXc5c3brgWJMoDc=
+github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+github.com/yuin/gopher-lua v0.0.0-20190206043414-8bfc7677f583/go.mod h1:gqRgreBUhTSL0GeU64rtZ3Uq3wtjOa/TB2YfrtkCbVQ=
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+github.com/zyedidia/clipper v0.1.1/go.mod h1:7YApPNiiTZTXdKKZG92G50qj6mnWEX975Sdu65J7YpQ=
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+github.com/zyedidia/poller v1.0.1 h1:Tt9S3AxAjXwWGNiC2TUdRJkQDZSzCBNVQ4xXiQ7440s=
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internal/action/actions_other.go

@@ -0,0 +1,8 @@
+// +build plan9 nacl windows
+
+package action
+
+func (*BufPane) Suspend() bool {
+	InfoBar.Error("Suspend is only supported on BSD/Linux")
+	return false
+}

internal/action/actions_posix.go

@@ -1,37 +1,27 @@
 // +build linux darwin dragonfly solaris openbsd netbsd freebsd
 
-package main
+package action
 
-import "syscall"
+import (
+	"syscall"
+
+	"github.com/zyedidia/micro/v2/internal/screen"
+)
 
 // Suspend sends micro to the background. This is the same as pressing CtrlZ in most unix programs.
 // This only works on linux and has no default binding.
 // This code was adapted from the suspend code in nsf/godit
-func (v *View) Suspend(usePlugin bool) bool {
-	if usePlugin && !PreActionCall("Suspend", v) {
-		return false
-	}
-
-	screenWasNil := screen == nil
-
-	if !screenWasNil {
-		screen.Fini()
-		screen = nil
-	}
+func (*BufPane) Suspend() bool {
+	screenb := screen.TempFini()
 
 	// suspend the process
 	pid := syscall.Getpid()
 	err := syscall.Kill(pid, syscall.SIGSTOP)
 	if err != nil {
-		TermMessage(err)
+		screen.TermMessage(err)
 	}
 
-	if !screenWasNil {
-		InitScreen()
-	}
+	screen.TempStart(screenb)
 
-	if usePlugin {
-		return PostActionCall("Suspend", v)
-	}
-	return true
+	return false
 }

internal/action/bindings.go

@@ -0,0 +1,478 @@
+package action
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+	"unicode"
+
+	"github.com/zyedidia/json5"
+	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/tcell/v2"
+)
+
+var Binder = map[string]func(e Event, action string){
+	"command":  InfoMapEvent,
+	"buffer":   BufMapEvent,
+	"terminal": TermMapEvent,
+}
+
+func createBindingsIfNotExist(fname string) {
+	if _, e := os.Stat(fname); os.IsNotExist(e) {
+		ioutil.WriteFile(fname, []byte("{}"), 0644)
+	}
+}
+
+// InitBindings intializes the bindings map by reading from bindings.json
+func InitBindings() {
+	var parsed map[string]interface{}
+
+	filename := filepath.Join(config.ConfigDir, "bindings.json")
+	createBindingsIfNotExist(filename)
+
+	if _, e := os.Stat(filename); e == nil {
+		input, err := ioutil.ReadFile(filename)
+		if err != nil {
+			screen.TermMessage("Error reading bindings.json file: " + err.Error())
+			return
+		}
+
+		err = json5.Unmarshal(input, &parsed)
+		if err != nil {
+			screen.TermMessage("Error reading bindings.json:", err.Error())
+		}
+	}
+
+	for p, bind := range Binder {
+		defaults := DefaultBindings(p)
+
+		for k, v := range defaults {
+			BindKey(k, v, bind)
+		}
+	}
+
+	for k, v := range parsed {
+		switch val := v.(type) {
+		case string:
+			BindKey(k, val, Binder["buffer"])
+		case map[string]interface{}:
+			bind, ok := Binder[k]
+			if !ok || bind == nil {
+				screen.TermMessage(fmt.Sprintf("%s is not a valid pane type", k))
+				continue
+			}
+			for e, a := range val {
+				s, ok := a.(string)
+				if !ok {
+					screen.TermMessage("Error reading bindings.json: non-string and non-map entry", k)
+				} else {
+					BindKey(e, s, bind)
+				}
+			}
+		default:
+			screen.TermMessage("Error reading bindings.json: non-string and non-map entry", k)
+		}
+	}
+}
+
+func BindKey(k, v string, bind func(e Event, a string)) {
+	event, err := findEvent(k)
+	if err != nil {
+		screen.TermMessage(err)
+		return
+	}
+
+	bind(event, v)
+
+	// switch e := event.(type) {
+	// case KeyEvent:
+	// 	InfoMapKey(e, v)
+	// case KeySequenceEvent:
+	// 	InfoMapKey(e, v)
+	// case MouseEvent:
+	// 	InfoMapMouse(e, v)
+	// case RawEvent:
+	// 	InfoMapKey(e, v)
+	// }
+}
+
+var r = regexp.MustCompile("<(.+?)>")
+
+func findEvents(k string) (b KeySequenceEvent, ok bool, err error) {
+	var events []Event = nil
+	for len(k) > 0 {
+		groups := r.FindStringSubmatchIndex(k)
+
+		if len(groups) > 3 {
+			if events == nil {
+				events = make([]Event, 0, 3)
+			}
+
+			e, ok := findSingleEvent(k[groups[2]:groups[3]])
+			if !ok {
+				return KeySequenceEvent{}, false, errors.New("Invalid event " + k[groups[2]:groups[3]])
+			}
+
+			events = append(events, e)
+
+			k = k[groups[3]+1:]
+		} else {
+			return KeySequenceEvent{}, false, nil
+		}
+	}
+
+	return KeySequenceEvent{events}, true, nil
+}
+
+// findSingleEvent will find binding Key 'b' using string 'k'
+func findSingleEvent(k string) (b Event, ok bool) {
+	modifiers := tcell.ModNone
+
+	// First, we'll strip off all the modifiers in the name and add them to the
+	// ModMask
+modSearch:
+	for {
+		switch {
+		case strings.HasPrefix(k, "-") && k != "-":
+			// We optionally support dashes between modifiers
+			k = k[1:]
+		case strings.HasPrefix(k, "Ctrl") && k != "CtrlH":
+			// CtrlH technically does not have a 'Ctrl' modifier because it is really backspace
+			k = k[4:]
+			modifiers |= tcell.ModCtrl
+		case strings.HasPrefix(k, "Alt"):
+			k = k[3:]
+			modifiers |= tcell.ModAlt
+		case strings.HasPrefix(k, "Shift"):
+			k = k[5:]
+			modifiers |= tcell.ModShift
+		case strings.HasPrefix(k, "\x1b"):
+			screen.Screen.RegisterRawSeq(k)
+			return RawEvent{
+				esc: k,
+			}, true
+		default:
+			break modSearch
+		}
+	}
+
+	if k == "" {
+		return KeyEvent{}, false
+	}
+
+	// Control is handled in a special way, since the terminal sends explicitly
+	// marked escape sequences for control keys
+	// We should check for Control keys first
+	if modifiers&tcell.ModCtrl != 0 {
+		// see if the key is in bindingKeys with the Ctrl prefix.
+		k = string(unicode.ToUpper(rune(k[0]))) + k[1:]
+		if code, ok := keyEvents["Ctrl"+k]; ok {
+			var r tcell.Key
+			// Special case for escape, for some reason tcell doesn't send it with the esc character
+			if code < 256 && code != 27 {
+				r = code
+			}
+			// It is, we're done.
+			return KeyEvent{
+				code: code,
+				mod:  modifiers,
+				r:    rune(r),
+			}, true
+		}
+	}
+
+	// See if we can find the key in bindingKeys
+	if code, ok := keyEvents[k]; ok {
+		var r tcell.Key
+		// Special case for escape, for some reason tcell doesn't send it with the esc character
+		if code < 256 && code != 27 {
+			r = code
+		}
+		return KeyEvent{
+			code: code,
+			mod:  modifiers,
+			r:    rune(r),
+		}, true
+	}
+
+	// See if we can find the key in bindingMouse
+	if code, ok := mouseEvents[k]; ok {
+		return MouseEvent{
+			btn: code,
+			mod: modifiers,
+		}, true
+	}
+
+	// If we were given one character, then we've got a rune.
+	if len(k) == 1 {
+		return KeyEvent{
+			code: tcell.KeyRune,
+			mod:  modifiers,
+			r:    rune(k[0]),
+		}, true
+	}
+
+	// We don't know what happened.
+	return KeyEvent{}, false
+}
+
+func findEvent(k string) (Event, error) {
+	var event Event
+	event, ok, err := findEvents(k)
+	if err != nil {
+		return nil, err
+	}
+
+	if !ok {
+		event, ok = findSingleEvent(k)
+		if !ok {
+			return nil, errors.New(k + " is not a bindable event")
+		}
+	}
+
+	return event, nil
+}
+
+// TryBindKey tries to bind a key by writing to config.ConfigDir/bindings.json
+// Returns true if the keybinding already existed and a possible error
+func TryBindKey(k, v string, overwrite bool) (bool, error) {
+	var e error
+	var parsed map[string]interface{}
+
+	filename := filepath.Join(config.ConfigDir, "bindings.json")
+	createBindingsIfNotExist(filename)
+	if _, e = os.Stat(filename); e == nil {
+		input, err := ioutil.ReadFile(filename)
+		if err != nil {
+			return false, errors.New("Error reading bindings.json file: " + err.Error())
+		}
+
+		err = json5.Unmarshal(input, &parsed)
+		if err != nil {
+			return false, errors.New("Error reading bindings.json: " + err.Error())
+		}
+
+		key, err := findEvent(k)
+		if err != nil {
+			return false, err
+		}
+
+		found := false
+		for ev := range parsed {
+			if e, err := findEvent(ev); err == nil {
+				if e == key {
+					if overwrite {
+						parsed[ev] = v
+					}
+					found = true
+					break
+				}
+			}
+		}
+
+		if found && !overwrite {
+			return true, nil
+		} else if !found {
+			parsed[k] = v
+		}
+
+		BindKey(k, v, Binder["buffer"])
+
+		txt, _ := json.MarshalIndent(parsed, "", "    ")
+		return true, ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+	}
+	return false, e
+}
+
+// UnbindKey removes the binding for a key from the bindings.json file
+func UnbindKey(k string) error {
+	var e error
+	var parsed map[string]interface{}
+
+	filename := filepath.Join(config.ConfigDir, "bindings.json")
+	createBindingsIfNotExist(filename)
+	if _, e = os.Stat(filename); e == nil {
+		input, err := ioutil.ReadFile(filename)
+		if err != nil {
+			return errors.New("Error reading bindings.json file: " + err.Error())
+		}
+
+		err = json5.Unmarshal(input, &parsed)
+		if err != nil {
+			return errors.New("Error reading bindings.json: " + err.Error())
+		}
+
+		key, err := findEvent(k)
+		if err != nil {
+			return err
+		}
+
+		for ev := range parsed {
+			if e, err := findEvent(ev); err == nil {
+				if e == key {
+					delete(parsed, ev)
+					break
+				}
+			}
+		}
+
+		defaults := DefaultBindings("buffer")
+		if a, ok := defaults[k]; ok {
+			BindKey(k, a, Binder["buffer"])
+		} else if _, ok := config.Bindings["buffer"][k]; ok {
+			BufUnmap(key)
+			delete(config.Bindings["buffer"], k)
+		}
+
+		txt, _ := json.MarshalIndent(parsed, "", "    ")
+		return ioutil.WriteFile(filename, append(txt, '\n'), 0644)
+	}
+	return e
+}
+
+var mouseEvents = map[string]tcell.ButtonMask{
+	"MouseLeft":       tcell.ButtonPrimary,
+	"MouseMiddle":     tcell.ButtonMiddle,
+	"MouseRight":      tcell.ButtonSecondary,
+	"MouseWheelUp":    tcell.WheelUp,
+	"MouseWheelDown":  tcell.WheelDown,
+	"MouseWheelLeft":  tcell.WheelLeft,
+	"MouseWheelRight": tcell.WheelRight,
+}
+
+var keyEvents = map[string]tcell.Key{
+	"Up":             tcell.KeyUp,
+	"Down":           tcell.KeyDown,
+	"Right":          tcell.KeyRight,
+	"Left":           tcell.KeyLeft,
+	"UpLeft":         tcell.KeyUpLeft,
+	"UpRight":        tcell.KeyUpRight,
+	"DownLeft":       tcell.KeyDownLeft,
+	"DownRight":      tcell.KeyDownRight,
+	"Center":         tcell.KeyCenter,
+	"PageUp":         tcell.KeyPgUp,
+	"PageDown":       tcell.KeyPgDn,
+	"Home":           tcell.KeyHome,
+	"End":            tcell.KeyEnd,
+	"Insert":         tcell.KeyInsert,
+	"Delete":         tcell.KeyDelete,
+	"Help":           tcell.KeyHelp,
+	"Exit":           tcell.KeyExit,
+	"Clear":          tcell.KeyClear,
+	"Cancel":         tcell.KeyCancel,
+	"Print":          tcell.KeyPrint,
+	"Pause":          tcell.KeyPause,
+	"Backtab":        tcell.KeyBacktab,
+	"F1":             tcell.KeyF1,
+	"F2":             tcell.KeyF2,
+	"F3":             tcell.KeyF3,
+	"F4":             tcell.KeyF4,
+	"F5":             tcell.KeyF5,
+	"F6":             tcell.KeyF6,
+	"F7":             tcell.KeyF7,
+	"F8":             tcell.KeyF8,
+	"F9":             tcell.KeyF9,
+	"F10":            tcell.KeyF10,
+	"F11":            tcell.KeyF11,
+	"F12":            tcell.KeyF12,
+	"F13":            tcell.KeyF13,
+	"F14":            tcell.KeyF14,
+	"F15":            tcell.KeyF15,
+	"F16":            tcell.KeyF16,
+	"F17":            tcell.KeyF17,
+	"F18":            tcell.KeyF18,
+	"F19":            tcell.KeyF19,
+	"F20":            tcell.KeyF20,
+	"F21":            tcell.KeyF21,
+	"F22":            tcell.KeyF22,
+	"F23":            tcell.KeyF23,
+	"F24":            tcell.KeyF24,
+	"F25":            tcell.KeyF25,
+	"F26":            tcell.KeyF26,
+	"F27":            tcell.KeyF27,
+	"F28":            tcell.KeyF28,
+	"F29":            tcell.KeyF29,
+	"F30":            tcell.KeyF30,
+	"F31":            tcell.KeyF31,
+	"F32":            tcell.KeyF32,
+	"F33":            tcell.KeyF33,
+	"F34":            tcell.KeyF34,
+	"F35":            tcell.KeyF35,
+	"F36":            tcell.KeyF36,
+	"F37":            tcell.KeyF37,
+	"F38":            tcell.KeyF38,
+	"F39":            tcell.KeyF39,
+	"F40":            tcell.KeyF40,
+	"F41":            tcell.KeyF41,
+	"F42":            tcell.KeyF42,
+	"F43":            tcell.KeyF43,
+	"F44":            tcell.KeyF44,
+	"F45":            tcell.KeyF45,
+	"F46":            tcell.KeyF46,
+	"F47":            tcell.KeyF47,
+	"F48":            tcell.KeyF48,
+	"F49":            tcell.KeyF49,
+	"F50":            tcell.KeyF50,
+	"F51":            tcell.KeyF51,
+	"F52":            tcell.KeyF52,
+	"F53":            tcell.KeyF53,
+	"F54":            tcell.KeyF54,
+	"F55":            tcell.KeyF55,
+	"F56":            tcell.KeyF56,
+	"F57":            tcell.KeyF57,
+	"F58":            tcell.KeyF58,
+	"F59":            tcell.KeyF59,
+	"F60":            tcell.KeyF60,
+	"F61":            tcell.KeyF61,
+	"F62":            tcell.KeyF62,
+	"F63":            tcell.KeyF63,
+	"F64":            tcell.KeyF64,
+	"CtrlSpace":      tcell.KeyCtrlSpace,
+	"CtrlA":          tcell.KeyCtrlA,
+	"CtrlB":          tcell.KeyCtrlB,
+	"CtrlC":          tcell.KeyCtrlC,
+	"CtrlD":          tcell.KeyCtrlD,
+	"CtrlE":          tcell.KeyCtrlE,
+	"CtrlF":          tcell.KeyCtrlF,
+	"CtrlG":          tcell.KeyCtrlG,
+	"CtrlH":          tcell.KeyCtrlH,
+	"CtrlI":          tcell.KeyCtrlI,
+	"CtrlJ":          tcell.KeyCtrlJ,
+	"CtrlK":          tcell.KeyCtrlK,
+	"CtrlL":          tcell.KeyCtrlL,
+	"CtrlM":          tcell.KeyCtrlM,
+	"CtrlN":          tcell.KeyCtrlN,
+	"CtrlO":          tcell.KeyCtrlO,
+	"CtrlP":          tcell.KeyCtrlP,
+	"CtrlQ":          tcell.KeyCtrlQ,
+	"CtrlR":          tcell.KeyCtrlR,
+	"CtrlS":          tcell.KeyCtrlS,
+	"CtrlT":          tcell.KeyCtrlT,
+	"CtrlU":          tcell.KeyCtrlU,
+	"CtrlV":          tcell.KeyCtrlV,
+	"CtrlW":          tcell.KeyCtrlW,
+	"CtrlX":          tcell.KeyCtrlX,
+	"CtrlY":          tcell.KeyCtrlY,
+	"CtrlZ":          tcell.KeyCtrlZ,
+	"CtrlLeftSq":     tcell.KeyCtrlLeftSq,
+	"CtrlBackslash":  tcell.KeyCtrlBackslash,
+	"CtrlRightSq":    tcell.KeyCtrlRightSq,
+	"CtrlCarat":      tcell.KeyCtrlCarat,
+	"CtrlUnderscore": tcell.KeyCtrlUnderscore,
+	"Tab":            tcell.KeyTab,
+	"Esc":            tcell.KeyEsc,
+	"Escape":         tcell.KeyEscape,
+	"Enter":          tcell.KeyEnter,
+	"Backspace":      tcell.KeyBackspace2,
+	"OldBackspace":   tcell.KeyBackspace,
+
+	// I renamed these keys to PageUp and PageDown but I don't want to break someone's keybindings
+	"PgUp":   tcell.KeyPgUp,
+	"PgDown": tcell.KeyPgDn,
+}

internal/action/bufpane.go

@@ -0,0 +1,869 @@
+package action
+
+import (
+	"strings"
+	"time"
+
+	luar "layeh.com/gopher-luar"
+
+	lua "github.com/yuin/gopher-lua"
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/clipboard"
+	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/display"
+	ulua "github.com/zyedidia/micro/v2/internal/lua"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/micro/v2/internal/util"
+	"github.com/zyedidia/tcell/v2"
+)
+
+// BufKeyAction represents an action bound to a key.
+type BufKeyAction func(*BufPane) bool
+
+// BufMouseAction is an action that must be bound to a mouse event.
+type BufMouseAction func(*BufPane, *tcell.EventMouse) bool
+
+// BufBindings stores the bindings for the buffer pane type.
+var BufBindings *KeyTree
+
+// BufKeyActionGeneral makes a general pane action from a BufKeyAction.
+func BufKeyActionGeneral(a BufKeyAction) PaneKeyAction {
+	return func(p Pane) bool {
+		return a(p.(*BufPane))
+	}
+}
+
+// BufMouseActionGeneral makes a general pane mouse action from a BufKeyAction.
+func BufMouseActionGeneral(a BufMouseAction) PaneMouseAction {
+	return func(p Pane, me *tcell.EventMouse) bool {
+		return a(p.(*BufPane), me)
+	}
+}
+
+func init() {
+	BufBindings = NewKeyTree()
+}
+
+// LuaAction makes a BufKeyAction from a lua function.
+func LuaAction(fn string) func(*BufPane) bool {
+	luaFn := strings.Split(fn, ".")
+	if len(luaFn) <= 1 {
+		return nil
+	}
+	plName, plFn := luaFn[0], luaFn[1]
+	pl := config.FindPlugin(plName)
+	if pl == nil {
+		return nil
+	}
+	return func(h *BufPane) bool {
+		val, err := pl.Call(plFn, luar.New(ulua.L, h))
+		if err != nil {
+			screen.TermMessage(err)
+		}
+		if v, ok := val.(lua.LBool); !ok {
+			return false
+		} else {
+			return bool(v)
+		}
+	}
+}
+
+// BufMapKey maps an event to an action
+func BufMapEvent(k Event, action string) {
+	config.Bindings["buffer"][k.Name()] = action
+
+	switch e := k.(type) {
+	case KeyEvent, KeySequenceEvent, RawEvent:
+		bufMapKey(e, action)
+	case MouseEvent:
+		bufMapMouse(e, action)
+	}
+}
+
+func bufMapKey(k Event, action string) {
+	var actionfns []func(*BufPane) bool
+	var names []string
+	var types []byte
+	for i := 0; ; i++ {
+		if action == "" {
+			break
+		}
+
+		// TODO: fix problem when complex bindings have these
+		// characters (escape them?)
+		idx := strings.IndexAny(action, "&|,")
+		a := action
+		if idx >= 0 {
+			a = action[:idx]
+			types = append(types, action[idx])
+			action = action[idx+1:]
+		} else {
+			types = append(types, ' ')
+			action = ""
+		}
+
+		var afn func(*BufPane) bool
+		if strings.HasPrefix(a, "command:") {
+			a = strings.SplitN(a, ":", 2)[1]
+			afn = CommandAction(a)
+			names = append(names, "")
+		} else if strings.HasPrefix(a, "command-edit:") {
+			a = strings.SplitN(a, ":", 2)[1]
+			afn = CommandEditAction(a)
+			names = append(names, "")
+		} else if strings.HasPrefix(a, "lua:") {
+			a = strings.SplitN(a, ":", 2)[1]
+			afn = LuaAction(a)
+			if afn == nil {
+				screen.TermMessage("Lua Error:", a, "does not exist")
+				continue
+			}
+			split := strings.SplitN(a, ".", 2)
+			if len(split) > 1 {
+				a = strings.Title(split[0]) + strings.Title(split[1])
+			} else {
+				a = strings.Title(a)
+			}
+
+			names = append(names, a)
+		} else if f, ok := BufKeyActions[a]; ok {
+			afn = f
+			names = append(names, a)
+		} else {
+			screen.TermMessage("Error in bindings: action", a, "does not exist")
+			continue
+		}
+		actionfns = append(actionfns, afn)
+	}
+	bufAction := func(h *BufPane) bool {
+		cursors := h.Buf.GetCursors()
+		success := true
+		for i, a := range actionfns {
+			innerSuccess := true
+			for j, c := range cursors {
+				if c == nil {
+					continue
+				}
+				h.Buf.SetCurCursor(c.Num)
+				h.Cursor = c
+				if i == 0 || (success && types[i-1] == '&') || (!success && types[i-1] == '|') || (types[i-1] == ',') {
+					innerSuccess = innerSuccess && h.execAction(a, names[i], j)
+				} else {
+					break
+				}
+			}
+			// if the action changed the current pane, update the reference
+			h = MainTab().CurPane()
+			success = innerSuccess
+		}
+		return true
+	}
+
+	BufBindings.RegisterKeyBinding(k, BufKeyActionGeneral(bufAction))
+}
+
+// BufMapMouse maps a mouse event to an action
+func bufMapMouse(k MouseEvent, action string) {
+	if f, ok := BufMouseActions[action]; ok {
+		BufBindings.RegisterMouseBinding(k, BufMouseActionGeneral(f))
+	} else {
+		// TODO
+		// delete(BufMouseBindings, k)
+		bufMapKey(k, action)
+	}
+}
+
+// BufUnmap unmaps a key or mouse event from any action
+func BufUnmap(k Event) {
+	// TODO
+	// delete(BufKeyBindings, k)
+	//
+	// switch e := k.(type) {
+	// case MouseEvent:
+	// 	delete(BufMouseBindings, e)
+	// }
+}
+
+// The BufPane connects the buffer and the window
+// It provides a cursor (or multiple) and defines a set of actions
+// that can be taken on the buffer
+// The ActionHandler can access the window for necessary info about
+// visual positions for mouse clicks and scrolling
+type BufPane struct {
+	display.BWindow
+
+	// Buf is the buffer this BufPane views
+	Buf *buffer.Buffer
+	// Bindings stores the association of key events and actions
+	bindings *KeyTree
+
+	// Cursor is the currently active buffer cursor
+	Cursor *buffer.Cursor
+
+	// Since tcell doesn't differentiate between a mouse release event
+	// and a mouse move event with no keys pressed, we need to keep
+	// track of whether or not the mouse was pressed (or not released) last event to determine
+	// mouse release events
+	mouseReleased bool
+
+	// We need to keep track of insert key press toggle
+	isOverwriteMode bool
+	// This stores when the last click was
+	// This is useful for detecting double and triple clicks
+	lastClickTime time.Time
+	lastLoc       buffer.Loc
+
+	// lastCutTime stores when the last ctrl+k was issued.
+	// It is used for clearing the clipboard to replace it with fresh cut lines.
+	lastCutTime time.Time
+
+	// freshClip returns true if the clipboard has never been pasted.
+	freshClip bool
+
+	// Was the last mouse event actually a double click?
+	// Useful for detecting triple clicks -- if a double click is detected
+	// but the last mouse event was actually a double click, it's a triple click
+	doubleClick bool
+	// Same here, just to keep track for mouse move events
+	tripleClick bool
+
+	// Should the current multiple cursor selection search based on word or
+	// based on selection (false for selection, true for word)
+	multiWord bool
+
+	splitID uint64
+	tab     *Tab
+
+	// remember original location of a search in case the search is canceled
+	searchOrig buffer.Loc
+
+	// The pane may not yet be fully initialized after its creation
+	// since we may not know the window geometry yet. In such case we finish
+	// its initialization a bit later, after the initial resize.
+	initialized bool
+}
+
+func newBufPane(buf *buffer.Buffer, win display.BWindow, tab *Tab) *BufPane {
+	h := new(BufPane)
+	h.Buf = buf
+	h.BWindow = win
+	h.tab = tab
+
+	h.Cursor = h.Buf.GetActiveCursor()
+	h.mouseReleased = true
+
+	return h
+}
+
+// NewBufPane creates a new buffer pane with the given window.
+func NewBufPane(buf *buffer.Buffer, win display.BWindow, tab *Tab) *BufPane {
+	h := newBufPane(buf, win, tab)
+	h.finishInitialize()
+	return h
+}
+
+// NewBufPaneFromBuf constructs a new pane from the given buffer and automatically
+// creates a buf window.
+func NewBufPaneFromBuf(buf *buffer.Buffer, tab *Tab) *BufPane {
+	w := display.NewBufWindow(0, 0, 0, 0, buf)
+	h := newBufPane(buf, w, tab)
+	// Postpone finishing initializing the pane until we know the actual geometry
+	// of the buf window.
+	return h
+}
+
+// TODO: make sure splitID and tab are set before finishInitialize is called
+func (h *BufPane) finishInitialize() {
+	h.initialRelocate()
+	h.initialized = true
+	config.RunPluginFn("onBufPaneOpen", luar.New(ulua.L, h))
+}
+
+// Resize resizes the pane
+func (h *BufPane) Resize(width, height int) {
+	h.BWindow.Resize(width, height)
+	if !h.initialized {
+		h.finishInitialize()
+	}
+}
+
+// SetTab sets this pane's tab.
+func (h *BufPane) SetTab(t *Tab) {
+	h.tab = t
+}
+
+// Tab returns this pane's tab.
+func (h *BufPane) Tab() *Tab {
+	return h.tab
+}
+
+func (h *BufPane) ResizePane(size int) {
+	n := h.tab.GetNode(h.splitID)
+	n.ResizeSplit(size)
+	h.tab.Resize()
+}
+
+// PluginCB calls all plugin callbacks with a certain name and displays an
+// error if there is one and returns the aggregrate boolean response
+func (h *BufPane) PluginCB(cb string) bool {
+	b, err := config.RunPluginFnBool(h.Buf.Settings, cb, luar.New(ulua.L, h))
+	if err != nil {
+		screen.TermMessage(err)
+	}
+	return b
+}
+
+// PluginCBRune is the same as PluginCB but also passes a rune to the plugins
+func (h *BufPane) PluginCBRune(cb string, r rune) bool {
+	b, err := config.RunPluginFnBool(h.Buf.Settings, cb, luar.New(ulua.L, h), luar.New(ulua.L, string(r)))
+	if err != nil {
+		screen.TermMessage(err)
+	}
+	return b
+}
+
+// OpenBuffer opens the given buffer in this pane.
+func (h *BufPane) OpenBuffer(b *buffer.Buffer) {
+	h.Buf.Close()
+	h.Buf = b
+	h.BWindow.SetBuffer(b)
+	h.Cursor = b.GetActiveCursor()
+	h.Resize(h.GetView().Width, h.GetView().Height)
+	h.initialRelocate()
+	// Set mouseReleased to true because we assume the mouse is not being
+	// pressed when the editor is opened
+	h.mouseReleased = true
+	// Set isOverwriteMode to false, because we assume we are in the default
+	// mode when editor is opened
+	h.isOverwriteMode = false
+	h.lastClickTime = time.Time{}
+}
+
+// GotoLoc moves the cursor to a new location and adjusts the view accordingly.
+// Use GotoLoc when the new location may be far away from the current location.
+func (h *BufPane) GotoLoc(loc buffer.Loc) {
+	sloc := h.SLocFromLoc(loc)
+	d := h.Diff(h.SLocFromLoc(h.Cursor.Loc), sloc)
+
+	h.Cursor.GotoLoc(loc)
+
+	// If the new location is far away from the previous one,
+	// ensure the cursor is at 25% of the window height
+	height := h.BufView().Height
+	if util.Abs(d) >= height {
+		v := h.GetView()
+		v.StartLine = h.Scroll(sloc, -height/4)
+		h.ScrollAdjust()
+		v.StartCol = 0
+	}
+	h.Relocate()
+}
+
+func (h *BufPane) initialRelocate() {
+	sloc := h.SLocFromLoc(h.Cursor.Loc)
+	height := h.BufView().Height
+
+	// If the initial cursor location is far away from the beginning
+	// of the buffer, ensure the cursor is at 25% of the window height
+	v := h.GetView()
+	if h.Diff(display.SLoc{0, 0}, sloc) < height {
+		v.StartLine = display.SLoc{0, 0}
+	} else {
+		v.StartLine = h.Scroll(sloc, -height/4)
+		h.ScrollAdjust()
+	}
+	v.StartCol = 0
+	h.Relocate()
+}
+
+// ID returns this pane's split id.
+func (h *BufPane) ID() uint64 {
+	return h.splitID
+}
+
+// SetID sets the split ID of this pane.
+func (h *BufPane) SetID(i uint64) {
+	h.splitID = i
+}
+
+// Name returns the BufPane's name.
+func (h *BufPane) Name() string {
+	n := h.Buf.GetName()
+	if h.Buf.Modified() {
+		n += " +"
+	}
+	return n
+}
+
+func (h *BufPane) getReloadSetting() string {
+	reloadSetting := h.Buf.Settings["reload"]
+	return reloadSetting.(string)
+}
+
+// HandleEvent executes the tcell event properly
+func (h *BufPane) HandleEvent(event tcell.Event) {
+	if h.Buf.ExternallyModified() && !h.Buf.ReloadDisabled {
+		reload := h.getReloadSetting()
+
+		if reload == "prompt" {
+			InfoBar.YNPrompt("The file on disk has changed. Reload file? (y,n,esc)", func(yes, canceled bool) {
+				if canceled {
+					h.Buf.DisableReload()
+				}
+				if !yes || canceled {
+					h.Buf.UpdateModTime()
+				} else {
+					h.Buf.ReOpen()
+				}
+			})
+		} else if reload == "auto" {
+			h.Buf.ReOpen()
+		} else if reload == "disabled" {
+			h.Buf.DisableReload()
+		} else {
+			InfoBar.Message("Invalid reload setting")
+		}
+	}
+
+	switch e := event.(type) {
+	case *tcell.EventRaw:
+		re := RawEvent{
+			esc: e.EscSeq(),
+		}
+		h.DoKeyEvent(re)
+	case *tcell.EventPaste:
+		h.paste(e.Text())
+		h.Relocate()
+	case *tcell.EventKey:
+		ke := KeyEvent{
+			code: e.Key(),
+			mod:  metaToAlt(e.Modifiers()),
+			r:    e.Rune(),
+		}
+
+		done := h.DoKeyEvent(ke)
+		if !done && e.Key() == tcell.KeyRune {
+			h.DoRuneInsert(e.Rune())
+		}
+	case *tcell.EventMouse:
+		cancel := false
+		switch e.Buttons() {
+		case tcell.Button1:
+			_, my := e.Position()
+			if h.Buf.Type.Kind != buffer.BTInfo.Kind && h.Buf.Settings["statusline"].(bool) && my >= h.GetView().Y+h.GetView().Height-1 {
+				cancel = true
+			}
+		case tcell.ButtonNone:
+			// Mouse event with no click
+			if !h.mouseReleased {
+				// Mouse was just released
+
+				// mx, my := e.Position()
+				// mouseLoc := h.LocFromVisual(buffer.Loc{X: mx, Y: my})
+
+				// we could finish the selection based on the release location as described
+				// below but when the mouse click is within the scroll margin this will
+				// cause a scroll and selection even for a simple mouse click which is
+				// not good
+				// for terminals that don't support mouse motion events, selection via
+				// the mouse won't work but this is ok
+
+				// Relocating here isn't really necessary because the cursor will
+				// be in the right place from the last mouse event
+				// However, if we are running in a terminal that doesn't support mouse motion
+				// events, this still allows the user to make selections, except only after they
+				// release the mouse
+
+				// if !h.doubleClick && !h.tripleClick {
+				// 	h.Cursor.SetSelectionEnd(h.Cursor.Loc)
+				// }
+				if h.Cursor.HasSelection() {
+					h.Cursor.CopySelection(clipboard.PrimaryReg)
+				}
+				h.mouseReleased = true
+			}
+		}
+
+		if !cancel {
+			me := MouseEvent{
+				btn: e.Buttons(),
+				mod: metaToAlt(e.Modifiers()),
+			}
+			h.DoMouseEvent(me, e)
+		}
+	}
+	h.Buf.MergeCursors()
+
+	if h.IsActive() {
+		// Display any gutter messages for this line
+		c := h.Buf.GetActiveCursor()
+		none := true
+		for _, m := range h.Buf.Messages {
+			if c.Y == m.Start.Y || c.Y == m.End.Y {
+				InfoBar.GutterMessage(m.Msg)
+				none = false
+				break
+			}
+		}
+		if none && InfoBar.HasGutter {
+			InfoBar.ClearGutter()
+		}
+	}
+}
+
+// Bindings returns the current bindings tree for this buffer.
+func (h *BufPane) Bindings() *KeyTree {
+	if h.bindings != nil {
+		return h.bindings
+	}
+	return BufBindings
+}
+
+// DoKeyEvent executes a key event by finding the action it is bound
+// to and executing it (possibly multiple times for multiple cursors)
+func (h *BufPane) DoKeyEvent(e Event) bool {
+	binds := h.Bindings()
+	action, more := binds.NextEvent(e, nil)
+	if action != nil && !more {
+		action(h)
+		binds.ResetEvents()
+		return true
+	} else if action == nil && !more {
+		binds.ResetEvents()
+	}
+	return more
+}
+
+func (h *BufPane) execAction(action func(*BufPane) bool, name string, cursor int) bool {
+	if name != "Autocomplete" && name != "CycleAutocompleteBack" {
+		h.Buf.HasSuggestions = false
+	}
+
+	_, isMulti := MultiActions[name]
+	if (!isMulti && cursor == 0) || isMulti {
+		if h.PluginCB("pre" + name) {
+			success := action(h)
+			success = success && h.PluginCB("on"+name)
+
+			if isMulti {
+				if recordingMacro {
+					if name != "ToggleMacro" && name != "PlayMacro" {
+						curmacro = append(curmacro, action)
+					}
+				}
+			}
+
+			return success
+		}
+	}
+
+	return false
+}
+
+func (h *BufPane) completeAction(action string) {
+	h.PluginCB("on" + action)
+}
+
+func (h *BufPane) HasKeyEvent(e Event) bool {
+	// TODO
+	return true
+	// _, ok := BufKeyBindings[e]
+	// return ok
+}
+
+// DoMouseEvent executes a mouse event by finding the action it is bound
+// to and executing it
+func (h *BufPane) DoMouseEvent(e MouseEvent, te *tcell.EventMouse) bool {
+	binds := h.Bindings()
+	action, _ := binds.NextEvent(e, te)
+	if action != nil {
+		action(h)
+		binds.ResetEvents()
+		return true
+	}
+	// TODO
+	return false
+
+	// if action, ok := BufMouseBindings[e]; ok {
+	// 	if action(h, te) {
+	// 		h.Relocate()
+	// 	}
+	// 	return true
+	// } else if h.HasKeyEvent(e) {
+	// 	return h.DoKeyEvent(e)
+	// }
+	// return false
+}
+
+// DoRuneInsert inserts a given rune into the current buffer
+// (possibly multiple times for multiple cursors)
+func (h *BufPane) DoRuneInsert(r rune) {
+	cursors := h.Buf.GetCursors()
+	for _, c := range cursors {
+		// Insert a character
+		h.Buf.SetCurCursor(c.Num)
+		h.Cursor = c
+		if !h.PluginCBRune("preRune", r) {
+			continue
+		}
+		if c.HasSelection() {
+			c.DeleteSelection()
+			c.ResetSelection()
+		}
+
+		if h.isOverwriteMode {
+			next := c.Loc
+			next.X++
+			h.Buf.Replace(c.Loc, next, string(r))
+		} else {
+			h.Buf.Insert(c.Loc, string(r))
+		}
+		if recordingMacro {
+			curmacro = append(curmacro, r)
+		}
+		h.Relocate()
+		h.PluginCBRune("onRune", r)
+	}
+}
+
+// VSplitIndex opens the given buffer in a vertical split on the given side.
+func (h *BufPane) VSplitIndex(buf *buffer.Buffer, right bool) *BufPane {
+	e := NewBufPaneFromBuf(buf, h.tab)
+	e.splitID = MainTab().GetNode(h.splitID).VSplit(right)
+	MainTab().Panes = append(MainTab().Panes, e)
+	MainTab().Resize()
+	MainTab().SetActive(len(MainTab().Panes) - 1)
+	return e
+}
+
+// HSplitIndex opens the given buffer in a horizontal split on the given side.
+func (h *BufPane) HSplitIndex(buf *buffer.Buffer, bottom bool) *BufPane {
+	e := NewBufPaneFromBuf(buf, h.tab)
+	e.splitID = MainTab().GetNode(h.splitID).HSplit(bottom)
+	MainTab().Panes = append(MainTab().Panes, e)
+	MainTab().Resize()
+	MainTab().SetActive(len(MainTab().Panes) - 1)
+	return e
+}
+
+// VSplitBuf opens the given buffer in a new vertical split.
+func (h *BufPane) VSplitBuf(buf *buffer.Buffer) *BufPane {
+	return h.VSplitIndex(buf, h.Buf.Settings["splitright"].(bool))
+}
+
+// HSplitBuf opens the given buffer in a new horizontal split.
+func (h *BufPane) HSplitBuf(buf *buffer.Buffer) *BufPane {
+	return h.HSplitIndex(buf, h.Buf.Settings["splitbottom"].(bool))
+}
+
+// Close this pane.
+func (h *BufPane) Close() {
+	h.Buf.Close()
+}
+
+// SetActive marks this pane as active.
+func (h *BufPane) SetActive(b bool) {
+	h.BWindow.SetActive(b)
+	if b {
+		// Display any gutter messages for this line
+		c := h.Buf.GetActiveCursor()
+		none := true
+		for _, m := range h.Buf.Messages {
+			if c.Y == m.Start.Y || c.Y == m.End.Y {
+				InfoBar.GutterMessage(m.Msg)
+				none = false
+				break
+			}
+		}
+		if none && InfoBar.HasGutter {
+			InfoBar.ClearGutter()
+		}
+	}
+
+}
+
+// BufKeyActions contains the list of all possible key actions the bufhandler could execute
+var BufKeyActions = map[string]BufKeyAction{
+	"CursorUp":                  (*BufPane).CursorUp,
+	"CursorDown":                (*BufPane).CursorDown,
+	"CursorPageUp":              (*BufPane).CursorPageUp,
+	"CursorPageDown":            (*BufPane).CursorPageDown,
+	"CursorLeft":                (*BufPane).CursorLeft,
+	"CursorRight":               (*BufPane).CursorRight,
+	"CursorStart":               (*BufPane).CursorStart,
+	"CursorEnd":                 (*BufPane).CursorEnd,
+	"SelectToStart":             (*BufPane).SelectToStart,
+	"SelectToEnd":               (*BufPane).SelectToEnd,
+	"SelectUp":                  (*BufPane).SelectUp,
+	"SelectDown":                (*BufPane).SelectDown,
+	"SelectLeft":                (*BufPane).SelectLeft,
+	"SelectRight":               (*BufPane).SelectRight,
+	"WordRight":                 (*BufPane).WordRight,
+	"WordLeft":                  (*BufPane).WordLeft,
+	"SelectWordRight":           (*BufPane).SelectWordRight,
+	"SelectWordLeft":            (*BufPane).SelectWordLeft,
+	"DeleteWordRight":           (*BufPane).DeleteWordRight,
+	"DeleteWordLeft":            (*BufPane).DeleteWordLeft,
+	"SelectLine":                (*BufPane).SelectLine,
+	"SelectToStartOfLine":       (*BufPane).SelectToStartOfLine,
+	"SelectToStartOfText":       (*BufPane).SelectToStartOfText,
+	"SelectToStartOfTextToggle": (*BufPane).SelectToStartOfTextToggle,
+	"SelectToEndOfLine":         (*BufPane).SelectToEndOfLine,
+	"ParagraphPrevious":         (*BufPane).ParagraphPrevious,
+	"ParagraphNext":             (*BufPane).ParagraphNext,
+	"InsertNewline":             (*BufPane).InsertNewline,
+	"Backspace":                 (*BufPane).Backspace,
+	"Delete":                    (*BufPane).Delete,
+	"InsertTab":                 (*BufPane).InsertTab,
+	"Save":                      (*BufPane).Save,
+	"SaveAll":                   (*BufPane).SaveAll,
+	"SaveAs":                    (*BufPane).SaveAs,
+	"Find":                      (*BufPane).Find,
+	"FindLiteral":               (*BufPane).FindLiteral,
+	"FindNext":                  (*BufPane).FindNext,
+	"FindPrevious":              (*BufPane).FindPrevious,
+	"DiffNext":                  (*BufPane).DiffNext,
+	"DiffPrevious":              (*BufPane).DiffPrevious,
+	"Center":                    (*BufPane).Center,
+	"Undo":                      (*BufPane).Undo,
+	"Redo":                      (*BufPane).Redo,
+	"Copy":                      (*BufPane).Copy,
+	"CopyLine":                  (*BufPane).CopyLine,
+	"Cut":                       (*BufPane).Cut,
+	"CutLine":                   (*BufPane).CutLine,
+	"DuplicateLine":             (*BufPane).DuplicateLine,
+	"DeleteLine":                (*BufPane).DeleteLine,
+	"MoveLinesUp":               (*BufPane).MoveLinesUp,
+	"MoveLinesDown":             (*BufPane).MoveLinesDown,
+	"IndentSelection":           (*BufPane).IndentSelection,
+	"OutdentSelection":          (*BufPane).OutdentSelection,
+	"Autocomplete":              (*BufPane).Autocomplete,
+	"CycleAutocompleteBack":     (*BufPane).CycleAutocompleteBack,
+	"OutdentLine":               (*BufPane).OutdentLine,
+	"IndentLine":                (*BufPane).IndentLine,
+	"Paste":                     (*BufPane).Paste,
+	"PastePrimary":              (*BufPane).PastePrimary,
+	"SelectAll":                 (*BufPane).SelectAll,
+	"OpenFile":                  (*BufPane).OpenFile,
+	"Start":                     (*BufPane).Start,
+	"End":                       (*BufPane).End,
+	"PageUp":                    (*BufPane).PageUp,
+	"PageDown":                  (*BufPane).PageDown,
+	"SelectPageUp":              (*BufPane).SelectPageUp,
+	"SelectPageDown":            (*BufPane).SelectPageDown,
+	"HalfPageUp":                (*BufPane).HalfPageUp,
+	"HalfPageDown":              (*BufPane).HalfPageDown,
+	"StartOfText":               (*BufPane).StartOfText,
+	"StartOfTextToggle":         (*BufPane).StartOfTextToggle,
+	"StartOfLine":               (*BufPane).StartOfLine,
+	"EndOfLine":                 (*BufPane).EndOfLine,
+	"ToggleHelp":                (*BufPane).ToggleHelp,
+	"ToggleKeyMenu":             (*BufPane).ToggleKeyMenu,
+	"ToggleDiffGutter":          (*BufPane).ToggleDiffGutter,
+	"ToggleRuler":               (*BufPane).ToggleRuler,
+	"ToggleHighlightSearch":     (*BufPane).ToggleHighlightSearch,
+	"UnhighlightSearch":         (*BufPane).UnhighlightSearch,
+	"ClearStatus":               (*BufPane).ClearStatus,
+	"ShellMode":                 (*BufPane).ShellMode,
+	"CommandMode":               (*BufPane).CommandMode,
+	"ToggleOverwriteMode":       (*BufPane).ToggleOverwriteMode,
+	"Escape":                    (*BufPane).Escape,
+	"Quit":                      (*BufPane).Quit,
+	"QuitAll":                   (*BufPane).QuitAll,
+	"ForceQuit":                 (*BufPane).ForceQuit,
+	"AddTab":                    (*BufPane).AddTab,
+	"PreviousTab":               (*BufPane).PreviousTab,
+	"NextTab":                   (*BufPane).NextTab,
+	"NextSplit":                 (*BufPane).NextSplit,
+	"PreviousSplit":             (*BufPane).PreviousSplit,
+	"Unsplit":                   (*BufPane).Unsplit,
+	"VSplit":                    (*BufPane).VSplitAction,
+	"HSplit":                    (*BufPane).HSplitAction,
+	"ToggleMacro":               (*BufPane).ToggleMacro,
+	"PlayMacro":                 (*BufPane).PlayMacro,
+	"Suspend":                   (*BufPane).Suspend,
+	"ScrollUp":                  (*BufPane).ScrollUpAction,
+	"ScrollDown":                (*BufPane).ScrollDownAction,
+	"SpawnMultiCursor":          (*BufPane).SpawnMultiCursor,
+	"SpawnMultiCursorUp":        (*BufPane).SpawnMultiCursorUp,
+	"SpawnMultiCursorDown":      (*BufPane).SpawnMultiCursorDown,
+	"SpawnMultiCursorSelect":    (*BufPane).SpawnMultiCursorSelect,
+	"RemoveMultiCursor":         (*BufPane).RemoveMultiCursor,
+	"RemoveAllMultiCursors":     (*BufPane).RemoveAllMultiCursors,
+	"SkipMultiCursor":           (*BufPane).SkipMultiCursor,
+	"JumpToMatchingBrace":       (*BufPane).JumpToMatchingBrace,
+	"JumpLine":                  (*BufPane).JumpLine,
+	"Deselect":                  (*BufPane).Deselect,
+	"ClearInfo":                 (*BufPane).ClearInfo,
+	"None":                      (*BufPane).None,
+
+	// This was changed to InsertNewline but I don't want to break backwards compatibility
+	"InsertEnter": (*BufPane).InsertNewline,
+}
+
+// BufMouseActions contains the list of all possible mouse actions the bufhandler could execute
+var BufMouseActions = map[string]BufMouseAction{
+	"MousePress":       (*BufPane).MousePress,
+	"MouseMultiCursor": (*BufPane).MouseMultiCursor,
+}
+
+// MultiActions is a list of actions that should be executed multiple
+// times if there are multiple cursors (one per cursor)
+// Generally actions that modify global editor state like quitting or
+// saving should not be included in this list
+var MultiActions = map[string]bool{
+	"CursorUp":                  true,
+	"CursorDown":                true,
+	"CursorPageUp":              true,
+	"CursorPageDown":            true,
+	"CursorLeft":                true,
+	"CursorRight":               true,
+	"CursorStart":               true,
+	"CursorEnd":                 true,
+	"SelectToStart":             true,
+	"SelectToEnd":               true,
+	"SelectUp":                  true,
+	"SelectDown":                true,
+	"SelectLeft":                true,
+	"SelectRight":               true,
+	"WordRight":                 true,
+	"WordLeft":                  true,
+	"SelectWordRight":           true,
+	"SelectWordLeft":            true,
+	"DeleteWordRight":           true,
+	"DeleteWordLeft":            true,
+	"SelectLine":                true,
+	"SelectToStartOfLine":       true,
+	"SelectToStartOfText":       true,
+	"SelectToStartOfTextToggle": true,
+	"SelectToEndOfLine":         true,
+	"ParagraphPrevious":         true,
+	"ParagraphNext":             true,
+	"InsertNewline":             true,
+	"Backspace":                 true,
+	"Delete":                    true,
+	"InsertTab":                 true,
+	"FindNext":                  true,
+	"FindPrevious":              true,
+	"CopyLine":                  true,
+	"Copy":                      true,
+	"Cut":                       true,
+	"CutLine":                   true,
+	"DuplicateLine":             true,
+	"DeleteLine":                true,
+	"MoveLinesUp":               true,
+	"MoveLinesDown":             true,
+	"IndentSelection":           true,
+	"OutdentSelection":          true,
+	"OutdentLine":               true,
+	"IndentLine":                true,
+	"Paste":                     true,
+	"PastePrimary":              true,
+	"SelectPageUp":              true,
+	"SelectPageDown":            true,
+	"StartOfLine":               true,
+	"StartOfText":               true,
+	"StartOfTextToggle":         true,
+	"EndOfLine":                 true,
+	"JumpToMatchingBrace":       true,
+}

internal/action/command.go

@@ -0,0 +1,982 @@
+package action
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+
+	shellquote "github.com/kballard/go-shellquote"
+	"github.com/zyedidia/micro/v2/internal/buffer"
+	"github.com/zyedidia/micro/v2/internal/clipboard"
+	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/screen"
+	"github.com/zyedidia/micro/v2/internal/shell"
+	"github.com/zyedidia/micro/v2/internal/util"
+)
+
+// A Command contains information about how to execute a command
+// It has the action for that command as well as a completer function
+type Command struct {
+	action    func(*BufPane, []string)
+	completer buffer.Completer
+}
+
+var commands map[string]Command
+
+func InitCommands() {
+	commands = map[string]Command{
+		"set":        {(*BufPane).SetCmd, OptionValueComplete},
+		"reset":      {(*BufPane).ResetCmd, OptionValueComplete},
+		"setlocal":   {(*BufPane).SetLocalCmd, OptionValueComplete},
+		"show":       {(*BufPane).ShowCmd, OptionComplete},
+		"showkey":    {(*BufPane).ShowKeyCmd, nil},
+		"run":        {(*BufPane).RunCmd, nil},
+		"bind":       {(*BufPane).BindCmd, nil},
+		"unbind":     {(*BufPane).UnbindCmd, nil},
+		"quit":       {(*BufPane).QuitCmd, nil},
+		"goto":       {(*BufPane).GotoCmd, nil},
+		"save":       {(*BufPane).SaveCmd, nil},
+		"replace":    {(*BufPane).ReplaceCmd, nil},
+		"replaceall": {(*BufPane).ReplaceAllCmd, nil},
+		"vsplit":     {(*BufPane).VSplitCmd, buffer.FileComplete},
+		"hsplit":     {(*BufPane).HSplitCmd, buffer.FileComplete},
+		"tab":        {(*BufPane).NewTabCmd, buffer.FileComplete},
+		"help":       {(*BufPane).HelpCmd, HelpComplete},
+		"eval":       {(*BufPane).EvalCmd, nil},
+		"log":        {(*BufPane).ToggleLogCmd, nil},
+		"plugin":     {(*BufPane).PluginCmd, PluginComplete},
+		"reload":     {(*BufPane).ReloadCmd, nil},
+		"reopen":     {(*BufPane).ReopenCmd, nil},
+		"cd":         {(*BufPane).CdCmd, buffer.FileComplete},
+		"pwd":        {(*BufPane).PwdCmd, nil},
+		"open":       {(*BufPane).OpenCmd, buffer.FileComplete},
+		"tabmove":    {(*BufPane).TabMoveCmd, nil},
+		"tabswitch":  {(*BufPane).TabSwitchCmd, nil},
+		"term":       {(*BufPane).TermCmd, nil},
+		"memusage":   {(*BufPane).MemUsageCmd, nil},
+		"retab":      {(*BufPane).RetabCmd, nil},
+		"raw":        {(*BufPane).RawCmd, nil},
+		"textfilter": {(*BufPane).TextFilterCmd, nil},
+	}
+}
+
+// MakeCommand is a function to easily create new commands
+// This can be called by plugins in Lua so that plugins can define their own commands
+func MakeCommand(name string, action func(bp *BufPane, args []string), completer buffer.Completer) {
+	if action != nil {
+		commands[name] = Command{action, completer}
+	}
+}
+
+// CommandEditAction returns a bindable function that opens a prompt with
+// the given string and executes the command when the user presses
+// enter
+func CommandEditAction(prompt string) BufKeyAction {
+	return func(h *BufPane) bool {
+		InfoBar.Prompt("> ", prompt, "Command", nil, func(resp string, canceled bool) {
+			if !canceled {
+				MainTab().CurPane().HandleCommand(resp)
+			}
+		})
+		return false
+	}
+}
+
+// CommandAction returns a bindable function which executes the
+// given command
+func CommandAction(cmd string) BufKeyAction {
+	return func(h *BufPane) bool {
+		MainTab().CurPane().HandleCommand(cmd)
+		return false
+	}
+}
+
+var PluginCmds = []string{"install", "remove", "update", "available", "list", "search"}
+
+// PluginCmd installs, removes, updates, lists, or searches for given plugins
+func (h *BufPane) PluginCmd(args []string) {
+	if len(args) < 1 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	if h.Buf.Type != buffer.BTLog {
+		h.OpenLogBuf()
+	}
+
+	config.PluginCommand(buffer.LogBuf, args[0], args[1:])
+}
+
+// RetabCmd changes all spaces to tabs or all tabs to spaces
+// depending on the user's settings
+func (h *BufPane) RetabCmd(args []string) {
+	h.Buf.Retab()
+}
+
+// RawCmd opens a new raw view which displays the escape sequences micro
+// is receiving in real-time
+func (h *BufPane) RawCmd(args []string) {
+	width, height := screen.Screen.Size()
+	iOffset := config.GetInfoBarOffset()
+	tp := NewTabFromPane(0, 0, width, height-iOffset, NewRawPane(nil))
+	Tabs.AddTab(tp)
+	Tabs.SetActive(len(Tabs.List) - 1)
+}
+
+// TextFilterCmd filters the selection through the command.
+// Selection goes to the command input.
+// On successful run command output replaces the current selection.
+func (h *BufPane) TextFilterCmd(args []string) {
+	if len(args) == 0 {
+		InfoBar.Error("usage: textfilter arguments")
+		return
+	}
+	sel := h.Cursor.GetSelection()
+	if len(sel) == 0 {
+		h.Cursor.SelectWord()
+		sel = h.Cursor.GetSelection()
+	}
+	var bout, berr bytes.Buffer
+	cmd := exec.Command(args[0], args[1:]...)
+	cmd.Stdin = strings.NewReader(string(sel))
+	cmd.Stderr = &berr
+	cmd.Stdout = &bout
+	err := cmd.Run()
+	if err != nil {
+		InfoBar.Error(err.Error() + " " + berr.String())
+		return
+	}
+	h.Cursor.DeleteSelection()
+	h.Buf.Insert(h.Cursor.Loc, bout.String())
+}
+
+// TabMoveCmd moves the current tab to a given index (starts at 1). The
+// displaced tabs are moved up.
+func (h *BufPane) TabMoveCmd(args []string) {
+	if len(args) <= 0 {
+		InfoBar.Error("Not enough arguments: provide an index, starting at 1")
+		return
+	}
+
+	if len(args[0]) <= 0 {
+		InfoBar.Error("Invalid argument: empty string")
+		return
+	}
+
+	num, err := strconv.Atoi(args[0])
+	if err != nil {
+		InfoBar.Error("Invalid argument: ", err)
+		return
+	}
+
+	// Preserve sign for relative move, if one exists
+	var shiftDirection byte
+	if strings.Contains("-+", string([]byte{args[0][0]})) {
+		shiftDirection = args[0][0]
+	}
+
+	// Relative positions -> absolute positions
+	idxFrom := Tabs.Active()
+	idxTo := 0
+	offset := util.Abs(num)
+	if shiftDirection == '-' {
+		idxTo = idxFrom - offset
+	} else if shiftDirection == '+' {
+		idxTo = idxFrom + offset
+	} else {
+		idxTo = offset - 1
+	}
+
+	// Restrain position to within the valid range
+	idxTo = util.Clamp(idxTo, 0, len(Tabs.List)-1)
+
+	activeTab := Tabs.List[idxFrom]
+	Tabs.RemoveTab(activeTab.ID())
+	Tabs.List = append(Tabs.List, nil)
+	copy(Tabs.List[idxTo+1:], Tabs.List[idxTo:])
+	Tabs.List[idxTo] = activeTab
+	Tabs.UpdateNames()
+	Tabs.SetActive(idxTo)
+	// InfoBar.Message(fmt.Sprintf("Moved tab from slot %d to %d", idxFrom+1, idxTo+1))
+}
+
+// TabSwitchCmd switches to a given tab either by name or by number
+func (h *BufPane) TabSwitchCmd(args []string) {
+	if len(args) > 0 {
+		num, err := strconv.Atoi(args[0])
+		if err != nil {
+			// Check for tab with this name
+
+			found := false
+			for i, t := range Tabs.List {
+				if t.Panes[t.active].Name() == args[0] {
+					Tabs.SetActive(i)
+					found = true
+				}
+			}
+			if !found {
+				InfoBar.Error("Could not find tab: ", err)
+			}
+		} else {
+			num--
+			if num >= 0 && num < len(Tabs.List) {
+				Tabs.SetActive(num)
+			} else {
+				InfoBar.Error("Invalid tab index")
+			}
+		}
+	}
+}
+
+// CdCmd changes the current working directory
+func (h *BufPane) CdCmd(args []string) {
+	if len(args) > 0 {
+		path, err := util.ReplaceHome(args[0])
+		if err != nil {
+			InfoBar.Error(err)
+			return
+		}
+		err = os.Chdir(path)
+		if err != nil {
+			InfoBar.Error(err)
+			return
+		}
+		wd, _ := os.Getwd()
+		for _, b := range buffer.OpenBuffers {
+			if len(b.Path) > 0 {
+				b.Path, _ = util.MakeRelative(b.AbsPath, wd)
+				if p, _ := filepath.Abs(b.Path); !strings.Contains(p, wd) {
+					b.Path = b.AbsPath
+				}
+			}
+		}
+	}
+}
+
+// MemUsageCmd prints micro's memory usage
+// Alloc shows how many bytes are currently in use
+// Sys shows how many bytes have been requested from the operating system
+// NumGC shows how many times the GC has been run
+// Note that Go commonly reserves more memory from the OS than is currently in-use/required
+// Additionally, even if Go returns memory to the OS, the OS does not always claim it because
+// there may be plenty of memory to spare
+func (h *BufPane) MemUsageCmd(args []string) {
+	InfoBar.Message(util.GetMemStats())
+}
+
+// PwdCmd prints the current working directory
+func (h *BufPane) PwdCmd(args []string) {
+	wd, err := os.Getwd()
+	if err != nil {
+		InfoBar.Message(err.Error())
+	} else {
+		InfoBar.Message(wd)
+	}
+}
+
+// OpenCmd opens a new buffer with a given filename
+func (h *BufPane) OpenCmd(args []string) {
+	if len(args) > 0 {
+		filename := args[0]
+		// the filename might or might not be quoted, so unquote first then join the strings.
+		args, err := shellquote.Split(filename)
+		if err != nil {
+			InfoBar.Error("Error parsing args ", err)
+			return
+		}
+		if len(args) == 0 {
+			return
+		}
+		filename = strings.Join(args, " ")
+
+		open := func() {
+			b, err := buffer.NewBufferFromFile(filename, buffer.BTDefault)
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			h.OpenBuffer(b)
+		}
+		if h.Buf.Modified() {
+			InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
+				if !canceled && !yes {
+					open()
+				} else if !canceled && yes {
+					h.Save()
+					open()
+				}
+			})
+		} else {
+			open()
+		}
+	} else {
+		InfoBar.Error("No filename")
+	}
+}
+
+// ToggleLogCmd toggles the log view
+func (h *BufPane) ToggleLogCmd(args []string) {
+	if h.Buf.Type != buffer.BTLog {
+		h.OpenLogBuf()
+	} else {
+		h.Quit()
+	}
+}
+
+// ReloadCmd reloads all files (syntax files, colorschemes...)
+func (h *BufPane) ReloadCmd(args []string) {
+	ReloadConfig()
+}
+
+func ReloadConfig() {
+	config.InitRuntimeFiles()
+	err := config.ReadSettings()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+	err = config.InitGlobalSettings()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+	InitBindings()
+	InitCommands()
+
+	err = config.InitColorscheme()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
+	for _, b := range buffer.OpenBuffers {
+		b.UpdateRules()
+	}
+}
+
+// ReopenCmd reopens the buffer (reload from disk)
+func (h *BufPane) ReopenCmd(args []string) {
+	if h.Buf.Modified() {
+		InfoBar.YNPrompt("Save file before reopen?", func(yes, canceled bool) {
+			if !canceled && yes {
+				h.Save()
+				h.Buf.ReOpen()
+			} else if !canceled {
+				h.Buf.ReOpen()
+			}
+		})
+	} else {
+		h.Buf.ReOpen()
+	}
+}
+
+func (h *BufPane) openHelp(page string) error {
+	if data, err := config.FindRuntimeFile(config.RTHelp, page).Data(); err != nil {
+		return errors.New(fmt.Sprint("Unable to load help text", page, "\n", err))
+	} else {
+		helpBuffer := buffer.NewBufferFromString(string(data), page+".md", buffer.BTHelp)
+		helpBuffer.SetName("Help " + page)
+
+		if h.Buf.Type == buffer.BTHelp {
+			h.OpenBuffer(helpBuffer)
+		} else {
+			h.HSplitBuf(helpBuffer)
+		}
+	}
+	return nil
+}
+
+// HelpCmd tries to open the given help page in a horizontal split
+func (h *BufPane) HelpCmd(args []string) {
+	if len(args) < 1 {
+		// Open the default help if the user just typed "> help"
+		h.openHelp("help")
+	} else {
+		if config.FindRuntimeFile(config.RTHelp, args[0]) != nil {
+			err := h.openHelp(args[0])
+			if err != nil {
+				InfoBar.Error(err)
+			}
+		} else {
+			InfoBar.Error("Sorry, no help for ", args[0])
+		}
+	}
+}
+
+// VSplitCmd opens a vertical split with file given in the first argument
+// If no file is given, it opens an empty buffer in a new split
+func (h *BufPane) VSplitCmd(args []string) {
+	if len(args) == 0 {
+		// Open an empty vertical split
+		h.VSplitAction()
+		return
+	}
+
+	buf, err := buffer.NewBufferFromFile(args[0], buffer.BTDefault)
+	if err != nil {
+		InfoBar.Error(err)
+		return
+	}
+
+	h.VSplitBuf(buf)
+}
+
+// HSplitCmd opens a horizontal split with file given in the first argument
+// If no file is given, it opens an empty buffer in a new split
+func (h *BufPane) HSplitCmd(args []string) {
+	if len(args) == 0 {
+		// Open an empty horizontal split
+		h.HSplitAction()
+		return
+	}
+
+	buf, err := buffer.NewBufferFromFile(args[0], buffer.BTDefault)
+	if err != nil {
+		InfoBar.Error(err)
+		return
+	}
+
+	h.HSplitBuf(buf)
+}
+
+// EvalCmd evaluates a lua expression
+func (h *BufPane) EvalCmd(args []string) {
+	InfoBar.Error("Eval unsupported")
+}
+
+// NewTabCmd opens the given file in a new tab
+func (h *BufPane) NewTabCmd(args []string) {
+	width, height := screen.Screen.Size()
+	iOffset := config.GetInfoBarOffset()
+	if len(args) > 0 {
+		for _, a := range args {
+			b, err := buffer.NewBufferFromFile(a, buffer.BTDefault)
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			tp := NewTabFromBuffer(0, 0, width, height-1-iOffset, b)
+			Tabs.AddTab(tp)
+			Tabs.SetActive(len(Tabs.List) - 1)
+		}
+	} else {
+		b := buffer.NewBufferFromString("", "", buffer.BTDefault)
+		tp := NewTabFromBuffer(0, 0, width, height-iOffset, b)
+		Tabs.AddTab(tp)
+		Tabs.SetActive(len(Tabs.List) - 1)
+	}
+}
+
+func SetGlobalOptionNative(option string, nativeValue interface{}) error {
+	local := false
+	for _, s := range config.LocalSettings {
+		if s == option {
+			local = true
+			break
+		}
+	}
+
+	if !local {
+		config.GlobalSettings[option] = nativeValue
+		config.ModifiedSettings[option] = true
+
+		if option == "colorscheme" {
+			// LoadSyntaxFiles()
+			config.InitColorscheme()
+			for _, b := range buffer.OpenBuffers {
+				b.UpdateRules()
+			}
+		} else if option == "infobar" || option == "keymenu" {
+			Tabs.Resize()
+		} else if option == "mouse" {
+			if !nativeValue.(bool) {
+				screen.Screen.DisableMouse()
+			} else {
+				screen.Screen.EnableMouse()
+			}
+		} else if option == "autosave" {
+			if nativeValue.(float64) > 0 {
+				config.SetAutoTime(int(nativeValue.(float64)))
+				config.StartAutoSave()
+			} else {
+				config.SetAutoTime(0)
+			}
+		} else if option == "paste" {
+			screen.Screen.SetPaste(nativeValue.(bool))
+		} else if option == "clipboard" {
+			m := clipboard.SetMethod(nativeValue.(string))
+			err := clipboard.Initialize(m)
+			if err != nil {
+				return err
+			}
+		} else {
+			for _, pl := range config.Plugins {
+				if option == pl.Name {
+					if nativeValue.(bool) && !pl.Loaded {
+						pl.Load()
+						_, err := pl.Call("init")
+						if err != nil && err != config.ErrNoSuchFunction {
+							screen.TermMessage(err)
+						}
+					} else if !nativeValue.(bool) && pl.Loaded {
+						_, err := pl.Call("deinit")
+						if err != nil && err != config.ErrNoSuchFunction {
+							screen.TermMessage(err)
+						}
+					}
+				}
+			}
+		}
+	}
+
+	for _, b := range buffer.OpenBuffers {
+		b.SetOptionNative(option, nativeValue)
+	}
+
+	return config.WriteSettings(filepath.Join(config.ConfigDir, "settings.json"))
+}
+
+func SetGlobalOption(option, value string) error {
+	if _, ok := config.GlobalSettings[option]; !ok {
+		return config.ErrInvalidOption
+	}
+
+	nativeValue, err := config.GetNativeValue(option, config.GlobalSettings[option], value)
+	if err != nil {
+		return err
+	}
+
+	return SetGlobalOptionNative(option, nativeValue)
+}
+
+// ResetCmd resets a setting to its default value
+func (h *BufPane) ResetCmd(args []string) {
+	if len(args) < 1 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	option := args[0]
+
+	defaultGlobals := config.DefaultGlobalSettings()
+	defaultLocals := config.DefaultCommonSettings()
+
+	if _, ok := defaultGlobals[option]; ok {
+		SetGlobalOptionNative(option, defaultGlobals[option])
+		return
+	}
+	if _, ok := defaultLocals[option]; ok {
+		h.Buf.SetOptionNative(option, defaultLocals[option])
+		return
+	}
+	InfoBar.Error(config.ErrInvalidOption)
+}
+
+// SetCmd sets an option
+func (h *BufPane) SetCmd(args []string) {
+	if len(args) < 2 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	option := args[0]
+	value := args[1]
+
+	err := SetGlobalOption(option, value)
+	if err == config.ErrInvalidOption {
+		err := h.Buf.SetOption(option, value)
+		if err != nil {
+			InfoBar.Error(err)
+		}
+	} else if err != nil {
+		InfoBar.Error(err)
+	}
+}
+
+// SetLocalCmd sets an option local to the buffer
+func (h *BufPane) SetLocalCmd(args []string) {
+	if len(args) < 2 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	option := args[0]
+	value := args[1]
+
+	err := h.Buf.SetOption(option, value)
+	if err != nil {
+		InfoBar.Error(err)
+	}
+}
+
+// ShowCmd shows the value of the given option
+func (h *BufPane) ShowCmd(args []string) {
+	if len(args) < 1 {
+		InfoBar.Error("Please provide an option to show")
+		return
+	}
+
+	var option interface{}
+	if opt, ok := h.Buf.Settings[args[0]]; ok {
+		option = opt
+	} else if opt, ok := config.GlobalSettings[args[0]]; ok {
+		option = opt
+	}
+
+	if option == nil {
+		InfoBar.Error(args[0], " is not a valid option")
+		return
+	}
+
+	InfoBar.Message(option)
+}
+
+// ShowKeyCmd displays the action that a key is bound to
+func (h *BufPane) ShowKeyCmd(args []string) {
+	if len(args) < 1 {
+		InfoBar.Error("Please provide a key to show")
+		return
+	}
+
+	event, err := findEvent(args[0])
+	if err != nil {
+		InfoBar.Error(err)
+		return
+	}
+	if action, ok := config.Bindings["buffer"][event.Name()]; ok {
+		InfoBar.Message(action)
+	} else {
+		InfoBar.Message(args[0], " has no binding")
+	}
+}
+
+// BindCmd creates a new keybinding
+func (h *BufPane) BindCmd(args []string) {
+	if len(args) < 2 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	_, err := TryBindKey(args[0], args[1], true)
+	if err != nil {
+		InfoBar.Error(err)
+	}
+}
+
+// UnbindCmd binds a key to its default action
+func (h *BufPane) UnbindCmd(args []string) {
+	if len(args) < 1 {
+		InfoBar.Error("Not enough arguments")
+		return
+	}
+
+	err := UnbindKey(args[0])
+	if err != nil {
+		InfoBar.Error(err)
+	}
+}
+
+// RunCmd runs a shell command in the background
+func (h *BufPane) RunCmd(args []string) {
+	runf, err := shell.RunBackgroundShell(shellquote.Join(args...))
+	if err != nil {
+		InfoBar.Error(err)
+	} else {
+		go func() {
+			InfoBar.Message(runf())
+			screen.Redraw()
+		}()
+	}
+}
+
+// QuitCmd closes the main view
+func (h *BufPane) QuitCmd(args []string) {
+	h.Quit()
+}
+
+// GotoCmd is a command that will send the cursor to a certain
+// position in the buffer
+// For example: `goto line`, or `goto line:col`
+func (h *BufPane) GotoCmd(args []string) {
+	if len(args) <= 0 {
+		InfoBar.Error("Not enough arguments")
+	} else {
+		h.RemoveAllMultiCursors()
+		if strings.Contains(args[0], ":") {
+			parts := strings.SplitN(args[0], ":", 2)
+			line, err := strconv.Atoi(parts[0])
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			col, err := strconv.Atoi(parts[1])
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			if line < 0 {
+				line = h.Buf.LinesNum() + 1 + line
+			}
+			line = util.Clamp(line-1, 0, h.Buf.LinesNum()-1)
+			col = util.Clamp(col-1, 0, util.CharacterCount(h.Buf.LineBytes(line)))
+			h.GotoLoc(buffer.Loc{col, line})
+		} else {
+			line, err := strconv.Atoi(args[0])
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			if line < 0 {
+				line = h.Buf.LinesNum() + 1 + line
+			}
+			line = util.Clamp(line-1, 0, h.Buf.LinesNum()-1)
+			h.GotoLoc(buffer.Loc{0, line})
+		}
+	}
+}
+
+// SaveCmd saves the buffer optionally with an argument file name
+func (h *BufPane) SaveCmd(args []string) {
+	if len(args) == 0 {
+		h.Save()
+	} else {
+		h.Buf.SaveAs(args[0])
+	}
+}
+
+// ReplaceCmd runs search and replace
+func (h *BufPane) ReplaceCmd(args []string) {
+	if len(args) < 2 || len(args) > 4 {
+		// We need to find both a search and replace expression
+		InfoBar.Error("Invalid replace statement: " + strings.Join(args, " "))
+		return
+	}
+
+	all := false
+	noRegex := false
+
+	foundSearch := false
+	foundReplace := false
+	var search string
+	var replaceStr string
+	for _, arg := range args {
+		switch arg {
+		case "-a":
+			all = true
+		case "-l":
+			noRegex = true
+		default:
+			if !foundSearch {
+				foundSearch = true
+				search = arg
+			} else if !foundReplace {
+				foundReplace = true
+				replaceStr = arg
+			} else {
+				InfoBar.Error("Invalid flag: " + arg)
+				return
+			}
+		}
+	}
+
+	if noRegex {
+		search = regexp.QuoteMeta(search)
+	}
+
+	replace := []byte(replaceStr)
+
+	var regex *regexp.Regexp
+	var err error
+	if h.Buf.Settings["ignorecase"].(bool) {
+		regex, err = regexp.Compile("(?im)" + search)
+	} else {
+		regex, err = regexp.Compile("(?m)" + search)
+	}
+	if err != nil {
+		// There was an error with the user's regex
+		InfoBar.Error(err)
+		return
+	}
+
+	nreplaced := 0
+	start := h.Buf.Start()
+	end := h.Buf.End()
+	selection := h.Cursor.HasSelection()
+	if selection {
+		start = h.Cursor.CurSelection[0]
+		end = h.Cursor.CurSelection[1]
+	}
+	if all {
+		nreplaced, _ = h.Buf.ReplaceRegex(start, end, regex, replace)
+	} else {
+		inRange := func(l buffer.Loc) bool {
+			return l.GreaterEqual(start) && l.LessEqual(end)
+		}
+
+		searchLoc := h.Cursor.Loc
+		var doReplacement func()
+		doReplacement = func() {
+			locs, found, err := h.Buf.FindNext(search, start, end, searchLoc, true, true)
+			if err != nil {
+				InfoBar.Error(err)
+				return
+			}
+			if !found || !inRange(locs[0]) || !inRange(locs[1]) {
+				h.Cursor.ResetSelection()
+				h.Buf.RelocateCursors()
+
+				return
+			}
+
+			h.Cursor.SetSelectionStart(locs[0])
+			h.Cursor.SetSelectionEnd(locs[1])
+			h.GotoLoc(locs[0])
+			h.Buf.LastSearch = search
+			h.Buf.LastSearchRegex = true
+			h.Buf.HighlightSearch = h.Buf.Settings["hlsearch"].(bool)
+
+			InfoBar.YNPrompt("Perform replacement (y,n,esc)", func(yes, canceled bool) {
+				if !canceled && yes {
+					_, nrunes := h.Buf.ReplaceRegex(locs[0], locs[1], regex, replace)
+
+					searchLoc = locs[0]
+					searchLoc.X += nrunes + locs[0].Diff(locs[1], h.Buf)
+					if end.Y == locs[1].Y {
+						end = end.Move(nrunes, h.Buf)
+					}
+					h.Cursor.Loc = searchLoc
+					nreplaced++
+				} else if !canceled && !yes {
+					searchLoc = locs[1]
+				} else if canceled {
+					h.Cursor.ResetSelection()
+					h.Buf.RelocateCursors()
+					return
+				}
+				doReplacement()
+			})
+		}
+		doReplacement()
+	}
+
+	h.Buf.RelocateCursors()
+	h.Relocate()
+
+	var s string
+	if nreplaced > 1 {
+		s = fmt.Sprintf("Replaced %d occurrences of %s", nreplaced, search)
+	} else if nreplaced == 1 {
+		s = fmt.Sprintf("Replaced 1 occurrence of %s", search)
+	} else {
+		s = fmt.Sprintf("Nothing matched %s", search)
+	}
+
+	if selection {
+		s += " in selection"
+	}
+
+	InfoBar.Message(s)
+}
+
+// ReplaceAllCmd replaces search term all at once
+func (h *BufPane) ReplaceAllCmd(args []string) {
+	// aliased to Replace command
+	h.ReplaceCmd(append(args, "-a"))
+}
+
+// TermCmd opens a terminal in the current view
+func (h *BufPane) TermCmd(args []string) {
+	ps := h.tab.Panes
+
+	if !TermEmuSupported {
+		InfoBar.Error("Terminal emulator not supported on this system")
+		return
+	}
+
+	if len(args) == 0 {
+		sh := os.Getenv("SHELL")
+		if sh == "" {
+			InfoBar.Error("Shell environment not found")
+			return
+		}
+		args = []string{sh}
+	}
+
+	term := func(i int, newtab bool) {
+		t := new(shell.Terminal)
+		err := t.Start(args, false, true, nil, nil)
+		if err != nil {
+			InfoBar.Error(err)
+			return
+		}
+
+		id := h.ID()
+		if newtab {
+			h.AddTab()
+			i = 0
+			id = MainTab().Panes[0].ID()
+		} else {
+			MainTab().Panes[i].Close()
+		}
+
+		v := h.GetView()
+		tp, err := NewTermPane(v.X, v.Y, v.Width, v.Height, t, id, MainTab())
+		if err != nil {
+			InfoBar.Error(err)
+			return
+		}
+		MainTab().Panes[i] = tp
+		MainTab().SetActive(i)
+	}
+
+	// If there is only one open file we make a new tab instead of overwriting it
+	newtab := len(MainTab().Panes) == 1 && len(Tabs.List) == 1
+
+	if newtab {
+		term(0, true)
+		return
+	}
+
+	for i, p := range ps {
+		if p.ID() == h.ID() {
+			if h.Buf.Modified() {
+				InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
+					if !canceled && !yes {
+						term(i, false)
+					} else if !canceled && yes {
+						h.Save()
+						term(i, false)
+					}
+				})
+			} else {
+				term(i, false)
+			}
+		}
+	}
+}
+
+// HandleCommand handles input from the user
+func (h *BufPane) HandleCommand(input string) {
+	args, err := shellquote.Split(input)
+	if err != nil {
+		InfoBar.Error("Error parsing args ", err)
+		return
+	}
+
+	if len(args) == 0 {
+		return
+	}
+
+	inputCmd := args[0]
+
+	if _, ok := commands[inputCmd]; !ok {
+		InfoBar.Error("Unknown command ", inputCmd)
+	} else {
+		WriteLog("> " + input + "\n")
+		commands[inputCmd].action(h, args[1:])
+		WriteLog("\n")
+	}
+}

internal/action/defaults.go

@@ -0,0 +1,21 @@
+package action
+
+var termdefaults = map[string]string{
+	"<Ctrl-q><Ctrl-q>": "Exit",
+	"<Ctrl-e><Ctrl-e>": "CommandMode",
+	"<Ctrl-w><Ctrl-w>": "NextSplit",
+}
+
+// DefaultBindings returns a map containing micro's default keybindings
+func DefaultBindings(pane string) map[string]string {
+	switch pane {
+	case "command":
+		return infodefaults
+	case "buffer":
+		return bufdefaults
+	case "terminal":
+		return termdefaults
+	default:
+		return map[string]string{}
+	}
+}

internal/action/defaults_darwin.go

@@ -0,0 +1,182 @@
+package action
+
+var bufdefaults = map[string]string{
+	"Up":             "CursorUp",
+	"Down":           "CursorDown",
+	"Right":          "CursorRight",
+	"Left":           "CursorLeft",
+	"ShiftUp":        "SelectUp",
+	"ShiftDown":      "SelectDown",
+	"ShiftLeft":      "SelectLeft",
+	"ShiftRight":     "SelectRight",
+	"AltLeft":        "WordLeft",
+	"AltRight":       "WordRight",
+	"AltUp":          "MoveLinesUp",
+	"AltDown":        "MoveLinesDown",
+	"AltShiftRight":  "SelectWordRight",
+	"AltShiftLeft":   "SelectWordLeft",
+	"CtrlLeft":       "StartOfTextToggle",
+	"CtrlRight":      "EndOfLine",
+	"CtrlShiftLeft":  "SelectToStartOfTextToggle",
+	"ShiftHome":      "SelectToStartOfTextToggle",
+	"CtrlShiftRight": "SelectToEndOfLine",
+	"ShiftEnd":       "SelectToEndOfLine",
+	"CtrlUp":         "CursorStart",
+	"CtrlDown":       "CursorEnd",
+	"CtrlShiftUp":    "SelectToStart",
+	"CtrlShiftDown":  "SelectToEnd",
+	"Alt-{":          "ParagraphPrevious",
+	"Alt-}":          "ParagraphNext",
+	"Enter":          "InsertNewline",
+	"CtrlH":          "Backspace",
+	"Backspace":      "Backspace",
+	"OldBackspace":   "Backspace",
+	"Alt-CtrlH":      "DeleteWordLeft",
+	"Alt-Backspace":  "DeleteWordLeft",
+	"Tab":            "Autocomplete|IndentSelection|InsertTab",
+	"Backtab":        "CycleAutocompleteBack|OutdentSelection|OutdentLine",
+	"Ctrl-o":         "OpenFile",
+	"Ctrl-s":         "Save",
+	"Ctrl-f":         "Find",
+	"Alt-F":          "FindLiteral",
+	"Ctrl-n":         "FindNext",
+	"Ctrl-p":         "FindPrevious",
+	"Alt-[":          "DiffPrevious|CursorStart",
+	"Alt-]":          "DiffNext|CursorEnd",
+	"Ctrl-z":         "Undo",
+	"Ctrl-y":         "Redo",
+	"Ctrl-c":         "CopyLine|Copy",
+	"Ctrl-x":         "Cut",
+	"Ctrl-k":         "CutLine",
+	"Ctrl-d":         "DuplicateLine",
+	"Ctrl-v":         "Paste",
+	"Ctrl-a":         "SelectAll",
+	"Ctrl-t":         "AddTab",
+	"Alt-,":          "PreviousTab",
+	"Alt-.":          "NextTab",
+	"Home":           "StartOfTextToggle",
+	"End":            "EndOfLine",
+	"CtrlHome":       "CursorStart",
+	"CtrlEnd":        "CursorEnd",
+	"PageUp":         "CursorPageUp",
+	"PageDown":       "CursorPageDown",
+	"CtrlPageUp":     "PreviousTab",
+	"CtrlPageDown":   "NextTab",
+	"Ctrl-g":         "ToggleHelp",
+	"Alt-g":          "ToggleKeyMenu",
+	"Ctrl-r":         "ToggleRuler",
+	"Ctrl-l":         "command-edit:goto ",
+	"Delete":         "Delete",
+	"Ctrl-b":         "ShellMode",
+	"Ctrl-q":         "Quit",
+	"Ctrl-e":         "CommandMode",
+	"Ctrl-w":         "NextSplit",
+	"Ctrl-u":         "ToggleMacro",
+	"Ctrl-j":         "PlayMacro",
+	"Insert":         "ToggleOverwriteMode",
+
+	// Emacs-style keybindings
+	"Alt-f": "WordRight",
+	"Alt-b": "WordLeft",
+	"Alt-a": "StartOfText",
+	"Alt-e": "EndOfLine",
+	// "Alt-p": "CursorUp",
+	// "Alt-n": "CursorDown",
+
+	// Integration with file managers
+	"F2":  "Save",
+	"F3":  "Find",
+	"F4":  "Quit",
+	"F7":  "Find",
+	"F10": "Quit",
+	"Esc": "Escape,Deselect,ClearInfo,RemoveAllMultiCursors,UnhighlightSearch",
+
+	// Mouse bindings
+	"MouseWheelUp":   "ScrollUp",
+	"MouseWheelDown": "ScrollDown",
+	"MouseLeft":      "MousePress",
+	"MouseMiddle":    "PastePrimary",
+	"Ctrl-MouseLeft": "MouseMultiCursor",
+
+	"Alt-n":        "SpawnMultiCursor",
+	"AltShiftUp":   "SpawnMultiCursorUp",
+	"AltShiftDown": "SpawnMultiCursorDown",
+	"Alt-m":        "SpawnMultiCursorSelect",
+	"Alt-p":        "RemoveMultiCursor",
+	"Alt-c":        "RemoveAllMultiCursors",
+	"Alt-x":        "SkipMultiCursor",
+}
+
+var infodefaults = map[string]string{
+	"Up":             "HistoryUp",
+	"Down":           "HistoryDown",
+	"Right":          "CursorRight",
+	"Left":           "CursorLeft",
+	"ShiftUp":        "SelectUp",
+	"ShiftDown":      "SelectDown",
+	"ShiftLeft":      "SelectLeft",
+	"ShiftRight":     "SelectRight",
+	"AltLeft":        "WordLeft",
+	"AltRight":       "WordRight",
+	"AltUp":          "CursorStart",
+	"AltDown":        "CursorEnd",
+	"AltShiftRight":  "SelectWordRight",
+	"AltShiftLeft":   "SelectWordLeft",
+	"CtrlLeft":       "StartOfTextToggle",
+	"CtrlRight":      "EndOfLine",
+	"CtrlShiftLeft":  "SelectToStartOfTextToggle",
+	"ShiftHome":      "SelectToStartOfTextToggle",
+	"CtrlShiftRight": "SelectToEndOfLine",
+	"ShiftEnd":       "SelectToEndOfLine",
+	"CtrlUp":         "CursorStart",
+	"CtrlDown":       "CursorEnd",
+	"CtrlShiftUp":    "SelectToStart",
+	"CtrlShiftDown":  "SelectToEnd",
+	"Enter":          "ExecuteCommand",
+	"CtrlH":          "Backspace",
+	"Backspace":      "Backspace",
+	"OldBackspace":   "Backspace",
+	"Alt-CtrlH":      "DeleteWordLeft",
+	"Alt-Backspace":  "DeleteWordLeft",
+	"Tab":            "CommandComplete",
+	"Backtab":        "CycleAutocompleteBack",
+	"Ctrl-z":         "Undo",
+	"Ctrl-y":         "Redo",
+	"Ctrl-c":         "CopyLine|Copy",
+	"Ctrl-x":         "Cut",
+	"Ctrl-k":         "CutLine",
+	"Ctrl-v":         "Paste",
+	"Home":           "StartOfTextToggle",
+	"End":            "EndOfLine",
+	"CtrlHome":       "CursorStart",
+	"CtrlEnd":        "CursorEnd",
+	"Delete":         "Delete",
+	"Ctrl-q":         "AbortCommand",
+	"Ctrl-e":         "EndOfLine",
+	"Ctrl-a":         "StartOfLine",
+	"Ctrl-w":         "DeleteWordLeft",
+	"Insert":         "ToggleOverwriteMode",
+	"Ctrl-b":         "WordLeft",
+	"Ctrl-f":         "WordRight",
+	"Ctrl-d":         "DeleteWordLeft",
+	"Ctrl-m":         "ExecuteCommand",
+	"Ctrl-n":         "HistoryDown",
+	"Ctrl-p":         "HistoryUp",
+	"Ctrl-u":         "SelectToStart",
+
+	// Emacs-style keybindings
+	"Alt-f": "WordRight",
+	"Alt-b": "WordLeft",
+	"Alt-a": "StartOfText",
+	"Alt-e": "EndOfLine",
+
+	// Integration with file managers
+	"F10": "AbortCommand",
+	"Esc": "AbortCommand",
+
+	// Mouse bindings
+	"MouseWheelUp":   "HistoryUp",
+	"MouseWheelDown": "HistoryDown",
+	"MouseLeft":      "MousePress",
+	"MouseMiddle":    "PastePrimary",
+}