Disable fake cursor for Windows Terminal

Ref #1900

.github/workflows/test.yaml

@@ -1,22 +0,0 @@
-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

@@ -15,5 +15,6 @@ benchmark_results*
 tools/build-version
 tools/build-date
 tools/info-plist
+tools/bindata
 tools/vscode-tests/
 *.hdr

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "tools/go-bindata"]
+	path = tools/go-bindata
+	url = https://github.com/zyedidia/go-bindata

.travis.yml

@@ -0,0 +1,11 @@
+language: go
+go:
+    - "1.13.x"
+os:
+    - linux
+    - osx
+    - windows
+script:
+    - go build ./cmd/micro
+    - go test ./internal/...
+    - go test ./cmd/...

Makefile

@@ -1,4 +1,4 @@
-.PHONY: runtime build generate build-quick
+.PHONY: runtime
 
 VERSION = $(shell GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) \
 	go run tools/build-version.go)
@@ -7,35 +7,52 @@ 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) \
 	GOARCH=$(shell go env GOHOSTARCH) \
-	go run tools/info-plist.go "$(shell go env GOOS)" "$(VERSION)")
+	go run tools/info-plist.go "$(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/'
 
-build: generate build-quick
-
-build-quick:
+# Builds micro after checking dependencies but without updating the runtime
+build:
 	go build -trimpath -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
 build-dbg:
 	go build -trimpath -ldflags "-s -w $(ADDITIONAL_GO_LINKER_FLAGS) $(DEBUGVAR)" ./cmd/micro
 
-build-tags: fetch-tags generate
+build-tags: fetch-tags
 	go build -trimpath -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
-build-all: build
+# Builds micro after building the runtime and checking dependencies
+build-all: runtime build
 
-install: generate
+# Builds micro without checking for dependencies
+build-quick:
+	go build -trimpath -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
+
+# Same as 'build' but installs to $GOBIN afterward
+install:
 	go install -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)" ./cmd/micro
 
-install-all: install
+# Same as 'build-all' but installs to $GOBIN afterward
+install-all: runtime install
+
+# Same as 'build-quick' but installs to $GOBIN afterward
+install-quick:
+	go install -ldflags "-s -w $(GOVARS) $(ADDITIONAL_GO_LINKER_FLAGS)"  ./cmd/micro
 
 fetch-tags:
 	git fetch --tags
 
-generate:
-	GOOS=$(shell go env GOHOSTOS) GOARCH=$(shell go env GOHOSTARCH) go generate ./runtime
+# Builds the runtime
+runtime:
+	git submodule update --init
+	rm -f runtime/syntax/*.hdr
+	go run runtime/syntax/make_headers.go runtime/syntax
+	go build -o tools/bindata ./tools/go-bindata
+	tools/bindata -pkg config -nomemcopy -nometadata -o runtime.go runtime/...
+	mv runtime.go internal/config
+	gofmt -w internal/config/runtime.go
 
 testgen:
 	mkdir -p tools/vscode-tests

README.md

@@ -1,11 +1,11 @@
-<img alt="micro logo" src="./assets/micro-logo-drop.svg" width="500px"/>
+<img alt="micro logo" src="./assets/micro-logo.svg" width="500px"/>
 
-![Test Workflow](https://github.com/zyedidia/micro/actions/workflows/test.yaml/badge.svg)
+[![Build Status](https://travis-ci.org/zyedidia/micro.svg?branch=master)](https://travis-ci.org/zyedidia/micro)
 [![Go Report Card](https://goreportcard.com/badge/github.com/zyedidia/micro)](https://goreportcard.com/report/github.com/zyedidia/micro)
 [![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)
 [![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)
+[![Snap Status](https://build.snapcraft.io/badge/zyedidia/micro.svg)](https://build.snapcraft.io/user/zyedidia/micro)
 
 **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!
@@ -17,7 +17,7 @@ Here is a picture of micro editing its source code.
 
 ![Screenshot](./assets/micro-solarized.png)
 
-To see more screenshots of micro, showcasing some of the default color schemes, see [here](https://micro-editor.github.io).
+To see more screenshots of micro, showcasing some of the default color schemes, see [here](http://zbyedidia.webfactional.com/micro/screenshots.html).
  
 You can also check out the website for Micro at https://micro-editor.github.io.
 
@@ -25,7 +25,7 @@ You can also check out the website for Micro at https://micro-editor.github.io.
 
 - [Features](#features)
 - [Installation](#installation)
-  - [Prebuilt binaries](#pre-built-binaries)
+  - [Prebuilt binaries](#prebuilt-binaries)
   - [Package Managers](#package-managers)
   - [Building from source](#building-from-source)
   - [Fully static binary](#fully-static-binary)
@@ -81,13 +81,17 @@ stable version if you install from the prebuilt binaries, Homebrew, or Snap.
 
 A desktop entry file and man page can be found in the [assets/packaging](https://github.com/zyedidia/micro/tree/master/assets/packaging) directory.
 
-### Pre-built binaries
+### Prebuilt binaries
 
-Pre-built binaries are distributed with [releases](https://github.com/zyedidia/micro/releases).
+All you need to install micro is one file, the binary itself. It's as simple as that!
 
-To uninstall micro, simply remove the binary, and the configuration directory at `~/.config/micro`.
+Download the binary from the [releases](https://github.com/zyedidia/micro/releases) page.
 
-#### Quick-install script
+### Installation script
+
+There is a script which can install micro for you by downloading the latest prebuilt binary. You can find it at <https://getmic.ro>.
+
+You can easily install micro by running
 
 ```bash
 curl https://getmic.ro | bash
@@ -95,24 +99,7 @@ curl https://getmic.ro | bash
 
 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.
 
-#### Eget
-
-With [Eget](https://github.com/zyedidia/eget) installed, you can easily get a pre-built binary:
-
-```
-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.
+To uninstall micro, simply remove the binary, and the configuration directory at `~/.config/micro`.
 
 ### Package managers
 
@@ -132,19 +119,18 @@ On Linux, you can install micro through [snap](https://snapcraft.io/docs/core/in
 snap install micro --classic
 ```
 
-Micro is also available through other package managers on Linux such dnf, AUR, Nix, and package managers
+**Note for Linux:** for interfacing with the local system clipboard, `xclip` or `xsel`
+must be installed. Please see the section on [Linux clipboard support](https://github.com/zyedidia/micro#linux-clipboard-support)
+further below.
+
+Micro is also available through other package managers on Linux such as apt, dnf, AUR, Nix, and package managers
 for other operating systems. These packages are not guaranteed to be up-to-date.
 
-<!-- * `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.
+    * `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.
     * `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)
+    * `yay -S micro` (Arch Linux).
     * `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`.
@@ -153,22 +139,12 @@ for other operating systems. These packages are not guaranteed to be up-to-date.
     * `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 1.16 or greater and Go modules are enabled.
+Make sure that you have Go version 1.11 or greater and Go modules are enabled.
 
 ```
 git clone https://github.com/zyedidia/micro
@@ -203,17 +179,14 @@ If you are using macOS, you should consider using [iTerm2](http://iterm2.com/) i
 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
+### Linux clipboard support
 
-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.
+On Linux, clipboard support requires:
 
-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).
+- On X11, the `xclip` or `xsel` commands (for Ubuntu: `sudo apt install xclip`)
+- On Wayland, the `wl-clipboard` command
+
+If you don't have these commands, micro will use an internal clipboard for copy and paste, but it won't work with external applications.
 
 ### Colors and syntax highlighting
 
@@ -249,7 +222,7 @@ Once you have built the editor, start it by running `micro path/to/file.txt` or
 micro also supports creating buffers from `stdin`:
 
 ```sh
-ip a | micro
+ifconfig | micro
 ```
 
 You can move the cursor around with the arrow keys and mouse.
@@ -273,8 +246,6 @@ view the help files here:
 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.
 
-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.
@@ -282,6 +253,6 @@ If you find any bugs, please report them! I am also happy to accept pull request
 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) 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.
+For a more informal setting to discuss the editor, you can join the [Gitter chat](https://gitter.im/zyedidia/micro).
 
 Sometimes I am unresponsive, and I apologize! If that happens, please ping me.

assets/micro-logo-drop.svg

@@ -1,109 +0,0 @@
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-     d="m 30.192709,86.597991 c -0.530828,-0.09608 -1.19875,-0.411872 -1.578921,-0.746511 -0.792953,-0.697985 -1.054327,-1.680313 -0.947823,-3.562219 0.16271,-2.875042 0.852662,-6.034057 2.963728,-13.569713 0.66017,-2.356543 0.955814,-3.307037 3.762987,-12.097989 1.219825,-3.820007 1.435496,-4.505244 1.616654,-5.136492 0.306236,-1.067081 0.590331,-2.663175 0.753866,-4.235353 0.08592,-0.826044 0.236455,-2.096649 0.334514,-2.823568 0.09806,-0.726919 0.246246,-1.916422 0.329306,-2.643341 0.08306,-0.726918 0.231698,-1.902905 0.330307,-2.613302 0.09861,-0.710398 0.231242,-1.724179 0.294741,-2.252848 0.19473,-1.621264 0.604712,-4.037809 0.845956,-4.986301 0.495326,-1.947452 1.158621,-3.216325 2.26111,-4.325467 0.731983,-0.736399 1.547763,-1.051329 2.723316,-1.051329 1.344787,0 2.103359,0.409522 2.539237,1.370828 0.373167,0.823003 0.432731,1.702332 0.227502,3.358553 -0.206897,1.669687 -0.429401,2.498899 -1.62432,6.053417 -0.891865,2.653022 -1.418886,4.025585 -2.237847,5.828196 -0.890733,1.960586 -1.401439,3.281416 -2.291175,5.925621 -0.696894,2.071095 -0.858755,3.003396 -0.79649,4.587665 0.05016,1.276299 0.270881,2.168068 0.761945,3.078469 1.114561,2.066325 3.341124,3.259541 6.082361,3.259541 0.831865,0 1.52957,-0.113832 2.245267,-0.366322 1.037155,-0.365895 1.69838,-0.767468 2.829986,-1.718697 2.058613,-1.730473 4.031033,-4.098263 5.356083,-6.429706 1.132231,-1.992175 2.742129,-5.986041 2.978686,-7.389579 0.126006,-0.747618 0.37151,-2.073261 0.753923,-4.070941 0.459374,-2.399719 0.965049,-5.073707 1.26106,-6.668427 0.439666,-2.368642 0.948255,-3.731056 1.831386,-4.905927 1.000947,-1.33161 1.919678,-1.818989 3.424905,-1.816884 1.371199,0.0019 2.259901,0.453797 2.692584,1.369104 0.199937,0.42295 0.37898,1.160518 0.431897,1.779189 0.0423,0.494585 -0.08313,1.707742 -0.270194,2.613303 -0.520247,2.51845 -2.995194,9.527499 -4.836622,13.697311 -0.189691,0.429543 -0.709117,1.619046 -1.154281,2.64334 -0.445164,1.024295 -0.903857,2.078627 -1.019317,2.342962 -0.593057,1.357747 -0.644155,1.607255 -0.563046,2.7493 0.142046,2.000035 0.604952,3.420811 1.436759,4.409774 0.719848,0.85585 1.902762,1.62255 2.859809,1.853569 0.533147,0.128695 1.669602,0.128252 2.472607,-9.67e-4 1.437635,-0.231339 2.769133,-0.900566 3.72751,-1.873493 1.098243,-1.114915 2.227996,-3.662559 2.785802,-6.282105 l 0.13752,-0.645816 h 0.37414 0.37414 l 0.04419,0.94284 c 0.124949,2.666054 -0.382363,6.016009 -1.237138,8.16926 -0.848692,2.137927 -2.617365,4.354096 -4.156972,5.208738 -1.58257,0.878493 -4.420415,1.19721 -6.111929,0.68643 -0.649563,-0.196146 -1.47209,-0.685817 -1.961392,-1.167665 -1.354216,-1.333585 -1.999054,-3.254244 -2.18916,-6.52045 -0.03525,-0.60571 -0.04689,-1.38515 -0.02584,-1.732089 0.04435,-0.731258 0.257009,-2.357205 0.335205,-2.562875 0.04613,-0.121335 0.03516,-0.140427 -0.08025,-0.139702 -0.11259,7.09e-4 -0.171074,0.09313 -0.370649,0.58574 -0.571777,1.411317 -1.625409,3.288777 -2.58713,4.609988 -2.555402,3.510606 -5.935984,6.014779 -9.311242,6.897323 -1.386313,0.362485 -1.927076,0.42829 -3.514441,0.427668 -1.398071,-5.41e-4 -1.500695,-0.0084 -2.047014,-0.157216 -1.248806,-0.340101 -2.244463,-0.904197 -3.05944,-1.733346 -1.343156,-1.366511 -2.129105,-3.116872 -2.494126,-5.554581 -0.150028,-1.001927 -0.191427,-3.616227 -0.06949,-4.388291 0.05195,-0.328906 0.113311,-0.84947 0.136367,-1.156809 l 0.04192,-0.558799 -0.380315,0.01812 -0.380315,0.01812 -0.231805,0.570721 c -1.478913,3.641182 -3.072314,10.383891 -3.918324,16.580955 -0.190557,1.395837 -0.701916,5.676121 -0.706953,5.917479 -0.0093,0.446744 0.454257,2.427922 0.818884,3.499628 0.121802,0.358001 0.382754,1.549663 0.538684,2.459961 0.04595,0.268246 -0.06655,1.468043 -0.178759,1.906478 -0.165253,0.645686 -0.477741,1.20884 -0.915337,1.649588 -0.463951,0.467293 -0.819805,0.689321 -1.309045,0.816755 -0.410787,0.106995 -0.564727,0.106887 -1.159735,-7.81e-4 z"
-     id="path240" /></svg>
+     style="fill:#2e3192" /></svg>

assets/packaging/deb/micro.postinst

@@ -1,9 +0,0 @@
-#!/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

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

assets/packaging/micro.desktop

@@ -12,5 +12,4 @@ Keywords=text;editor;syntax;terminal;
 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/clean.go

@@ -23,9 +23,12 @@ func shouldContinue() bool {
 		return false
 	}
 
-	text = strings.TrimRight(text, "\r\n")
+	if len(text) <= 1 {
+		// default continue
+		return true
+	}
 
-	return len(text) == 0 || strings.ToLower(text)[0] == 'y'
+	return strings.ToLower(text)[0] == 'y'
 }
 
 // CleanConfig performs cleanup in the user's configuration directory

cmd/micro/debug.go

@@ -12,7 +12,7 @@ type NullWriter struct{}
 
 // Write is empty
 func (NullWriter) Write(data []byte) (n int, err error) {
-	return 0, nil
+	return len(data), nil
 }
 
 // InitLog sets up the debug log system for micro if it has been enabled by compile-time variables

cmd/micro/initlua.go

@@ -10,6 +10,7 @@ import (
 	"github.com/zyedidia/micro/v2/internal/buffer"
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/display"
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	ulua "github.com/zyedidia/micro/v2/internal/lua"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/shell"
@@ -34,6 +35,8 @@ func LuaImport(pkg string) *lua.LTable {
 		return luaImportMicroConfig()
 	case "micro/util":
 		return luaImportMicroUtil()
+	case "micro/lsp":
+		return luaImportMicroLsp()
 	default:
 		return ulua.Import(pkg)
 	}
@@ -50,7 +53,9 @@ func luaImportMicro() *lua.LTable {
 	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, "CurTab", luar.New(ulua.L, func() *action.Tab {
+		return action.MainTab()
+	}))
 	ulua.L.SetField(pkg, "Tabs", luar.New(ulua.L, func() *action.TabList {
 		return action.Tabs
 	}))
@@ -118,9 +123,6 @@ func luaImportMicroBuffer() *lua.LTable {
 	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))
@@ -147,10 +149,6 @@ func luaImportMicroUtil() *lua.LTable {
 	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)
@@ -158,3 +156,10 @@ func luaImportMicroUtil() *lua.LTable {
 
 	return pkg
 }
+func luaImportMicroLsp() *lua.LTable {
+	pkg := ulua.L.NewTable()
+
+	ulua.L.SetField(pkg, "GetLanguage", luar.New(ulua.L, lsp.GetLanguage))
+
+	return pkg
+}

cmd/micro/micro.go

@@ -3,14 +3,11 @@ package main
 import (
 	"flag"
 	"fmt"
-	"io"
 	"io/ioutil"
-	"log"
 	"os"
 	"os/signal"
 	"regexp"
 	"runtime"
-	"runtime/pprof"
 	"sort"
 	"strconv"
 	"syscall"
@@ -23,11 +20,12 @@ import (
 	"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/lsp"
 	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"
+	"github.com/zyedidia/tcell"
 )
 
 var (
@@ -39,13 +37,9 @@ var (
 	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
-
-	sigterm chan os.Signal
-	sighup  chan os.Signal
 )
 
 func InitFlags() {
@@ -62,9 +56,6 @@ func InitFlags() {
 		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")
 
@@ -228,27 +219,23 @@ func LoadInput(args []string) []*buffer.Buffer {
 
 func main() {
 	defer func() {
+		lsp.ShutdownAllServers()
+
 		if util.Stdout.Len() > 0 {
 			fmt.Fprint(os.Stdout, util.Stdout.String())
 		}
 		os.Exit(0)
 	}()
 
+	// runtime.SetCPUProfileRate(400)
+	// f, _ := os.Create("micro.prof")
+	// pprof.StartCPUProfile(f)
+	// defer pprof.StopCPUProfile()
+
 	var err error
 
 	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)
@@ -266,6 +253,11 @@ func main() {
 		screen.TermMessage(err)
 	}
 
+	err = lsp.Init()
+	if err != nil {
+		screen.TermMessage(err)
+	}
+
 	// flag options
 	for k, v := range optionFlags {
 		if *v != "" {
@@ -286,6 +278,18 @@ func main() {
 		fmt.Println("Fatal: Micro could not initialize a Screen.")
 		os.Exit(1)
 	}
+
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Kill, syscall.SIGTERM)
+
+	go func() {
+		<-c
+		if screen.Screen != nil {
+			screen.Screen.Fini()
+		}
+		os.Exit(0)
+	}()
+
 	m := clipboard.SetMethod(config.GetGlobalOption("clipboard").(string))
 	clipErr := clipboard.Initialize(m)
 
@@ -294,15 +298,13 @@ func main() {
 			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")
-			}
+			fmt.Println("Micro encountered an error:", err)
 			// backup all open buffers
 			for _, b := range buffer.OpenBuffers {
 				b.Backup()
 			}
+			// Print the stack trace too
+			fmt.Print(errors.Wrap(err, 2).ErrorStack())
 			os.Exit(1)
 		}
 	}()
@@ -325,8 +327,6 @@ func main() {
 		screen.TermMessage(err)
 	}
 
-	action.InitGlobals()
-	buffer.SetMessager(action.InfoBar)
 	args := flag.Args()
 	b := LoadInput(args)
 
@@ -337,6 +337,7 @@ func main() {
 	}
 
 	action.InitTabs(b)
+	action.InitGlobals()
 
 	err = config.RunPluginFn("init")
 	if err != nil {
@@ -349,21 +350,11 @@ func main() {
 	}
 
 	if clipErr != nil {
-		log.Println(clipErr, " or change 'clipboard' option")
-	}
-
-	if a := config.GetGlobalOption("autosave").(float64); a > 0 {
-		config.SetAutoTime(int(a))
-		config.StartAutoSave()
+		action.InfoBar.Error(clipErr, " or change 'clipboard' option")
 	}
 
 	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)
-	signal.Notify(sighup, syscall.SIGHUP)
-
 	// Here is the event loop which runs in a separate thread
 	go func() {
 		for {
@@ -390,6 +381,9 @@ func main() {
 		// time out after 10ms
 	}
 
+	// Since this loop is very slow (waits for user input every time) it's
+	// okay to be inefficient and run it via a function every time
+	// We do this so we can recover from panics without crashing the editor
 	for {
 		DoEvent()
 	}
@@ -399,6 +393,16 @@ func main() {
 func DoEvent() {
 	var event tcell.Event
 
+	// recover from errors without crashing the editor
+	defer func() {
+		if err := recover(); err != nil {
+			if e, ok := err.(*lua.ApiError); ok {
+				screen.TermMessage("Lua API error:", e)
+			} else {
+				screen.TermMessage("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")
+			}
+		}
+	}()
 	// Display everything
 	screen.Screen.Fill(' ', config.DefStyle)
 	screen.Screen.HideCursor()
@@ -409,6 +413,7 @@ func DoEvent() {
 	action.MainTab().Display()
 	action.InfoBar.Display()
 	screen.Screen.Show()
+	action.InfoBar.Message("")
 
 	// Check for new events
 	select {
@@ -429,52 +434,13 @@ func DoEvent() {
 		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

@@ -13,7 +13,7 @@ import (
 	"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"
+	"github.com/zyedidia/tcell"
 )
 
 var tempDir string
@@ -60,6 +60,7 @@ func startup(args []string) (tcell.SimulationScreen, error) {
 			}
 			// Print the stack trace too
 			log.Fatalf(errors.Wrap(err, 2).ErrorStack())
+			os.Exit(1)
 		}
 	}()
 
@@ -170,6 +171,7 @@ func TestMain(m *testing.M) {
 	sim, err = startup([]string{})
 	if err != nil {
 		log.Fatalln(err)
+		os.Exit(1)
 	}
 
 	retval := m.Run()

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

@@ -0,0 +1,23 @@
+<?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

@@ -1,44 +0,0 @@
-<?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>
-				Amicro 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>
-</component>

data/micro.json

@@ -1,358 +0,0 @@
-{
-    "$comment": "https://github.com/zyedidia/micro",
-    "$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

@@ -8,23 +8,27 @@ require (
 	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/robertkrimen/otto v0.0.0-20191219234010-c382bd3c16ff
 	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/clipboard v1.0.3
 	github.com/zyedidia/glob v0.0.0-20170209203856-dd4023a66dc3
+	github.com/zyedidia/highlight v0.0.0-20170330143449-201131ce5cf5
 	github.com/zyedidia/json5 v0.0.0-20200102012142-2da050b1a98d
-	github.com/zyedidia/tcell/v2 v2.0.10-0.20230831153116-061c5b2c7260 // indirect
-	github.com/zyedidia/terminal v0.0.0-20230315200948-4b3bcf6dddef
-	golang.org/x/text v0.3.8
-	gopkg.in/yaml.v2 v2.2.8
+	github.com/zyedidia/pty v2.0.0+incompatible // indirect
+	github.com/zyedidia/tcell v1.4.10
+	github.com/zyedidia/terminal v0.0.0-20180726154117-533c623e2415
+	go.lsp.dev/protocol v0.8.0
+	go.lsp.dev/uri v0.3.0
+	golang.org/x/text v0.3.2
+	gopkg.in/sourcemap.v1 v1.0.5 // indirect
+	gopkg.in/yaml.v2 v2.2.7
 	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 github.com/mattn/go-runewidth => github.com/p-e-w/go-runewidth v0.0.10-0.20200613030200-3e1705c5c059
 
-replace layeh.com/gopher-luar => github.com/layeh/gopher-luar v1.0.7
-
-go 1.16
+go 1.11

go.sum

@@ -1,99 +1,271 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 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/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
+github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
 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/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
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+google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
+google.golang.org/api v0.0.0-20181030000543-1d582fd0359e/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
+google.golang.org/api v0.1.0/go.mod h1:UGEZY7KEX120AnNLIHFMKIo4obdJhkp2tPbaPlQx13Y=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/appengine v1.3.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
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+google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20181029155118-b69ba1387ce2/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20181202183823-bd91e49a0898/go.mod h1:7Ep/1NZk928CDR8SjdVbjWNpdIf6nzjE3BTgJDr2Atg=
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+google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
+google.golang.org/grpc v1.16.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
+google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
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+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
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 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+layeh.com/gopher-luar v1.0.7 h1:53iv6CCkRs5wyofZ+qVXcyAYQOIG52s6pt4xkqZdq7k=
+layeh.com/gopher-luar v1.0.7/go.mod h1:TPnIVCZ2RJBndm7ohXyaqfhzjlZ+OA2SZR/YwL8tECk=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

internal/action/actions.go

@@ -1,10 +1,6 @@
 package action
 
 import (
-	"errors"
-	"fmt"
-	"io/fs"
-	"os"
 	"regexp"
 	"runtime"
 	"strings"
@@ -14,36 +10,32 @@ import (
 	"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"
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	"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"
+	"github.com/zyedidia/tcell"
+	"go.lsp.dev/protocol"
 )
 
 // ScrollUp is not an action
 func (h *BufPane) ScrollUp(n int) {
 	v := h.GetView()
-	v.StartLine = h.Scroll(v.StartLine, -n)
-	h.SetView(v)
+	if v.StartLine >= n {
+		v.StartLine -= n
+		h.SetView(v)
+	} else {
+		v.StartLine = 0
+	}
 }
 
 // ScrollDown is not an action
 func (h *BufPane) ScrollDown(n int) {
 	v := h.GetView()
-	v.StartLine = h.Scroll(v.StartLine, n)
-	h.SetView(v)
-}
-
-// ScrollAdjust can be used to shift the view so that the last line is at the
-// bottom if the user has scrolled past the last line.
-func (h *BufPane) ScrollAdjust() {
-	v := h.GetView()
-	end := h.SLocFromLoc(h.Buf.End())
-	if h.Diff(v.StartLine, end) < h.BufView().Height-1 {
-		v.StartLine = h.Scroll(end, -h.BufView().Height+1)
+	if v.StartLine <= h.Buf.LinesNum()-1-n {
+		v.StartLine += n
+		h.SetView(v)
 	}
-	h.SetView(v)
 }
 
 // MousePress is the event that should happen when a normal click happens
@@ -121,55 +113,22 @@ func (h *BufPane) ScrollDownAction() bool {
 // Center centers the view on the cursor
 func (h *BufPane) Center() bool {
 	v := h.GetView()
-	v.StartLine = h.Scroll(h.SLocFromLoc(h.Cursor.Loc), -h.BufView().Height/2)
+	v.StartLine = h.Cursor.Y - v.Height/2
+	if v.StartLine+v.Height > h.Buf.LinesNum() {
+		v.StartLine = h.Buf.LinesNum() - v.Height
+	}
+	if v.StartLine < 0 {
+		v.StartLine = 0
+	}
 	h.SetView(v)
-	h.ScrollAdjust()
+	h.Relocate()
 	return true
 }
 
-// MoveCursorUp is not an action
-func (h *BufPane) MoveCursorUp(n int) {
-	if !h.Buf.Settings["softwrap"].(bool) {
-		h.Cursor.UpN(n)
-	} else {
-		vloc := h.VLocFromLoc(h.Cursor.Loc)
-		sloc := h.Scroll(vloc.SLoc, -n)
-		if sloc == vloc.SLoc {
-			// we are at the beginning of buffer
-			h.Cursor.Loc = h.Buf.Start()
-			h.Cursor.LastVisualX = 0
-		} else {
-			vloc.SLoc = sloc
-			vloc.VisualX = h.Cursor.LastVisualX
-			h.Cursor.Loc = h.LocFromVLoc(vloc)
-		}
-	}
-}
-
-// MoveCursorDown is not an action
-func (h *BufPane) MoveCursorDown(n int) {
-	if !h.Buf.Settings["softwrap"].(bool) {
-		h.Cursor.DownN(n)
-	} else {
-		vloc := h.VLocFromLoc(h.Cursor.Loc)
-		sloc := h.Scroll(vloc.SLoc, n)
-		if sloc == vloc.SLoc {
-			// we are at the end of buffer
-			h.Cursor.Loc = h.Buf.End()
-			vloc = h.VLocFromLoc(h.Cursor.Loc)
-			h.Cursor.LastVisualX = vloc.VisualX
-		} else {
-			vloc.SLoc = sloc
-			vloc.VisualX = h.Cursor.LastVisualX
-			h.Cursor.Loc = h.LocFromVLoc(vloc)
-		}
-	}
-}
-
 // CursorUp moves the cursor up
 func (h *BufPane) CursorUp() bool {
 	h.Cursor.Deselect(true)
-	h.MoveCursorUp(1)
+	h.Cursor.Up()
 	h.Relocate()
 	return true
 }
@@ -177,7 +136,7 @@ func (h *BufPane) CursorUp() bool {
 // CursorDown moves the cursor down
 func (h *BufPane) CursorDown() bool {
 	h.Cursor.Deselect(true)
-	h.MoveCursorDown(1)
+	h.Cursor.Down()
 	h.Relocate()
 	return true
 }
@@ -255,7 +214,7 @@ func (h *BufPane) SelectUp() bool {
 	if !h.Cursor.HasSelection() {
 		h.Cursor.OrigSelection[0] = h.Cursor.Loc
 	}
-	h.MoveCursorUp(1)
+	h.Cursor.Up()
 	h.Cursor.SelectTo(h.Cursor.Loc)
 	h.Relocate()
 	return true
@@ -266,7 +225,7 @@ func (h *BufPane) SelectDown() bool {
 	if !h.Cursor.HasSelection() {
 		h.Cursor.OrigSelection[0] = h.Cursor.Loc
 	}
-	h.MoveCursorDown(1)
+	h.Cursor.Down()
 	h.Cursor.SelectTo(h.Cursor.Loc)
 	h.Relocate()
 	return true
@@ -707,6 +666,13 @@ func (h *BufPane) Autocomplete() bool {
 		return false
 	}
 
+	// if there is an existing completion, always cycle it
+	if b.HasSuggestions {
+		h.cycleAutocomplete(true)
+		return true
+	}
+
+	// don't start a new completion unless the correct conditions are met
 	if h.Cursor.X == 0 {
 		return false
 	}
@@ -716,12 +682,14 @@ func (h *BufPane) Autocomplete() bool {
 		// don't autocomplete if cursor is on alpha numeric character (middle of a word)
 		return false
 	}
-
-	if b.HasSuggestions {
-		b.CycleAutocomplete(true)
-		return true
+	ret := true
+	if !b.Autocomplete(buffer.LSPComplete) {
+		ret = b.Autocomplete(buffer.BufferComplete)
 	}
-	return b.Autocomplete(buffer.BufferComplete)
+	if ret {
+		h.displayCompletionDoc()
+	}
+	return true
 }
 
 // CycleAutocompleteBack cycles back in the autocomplete suggestion list
@@ -731,12 +699,24 @@ func (h *BufPane) CycleAutocompleteBack() bool {
 	}
 
 	if h.Buf.HasSuggestions {
-		h.Buf.CycleAutocomplete(false)
+		h.cycleAutocomplete(false)
 		return true
 	}
 	return false
 }
 
+func (h *BufPane) cycleAutocomplete(forward bool) {
+	h.Buf.CycleAutocomplete(forward)
+	h.displayCompletionDoc()
+}
+
+func (h *BufPane) displayCompletionDoc() {
+	c := h.Buf.CurCompletion
+	if c >= 0 && c < len(h.Buf.Completions) {
+		InfoBar.Message(h.Buf.Completions[c].Doc)
+	}
+}
+
 // InsertTab inserts a tab or spaces
 func (h *BufPane) InsertTab() bool {
 	b := h.Buf
@@ -791,27 +771,10 @@ func (h *BufPane) SaveAsCB(action string, callback func()) bool {
 				return
 			}
 			filename := strings.Join(args, " ")
-			fileinfo, err := os.Stat(filename)
-			if err != nil {
-				if os.IsNotExist(err) {
-					noPrompt := h.saveBufToFile(filename, action, callback)
-					if noPrompt {
-						h.completeAction(action)
-						return
-					}
-				}
+			noPrompt := h.saveBufToFile(filename, action, callback)
+			if noPrompt {
+				h.completeAction(action)
 			}
-			InfoBar.YNPrompt(
-				fmt.Sprintf("the file %s already exists in the directory, would you like to overwrite? Y/n", fileinfo.Name()),
-				func(yes, canceled bool) {
-					if yes && !canceled {
-						noPrompt := h.saveBufToFile(filename, action, callback)
-						if noPrompt {
-							h.completeAction(action)
-						}
-					}
-				},
-			)
 		}
 	})
 	return false
@@ -828,7 +791,7 @@ func (h *BufPane) SaveAs() bool {
 func (h *BufPane) saveBufToFile(filename string, action string, callback func()) bool {
 	err := h.Buf.SaveAs(filename)
 	if err != nil {
-		if errors.Is(err, fs.ErrPermission) {
+		if strings.HasSuffix(err.Error(), "permission denied") {
 			saveWithSudo := func() {
 				err = h.Buf.SaveAsWithSudo(filename)
 				if err != nil {
@@ -845,15 +808,12 @@ func (h *BufPane) saveBufToFile(filename string, action string, callback func())
 			if h.Buf.Settings["autosu"].(bool) {
 				saveWithSudo()
 			} else {
-				InfoBar.YNPrompt(
-					fmt.Sprintf("Permission denied. Do you want to save this file using %s? (y,n)", config.GlobalSettings["sucmd"].(string)),
-					func(yes, canceled bool) {
-						if yes && !canceled {
-							saveWithSudo()
-							h.completeAction(action)
-						}
-					},
-				)
+				InfoBar.YNPrompt("Permission denied. Do you want to save this file using sudo? (y,n)", func(yes, canceled bool) {
+					if yes && !canceled {
+						saveWithSudo()
+						h.completeAction(action)
+					}
+				})
 				return false
 			}
 		} else {
@@ -882,10 +842,8 @@ func (h *BufPane) FindLiteral() bool {
 
 // Search searches for a given string/regex in the buffer and selects the next
 // match if a match is found
-// This function behaves the same way as Find and FindLiteral actions:
-// it affects the buffer's LastSearch and LastSearchRegex (saved searches)
-// for use with FindNext and FindPrevious, and turns HighlightSearch on or off
-// according to hlsearch setting
+// This function affects lastSearch and lastSearchRegex (saved searches) for
+// use with FindNext and FindPrevious
 func (h *BufPane) Search(str string, useRegex bool, searchDown bool) error {
 	match, found, err := h.Buf.FindNext(str, h.Buf.Start(), h.Buf.End(), h.Cursor.Loc, searchDown, useRegex)
 	if err != nil {
@@ -896,10 +854,10 @@ func (h *BufPane) Search(str string, useRegex bool, searchDown bool) error {
 		h.Cursor.SetSelectionEnd(match[1])
 		h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
 		h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
-		h.GotoLoc(h.Cursor.CurSelection[1])
-		h.Buf.LastSearch = str
-		h.Buf.LastSearchRegex = useRegex
-		h.Buf.HighlightSearch = h.Buf.Settings["hlsearch"].(bool)
+		h.Cursor.GotoLoc(h.Cursor.CurSelection[1])
+		h.lastSearch = str
+		h.lastSearchRegex = useRegex
+		h.Relocate()
 	} else {
 		h.Cursor.ResetSelection()
 	}
@@ -912,23 +870,21 @@ func (h *BufPane) find(useRegex bool) bool {
 	if useRegex {
 		prompt = "Find (regex): "
 	}
-	var eventCallback func(resp string)
-	if h.Buf.Settings["incsearch"].(bool) {
-		eventCallback = func(resp string) {
-			match, found, _ := h.Buf.FindNext(resp, h.Buf.Start(), h.Buf.End(), h.searchOrig, true, useRegex)
-			if found {
-				h.Cursor.SetSelectionStart(match[0])
-				h.Cursor.SetSelectionEnd(match[1])
-				h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
-				h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
-				h.GotoLoc(match[1])
-			} else {
-				h.GotoLoc(h.searchOrig)
-				h.Cursor.ResetSelection()
-			}
+	InfoBar.Prompt(prompt, "", "Find", func(resp string) {
+		// Event callback
+		match, found, _ := h.Buf.FindNext(resp, h.Buf.Start(), h.Buf.End(), h.searchOrig, true, useRegex)
+		if found {
+			h.Cursor.SetSelectionStart(match[0])
+			h.Cursor.SetSelectionEnd(match[1])
+			h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
+			h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
+			h.Cursor.GotoLoc(match[1])
+		} else {
+			h.Cursor.GotoLoc(h.searchOrig)
+			h.Cursor.ResetSelection()
 		}
-	}
-	findCallback := func(resp string, canceled bool) {
+		h.Relocate()
+	}, func(resp string, canceled bool) {
 		// Finished callback
 		if !canceled {
 			match, found, err := h.Buf.FindNext(resp, h.Buf.Start(), h.Buf.End(), h.searchOrig, true, useRegex)
@@ -940,10 +896,9 @@ func (h *BufPane) find(useRegex bool) bool {
 				h.Cursor.SetSelectionEnd(match[1])
 				h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
 				h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
-				h.GotoLoc(h.Cursor.CurSelection[1])
-				h.Buf.LastSearch = resp
-				h.Buf.LastSearchRegex = useRegex
-				h.Buf.HighlightSearch = h.Buf.Settings["hlsearch"].(bool)
+				h.Cursor.GotoLoc(h.Cursor.CurSelection[1])
+				h.lastSearch = resp
+				h.lastSearchRegex = useRegex
 			} else {
 				h.Cursor.ResetSelection()
 				InfoBar.Message("No matches found")
@@ -951,27 +906,9 @@ func (h *BufPane) find(useRegex bool) bool {
 		} else {
 			h.Cursor.ResetSelection()
 		}
-	}
-	pattern := string(h.Cursor.GetSelection())
-	if eventCallback != nil && pattern != "" {
-		eventCallback(pattern)
-	}
-	InfoBar.Prompt(prompt, pattern, "Find", eventCallback, findCallback)
-	if pattern != "" {
-		InfoBar.SelectAll()
-	}
-	return true
-}
+		h.Relocate()
+	})
 
-// ToggleHighlightSearch toggles highlighting all instances of the last used search term
-func (h *BufPane) ToggleHighlightSearch() bool {
-	h.Buf.HighlightSearch = !h.Buf.HighlightSearch
-	return true
-}
-
-// UnhighlightSearch unhighlights all instances of the last used search term
-func (h *BufPane) UnhighlightSearch() bool {
-	h.Buf.HighlightSearch = false
 	return true
 }
 
@@ -985,7 +922,7 @@ func (h *BufPane) FindNext() bool {
 	if h.Cursor.HasSelection() {
 		searchLoc = h.Cursor.CurSelection[1]
 	}
-	match, found, err := h.Buf.FindNext(h.Buf.LastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, true, h.Buf.LastSearchRegex)
+	match, found, err := h.Buf.FindNext(h.lastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, true, h.lastSearchRegex)
 	if err != nil {
 		InfoBar.Error(err)
 	}
@@ -994,10 +931,11 @@ func (h *BufPane) FindNext() bool {
 		h.Cursor.SetSelectionEnd(match[1])
 		h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
 		h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
-		h.GotoLoc(h.Cursor.CurSelection[1])
+		h.Cursor.Loc = h.Cursor.CurSelection[1]
 	} else {
 		h.Cursor.ResetSelection()
 	}
+	h.Relocate()
 	return true
 }
 
@@ -1011,7 +949,7 @@ func (h *BufPane) FindPrevious() bool {
 	if h.Cursor.HasSelection() {
 		searchLoc = h.Cursor.CurSelection[0]
 	}
-	match, found, err := h.Buf.FindNext(h.Buf.LastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, false, h.Buf.LastSearchRegex)
+	match, found, err := h.Buf.FindNext(h.lastSearch, h.Buf.Start(), h.Buf.End(), searchLoc, false, h.lastSearchRegex)
 	if err != nil {
 		InfoBar.Error(err)
 	}
@@ -1020,32 +958,11 @@ func (h *BufPane) FindPrevious() bool {
 		h.Cursor.SetSelectionEnd(match[1])
 		h.Cursor.OrigSelection[0] = h.Cursor.CurSelection[0]
 		h.Cursor.OrigSelection[1] = h.Cursor.CurSelection[1]
-		h.GotoLoc(h.Cursor.CurSelection[1])
+		h.Cursor.Loc = h.Cursor.CurSelection[1]
 	} else {
 		h.Cursor.ResetSelection()
 	}
-	return true
-}
-
-// DiffNext searches forward until the beginning of the next block of diffs
-func (h *BufPane) DiffNext() bool {
-	cur := h.Cursor.Loc.Y
-	dl, err := h.Buf.FindNextDiffLine(cur, true)
-	if err != nil {
-		return false
-	}
-	h.GotoLoc(buffer.Loc{0, dl})
-	return true
-}
-
-// DiffPrevious searches forward until the end of the previous block of diffs
-func (h *BufPane) DiffPrevious() bool {
-	cur := h.Cursor.Loc.Y
-	dl, err := h.Buf.FindNextDiffLine(cur, false)
-	if err != nil {
-		return false
-	}
-	h.GotoLoc(buffer.Loc{0, dl})
+	h.Relocate()
 	return true
 }
 
@@ -1076,19 +993,17 @@ func (h *BufPane) Copy() bool {
 	return true
 }
 
-// CopyLine copies the current line to the clipboard
+// Copy the current line to the clipboard
 func (h *BufPane) CopyLine() bool {
 	if h.Cursor.HasSelection() {
 		return false
+	} else {
+		h.Cursor.SelectLine()
+		h.Cursor.CopySelection(clipboard.ClipboardReg)
+		h.freshClip = true
+		InfoBar.Message("Copied line")
 	}
-	origLoc := h.Cursor.Loc
-	h.Cursor.SelectLine()
-	h.Cursor.CopySelection(clipboard.ClipboardReg)
-	h.freshClip = true
-	InfoBar.Message("Copied line")
-
 	h.Cursor.Deselect(true)
-	h.Cursor.Loc = origLoc
 	h.Relocate()
 	return true
 }
@@ -1099,7 +1014,7 @@ func (h *BufPane) CutLine() bool {
 	if !h.Cursor.HasSelection() {
 		return false
 	}
-	if h.freshClip {
+	if h.freshClip == true {
 		if h.Cursor.HasSelection() {
 			if clip, err := clipboard.Read(clipboard.ClipboardReg); err != nil {
 				InfoBar.Error(err)
@@ -1107,7 +1022,7 @@ func (h *BufPane) CutLine() bool {
 				clipboard.WriteMulti(clip+string(h.Cursor.GetSelection()), clipboard.ClipboardReg, h.Cursor.Num, h.Buf.NumCursors())
 			}
 		}
-	} else if time.Since(h.lastCutTime)/time.Second > 10*time.Second || !h.freshClip {
+	} else if time.Since(h.lastCutTime)/time.Second > 10*time.Second || h.freshClip == false {
 		h.Copy()
 	}
 	h.freshClip = true
@@ -1130,15 +1045,14 @@ func (h *BufPane) Cut() bool {
 
 		h.Relocate()
 		return true
+	} else {
+		return h.CutLine()
 	}
-	return h.CutLine()
 }
 
 // DuplicateLine duplicates the current line or selection
 func (h *BufPane) DuplicateLine() bool {
-	var infoMessage = "Duplicated line"
 	if h.Cursor.HasSelection() {
-		infoMessage = "Duplicated selection"
 		h.Buf.Insert(h.Cursor.CurSelection[1], string(h.Cursor.GetSelection()))
 	} else {
 		h.Cursor.End()
@@ -1146,7 +1060,7 @@ func (h *BufPane) DuplicateLine() bool {
 		// h.Cursor.Right()
 	}
 
-	InfoBar.Message(infoMessage)
+	InfoBar.Message("Duplicated line")
 	h.Relocate()
 	return true
 }
@@ -1275,7 +1189,7 @@ func (h *BufPane) paste(clip string) {
 	if h.Buf.Settings["smartpaste"].(bool) {
 		if h.Cursor.X > 0 && len(util.GetLeadingWhitespace([]byte(strings.TrimLeft(clip, "\r\n")))) == 0 {
 			leadingWS := util.GetLeadingWhitespace(h.Buf.LineBytes(h.Cursor.Y))
-			clip = strings.ReplaceAll(clip, "\n", "\n"+string(leadingWS))
+			clip = strings.Replace(clip, "\n", "\n"+string(leadingWS), -1)
 		}
 	}
 
@@ -1304,12 +1218,14 @@ func (h *BufPane) JumpToMatchingBrace() bool {
 				} else {
 					h.Cursor.GotoLoc(matchingBrace.Move(1, h.Buf))
 				}
-				h.Relocate()
-				return true
+			} else {
+				return false
 			}
 		}
 	}
-	return false
+
+	h.Relocate()
+	return true
 }
 
 // SelectAll selects the entire buffer
@@ -1333,7 +1249,7 @@ func (h *BufPane) OpenFile() bool {
 	return true
 }
 
-// JumpLine asks the user to enter a line number to jump to
+// OpenFile opens a new file in the buffer
 func (h *BufPane) JumpLine() bool {
 	InfoBar.Prompt("> ", "goto ", "Command", nil, func(resp string, canceled bool) {
 		if !canceled {
@@ -1346,29 +1262,45 @@ func (h *BufPane) JumpLine() bool {
 // Start moves the viewport to the start of the buffer
 func (h *BufPane) Start() bool {
 	v := h.GetView()
-	v.StartLine = display.SLoc{0, 0}
+	v.StartLine = 0
 	h.SetView(v)
 	return true
 }
 
 // End moves the viewport to the end of the buffer
 func (h *BufPane) End() bool {
+	// TODO: softwrap problems?
 	v := h.GetView()
-	v.StartLine = h.Scroll(h.SLocFromLoc(h.Buf.End()), -h.BufView().Height+1)
-	h.SetView(v)
+	if v.Height > h.Buf.LinesNum() {
+		v.StartLine = 0
+		h.SetView(v)
+	} else {
+		v.StartLine = h.Buf.LinesNum() - v.Height
+		h.SetView(v)
+	}
 	return true
 }
 
 // PageUp scrolls the view up a page
 func (h *BufPane) PageUp() bool {
-	h.ScrollUp(h.BufView().Height)
+	v := h.GetView()
+	if v.StartLine > v.Height {
+		h.ScrollUp(v.Height)
+	} else {
+		v.StartLine = 0
+	}
+	h.SetView(v)
 	return true
 }
 
 // PageDown scrolls the view down a page
 func (h *BufPane) PageDown() bool {
-	h.ScrollDown(h.BufView().Height)
-	h.ScrollAdjust()
+	v := h.GetView()
+	if h.Buf.LinesNum()-(v.StartLine+v.Height) > v.Height {
+		h.ScrollDown(v.Height)
+	} else if h.Buf.LinesNum() >= v.Height {
+		v.StartLine = h.Buf.LinesNum() - v.Height
+	}
 	return true
 }
 
@@ -1377,7 +1309,7 @@ func (h *BufPane) SelectPageUp() bool {
 	if !h.Cursor.HasSelection() {
 		h.Cursor.OrigSelection[0] = h.Cursor.Loc
 	}
-	h.MoveCursorUp(h.BufView().Height)
+	h.Cursor.UpN(h.GetView().Height)
 	h.Cursor.SelectTo(h.Cursor.Loc)
 	h.Relocate()
 	return true
@@ -1388,7 +1320,7 @@ func (h *BufPane) SelectPageDown() bool {
 	if !h.Cursor.HasSelection() {
 		h.Cursor.OrigSelection[0] = h.Cursor.Loc
 	}
-	h.MoveCursorDown(h.BufView().Height)
+	h.Cursor.DownN(h.GetView().Height)
 	h.Cursor.SelectTo(h.Cursor.Loc)
 	h.Relocate()
 	return true
@@ -1403,7 +1335,7 @@ func (h *BufPane) CursorPageUp() bool {
 		h.Cursor.ResetSelection()
 		h.Cursor.StoreVisualX()
 	}
-	h.MoveCursorUp(h.BufView().Height)
+	h.Cursor.UpN(h.GetView().Height)
 	h.Relocate()
 	return true
 }
@@ -1417,21 +1349,34 @@ func (h *BufPane) CursorPageDown() bool {
 		h.Cursor.ResetSelection()
 		h.Cursor.StoreVisualX()
 	}
-	h.MoveCursorDown(h.BufView().Height)
+	h.Cursor.DownN(h.GetView().Height)
 	h.Relocate()
 	return true
 }
 
 // HalfPageUp scrolls the view up half a page
 func (h *BufPane) HalfPageUp() bool {
-	h.ScrollUp(h.BufView().Height / 2)
+	v := h.GetView()
+	if v.StartLine > v.Height/2 {
+		h.ScrollUp(v.Height / 2)
+	} else {
+		v.StartLine = 0
+	}
+	h.SetView(v)
 	return true
 }
 
 // HalfPageDown scrolls the view down half a page
 func (h *BufPane) HalfPageDown() bool {
-	h.ScrollDown(h.BufView().Height / 2)
-	h.ScrollAdjust()
+	v := h.GetView()
+	if h.Buf.LinesNum()-(v.StartLine+v.Height) > v.Height/2 {
+		h.ScrollDown(v.Height / 2)
+	} else {
+		if h.Buf.LinesNum() >= v.Height {
+			v.StartLine = h.Buf.LinesNum() - v.Height
+		}
+	}
+	h.SetView(v)
 	return true
 }
 
@@ -1530,43 +1475,39 @@ func (h *BufPane) ClearInfo() bool {
 	return true
 }
 
-// ForceQuit closes the current tab or view even if there are unsaved changes
-// (no prompt)
-func (h *BufPane) ForceQuit() bool {
-	h.Buf.Close()
-	if len(MainTab().Panes) > 1 {
-		h.Unsplit()
-	} else if len(Tabs.List) > 1 {
-		Tabs.RemoveTab(h.splitID)
-	} else {
-		screen.Screen.Fini()
-		InfoBar.Close()
-		runtime.Goexit()
-	}
-	return true
-}
-
 // Quit this will close the current tab or view that is open
 func (h *BufPane) Quit() bool {
+	quit := func() {
+		h.Buf.Close()
+		if len(MainTab().Panes) > 1 {
+			h.Unsplit()
+		} else if len(Tabs.List) > 1 {
+			Tabs.RemoveTab(h.splitID)
+		} else {
+			screen.Screen.Fini()
+			InfoBar.Close()
+			runtime.Goexit()
+		}
+	}
 	if h.Buf.Modified() {
 		if config.GlobalSettings["autosave"].(float64) > 0 {
 			// autosave on means we automatically save when quitting
 			h.SaveCB("Quit", func() {
-				h.ForceQuit()
+				quit()
 			})
 		} else {
 			InfoBar.YNPrompt("Save changes to "+h.Buf.GetName()+" before closing? (y,n,esc)", func(yes, canceled bool) {
 				if !canceled && !yes {
-					h.ForceQuit()
+					quit()
 				} else if !canceled && yes {
 					h.SaveCB("Quit", func() {
-						h.ForceQuit()
+						quit()
 					})
 				}
 			})
 		}
 	} else {
-		h.ForceQuit()
+		quit()
 	}
 	return true
 }
@@ -1582,7 +1523,9 @@ func (h *BufPane) QuitAll() bool {
 	}
 
 	quit := func() {
-		buffer.CloseOpenBuffers()
+		for _, b := range buffer.OpenBuffers {
+			b.Close()
+		}
 		screen.Screen.Fini()
 		InfoBar.Close()
 		runtime.Goexit()
@@ -1687,12 +1630,12 @@ func (h *BufPane) PreviousSplit() bool {
 }
 
 var curmacro []interface{}
-var recordingMacro bool
+var recording_macro bool
 
 // ToggleMacro toggles recording of a macro
 func (h *BufPane) ToggleMacro() bool {
-	recordingMacro = !recordingMacro
-	if recordingMacro {
+	recording_macro = !recording_macro
+	if recording_macro {
 		curmacro = []interface{}{}
 		InfoBar.Message("Recording")
 	} else {
@@ -1704,7 +1647,7 @@ func (h *BufPane) ToggleMacro() bool {
 
 // PlayMacro plays back the most recently recorded macro
 func (h *BufPane) PlayMacro() bool {
-	if recordingMacro {
+	if recording_macro {
 		return false
 	}
 	for _, action := range curmacro {
@@ -1764,9 +1707,10 @@ func (h *BufPane) SpawnMultiCursor() bool {
 func (h *BufPane) SpawnMultiCursorUp() bool {
 	if h.Cursor.Y == 0 {
 		return false
+	} else {
+		h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y - 1})
+		h.Cursor.Relocate()
 	}
-	h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y - 1})
-	h.Cursor.Relocate()
 
 	c := buffer.NewCursor(h.Buf, buffer.Loc{h.Cursor.X, h.Cursor.Y + 1})
 	h.Buf.AddCursor(c)
@@ -1781,9 +1725,10 @@ func (h *BufPane) SpawnMultiCursorUp() bool {
 func (h *BufPane) SpawnMultiCursorDown() bool {
 	if h.Cursor.Y+1 == h.Buf.LinesNum() {
 		return false
+	} else {
+		h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y + 1})
+		h.Cursor.Relocate()
 	}
-	h.Cursor.GotoLoc(buffer.Loc{h.Cursor.X, h.Cursor.Y + 1})
-	h.Cursor.Relocate()
 
 	c := buffer.NewCursor(h.Buf, buffer.Loc{h.Cursor.X, h.Cursor.Y - 1})
 	h.Buf.AddCursor(c)
@@ -1892,6 +1837,52 @@ func (h *BufPane) RemoveAllMultiCursors() bool {
 	return true
 }
 
+// SemanticInfo returns information about the identifier the cursor is on and
+// displays the information in the infobar
+// The information is fetched using the LSP server (must be enabled)
+func (h *BufPane) SemanticInfo() bool {
+	info, err := h.Buf.Server.Hover(h.Buf.AbsPath, lsp.Position(h.Cursor.X, h.Cursor.Y))
+
+	if err != nil {
+		InfoBar.Error(err)
+		return false
+	}
+
+	info = strings.Split(info, "\n")[0]
+
+	InfoBar.Message(info)
+	return true
+}
+
+// AutoFormat automatically formats the document using LSP
+func (h *BufPane) AutoFormat() bool {
+	var err error
+	var edits []protocol.TextEdit
+
+	if h.Cursor.HasSelection() {
+		edits, err = h.Buf.Server.DocumentRangeFormat(h.Buf.AbsPath, protocol.Range{
+			Start: lsp.Position(h.Cursor.CurSelection[0].X, h.Cursor.CurSelection[0].Y),
+			End:   lsp.Position(h.Cursor.CurSelection[1].X, h.Cursor.CurSelection[1].Y),
+		}, protocol.FormattingOptions{
+			InsertSpaces: h.Buf.Settings["tabstospaces"].(bool),
+			TabSize:      h.Buf.Settings["tabsize"].(float64),
+		})
+	} else {
+		edits, err = h.Buf.Server.DocumentFormat(h.Buf.AbsPath, protocol.FormattingOptions{
+			InsertSpaces: h.Buf.Settings["tabstospaces"].(bool),
+			TabSize:      h.Buf.Settings["tabsize"].(float64),
+		})
+	}
+
+	if err != nil {
+		InfoBar.Error(err)
+		return false
+	}
+
+	h.Buf.ApplyEdits(edits)
+	return true
+}
+
 // None is an action that does nothing
 func (h *BufPane) None() bool {
 	return true

internal/action/bindings.go

@@ -3,7 +3,6 @@ package action
 import (
 	"encoding/json"
 	"errors"
-	"fmt"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -14,11 +13,11 @@ import (
 	"github.com/zyedidia/json5"
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/screen"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 var Binder = map[string]func(e Event, action string){
-	"command":  InfoMapEvent,
+	"info":     InfoMapEvent,
 	"buffer":   BufMapEvent,
 	"terminal": TermMapEvent,
 }
@@ -62,11 +61,7 @@ func InitBindings() {
 		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
-			}
+			bind := Binder[k]
 			for e, a := range val {
 				s, ok := a.(string)
 				if !ok {
@@ -88,6 +83,8 @@ func BindKey(k, v string, bind func(e Event, a string)) {
 		return
 	}
 
+	config.Bindings[event.Name()] = v
+
 	bind(event, v)
 
 	// switch e := event.(type) {
@@ -139,7 +136,7 @@ func findSingleEvent(k string) (b Event, ok bool) {
 modSearch:
 	for {
 		switch {
-		case strings.HasPrefix(k, "-") && k != "-":
+		case strings.HasPrefix(k, "-"):
 			// We optionally support dashes between modifiers
 			k = k[1:]
 		case strings.HasPrefix(k, "Ctrl") && k != "CtrlH":
@@ -162,7 +159,7 @@ modSearch:
 		}
 	}
 
-	if k == "" {
+	if len(k) == 0 {
 		return KeyEvent{}, false
 	}
 
@@ -243,7 +240,7 @@ func findEvent(k string) (Event, error) {
 // 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{}
+	var parsed map[string]string
 
 	filename := filepath.Join(config.ConfigDir, "bindings.json")
 	createBindingsIfNotExist(filename)
@@ -293,7 +290,7 @@ func TryBindKey(k, v string, overwrite bool) (bool, error) {
 // 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{}
+	var parsed map[string]string
 
 	filename := filepath.Join(config.ConfigDir, "bindings.json")
 	createBindingsIfNotExist(filename)
@@ -325,9 +322,9 @@ func UnbindKey(k string) error {
 		defaults := DefaultBindings("buffer")
 		if a, ok := defaults[k]; ok {
 			BindKey(k, a, Binder["buffer"])
-		} else if _, ok := config.Bindings["buffer"][k]; ok {
+		} else if _, ok := config.Bindings[k]; ok {
 			BufUnmap(key)
-			delete(config.Bindings["buffer"], k)
+			delete(config.Bindings, k)
 		}
 
 		txt, _ := json.MarshalIndent(parsed, "", "    ")
@@ -337,9 +334,9 @@ func UnbindKey(k string) error {
 }
 
 var mouseEvents = map[string]tcell.ButtonMask{
-	"MouseLeft":       tcell.ButtonPrimary,
-	"MouseMiddle":     tcell.ButtonMiddle,
-	"MouseRight":      tcell.ButtonSecondary,
+	"MouseLeft":       tcell.Button1,
+	"MouseMiddle":     tcell.Button2,
+	"MouseRight":      tcell.Button3,
 	"MouseWheelUp":    tcell.WheelUp,
 	"MouseWheelDown":  tcell.WheelDown,
 	"MouseWheelLeft":  tcell.WheelLeft,

internal/action/bufpane.go

@@ -13,27 +13,20 @@ import (
 	"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"
+	"github.com/zyedidia/tcell"
 )
 
-// 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)
@@ -44,7 +37,6 @@ 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 {
@@ -70,8 +62,6 @@ func LuaAction(fn string) func(*BufPane) bool {
 
 // 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)
@@ -227,6 +217,9 @@ type BufPane struct {
 	// Same here, just to keep track for mouse move events
 	tripleClick bool
 
+	// Last search stores the last successful search for FindNext and FindPrev
+	lastSearch      string
+	lastSearchRegex bool
 	// Should the current multiple cursor selection search based on word or
 	// based on selection (false for selection, true for word)
 	multiWord bool
@@ -236,14 +229,9 @@ type BufPane struct {
 
 	// 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 {
+func NewBufPane(buf *buffer.Buffer, win display.BWindow, tab *Tab) *BufPane {
 	h := new(BufPane)
 	h.Buf = buf
 	h.BWindow = win
@@ -252,47 +240,20 @@ func newBufPane(buf *buffer.Buffer, win display.BWindow, tab *Tab) *BufPane {
 	h.Cursor = h.Buf.GetActiveCursor()
 	h.mouseReleased = true
 
+	config.RunPluginFn("onBufPaneOpen", luar.New(ulua.L, h))
+
 	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
+	return NewBufPane(buf, w, tab)
 }
 
-// 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
 }
@@ -303,90 +264,51 @@ func (h *BufPane) ResizePane(size int) {
 	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
+// 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))
+	b, err := config.RunPluginFnBool(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
+// 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)))
+	b, err := config.RunPluginFnBool(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.Relocate()
+	// 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
+	// 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() {
@@ -423,7 +345,7 @@ func (h *BufPane) HandleEvent(event tcell.Event) {
 	case *tcell.EventKey:
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  metaToAlt(e.Modifiers()),
+			mod:  e.Modifiers(),
 			r:    e.Rune(),
 		}
 
@@ -473,7 +395,7 @@ func (h *BufPane) HandleEvent(event tcell.Event) {
 		if !cancel {
 			me := MouseEvent{
 				btn: e.Buttons(),
-				mod: metaToAlt(e.Modifiers()),
+				mod: e.Modifiers(),
 			}
 			h.DoMouseEvent(me, e)
 		}
@@ -497,7 +419,6 @@ func (h *BufPane) HandleEvent(event tcell.Event) {
 	}
 }
 
-// Bindings returns the current bindings tree for this buffer.
 func (h *BufPane) Bindings() *KeyTree {
 	if h.bindings != nil {
 		return h.bindings
@@ -532,7 +453,7 @@ func (h *BufPane) execAction(action func(*BufPane) bool, name string, cursor int
 			success = success && h.PluginCB("on"+name)
 
 			if isMulti {
-				if recordingMacro {
+				if recording_macro {
 					if name != "ToggleMacro" && name != "PlayMacro" {
 						curmacro = append(curmacro, action)
 					}
@@ -604,7 +525,7 @@ func (h *BufPane) DoRuneInsert(r rune) {
 		} else {
 			h.Buf.Insert(c.Loc, string(r))
 		}
-		if recordingMacro {
+		if recording_macro {
 			curmacro = append(curmacro, r)
 		}
 		h.Relocate()
@@ -612,7 +533,6 @@ func (h *BufPane) DoRuneInsert(r rune) {
 	}
 }
 
-// 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)
@@ -621,8 +541,6 @@ func (h *BufPane) VSplitIndex(buf *buffer.Buffer, right bool) *BufPane {
 	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)
@@ -632,22 +550,16 @@ func (h *BufPane) HSplitIndex(buf *buffer.Buffer, bottom bool) *BufPane {
 	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 {
@@ -708,8 +620,6 @@ var BufKeyActions = map[string]BufKeyAction{
 	"FindLiteral":               (*BufPane).FindLiteral,
 	"FindNext":                  (*BufPane).FindNext,
 	"FindPrevious":              (*BufPane).FindPrevious,
-	"DiffNext":                  (*BufPane).DiffNext,
-	"DiffPrevious":              (*BufPane).DiffPrevious,
 	"Center":                    (*BufPane).Center,
 	"Undo":                      (*BufPane).Undo,
 	"Redo":                      (*BufPane).Redo,
@@ -747,8 +657,6 @@ var BufKeyActions = map[string]BufKeyAction{
 	"ToggleKeyMenu":             (*BufPane).ToggleKeyMenu,
 	"ToggleDiffGutter":          (*BufPane).ToggleDiffGutter,
 	"ToggleRuler":               (*BufPane).ToggleRuler,
-	"ToggleHighlightSearch":     (*BufPane).ToggleHighlightSearch,
-	"UnhighlightSearch":         (*BufPane).UnhighlightSearch,
 	"ClearStatus":               (*BufPane).ClearStatus,
 	"ShellMode":                 (*BufPane).ShellMode,
 	"CommandMode":               (*BufPane).CommandMode,
@@ -756,7 +664,6 @@ var BufKeyActions = map[string]BufKeyAction{
 	"Escape":                    (*BufPane).Escape,
 	"Quit":                      (*BufPane).Quit,
 	"QuitAll":                   (*BufPane).QuitAll,
-	"ForceQuit":                 (*BufPane).ForceQuit,
 	"AddTab":                    (*BufPane).AddTab,
 	"PreviousTab":               (*BufPane).PreviousTab,
 	"NextTab":                   (*BufPane).NextTab,
@@ -781,6 +688,8 @@ var BufKeyActions = map[string]BufKeyAction{
 	"JumpLine":                  (*BufPane).JumpLine,
 	"Deselect":                  (*BufPane).Deselect,
 	"ClearInfo":                 (*BufPane).ClearInfo,
+	"SemanticInfo":              (*BufPane).SemanticInfo,
+	"AutoFormat":                (*BufPane).AutoFormat,
 	"None":                      (*BufPane).None,
 
 	// This was changed to InsertNewline but I don't want to break backwards compatibility

internal/action/command.go

@@ -646,7 +646,7 @@ func (h *BufPane) ShowKeyCmd(args []string) {
 		InfoBar.Error(err)
 		return
 	}
-	if action, ok := config.Bindings["buffer"][event.Name()]; ok {
+	if action, ok := config.Bindings[event.Name()]; ok {
 		InfoBar.Message(action)
 	} else {
 		InfoBar.Message(args[0], " has no binding")
@@ -722,7 +722,7 @@ func (h *BufPane) GotoCmd(args []string) {
 			}
 			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})
+			h.Cursor.GotoLoc(buffer.Loc{col, line})
 		} else {
 			line, err := strconv.Atoi(args[0])
 			if err != nil {
@@ -733,8 +733,9 @@ func (h *BufPane) GotoCmd(args []string) {
 				line = h.Buf.LinesNum() + 1 + line
 			}
 			line = util.Clamp(line-1, 0, h.Buf.LinesNum()-1)
-			h.GotoLoc(buffer.Loc{0, line})
+			h.Cursor.GotoLoc(buffer.Loc{0, line})
 		}
+		h.Relocate()
 	}
 }
 
@@ -819,7 +820,7 @@ func (h *BufPane) ReplaceCmd(args []string) {
 		searchLoc := h.Cursor.Loc
 		var doReplacement func()
 		doReplacement = func() {
-			locs, found, err := h.Buf.FindNext(search, start, end, searchLoc, true, true)
+			locs, found, err := h.Buf.FindNext(search, start, end, searchLoc, true, !noRegex)
 			if err != nil {
 				InfoBar.Error(err)
 				return
@@ -833,10 +834,9 @@ func (h *BufPane) ReplaceCmd(args []string) {
 
 			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)
+			h.Cursor.GotoLoc(locs[0])
+
+			h.Relocate()
 
 			InfoBar.YNPrompt("Perform replacement (y,n,esc)", func(yes, canceled bool) {
 				if !canceled && yes {
@@ -850,7 +850,8 @@ func (h *BufPane) ReplaceCmd(args []string) {
 					h.Cursor.Loc = searchLoc
 					nreplaced++
 				} else if !canceled && !yes {
-					searchLoc = locs[1]
+					searchLoc = locs[0]
+					searchLoc.X += util.CharacterCount(replace)
 				} else if canceled {
 					h.Cursor.ResetSelection()
 					h.Buf.RelocateCursors()

internal/action/defaults.go

@@ -9,7 +9,7 @@ var termdefaults = map[string]string{
 // DefaultBindings returns a map containing micro's default keybindings
 func DefaultBindings(pane string) map[string]string {
 	switch pane {
-	case "command":
+	case "info":
 		return infodefaults
 	case "buffer":
 		return bufdefaults

internal/action/defaults_darwin.go

@@ -38,11 +38,8 @@ var bufdefaults = map[string]string{
 	"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",
@@ -89,7 +86,7 @@ var bufdefaults = map[string]string{
 	"F4":  "Quit",
 	"F7":  "Find",
 	"F10": "Quit",
-	"Esc": "Escape,Deselect,ClearInfo,RemoveAllMultiCursors,UnhighlightSearch",
+	"Esc": "Escape,Deselect,ClearInfo,RemoveAllMultiCursors",
 
 	// Mouse bindings
 	"MouseWheelUp":   "ScrollUp",

internal/action/defaults_other.go

@@ -1,4 +1,3 @@
-//go:build !darwin
 // +build !darwin
 
 package action
@@ -41,11 +40,8 @@ var bufdefaults = map[string]string{
 	"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",
@@ -76,6 +72,7 @@ var bufdefaults = map[string]string{
 	"Ctrl-w":         "NextSplit",
 	"Ctrl-u":         "ToggleMacro",
 	"Ctrl-j":         "PlayMacro",
+	"Alt-i":          "SemanticInfo",
 	"Insert":         "ToggleOverwriteMode",
 
 	// Emacs-style keybindings
@@ -92,7 +89,7 @@ var bufdefaults = map[string]string{
 	"F4":  "Quit",
 	"F7":  "Find",
 	"F10": "Quit",
-	"Esc": "Escape,Deselect,ClearInfo,RemoveAllMultiCursors,UnhighlightSearch",
+	"Esc": "Escape,Deselect,ClearInfo,RemoveAllMultiCursors",
 
 	// Mouse bindings
 	"MouseWheelUp":   "ScrollUp",

internal/action/events.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type Event interface {
@@ -36,14 +36,6 @@ type KeyEvent struct {
 	any  bool
 }
 
-func metaToAlt(mod tcell.ModMask) tcell.ModMask {
-	if mod&tcell.ModMeta != 0 {
-		mod &= ^tcell.ModMeta
-		mod |= tcell.ModAlt
-	}
-	return mod
-}
-
 func (k KeyEvent) Name() string {
 	if k.any {
 		return "<any>"
@@ -140,7 +132,7 @@ func ConstructEvent(event tcell.Event) (Event, error) {
 	case *tcell.EventKey:
 		return KeyEvent{
 			code: e.Key(),
-			mod:  metaToAlt(e.Modifiers()),
+			mod:  e.Modifiers(),
 			r:    e.Rune(),
 		}, nil
 	case *tcell.EventRaw:
@@ -150,7 +142,7 @@ func ConstructEvent(event tcell.Event) (Event, error) {
 	case *tcell.EventMouse:
 		return MouseEvent{
 			btn: e.Buttons(),
-			mod: metaToAlt(e.Modifiers()),
+			mod: e.Modifiers(),
 		}, nil
 	}
 	return nil, errors.New("No micro event equivalent")

internal/action/globals.go

@@ -2,10 +2,7 @@ package action
 
 import "github.com/zyedidia/micro/v2/internal/buffer"
 
-// InfoBar is the global info bar.
 var InfoBar *InfoPane
-
-// LogBufPane is a global log buffer.
 var LogBufPane *BufPane
 
 // InitGlobals initializes the log buffer and the info bar
@@ -24,6 +21,13 @@ func WriteLog(s string) {
 	buffer.WriteLog(s)
 	if LogBufPane != nil {
 		LogBufPane.CursorEnd()
+		v := LogBufPane.GetView()
+		endY := buffer.LogBuf.End().Y
+
+		if endY > v.StartLine+v.Height {
+			v.StartLine = buffer.LogBuf.End().Y - v.Height + 2
+			LogBufPane.SetView(v)
+		}
 	}
 }
 
@@ -33,4 +37,12 @@ func WriteLog(s string) {
 func (h *BufPane) OpenLogBuf() {
 	LogBufPane = h.HSplitBuf(buffer.LogBuf)
 	LogBufPane.CursorEnd()
+
+	v := LogBufPane.GetView()
+	endY := buffer.LogBuf.End().Y
+
+	if endY > v.StartLine+v.Height {
+		v.StartLine = buffer.LogBuf.End().Y - v.Height + 2
+		LogBufPane.SetView(v)
+	}
 }

internal/action/infocomplete.go

@@ -15,7 +15,7 @@ import (
 // for example with `vsplit filename`.
 
 // CommandComplete autocompletes commands
-func CommandComplete(b *buffer.Buffer) ([]string, []string) {
+func CommandComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	input, argstart := buffer.GetArg(b)
 
@@ -32,11 +32,11 @@ func CommandComplete(b *buffer.Buffer) ([]string, []string) {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
 
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // HelpComplete autocompletes help topics
-func HelpComplete(b *buffer.Buffer) ([]string, []string) {
+func HelpComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	input, argstart := buffer.GetArg(b)
 
@@ -54,7 +54,7 @@ func HelpComplete(b *buffer.Buffer) ([]string, []string) {
 	for i := range suggestions {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // colorschemeComplete tab-completes names of colorschemes.
@@ -87,7 +87,7 @@ func contains(s []string, e string) bool {
 }
 
 // OptionComplete autocompletes options
-func OptionComplete(b *buffer.Buffer) ([]string, []string) {
+func OptionComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	input, argstart := buffer.GetArg(b)
 
@@ -97,22 +97,17 @@ func OptionComplete(b *buffer.Buffer) ([]string, []string) {
 			suggestions = append(suggestions, option)
 		}
 	}
-	// for option := range localSettings {
-	// 	if strings.HasPrefix(option, input) && !contains(suggestions, option) {
-	// 		suggestions = append(suggestions, option)
-	// 	}
-	// }
 
 	sort.Strings(suggestions)
 	completions := make([]string, len(suggestions))
 	for i := range suggestions {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // OptionValueComplete completes values for various options
-func OptionValueComplete(b *buffer.Buffer) ([]string, []string) {
+func OptionValueComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	l := b.LineBytes(c.Y)
 	l = util.SliceStart(l, c.X)
@@ -128,12 +123,6 @@ func OptionValueComplete(b *buffer.Buffer) ([]string, []string) {
 				break
 			}
 		}
-		// for option := range localSettings {
-		// 	if option == string(args[len(args)-2]) {
-		// 		completeValue = true
-		// 		break
-		// 	}
-		// }
 	}
 	if !completeValue {
 		return OptionComplete(b)
@@ -150,11 +139,6 @@ func OptionValueComplete(b *buffer.Buffer) ([]string, []string) {
 			optionVal = option
 		}
 	}
-	// for k, option := range localSettings {
-	// 	if k == inputOpt {
-	// 		optionVal = option
-	// 	}
-	// }
 
 	switch optionVal.(type) {
 	case bool:
@@ -204,11 +188,11 @@ func OptionValueComplete(b *buffer.Buffer) ([]string, []string) {
 	for i := range suggestions {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // PluginCmdComplete autocompletes the plugin command
-func PluginCmdComplete(b *buffer.Buffer) ([]string, []string) {
+func PluginCmdComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	input, argstart := buffer.GetArg(b)
 
@@ -224,11 +208,11 @@ func PluginCmdComplete(b *buffer.Buffer) ([]string, []string) {
 	for i := range suggestions {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // PluginComplete completes values for the plugin command
-func PluginComplete(b *buffer.Buffer) ([]string, []string) {
+func PluginComplete(b *buffer.Buffer) []buffer.Completion {
 	c := b.GetActiveCursor()
 	l := b.LineBytes(c.Y)
 	l = util.SliceStart(l, c.X)
@@ -260,7 +244,7 @@ func PluginComplete(b *buffer.Buffer) ([]string, []string) {
 	for i := range suggestions {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
-	return completions, suggestions
+	return buffer.ConvertCompletions(completions, suggestions, c)
 }
 
 // PluginNameComplete completes with the names of loaded plugins

internal/action/infopane.go

@@ -4,11 +4,10 @@ import (
 	"bytes"
 
 	"github.com/zyedidia/micro/v2/internal/buffer"
-	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/display"
 	"github.com/zyedidia/micro/v2/internal/info"
 	"github.com/zyedidia/micro/v2/internal/util"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type InfoKeyAction func(*InfoPane)
@@ -22,8 +21,6 @@ func init() {
 }
 
 func InfoMapEvent(k Event, action string) {
-	config.Bindings["command"][k.Name()] = action
-
 	switch e := k.(type) {
 	case KeyEvent, KeySequenceEvent, RawEvent:
 		infoMapKey(e, action)
@@ -86,17 +83,17 @@ func (h *InfoPane) HandleEvent(event tcell.Event) {
 	case *tcell.EventKey:
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  metaToAlt(e.Modifiers()),
+			mod:  e.Modifiers(),
 			r:    e.Rune(),
 		}
 
 		done := h.DoKeyEvent(ke)
 		hasYN := h.HasYN
 		if e.Key() == tcell.KeyRune && hasYN {
-			if (e.Rune() == 'y' || e.Rune() == 'Y') && hasYN {
+			if e.Rune() == 'y' && hasYN {
 				h.YNResp = true
 				h.DonePrompt(false)
-			} else if (e.Rune() == 'n' || e.Rune() == 'N') && hasYN {
+			} else if e.Rune() == 'n' && hasYN {
 				h.YNResp = false
 				h.DonePrompt(false)
 			}
@@ -108,11 +105,7 @@ func (h *InfoPane) HandleEvent(event tcell.Event) {
 		if done && h.HasPrompt && !hasYN {
 			resp := string(h.LineBytes(0))
 			hist := h.History[h.PromptType]
-			if resp != hist[h.HistoryNum] {
-				h.HistoryNum = len(hist) - 1
-				hist[h.HistoryNum] = resp
-				h.HistorySearch = false
-			}
+			hist[h.HistoryNum] = resp
 			if h.EventCallback != nil {
 				h.EventCallback(resp)
 			}
@@ -159,18 +152,6 @@ func (h *InfoPane) HistoryDown() {
 	h.DownHistory(h.History[h.PromptType])
 }
 
-// HistorySearchUp fetches the previous history item beginning with the text
-// in the infobuffer before cursor
-func (h *InfoPane) HistorySearchUp() {
-	h.SearchUpHistory(h.History[h.PromptType])
-}
-
-// HistorySearchDown fetches the next history item beginning with the text
-// in the infobuffer before cursor
-func (h *InfoPane) HistorySearchDown() {
-	h.SearchDownHistory(h.History[h.PromptType])
-}
-
 // Autocomplete begins autocompletion
 func (h *InfoPane) CommandComplete() {
 	b := h.Buf
@@ -214,11 +195,9 @@ func (h *InfoPane) AbortCommand() {
 
 // InfoKeyActions contains the list of all possible key actions the infopane could execute
 var InfoKeyActions = map[string]InfoKeyAction{
-	"HistoryUp":         (*InfoPane).HistoryUp,
-	"HistoryDown":       (*InfoPane).HistoryDown,
-	"HistorySearchUp":   (*InfoPane).HistorySearchUp,
-	"HistorySearchDown": (*InfoPane).HistorySearchDown,
-	"CommandComplete":   (*InfoPane).CommandComplete,
-	"ExecuteCommand":    (*InfoPane).ExecuteCommand,
-	"AbortCommand":      (*InfoPane).AbortCommand,
+	"HistoryUp":       (*InfoPane).HistoryUp,
+	"HistoryDown":     (*InfoPane).HistoryDown,
+	"CommandComplete": (*InfoPane).CommandComplete,
+	"ExecuteCommand":  (*InfoPane).ExecuteCommand,
+	"AbortCommand":    (*InfoPane).AbortCommand,
 }

internal/action/keytree.go

@@ -3,7 +3,7 @@ package action
 import (
 	"bytes"
 
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type PaneKeyAction func(Pane) bool
@@ -229,7 +229,7 @@ func (k *KeyTree) ResetEvents() {
 	k.cursor.mouseInfo = nil
 }
 
-// RecordedEventsStr returns the list of recorded events as a string
+// CurrentEventsStr returns the list of recorded events as a string
 func (k *KeyTree) RecordedEventsStr() string {
 	buf := &bytes.Buffer{}
 	for _, e := range k.cursor.recordedEvents {

internal/action/pane.go

@@ -4,7 +4,6 @@ import (
 	"github.com/zyedidia/micro/v2/internal/display"
 )
 
-// A Pane is a general interface for a window in the editor.
 type Pane interface {
 	Handler
 	display.Window

internal/action/rawpane.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/zyedidia/micro/v2/internal/buffer"
 	"github.com/zyedidia/micro/v2/internal/display"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type RawPane struct {

internal/action/tab.go

@@ -1,15 +1,12 @@
 package action
 
 import (
-	luar "layeh.com/gopher-luar"
-
 	"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/views"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 // The TabList is a list of tabs and a window to display the tab bar
@@ -151,19 +148,7 @@ func (t *TabList) Display() {
 var Tabs *TabList
 
 func InitTabs(bufs []*buffer.Buffer) {
-	multiopen := config.GetGlobalOption("multiopen").(string)
-	if multiopen == "tab" {
-		Tabs = NewTabList(bufs)
-	} else {
-		Tabs = NewTabList(bufs[:1])
-		for _, b := range bufs[1:] {
-			if multiopen == "vsplit" {
-				MainTab().CurPane().VSplitBuf(b)
-			} else {  // default hsplit
-				MainTab().CurPane().HSplitBuf(b)
-			}
-		}
-	}
+	Tabs = NewTabList(bufs)
 }
 
 func MainTab() *Tab {
@@ -279,11 +264,6 @@ func (t *Tab) SetActive(i int) {
 			p.SetActive(false)
 		}
 	}
-
-	err := config.RunPluginFn("onSetActive", luar.New(ulua.L, MainTab().CurPane()))
-	if err != nil {
-		screen.TermMessage(err)
-	}
 }
 
 // GetPane returns the pane with the given split index

internal/action/termpane.go

@@ -5,11 +5,10 @@ import (
 	"runtime"
 
 	"github.com/zyedidia/micro/v2/internal/clipboard"
-	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/display"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/shell"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 	"github.com/zyedidia/terminal"
 )
 
@@ -29,8 +28,6 @@ func TermKeyActionGeneral(a TermKeyAction) PaneKeyAction {
 }
 
 func TermMapEvent(k Event, action string) {
-	config.Bindings["terminal"][k.Name()] = action
-
 	switch e := k.(type) {
 	case KeyEvent, KeySequenceEvent, RawEvent:
 		termMapKey(e, action)
@@ -123,7 +120,7 @@ func (t *TermPane) HandleEvent(event tcell.Event) {
 	if e, ok := event.(*tcell.EventKey); ok {
 		ke := KeyEvent{
 			code: e.Key(),
-			mod:  metaToAlt(e.Modifiers()),
+			mod:  e.Modifiers(),
 			r:    e.Rune(),
 		}
 		action, more := TermBindings.NextEvent(ke, nil)

internal/buffer/autocomplete.go

@@ -7,7 +7,9 @@ import (
 	"sort"
 	"strings"
 
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	"github.com/zyedidia/micro/v2/internal/util"
+	"go.lsp.dev/protocol"
 )
 
 // A Completer is a function that takes a buffer and returns info
@@ -17,47 +19,61 @@ import (
 // the current cursor location if selected as well as a list of
 // suggestion names which can be displayed in an autocomplete box or
 // other UI element
-type Completer func(*Buffer) ([]string, []string)
-
-func (b *Buffer) GetSuggestions() {
+type Completer func(*Buffer) []Completion
 
+type Completion struct {
+	Edits       []Delta
+	Label       string
+	CommitChars []rune
+	Kind        string
+	Filter      string
+	Detail      string
+	Doc         string
 }
 
 // Autocomplete starts the autocomplete process
 func (b *Buffer) Autocomplete(c Completer) bool {
-	b.Completions, b.Suggestions = c(b)
-	if len(b.Completions) != len(b.Suggestions) || len(b.Completions) == 0 {
+	b.Completions = c(b)
+	if len(b.Completions) == 0 {
 		return false
 	}
-	b.CurSuggestion = -1
+	b.CurCompletion = -1
 	b.CycleAutocomplete(true)
 	return true
 }
 
 // CycleAutocomplete moves to the next suggestion
 func (b *Buffer) CycleAutocomplete(forward bool) {
-	prevSuggestion := b.CurSuggestion
+	prevCompletion := b.CurCompletion
 
 	if forward {
-		b.CurSuggestion++
+		b.CurCompletion++
 	} else {
-		b.CurSuggestion--
+		b.CurCompletion--
 	}
-	if b.CurSuggestion >= len(b.Suggestions) {
-		b.CurSuggestion = 0
-	} else if b.CurSuggestion < 0 {
-		b.CurSuggestion = len(b.Suggestions) - 1
+	if b.CurCompletion >= len(b.Completions) {
+		b.CurCompletion = 0
+	} else if b.CurCompletion < 0 {
+		b.CurCompletion = len(b.Completions) - 1
 	}
 
-	c := b.GetActiveCursor()
-	start := c.Loc
-	end := c.Loc
-	if prevSuggestion < len(b.Suggestions) && prevSuggestion >= 0 {
-		start = end.Move(-util.CharacterCountInString(b.Completions[prevSuggestion]), b)
+	// undo prev completion
+	if prevCompletion != -1 {
+		prev := b.Completions[prevCompletion]
+		for i := 0; i < len(prev.Edits); i++ {
+			if len(prev.Edits[i].Text) != 0 {
+				b.UndoOneEvent()
+			}
+			if !prev.Edits[i].Start.Equal(prev.Edits[i].End) {
+				b.UndoOneEvent()
+			}
+		}
 	}
 
-	b.Replace(start, end, b.Completions[b.CurSuggestion])
-	if len(b.Suggestions) > 1 {
+	// apply current completion
+	comp := b.Completions[b.CurCompletion]
+	b.ApplyDeltas(comp.Edits)
+	if len(b.Completions) > 1 {
 		b.HasSuggestions = true
 	}
 }
@@ -69,11 +85,11 @@ func GetWord(b *Buffer) ([]byte, int) {
 	l := b.LineBytes(c.Y)
 	l = util.SliceStart(l, c.X)
 
-	if c.X == 0 || util.IsWhitespace(b.RuneAt(c.Loc.Move(-1, b))) {
+	if c.X == 0 || util.IsWhitespace(b.RuneAt(c.Loc)) {
 		return []byte{}, -1
 	}
 
-	if util.IsNonAlphaNumeric(b.RuneAt(c.Loc.Move(-1, b))) {
+	if util.IsNonAlphaNumeric(b.RuneAt(c.Loc)) {
 		return []byte{}, c.X
 	}
 
@@ -102,7 +118,7 @@ func GetArg(b *Buffer) (string, int) {
 }
 
 // FileComplete autocompletes filenames
-func FileComplete(b *Buffer) ([]string, []string) {
+func FileComplete(b *Buffer) []Completion {
 	c := b.GetActiveCursor()
 	input, argstart := GetArg(b)
 
@@ -121,7 +137,7 @@ func FileComplete(b *Buffer) ([]string, []string) {
 	}
 
 	if err != nil {
-		return nil, nil
+		return nil
 	}
 
 	var suggestions []string
@@ -147,16 +163,16 @@ func FileComplete(b *Buffer) ([]string, []string) {
 		completions[i] = util.SliceEndStr(complete, c.X-argstart)
 	}
 
-	return completions, suggestions
+	return ConvertCompletions(completions, suggestions, c)
 }
 
 // BufferComplete autocompletes based on previous words in the buffer
-func BufferComplete(b *Buffer) ([]string, []string) {
+func BufferComplete(b *Buffer) []Completion {
 	c := b.GetActiveCursor()
 	input, argstart := GetWord(b)
 
 	if argstart == -1 {
-		return []string{}, []string{}
+		return nil
 	}
 
 	inputLen := util.CharacterCount(input)
@@ -199,5 +215,97 @@ func BufferComplete(b *Buffer) ([]string, []string) {
 		completions[i] = util.SliceEndStr(suggestions[i], c.X-argstart)
 	}
 
-	return completions, suggestions
+	return ConvertCompletions(completions, suggestions, c)
+}
+
+func LSPComplete(b *Buffer) []Completion {
+	if !b.HasLSP() {
+		return nil
+	}
+
+	c := b.GetActiveCursor()
+	pos := lsp.Position(c.X, c.Y)
+	items, err := b.Server.Completion(b.AbsPath, pos)
+	if err != nil {
+		return nil
+	}
+
+	completions := make([]Completion, len(items))
+
+	for i, item := range items {
+		completions[i] = Completion{
+			Label:  item.Label,
+			Detail: item.Detail,
+			Kind:   toKindStr(item.Kind),
+			Doc:    getDoc(item.Documentation),
+		}
+
+		if item.TextEdit != nil && len(item.TextEdit.NewText) > 0 {
+			completions[i].Edits = []Delta{Delta{
+				Text:  []byte(item.TextEdit.NewText),
+				Start: toLoc(item.TextEdit.Range.Start),
+				End:   toLoc(item.TextEdit.Range.End),
+			}}
+			// for _, e := range item.AdditionalTextEdits {
+			// 	d := Delta{
+			// 		Text:  []byte(e.NewText),
+			// 		Start: toLoc(e.Range.Start),
+			// 		End:   toLoc(e.Range.End),
+			// 	}
+			// 	completions[i].Edits = append(completions[i].Edits, d)
+			// }
+		} else {
+			var t string
+			if len(item.InsertText) > 0 {
+				t = item.InsertText
+			} else {
+				t = item.Label
+			}
+			_, argstart := GetWord(b)
+			str := util.SliceEnd([]byte(t), c.X-argstart)
+			completions[i].Edits = []Delta{Delta{
+				Text:  str,
+				Start: Loc{c.X, c.Y},
+				End:   Loc{c.X, c.Y},
+			}}
+		}
+	}
+
+	return completions
+}
+
+// ConvertCompletions converts a list of insert text with suggestion labels
+// to an array of completion objects ready for autocompletion
+func ConvertCompletions(completions, suggestions []string, c *Cursor) []Completion {
+	comp := make([]Completion, len(completions))
+
+	for i := 0; i < len(completions); i++ {
+		comp[i] = Completion{
+			Label: suggestions[i],
+		}
+		comp[i].Edits = []Delta{Delta{
+			Text:  []byte(completions[i]),
+			Start: Loc{c.X, c.Y},
+			End:   Loc{c.X, c.Y},
+		}}
+	}
+	return comp
+}
+
+func toKindStr(k protocol.CompletionItemKind) string {
+	s := k.String()
+	return strings.ToLower(string(s[0]))
+}
+
+// returns documentation from a string | MarkupContent item
+func getDoc(documentation interface{}) string {
+	var doc string
+	switch s := documentation.(type) {
+	case string:
+		doc = s
+	case protocol.MarkupContent:
+		doc = s.Value
+	}
+
+	return strings.Split(doc, "\n")[0]
 }

internal/buffer/backup.go

@@ -5,7 +5,6 @@ import (
 	"io"
 	"os"
 	"path/filepath"
-	"sync/atomic"
 	"time"
 
 	"github.com/zyedidia/micro/v2/internal/config"
@@ -26,9 +25,8 @@ The backup was created on %s, and the file is
   When the buffer is closed, the backup will be removed.
 * 'ignore' will ignore the backup, discarding its changes. The backup file
   will be removed.
-* 'abort' will abort the open operation, and instead open an empty buffer.
 
-Options: [r]ecover, [i]gnore, [a]bort: `
+Options: [r]ecover, [i]gnore: `
 
 var backupRequestChan chan *Buffer
 
@@ -38,10 +36,7 @@ func backupThread() {
 
 		for len(backupRequestChan) > 0 {
 			b := <-backupRequestChan
-			bfini := atomic.LoadInt32(&(b.fini)) != 0
-			if !bfini {
-				b.Backup()
-			}
+			b.Backup()
 		}
 	}
 }
@@ -70,7 +65,7 @@ func (b *Buffer) Backup() error {
 	}
 
 	backupdir, err := util.ReplaceHome(b.Settings["backupdir"].(string))
-	if backupdir == "" || err != nil {
+	if len(backupdir) == 0 || err != nil {
 		backupdir = filepath.Join(config.ConfigDir, "backups")
 	}
 	if _, err := os.Stat(backupdir); os.IsNotExist(err) {
@@ -119,7 +114,7 @@ func (b *Buffer) RemoveBackup() {
 
 // ApplyBackup applies the corresponding backup file to this buffer (if one exists)
 // Returns true if a backup was applied
-func (b *Buffer) ApplyBackup(fsize int64) (bool, bool) {
+func (b *Buffer) ApplyBackup(fsize int64) bool {
 	if b.Settings["backup"].(bool) && !b.Settings["permbackup"].(bool) && len(b.Path) > 0 && b.Type == BTDefault {
 		backupfile := filepath.Join(config.ConfigDir, "backups", util.EscapePath(b.AbsPath))
 		if info, err := os.Stat(backupfile); err == nil {
@@ -128,22 +123,20 @@ func (b *Buffer) ApplyBackup(fsize int64) (bool, bool) {
 				defer backup.Close()
 				t := info.ModTime()
 				msg := fmt.Sprintf(backupMsg, t.Format("Mon Jan _2 at 15:04, 2006"), util.EscapePath(b.AbsPath))
-				choice := screen.TermPrompt(msg, []string{"r", "i", "a", "recover", "ignore", "abort"}, true)
+				choice := screen.TermPrompt(msg, []string{"r", "i", "recover", "ignore"}, true)
 
-				if choice%3 == 0 {
+				if choice%2 == 0 {
 					// recover
 					b.LineArray = NewLineArray(uint64(fsize), FFAuto, backup)
 					b.isModified = true
-					return true, true
-				} else if choice%3 == 1 {
+					return true
+				} else if choice%2 == 1 {
 					// delete
 					os.Remove(backupfile)
-				} else if choice%3 == 2 {
-					return false, false
 				}
 			}
 		}
 	}
 
-	return false, true
+	return false
 }

internal/buffer/buffer.go

@@ -10,24 +10,26 @@ import (
 	"io/ioutil"
 	"os"
 	"path"
+	gopath "path"
 	"path/filepath"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
-	luar "layeh.com/gopher-luar"
-
 	dmp "github.com/sergi/go-diff/diffmatchpatch"
 	"github.com/zyedidia/micro/v2/internal/config"
+	"github.com/zyedidia/micro/v2/internal/lsp"
 	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/micro/v2/pkg/highlight"
+	lspt "go.lsp.dev/protocol"
 	"golang.org/x/text/encoding/htmlindex"
 	"golang.org/x/text/encoding/unicode"
 	"golang.org/x/text/transform"
+	luar "layeh.com/gopher-luar"
 )
 
 const backupTime = 8000
@@ -91,9 +93,8 @@ type SharedBuffer struct {
 	// Settings customized by the user
 	Settings map[string]interface{}
 
-	Suggestions   []string
-	Completions   []string
-	CurSuggestion int
+	Completions   []Completion
+	CurCompletion int
 
 	Messages []*Message
 
@@ -124,6 +125,9 @@ type SharedBuffer struct {
 
 	// Hash of the original buffer -- empty if fastdirty is on
 	origHash [md5.Size]byte
+
+	Server  *lsp.Server
+	version uint64
 }
 
 func (b *SharedBuffer) insert(pos Loc, value []byte) {
@@ -133,12 +137,37 @@ func (b *SharedBuffer) insert(pos Loc, value []byte) {
 
 	inslines := bytes.Count(value, []byte{'\n'})
 	b.MarkModified(pos.Y, pos.Y+inslines)
+
+	b.lspDidChange(pos, pos, string(value))
 }
 func (b *SharedBuffer) remove(start, end Loc) []byte {
 	b.isModified = true
 	b.HasSuggestions = false
 	defer b.MarkModified(start.Y, end.Y)
-	return b.LineArray.remove(start, end)
+	sub := b.LineArray.remove(start, end)
+	b.lspDidChange(start, end, "")
+	return sub
+}
+
+func (b *SharedBuffer) lspDidChange(start, end Loc, text string) {
+	b.version++
+	// TODO: convert to UTF16 codepoints
+	change := lspt.TextDocumentContentChangeEvent{
+		Range: &lspt.Range{
+			Start: lsp.Position(start.X, start.Y),
+			End:   lsp.Position(end.X, end.Y),
+		},
+		Text: text,
+	}
+
+	if b.HasLSP() {
+		b.Server.DidChange(b.AbsPath, b.version, []lspt.TextDocumentContentChangeEvent{change})
+	}
+}
+
+// HasLSP returns whether this buffer is communicating with an LSP server
+func (b *SharedBuffer) HasLSP() bool {
+	return b.Server != nil && b.Server.Active
 }
 
 // MarkModified marks the buffer as modified for this frame
@@ -146,20 +175,18 @@ func (b *SharedBuffer) remove(start, end Loc) []byte {
 func (b *SharedBuffer) MarkModified(start, end int) {
 	b.ModifiedThisFrame = true
 
+	if !b.Settings["syntax"].(bool) || b.SyntaxDef == nil {
+		return
+	}
+
 	start = util.Clamp(start, 0, len(b.lines)-1)
 	end = util.Clamp(end, 0, len(b.lines)-1)
 
-	if b.Settings["syntax"].(bool) && b.SyntaxDef != nil {
-		l := -1
-		for i := start; i <= end; i++ {
-			l = util.Max(b.Highlighter.ReHighlightStates(b, i), l)
-		}
-		b.Highlighter.HighlightMatches(b, start, l)
-	}
-
+	l := -1
 	for i := start; i <= end; i++ {
-		b.LineArray.invalidateSearchMatches(i)
+		l = util.Max(b.Highlighter.ReHighlightStates(b, i), l)
 	}
+	b.Highlighter.HighlightMatches(b, start, l)
 }
 
 // DisableReload disables future reloads of this sharedbuffer
@@ -183,34 +210,13 @@ type DiffStatus byte
 // The syntax highlighting info must be stored with the buffer because the syntax
 // highlighter attaches information to each line of the buffer for optimization
 // purposes so it doesn't have to rehighlight everything on every update.
-// Likewise for the search highlighting.
 type Buffer struct {
 	*EventHandler
 	*SharedBuffer
 
-	fini        int32
 	cursors     []*Cursor
 	curCursor   int
 	StartCursor Loc
-
-	// OptionCallback is called after a buffer option value is changed.
-	// The display module registers its OptionCallback to ensure the buffer window
-	// is properly updated when needed. This is a workaround for the fact that
-	// the buffer module cannot directly call the display's API (it would mean
-	// a circular dependency between packages).
-	OptionCallback func(option string, nativeValue interface{})
-
-	// The display module registers its own GetVisualX function for getting
-	// the correct visual x location of a cursor when softwrap is used.
-	// This is hacky. Maybe it would be better to move all the visual x logic
-	// from buffer to display, but it would require rewriting a lot of code.
-	GetVisualX func(loc Loc) int
-
-	// Last search stores the last successful search
-	LastSearch      string
-	LastSearchRegex bool
-	// HighlightSearch enables highlighting all instances of the last successful search
-	HighlightSearch bool
 }
 
 // NewBufferFromFileAtLoc opens a new buffer with a given cursor location
@@ -234,39 +240,21 @@ func NewBufferFromFileAtLoc(path string, btype BufType, cursorLoc Loc) (*Buffer,
 		return nil, err
 	}
 
-	f, err := os.OpenFile(filename, os.O_WRONLY, 0)
-	readonly := os.IsPermission(err)
-	f.Close()
+	file, err := os.Open(filename)
+	fileInfo, _ := os.Stat(filename)
 
-	fileInfo, serr := os.Stat(filename)
-	if serr != nil && !os.IsNotExist(serr) {
-		return nil, serr
-	}
-	if serr == nil && fileInfo.IsDir() {
+	if err == nil && fileInfo.IsDir() {
 		return nil, errors.New("Error: " + filename + " is a directory and cannot be opened")
 	}
 
-	file, err := os.Open(filename)
-	if err == nil {
-		defer file.Close()
-	}
+	defer file.Close()
 
 	var buf *Buffer
-	if os.IsNotExist(err) {
+	if err != nil {
 		// File does not exist -- create an empty buffer with that name
 		buf = NewBufferFromString("", filename, btype)
-	} else if err != nil {
-		return nil, err
 	} else {
 		buf = NewBuffer(file, util.FSize(file), filename, cursorLoc, btype)
-		if buf == nil {
-			return nil, errors.New("could not open file")
-		}
-	}
-
-	if readonly && prompt != nil {
-		prompt.Message(fmt.Sprintf("Warning: file is readonly - %s will be attempted when saving", config.GlobalSettings["sucmd"].(string)))
-		// buf.SetOptionNative("readonly", true)
 	}
 
 	return buf, nil
@@ -296,10 +284,7 @@ func NewBufferFromString(text, path string, btype BufType) *Buffer {
 // Places the cursor at startcursor. If startcursor is -1, -1 places the
 // cursor at an autodetected location (based on savecursor or :LINE:COL)
 func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufType) *Buffer {
-	absPath, err := filepath.Abs(path)
-	if err != nil {
-		absPath = path
-	}
+	absPath, _ := filepath.Abs(path)
 
 	b := new(Buffer)
 
@@ -322,38 +307,23 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 		b.AbsPath = absPath
 		b.Path = path
 
-		// this is a little messy since we need to know some settings to read
-		// the file properly, but some settings depend on the filetype, which
-		// we don't know until reading the file. We first read the settings
-		// into a local variable and then use that to determine the encoding,
-		// readonly, and fileformat necessary for reading the file and
-		// assigning the filetype.
-		settings := config.DefaultCommonSettings()
 		b.Settings = config.DefaultCommonSettings()
 		for k, v := range config.GlobalSettings {
 			if _, ok := config.DefaultGlobalOnlySettings[k]; !ok {
 				// make sure setting is not global-only
-				settings[k] = v
 				b.Settings[k] = v
 			}
 		}
-		config.InitLocalSettings(settings, absPath)
-		b.Settings["readonly"] = settings["readonly"]
-		b.Settings["filetype"] = settings["filetype"]
-		b.Settings["syntax"] = settings["syntax"]
+		config.InitLocalSettings(b.Settings, path)
 
-		enc, err := htmlindex.Get(settings["encoding"].(string))
+		enc, err := htmlindex.Get(b.Settings["encoding"].(string))
 		if err != nil {
 			enc = unicode.UTF8
 			b.Settings["encoding"] = "utf-8"
 		}
 
-		var ok bool
-		hasBackup, ok = b.ApplyBackup(size)
+		hasBackup = b.ApplyBackup(size)
 
-		if !ok {
-			return NewBufferFromString("", "", btype)
-		}
 		if !hasBackup {
 			reader := bufio.NewReader(transform.NewReader(r, enc.NewDecoder()))
 
@@ -362,7 +332,7 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 			if size == 0 {
 				// for empty files, use the fileformat setting instead of
 				// autodetection
-				switch settings["fileformat"] {
+				switch b.Settings["fileformat"] {
 				case "unix":
 					ff = FFUnix
 				case "dos":
@@ -399,10 +369,12 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 
 	if startcursor.X != -1 && startcursor.Y != -1 {
 		b.StartCursor = startcursor
-	} else if b.Settings["savecursor"].(bool) || b.Settings["saveundo"].(bool) {
-		err := b.Unserialize()
-		if err != nil {
-			screen.TermMessage(err)
+	} else {
+		if b.Settings["savecursor"].(bool) || b.Settings["saveundo"].(bool) {
+			err := b.Unserialize()
+			if err != nil {
+				screen.TermMessage(err)
+			}
 		}
 	}
 
@@ -420,23 +392,45 @@ func NewBuffer(r io.Reader, size int64, path string, startcursor Loc, btype BufT
 		}
 	}
 
-	err = config.RunPluginFn("onBufferOpen", luar.New(ulua.L, b))
+	err := config.RunPluginFn("onBufferOpen", luar.New(ulua.L, b))
 	if err != nil {
 		screen.TermMessage(err)
 	}
 
 	OpenBuffers = append(OpenBuffers, b)
 
+	if !found {
+		if btype == BTDefault && b.Settings["lsp"].(bool) {
+			b.lspInit()
+		}
+	}
+
 	return b
 }
 
-// CloseOpenBuffers removes all open buffers
-func CloseOpenBuffers() {
-	for i, buf := range OpenBuffers {
-		buf.Fini()
-		OpenBuffers[i] = nil
+// initializes an LSP server if possible, or calls didOpen on an existing
+// LSP server in this workspace
+func (b *Buffer) lspInit() {
+	ft := lsp.Filetype(b.Settings["filetype"].(string))
+	l, ok := lsp.GetLanguage(ft)
+	if ok && l.Installed() {
+		b.Server = lsp.GetServer(l, gopath.Dir(b.AbsPath))
+		if b.Server == nil {
+			var err error
+			b.Server, err = lsp.StartServer(l)
+			if err == nil {
+				d, _ := os.Getwd()
+				b.Server.Initialize(d)
+			}
+		}
+		if b.HasLSP() {
+			bytes := b.Bytes()
+			if len(bytes) == 0 {
+				bytes = []byte{'\n'}
+			}
+			b.Server.DidOpen(b.AbsPath, ft, string(bytes), b.version)
+		}
 	}
-	OpenBuffers = OpenBuffers[:0]
 }
 
 // Close removes this buffer from the list of open buffers
@@ -464,7 +458,9 @@ func (b *Buffer) Fini() {
 		fmt.Fprint(util.Stdout, string(b.Bytes()))
 	}
 
-	atomic.StoreInt32(&(b.fini), int32(1))
+	if b.HasLSP() {
+		b.Server.DidClose(b.AbsPath)
+	}
 }
 
 // GetName returns the name that should be displayed in the statusline
@@ -483,7 +479,7 @@ func (b *Buffer) GetName() string {
 	return name
 }
 
-// SetName changes the name for this buffer
+//SetName changes the name for this buffer
 func (b *Buffer) SetName(s string) {
 	b.name = s
 }
@@ -496,6 +492,7 @@ func (b *Buffer) Insert(start Loc, text string) {
 		b.EventHandler.Insert(start, text)
 
 		b.RequestBackup()
+		b.RelocateCursors()
 	}
 }
 
@@ -507,6 +504,68 @@ func (b *Buffer) Remove(start, end Loc) {
 		b.EventHandler.Remove(start, end)
 
 		b.RequestBackup()
+		b.RelocateCursors()
+	}
+}
+
+// ApplyEdit performs a LSP text edit on the buffer
+func (b *Buffer) ApplyEdit(e lspt.TextEdit) {
+	if len(e.NewText) == 0 {
+		// deletion
+		b.Remove(toLoc(e.Range.Start), toLoc(e.Range.End))
+	} else {
+		// insert/replace
+		b.Replace(toLoc(e.Range.Start), toLoc(e.Range.End), e.NewText)
+	}
+}
+
+func (b *Buffer) ApplyEdits(edits []lspt.TextEdit) {
+	if !b.Type.Readonly {
+		locs := make([]struct {
+			t          string
+			start, end Loc
+		}, len(edits))
+		for i, e := range edits {
+			locs[i] = struct {
+				t          string
+				start, end Loc
+			}{
+				t:     e.NewText,
+				start: toLoc(e.Range.Start),
+				end:   toLoc(e.Range.End),
+			}
+		}
+		// Since edit ranges are guaranteed by LSP to never overlap we can sort
+		// by last edit first and apply each edit in order
+		// Perhaps in the future we should make this more robust to a non-conforming
+		// server that sends overlapping ranges
+		sort.Slice(locs, func(i, j int) bool {
+			return locs[i].start.GreaterThan(locs[j].start)
+		})
+		for _, d := range locs {
+			if len(d.t) == 0 {
+				b.Remove(d.start, d.end)
+			} else {
+				b.Replace(d.start, d.end, d.t)
+			}
+		}
+		b.RelocateCursors()
+	}
+}
+
+func (b *Buffer) ApplyDeltas(deltas []Delta) {
+	if !b.Type.Readonly {
+		sort.Slice(deltas, func(i, j int) bool {
+			return deltas[i].Start.GreaterThan(deltas[j].Start)
+		})
+		for _, d := range deltas {
+			if len(d.Text) == 0 {
+				b.Remove(d.Start, d.End)
+			} else {
+				b.ReplaceBytes(d.Start, d.End, d.Text)
+			}
+		}
+		b.RelocateCursors()
 	}
 }
 
@@ -576,38 +635,16 @@ func (b *Buffer) RuneAt(loc Loc) rune {
 		for len(line) > 0 {
 			r, _, size := util.DecodeCharacter(line)
 			line = line[size:]
+			i++
 
 			if i == loc.X {
 				return r
 			}
-
-			i++
 		}
 	}
 	return '\n'
 }
 
-// WordAt returns the word around a given location in the buffer
-func (b *Buffer) WordAt(loc Loc) []byte {
-	if len(b.LineBytes(loc.Y)) == 0 || !util.IsWordChar(b.RuneAt(loc)) {
-		return []byte{}
-	}
-
-	start := loc
-	end := loc.Move(1, b)
-
-	for start.X > 0 && util.IsWordChar(b.RuneAt(start.Move(-1, b))) {
-		start.X--
-	}
-
-	lineLen := util.CharacterCount(b.LineBytes(loc.Y))
-	for end.X < lineLen && util.IsWordChar(b.RuneAt(end)) {
-		end.X++
-	}
-
-	return b.Substr(start, end)
-}
-
 // Modified returns if this buffer has been modified since
 // being opened
 func (b *Buffer) Modified() bool {
@@ -697,9 +734,6 @@ func (b *Buffer) UpdateRules() {
 		}
 
 		header, err = highlight.MakeHeaderYaml(data)
-		if err != nil {
-			screen.TermMessage("Error parsing header for syntax file " + f.Name() + ": " + err.Error())
-		}
 		file, err := highlight.ParseFile(data)
 		if err != nil {
 			screen.TermMessage("Error parsing syntax file " + f.Name() + ": " + err.Error())
@@ -1075,9 +1109,9 @@ func (b *Buffer) Retab() {
 		ws := util.GetLeadingWhitespace(l)
 		if len(ws) != 0 {
 			if toSpaces {
-				ws = bytes.ReplaceAll(ws, []byte{'\t'}, bytes.Repeat([]byte{' '}, tabsize))
+				ws = bytes.Replace(ws, []byte{'\t'}, bytes.Repeat([]byte{' '}, tabsize), -1)
 			} else {
-				ws = bytes.ReplaceAll(ws, bytes.Repeat([]byte{' '}, tabsize), []byte{'\t'})
+				ws = bytes.Replace(ws, bytes.Repeat([]byte{' '}, tabsize), []byte{'\t'}, -1)
 			}
 		}
 
@@ -1220,47 +1254,6 @@ func (b *Buffer) DiffStatus(lineN int) DiffStatus {
 	return b.diff[lineN]
 }
 
-// FindNextDiffLine returns the line number of the next block of diffs.
-// If `startLine` is already in a block of diffs, lines in that block are skipped.
-func (b *Buffer) FindNextDiffLine(startLine int, forward bool) (int, error) {
-	if b.diff == nil {
-		return 0, errors.New("no diff data")
-	}
-	startStatus, ok := b.diff[startLine]
-	if !ok {
-		startStatus = DSUnchanged
-	}
-	curLine := startLine
-	for {
-		curStatus, ok := b.diff[curLine]
-		if !ok {
-			curStatus = DSUnchanged
-		}
-		if curLine < 0 || curLine > b.LinesNum() {
-			return 0, errors.New("no next diff hunk")
-		}
-		if curStatus != startStatus {
-			if startStatus != DSUnchanged && curStatus == DSUnchanged {
-				// Skip over the block of unchanged text
-				startStatus = DSUnchanged
-			} else {
-				return curLine, nil
-			}
-		}
-		if forward {
-			curLine++
-		} else {
-			curLine--
-		}
-	}
-}
-
-// SearchMatch returns true if the given location is within a match of the last search.
-// It is used for search highlighting
-func (b *Buffer) SearchMatch(pos Loc) bool {
-	return b.LineArray.SearchMatch(b, pos)
-}
-
 // WriteLog writes a string to the log buffer
 func WriteLog(s string) {
 	LogBuf.EventHandler.Insert(LogBuf.End(), s)

internal/buffer/cursor.go

@@ -67,10 +67,6 @@ func (c *Cursor) GotoLoc(l Loc) {
 
 // GetVisualX returns the x value of the cursor in visual spaces
 func (c *Cursor) GetVisualX() int {
-	if c.buf.GetVisualX != nil {
-		return c.buf.GetVisualX(c.Loc)
-	}
-
 	if c.X <= 0 {
 		c.X = 0
 		return 0

internal/buffer/eventhandler.go

@@ -2,6 +2,7 @@ package buffer
 
 import (
 	"bytes"
+	"log"
 	"time"
 
 	dmp "github.com/sergi/go-diff/diffmatchpatch"
@@ -52,6 +53,7 @@ func (eh *EventHandler) DoTextEvent(t *TextEvent, useUndo bool) {
 	}
 
 	if len(t.Deltas) != 1 {
+		log.Println("Multiple deltas not supported")
 		return
 	}
 
@@ -230,6 +232,12 @@ func (eh *EventHandler) Replace(start, end Loc, replace string) {
 	eh.Insert(start, replace)
 }
 
+// ReplaceBytes deletes from start to end and replaces it with the given string
+func (eh *EventHandler) ReplaceBytes(start, end Loc, replace []byte) {
+	eh.Remove(start, end)
+	eh.InsertBytes(start, replace)
+}
+
 // Execute a textevent and add it to the undo stack
 func (eh *EventHandler) Execute(t *TextEvent) {
 	if eh.RedoStack.Len() > 0 {
@@ -237,7 +245,7 @@ func (eh *EventHandler) Execute(t *TextEvent) {
 	}
 	eh.UndoStack.Push(t)
 
-	b, err := config.RunPluginFnBool(nil, "onBeforeTextEvent", luar.New(ulua.L, eh.buf), luar.New(ulua.L, t))
+	b, err := config.RunPluginFnBool("onBeforeTextEvent", luar.New(ulua.L, eh.buf), luar.New(ulua.L, t))
 	if err != nil {
 		screen.TermMessage(err)
 	}

internal/buffer/line_array.go

@@ -32,15 +32,6 @@ func runeToByteIndex(n int, txt []byte) int {
 	return count
 }
 
-// A searchState contains the search match info for a single line
-type searchState struct {
-	search     string
-	useRegex   bool
-	ignorecase bool
-	match      [][2]int
-	done       bool
-}
-
 // 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 {
@@ -50,14 +41,6 @@ type Line struct {
 	match       highlight.LineMatch
 	rehighlight bool
 	lock        sync.Mutex
-
-	// The search states for the line, used for highlighting of search matches,
-	// separately from the syntax highlighting.
-	// A map is used because the line array may be shared between multiple buffers
-	// (multiple instances of the same file opened in different edit panes)
-	// which have distinct searches, so in the general case there are multiple
-	// searches per a line, one search per a Buffer containing this line.
-	search map[*Buffer]*searchState
 }
 
 const (
@@ -147,7 +130,7 @@ func NewLineArray(size uint64, endings FileFormat, reader io.Reader) *LineArray
 		if err != nil {
 			if err == io.EOF {
 				la.lines = Append(la.lines, Line{
-					data:        data,
+					data:        data[:],
 					state:       nil,
 					match:       nil,
 					rehighlight: false,
@@ -373,79 +356,3 @@ func (la *LineArray) SetRehighlight(lineN int, on bool) {
 	defer la.lines[lineN].lock.Unlock()
 	la.lines[lineN].rehighlight = on
 }
-
-// SearchMatch returns true if the location `pos` is within a match
-// of the last search for the buffer `b`.
-// It is used for efficient highlighting of search matches (separately
-// from the syntax highlighting).
-// SearchMatch searches for the matches if it is called first time
-// for the given line or if the line was modified. Otherwise the
-// previously found matches are used.
-//
-// The buffer `b` needs to be passed because the line array may be shared
-// between multiple buffers (multiple instances of the same file opened
-// in different edit panes) which have distinct searches, so SearchMatch
-// needs to know which search to match against.
-func (la *LineArray) SearchMatch(b *Buffer, pos Loc) bool {
-	if b.LastSearch == "" {
-		return false
-	}
-
-	lineN := pos.Y
-	if la.lines[lineN].search == nil {
-		la.lines[lineN].search = make(map[*Buffer]*searchState)
-	}
-	s, ok := la.lines[lineN].search[b]
-	if !ok {
-		// Note: here is a small harmless leak: when the buffer `b` is closed,
-		// `s` is not deleted from the map. It means that the buffer
-		// will not be garbage-collected until the line array is garbage-collected,
-		// i.e. until all the buffers sharing this file are closed.
-		s = new(searchState)
-		la.lines[lineN].search[b] = s
-	}
-	if !ok || s.search != b.LastSearch || s.useRegex != b.LastSearchRegex ||
-		s.ignorecase != b.Settings["ignorecase"].(bool) {
-		s.search = b.LastSearch
-		s.useRegex = b.LastSearchRegex
-		s.ignorecase = b.Settings["ignorecase"].(bool)
-		s.done = false
-	}
-
-	if !s.done {
-		s.match = nil
-		start := Loc{0, lineN}
-		end := Loc{util.CharacterCount(la.lines[lineN].data), lineN}
-		for start.X < end.X {
-			m, found, _ := b.FindNext(b.LastSearch, start, end, start, true, b.LastSearchRegex)
-			if !found {
-				break
-			}
-			s.match = append(s.match, [2]int{m[0].X, m[1].X})
-
-			start.X = m[1].X
-			if m[1].X == m[0].X {
-				start.X = m[1].X + 1
-			}
-		}
-
-		s.done = true
-	}
-
-	for _, m := range s.match {
-		if pos.X >= m[0] && pos.X < m[1] {
-			return true
-		}
-	}
-	return false
-}
-
-// invalidateSearchMatches marks search matches for the given line as outdated.
-// It is called when the line is modified.
-func (la *LineArray) invalidateSearchMatches(lineN int) {
-	if la.lines[lineN].search != nil {
-		for _, s := range la.lines[lineN].search {
-			s.done = false
-		}
-	}
-}

internal/buffer/loc.go

@@ -2,6 +2,7 @@ package buffer
 
 import (
 	"github.com/zyedidia/micro/v2/internal/util"
+	"go.lsp.dev/protocol"
 )
 
 // Loc stores a location
@@ -47,6 +48,11 @@ func (l Loc) LessEqual(b Loc) bool {
 	return l == b
 }
 
+// Equal returns true if two locs are equal
+func (l Loc) Equal(b Loc) bool {
+	return l.Y == b.Y && l.X == b.X
+}
+
 // The following functions require a buffer to know where newlines are
 
 // Diff returns the distance between two locations
@@ -146,3 +152,10 @@ func clamp(pos Loc, la *LineArray) Loc {
 	}
 	return pos
 }
+
+func toLoc(r protocol.Position) Loc {
+	return Loc{
+		X: int(r.Character),
+		Y: int(r.Line),
+	}
+}

internal/buffer/message.go

@@ -2,7 +2,7 @@ package buffer
 
 import (
 	"github.com/zyedidia/micro/v2/internal/config"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type MsgType int
@@ -82,13 +82,3 @@ func (b *Buffer) ClearMessages(owner string) {
 func (b *Buffer) ClearAllMessages() {
 	b.Messages = make([]*Message, 0)
 }
-
-type Messager interface {
-	Message(msg ...interface{})
-}
-
-var prompt Messager
-
-func SetMessager(m Messager) {
-	prompt = m
-}

internal/buffer/save.go

@@ -29,11 +29,9 @@ const LargeFileThreshold = 50000
 // closed afterwards.
 func overwriteFile(name string, enc encoding.Encoding, fn func(io.Writer) error, withSudo bool) (err error) {
 	var writeCloser io.WriteCloser
-	var screenb bool
-	var cmd *exec.Cmd
 
 	if withSudo {
-		cmd = exec.Command(config.GlobalSettings["sucmd"].(string), "dd", "bs=4k", "of="+name)
+		cmd := exec.Command(config.GlobalSettings["sucmd"].(string), "dd", "bs=4k", "of="+name)
 
 		if writeCloser, err = cmd.StdinPipe(); err != nil {
 			return
@@ -46,42 +44,23 @@ func overwriteFile(name string, enc encoding.Encoding, fn func(io.Writer) error,
 			cmd.Process.Kill()
 		}()
 
-		screenb = screen.TempFini()
-		// need to start the process now, otherwise when we flush the file
-		// contents to its stdin it might hang because the kernel's pipe size
-		// is too small to handle the full file contents all at once
-		if e := cmd.Start(); e != nil && err == nil {
-			return err
-		}
+		defer func() {
+			screenb := screen.TempFini()
+			if e := cmd.Run(); e != nil && err == nil {
+				err = e
+			}
+			screen.TempStart(screenb)
+		}()
 	} else if writeCloser, err = os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644); err != nil {
 		return
 	}
 
 	w := bufio.NewWriter(transform.NewWriter(writeCloser, enc.NewEncoder()))
 	err = fn(w)
+	w.Flush()
 
-	if err2 := w.Flush(); err2 != nil && err == nil {
-		err = err2
-	}
-	// Call Sync() on the file to make sure the content is safely on disk.
-	// Does not work with sudo as we don't have direct access to the file.
-	if !withSudo {
-		f := writeCloser.(*os.File)
-		if err2 := f.Sync(); err2 != nil && err == nil {
-			err = err2
-		}
-	}
-	if err2 := writeCloser.Close(); err2 != nil && err == nil {
-		err = err2
-	}
-
-	if withSudo {
-		// wait for dd to finish and restart the screen if we used sudo
-		err := cmd.Wait()
-		if err != nil {
-			return err
-		}
-		screen.TempStart(screenb)
+	if e := writeCloser.Close(); e != nil && err == nil {
+		err = e
 	}
 
 	return
@@ -130,7 +109,7 @@ func (b *Buffer) saveToFile(filename string, withSudo bool) error {
 
 	if b.Settings["eofnewline"].(bool) {
 		end := b.End()
-		if b.RuneAt(Loc{end.X - 1, end.Y}) != '\n' {
+		if b.RuneAt(Loc{end.X, end.Y}) != '\n' {
 			b.insert(end, []byte{'\n'})
 		}
 	}
@@ -216,5 +195,10 @@ func (b *Buffer) saveToFile(filename string, withSudo bool) error {
 	b.AbsPath = absPath
 	b.isModified = false
 	b.UpdateRules()
+
+	if b.HasLSP() {
+		b.Server.DidSave(b.AbsPath)
+	}
+
 	return err
 }

internal/buffer/search.go

@@ -91,10 +91,9 @@ func (b *Buffer) findUp(r *regexp.Regexp, start, end Loc) ([2]Loc, bool) {
 			l = util.SliceStart(l, end.X)
 		}
 
-		allMatches := r.FindAllIndex(l, -1)
+		match := r.FindIndex(l)
 
-		if allMatches != nil {
-			match := allMatches[len(allMatches)-1]
+		if match != nil {
 			start := Loc{charpos + util.RunePos(l, match[0]), i}
 			end := Loc{charpos + util.RunePos(l, match[1]), i}
 			return [2]Loc{start, end}, true

internal/buffer/serialize.go

@@ -51,8 +51,8 @@ func (b *Buffer) Unserialize() error {
 		return nil
 	}
 	file, err := os.Open(filepath.Join(config.ConfigDir, "buffers", util.EscapePath(b.AbsPath)))
+	defer file.Close()
 	if err == nil {
-		defer file.Close()
 		var buffer SerializedBuffer
 		decoder := gob.NewDecoder(file)
 		err = decoder.Decode(&buffer)

internal/buffer/settings.go

@@ -20,16 +20,6 @@ func (b *Buffer) SetOptionNative(option string, nativeValue interface{}) error {
 	} else if option == "statusline" {
 		screen.Redraw()
 	} else if option == "filetype" {
-		config.InitRuntimeFiles()
-		err := config.ReadSettings()
-		if err != nil {
-			screen.TermMessage(err)
-		}
-		err = config.InitGlobalSettings()
-		if err != nil {
-			screen.TermMessage(err)
-		}
-		config.InitLocalSettings(b.Settings, b.Path)
 		b.UpdateRules()
 	} else if option == "fileformat" {
 		switch b.Settings["fileformat"].(string) {
@@ -49,35 +39,12 @@ func (b *Buffer) SetOptionNative(option string, nativeValue interface{}) error {
 		b.isModified = true
 	} else if option == "readonly" && b.Type.Kind == BTDefault.Kind {
 		b.Type.Readonly = nativeValue.(bool)
-	} else if option == "hlsearch" {
-		for _, buf := range OpenBuffers {
-			if b.SharedBuffer == buf.SharedBuffer {
-				buf.HighlightSearch = nativeValue.(bool)
-			}
+	} else if option == "lsp" && b.Type.Kind == BTDefault.Kind {
+		if nativeValue.(bool) && !b.HasLSP() {
+			b.lspInit()
+		} else if b.HasLSP() {
+			b.Server.Shutdown()
 		}
-	} else {
-		for _, pl := range config.Plugins {
-			if option == pl.Name {
-				if nativeValue.(bool) {
-					if !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)
-					}
-				}
-			}
-		}
- 	}
-
-	if b.OptionCallback != nil {
-		b.OptionCallback(option, nativeValue)
 	}
 
 	return nil

internal/clipboard/clipboard.go

@@ -3,7 +3,7 @@ package clipboard
 import (
 	"errors"
 
-	"github.com/zyedidia/clipper"
+	"github.com/zyedidia/clipboard"
 )
 
 type Method int
@@ -35,22 +35,12 @@ const (
 	PrimaryReg = -2
 )
 
-var clipboard clipper.Clipboard
-
 // Initialize attempts to initialize the clipboard using the given method
 func Initialize(m Method) error {
 	var err error
 	switch m {
 	case External:
-		clips := make([]clipper.Clipboard, 0, len(clipper.Clipboards)+1)
-		clips = append(clips, &clipper.Custom{
-			Name: "micro-clip",
-		})
-		clips = append(clips, clipper.Clipboards...)
-		clipboard, err = clipper.GetClipboard(clips...)
-	}
-	if err != nil {
-		CurrentMethod = Internal
+		err = clipboard.Initialize()
 	}
 	return err
 }
@@ -111,11 +101,9 @@ func read(r Register, m Method) (string, error) {
 	case External:
 		switch r {
 		case ClipboardReg:
-			b, e := clipboard.ReadAll(clipper.RegClipboard)
-			return string(b), e
+			return clipboard.ReadAll("clipboard")
 		case PrimaryReg:
-			b, e := clipboard.ReadAll(clipper.RegPrimary)
-			return string(b), e
+			return clipboard.ReadAll("primary")
 		default:
 			return internal.read(r), nil
 		}
@@ -141,9 +129,9 @@ func write(text string, r Register, m Method) error {
 	case External:
 		switch r {
 		case ClipboardReg:
-			return clipboard.WriteAll(clipper.RegClipboard, []byte(text))
+			return clipboard.WriteAll(text, "clipboard")
 		case PrimaryReg:
-			return clipboard.WriteAll(clipper.RegPrimary, []byte(text))
+			return clipboard.WriteAll(text, "primary")
 		default:
 			internal.write(text, r)
 		}

internal/clipboard/terminal.go

@@ -5,7 +5,7 @@ import (
 	"time"
 
 	"github.com/zyedidia/micro/v2/internal/screen"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type terminalClipboard struct{}

internal/config/autosave.go

@@ -31,13 +31,14 @@ func GetAutoTime() int {
 func StartAutoSave() {
 	go func() {
 		for {
-			autolock.Lock()
-			a := autotime
-			autolock.Unlock()
-			if a < 1 {
+			if autotime < 1 {
+				break
+			}
+			time.Sleep(time.Duration(autotime) * time.Second)
+			// it's possible autotime was changed while sleeping
+			if autotime < 1 {
 				break
 			}
-			time.Sleep(time.Duration(a) * time.Second)
 			Autosave <- true
 		}
 	}()

internal/config/colorscheme.go

@@ -6,13 +6,13 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
-// DefStyle is Micro's default style
+// Micro's default style
 var DefStyle tcell.Style = tcell.StyleDefault
 
-// Colorscheme is the current colorscheme
+// The current colorscheme
 var Colorscheme map[string]tcell.Style
 
 // GetColor takes in a syntax group and returns the colorscheme's style for that group
@@ -121,7 +121,8 @@ func ParseColorscheme(text string) (map[string]tcell.Style, error) {
 func StringToStyle(str string) tcell.Style {
 	var fg, bg string
 	spaceSplit := strings.Split(str, " ")
-	split := strings.Split(spaceSplit[len(spaceSplit)-1], ",")
+	var split []string
+	split = strings.Split(spaceSplit[len(spaceSplit)-1], ",")
 	if len(split) > 1 {
 		fg, bg = split[0], split[1]
 	} else {
@@ -131,22 +132,15 @@ func StringToStyle(str string) tcell.Style {
 	bg = strings.TrimSpace(bg)
 
 	var fgColor, bgColor tcell.Color
-	var ok bool
-	if fg == "" || fg == "default" {
+	if fg == "" {
 		fgColor, _, _ = DefStyle.Decompose()
 	} else {
-		fgColor, ok = StringToColor(fg)
-		if !ok {
-			fgColor, _, _ = DefStyle.Decompose()
-		}
+		fgColor = StringToColor(fg)
 	}
-	if bg == "" || bg == "default" {
+	if bg == "" {
 		_, bgColor, _ = DefStyle.Decompose()
 	} else {
-		bgColor, ok = StringToColor(bg)
-		if !ok {
-			_, bgColor, _ = DefStyle.Decompose()
-		}
+		bgColor = StringToColor(bg)
 	}
 
 	style := DefStyle.Foreground(fgColor).Background(bgColor)
@@ -167,59 +161,95 @@ func StringToStyle(str string) tcell.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, bool) {
+func StringToColor(str string) tcell.Color {
 	switch str {
 	case "black":
-		return tcell.ColorBlack, true
+		return tcell.ColorBlack
 	case "red":
-		return tcell.ColorMaroon, true
+		return tcell.ColorMaroon
 	case "green":
-		return tcell.ColorGreen, true
+		return tcell.ColorGreen
 	case "yellow":
-		return tcell.ColorOlive, true
+		return tcell.ColorOlive
 	case "blue":
-		return tcell.ColorNavy, true
+		return tcell.ColorNavy
 	case "magenta":
-		return tcell.ColorPurple, true
+		return tcell.ColorPurple
 	case "cyan":
-		return tcell.ColorTeal, true
+		return tcell.ColorTeal
 	case "white":
-		return tcell.ColorSilver, true
+		return tcell.ColorSilver
 	case "brightblack", "lightblack":
-		return tcell.ColorGray, true
+		return tcell.ColorGray
 	case "brightred", "lightred":
-		return tcell.ColorRed, true
+		return tcell.ColorRed
 	case "brightgreen", "lightgreen":
-		return tcell.ColorLime, true
+		return tcell.ColorLime
 	case "brightyellow", "lightyellow":
-		return tcell.ColorYellow, true
+		return tcell.ColorYellow
 	case "brightblue", "lightblue":
-		return tcell.ColorBlue, true
+		return tcell.ColorBlue
 	case "brightmagenta", "lightmagenta":
-		return tcell.ColorFuchsia, true
+		return tcell.ColorFuchsia
 	case "brightcyan", "lightcyan":
-		return tcell.ColorAqua, true
+		return tcell.ColorAqua
 	case "brightwhite", "lightwhite":
-		return tcell.ColorWhite, true
+		return tcell.ColorWhite
 	case "default":
-		return tcell.ColorDefault, true
+		return tcell.ColorDefault
 	default:
 		// Check if this is a 256 color
 		if num, err := strconv.Atoi(str); err == nil {
-			return GetColor256(num), true
+			return GetColor256(num)
 		}
-		// Check if this is a truecolor hex value
-		if len(str) == 7 && str[0] == '#' {
-			return tcell.GetColor(str), true
-		}
-		return tcell.ColorDefault, false
+		// 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 {
-	if color == 0 {
-		return tcell.ColorDefault
+	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,
 	}
-	return tcell.PaletteColor(color)
+
+	if color >= 0 && color < len(colors) {
+		return colors[color]
+	}
+
+	return tcell.ColorDefault
 }

internal/config/colorscheme_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 func TestSimpleStringToStyle(t *testing.T) {

internal/config/globals.go

@@ -4,12 +4,8 @@ const (
 	DoubleClickThreshold = 400 // How many milliseconds to wait before a second click is not a double click
 )
 
-var Bindings map[string]map[string]string
+var Bindings map[string]string
 
 func init() {
-	Bindings = map[string]map[string]string{
-		"command":  make(map[string]string),
-		"buffer":   make(map[string]string),
-		"terminal": make(map[string]string),
-	}
+	Bindings = make(map[string]string)
 }

internal/config/plugin.go

@@ -28,7 +28,7 @@ func LoadAllPlugins() error {
 func RunPluginFn(fn string, args ...lua.LValue) error {
 	var reterr error
 	for _, p := range Plugins {
-		if !p.IsLoaded() {
+		if !p.IsEnabled() {
 			continue
 		}
 		_, err := p.Call(fn, args...)
@@ -42,11 +42,11 @@ func RunPluginFn(fn string, args ...lua.LValue) error {
 // RunPluginFnBool runs a function in all plugins and returns
 // false if any one of them returned false
 // also returns an error if any of the plugins had an error
-func RunPluginFnBool(settings map[string]interface{}, fn string, args ...lua.LValue) (bool, error) {
+func RunPluginFnBool(fn string, args ...lua.LValue) (bool, error) {
 	var reterr error
 	retbool := true
 	for _, p := range Plugins {
-		if !p.IsLoaded() || (settings != nil && settings[p.Name] == false) {
+		if !p.IsEnabled() {
 			continue
 		}
 		val, err := p.Call(fn, args...)
@@ -71,11 +71,11 @@ type Plugin struct {
 	Info    *PluginInfo   // json file containing info
 	Srcs    []RuntimeFile // lua files
 	Loaded  bool
-	Default bool          // pre-installed plugin
+	Default bool // pre-installed plugin
 }
 
-// IsLoaded returns if a plugin is enabled
-func (p *Plugin) IsLoaded() bool {
+// IsEnabled returns if a plugin is enabled
+func (p *Plugin) IsEnabled() bool {
 	if v, ok := GlobalSettings[p.Name]; ok {
 		return v.(bool) && p.Loaded
 	}
@@ -101,7 +101,7 @@ func (p *Plugin) Load() error {
 		}
 	}
 	p.Loaded = true
-	RegisterCommonOption(p.Name, true)
+	RegisterGlobalOption(p.Name, true)
 	return nil
 }
 
@@ -133,7 +133,7 @@ func (p *Plugin) Call(fn string, args ...lua.LValue) (lua.LValue, error) {
 func FindPlugin(name string) *Plugin {
 	var pl *Plugin
 	for _, p := range Plugins {
-		if !p.IsLoaded() {
+		if !p.IsEnabled() {
 			continue
 		}
 		if p.Name == name {

internal/config/plugin_installer.go

@@ -363,7 +363,7 @@ func GetInstalledVersions(withCore bool) PluginVersions {
 	}
 
 	for _, p := range Plugins {
-		if !p.IsLoaded() {
+		if !p.IsEnabled() {
 			continue
 		}
 		version := GetInstalledPluginVersion(p.Name)
@@ -479,7 +479,9 @@ func (pl PluginPackages) GetAllVersions(name string) PluginVersions {
 	result := make(PluginVersions, 0)
 	p := pl.Get(name)
 	if p != nil {
-		result = append(result, p.Versions...)
+		for _, v := range p.Versions {
+			result = append(result, v)
+		}
 	}
 	return result
 }
@@ -572,7 +574,7 @@ func (pv PluginVersions) install(out io.Writer) {
 // UninstallPlugin deletes the plugin folder of the given plugin
 func UninstallPlugin(out io.Writer, name string) {
 	for _, p := range Plugins {
-		if !p.IsLoaded() {
+		if !p.IsEnabled() {
 			continue
 		}
 		if p.Name == name {
@@ -605,7 +607,7 @@ func UpdatePlugins(out io.Writer, plugins []string) {
 	// if no plugins are specified, update all installed plugins.
 	if len(plugins) == 0 {
 		for _, p := range Plugins {
-			if !p.IsLoaded() || p.Default {
+			if !p.IsEnabled() || p.Default {
 				continue
 			}
 			plugins = append(plugins, p.Name)

internal/config/rtfiles.go

@@ -9,8 +9,6 @@ import (
 	"path/filepath"
 	"regexp"
 	"strings"
-
-	rt "github.com/zyedidia/micro/v2/runtime"
 )
 
 const (
@@ -92,7 +90,7 @@ func (af assetFile) Name() string {
 }
 
 func (af assetFile) Data() ([]byte, error) {
-	return rt.Asset(string(af))
+	return Asset(string(af))
 }
 
 func (nf namedFile) Name() string {
@@ -125,7 +123,7 @@ func AddRuntimeFilesFromDirectory(fileType RTFiletype, directory, pattern string
 // AddRuntimeFilesFromAssets registers each file from the given asset-directory for
 // the filetype which matches the file-pattern
 func AddRuntimeFilesFromAssets(fileType RTFiletype, directory, pattern string) {
-	files, err := rt.AssetDir(directory)
+	files, err := AssetDir(directory)
 	if err != nil {
 		return
 	}
@@ -186,9 +184,8 @@ func InitRuntimeFiles() {
 	isID := regexp.MustCompile(`^[_A-Za-z0-9]+$`).MatchString
 
 	for _, d := range files {
-		plugpath := filepath.Join(plugdir, d.Name())
-		if stat, err := os.Stat(plugpath); err == nil && stat.IsDir() {
-			srcs, _ := ioutil.ReadDir(plugpath)
+		if d.IsDir() {
+			srcs, _ := ioutil.ReadDir(filepath.Join(plugdir, d.Name()))
 			p := new(Plugin)
 			p.Name = d.Name()
 			p.DirName = d.Name()
@@ -217,9 +214,9 @@ func InitRuntimeFiles() {
 	}
 
 	plugdir = filepath.Join("runtime", "plugins")
-	if files, err := rt.AssetDir(plugdir); err == nil {
+	if files, err := AssetDir(plugdir); err == nil {
 		for _, d := range files {
-			if srcs, err := rt.AssetDir(filepath.Join(plugdir, d)); err == nil {
+			if srcs, err := AssetDir(filepath.Join(plugdir, d)); err == nil {
 				p := new(Plugin)
 				p.Name = d
 				p.DirName = d
@@ -228,7 +225,7 @@ func InitRuntimeFiles() {
 					if strings.HasSuffix(f, ".lua") {
 						p.Srcs = append(p.Srcs, assetFile(filepath.Join(plugdir, d, f)))
 					} else if strings.HasSuffix(f, ".json") {
-						data, err := rt.Asset(filepath.Join(plugdir, d, f))
+						data, err := Asset(filepath.Join(plugdir, d, f))
 						if err != nil {
 							continue
 						}

internal/config/settings.go

@@ -51,7 +51,6 @@ var optionValidators = map[string]optionValidator{
 	"colorcolumn":  validateNonNegativeValue,
 	"fileformat":   validateLineEnding,
 	"encoding":     validateEncoding,
-	"multiopen":    validateMultiOpen,
 }
 
 func ReadSettings() error {
@@ -105,7 +104,7 @@ func InitGlobalSettings() error {
 	for k, v := range parsedSettings {
 		if !strings.HasPrefix(reflect.TypeOf(v).String(), "map") {
 			if _, ok := GlobalSettings[k]; ok && !verifySetting(k, reflect.TypeOf(v), reflect.TypeOf(GlobalSettings[k])) {
-				err = fmt.Errorf("Global Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v), GlobalSettings[k], reflect.TypeOf(GlobalSettings[k]))
+				err = errors.New(fmt.Sprintf("Global Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v), GlobalSettings[k], reflect.TypeOf(GlobalSettings[k])))
 				continue
 			}
 
@@ -126,7 +125,7 @@ func InitLocalSettings(settings map[string]interface{}, path string) error {
 				if settings["filetype"].(string) == k[3:] {
 					for k1, v1 := range v.(map[string]interface{}) {
 						if _, ok := settings[k1]; ok && !verifySetting(k1, reflect.TypeOf(v1), reflect.TypeOf(settings[k1])) {
-							parseError = fmt.Errorf("Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v1), settings[k1], reflect.TypeOf(settings[k1]))
+							parseError = errors.New(fmt.Sprintf("Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v1), settings[k1], reflect.TypeOf(settings[k1])))
 							continue
 						}
 						settings[k1] = v1
@@ -142,7 +141,7 @@ func InitLocalSettings(settings map[string]interface{}, path string) error {
 				if g.MatchString(path) {
 					for k1, v1 := range v.(map[string]interface{}) {
 						if _, ok := settings[k1]; ok && !verifySetting(k1, reflect.TypeOf(v1), reflect.TypeOf(settings[k1])) {
-							parseError = fmt.Errorf("Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v1), settings[k1], reflect.TypeOf(settings[k1]))
+							parseError = errors.New(fmt.Sprintf("Error: setting '%s' has incorrect type (%s), using default value: %v (%s)", k, reflect.TypeOf(v1), settings[k1], reflect.TypeOf(settings[k1])))
 							continue
 						}
 						settings[k1] = v1
@@ -236,21 +235,6 @@ func RegisterGlobalOptionPlug(pl string, name string, defaultvalue interface{})
 	return RegisterGlobalOption(pl+"."+name, defaultvalue)
 }
 
-// RegisterCommonOption creates a new option
-func RegisterCommonOption(name string, defaultvalue interface{}) error {
-	if v, ok := GlobalSettings[name]; !ok {
-		defaultCommonSettings[name] = defaultvalue
-		GlobalSettings[name] = defaultvalue
-		err := WriteSettings(filepath.Join(ConfigDir, "settings.json"))
-		if err != nil {
-			return errors.New("Error writing settings.json file: " + err.Error())
-		}
-	} else {
-		defaultCommonSettings[name] = v
-	}
-	return nil
-}
-
 // RegisterGlobalOption creates a new global-only option
 func RegisterGlobalOption(name string, defaultvalue interface{}) error {
 	if v, ok := GlobalSettings[name]; !ok {
@@ -285,11 +269,10 @@ var defaultCommonSettings = map[string]interface{}{
 	"fastdirty":      false,
 	"fileformat":     "unix",
 	"filetype":       "unknown",
-	"hlsearch":       false,
-	"incsearch":      true,
-	"ignorecase":     true,
+	"ignorecase":     false,
 	"indentchar":     " ",
 	"keepautoindent": false,
+	"lsp":            true,
 	"matchbrace":     true,
 	"mkparents":      false,
 	"permbackup":     false,
@@ -314,7 +297,6 @@ var defaultCommonSettings = map[string]interface{}{
 	"tabsize":        float64(4),
 	"tabstospaces":   false,
 	"useprimary":     true,
-	"wordwrap":       false,
 }
 
 func GetInfoBarOffset() int {
@@ -346,20 +328,15 @@ var DefaultGlobalOnlySettings = map[string]interface{}{
 	"colorscheme":    "default",
 	"divchars":       "|-",
 	"divreverse":     true,
-	"fakecursor":     false,
 	"infobar":        true,
 	"keymenu":        false,
 	"mouse":          true,
-	"multiopen":      "tab",
 	"parsecursor":    false,
 	"paste":          false,
+	"savehistory":    true,
+	"sucmd":          "sudo",
 	"pluginchannels": []string{"https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json"},
 	"pluginrepos":    []string{},
-	"savehistory":    true,
-	"scrollbarchar":  "|",
-	"sucmd":          "sudo",
-	"tabhighlight":   false,
-	"tabreverse":     true,
 	"xterm":          false,
 }
 
@@ -510,19 +487,3 @@ func validateEncoding(option string, value interface{}) error {
 	_, err := htmlindex.Get(value.(string))
 	return err
 }
-
-func validateMultiOpen(option string, value interface{}) error {
-	val, ok := value.(string)
-
-	if !ok {
-		return errors.New("Expected string type for multiopen")
-	}
-
-	switch val {
-	case "tab", "hsplit", "vsplit":
-	default:
-		return errors.New(option + " must be 'tab', 'hsplit', or 'vsplit'")
-	}
-
-	return nil
-}

internal/display/bufwindow.go

@@ -8,34 +8,31 @@ import (
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/util"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
-// The BufWindow provides a way of displaying a certain section of a buffer.
+// The BufWindow provides a way of displaying a certain section
+// of a buffer
 type BufWindow struct {
 	*View
 
 	// Buffer being shown in this window
-	Buf *buffer.Buffer
+	Buf         *buffer.Buffer
+	completeBox buffer.Loc
 
 	active bool
 
 	sline *StatusLine
 
-	bufWidth         int
-	bufHeight        int
-	gutterOffset     int
-	hasMessage       bool
-	maxLineNumLength int
-	drawDivider      bool
+	gutterOffset int
+	drawStatus   bool
 }
 
 // NewBufWindow creates a new window at a location in the screen with a width and height
 func NewBufWindow(x, y, width, height int, buf *buffer.Buffer) *BufWindow {
 	w := new(BufWindow)
 	w.View = new(View)
-	w.X, w.Y, w.Width, w.Height = x, y, width, height
-	w.SetBuffer(buf)
+	w.X, w.Y, w.Width, w.Height, w.Buf = x, y, width, height, buf
 	w.active = true
 
 	w.sline = NewStatusLine(w)
@@ -43,123 +40,31 @@ func NewBufWindow(x, y, width, height int, buf *buffer.Buffer) *BufWindow {
 	return w
 }
 
-// SetBuffer sets this window's buffer.
 func (w *BufWindow) SetBuffer(b *buffer.Buffer) {
 	w.Buf = b
-	b.OptionCallback = func(option string, nativeValue interface{}) {
-		if option == "softwrap" {
-			if nativeValue.(bool) {
-				w.StartCol = 0
-			} else {
-				w.StartLine.Row = 0
-			}
-		}
-
-		if option == "softwrap" || option == "wordwrap" {
-			w.Relocate()
-			for _, c := range w.Buf.GetCursors() {
-				c.LastVisualX = c.GetVisualX()
-			}
-		}
-	}
-	b.GetVisualX = func(loc buffer.Loc) int {
-		return w.VLocFromLoc(loc).VisualX
-	}
 }
 
-// GetView gets the view.
 func (w *BufWindow) GetView() *View {
 	return w.View
 }
 
-// GetView sets the view.
 func (w *BufWindow) SetView(view *View) {
 	w.View = view
 }
 
-// Resize resizes this window.
 func (w *BufWindow) Resize(width, height int) {
 	w.Width, w.Height = width, height
-	w.updateDisplayInfo()
-
 	w.Relocate()
 }
 
-// SetActive marks the window as active.
 func (w *BufWindow) SetActive(b bool) {
 	w.active = b
 }
 
-// IsActive returns true if this window is active.
 func (w *BufWindow) IsActive() bool {
 	return w.active
 }
 
-// BufView returns the width, height and x,y location of the actual buffer.
-// It is not exactly the same as the whole window which also contains gutter,
-// ruler, scrollbar and statusline.
-func (w *BufWindow) BufView() View {
-	return View{
-		X:         w.X + w.gutterOffset,
-		Y:         w.Y,
-		Width:     w.bufWidth,
-		Height:    w.bufHeight,
-		StartLine: w.StartLine,
-		StartCol:  w.StartCol,
-	}
-}
-
-func (w *BufWindow) updateDisplayInfo() {
-	b := w.Buf
-
-	w.drawDivider = false
-	if !b.Settings["statusline"].(bool) {
-		_, h := screen.Screen.Size()
-		infoY := h
-		if config.GetGlobalOption("infobar").(bool) {
-			infoY--
-		}
-		if w.Y+w.Height != infoY {
-			w.drawDivider = true
-		}
-	}
-
-	w.bufHeight = w.Height
-	if b.Settings["statusline"].(bool) || w.drawDivider {
-		w.bufHeight--
-	}
-
-	w.hasMessage = len(b.Messages) > 0
-
-	// We need to know the string length of the largest line number
-	// so we can pad appropriately when displaying line numbers
-	w.maxLineNumLength = len(strconv.Itoa(b.LinesNum()))
-
-	w.gutterOffset = 0
-	if w.hasMessage {
-		w.gutterOffset += 2
-	}
-	if b.Settings["diffgutter"].(bool) {
-		w.gutterOffset++
-	}
-	if b.Settings["ruler"].(bool) {
-		w.gutterOffset += w.maxLineNumLength + 1
-	}
-
-	prevBufWidth := w.bufWidth
-
-	w.bufWidth = w.Width - w.gutterOffset
-	if w.Buf.Settings["scrollbar"].(bool) && w.Buf.LinesNum() > w.Height {
-		w.bufWidth--
-	}
-
-	if w.bufWidth != prevBufWidth && w.Buf.Settings["softwrap"].(bool) {
-		for _, c := range w.Buf.GetCursors() {
-			c.LastVisualX = c.GetVisualX()
-		}
-	}
-}
-
 func (w *BufWindow) getStartInfo(n, lineN int) ([]byte, int, int, *tcell.Style) {
 	tabsize := util.IntOpt(w.Buf.Settings["tabsize"])
 	width := 0
@@ -202,49 +107,63 @@ func (w *BufWindow) Clear() {
 	}
 }
 
+// Bottomline returns the line number of the lowest line in the view
+// You might think that this is obviously just v.StartLine + v.Height
+// but if softwrap is enabled things get complicated since one buffer
+// line can take up multiple lines in the view
+func (w *BufWindow) Bottomline() int {
+	if !w.Buf.Settings["softwrap"].(bool) {
+		h := w.StartLine + w.Height - 1
+		if w.drawStatus {
+			h--
+		}
+		return h
+	}
+
+	l := w.LocFromVisual(buffer.Loc{0, w.Y + w.Height})
+
+	return l.Y
+}
+
 // Relocate moves the view window so that the cursor is in view
 // This is useful if the user has scrolled far away, and then starts typing
 // Returns true if the window location is moved
 func (w *BufWindow) Relocate() bool {
 	b := w.Buf
-	height := w.bufHeight
+	// how many buffer lines are in the view
+	height := w.Bottomline() + 1 - w.StartLine
+	h := w.Height
+	if w.drawStatus {
+		h--
+	}
 	ret := false
 	activeC := w.Buf.GetActiveCursor()
+	cy := activeC.Y
 	scrollmargin := int(b.Settings["scrollmargin"].(float64))
-
-	c := w.SLocFromLoc(activeC.Loc)
-	bStart := SLoc{0, 0}
-	bEnd := w.SLocFromLoc(b.End())
-
-	if c.LessThan(w.Scroll(w.StartLine, scrollmargin)) && c.GreaterThan(w.Scroll(bStart, scrollmargin-1)) {
-		w.StartLine = w.Scroll(c, -scrollmargin)
+	if cy < w.StartLine+scrollmargin && cy > scrollmargin-1 {
+		w.StartLine = cy - scrollmargin
 		ret = true
-	} else if c.LessThan(w.StartLine) {
-		w.StartLine = c
+	} else if cy < w.StartLine {
+		w.StartLine = cy
 		ret = true
 	}
-	if c.GreaterThan(w.Scroll(w.StartLine, height-1-scrollmargin)) && c.LessEqual(w.Scroll(bEnd, -scrollmargin)) {
-		w.StartLine = w.Scroll(c, -height+1+scrollmargin)
+	if cy > w.StartLine+height-1-scrollmargin && cy < b.LinesNum()-scrollmargin {
+		w.StartLine = cy - height + 1 + scrollmargin
 		ret = true
-	} else if c.GreaterThan(w.Scroll(bEnd, -scrollmargin)) && c.GreaterThan(w.Scroll(w.StartLine, height-1)) {
-		w.StartLine = w.Scroll(bEnd, -height+1)
+	} else if cy >= b.LinesNum()-scrollmargin && cy >= height {
+		w.StartLine = b.LinesNum() - height
 		ret = true
 	}
 
 	// horizontal relocation (scrolling)
 	if !b.Settings["softwrap"].(bool) {
 		cx := activeC.GetVisualX()
-		rw := runewidth.RuneWidth(activeC.RuneUnder(activeC.X))
-		if rw == 0 {
-			rw = 1 // tab or newline
-		}
-
 		if cx < w.StartCol {
 			w.StartCol = cx
 			ret = true
 		}
-		if cx+w.gutterOffset+rw > w.StartCol+w.Width {
-			w.StartCol = cx - w.Width + w.gutterOffset + rw
+		if cx+w.gutterOffset+1 > w.StartCol+w.Width {
+			w.StartCol = cx - w.Width + w.gutterOffset + 1
 			ret = true
 		}
 	}
@@ -253,18 +172,123 @@ func (w *BufWindow) Relocate() bool {
 
 // LocFromVisual takes a visual location (x and y position) and returns the
 // position in the buffer corresponding to the visual location
+// Computing the buffer location requires essentially drawing the entire screen
+// to account for complications like softwrap, wide characters, and horizontal scrolling
 // If the requested position does not correspond to a buffer location it returns
 // the nearest position
 func (w *BufWindow) LocFromVisual(svloc buffer.Loc) buffer.Loc {
-	vx := svloc.X - w.X - w.gutterOffset
-	if vx < 0 {
-		vx = 0
+	b := w.Buf
+
+	hasMessage := len(b.Messages) > 0
+	bufHeight := w.Height
+	if w.drawStatus {
+		bufHeight--
 	}
-	vloc := VLoc{
-		SLoc:    w.Scroll(w.StartLine, svloc.Y-w.Y),
-		VisualX: vx + w.StartCol,
+
+	bufWidth := w.Width
+	if w.Buf.Settings["scrollbar"].(bool) && w.Buf.LinesNum() > w.Height {
+		bufWidth--
 	}
-	return w.LocFromVLoc(vloc)
+
+	// We need to know the string length of the largest line number
+	// so we can pad appropriately when displaying line numbers
+	maxLineNumLength := len(strconv.Itoa(b.LinesNum()))
+
+	tabsize := int(b.Settings["tabsize"].(float64))
+	softwrap := b.Settings["softwrap"].(bool)
+
+	// this represents the current draw position
+	// within the current window
+	vloc := buffer.Loc{X: 0, Y: 0}
+
+	// this represents the current draw position in the buffer (char positions)
+	bloc := buffer.Loc{X: -1, Y: w.StartLine}
+
+	for vloc.Y = 0; vloc.Y < bufHeight; vloc.Y++ {
+		vloc.X = 0
+		if hasMessage {
+			vloc.X += 2
+		}
+		if b.Settings["diffgutter"].(bool) {
+			vloc.X++
+		}
+		if b.Settings["ruler"].(bool) {
+			vloc.X += maxLineNumLength + 1
+		}
+
+		line := b.LineBytes(bloc.Y)
+		line, nColsBeforeStart, bslice := util.SliceVisualEnd(line, w.StartCol, tabsize)
+		bloc.X = bslice
+
+		draw := func() {
+			if nColsBeforeStart <= 0 {
+				vloc.X++
+			}
+			nColsBeforeStart--
+		}
+
+		totalwidth := w.StartCol - nColsBeforeStart
+
+		if svloc.X <= vloc.X+w.X && vloc.Y+w.Y == svloc.Y {
+			return bloc
+		}
+		for len(line) > 0 {
+			if vloc.X+w.X == svloc.X && vloc.Y+w.Y == svloc.Y {
+				return bloc
+			}
+
+			r, _, size := util.DecodeCharacter(line)
+			draw()
+			width := 0
+
+			switch r {
+			case '\t':
+				ts := tabsize - (totalwidth % tabsize)
+				width = ts
+			default:
+				width = runewidth.RuneWidth(r)
+			}
+
+			// Draw any extra characters either spaces for tabs or @ for incomplete wide runes
+			if width > 1 {
+				for i := 1; i < width; i++ {
+					if vloc.X+w.X == svloc.X && vloc.Y+w.Y == svloc.Y {
+						return bloc
+					}
+					draw()
+				}
+			}
+			bloc.X++
+			line = line[size:]
+
+			totalwidth += width
+
+			// If we reach the end of the window then we either stop or we wrap for softwrap
+			if vloc.X >= bufWidth {
+				if !softwrap {
+					break
+				} else {
+					vloc.Y++
+					if vloc.Y >= bufHeight {
+						break
+					}
+					vloc.X = w.gutterOffset
+				}
+			}
+		}
+		if vloc.Y+w.Y == svloc.Y {
+			return bloc
+		}
+
+		if bloc.Y+1 >= b.LinesNum() || vloc.Y+1 >= bufHeight {
+			return bloc
+		}
+
+		bloc.X = w.StartCol
+		bloc.Y++
+	}
+
+	return buffer.Loc{}
 }
 
 func (w *BufWindow) drawGutter(vloc *buffer.Loc, bloc *buffer.Loc) {
@@ -311,7 +335,7 @@ func (w *BufWindow) drawDiffGutter(backgroundStyle tcell.Style, softwrapped bool
 	vloc.X++
 }
 
-func (w *BufWindow) drawLineNum(lineNumStyle tcell.Style, softwrapped bool, vloc *buffer.Loc, bloc *buffer.Loc) {
+func (w *BufWindow) drawLineNum(lineNumStyle tcell.Style, softwrapped bool, maxLineNumLength int, vloc *buffer.Loc, bloc *buffer.Loc) {
 	cursorLine := w.Buf.GetActiveCursor().Loc.Y
 	var lineInt int
 	if w.Buf.Settings["relativeruler"] == false || cursorLine == bloc.Y {
@@ -322,7 +346,7 @@ func (w *BufWindow) drawLineNum(lineNumStyle tcell.Style, softwrapped bool, vloc
 	lineNum := strconv.Itoa(util.Abs(lineInt))
 
 	// Write the spaces before the line number if necessary
-	for i := 0; i < w.maxLineNumLength-len(lineNum); i++ {
+	for i := 0; i < maxLineNumLength-len(lineNum); i++ {
 		screen.SetContent(w.X+vloc.X, w.Y+vloc.Y, ' ', nil, lineNumStyle)
 		vloc.X++
 	}
@@ -369,7 +393,16 @@ func (w *BufWindow) displayBuffer() {
 		return
 	}
 
-	maxWidth := w.gutterOffset + w.bufWidth
+	hasMessage := len(b.Messages) > 0
+	bufHeight := w.Height
+	if w.drawStatus {
+		bufHeight--
+	}
+
+	bufWidth := w.Width
+	if w.Buf.Settings["scrollbar"].(bool) && w.Buf.LinesNum() > w.Height {
+		bufWidth--
+	}
 
 	if b.ModifiedThisFrame {
 		if b.Settings["diffgutter"].(bool) {
@@ -430,27 +463,25 @@ func (w *BufWindow) displayBuffer() {
 		}
 	}
 
-	softwrap := b.Settings["softwrap"].(bool)
-	wordwrap := softwrap && b.Settings["wordwrap"].(bool)
+	// We need to know the string length of the largest line number
+	// so we can pad appropriately when displaying line numbers
+	maxLineNumLength := len(strconv.Itoa(b.LinesNum()))
 
+	softwrap := b.Settings["softwrap"].(bool)
 	tabsize := util.IntOpt(b.Settings["tabsize"])
 	colorcolumn := util.IntOpt(b.Settings["colorcolumn"])
 
 	// this represents the current draw position
 	// within the current window
 	vloc := buffer.Loc{X: 0, Y: 0}
-	if softwrap {
-		// the start line may be partially out of the current window
-		vloc.Y = -w.StartLine.Row
-	}
 
 	// this represents the current draw position in the buffer (char positions)
-	bloc := buffer.Loc{X: -1, Y: w.StartLine.Line}
+	bloc := buffer.Loc{X: -1, Y: w.StartLine}
 
 	cursors := b.GetCursors()
 
 	curStyle := config.DefStyle
-	for ; vloc.Y < w.bufHeight; vloc.Y++ {
+	for vloc.Y = 0; vloc.Y < bufHeight; vloc.Y++ {
 		vloc.X = 0
 
 		currentLine := false
@@ -466,104 +497,100 @@ func (w *BufWindow) displayBuffer() {
 			s = curNumStyle
 		}
 
-		if vloc.Y >= 0 {
-			if w.hasMessage {
-				w.drawGutter(&vloc, &bloc)
-			}
-
-			if b.Settings["diffgutter"].(bool) {
-				w.drawDiffGutter(s, false, &vloc, &bloc)
-			}
-
-			if b.Settings["ruler"].(bool) {
-				w.drawLineNum(s, false, &vloc, &bloc)
-			}
-		} else {
-			vloc.X = w.gutterOffset
+		if hasMessage {
+			w.drawGutter(&vloc, &bloc)
 		}
 
+		if b.Settings["diffgutter"].(bool) {
+			w.drawDiffGutter(s, false, &vloc, &bloc)
+		}
+
+		if b.Settings["ruler"].(bool) {
+			w.drawLineNum(s, false, maxLineNumLength, &vloc, &bloc)
+		}
+
+		w.gutterOffset = vloc.X
+
 		line, nColsBeforeStart, bslice, startStyle := w.getStartInfo(w.StartCol, bloc.Y)
 		if startStyle != nil {
 			curStyle = *startStyle
 		}
 		bloc.X = bslice
 
-		draw := func(r rune, combc []rune, style tcell.Style, highlight bool, showcursor bool) {
-			if nColsBeforeStart <= 0 && vloc.Y >= 0 {
-				if highlight {
-					if w.Buf.HighlightSearch && w.Buf.SearchMatch(bloc) {
+		draw := func(r rune, combc []rune, style tcell.Style, showcursor bool) {
+			if nColsBeforeStart <= 0 {
+				_, origBg, _ := style.Decompose()
+				_, defBg, _ := config.DefStyle.Decompose()
+
+				// syntax highlighting with non-default background takes precedence
+				// over cursor-line and color-column
+				dontOverrideBackground := origBg != defBg
+
+				for _, c := range cursors {
+					if c.HasSelection() &&
+						(bloc.GreaterEqual(c.CurSelection[0]) && bloc.LessThan(c.CurSelection[1]) ||
+							bloc.LessThan(c.CurSelection[0]) && bloc.GreaterEqual(c.CurSelection[1])) {
+						// The current character is selected
 						style = config.DefStyle.Reverse(true)
-						if s, ok := config.Colorscheme["hlsearch"]; ok {
+
+						if s, ok := config.Colorscheme["selection"]; ok {
 							style = s
 						}
 					}
 
-					_, origBg, _ := style.Decompose()
-					_, defBg, _ := config.DefStyle.Decompose()
-
-					// syntax or hlsearch highlighting with non-default background takes precedence
-					// over cursor-line and color-column
-					dontOverrideBackground := origBg != defBg
-
-					for _, c := range cursors {
-						if c.HasSelection() &&
-							(bloc.GreaterEqual(c.CurSelection[0]) && bloc.LessThan(c.CurSelection[1]) ||
-								bloc.LessThan(c.CurSelection[0]) && bloc.GreaterEqual(c.CurSelection[1])) {
-							// The current character is selected
-							style = config.DefStyle.Reverse(true)
-
-							if s, ok := config.Colorscheme["selection"]; ok {
-								style = s
-							}
-						}
-
-						if b.Settings["cursorline"].(bool) && w.active && !dontOverrideBackground &&
-							!c.HasSelection() && c.Y == bloc.Y {
-							if s, ok := config.Colorscheme["cursor-line"]; ok {
-								fg, _, _ := s.Decompose()
-								style = style.Background(fg)
-							}
-						}
-					}
-
-					for _, m := range b.Messages {
-						if bloc.GreaterEqual(m.Start) && bloc.LessThan(m.End) ||
-							bloc.LessThan(m.End) && bloc.GreaterEqual(m.Start) {
-							style = style.Underline(true)
-							break
-						}
-					}
-
-					if r == '\t' {
-						indentrunes := []rune(b.Settings["indentchar"].(string))
-						// if empty indentchar settings, use space
-						if len(indentrunes) == 0 {
-							indentrunes = []rune{' '}
-						}
-
-						r = indentrunes[0]
-						if s, ok := config.Colorscheme["indent-char"]; ok && r != ' ' {
-							fg, _, _ := s.Decompose()
-							style = style.Foreground(fg)
-						}
-					}
-
-					if s, ok := config.Colorscheme["color-column"]; ok {
-						if colorcolumn != 0 && vloc.X-w.gutterOffset+w.StartCol == colorcolumn && !dontOverrideBackground {
+					if b.Settings["cursorline"].(bool) && w.active && !dontOverrideBackground &&
+						!c.HasSelection() && c.Y == bloc.Y {
+						if s, ok := config.Colorscheme["cursor-line"]; ok {
 							fg, _, _ := s.Decompose()
 							style = style.Background(fg)
 						}
 					}
+				}
 
-					for _, mb := range matchingBraces {
-						if mb.X == bloc.X && mb.Y == bloc.Y {
-							style = style.Underline(true)
-						}
+				for _, m := range b.Messages {
+					if bloc.GreaterEqual(m.Start) && bloc.LessThan(m.End) ||
+						bloc.LessThan(m.End) && bloc.GreaterEqual(m.Start) {
+						style = style.Underline(true)
+						break
+					}
+				}
+
+				if r == '\t' {
+					indentrunes := []rune(b.Settings["indentchar"].(string))
+					// if empty indentchar settings, use space
+					if indentrunes == nil || len(indentrunes) == 0 {
+						indentrunes = []rune{' '}
+					}
+
+					r = indentrunes[0]
+					if s, ok := config.Colorscheme["indent-char"]; ok && r != ' ' {
+						fg, _, _ := s.Decompose()
+						style = style.Foreground(fg)
+					}
+				}
+
+				if s, ok := config.Colorscheme["color-column"]; ok {
+					if colorcolumn != 0 && vloc.X-w.gutterOffset+w.StartCol == colorcolumn && !dontOverrideBackground {
+						fg, _, _ := s.Decompose()
+						style = style.Background(fg)
+					}
+				}
+
+				for _, mb := range matchingBraces {
+					if mb.X == bloc.X && mb.Y == bloc.Y {
+						style = style.Underline(true)
 					}
 				}
 
 				screen.SetContent(w.X+vloc.X, w.Y+vloc.Y, r, combc, style)
 
+				if w.Buf.HasSuggestions && len(w.Buf.Completions) > 0 {
+					compl := w.Buf.Completions[0].Edits[0].Start
+					if bloc.X == compl.X && bloc.Y == compl.Y {
+						w.completeBox = buffer.Loc{w.X + vloc.X, w.Y + vloc.Y}
+					}
+				}
+
 				if showcursor {
 					for _, c := range cursors {
 						if c.X == bloc.X && c.Y == bloc.Y && !c.HasSelection() {
@@ -571,122 +598,63 @@ func (w *BufWindow) displayBuffer() {
 						}
 					}
 				}
-			}
-			if nColsBeforeStart <= 0 {
 				vloc.X++
 			}
 			nColsBeforeStart--
 		}
 
-		wrap := func() {
-			vloc.X = 0
-			if w.hasMessage {
-				w.drawGutter(&vloc, &bloc)
-			}
-			if b.Settings["diffgutter"].(bool) {
-				w.drawDiffGutter(lineNumStyle, true, &vloc, &bloc)
-			}
-
-			// This will draw an empty line number because the current line is wrapped
-			if b.Settings["ruler"].(bool) {
-				w.drawLineNum(lineNumStyle, true, &vloc, &bloc)
-			}
-		}
-
-		type glyph struct {
-			r     rune
-			combc []rune
-			style tcell.Style
-			width int
-		}
-
-		var word []glyph
-		if wordwrap {
-			word = make([]glyph, 0, w.bufWidth)
-		} else {
-			word = make([]glyph, 0, 1)
-		}
-		wordwidth := 0
-
 		totalwidth := w.StartCol - nColsBeforeStart
 		for len(line) > 0 {
 			r, combc, size := util.DecodeCharacter(line)
-			line = line[size:]
 
-			loc := buffer.Loc{X: bloc.X + len(word), Y: bloc.Y}
-			curStyle, _ = w.getStyle(curStyle, loc)
+			curStyle, _ = w.getStyle(curStyle, bloc)
+
+			draw(r, combc, curStyle, true)
 
 			width := 0
 
+			char := ' '
 			switch r {
 			case '\t':
 				ts := tabsize - (totalwidth % tabsize)
-				width = util.Min(ts, maxWidth-vloc.X)
-				totalwidth += ts
+				width = ts
 			default:
 				width = runewidth.RuneWidth(r)
-				totalwidth += width
+				char = '@'
 			}
 
-			word = append(word, glyph{r, combc, curStyle, width})
-			wordwidth += width
-
-			// Collect a complete word to know its width.
-			// If wordwrap is off, every single character is a complete "word".
-			if wordwrap {
-				if !util.IsWhitespace(r) && len(line) > 0 && wordwidth < w.bufWidth {
-					continue
+			// Draw any extra characters either spaces for tabs or @ for incomplete wide runes
+			if width > 1 {
+				for i := 1; i < width; i++ {
+					draw(char, nil, curStyle, false)
 				}
 			}
+			bloc.X++
+			line = line[size:]
 
-			// If a word (or just a wide rune) does not fit in the window
-			if vloc.X+wordwidth > maxWidth && vloc.X > w.gutterOffset {
-				for vloc.X < maxWidth {
-					draw(' ', nil, config.DefStyle, false, false)
-				}
-
-				// We either stop or we wrap to draw the word in the next line
-				if !softwrap {
-					break
-				} else {
-					vloc.Y++
-					if vloc.Y >= w.bufHeight {
-						break
-					}
-					wrap()
-				}
-			}
-
-			for _, r := range word {
-				draw(r.r, r.combc, r.style, true, true)
-
-				// Draw any extra characters either spaces for tabs or @ for incomplete wide runes
-				if r.width > 1 {
-					char := ' '
-					if r.r != '\t' {
-						char = '@'
-					}
-
-					for i := 1; i < r.width; i++ {
-						draw(char, nil, r.style, true, false)
-					}
-				}
-				bloc.X++
-			}
-
-			word = word[:0]
-			wordwidth = 0
+			totalwidth += width
 
 			// If we reach the end of the window then we either stop or we wrap for softwrap
-			if vloc.X >= maxWidth {
+			if vloc.X >= bufWidth {
 				if !softwrap {
 					break
 				} else {
 					vloc.Y++
-					if vloc.Y >= w.bufHeight {
+					if vloc.Y >= bufHeight {
 						break
 					}
-					wrap()
+					vloc.X = 0
+					if hasMessage {
+						w.drawGutter(&vloc, &bloc)
+					}
+					if b.Settings["diffgutter"].(bool) {
+						w.drawDiffGutter(lineNumStyle, true, &vloc, &bloc)
+					}
+
+					// This will draw an empty line number because the current line is wrapped
+					if b.Settings["ruler"].(bool) {
+						w.drawLineNum(lineNumStyle, true, maxLineNumLength, &vloc, &bloc)
+					}
 				}
 			}
 		}
@@ -701,7 +669,7 @@ func (w *BufWindow) displayBuffer() {
 				}
 			}
 		}
-		for i := vloc.X; i < maxWidth; i++ {
+		for i := vloc.X; i < bufWidth; i++ {
 			curStyle := style
 			if s, ok := config.Colorscheme["color-column"]; ok {
 				if colorcolumn != 0 && i-w.gutterOffset+w.StartCol == colorcolumn {
@@ -712,9 +680,9 @@ func (w *BufWindow) displayBuffer() {
 			screen.SetContent(i+w.X, vloc.Y+w.Y, ' ', nil, curStyle)
 		}
 
-		if vloc.X != maxWidth {
+		if vloc.X != bufWidth {
 			// Display newline within a selection
-			draw(' ', nil, config.DefStyle, true, true)
+			draw(' ', nil, config.DefStyle, true)
 		}
 
 		bloc.X = w.StartCol
@@ -726,9 +694,18 @@ func (w *BufWindow) displayBuffer() {
 }
 
 func (w *BufWindow) displayStatusLine() {
+	_, h := screen.Screen.Size()
+	infoY := h
+	if config.GetGlobalOption("infobar").(bool) {
+		infoY--
+	}
+
 	if w.Buf.Settings["statusline"].(bool) {
+		w.drawStatus = true
 		w.sline.Display()
-	} else if w.drawDivider {
+	} else if w.Y+w.Height != infoY {
+		w.drawStatus = true
+
 		divchars := config.GetGlobalOption("divchars").(string)
 		if util.CharacterCountInString(divchars) != 2 {
 			divchars = "|-"
@@ -750,40 +727,83 @@ func (w *BufWindow) displayStatusLine() {
 		for x := w.X; x < w.X+w.Width; x++ {
 			screen.SetContent(x, w.Y+w.Height-1, divchar, combc, dividerStyle)
 		}
+	} else {
+		w.drawStatus = false
 	}
 }
 
 func (w *BufWindow) displayScrollBar() {
 	if w.Buf.Settings["scrollbar"].(bool) && w.Buf.LinesNum() > w.Height {
 		scrollX := w.X + w.Width - 1
+		bufHeight := w.Height
+		if w.drawStatus {
+			bufHeight--
+		}
 		barsize := int(float64(w.Height) / float64(w.Buf.LinesNum()) * float64(w.Height))
 		if barsize < 1 {
 			barsize = 1
 		}
-		barstart := w.Y + int(float64(w.StartLine.Line)/float64(w.Buf.LinesNum())*float64(w.Height))
-
-		scrollBarStyle := config.DefStyle.Reverse(true)
-		if style, ok := config.Colorscheme["scrollbar"]; ok {
-			scrollBarStyle = style
+		barstart := w.Y + int(float64(w.StartLine)/float64(w.Buf.LinesNum())*float64(w.Height))
+		for y := barstart; y < util.Min(barstart+barsize, w.Y+bufHeight); y++ {
+			screen.SetContent(scrollX, y, '|', nil, config.DefStyle.Reverse(true))
 		}
+	}
+}
 
-		scrollBarChar := config.GetGlobalOption("scrollbarchar").(string)
-		if util.CharacterCountInString(scrollBarChar) != 1 {
-			scrollBarChar = "|"
-		}
-		scrollBarRune := []rune(scrollBarChar)
+func (w *BufWindow) displayCompleteBox() {
+	if !w.Buf.HasSuggestions || w.Buf.NumCursors() > 1 {
+		return
+	}
 
-		for y := barstart; y < util.Min(barstart+barsize, w.Y+w.bufHeight); y++ {
-			screen.SetContent(scrollX, y, scrollBarRune[0], nil, scrollBarStyle)
+	labelw := 0
+	detailw := 0
+	kindw := 0
+	for _, comp := range w.Buf.Completions {
+		charcount := util.CharacterCountInString(comp.Label)
+		if charcount > labelw {
+			labelw = charcount
 		}
+		charcount = util.CharacterCountInString(comp.Detail)
+		if charcount > detailw {
+			detailw = charcount
+		}
+		charcount = util.CharacterCountInString(comp.Kind)
+		if charcount > kindw {
+			kindw = charcount
+		}
+	}
+	labelw++
+	kindw++
+
+	display := func(s string, width, x, y int, cur bool) {
+		for j := 0; j < width; j++ {
+			r := ' '
+			var combc []rune
+			var size int
+			if len(s) > 0 {
+				r, combc, size = util.DecodeCharacterInString(s)
+				s = s[size:]
+			}
+			st := config.DefStyle.Reverse(true)
+			if cur {
+				st = st.Reverse(false)
+			}
+			screen.SetContent(w.completeBox.X+x+j, w.completeBox.Y+y, r, combc, st)
+		}
+	}
+
+	for i, comp := range w.Buf.Completions {
+		cur := i == w.Buf.CurCompletion
+		display(comp.Label+" ", labelw, 0, i+1, cur)
+		display(comp.Kind+" ", kindw, labelw, i+1, cur)
+		display(comp.Detail, detailw, labelw+kindw, i+1, cur)
 	}
 }
 
 // Display displays the buffer and the statusline
 func (w *BufWindow) Display() {
-	w.updateDisplayInfo()
-
 	w.displayStatusLine()
 	w.displayScrollBar()
 	w.displayBuffer()
+	w.displayCompleteBox()
 }

internal/display/infowindow.go

@@ -7,7 +7,7 @@ import (
 	"github.com/zyedidia/micro/v2/internal/info"
 	"github.com/zyedidia/micro/v2/internal/screen"
 	"github.com/zyedidia/micro/v2/internal/util"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 type InfoWindow struct {
@@ -72,23 +72,6 @@ func (i *InfoWindow) LocFromVisual(vloc buffer.Loc) buffer.Loc {
 	return buffer.Loc{c.GetCharPosInLine(l, vloc.X-n), 0}
 }
 
-func (i *InfoWindow) BufView() View {
-	return View{
-		X:         0,
-		Y:         i.Y,
-		Width:     i.Width,
-		Height:    1,
-		StartLine: SLoc{0, 0},
-		StartCol:  0,
-	}
-}
-
-func (i *InfoWindow) Scroll(s SLoc, n int) SLoc        { return s }
-func (i *InfoWindow) Diff(s1, s2 SLoc) int             { return 0 }
-func (i *InfoWindow) SLocFromLoc(loc buffer.Loc) SLoc  { return SLoc{0, 0} }
-func (i *InfoWindow) VLocFromLoc(loc buffer.Loc) VLoc  { return VLoc{SLoc{0, 0}, loc.X} }
-func (i *InfoWindow) LocFromVLoc(vloc VLoc) buffer.Loc { return buffer.Loc{vloc.VisualX, 0} }
-
 func (i *InfoWindow) Clear() {
 	for x := 0; x < i.Width; x++ {
 		screen.SetContent(x, i.Y, ' ', nil, i.defStyle())
@@ -196,8 +179,8 @@ func (i *InfoWindow) displayKeyMenu() {
 
 func (i *InfoWindow) totalSize() int {
 	sum := 0
-	for _, n := range i.Suggestions {
-		sum += runewidth.StringWidth(n) + 1
+	for _, n := range i.Completions {
+		sum += runewidth.StringWidth(n.Label) + 1
 	}
 	return sum
 }
@@ -206,9 +189,9 @@ func (i *InfoWindow) scrollToSuggestion() {
 	x := 0
 	s := i.totalSize()
 
-	for j, n := range i.Suggestions {
-		c := util.CharacterCountInString(n)
-		if j == i.CurSuggestion {
+	for j, n := range i.Completions {
+		c := util.CharacterCountInString(n.Label)
+		if j == i.CurCompletion {
 			if x+c >= i.hscroll+i.Width {
 				i.hscroll = util.Clamp(x+c+1-i.Width, 0, s-i.Width)
 			} else if x < i.hscroll {
@@ -253,16 +236,14 @@ func (i *InfoWindow) Display() {
 		}
 	}
 
-	if i.HasSuggestions && len(i.Suggestions) > 1 {
+	if i.HasSuggestions && len(i.Completions) > 1 {
 		i.scrollToSuggestion()
 
 		x := -i.hscroll
 		done := false
 
 		statusLineStyle := config.DefStyle.Reverse(true)
-		if style, ok := config.Colorscheme["statusline.suggestions"]; ok {
-			statusLineStyle = style
-		} else if style, ok := config.Colorscheme["statusline"]; ok {
+		if style, ok := config.Colorscheme["statusline"]; ok {
 			statusLineStyle = style
 		}
 		keymenuOffset := 0
@@ -292,12 +273,12 @@ func (i *InfoWindow) Display() {
 			}
 		}
 
-		for j, s := range i.Suggestions {
+		for j, s := range i.Completions {
 			style := statusLineStyle
-			if i.CurSuggestion == j {
+			if i.CurCompletion == j {
 				style = style.Reverse(true)
 			}
-			for _, r := range s {
+			for _, r := range s.Label {
 				draw(r, style)
 				// screen.SetContent(x, i.Y-keymenuOffset-1, r, nil, style)
 			}

internal/display/softwrap.go

@@ -1,348 +0,0 @@
-package display
-
-import (
-	runewidth "github.com/mattn/go-runewidth"
-	"github.com/zyedidia/micro/v2/internal/buffer"
-	"github.com/zyedidia/micro/v2/internal/util"
-)
-
-// SLoc represents a vertical scrolling location, i.e. a location of a visual line
-// in the buffer. When softwrap is enabled, a buffer line may be displayed as
-// multiple visual lines (rows). So SLoc stores a number of a line in the buffer
-// and a number of a row within this line.
-type SLoc struct {
-	Line, Row int
-}
-
-// LessThan returns true if s is less b
-func (s SLoc) LessThan(b SLoc) bool {
-	if s.Line < b.Line {
-		return true
-	}
-	return s.Line == b.Line && s.Row < b.Row
-}
-
-// GreaterThan returns true if s is bigger than b
-func (s SLoc) GreaterThan(b SLoc) bool {
-	if s.Line > b.Line {
-		return true
-	}
-	return s.Line == b.Line && s.Row > b.Row
-}
-
-// LessEqual returns true if s is less than or equal to b
-func (s SLoc) LessEqual(b SLoc) bool {
-	if s.Line < b.Line {
-		return true
-	}
-	if s.Line == b.Line && s.Row < b.Row {
-		return true
-	}
-	return s == b
-}
-
-// GreaterEqual returns true if s is bigger than or equal to b
-func (s SLoc) GreaterEqual(b SLoc) bool {
-	if s.Line > b.Line {
-		return true
-	}
-	if s.Line == b.Line && s.Row > b.Row {
-		return true
-	}
-	return s == b
-}
-
-// VLoc represents a location in the buffer as a visual location in the
-// linewrapped buffer.
-type VLoc struct {
-	SLoc
-	VisualX int
-}
-
-type SoftWrap interface {
-	Scroll(s SLoc, n int) SLoc
-	Diff(s1, s2 SLoc) int
-	SLocFromLoc(loc buffer.Loc) SLoc
-	VLocFromLoc(loc buffer.Loc) VLoc
-	LocFromVLoc(vloc VLoc) buffer.Loc
-}
-
-func (w *BufWindow) getVLocFromLoc(loc buffer.Loc) VLoc {
-	vloc := VLoc{SLoc: SLoc{loc.Y, 0}, VisualX: 0}
-
-	if loc.X <= 0 {
-		return vloc
-	}
-
-	if w.bufWidth <= 0 {
-		return vloc
-	}
-
-	wordwrap := w.Buf.Settings["wordwrap"].(bool)
-	tabsize := util.IntOpt(w.Buf.Settings["tabsize"])
-
-	line := w.Buf.LineBytes(loc.Y)
-	x := 0
-	totalwidth := 0
-
-	wordwidth := 0
-	wordoffset := 0
-
-	for len(line) > 0 {
-		r, _, size := util.DecodeCharacter(line)
-		line = line[size:]
-
-		width := 0
-		switch r {
-		case '\t':
-			ts := tabsize - (totalwidth % tabsize)
-			width = util.Min(ts, w.bufWidth-vloc.VisualX)
-			totalwidth += ts
-		default:
-			width = runewidth.RuneWidth(r)
-			totalwidth += width
-		}
-
-		wordwidth += width
-
-		// Collect a complete word to know its width.
-		// If wordwrap is off, every single character is a complete "word".
-		if wordwrap {
-			if !util.IsWhitespace(r) && len(line) > 0 && wordwidth < w.bufWidth {
-				if x < loc.X {
-					wordoffset += width
-					x++
-				}
-				continue
-			}
-		}
-
-		// If a word (or just a wide rune) does not fit in the window
-		if vloc.VisualX+wordwidth > w.bufWidth && vloc.VisualX > 0 {
-			vloc.Row++
-			vloc.VisualX = 0
-		}
-
-		if x == loc.X {
-			vloc.VisualX += wordoffset
-			return vloc
-		}
-		x++
-
-		vloc.VisualX += wordwidth
-
-		wordwidth = 0
-		wordoffset = 0
-
-		if vloc.VisualX >= w.bufWidth {
-			vloc.Row++
-			vloc.VisualX = 0
-		}
-	}
-	return vloc
-}
-
-func (w *BufWindow) getLocFromVLoc(svloc VLoc) buffer.Loc {
-	loc := buffer.Loc{X: 0, Y: svloc.Line}
-
-	if w.bufWidth <= 0 {
-		return loc
-	}
-
-	wordwrap := w.Buf.Settings["wordwrap"].(bool)
-	tabsize := util.IntOpt(w.Buf.Settings["tabsize"])
-
-	line := w.Buf.LineBytes(svloc.Line)
-	vloc := VLoc{SLoc: SLoc{svloc.Line, 0}, VisualX: 0}
-
-	totalwidth := 0
-
-	var widths []int
-	if wordwrap {
-		widths = make([]int, 0, w.bufWidth)
-	} else {
-		widths = make([]int, 0, 1)
-	}
-	wordwidth := 0
-
-	for len(line) > 0 {
-		r, _, size := util.DecodeCharacter(line)
-		line = line[size:]
-
-		width := 0
-		switch r {
-		case '\t':
-			ts := tabsize - (totalwidth % tabsize)
-			width = util.Min(ts, w.bufWidth-vloc.VisualX)
-			totalwidth += ts
-		default:
-			width = runewidth.RuneWidth(r)
-			totalwidth += width
-		}
-
-		widths = append(widths, width)
-		wordwidth += width
-
-		// Collect a complete word to know its width.
-		// If wordwrap is off, every single character is a complete "word".
-		if wordwrap {
-			if !util.IsWhitespace(r) && len(line) > 0 && wordwidth < w.bufWidth {
-				continue
-			}
-		}
-
-		// If a word (or just a wide rune) does not fit in the window
-		if vloc.VisualX+wordwidth > w.bufWidth && vloc.VisualX > 0 {
-			if vloc.Row == svloc.Row {
-				if wordwrap {
-					// it's a word, not a wide rune
-					loc.X--
-				}
-				return loc
-			}
-			vloc.Row++
-			vloc.VisualX = 0
-		}
-
-		for i := range widths {
-			vloc.VisualX += widths[i]
-			if vloc.Row == svloc.Row && vloc.VisualX > svloc.VisualX {
-				return loc
-			}
-			loc.X++
-		}
-
-		widths = widths[:0]
-		wordwidth = 0
-
-		if vloc.VisualX >= w.bufWidth {
-			vloc.Row++
-			vloc.VisualX = 0
-		}
-	}
-	return loc
-}
-
-func (w *BufWindow) getRowCount(line int) int {
-	eol := buffer.Loc{X: util.CharacterCount(w.Buf.LineBytes(line)), Y: line}
-	return w.getVLocFromLoc(eol).Row + 1
-}
-
-func (w *BufWindow) scrollUp(s SLoc, n int) SLoc {
-	for n > 0 {
-		if n <= s.Row {
-			s.Row -= n
-			n = 0
-		} else if s.Line > 0 {
-			s.Line--
-			n -= s.Row + 1
-			s.Row = w.getRowCount(s.Line) - 1
-		} else {
-			s.Row = 0
-			break
-		}
-	}
-	return s
-}
-
-func (w *BufWindow) scrollDown(s SLoc, n int) SLoc {
-	for n > 0 {
-		rc := w.getRowCount(s.Line)
-		if n < rc-s.Row {
-			s.Row += n
-			n = 0
-		} else if s.Line < w.Buf.LinesNum()-1 {
-			s.Line++
-			n -= rc - s.Row
-			s.Row = 0
-		} else {
-			s.Row = rc - 1
-			break
-		}
-	}
-	return s
-}
-
-func (w *BufWindow) scroll(s SLoc, n int) SLoc {
-	if n < 0 {
-		return w.scrollUp(s, -n)
-	}
-	return w.scrollDown(s, n)
-}
-
-func (w *BufWindow) diff(s1, s2 SLoc) int {
-	n := 0
-	for s1.LessThan(s2) {
-		if s1.Line < s2.Line {
-			n += w.getRowCount(s1.Line) - s1.Row
-			s1.Line++
-			s1.Row = 0
-		} else {
-			n += s2.Row - s1.Row
-			s1.Row = s2.Row
-		}
-	}
-	return n
-}
-
-// Scroll returns the location which is n visual lines below the location s
-// i.e. the result of scrolling n lines down. n can be negative,
-// which means scrolling up. The returned location is guaranteed to be
-// within the buffer boundaries.
-func (w *BufWindow) Scroll(s SLoc, n int) SLoc {
-	if !w.Buf.Settings["softwrap"].(bool) {
-		s.Line += n
-		if s.Line < 0 {
-			s.Line = 0
-		}
-		if s.Line > w.Buf.LinesNum()-1 {
-			s.Line = w.Buf.LinesNum() - 1
-		}
-		return s
-	}
-	return w.scroll(s, n)
-}
-
-// Diff returns the difference (the vertical distance) between two SLocs.
-func (w *BufWindow) Diff(s1, s2 SLoc) int {
-	if !w.Buf.Settings["softwrap"].(bool) {
-		return s2.Line - s1.Line
-	}
-	if s1.GreaterThan(s2) {
-		return -w.diff(s2, s1)
-	}
-	return w.diff(s1, s2)
-}
-
-// SLocFromLoc takes a position in the buffer and returns the location
-// of the visual line containing this position.
-func (w *BufWindow) SLocFromLoc(loc buffer.Loc) SLoc {
-	if !w.Buf.Settings["softwrap"].(bool) {
-		return SLoc{loc.Y, 0}
-	}
-	return w.getVLocFromLoc(loc).SLoc
-}
-
-// VLocFromLoc takes a position in the buffer and returns the corresponding
-// visual location in the linewrapped buffer.
-func (w *BufWindow) VLocFromLoc(loc buffer.Loc) VLoc {
-	if !w.Buf.Settings["softwrap"].(bool) {
-		tabsize := util.IntOpt(w.Buf.Settings["tabsize"])
-
-		visualx := util.StringWidth(w.Buf.LineBytes(loc.Y), loc.X, tabsize)
-		return VLoc{SLoc{loc.Y, 0}, visualx}
-	}
-	return w.getVLocFromLoc(loc)
-}
-
-// LocFromVLoc takes a visual location in the linewrapped buffer and returns
-// the position in the buffer corresponding to this visual location.
-func (w *BufWindow) LocFromVLoc(vloc VLoc) buffer.Loc {
-	if !w.Buf.Settings["softwrap"].(bool) {
-		tabsize := util.IntOpt(w.Buf.Settings["tabsize"])
-
-		x := util.GetCharPosInLine(w.Buf.LineBytes(vloc.Line), vloc.VisualX, tabsize)
-		return buffer.Loc{x, vloc.Line}
-	}
-	return w.getLocFromVLoc(vloc)
-}

internal/display/statusline.go

@@ -47,12 +47,6 @@ var statusInfo = map[string]func(*buffer.Buffer) string{
 		}
 		return ""
 	},
-	"lines": func(b *buffer.Buffer) string {
-		return strconv.Itoa(b.LinesNum())
-	},
-	"percentage": func(b *buffer.Buffer) string {
-		return strconv.Itoa((b.GetActiveCursor().Y + 1) * 100 / b.LinesNum())
-	},
 }
 
 func SetStatusInfoFnLua(fn string) {
@@ -66,7 +60,7 @@ func SetStatusInfoFnLua(fn string) {
 		return
 	}
 	statusInfo[fn] = func(b *buffer.Buffer) string {
-		if pl == nil || !pl.IsLoaded() {
+		if pl == nil || !pl.IsEnabled() {
 			return ""
 		}
 		val, err := pl.Call(plFn, luar.New(ulua.L, b))
@@ -104,44 +98,6 @@ func (s *StatusLine) Display() {
 	// We'll draw the line at the lowest line in the window
 	y := s.win.Height + s.win.Y - 1
 
-	winX := s.win.X
-
-	b := s.win.Buf
-	// autocomplete suggestions (for the buffer, not for the infowindow)
-	if b.HasSuggestions && len(b.Suggestions) > 1 {
-		statusLineStyle := config.DefStyle.Reverse(true)
-		if style, ok := config.Colorscheme["statusline.suggestions"]; ok {
-			statusLineStyle = style
-		} else if style, ok := config.Colorscheme["statusline"]; ok {
-			statusLineStyle = style
-		}
-		x := 0
-		for j, sug := range b.Suggestions {
-			style := statusLineStyle
-			if b.CurSuggestion == j {
-				style = style.Reverse(true)
-			}
-			for _, r := range sug {
-				screen.SetContent(winX+x, y, r, nil, style)
-				x++
-				if x >= s.win.Width {
-					return
-				}
-			}
-			screen.SetContent(winX+x, y, ' ', nil, statusLineStyle)
-			x++
-			if x >= s.win.Width {
-				return
-			}
-		}
-
-		for x < s.win.Width {
-			screen.SetContent(winX+x, y, ' ', nil, statusLineStyle)
-			x++
-		}
-		return
-	}
-
 	formatter := func(match []byte) []byte {
 		name := match[2 : len(match)-1]
 		if bytes.HasPrefix(name, []byte("opt")) {
@@ -149,7 +105,7 @@ func (s *StatusLine) Display() {
 			return []byte(fmt.Sprint(s.FindOpt(string(option))))
 		} else if bytes.HasPrefix(name, []byte("bind")) {
 			binding := string(name[5:])
-			for k, v := range config.Bindings["buffer"] {
+			for k, v := range config.Bindings {
 				if v == binding {
 					return []byte(k)
 				}
@@ -169,21 +125,14 @@ func (s *StatusLine) Display() {
 	rightText = formatParser.ReplaceAllFunc(rightText, formatter)
 
 	statusLineStyle := config.DefStyle.Reverse(true)
-	if s.win.IsActive() {
-		if style, ok := config.Colorscheme["statusline"]; ok {
-			statusLineStyle = style
-		}
-	} else {
-		if style, ok := config.Colorscheme["statusline.inactive"]; ok {
-			statusLineStyle = style
-		} else if style, ok := config.Colorscheme["statusline"]; ok {
-			statusLineStyle = style
-		}
+	if style, ok := config.Colorscheme["statusline"]; ok {
+		statusLineStyle = style
 	}
 
 	leftLen := util.StringWidth(leftText, util.CharacterCount(leftText), 1)
 	rightLen := util.StringWidth(rightText, util.CharacterCount(rightText), 1)
 
+	winX := s.win.X
 	for x := 0; x < s.win.Width; x++ {
 		if x < leftLen {
 			r, combc, size := util.DecodeCharacter(leftText)

internal/display/tabwindow.go

@@ -2,7 +2,6 @@ package display
 
 import (
 	runewidth "github.com/mattn/go-runewidth"
-	"github.com/zyedidia/tcell/v2"
 	"github.com/zyedidia/micro/v2/internal/buffer"
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/screen"
@@ -95,31 +94,12 @@ func (w *TabWindow) Display() {
 	x := -w.hscroll
 	done := false
 
-	globalTabReverse := config.GetGlobalOption("tabreverse").(bool)
-	globalTabHighlight := config.GetGlobalOption("tabhighlight").(bool)
-
-	// xor of reverse and tab highlight to get tab character (as in filename and surrounding characters) reverse state
-	tabCharHighlight := (globalTabReverse || globalTabHighlight) && !(globalTabReverse && globalTabHighlight)
-
-	reverseStyles := func(reverse bool) (tcell.Style, tcell.Style) {
-		tabBarStyle := config.DefStyle.Reverse(reverse)
-		if style, ok := config.Colorscheme["tabbar"]; ok {
-			tabBarStyle = style
-		}
-		tabBarActiveStyle := tabBarStyle
-		if style, ok := config.Colorscheme["tabbar.active"]; ok {
-			tabBarActiveStyle = style
-		}
-		return tabBarStyle, tabBarActiveStyle
+	tabBarStyle := config.DefStyle.Reverse(true)
+	if style, ok := config.Colorscheme["tabbar"]; ok {
+		tabBarStyle = style
 	}
-	
-	draw := func(r rune, n int, active bool, reversed bool) {
-		tabBarStyle, tabBarActiveStyle := reverseStyles(reversed)
-		
-		style := tabBarStyle
-		if active {
-			style = tabBarActiveStyle
-		}
+
+	draw := func(r rune, n int) {
 		for i := 0; i < n; i++ {
 			rw := runewidth.RuneWidth(r)
 			for j := 0; j < rw; j++ {
@@ -134,7 +114,7 @@ func (w *TabWindow) Display() {
 				} else if x == 0 && w.hscroll > 0 {
 					screen.SetContent(0, w.Y, '<', nil, tabBarStyle)
 				} else if x >= 0 && x < w.Width {
-					screen.SetContent(x, w.Y, c, nil, style)
+					screen.SetContent(x, w.Y, c, nil, tabBarStyle)
 				}
 				x++
 			}
@@ -143,33 +123,28 @@ func (w *TabWindow) Display() {
 
 	for i, n := range w.Names {
 		if i == w.active {
-			draw('[', 1, true, tabCharHighlight)
+			draw('[', 1)
 		} else {
-			draw(' ', 1, false, tabCharHighlight)
+			draw(' ', 1)
 		}
-		
 		for _, c := range n {
-			draw(c, 1, i == w.active, tabCharHighlight)
+			draw(c, 1)
 		}
-		
 		if i == len(w.Names)-1 {
 			done = true
 		}
-		
 		if i == w.active {
-			draw(']', 1, true, tabCharHighlight)
-			draw(' ', 2, true, globalTabReverse)
+			draw(']', 1)
+			draw(' ', 2)
 		} else {
-			draw(' ', 1, false, tabCharHighlight)
-			draw(' ', 2, false, globalTabReverse)
+			draw(' ', 3)
 		}
-		
 		if x >= w.Width {
 			break
 		}
 	}
 
 	if x < w.Width {
-		draw(' ', w.Width-x, false, globalTabReverse)
+		draw(' ', w.Width-x)
 	}
 }

internal/display/termwindow.go

@@ -6,7 +6,7 @@ import (
 	"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"
+	"github.com/zyedidia/tcell"
 	"github.com/zyedidia/terminal"
 )
 
@@ -81,7 +81,7 @@ func (w *TermWindow) Display() {
 			if b == terminal.DefaultBG {
 				bg = int(tcell.ColorDefault)
 			}
-			st := tcell.StyleDefault.Foreground(config.GetColor256(fg)).Background(config.GetColor256(bg))
+			st := tcell.StyleDefault.Foreground(config.GetColor256(int(fg))).Background(config.GetColor256(int(bg)))
 
 			if l.LessThan(w.Selection[1]) && l.GreaterEqual(w.Selection[0]) || l.LessThan(w.Selection[0]) && l.GreaterEqual(w.Selection[1]) {
 				st = st.Reverse(true)

internal/display/window.go

@@ -8,13 +8,10 @@ type View struct {
 	X, Y          int // X,Y location of the view
 	Width, Height int // Width and height of the view
 
-	// Start line of the view (for vertical scroll)
-	StartLine SLoc
-
-	// Start column of the view (for horizontal scroll)
+	// Start line and start column of the view (vertical/horizontal scroll)
 	// note that since the starting column of every line is different if the view
 	// is scrolled, StartCol is a visual index (will be the same for every line)
-	StartCol int
+	StartLine, StartCol int
 }
 
 type Window interface {
@@ -31,7 +28,5 @@ type Window interface {
 
 type BWindow interface {
 	Window
-	SoftWrap
 	SetBuffer(b *buffer.Buffer)
-	BufView() View
 }

internal/info/history.go

@@ -4,10 +4,8 @@ import (
 	"encoding/gob"
 	"os"
 	"path/filepath"
-	"strings"
 
 	"github.com/zyedidia/micro/v2/internal/config"
-	"github.com/zyedidia/micro/v2/internal/util"
 )
 
 // LoadHistory attempts to load user history from configDir/buffers/history
@@ -16,9 +14,9 @@ import (
 func (i *InfoBuf) LoadHistory() {
 	if config.GetGlobalOption("savehistory").(bool) {
 		file, err := os.Open(filepath.Join(config.ConfigDir, "buffers", "history"))
+		defer file.Close()
 		var decodedMap map[string][]string
 		if err == nil {
-			defer file.Close()
 			decoder := gob.NewDecoder(file)
 			err = decoder.Decode(&decodedMap)
 
@@ -50,8 +48,8 @@ func (i *InfoBuf) SaveHistory() {
 		}
 
 		file, err := os.Create(filepath.Join(config.ConfigDir, "buffers", "history"))
+		defer file.Close()
 		if err == nil {
-			defer file.Close()
 			encoder := gob.NewEncoder(file)
 
 			err = encoder.Encode(i.History)
@@ -63,30 +61,6 @@ func (i *InfoBuf) SaveHistory() {
 	}
 }
 
-// AddToHistory adds a new item to the history for the prompt type `ptype`.
-// This function is not used by micro itself. It is useful for plugins
-// which add their own items to the history, bypassing the infobar command line.
-func (i *InfoBuf) AddToHistory(ptype string, item string) {
-	if i.HasPrompt && i.PromptType == ptype {
-		return
-	}
-
-	if _, ok := i.History[ptype]; !ok {
-		i.History[ptype] = []string{item}
-	} else {
-		i.History[ptype] = append(i.History[ptype], item)
-
-		// avoid duplicates
-		h := i.History[ptype]
-		for j := len(h) - 2; j >= 0; j-- {
-			if h[j] == h[len(h)-1] {
-				i.History[ptype] = append(h[:j], h[j+1:]...)
-				break
-			}
-		}
-	}
-}
-
 // UpHistory fetches the previous item in the history
 func (i *InfoBuf) UpHistory(history []string) {
 	if i.HistoryNum > 0 && i.HasPrompt && !i.HasYN {
@@ -104,51 +78,3 @@ func (i *InfoBuf) DownHistory(history []string) {
 		i.Buffer.GetActiveCursor().GotoLoc(i.End())
 	}
 }
-
-// SearchUpHistory fetches the previous item in the history
-// beginning with the text in the infobuffer before cursor
-func (i *InfoBuf) SearchUpHistory(history []string) {
-	if i.HistoryNum > 0 && i.HasPrompt && !i.HasYN {
-		i.searchHistory(history, false)
-	}
-}
-
-// SearchDownHistory fetches the next item in the history
-// beginning with the text in the infobuffer before cursor
-func (i *InfoBuf) SearchDownHistory(history []string) {
-	if i.HistoryNum < len(history)-1 && i.HasPrompt && !i.HasYN {
-		i.searchHistory(history, true)
-	}
-}
-
-func (i *InfoBuf) searchHistory(history []string, down bool) {
-	line := string(i.LineBytes(0))
-	c := i.Buffer.GetActiveCursor()
-
-	if !i.HistorySearch || !strings.HasPrefix(line, i.HistorySearchPrefix) {
-		i.HistorySearch = true
-		i.HistorySearchPrefix = util.SliceStartStr(line, c.X)
-	}
-
-	found := -1
-	if down {
-		for j := i.HistoryNum + 1; j < len(history); j++ {
-			if strings.HasPrefix(history[j], i.HistorySearchPrefix) {
-				found = j
-				break
-			}
-		}
-	} else {
-		for j := i.HistoryNum - 1; j >= 0; j-- {
-			if strings.HasPrefix(history[j], i.HistorySearchPrefix) {
-				found = j
-				break
-			}
-		}
-	}
-	if found != -1 {
-		i.HistoryNum = found
-		i.Replace(i.Start(), i.End(), history[found])
-		c.GotoLoc(i.End())
-	}
-}

internal/info/infobuffer.go

@@ -25,10 +25,6 @@ type InfoBuf struct {
 	// It's a map of history type -> history array
 	History    map[string][]string
 	HistoryNum int
-	// HistorySearch indicates whether we are searching for history items
-	// beginning with HistorySearchPrefix
-	HistorySearch       bool
-	HistorySearchPrefix string
 
 	// Is the current message a message from the gutter
 	HasGutter bool
@@ -58,7 +54,7 @@ func (i *InfoBuf) Close() {
 func (i *InfoBuf) Message(msg ...interface{}) {
 	// only display a new message if there isn't an active prompt
 	// this is to prevent overwriting an existing prompt to the user
-	if !i.HasPrompt {
+	if i.HasPrompt == false {
 		displayMessage := fmt.Sprint(msg...)
 		// if there is no active prompt then style and display the message as normal
 		i.Msg = displayMessage
@@ -82,7 +78,7 @@ func (i *InfoBuf) ClearGutter() {
 func (i *InfoBuf) Error(msg ...interface{}) {
 	// only display a new message if there isn't an active prompt
 	// this is to prevent overwriting an existing prompt to the user
-	if !i.HasPrompt {
+	if i.HasPrompt == false {
 		// if there is no active prompt then style and display the message as normal
 		i.Msg = fmt.Sprint(msg...)
 		i.HasMessage, i.HasError = false, true
@@ -106,7 +102,6 @@ func (i *InfoBuf) Prompt(prompt string, msg string, ptype string, eventcb func(s
 		i.History[ptype] = append(i.History[ptype], "")
 	}
 	i.HistoryNum = len(i.History[ptype]) - 1
-	i.HistorySearch = false
 
 	i.PromptType = ptype
 	i.Msg = prompt
@@ -142,27 +137,18 @@ func (i *InfoBuf) DonePrompt(canceled bool) {
 	if !hadYN {
 		if i.PromptCallback != nil {
 			if canceled {
-				i.Replace(i.Start(), i.End(), "")
 				i.PromptCallback("", true)
 				h := i.History[i.PromptType]
 				i.History[i.PromptType] = h[:len(h)-1]
 			} else {
 				resp := string(i.LineBytes(0))
-				i.Replace(i.Start(), i.End(), "")
 				i.PromptCallback(resp, false)
 				h := i.History[i.PromptType]
 				h[len(h)-1] = resp
-
-				// avoid duplicates
-				for j := len(h) - 2; j >= 0; j-- {
-					if h[j] == h[len(h)-1] {
-						i.History[i.PromptType] = append(h[:j], h[j+1:]...)
-						break
-					}
-				}
 			}
 			// i.PromptCallback = nil
 		}
+		i.Replace(i.Start(), i.End(), "")
 	}
 	if i.YNCallback != nil && hadYN {
 		i.YNCallback(i.YNResp, canceled)

internal/lsp/install.go

@@ -0,0 +1,94 @@
+package lsp
+
+import (
+	"errors"
+	"io"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+
+	"github.com/zyedidia/micro/v2/internal/config"
+	"gopkg.in/yaml.v2"
+)
+
+var ErrManualInstall = errors.New("Requires manual installation")
+
+type Config struct {
+	Languages map[string]Language `yaml:"language"`
+}
+
+type Language struct {
+	Command string     `yaml:"command"`
+	Args    []string   `yaml:"args"`
+	Install [][]string `yaml:"install"`
+}
+
+var conf *Config
+
+func GetLanguage(lang string) (Language, bool) {
+	if conf != nil {
+		l, ok := conf.Languages[lang]
+		return l, ok
+	}
+	return Language{}, false
+}
+
+func Init() error {
+	var servers []byte
+	var err error
+
+	filename := filepath.Join(config.ConfigDir, "lsp.yaml")
+	if _, e := os.Stat(filename); e == nil {
+		servers, err = ioutil.ReadFile(filename)
+		if err != nil {
+			servers = servers_internal
+		}
+	} else {
+		err = ioutil.WriteFile(filename, servers_internal, 0644)
+		servers = servers_internal
+	}
+
+	conf, err = LoadConfig(servers)
+	return err
+}
+
+func LoadConfig(data []byte) (*Config, error) {
+	var conf Config
+	if err := yaml.Unmarshal(data, &conf); err != nil {
+		return nil, err
+	}
+
+	return &conf, nil
+}
+
+func (l Language) Installed() bool {
+	_, err := exec.LookPath(l.Command)
+	if err != nil {
+		return false
+	}
+
+	return true
+}
+
+func (l Language) DoInstall(w io.Writer) error {
+	if l.Installed() {
+		return nil
+	}
+
+	if len(l.Install) == 0 {
+		return ErrManualInstall
+	}
+
+	for _, c := range l.Install {
+		io.WriteString(w, strings.Join(c, " ")+"\n")
+		cmd := exec.Command(c[0], c[1:]...)
+		err := cmd.Run()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

internal/lsp/languages.go

@@ -0,0 +1,20 @@
+package lsp
+
+// mappings for when micro filetypes don't match LSP language identifiers
+var languages = map[string]string{
+	"batch":           "bat",
+	"c++":             "cpp",
+	"git-rebase-todo": "git-rebase",
+	"html4":           "html",
+	"html5":           "html",
+	"python2":         "python",
+	"shell":           "shellscript",
+	// "tex": "latex",
+}
+
+func Filetype(ft string) string {
+	if l, ok := languages[ft]; ok {
+		return l
+	}
+	return ft
+}

internal/lsp/notifications.go

@@ -0,0 +1,58 @@
+package lsp
+
+import (
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
+)
+
+func (s *Server) DidOpen(filename, language, text string, version uint64) {
+	doc := lsp.TextDocumentItem{
+		URI:        uri.File(filename),
+		LanguageID: lsp.LanguageIdentifier(language),
+		Version:    float64(version), // not sure why this is a float on go.lsp.dev
+		Text:       text,
+	}
+
+	params := lsp.DidOpenTextDocumentParams{
+		TextDocument: doc,
+	}
+
+	go s.sendNotification(lsp.MethodTextDocumentDidOpen, params)
+}
+
+func (s *Server) DidSave(filename string) {
+	doc := lsp.TextDocumentIdentifier{
+		URI: uri.File(filename),
+	}
+
+	params := lsp.DidSaveTextDocumentParams{
+		TextDocument: doc,
+	}
+	go s.sendNotification(lsp.MethodTextDocumentDidSave, params)
+}
+
+func (s *Server) DidChange(filename string, version uint64, changes []lsp.TextDocumentContentChangeEvent) {
+	doc := lsp.VersionedTextDocumentIdentifier{
+		TextDocumentIdentifier: lsp.TextDocumentIdentifier{
+			URI: uri.File(filename),
+		},
+		Version: &version,
+	}
+
+	params := lsp.DidChangeTextDocumentParams{
+		TextDocument:   doc,
+		ContentChanges: changes,
+	}
+	go s.sendNotification(lsp.MethodTextDocumentDidChange, params)
+}
+
+func (s *Server) DidClose(filename string) {
+	doc := lsp.TextDocumentIdentifier{
+		URI: uri.File(filename),
+	}
+
+	params := lsp.DidCloseTextDocumentParams{
+		TextDocument: doc,
+	}
+	go s.sendNotification(lsp.MethodTextDocumentDidClose, params)
+}

internal/lsp/requests.go

@@ -0,0 +1,198 @@
+package lsp
+
+import (
+	"encoding/json"
+	"errors"
+
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
+)
+
+var ErrNotSupported = errors.New("Operation not supported by language server")
+
+type RPCCompletion struct {
+	RPCVersion string             `json:"jsonrpc"`
+	ID         int                `json:"id"`
+	Result     lsp.CompletionList `json:"result"`
+}
+
+type RPCCompletionAlternate struct {
+	RPCVersion string               `json:"jsonrpc"`
+	ID         int                  `json:"id"`
+	Result     []lsp.CompletionItem `json:"result"`
+}
+
+type RPCHover struct {
+	RPCVersion string    `json:"jsonrpc"`
+	ID         int       `json:"id"`
+	Result     lsp.Hover `json:"result"`
+}
+
+type RPCFormat struct {
+	RPCVersion string         `json:"jsonrpc"`
+	ID         int            `json:"id"`
+	Result     []lsp.TextEdit `json:"result"`
+}
+
+type hoverAlternate struct {
+	// Contents is the hover's content
+	Contents []interface{} `json:"contents"`
+
+	// Range an optional range is a range inside a text document
+	// that is used to visualize a hover, e.g. by changing the background color.
+	Range lsp.Range `json:"range,omitempty"`
+}
+
+type RPCHoverAlternate struct {
+	RPCVersion string         `json:"jsonrpc"`
+	ID         int            `json:"id"`
+	Result     hoverAlternate `json:"result"`
+}
+
+func Position(x, y int) lsp.Position {
+	return lsp.Position{
+		Line:      float64(y),
+		Character: float64(x),
+	}
+}
+
+func (s *Server) DocumentFormat(filename string, options lsp.FormattingOptions) ([]lsp.TextEdit, error) {
+	if !s.capabilities.DocumentFormattingProvider {
+		return nil, ErrNotSupported
+	}
+	doc := lsp.TextDocumentIdentifier{
+		URI: uri.File(filename),
+	}
+
+	params := lsp.DocumentFormattingParams{
+		Options:      options,
+		TextDocument: doc,
+	}
+
+	resp, err := s.sendRequest(lsp.MethodTextDocumentFormatting, params)
+	if err != nil {
+		return nil, err
+	}
+
+	var r RPCFormat
+	err = json.Unmarshal(resp, &r)
+	if err != nil {
+		return nil, err
+	}
+
+	return r.Result, nil
+}
+
+func (s *Server) DocumentRangeFormat(filename string, r lsp.Range, options lsp.FormattingOptions) ([]lsp.TextEdit, error) {
+	if !s.capabilities.DocumentRangeFormattingProvider {
+		return nil, ErrNotSupported
+	}
+
+	doc := lsp.TextDocumentIdentifier{
+		URI: uri.File(filename),
+	}
+
+	params := lsp.DocumentRangeFormattingParams{
+		Options:      options,
+		Range:        r,
+		TextDocument: doc,
+	}
+
+	resp, err := s.sendRequest(lsp.MethodTextDocumentFormatting, params)
+	if err != nil {
+		return nil, err
+	}
+
+	var rpc RPCFormat
+	err = json.Unmarshal(resp, &rpc)
+	if err != nil {
+		return nil, err
+	}
+
+	return rpc.Result, nil
+}
+
+func (s *Server) Completion(filename string, pos lsp.Position) ([]lsp.CompletionItem, error) {
+	if s.capabilities.CompletionProvider == nil {
+		return nil, ErrNotSupported
+	}
+
+	cc := lsp.CompletionContext{
+		TriggerKind: lsp.Invoked,
+	}
+
+	docpos := lsp.TextDocumentPositionParams{
+		TextDocument: lsp.TextDocumentIdentifier{
+			URI: uri.File(filename),
+		},
+		Position: pos,
+	}
+
+	params := lsp.CompletionParams{
+		TextDocumentPositionParams: docpos,
+		Context:                    &cc,
+	}
+	resp, err := s.sendRequest(lsp.MethodTextDocumentCompletion, params)
+	if err != nil {
+		return nil, err
+	}
+
+	var r RPCCompletion
+	err = json.Unmarshal(resp, &r)
+	if err == nil {
+		return r.Result.Items, nil
+	}
+	var ra RPCCompletionAlternate
+	err = json.Unmarshal(resp, &ra)
+	if err != nil {
+		return nil, err
+	}
+	return ra.Result, nil
+}
+
+func (s *Server) CompletionResolve() {
+
+}
+
+func (s *Server) Hover(filename string, pos lsp.Position) (string, error) {
+	if !s.capabilities.HoverProvider {
+		return "", ErrNotSupported
+	}
+
+	params := lsp.TextDocumentPositionParams{
+		TextDocument: lsp.TextDocumentIdentifier{
+			URI: uri.File(filename),
+		},
+		Position: pos,
+	}
+
+	resp, err := s.sendRequest(lsp.MethodTextDocumentHover, params)
+	if err != nil {
+		return "", err
+	}
+
+	var r RPCHover
+	err = json.Unmarshal(resp, &r)
+	if err == nil {
+		return r.Result.Contents.Value, nil
+	}
+
+	var ra RPCHoverAlternate
+	err = json.Unmarshal(resp, &ra)
+	if err != nil {
+		return "", err
+	}
+
+	for _, c := range ra.Result.Contents {
+		switch t := c.(type) {
+		case string:
+			return t, nil
+		case map[string]interface{}:
+			s, ok := t["value"].(string)
+			if ok {
+				return s, nil
+			}
+		}
+	}
+	return "", nil
+}

internal/lsp/server.go

@@ -0,0 +1,322 @@
+package lsp
+
+import (
+	"bufio"
+	"encoding/json"
+	"errors"
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	lsp "go.lsp.dev/protocol"
+	"go.lsp.dev/uri"
+)
+
+var activeServers map[string]*Server
+var slock sync.Mutex
+
+func init() {
+	activeServers = make(map[string]*Server)
+}
+
+func GetServer(l Language, dir string) *Server {
+	s, ok := activeServers[l.Command+"-"+dir]
+	if ok && s.Active {
+		return s
+	}
+	return nil
+}
+
+func ShutdownAllServers() {
+	for _, s := range activeServers {
+		if s.Active {
+			s.Shutdown()
+		}
+	}
+}
+
+type Server struct {
+	cmd          *exec.Cmd
+	stdin        io.WriteCloser
+	stdout       *bufio.Reader
+	language     *Language
+	capabilities lsp.ServerCapabilities
+	root         string
+	lock         sync.Mutex
+	Active       bool
+	requestID    int
+	responses    map[int]chan ([]byte)
+}
+
+type RPCRequest struct {
+	RPCVersion string      `json:"jsonrpc"`
+	ID         int         `json:"id"`
+	Method     string      `json:"method"`
+	Params     interface{} `json:"params"`
+}
+
+type RPCNotification struct {
+	RPCVersion string      `json:"jsonrpc"`
+	Method     string      `json:"method"`
+	Params     interface{} `json:"params"`
+}
+
+type RPCInit struct {
+	RPCVersion string               `json:"jsonrpc"`
+	ID         int                  `json:"id"`
+	Result     lsp.InitializeResult `json:"result"`
+}
+
+type RPCResult struct {
+	RPCVersion string `json:"jsonrpc"`
+	ID         int    `json:"id,omitempty"`
+	Method     string `json:"method,omitempty"`
+}
+
+func StartServer(l Language) (*Server, error) {
+	s := new(Server)
+
+	c := exec.Command(l.Command, l.Args...)
+
+	c.Stderr = log.Writer()
+
+	stdin, err := c.StdinPipe()
+	if err != nil {
+		log.Println("[micro-lsp]", err)
+		return nil, err
+	}
+
+	stdout, err := c.StdoutPipe()
+	if err != nil {
+		log.Println("[micro-lsp]", err)
+		return nil, err
+	}
+
+	err = c.Start()
+	if err != nil {
+		log.Println("[micro-lsp]", err)
+		return nil, err
+	}
+
+	s.cmd = c
+	s.stdin = stdin
+	s.stdout = bufio.NewReader(stdout)
+	s.language = &l
+	s.responses = make(map[int]chan []byte)
+
+	return s, nil
+}
+
+// Initialize performs the LSP initialization handshake
+// The directory must be an absolute path
+func (s *Server) Initialize(directory string) {
+	params := lsp.InitializeParams{
+		ProcessID: float64(os.Getpid()),
+		RootURI:   uri.File(directory),
+		Capabilities: lsp.ClientCapabilities{
+			Workspace: &lsp.WorkspaceClientCapabilities{
+				WorkspaceEdit: &lsp.WorkspaceClientCapabilitiesWorkspaceEdit{
+					DocumentChanges:    true,
+					ResourceOperations: []string{"create", "rename", "delete"},
+				},
+				ApplyEdit: true,
+			},
+			TextDocument: &lsp.TextDocumentClientCapabilities{
+				Formatting: &lsp.TextDocumentClientCapabilitiesFormatting{
+					DynamicRegistration: false,
+				},
+				Completion: &lsp.TextDocumentClientCapabilitiesCompletion{
+					DynamicRegistration: false,
+					CompletionItem: &lsp.TextDocumentClientCapabilitiesCompletionItem{
+						SnippetSupport:          false,
+						CommitCharactersSupport: false,
+						DocumentationFormat:     []lsp.MarkupKind{lsp.PlainText},
+						DeprecatedSupport:       false,
+						PreselectSupport:        false,
+					},
+					ContextSupport: false,
+				},
+				Hover: &lsp.TextDocumentClientCapabilitiesHover{
+					DynamicRegistration: false,
+					ContentFormat:       []lsp.MarkupKind{lsp.PlainText},
+				},
+			},
+		},
+	}
+
+	activeServers[s.language.Command+"-"+directory] = s
+	s.Active = true
+	s.root = directory
+
+	go s.receive()
+
+	s.lock.Lock()
+	go func() {
+		resp, err := s.sendRequest(lsp.MethodInitialize, params)
+		if err != nil {
+			log.Println("[micro-lsp]", err)
+			s.Active = false
+			s.lock.Unlock()
+			return
+		}
+
+		// todo parse capabilities
+		log.Println("[micro-lsp] <<<", string(resp))
+
+		var r RPCInit
+		json.Unmarshal(resp, &r)
+
+		s.lock.Unlock()
+		err = s.sendNotification(lsp.MethodInitialized, struct{}{})
+		if err != nil {
+			log.Println("[micro-lsp]", err)
+		}
+
+		s.capabilities = r.Result.Capabilities
+	}()
+}
+
+func (s *Server) Shutdown() {
+	s.sendRequest(lsp.MethodShutdown, nil)
+	s.sendNotification(lsp.MethodExit, nil)
+	s.Active = false
+}
+
+func (s *Server) receive() {
+	for s.Active {
+		resp, err := s.receiveMessage()
+		if err == io.EOF {
+			log.Println("Received EOF, shutting down")
+			s.Active = false
+			return
+		}
+		if err != nil {
+			log.Println("[micro-lsp,error]", err)
+			continue
+		}
+		log.Println("[micro-lsp] <<<", string(resp))
+
+		var r RPCResult
+		err = json.Unmarshal(resp, &r)
+		if err != nil {
+			log.Println("[micro-lsp]", err)
+			continue
+		}
+
+		switch r.Method {
+		case lsp.MethodWindowLogMessage:
+			// TODO
+		case lsp.MethodTextDocumentPublishDiagnostics:
+			// TODO
+		case "":
+			// Response
+			if _, ok := s.responses[r.ID]; ok {
+				log.Println("[micro-lsp] Got response for", r.ID)
+				s.responses[r.ID] <- resp
+			}
+		}
+	}
+}
+
+func (s *Server) receiveMessage() ([]byte, error) {
+	n := -1
+	for {
+		b, err := s.stdout.ReadBytes('\n')
+		if err != nil {
+			return nil, err
+		}
+		headerline := strings.TrimSpace(string(b))
+		if len(headerline) == 0 {
+			break
+		}
+		if strings.HasPrefix(headerline, "Content-Length:") {
+			split := strings.Split(headerline, ":")
+			if len(split) <= 1 {
+				break
+			}
+			n, err = strconv.Atoi(strings.TrimSpace(split[1]))
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	if n <= 0 {
+		return []byte{}, nil
+	}
+
+	bytes := make([]byte, n)
+	_, err := io.ReadFull(s.stdout, bytes)
+	if err != nil {
+		log.Println("[micro-lsp]", err)
+	}
+	return bytes, err
+}
+
+func (s *Server) sendNotification(method string, params interface{}) error {
+	m := RPCNotification{
+		RPCVersion: "2.0",
+		Method:     method,
+		Params:     params,
+	}
+
+	s.lock.Lock()
+	go s.sendMessageUnlock(m)
+	return nil
+}
+
+func (s *Server) sendRequest(method string, params interface{}) ([]byte, error) {
+	id := s.requestID
+	s.requestID++
+	r := make(chan []byte)
+	s.responses[id] = r
+
+	m := RPCRequest{
+		RPCVersion: "2.0",
+		ID:         id,
+		Method:     method,
+		Params:     params,
+	}
+
+	err := s.sendMessage(m)
+	if err != nil {
+		return nil, err
+	}
+
+	var bytes []byte
+	select {
+	case bytes = <-r:
+	case <-time.After(5 * time.Second):
+		err = errors.New("Request timed out")
+	}
+	delete(s.responses, id)
+
+	return bytes, err
+}
+
+func (s *Server) sendMessage(m interface{}) error {
+	msg, err := json.Marshal(m)
+	if err != nil {
+		return err
+	}
+
+	log.Println("[micro-lsp] >>>", string(msg))
+
+	// encode header and proper line endings
+	msg = append(msg, '\r', '\n')
+	header := []byte("Content-Length: " + strconv.Itoa(len(msg)) + "\r\n\r\n")
+	msg = append(header, msg...)
+
+	_, err = s.stdin.Write(msg)
+	return err
+}
+
+func (s *Server) sendMessageUnlock(m interface{}) error {
+	defer s.lock.Unlock()
+	return s.sendMessage(m)
+}

internal/lsp/servers_yaml.go

@@ -0,0 +1,67 @@
+package lsp
+
+var servers_internal = []byte(`language:
+  rust:
+    command: rls
+    install: [["rustup", "update"], ["rustup", "component", "add", "rls", "rust-analysis", "rust-src"]]
+  javascript:
+    command: typescript-language-server
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "typescript-language-server"]]
+  typescript:
+    command: typescript-language-server
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "typescript-language-server"]]
+  html:
+    command: html-languageserver
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "vscode-html-languageserver-bin"]]
+  ocaml:
+    command: ocaml-language-server
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "ocaml-language-server"]]
+  python:
+    command: pyls
+    install: [["pip", "install", "python-language-server"]]
+  c:
+    command: clangd
+    args: []
+  cpp:
+    command: clangd
+    args: []
+  haskell:
+    command: hie
+    args: ["--lsp"]
+  go:
+    command: gopls
+    args: ["serve"]
+    install: [["go", "get", "-u", "golang.org/x/tools/gopls"]]
+  dart:
+    command: dart_language_server
+    install: [["pub", "global", "activate", "dart_language_server"]]
+  ruby:
+    command: solargraph
+    args: ["stdio"]
+    install: [["gem", "install", "solargraph"]]
+  css:
+    command: css-languageserver
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "vscode-css-languageserver-bin"]]
+  scss:
+    command: css-languageserver
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "vscode-css-languageserver-bin"]]
+  viml:
+    command: vim-language-server
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "vim-language-server"]]
+  purescript:
+    command: purescript-language-server
+    args: ["--stdio"]
+    install: [["npm", "install", "-g", "purescript-language-server"]]
+  verilog:
+    command: svls
+    install: [["cargo", "install", "svls"]]
+  d:
+    command: serve-d
+`)

internal/lua/lua.go

@@ -1,7 +1,6 @@
 package lua
 
 import (
-	"archive/zip"
 	"bytes"
 	"errors"
 	"fmt"
@@ -10,7 +9,6 @@ import (
 	"math"
 	"math/rand"
 	"net"
-	"net/http"
 	"os"
 	"path"
 	"path/filepath"
@@ -76,10 +74,6 @@ func Import(pkg string) *lua.LTable {
 		return importUtf8()
 	case "humanize":
 		return importHumanize()
-	case "net/http", "http":
-		return importHTTP()
-	case "archive/zip":
-		return importArchiveZip()
 	default:
 		return nil
 	}
@@ -376,9 +370,9 @@ func importOs() *lua.LTable {
 	L.SetField(pkg, "Remove", luar.New(L, os.Remove))
 	L.SetField(pkg, "RemoveAll", luar.New(L, os.RemoveAll))
 	L.SetField(pkg, "Rename", luar.New(L, os.Rename))
-	L.SetField(pkg, "SEEK_CUR", luar.New(L, io.SeekCurrent))
-	L.SetField(pkg, "SEEK_END", luar.New(L, io.SeekEnd))
-	L.SetField(pkg, "SEEK_SET", luar.New(L, io.SeekStart))
+	L.SetField(pkg, "SEEK_CUR", luar.New(L, os.SEEK_CUR))
+	L.SetField(pkg, "SEEK_END", luar.New(L, os.SEEK_END))
+	L.SetField(pkg, "SEEK_SET", luar.New(L, os.SEEK_SET))
 	L.SetField(pkg, "SameFile", luar.New(L, os.SameFile))
 	L.SetField(pkg, "Setenv", luar.New(L, os.Setenv))
 	L.SetField(pkg, "StartProcess", luar.New(L, os.StartProcess))
@@ -389,7 +383,6 @@ func importOs() *lua.LTable {
 	L.SetField(pkg, "Symlink", luar.New(L, os.Symlink))
 	L.SetField(pkg, "TempDir", luar.New(L, os.TempDir))
 	L.SetField(pkg, "Truncate", luar.New(L, os.Truncate))
-	L.SetField(pkg, "UserHomeDir", luar.New(L, os.UserHomeDir))
 
 	return pkg
 }
@@ -577,22 +570,3 @@ func importHumanize() *lua.LTable {
 
 	return pkg
 }
-
-func importHTTP() *lua.LTable {
-	pkg := L.NewTable()
-
-	L.SetField(pkg, "Get", luar.New(L, http.Get))
-	L.SetField(pkg, "Post", luar.New(L, http.Post))
-
-	return pkg
-}
-
-func importArchiveZip() *lua.LTable {
-	pkg := L.NewTable()
-
-	L.SetField(pkg, "OpenReader", luar.New(L, zip.OpenReader))
-	L.SetField(pkg, "NewReader", luar.New(L, zip.NewReader))
-	L.SetField(pkg, "NewWriter", luar.New(L, zip.NewWriter))
-
-	return pkg
-}

internal/screen/screen.go

@@ -2,13 +2,12 @@ package screen
 
 import (
 	"errors"
-	"log"
 	"os"
 	"sync"
 
 	"github.com/zyedidia/micro/v2/internal/config"
 	"github.com/zyedidia/micro/v2/internal/util"
-	"github.com/zyedidia/tcell/v2"
+	"github.com/zyedidia/tcell"
 )
 
 // Screen is the tcell screen we use to draw to the terminal
@@ -79,10 +78,6 @@ func ShowFakeCursor(x, y int) {
 	lastCursor.style = style
 }
 
-func UseFake() bool {
-	return util.FakeCursor || config.GetGlobalOption("fakecursor").(bool)
-}
-
 // ShowFakeCursorMulti is the same as ShowFakeCursor except it does not
 // reset previous locations of the cursor
 // Fake cursors are also necessary to display multiple cursors
@@ -95,7 +90,7 @@ func ShowFakeCursorMulti(x, y int) {
 // if enabled or using the terminal cursor otherwise
 // By default only the windows console will use a fake cursor
 func ShowCursor(x, y int) {
-	if UseFake() {
+	if util.FakeCursor {
 		ShowFakeCursor(x, y)
 	} else {
 		Screen.ShowCursor(x, y)
@@ -110,7 +105,7 @@ func SetContent(x, y int, mainc rune, combc []rune, style tcell.Style) {
 	}
 
 	Screen.SetContent(x, y, mainc, combc, style)
-	if UseFake() && lastCursor.x == x && lastCursor.y == y {
+	if util.FakeCursor && lastCursor.x == x && lastCursor.y == y {
 		lastCursor.r = mainc
 		lastCursor.style = style
 		lastCursor.combc = combc
@@ -149,28 +144,16 @@ func Init() error {
 	}
 
 	var oldTerm string
-	modifiedTerm := false
-	setXterm := func() {
+	if config.GetGlobalOption("xterm").(bool) {
 		oldTerm = os.Getenv("TERM")
 		os.Setenv("TERM", "xterm-256color")
-		modifiedTerm = true
-	}
-
-	if config.GetGlobalOption("xterm").(bool) {
-		setXterm()
 	}
 
 	// Initilize tcell
 	var err error
 	Screen, err = tcell.NewScreen()
 	if err != nil {
-		log.Println("Warning: during screen initialization:", err)
-		log.Println("Falling back to TERM=xterm-256color")
-		setXterm()
-		Screen, err = tcell.NewScreen()
-		if err != nil {
-			return err
-		}
+		return err
 	}
 	if err = Screen.Init(); err != nil {
 		return err
@@ -179,7 +162,7 @@ func Init() error {
 	Screen.SetPaste(config.GetGlobalOption("paste").(bool))
 
 	// restore TERM
-	if modifiedTerm {
+	if config.GetGlobalOption("xterm").(bool) {
 		os.Setenv("TERM", oldTerm)
 	}
 

internal/shell/job.go

@@ -78,7 +78,7 @@ func JobSpawn(cmdName string, cmdArgs []string, onStdout, onStderr, onExit func(
 	go func() {
 		// Run the process in the background and create the onExit callback
 		proc.Run()
-		jobFunc := JobFunction{onExit, outbuf.String(), userargs}
+		jobFunc := JobFunction{onExit, string(outbuf.Bytes()), userargs}
 		Jobs <- jobFunc
 	}()
 

internal/shell/shell.go

@@ -8,6 +8,7 @@ import (
 	"os"
 	"os/exec"
 	"os/signal"
+	"strings"
 
 	shellquote "github.com/kballard/go-shellquote"
 	"github.com/zyedidia/micro/v2/internal/screen"
@@ -58,10 +59,15 @@ func RunBackgroundShell(input string) (func() string, error) {
 	inputCmd := args[0]
 	return func() string {
 		output, err := RunCommand(input)
+		totalLines := strings.Split(output, "\n")
 
 		str := output
-		if err != nil {
-			str = fmt.Sprint(inputCmd, " exited with error: ", err, ": ", output)
+		if len(totalLines) < 3 {
+			if err == nil {
+				str = fmt.Sprint(inputCmd, " exited without error")
+			} else {
+				str = fmt.Sprint(inputCmd, " exited with error: ", err, ": ", output)
+			}
 		}
 		return str
 	}, nil

internal/shell/terminal.go

@@ -79,8 +79,7 @@ func (t *Terminal) Start(execCmd []string, getOutput bool, wait bool, callback f
 	if getOutput {
 		t.output = bytes.NewBuffer([]byte{})
 	}
-	cmd.Stdout = t.output
-	Term, _, err := terminal.Start(&t.State, cmd)
+	Term, _, err := terminal.Start(&t.State, cmd, t.output)
 	if err != nil {
 		return err
 	}
@@ -129,13 +128,7 @@ func (t *Terminal) Close() {
 	// call the lua function that the user has given as a callback
 	if t.getOutput {
 		if t.callback != nil {
-			Jobs <- JobFunction{
-				Function: func(out string, args []interface{}) {
-					t.callback(out)
-				},
-				Output: t.output.String(),
-				Args:   nil,
-			}
+			t.callback(t.output.String())
 		}
 	}
 }

internal/util/util.go

@@ -1,12 +1,9 @@
 package util
 
 import (
-	"archive/zip"
 	"bytes"
 	"errors"
 	"fmt"
-	"io"
-	"net/http"
 	"os"
 	"os/user"
 	"path/filepath"
@@ -26,7 +23,7 @@ var (
 
 	// Version is the version number or commit hash
 	Version = "0.0.0-unknown"
-	// SemVersion is the Semantic version
+	// Semantic version
 	SemVersion semver.Version
 	// CommitHash is the commit this version was built on
 	CommitHash = "Unknown"
@@ -342,9 +339,9 @@ func EscapePath(path string) string {
 	path = filepath.ToSlash(path)
 	if runtime.GOOS == "windows" {
 		// ':' is not valid in a path name on Windows but is ok on Unix
-		path = strings.ReplaceAll(path, ":", "%")
+		path = strings.Replace(path, ":", "%", -1)
 	}
-	return strings.ReplaceAll(path, "/", "%")
+	return strings.Replace(path, "/", "%", -1)
 }
 
 // GetLeadingWhitespace returns the leading whitespace of the given byte array
@@ -422,88 +419,19 @@ func Clamp(val, min, max int) int {
 	return val
 }
 
-// IsNonAlphaNumeric returns if the rune is not a number of letter or underscore.
 func IsNonAlphaNumeric(c rune) bool {
 	return !unicode.IsLetter(c) && !unicode.IsNumber(c) && c != '_'
 }
 
-// IsAutocomplete returns whether a character should begin an autocompletion.
 func IsAutocomplete(c rune) bool {
-	return c == '.' || !IsNonAlphaNumeric(c)
+	return !unicode.IsSpace(c) || !IsNonAlphaNumeric(c)
 }
 
-// ParseSpecial replaces escaped ts with '\t'.
 func ParseSpecial(s string) string {
-	return strings.ReplaceAll(s, "\\t", "\t")
+	return strings.Replace(s, "\\t", "\t", -1)
 }
 
 // String converts a byte array to a string (for lua plugins)
 func String(s []byte) string {
 	return string(s)
 }
-
-// Unzip unzips a file to given folder
-func Unzip(src, dest string) error {
-	r, err := zip.OpenReader(src)
-	if err != nil {
-		return err
-	}
-	defer r.Close()
-
-	os.MkdirAll(dest, 0755)
-
-	// Closure to address file descriptors issue with all the deferred .Close() methods
-	extractAndWriteFile := func(f *zip.File) error {
-		rc, err := f.Open()
-		if err != nil {
-			return err
-		}
-		defer rc.Close()
-
-		path := filepath.Join(dest, f.Name)
-
-		// Check for ZipSlip (Directory traversal)
-		if !strings.HasPrefix(path, filepath.Clean(dest)+string(os.PathSeparator)) {
-			return fmt.Errorf("illegal file path: %s", path)
-		}
-
-		if f.FileInfo().IsDir() {
-			os.MkdirAll(path, f.Mode())
-		} else {
-			os.MkdirAll(filepath.Dir(path), f.Mode())
-			f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
-			if err != nil {
-				return err
-			}
-			defer f.Close()
-
-			_, err = io.Copy(f, rc)
-			if err != nil {
-				return err
-			}
-		}
-		return nil
-	}
-
-	for _, f := range r.File {
-		err := extractAndWriteFile(f)
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// HttpRequest returns a new http.Client for making custom requests (for lua plugins)
-func HttpRequest(method string, url string, headers []string) (resp *http.Response, err error) {
-	client := http.Client{}
-	req, err := http.NewRequest(method, url, nil)
-	if err != nil {
-		return nil, err
-	}
-	for i := 0; i < len(headers); i += 2 {
-		req.Header.Add(headers[i], headers[i+1])
-	}
-	return client.Do(req)
-}

pkg/highlight/highlighter.go

@@ -67,7 +67,6 @@ func combineLineMatch(src, dst LineMatch) LineMatch {
 // A State represents the region at the end of a line
 type State *region
 
-// EmptyDef is an empty definition.
 var EmptyDef = Def{nil, &rules{}}
 
 // LineStates is an interface for a buffer-like object which can also store the states and matches for every line
@@ -96,7 +95,19 @@ func NewHighlighter(def *Def) *Highlighter {
 // color's group (represented as one byte)
 type LineMatch map[int]Group
 
-func findIndex(regex *regexp.Regexp, skip *regexp.Regexp, str []byte) []int {
+func findIndex(regex *regexp.Regexp, skip *regexp.Regexp, str []byte, canMatchStart, canMatchEnd bool) []int {
+	regexStr := regex.String()
+	if strings.Contains(regexStr, "^") {
+		if !canMatchStart {
+			return nil
+		}
+	}
+	if strings.Contains(regexStr, "$") {
+		if !canMatchEnd {
+			return nil
+		}
+	}
+
 	var strbytes []byte
 	if skip != nil {
 		strbytes = skip.ReplaceAllFunc(str, func(match []byte) []byte {
@@ -115,7 +126,18 @@ func findIndex(regex *regexp.Regexp, skip *regexp.Regexp, str []byte) []int {
 	return []int{runePos(match[0], str), runePos(match[1], str)}
 }
 
-func findAllIndex(regex *regexp.Regexp, str []byte) [][]int {
+func findAllIndex(regex *regexp.Regexp, str []byte, canMatchStart, canMatchEnd bool) [][]int {
+	regexStr := regex.String()
+	if strings.Contains(regexStr, "^") {
+		if !canMatchStart {
+			return nil
+		}
+	}
+	if strings.Contains(regexStr, "$") {
+		if !canMatchEnd {
+			return nil
+		}
+	}
 	matches := regex.FindAllIndex(str, -1)
 	for i, m := range matches {
 		matches[i][0] = runePos(m[0], str)
@@ -134,33 +156,52 @@ func (h *Highlighter) highlightRegion(highlights LineMatch, start int, canMatchE
 		}
 	}
 
-	var firstRegion *region
-	firstLoc := []int{lineLen, 0}
-	searchNesting := true
-	endLoc := findIndex(curRegion.end, curRegion.skip, line)
-	if endLoc != nil {
-		if start == endLoc[0] {
-			searchNesting = false
-		} else {
-			firstLoc = endLoc
+	loc := findIndex(curRegion.end, curRegion.skip, line, start == 0, canMatchEnd)
+	if loc != nil {
+		if !statesOnly {
+			highlights[start+loc[0]] = curRegion.limitGroup
 		}
+		if curRegion.parent == nil {
+			if !statesOnly {
+				highlights[start+loc[1]] = 0
+				h.highlightRegion(highlights, start, false, lineNum, sliceEnd(line, loc[0]), curRegion, statesOnly)
+			}
+			h.highlightEmptyRegion(highlights, start+loc[1], canMatchEnd, lineNum, sliceStart(line, loc[1]), statesOnly)
+			return highlights
+		}
+		if !statesOnly {
+			highlights[start+loc[1]] = curRegion.parent.group
+			h.highlightRegion(highlights, start, false, lineNum, sliceEnd(line, loc[0]), curRegion, statesOnly)
+		}
+		h.highlightRegion(highlights, start+loc[1], canMatchEnd, lineNum, sliceStart(line, loc[1]), curRegion.parent, statesOnly)
+		return highlights
 	}
-	if searchNesting {
-		for _, r := range curRegion.rules.regions {
-			loc := findIndex(r.start, r.skip, line)
-			if loc != nil {
-				if loc[0] < firstLoc[0] {
-					firstLoc = loc
-					firstRegion = r
-				}
+
+	if lineLen == 0 {
+		if canMatchEnd {
+			h.lastRegion = curRegion
+		}
+
+		return highlights
+	}
+
+	firstLoc := []int{lineLen, 0}
+
+	var firstRegion *region
+	for _, r := range curRegion.rules.regions {
+		loc := findIndex(r.start, nil, line, start == 0, canMatchEnd)
+		if loc != nil {
+			if loc[0] < firstLoc[0] {
+				firstLoc = loc
+				firstRegion = r
 			}
 		}
 	}
-	if firstRegion != nil && firstLoc[0] != lineLen {
+	if firstLoc[0] != lineLen {
 		if !statesOnly {
 			highlights[start+firstLoc[0]] = firstRegion.limitGroup
 		}
-		h.highlightEmptyRegion(highlights, start+firstLoc[1], canMatchEnd, lineNum, sliceStart(line, firstLoc[1]), statesOnly)
+		h.highlightRegion(highlights, start, false, lineNum, sliceEnd(line, firstLoc[0]), curRegion, statesOnly)
 		h.highlightRegion(highlights, start+firstLoc[1], canMatchEnd, lineNum, sliceStart(line, firstLoc[1]), firstRegion, statesOnly)
 		return highlights
 	}
@@ -171,17 +212,11 @@ func (h *Highlighter) highlightRegion(highlights LineMatch, start int, canMatchE
 			fullHighlights[i] = curRegion.group
 		}
 
-		if searchNesting {
-			for _, p := range curRegion.rules.patterns {
-				if curRegion.group == curRegion.limitGroup || p.group == curRegion.limitGroup {
-					matches := findAllIndex(p.regex, line)
-					for _, m := range matches {
-						if ((endLoc == nil) || (m[0] < endLoc[0])) {
-							for i := m[0]; i < m[1]; i++ {
-								fullHighlights[i] = p.group
-							}
-						}
-					}
+		for _, p := range curRegion.rules.patterns {
+			matches := findAllIndex(p.regex, line, start == 0, canMatchEnd)
+			for _, m := range matches {
+				for i := m[0]; i < m[1]; i++ {
+					fullHighlights[i] = p.group
 				}
 			}
 		}
@@ -192,25 +227,6 @@ func (h *Highlighter) highlightRegion(highlights LineMatch, start int, canMatchE
 		}
 	}
 
-	loc := endLoc
-	if loc != nil {
-		if !statesOnly {
-			highlights[start+loc[0]] = curRegion.limitGroup
-		}
-		if curRegion.parent == nil {
-			if !statesOnly {
-				highlights[start+loc[1]] = 0
-			}
-			h.highlightEmptyRegion(highlights, start+loc[1], canMatchEnd, lineNum, sliceStart(line, loc[1]), statesOnly)
-			return highlights
-		}
-		if !statesOnly {
-			highlights[start+loc[1]] = curRegion.parent.group
-		}
-		h.highlightRegion(highlights, start+loc[1], canMatchEnd, lineNum, sliceStart(line, loc[1]), curRegion.parent, statesOnly)
-		return highlights
-	}
-
 	if canMatchEnd {
 		h.lastRegion = curRegion
 	}
@@ -227,10 +243,10 @@ func (h *Highlighter) highlightEmptyRegion(highlights LineMatch, start int, canM
 		return highlights
 	}
 
-	var firstRegion *region
 	firstLoc := []int{lineLen, 0}
+	var firstRegion *region
 	for _, r := range h.Def.rules.regions {
-		loc := findIndex(r.start, r.skip, line)
+		loc := findIndex(r.start, nil, line, start == 0, canMatchEnd)
 		if loc != nil {
 			if loc[0] < firstLoc[0] {
 				firstLoc = loc
@@ -238,7 +254,7 @@ func (h *Highlighter) highlightEmptyRegion(highlights LineMatch, start int, canM
 			}
 		}
 	}
-	if firstRegion != nil && firstLoc[0] != lineLen {
+	if firstLoc[0] != lineLen {
 		if !statesOnly {
 			highlights[start+firstLoc[0]] = firstRegion.limitGroup
 		}
@@ -257,7 +273,7 @@ func (h *Highlighter) highlightEmptyRegion(highlights LineMatch, start int, canM
 
 	fullHighlights := make([]Group, len(line))
 	for _, p := range h.Def.rules.patterns {
-		matches := findAllIndex(p.regex, line)
+		matches := findAllIndex(p.regex, line, start == 0, canMatchEnd)
 		for _, m := range matches {
 			for i := m[0]; i < m[1]; i++ {
 				fullHighlights[i] = p.group

runtime/colorschemes/atom-dark.micro

@@ -11,7 +11,6 @@ color-link special "#A6E22E,#1D1F21"
 color-link underlined "#D33682,#1D1F21"
 color-link error "bold #FF4444,#1D1F21"
 color-link todo "bold #FF8844,#1D1F21"
-color-link hlsearch "#000000,#B4EC85"
 color-link statusline "#1D1F21,#C5C8C6"
 color-link tabbar "#1D1F21,#C5C8C6"
 color-link indent-char "#505050,#1D1F21"

runtime/colorschemes/bubblegum.micro

@@ -12,7 +12,6 @@ color-link special "167,231"
 color-link error "231, 160"
 color-link underlined "underline 241,231"
 color-link todo "246,231"
-color-link hlsearch "231,136"
 color-link statusline "241,254"
 color-link tabbar "241,254"
 color-link diff-added "34"

runtime/colorschemes/cmc-16.micro

@@ -26,7 +26,6 @@ color-link special "magenta"
 color-link ignore "default"
 color-link error "bold ,brightred"
 color-link todo "underline black,brightyellow"
-color-link hlsearch "white,darkgreen"
 color-link indent-char ",brightgreen"
 color-link line-number "green"
 color-link line-number.scrollbar "green"

runtime/colorschemes/cmc-tc.micro

@@ -21,7 +21,6 @@ color-link special "#b57edc"
 color-link ignore "default"
 color-link error "bold ,#e34234"
 color-link todo "bold underline #888888,#f26522"
-color-link hlsearch "#b7b7b7,#32593d"
 color-link indent-char ",#bdecb6"
 color-link line-number "#bdecb6,#36393e"
 color-link line-number.scrollbar "#3eb489"

runtime/colorschemes/darcula.micro

@@ -12,7 +12,6 @@ color-link special "#CC8242,#242424"
 color-link underlined "#D33682,#242424"
 color-link error "bold #CB4B16,#242424"
 color-link todo "bold #D33682,#242424"
-color-link hlsearch "#CCCCCC,#32593D"
 color-link statusline "#242424,#CCCCCC"
 color-link tabbar "#242424,#CCCCCC"
 color-link indent-char "#4F4F4F,#242424"

runtime/colorschemes/default.micro

@@ -5,14 +5,13 @@ color-link constant "#AE81FF,#282828"
 color-link constant.string "#E6DB74,#282828"
 color-link constant.string.char "#BDE6AD,#282828"
 color-link statement "#F92672,#282828"
-color-link symbol.operator "#F92671,#282828"
+color-link symbol "#F92672,#282828"
 color-link preproc "#CB4B16,#282828"
 color-link type "#66D9EF,#282828"
 color-link special "#A6E22E,#282828"
 color-link underlined "#D33682,#282828"
 color-link error "bold #CB4B16,#282828"
 color-link todo "bold #D33682,#282828"
-color-link hlsearch "#282828,#E6DB74"
 color-link statusline "#282828,#F8F8F2"
 color-link tabbar "#282828,#F8F8F2"
 color-link indent-char "#505050,#282828"

runtime/colorschemes/dracula-tc.micro

@@ -1,45 +0,0 @@
-color-link default "#F8F8F2,#282A36"
-color-link comment "#6272A4"
-
-color-link identifier "#50FA7B"
-color-link identifier.class "#8BE9FD"
-color-link identifier.var "#F8F8F2"
-
-color-link constant "#BD93F9"
-color-link constant.number "#F8F8F2"
-color-link constant.string "#F1FA8C"
-
-color-link symbol "#FF79C6"
-color-link symbol.brackets "#F8F8F2"
-color-link symbol.tag "#AE81FF"
-
-color-link type "italic #8BE9FD"
-color-link type.keyword "#FF79C6"
-
-color-link special "#FF79C6"
-color-link statement "#FF79C6"
-color-link preproc "#FF79C6"
-
-color-link underlined "#FF79C6"
-color-link error "bold #FF5555"
-color-link todo "bold #FF79C6"
-
-color-link hlsearch "#282A36,#50FA7B"
-
-color-link diff-added "#50FA7B"
-color-link diff-modified "#FFB86C"
-color-link diff-deleted "#FF5555"
-
-color-link gutter-error "#FF5555"
-color-link gutter-warning "#E6DB74"
-
-color-link statusline "#282A36,#F8F8F2"
-color-link tabbar "#282A36,#F8F8F2"
-color-link indent-char "#6272A4"
-color-link line-number "#6272A4"
-color-link current-line-number "#F8F8F2"
-
-color-link cursor-line "#44475A,#F8F8F2"
-color-link color-column "#44475A"
-color-link type.extended "default"
-

runtime/colorschemes/dukedark-tc.micro

@@ -15,7 +15,6 @@ color-link divider "#001e28,#d0d0d0"
 color-link error "#cb4b16,#001e28"
 color-link gutter-error "#cb4b16,#001e28"
 color-link gutter-warning "#fce94f,#001e28"
-color-link hlsearch "#ffffff,#005028"
 color-link identifier "#00c8a0,#001e28"
 color-link identifier.class "#00c8a0,#001e28"
 color-link indent-char "#a0a0a0,#001e28"

runtime/colorschemes/dukelight-tc.micro

@@ -15,7 +15,6 @@ color-link divider "#f0f0f0,#004080"
 color-link error "#500000,#f0f0f0"
 color-link gutter-error "#500000,#f0f0f0"
 color-link gutter-warning "#dcc800,#f0f0f0"
-color-link hlsearch "#000000,#b8d8e8"
 color-link identifier "bold #0078a0,#f0f0f0"
 color-link identifier.class "bold #0078a0,#f0f0f0"
 color-link indent-char "#404040,#f0f0f0"

runtime/colorschemes/dukeubuntu-tc.micro

@@ -15,7 +15,6 @@ color-link divider "#2d0023,#d0d0d0"
 color-link error "#cb4b16,#2d0023"
 color-link gutter-error "#cb4b16,#2d0023"
 color-link gutter-warning "#fce94f,#2d0023"
-color-link hlsearch "#ffffff,#005028"
 color-link identifier "#00c8a0,#2d0023"
 color-link identifier.class "#00c8a0,#2d0023"
 color-link indent-char "#a0a0a0,#2d0023"

runtime/colorschemes/geany.micro

@@ -12,7 +12,6 @@ color-link type "blue"
 color-link type.extended "default"
 color-link error "red"
 color-link todo "bold cyan"
-color-link hlsearch "black,brightcyan"
 color-link indent-char "bold black"
 color-link line-number ""
 color-link current-line-number ""

runtime/colorschemes/gotham.micro

@@ -11,7 +11,6 @@ color-link special "#D26937,#0C1014"
 color-link underlined "#EDB443,#0C1014"
 color-link error "bold #C23127,#0C1014"
 color-link todo "bold #888CA6,#0C1014"
-color-link hlsearch "#091F2E,#EDB443"
 color-link statusline "#091F2E,#599CAB"
 color-link indent-char "#505050,#0C1014"
 color-link line-number "#245361,#11151C"

runtime/colorschemes/gruvbox-tc.micro

@@ -9,10 +9,8 @@ color-link statement "#fb4934,#282828"
 color-link preproc "#fb4934,235"
 color-link type "#fb4934,#282828"
 color-link special "#d79921,#282828"
-color-link underlined "underline #458588,#282828"
+color-link underlined "underline #282828"
 color-link error "#9d0006,#282828"
-color-link todo "bold #ebdbb2,#282828"
-color-link hlsearch "#282828,#fabd2f"
 color-link diff-added "#00AF00"
 color-link diff-modified "#FFAF00"
 color-link diff-deleted "#D70000"

runtime/colorschemes/gruvbox.micro

@@ -11,7 +11,6 @@ color-link special "172,235"
 color-link underlined "underline 109,235"
 color-link error "235,124"
 color-link todo "bold 223,235"
-color-link hlsearch "235,214"
 color-link diff-added "34"
 color-link diff-modified "214"
 color-link diff-deleted "160"

runtime/colorschemes/material-tc.micro

@@ -14,7 +14,6 @@ color-link divider "#263238,#80DEEA"
 color-link error "bold #263238,#F07178"
 color-link gutter-error "#EEFFFF,#F07178"
 color-link gutter-warning "#EEFFFF,#FFF176"
-color-link hlsearch "#FFFFFF,#546E7A"
 color-link identifier "#82AAFF,#263238"
 color-link identifier.macro "#FFCB6B,#263238"
 color-link indent-char "#505050,#263238"

runtime/colorschemes/monokai-dark.micro

@@ -11,7 +11,6 @@ color-link special "#A6E22E"
 color-link underlined "#D33682"
 color-link error "bold #CB4B16"
 color-link todo "bold #D33682"
-color-link hlsearch "#1D0000,#E6DB74"
 color-link statusline "#282828,#F8F8F2"
 color-link indent-char "#505050,#282828"
 color-link line-number "#AAAAAA,#282828"

runtime/colorschemes/monokai.micro

@@ -5,14 +5,13 @@ color-link constant "#AE81FF,#282828"
 color-link constant.string "#E6DB74,#282828"
 color-link constant.string.char "#BDE6AD,#282828"
 color-link statement "#F92672,#282828"
-color-link symbol.operator "#F92672,#282828"
+color-link symbol "#F92672,#282828"
 color-link preproc "#CB4B16,#282828"
 color-link type "#66D9EF,#282828"
 color-link special "#A6E22E,#282828"
 color-link underlined "#D33682,#282828"
 color-link error "bold #CB4B16,#282828"
 color-link todo "bold #D33682,#282828"
-color-link hlsearch "#282828,#E6DB74"
 color-link statusline "#282828,#F8F8F2"
 color-link tabbar "#282828,#F8F8F2"
 color-link indent-char "#505050,#282828"