Merge

Fixes #403

Makefile

@@ -1,22 +1,23 @@
 .PHONY: runtime
 
-VERSION = $(shell git describe --tags --abbrev=0)
+VERSION = $(shell go run tools/build-version.go)
 HASH = $(shell git rev-parse --short HEAD)
 DATE = $(shell go run tools/build-date.go)
 
 # Builds micro after checking dependencies but without updating the runtime
 build: deps tcell
-	go build -ldflags "-X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)'" ./cmd/micro
+	go build -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)'" ./cmd/micro
 
 # Builds micro after building the runtime and checking dependencies
 build-all: runtime build
 
 # Builds micro without checking for dependencies
 build-quick:
-	go build -ldflags "-X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)'" ./cmd/micro
+	go build -ldflags "-s -w -X main.Version=$(VERSION) -X main.CommitHash=$(HASH) -X 'main.CompileDate=$(DATE)'" ./cmd/micro
 
 # Same as 'build' but installs to $GOPATH/bin afterward
 install: build
+	mkdir -p $(GOPATH)/bin
 	mv micro $(GOPATH)/bin
 
 # Same as 'build-all' but installs to $GOPATH/bin afterward
@@ -24,6 +25,7 @@ install-all: runtime install
 
 # Same as 'build-quick' but installs to $GOPATH/bin afterward
 install-quick: build-quick
+	mkdir -p $(GOPATH)/bin
 	mv micro $(GOPATH)/bin
 
 # Updates tcell

README.md

@@ -31,17 +31,20 @@ To see more screenshots of micro, showcasing all of the default colorschemes, se
 * Cross platform (It should work on all the platforms Go runs on)
     * Note that while Windows is supported, there are still some bugs that need to be worked out
 * Plugin system (plugins are written in Lua)
+    * Micro has a built-in plugin manager to automatically install, remove, and update all your plugins
 * Persistent undo
 * Automatic linting and error notifications
 * Syntax highlighting (for over [75 languages](runtime/syntax)!)
 * Colorscheme support
     * By default, micro comes with 16, 256, and true color themes.
 * True color support (set the `MICRO_TRUECOLOR` env variable to 1 to enable it)
+* Snippets
+    * The snippet plugin can be installed with `> plugin install snippets`
 * Copy and paste with the system clipboard
 * Small and simple
 * Easily configurable
 * Macros
-* Common editor things such as undo/redo, line numbers, unicode support...
+* Common editor things such as undo/redo, line numbers, Unicode support...
 
 Although not yet implemented, I hope to add more features such as autocompletion ([#174](https://github.com/zyedidia/micro/issues/174)), and multiple cursors ([#5](https://github.com/zyedidia/micro/issues/5)) in the future.
 
@@ -49,7 +52,7 @@ Although not yet implemented, I hope to add more features such as autocompletion
 
 To install micro, you can download a [prebuilt binary](https://github.com/zyedidia/micro/releases), or you can build it from source.
 
-If you want more information about ways to install micro, see this [wiki page](https://github.com/zyedidia/micro/wiki/Installing-Micro)
+If you want more information about ways to install micro, see this [wiki page](https://github.com/zyedidia/micro/wiki/Installing-Micro).
 
 ### Prebuilt binaries
 
@@ -64,16 +67,15 @@ If you'd like to see more information after installing micro, run `micro -versio
 
 ### Homebrew
 
-You can also install micro using Homebrew:
+You can also install micro using Homebrew on Mac:
 
 ```
-$ brew tap zyedidia/micro
 $ brew install micro
 ```
 
 ### Building from source
 
-If your operating system does not have binary, but does run Go, you can build from source.
+If your operating system does not have a binary release, but does run Go, you can build from source.
 
 Make sure that you have Go version 1.5 or greater (Go 1.4 will work if your version supports CGO).
 
@@ -83,7 +85,7 @@ go get -u github.com/zyedidia/micro/...
 
 ### Linux clipboard support
 
-On Linux, clipboard support requires 'xclip' or 'xsel' command to be installed.
+On Linux, clipboard support requires the 'xclip' or 'xsel' commands to be installed.
 
 For Ubuntu:
 
@@ -99,7 +101,7 @@ If you open micro and it doesn't seem like syntax highlighting is working, this
 you are using a terminal which does not support 256 color. Try changing the colorscheme to `simple`
 by running `> set colorscheme simple`.
 
-If you are using the default ubuntu terminal, to enable 256 make sure your `TERM` variable is set
+If you are using the default Ubuntu terminal, to enable 256 make sure your `TERM` variable is set
 to `xterm-256color`.
 
 Many of the Windows terminals don't support more than 16 colors, which means
@@ -131,7 +133,7 @@ click to enable line selection.
 
 # Documentation and Help
 
-Micro has a built-in help system which you can access by pressing `CtrlE` and typing `help`. Additionally, you can
+Micro has a built-in help system which you can access by pressing `Ctrl-E` and typing `help`. Additionally, you can
 view the help files here:
 
 * [main help](https://github.com/zyedidia/micro/tree/master/runtime/help/help.md)
@@ -148,6 +150,6 @@ a brief introduction to the more powerful configuration features micro offers.
 
 If you find any bugs, please report them! I am also happy to accept pull requests from anyone.
 
-You can use the Github issue tracker to report bugs, ask questions, or suggest new features.
+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).

cmd/micro/actions.go

@@ -494,7 +494,7 @@ func (v *View) Backspace(usePlugin bool) bool {
 		// and restore the position
 
 		// If the user is using spaces instead of tabs and they are deleting
-		// whitespace at the start of the line, we should delete as if its a
+		// whitespace at the start of the line, we should delete as if it's a
 		// tab (tabSize number of spaces)
 		lineStart := v.Buf.Line(v.Cursor.Y)[:v.Cursor.X]
 		tabSize := int(v.Buf.Settings["tabsize"].(float64))
@@ -711,7 +711,7 @@ func (v *View) Save(usePlugin bool) bool {
 		return false
 	}
 
-	if v.Help {
+	if v.Type == vtHelp {
 		// We can't save the help text
 		return false
 	}
@@ -754,6 +754,21 @@ func (v *View) Save(usePlugin bool) bool {
 	return false
 }
 
+// SaveAs saves the buffer to disk with the given name
+func (v *View) SaveAs(usePlugin bool) bool {
+	filename, canceled := messenger.Prompt("Filename: ", "Save", NoCompletion)
+	if !canceled {
+		// the filename might or might not be quoted, so unquote first then join the strings.
+		filename = strings.Join(SplitCommandArgs(filename), " ")
+		v.Buf.Path = filename
+		v.Buf.Name = filename
+
+		v.Save(true)
+	}
+
+	return false
+}
+
 // Find opens a prompt and searches forward for the input
 func (v *View) Find(usePlugin bool) bool {
 	if usePlugin && !PreActionCall("Find", v) {
@@ -1243,7 +1258,7 @@ func (v *View) ToggleHelp(usePlugin bool) bool {
 		return false
 	}
 
-	if !v.Help {
+	if v.Type != vtHelp {
 		// Open the default help
 		v.openHelp("help")
 	} else {
@@ -1430,6 +1445,55 @@ func (v *View) NextTab(usePlugin bool) bool {
 	return false
 }
 
+// VSplitBinding opens an empty vertical split
+func (v *View) VSplitBinding(usePlugin bool) bool {
+	if usePlugin && !PreActionCall("VSplit", v) {
+		return false
+	}
+
+	v.VSplit(NewBuffer([]byte{}, ""))
+
+	if usePlugin {
+		return PostActionCall("VSplit", v)
+	}
+	return false
+}
+
+// HSplitBinding opens an empty horizontal split
+func (v *View) HSplitBinding(usePlugin bool) bool {
+	if usePlugin && !PreActionCall("HSplit", v) {
+		return false
+	}
+
+	v.HSplit(NewBuffer([]byte{}, ""))
+
+	if usePlugin {
+		return PostActionCall("HSplit", v)
+	}
+	return false
+}
+
+// Unsplit closes all splits in the current tab except the active one
+func (v *View) Unsplit(usePlugin bool) bool {
+	if usePlugin && !PreActionCall("Unsplit", v) {
+		return false
+	}
+
+	curView := tabs[curTab].curView
+	for i := len(tabs[curTab].views) - 1; i >= 0; i-- {
+		view := tabs[curTab].views[i]
+		if view != nil && view.Num != curView {
+			view.Quit(true)
+			// messenger.Message("Quit ", view.Buf.Path)
+		}
+	}
+
+	if usePlugin {
+		return PostActionCall("Unsplit", v)
+	}
+	return false
+}
+
 // NextSplit changes the view to the next split
 func (v *View) NextSplit(usePlugin bool) bool {
 	if usePlugin && !PreActionCall("NextSplit", v) {

cmd/micro/autocomplete.go

@@ -18,12 +18,14 @@ var pluginCompletions []func(string) []string
 func FileComplete(input string) (string, []string) {
 	var sep string = string(os.PathSeparator)
 	dirs := strings.Split(input, sep)
+
 	var files []os.FileInfo
 	var err error
 	if len(dirs) > 1 {
 		home, _ := homedir.Dir()
 
-		directories := strings.Join(dirs[:len(dirs)-1], sep)
+		directories := strings.Join(dirs[:len(dirs)-1], sep) + sep
+
 		if strings.HasPrefix(directories, "~") {
 			directories = strings.Replace(directories, "~", home, 1)
 		}
@@ -31,6 +33,7 @@ func FileComplete(input string) (string, []string) {
 	} else {
 		files, err = ioutil.ReadDir(".")
 	}
+
 	var suggestions []string
 	if err != nil {
 		return "", suggestions
@@ -81,9 +84,9 @@ func CommandComplete(input string) (string, []string) {
 func HelpComplete(input string) (string, []string) {
 	var suggestions []string
 
-	for _, topic := range helpFiles {
+	for _, file := range ListRuntimeFiles(RTHelp) {
+		topic := file.Name()
 		if strings.HasPrefix(topic, input) {
-
 			suggestions = append(suggestions, topic)
 		}
 	}
@@ -146,3 +149,29 @@ func PluginComplete(complete Completion, input string) (chosen string, suggestio
 	}
 	return
 }
+
+func PluginCmdComplete(input string) (chosen string, suggestions []string) {
+	for _, cmd := range []string{"install", "remove", "search", "update", "list"} {
+		if strings.HasPrefix(cmd, input) {
+			suggestions = append(suggestions, cmd)
+		}
+	}
+
+	if len(suggestions) == 1 {
+		chosen = suggestions[0]
+	}
+	return chosen, suggestions
+}
+
+func PluginNameComplete(input string) (chosen string, suggestions []string) {
+	for _, pp := range GetAllPluginPackages() {
+		if strings.HasPrefix(pp.Name, input) {
+			suggestions = append(suggestions, pp.Name)
+		}
+	}
+
+	if len(suggestions) == 1 {
+		chosen = suggestions[0]
+	}
+	return chosen, suggestions
+}

cmd/micro/bindings.go

@@ -5,7 +5,7 @@ import (
 	"os"
 	"strings"
 
-	"github.com/yosuke-furukawa/json5/encoding/json5"
+	"github.com/zyedidia/json5/encoding/json5"
 	"github.com/zyedidia/tcell"
 )
 
@@ -79,6 +79,9 @@ var bindingActions = map[string]func(*View, bool) bool{
 	"NextTab":             (*View).NextTab,
 	"NextSplit":           (*View).NextSplit,
 	"PreviousSplit":       (*View).PreviousSplit,
+	"Unsplit":             (*View).Unsplit,
+	"VSplit":              (*View).VSplitBinding,
+	"HSplit":              (*View).HSplitBinding,
 	"ToggleMacro":         (*View).ToggleMacro,
 	"PlayMacro":           (*View).PlayMacro,
 
@@ -205,12 +208,11 @@ var bindingKeys = map[string]tcell.Key{
 	"CtrlRightSq":    tcell.KeyCtrlRightSq,
 	"CtrlCarat":      tcell.KeyCtrlCarat,
 	"CtrlUnderscore": tcell.KeyCtrlUnderscore,
-	"Backspace":      tcell.KeyBackspace,
 	"Tab":            tcell.KeyTab,
 	"Esc":            tcell.KeyEsc,
 	"Escape":         tcell.KeyEscape,
 	"Enter":          tcell.KeyEnter,
-	"Backspace2":     tcell.KeyBackspace2,
+	"Backspace":      tcell.KeyBackspace2,
 
 	// I renamed these keys to PageUp and PageDown but I don't want to break someone's keybindings
 	"PgUp":   tcell.KeyPgUp,
@@ -267,7 +269,8 @@ modSearch:
 		case strings.HasPrefix(k, "-"):
 			// We optionally support dashes between modifiers
 			k = k[1:]
-		case strings.HasPrefix(k, "Ctrl"):
+		case strings.HasPrefix(k, "Ctrl") && k != "CtrlH":
+			// CtrlH technically does not have a 'Ctrl' modifier because it is really backspace
 			k = k[4:]
 			modifiers |= tcell.ModCtrl
 		case strings.HasPrefix(k, "Alt"):
@@ -373,10 +376,10 @@ func DefaultBindings() map[string]string {
 		"CtrlShiftDown":  "SelectToEnd",
 		"Enter":          "InsertNewline",
 		"Space":          "InsertSpace",
+		"CtrlH":          "Backspace",
 		"Backspace":      "Backspace",
-		"Backspace2":     "Backspace",
+		"Alt-CtrlH":      "DeleteWordLeft",
 		"Alt-Backspace":  "DeleteWordLeft",
-		"Alt-Backspace2": "DeleteWordLeft",
 		"Tab":            "IndentSelection,InsertTab",
 		"Backtab":        "OutdentSelection",
 		"CtrlO":          "OpenFile",
@@ -405,7 +408,6 @@ func DefaultBindings() map[string]string {
 		"CtrlR":          "ToggleRuler",
 		"CtrlL":          "JumpLine",
 		"Delete":         "Delete",
-		"Esc":            "ClearStatus",
 		"CtrlB":          "ShellMode",
 		"CtrlQ":          "Quit",
 		"CtrlE":          "CommandMode",
@@ -420,5 +422,13 @@ func DefaultBindings() map[string]string {
 		"Alt-e": "EndOfLine",
 		"Alt-p": "CursorUp",
 		"Alt-n": "CursorDown",
+
+		// Integration with file managers
+		"F1":  "ToggleHelp",
+		"F2":  "Save",
+		"F4":  "Quit",
+		"F7":  "Find",
+		"F10": "Quit",
+		"Esc": "Quit",
 	}
 }

cmd/micro/buffer.go

@@ -55,6 +55,16 @@ type SerializedBuffer struct {
 
 // NewBuffer creates a new buffer from `txt` with path and name `path`
 func NewBuffer(txt []byte, path string) *Buffer {
+	if path != "" {
+		for _, tab := range tabs {
+			for _, view := range tab.views {
+				if view.Buf.Path == path {
+					return view.Buf
+				}
+			}
+		}
+	}
+
 	b := new(Buffer)
 	b.LineArray = NewLineArray(txt)
 

cmd/micro/colorscheme.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"fmt"
-	"io/ioutil"
 	"regexp"
 	"strconv"
 	"strings"
@@ -16,66 +15,53 @@ type Colorscheme map[string]tcell.Style
 // The current colorscheme
 var colorscheme Colorscheme
 
-var preInstalledColors = []string{"default", "simple", "solarized", "solarized-tc", "atom-dark-tc", "monokai", "gruvbox", "zenburn", "bubblegum"}
-
 // ColorschemeExists checks if a given colorscheme exists
 func ColorschemeExists(colorschemeName string) bool {
-	files, _ := ioutil.ReadDir(configDir)
-	for _, f := range files {
-		if f.Name() == colorschemeName+".micro" {
-			return true
-		}
-	}
-
-	for _, name := range preInstalledColors {
-		if name == colorschemeName {
-			return true
-		}
-	}
-
-	return false
+	return FindRuntimeFile(RTColorscheme, colorschemeName) != nil
 }
 
 // InitColorscheme picks and initializes the colorscheme when micro starts
 func InitColorscheme() {
+	colorscheme = make(Colorscheme)
+	if screen != nil {
+		screen.SetStyle(tcell.StyleDefault.
+			Foreground(tcell.ColorDefault).
+			Background(tcell.ColorDefault))
+	}
+
 	LoadDefaultColorscheme()
 }
 
 // LoadDefaultColorscheme loads the default colorscheme from $(configDir)/colorschemes
 func LoadDefaultColorscheme() {
-	LoadColorscheme(globalSettings["colorscheme"].(string), configDir+"/colorschemes")
+	LoadColorscheme(globalSettings["colorscheme"].(string))
 }
 
 // LoadColorscheme loads the given colorscheme from a directory
-func LoadColorscheme(colorschemeName, dir string) {
-	files, _ := ioutil.ReadDir(dir)
-	found := false
-	for _, f := range files {
-		if f.Name() == colorschemeName+".micro" {
-			text, err := ioutil.ReadFile(dir + "/" + f.Name())
-			if err != nil {
-				fmt.Println("Error loading colorscheme:", err)
-				continue
-			}
-			colorscheme = ParseColorscheme(string(text))
-			found = true
-		}
-	}
-
-	for _, name := range preInstalledColors {
-		if name == colorschemeName {
-			data, err := Asset("runtime/colorschemes/" + name + ".micro")
-			if err != nil {
-				TermMessage("Unable to load pre-installed colorscheme " + name)
-				continue
-			}
-			colorscheme = ParseColorscheme(string(data))
-			found = true
-		}
-	}
-
-	if !found {
+func LoadColorscheme(colorschemeName string) {
+	file := FindRuntimeFile(RTColorscheme, colorschemeName)
+	if file == nil {
 		TermMessage(colorschemeName, "is not a valid colorscheme")
+	} else {
+		if data, err := file.Data(); err != nil {
+			fmt.Println("Error loading colorscheme:", err)
+		} else {
+			colorscheme = ParseColorscheme(string(data))
+
+			// Default style
+			defStyle = tcell.StyleDefault.
+				Foreground(tcell.ColorDefault).
+				Background(tcell.ColorDefault)
+
+			// There may be another default style defined in the colorscheme
+			// In that case we should use that one
+			if style, ok := colorscheme["default"]; ok {
+				defStyle = style
+			}
+			if screen != nil {
+				screen.SetStyle(defStyle)
+			}
+		}
 	}
 }
 
@@ -102,7 +88,12 @@ func ParseColorscheme(text string) Colorscheme {
 			link := string(matches[1])
 			colors := string(matches[2])
 
-			c[link] = StringToStyle(colors)
+			style := StringToStyle(colors)
+			c[link] = style
+
+			if link == "default" {
+				defStyle = style
+			}
 		} else {
 			fmt.Println("Color-link statement is not valid:", line)
 		}
@@ -115,8 +106,7 @@ func ParseColorscheme(text string) Colorscheme {
 // The strings must be in the format "extra foregroundcolor,backgroundcolor"
 // The 'extra' can be bold, reverse, or underline
 func StringToStyle(str string) tcell.Style {
-	var fg string
-	bg := "default"
+	var fg, bg string
 	split := strings.Split(str, ",")
 	if len(split) > 1 {
 		fg, bg = split[0], split[1]
@@ -126,7 +116,19 @@ func StringToStyle(str string) tcell.Style {
 	fg = strings.TrimSpace(fg)
 	bg = strings.TrimSpace(bg)
 
-	style := defStyle.Foreground(StringToColor(fg)).Background(StringToColor(bg))
+	var fgColor, bgColor tcell.Color
+	if fg == "" {
+		fgColor, _, _ = defStyle.Decompose()
+	} else {
+		fgColor = StringToColor(fg)
+	}
+	if bg == "" {
+		_, bgColor, _ = defStyle.Decompose()
+	} else {
+		bgColor = StringToColor(bg)
+	}
+
+	style := defStyle.Foreground(fgColor).Background(bgColor)
 	if strings.Contains(str, "bold") {
 		style = style.Bold(true)
 	}

cmd/micro/command.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
@@ -26,18 +27,21 @@ type StrCommand struct {
 var commands map[string]Command
 
 var commandActions = map[string]func([]string){
-	"Set":      Set,
-	"SetLocal": SetLocal,
-	"Show":     Show,
-	"Run":      Run,
-	"Bind":     Bind,
-	"Quit":     Quit,
-	"Save":     Save,
-	"Replace":  Replace,
-	"VSplit":   VSplit,
-	"HSplit":   HSplit,
-	"Tab":      NewTab,
-	"Help":     Help,
+	"Set":       Set,
+	"SetLocal":  SetLocal,
+	"Show":      Show,
+	"Run":       Run,
+	"Bind":      Bind,
+	"Quit":      Quit,
+	"Save":      Save,
+	"Replace":   Replace,
+	"VSplit":    VSplit,
+	"HSplit":    HSplit,
+	"Tab":       NewTab,
+	"Help":      Help,
+	"Eval":      Eval,
+	"ToggleLog": ToggleLog,
+	"Plugin":    PluginCmd,
 }
 
 // InitCommands initializes the default commands
@@ -82,6 +86,95 @@ func DefaultCommands() map[string]StrCommand {
 		"hsplit":   {"HSplit", []Completion{FileCompletion, NoCompletion}},
 		"tab":      {"Tab", []Completion{FileCompletion, NoCompletion}},
 		"help":     {"Help", []Completion{HelpCompletion, NoCompletion}},
+		"eval":     {"Eval", []Completion{NoCompletion}},
+		"log":      {"ToggleLog", []Completion{NoCompletion}},
+		"plugin":   {"Plugin", []Completion{PluginCmdCompletion, PluginNameCompletion}},
+	}
+}
+
+// PluginCmd installs, removes, updates, lists, or searches for given plugins
+func PluginCmd(args []string) {
+	if len(args) >= 1 {
+		switch args[0] {
+		case "install":
+			installedVersions := GetInstalledVersions(false)
+			for _, plugin := range args[1:] {
+				pp := GetAllPluginPackages().Get(plugin)
+				if pp == nil {
+					messenger.Error("Unknown plugin \"" + plugin + "\"")
+				} else if err := pp.IsInstallable(); err != nil {
+					messenger.Error("Error installing ", plugin, ": ", err)
+				} else {
+					for _, installed := range installedVersions {
+						if pp.Name == installed.pack.Name {
+							if pp.Versions[0].Version.Compare(installed.Version) == 1 {
+								messenger.Error(pp.Name, " is already installed but out-of-date: use 'plugin update ", pp.Name, "' to update")
+							} else {
+								messenger.Error(pp.Name, " is already installed")
+							}
+						}
+					}
+					pp.Install()
+				}
+			}
+		case "remove":
+			removed := ""
+			for _, plugin := range args[1:] {
+				// check if the plugin exists.
+				for _, lp := range loadedPlugins {
+					if lp == plugin {
+						UninstallPlugin(plugin)
+						removed += plugin + " "
+						continue
+					}
+				}
+			}
+			if !IsSpaces(removed) {
+				messenger.Message("Removed ", removed)
+			} else {
+				messenger.Error("The requested plugins do not exist")
+			}
+		case "update":
+			UpdatePlugins(args[1:])
+		case "list":
+			plugins := GetInstalledVersions(false)
+			messenger.AddLog("----------------")
+			messenger.AddLog("The following plugins are currently installed:\n")
+			for _, p := range plugins {
+				messenger.AddLog(fmt.Sprintf("%s (%s)", p.pack.Name, p.Version))
+			}
+			messenger.AddLog("----------------")
+			if len(plugins) > 0 {
+				if CurView().Type != vtLog {
+					ToggleLog([]string{})
+				}
+			}
+		case "search":
+			plugins := SearchPlugin(args[1:])
+			messenger.Message(len(plugins), " plugins found")
+			for _, p := range plugins {
+				messenger.AddLog("----------------")
+				messenger.AddLog(p.String())
+			}
+			messenger.AddLog("----------------")
+			if len(plugins) > 0 {
+				if CurView().Type != vtLog {
+					ToggleLog([]string{})
+				}
+			}
+		}
+	} else {
+		messenger.Error("Not enough arguments")
+	}
+}
+
+func ToggleLog(args []string) {
+	buffer := messenger.getBuffer()
+	if CurView().Type != vtLog {
+		CurView().HSplit(buffer)
+		CurView().Type = vtLog
+	} else {
+		CurView().Quit(true)
 	}
 }
 
@@ -92,7 +185,7 @@ func Help(args []string) {
 		CurView().openHelp("help")
 	} else {
 		helpPage := args[0]
-		if _, ok := helpPages[helpPage]; ok {
+		if FindRuntimeFile(RTHelp, helpPage) != nil {
 			CurView().openHelp(helpPage)
 		} else {
 			messenger.Error("Sorry, no help for ", helpPage)
@@ -144,6 +237,18 @@ func HSplit(args []string) {
 	}
 }
 
+// Eval evaluates a lua expression
+func Eval(args []string) {
+	if len(args) >= 1 {
+		err := L.DoString(args[0])
+		if err != nil {
+			messenger.Error(err)
+		}
+	} else {
+		messenger.Error("Not enough arguments")
+	}
+}
+
 // NewTab opens the given file in a new tab
 func NewTab(args []string) {
 	if len(args) == 0 {
@@ -237,8 +342,12 @@ func Quit(args []string) {
 
 // Save saves the buffer in the main view
 func Save(args []string) {
-	// Save the main view
-	CurView().Save(true)
+	if len(args) == 0 {
+		// Save the main view
+		CurView().Save(true)
+	} else {
+		CurView().Buf.SaveAs(args[0])
+	}
 }
 
 // Replace runs search and replace
@@ -305,13 +414,25 @@ func Replace(args []string) {
 			}
 		}
 	} else {
-		for {
-			match := regex.FindStringIndex(view.Buf.String())
-			if match == nil {
-				break
+		matches := regex.FindAllStringIndex(view.Buf.String(), -1)
+		if matches != nil && len(matches) > 0 {
+			adjust := 0
+			prevMatch := matches[0]
+			from := FromCharPos(prevMatch[0], view.Buf)
+			to := from.Move(Count(search), view.Buf)
+			adjust += Count(replace) - Count(search)
+			view.Buf.Replace(from, to, replace)
+			if len(matches) > 1 {
+				for _, match := range matches[1:] {
+					found++
+					from = from.Move(match[0]-prevMatch[0]+adjust, view.Buf)
+					to := from.Move(Count(search), view.Buf)
+					// TermMessage(match[0], " ", prevMatch[0], " ", adjust, "\n", from, " ", to)
+					view.Buf.Replace(from, to, replace)
+					prevMatch = match
+					// adjust += Count(replace) - Count(search)
+				}
 			}
-			found++
-			view.Buf.Replace(FromCharPos(match[0], view.Buf), FromCharPos(match[1], view.Buf), replace)
 		}
 	}
 	view.Cursor.Relocate()

cmd/micro/eventhandler.go

@@ -1,9 +1,11 @@
 package main
 
 import (
+	"strings"
 	"time"
 
 	dmp "github.com/sergi/go-diff/diffmatchpatch"
+	"github.com/yuin/gopher-lua"
 )
 
 const (
@@ -114,6 +116,17 @@ func (eh *EventHandler) Execute(t *TextEvent) {
 		eh.RedoStack = new(Stack)
 	}
 	eh.UndoStack.Push(t)
+
+	for _, pl := range loadedPlugins {
+		ret, err := Call(pl+".onBeforeTextEvent", t)
+		if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
+			TermMessage(err)
+		}
+		if val, ok := ret.(lua.LBool); ok && val == lua.LFalse {
+			return
+		}
+	}
+
 	ExecuteTextEvent(t, eh.buf)
 }
 

cmd/micro/help.go

@@ -1,25 +0,0 @@
-package main
-
-var helpPages map[string]string
-
-var helpFiles = []string{
-	"help",
-	"keybindings",
-	"plugins",
-	"colors",
-	"options",
-	"commands",
-	"tutorial",
-}
-
-// LoadHelp loads the help text from inside the binary
-func LoadHelp() {
-	helpPages = make(map[string]string)
-	for _, file := range helpFiles {
-		data, err := Asset("runtime/help/" + file + ".md")
-		if err != nil {
-			TermMessage("Unable to load help text", file)
-		}
-		helpPages[file] = string(data)
-	}
-}

cmd/micro/highlighter.go

@@ -1,11 +1,10 @@
 package main
 
 import (
-	"github.com/zyedidia/tcell"
-	"io/ioutil"
-	"path/filepath"
 	"regexp"
 	"strings"
+
+	"github.com/zyedidia/tcell"
 )
 
 // FileTypeRules represents a complete set of syntax rules for a filetype
@@ -29,151 +28,16 @@ type SyntaxRule struct {
 
 var syntaxFiles map[[2]*regexp.Regexp]FileTypeRules
 
-// These syntax files are pre installed and embedded in the resulting binary by go-bindata
-var preInstalledSynFiles = []string{
-	"Dockerfile",
-	"apacheconf",
-	"arduino",
-	"asciidoc",
-	"asm",
-	"awk",
-	"c",
-	"caddyfile",
-	"cmake",
-	"coffeescript",
-	"colortest",
-	"conf",
-	"conky",
-	"csharp",
-	"css",
-	"cython",
-	"d",
-	"dart",
-	"dot",
-	"erb",
-	"fish",
-	"fortran",
-	"gdscript",
-	"gentoo-ebuild",
-	"gentoo-etc-portage",
-	"git-commit",
-	"git-config",
-	"git-rebase-todo",
-	"glsl",
-	"go",
-	"golo",
-	"groff",
-	"haml",
-	"haskell",
-	"html",
-	"ini",
-	"inputrc",
-	"java",
-	"javascript",
-	"json",
-	"keymap",
-	"kickstart",
-	"ledger",
-	"lilypond",
-	"lisp",
-	"lua",
-	"makefile",
-	"man",
-	"markdown",
-	"mpdconf",
-	"micro",
-	"nanorc",
-	"nginx",
-	"ocaml",
-	"pascal",
-	"patch",
-	"peg",
-	"perl",
-	"perl6",
-	"php",
-	"pkg-config",
-	"pkgbuild",
-	"po",
-	"pov",
-	"privoxy-action",
-	"privoxy-config",
-	"privoxy-filter",
-	"puppet",
-	"python",
-	"r",
-	"reST",
-	"rpmspec",
-	"ruby",
-	"rust",
-	"scala",
-	"sed",
-	"sh",
-	"sls",
-	"sql",
-	"swift",
-	"systemd",
-	"tcl",
-	"tex",
-	"vala",
-	"vi",
-	"xml",
-	"xresources",
-	"yaml",
-	"yum",
-	"zsh",
-}
-
 // LoadSyntaxFiles loads the syntax files from the default directory (configDir)
 func LoadSyntaxFiles() {
-	// Load the user's custom syntax files, if there are any
-	LoadSyntaxFilesFromDir(configDir + "/syntax")
-
-	// Load the pre-installed syntax files from inside the binary
-	for _, filetype := range preInstalledSynFiles {
-		data, err := Asset("runtime/syntax/" + filetype + ".micro")
-		if err != nil {
-			TermMessage("Unable to load pre-installed syntax file " + filetype)
-			continue
-		}
-
-		LoadSyntaxFile(string(data), filetype+".micro")
-	}
-}
-
-// LoadSyntaxFilesFromDir loads the syntax files from a specified directory
-// To load the syntax files, we must fill the `syntaxFiles` map
-// This involves finding the regex for syntax and if it exists, the regex
-// for the header. Then we must get the text for the file and the filetype.
-func LoadSyntaxFilesFromDir(dir string) {
-	colorscheme = make(Colorscheme)
 	InitColorscheme()
-
-	// Default style
-	defStyle = tcell.StyleDefault.
-		Foreground(tcell.ColorDefault).
-		Background(tcell.ColorDefault)
-
-	// There may be another default style defined in the colorscheme
-	// In that case we should use that one
-	if style, ok := colorscheme["default"]; ok {
-		defStyle = style
-	}
-	if screen != nil {
-		screen.SetStyle(defStyle)
-	}
-
 	syntaxFiles = make(map[[2]*regexp.Regexp]FileTypeRules)
-	files, _ := ioutil.ReadDir(dir)
-	for _, f := range files {
-		if filepath.Ext(f.Name()) == ".micro" {
-			filename := dir + "/" + f.Name()
-			text, err := ioutil.ReadFile(filename)
-
-			if err != nil {
-				TermMessage("Error loading syntax file " + filename + ": " + err.Error())
-				return
-			}
-			LoadSyntaxFile(string(text), filename)
+	for _, f := range ListRuntimeFiles(RTSyntax) {
+		data, err := f.Data()
+		if err != nil {
+			TermMessage("Error loading syntax file " + f.Name() + ": " + err.Error())
+		} else {
+			LoadSyntaxFile(string(data), f.Name())
 		}
 	}
 }

cmd/micro/messenger.go

@@ -21,6 +21,7 @@ func TermMessage(msg ...interface{}) {
 	screenWasNil := screen == nil
 	if !screenWasNil {
 		screen.Fini()
+		screen = nil
 	}
 
 	fmt.Println(msg...)
@@ -43,6 +44,7 @@ func TermError(filename string, lineNum int, err string) {
 // Messenger is an object that makes it easy to send messages to the user
 // and get input from the user
 type Messenger struct {
+	log *Buffer
 	// Are we currently prompting the user?
 	hasPrompt bool
 	// Is there a message to print
@@ -67,16 +69,30 @@ type Messenger struct {
 	gutterMessage bool
 }
 
+func (m *Messenger) AddLog(msg string) {
+	buffer := m.getBuffer()
+	buffer.insert(buffer.End(), []byte(msg+"\n"))
+	buffer.Cursor.Loc = buffer.End()
+	buffer.Cursor.Relocate()
+}
+
+func (m *Messenger) getBuffer() *Buffer {
+	if m.log == nil {
+		m.log = NewBuffer([]byte{}, "")
+		m.log.Name = "Log"
+	}
+	return m.log
+}
+
 // Message sends a message to the user
 func (m *Messenger) Message(msg ...interface{}) {
-	buf := new(bytes.Buffer)
-	fmt.Fprint(buf, msg...)
-	m.message = buf.String()
+	m.message = fmt.Sprint(msg...)
 	m.style = defStyle
 
 	if _, ok := colorscheme["message"]; ok {
 		m.style = colorscheme["message"]
 	}
+	m.AddLog(m.message)
 	m.hasMessage = true
 }
 
@@ -92,6 +108,7 @@ func (m *Messenger) Error(msg ...interface{}) {
 	if _, ok := colorscheme["error-message"]; ok {
 		m.style = colorscheme["error-message"]
 	}
+	m.AddLog(m.message)
 	m.hasMessage = true
 }
 
@@ -113,13 +130,16 @@ func (m *Messenger) YesNoPrompt(prompt string) (bool, bool) {
 			switch e.Key() {
 			case tcell.KeyRune:
 				if e.Rune() == 'y' {
+					m.AddLog("\t--> y")
 					m.hasPrompt = false
 					return true, false
 				} else if e.Rune() == 'n' {
+					m.AddLog("\t--> n")
 					m.hasPrompt = false
 					return false, false
 				}
 			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
+				m.AddLog("\t--> (cancel)")
 				m.hasPrompt = false
 				return false, true
 			}
@@ -146,6 +166,7 @@ func (m *Messenger) LetterPrompt(prompt string, responses ...rune) (rune, bool)
 			case tcell.KeyRune:
 				for _, r := range responses {
 					if e.Rune() == r {
+						m.AddLog("\t--> " + string(r))
 						m.Clear()
 						m.Reset()
 						m.hasPrompt = false
@@ -153,6 +174,7 @@ func (m *Messenger) LetterPrompt(prompt string, responses ...rune) (rune, bool)
 					}
 				}
 			case tcell.KeyCtrlC, tcell.KeyCtrlQ, tcell.KeyEscape:
+				m.AddLog("\t--> (cancel)")
 				m.Clear()
 				m.Reset()
 				m.hasPrompt = false
@@ -170,6 +192,8 @@ const (
 	CommandCompletion
 	HelpCompletion
 	OptionCompletion
+	PluginCmdCompletion
+	PluginNameCompletion
 )
 
 // Prompt sends the user a message and waits for a response to be typed in
@@ -198,9 +222,11 @@ func (m *Messenger) Prompt(prompt, historyType string, completionTypes ...Comple
 			switch e.Key() {
 			case tcell.KeyCtrlQ, tcell.KeyCtrlC, tcell.KeyEscape:
 				// Cancel
+				m.AddLog("\t--> (cancel)")
 				m.hasPrompt = false
 			case tcell.KeyEnter:
 				// User is done entering their response
+				m.AddLog("\t--> " + m.response)
 				m.hasPrompt = false
 				response, canceled = m.response, false
 				m.history[historyType][len(m.history[historyType])-1] = response
@@ -231,6 +257,10 @@ func (m *Messenger) Prompt(prompt, historyType string, completionTypes ...Comple
 					chosen, suggestions = HelpComplete(currentArg)
 				} else if completionType == OptionCompletion {
 					chosen, suggestions = OptionComplete(currentArg)
+				} else if completionType == PluginCmdCompletion {
+					chosen, suggestions = PluginCmdComplete(currentArg)
+				} else if completionType == PluginNameCompletion {
+					chosen, suggestions = PluginNameComplete(currentArg)
 				} else if completionType < NoCompletion {
 					chosen, suggestions = PluginComplete(completionType, currentArg)
 				}
@@ -269,36 +299,58 @@ func (m *Messenger) Prompt(prompt, historyType string, completionTypes ...Comple
 func (m *Messenger) HandleEvent(event tcell.Event, history []string) {
 	switch e := event.(type) {
 	case *tcell.EventKey:
+		if e.Key() != tcell.KeyRune || e.Modifiers() != 0 {
+			for key, actions := range bindings {
+				if e.Key() == key.keyCode {
+					if e.Key() == tcell.KeyRune {
+						if e.Rune() != key.r {
+							continue
+						}
+					}
+					if e.Modifiers() == key.modifiers {
+						for _, action := range actions {
+							funcName := FuncName(action)
+							switch funcName {
+							case "main.(*View).CursorUp":
+								if m.historyNum > 0 {
+									m.historyNum--
+									m.response = history[m.historyNum]
+									m.cursorx = Count(m.response)
+								}
+							case "main.(*View).CursorDown":
+								if m.historyNum < len(history)-1 {
+									m.historyNum++
+									m.response = history[m.historyNum]
+									m.cursorx = Count(m.response)
+								}
+							case "main.(*View).CursorLeft":
+								if m.cursorx > 0 {
+									m.cursorx--
+								}
+							case "main.(*View).CursorRight":
+								if m.cursorx < Count(m.response) {
+									m.cursorx++
+								}
+							case "main.(*View).CursorStart", "main.(*View).StartOfLine":
+								m.cursorx = 0
+							case "main.(*View).CursorEnd", "main.(*View).EndOfLine":
+								m.cursorx = Count(m.response)
+							case "main.(*View).Backspace":
+								if m.cursorx > 0 {
+									m.response = string([]rune(m.response)[:m.cursorx-1]) + string([]rune(m.response)[m.cursorx:])
+									m.cursorx--
+								}
+							case "main.(*View).Paste":
+								clip, _ := clipboard.ReadAll("clipboard")
+								m.response = Insert(m.response, m.cursorx, clip)
+								m.cursorx += Count(clip)
+							}
+						}
+					}
+				}
+			}
+		}
 		switch e.Key() {
-		case tcell.KeyUp:
-			if m.historyNum > 0 {
-				m.historyNum--
-				m.response = history[m.historyNum]
-				m.cursorx = Count(m.response)
-			}
-		case tcell.KeyDown:
-			if m.historyNum < len(history)-1 {
-				m.historyNum++
-				m.response = history[m.historyNum]
-				m.cursorx = Count(m.response)
-			}
-		case tcell.KeyLeft:
-			if m.cursorx > 0 {
-				m.cursorx--
-			}
-		case tcell.KeyRight:
-			if m.cursorx < Count(m.response) {
-				m.cursorx++
-			}
-		case tcell.KeyBackspace2, tcell.KeyBackspace:
-			if m.cursorx > 0 {
-				m.response = string([]rune(m.response)[:m.cursorx-1]) + string([]rune(m.response)[m.cursorx:])
-				m.cursorx--
-			}
-		case tcell.KeyCtrlV:
-			clip, _ := clipboard.ReadAll("clipboard")
-			m.response = Insert(m.response, m.cursorx, clip)
-			m.cursorx += Count(clip)
 		case tcell.KeyRune:
 			m.response = Insert(m.response, m.cursorx, string(e.Rune()))
 			m.cursorx++
@@ -309,6 +361,23 @@ func (m *Messenger) HandleEvent(event tcell.Event, history []string) {
 		clip := e.Text()
 		m.response = Insert(m.response, m.cursorx, clip)
 		m.cursorx += Count(clip)
+	case *tcell.EventMouse:
+		x, y := e.Position()
+		x -= Count(m.message)
+		button := e.Buttons()
+		_, screenH := screen.Size()
+
+		if y == screenH-1 {
+			switch button {
+			case tcell.Button1:
+				m.cursorx = x
+				if m.cursorx < 0 {
+					m.cursorx = 0
+				} else if m.cursorx > Count(m.response) {
+					m.cursorx = Count(m.response)
+				}
+			}
+		}
 	}
 }
 

cmd/micro/micro.go

@@ -5,8 +5,10 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"runtime"
 	"strings"
+	"time"
 
 	"github.com/go-errors/errors"
 	"github.com/layeh/gopher-luar"
@@ -23,6 +25,7 @@ const (
 	synLinesDown         = 75  // How many lines down to look to do syntax highlighting
 	doubleClickThreshold = 400 // How many milliseconds to wait before a second click is not a double click
 	undoThreshold        = 500 // If two events are less than n milliseconds apart, undo both of them
+	autosaveTime         = 8   // Number of seconds to wait before autosaving
 )
 
 var (
@@ -60,7 +63,8 @@ var (
 	// Channel of jobs running in the background
 	jobs chan JobFunction
 	// Event channel
-	events chan tcell.Event
+	events   chan tcell.Event
+	autosave chan bool
 )
 
 // LoadInput determines which files should be loaded into buffers
@@ -233,18 +237,15 @@ func main() {
 	// Find the user's configuration directory (probably $XDG_CONFIG_HOME/micro)
 	InitConfigDir()
 
+	// Build a list of available Extensions (Syntax, Colorscheme etc.)
+	InitRuntimeFiles()
+
 	// Load the user's settings
 	InitGlobalSettings()
 
 	InitCommands()
 	InitBindings()
 
-	// Load the syntax files, including the colorscheme
-	LoadSyntaxFiles()
-
-	// Load the help files
-	LoadHelp()
-
 	// Start the screen
 	InitScreen()
 
@@ -280,6 +281,8 @@ func main() {
 					v.matches = Match(v)
 				}
 			}
+
+			t.Resize()
 		}
 	}
 
@@ -308,19 +311,39 @@ func main() {
 	L.SetGlobal("GetLeadingWhitespace", luar.New(L, GetLeadingWhitespace))
 	L.SetGlobal("MakeCompletion", luar.New(L, MakeCompletion))
 	L.SetGlobal("NewBuffer", luar.New(L, NewBuffer))
+	L.SetGlobal("RuneStr", luar.New(L, func(r rune) string {
+		return string(r)
+	}))
+	L.SetGlobal("Loc", luar.New(L, func(x, y int) Loc {
+		return Loc{x, y}
+	}))
+	L.SetGlobal("JoinPaths", luar.New(L, filepath.Join))
+	L.SetGlobal("configDir", luar.New(L, configDir))
 
 	// Used for asynchronous jobs
 	L.SetGlobal("JobStart", luar.New(L, JobStart))
 	L.SetGlobal("JobSend", luar.New(L, JobSend))
 	L.SetGlobal("JobStop", luar.New(L, JobStop))
 
-	LoadPlugins()
+	// Extension Files
+	L.SetGlobal("ReadRuntimeFile", luar.New(L, PluginReadRuntimeFile))
+	L.SetGlobal("ListRuntimeFiles", luar.New(L, PluginListRuntimeFiles))
+	L.SetGlobal("AddRuntimeFile", luar.New(L, PluginAddRuntimeFile))
+	L.SetGlobal("AddRuntimeFilesFromDirectory", luar.New(L, PluginAddRuntimeFilesFromDirectory))
 
 	jobs = make(chan JobFunction, 100)
-	events = make(chan tcell.Event)
+	events = make(chan tcell.Event, 100)
+	autosave = make(chan bool)
+
+	LoadPlugins()
+
+	// Load the syntax files, including the colorscheme
+	LoadSyntaxFiles()
 
 	for _, t := range tabs {
 		for _, v := range t.views {
+			v.Buf.FindFileType()
+			v.Buf.UpdateRules()
 			for _, pl := range loadedPlugins {
 				_, err := Call(pl+".onViewOpen", v)
 				if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
@@ -341,6 +364,15 @@ func main() {
 		}
 	}()
 
+	go func() {
+		for {
+			time.Sleep(autosaveTime * time.Second)
+			if globalSettings["autosave"].(bool) {
+				autosave <- true
+			}
+		}
+	}()
+
 	for {
 		// Display everything
 		RedrawAll()
@@ -353,50 +385,61 @@ func main() {
 			// If a new job has finished while running in the background we should execute the callback
 			f.function(f.output, f.args...)
 			continue
+		case <-autosave:
+			CurView().Save(true)
 		case event = <-events:
 		}
 
-		switch e := event.(type) {
-		case *tcell.EventMouse:
-			if e.Buttons() == tcell.Button1 {
-				// If the user left clicked we check a couple things
-				_, h := screen.Size()
-				x, y := e.Position()
-				if y == h-1 && messenger.message != "" && globalSettings["infobar"].(bool) {
-					// If the user clicked in the bottom bar, and there is a message down there
-					// we copy it to the clipboard.
-					// Often error messages are displayed down there so it can be useful to easily
-					// copy the message
-					clipboard.WriteAll(messenger.message, "primary")
-					continue
-				}
+		for event != nil {
+			switch e := event.(type) {
+			case *tcell.EventMouse:
+				if e.Buttons() == tcell.Button1 {
+					// If the user left clicked we check a couple things
+					_, h := screen.Size()
+					x, y := e.Position()
+					if y == h-1 && messenger.message != "" && globalSettings["infobar"].(bool) {
+						// If the user clicked in the bottom bar, and there is a message down there
+						// we copy it to the clipboard.
+						// Often error messages are displayed down there so it can be useful to easily
+						// copy the message
+						clipboard.WriteAll(messenger.message, "primary")
+						break
+					}
 
-				if CurView().mouseReleased {
-					// We loop through each view in the current tab and make sure the current view
-					// is the one being clicked in
-					for _, v := range tabs[curTab].views {
-						if x >= v.x && x < v.x+v.width && y >= v.y && y < v.y+v.height {
-							tabs[curTab].curView = v.Num
+					if CurView().mouseReleased {
+						// We loop through each view in the current tab and make sure the current view
+						// is the one being clicked in
+						for _, v := range tabs[curTab].views {
+							if x >= v.x && x < v.x+v.width && y >= v.y && y < v.y+v.height {
+								tabs[curTab].curView = v.Num
+							}
 						}
 					}
 				}
 			}
-		}
 
-		// This function checks the mouse event for the possibility of changing the current tab
-		// If the tab was changed it returns true
-		if TabbarHandleMouseEvent(event) {
-			continue
-		}
+			// This function checks the mouse event for the possibility of changing the current tab
+			// If the tab was changed it returns true
+			if TabbarHandleMouseEvent(event) {
+				break
+			}
+
+			if searching {
+				// Since searching is done in real time, we need to redraw every time
+				// there is a new event in the search bar so we need a special function
+				// to run instead of the standard HandleEvent.
+				HandleSearchEvent(event, CurView())
+			} else {
+				// Send it to the view
+				CurView().HandleEvent(event)
+			}
+
+			select {
+			case event = <-events:
+			default:
+				event = nil
+			}
 
-		if searching {
-			// Since searching is done in real time, we need to redraw every time
-			// there is a new event in the search bar so we need a special function
-			// to run instead of the standard HandleEvent.
-			HandleSearchEvent(event, CurView())
-		} else {
-			// Send it to the view
-			CurView().HandleEvent(event)
 		}
 	}
 }

cmd/micro/plugin.go

@@ -12,12 +12,6 @@ import (
 
 var loadedPlugins []string
 
-var preInstalledPlugins = []string{
-	"go",
-	"linter",
-	"autoclose",
-}
-
 // Call calls the lua function 'function'
 // If it does not exist nothing happens, if there is an error,
 // the error is returned
@@ -120,47 +114,28 @@ func LuaFunctionJob(function string) func(string, ...string) {
 
 // LoadPlugins loads the pre-installed plugins and the plugins located in ~/.config/micro/plugins
 func LoadPlugins() {
-	files, _ := ioutil.ReadDir(configDir + "/plugins")
-	for _, plugin := range files {
-		if plugin.IsDir() {
-			pluginName := plugin.Name()
-			files, _ := ioutil.ReadDir(configDir + "/plugins/" + pluginName)
-			for _, f := range files {
-				if f.Name() == pluginName+".lua" {
-					data, _ := ioutil.ReadFile(configDir + "/plugins/" + pluginName + "/" + f.Name())
-					pluginDef := "\nlocal P = {}\n" + pluginName + " = P\nsetmetatable(" + pluginName + ", {__index = _G})\nsetfenv(1, P)\n"
-
-					if err := L.DoString(pluginDef + string(data)); err != nil {
-						TermMessage(err)
-						continue
-					}
-					loadedPlugins = append(loadedPlugins, pluginName)
-				}
-			}
-		}
-	}
-
-	for _, pluginName := range preInstalledPlugins {
+	for _, plugin := range ListRuntimeFiles(RTPlugin) {
 		alreadyExists := false
+		pluginName := plugin.Name()
 		for _, pl := range loadedPlugins {
 			if pl == pluginName {
 				alreadyExists = true
 				break
 			}
 		}
+
 		if !alreadyExists {
-			plugin := "runtime/plugins/" + pluginName + "/" + pluginName + ".lua"
-			data, err := Asset(plugin)
+			data, err := plugin.Data()
 			if err != nil {
-				TermMessage("Error loading pre-installed plugin: " + pluginName)
+				TermMessage("Error loading plugin: " + pluginName)
 				continue
 			}
 			pluginDef := "\nlocal P = {}\n" + pluginName + " = P\nsetmetatable(" + pluginName + ", {__index = _G})\nsetfenv(1, P)\n"
+
 			if err := L.DoString(pluginDef + string(data)); err != nil {
 				TermMessage(err)
 				continue
 			}
-
 			loadedPlugins = append(loadedPlugins, pluginName)
 		}
 	}

cmd/micro/pluginmanager.go

@@ -0,0 +1,610 @@
+package main
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"sync"
+
+	"github.com/blang/semver"
+	"github.com/yuin/gopher-lua"
+	"github.com/zyedidia/json5/encoding/json5"
+)
+
+var (
+	allPluginPackages PluginPackages = nil
+)
+
+// CorePluginName is a plugin dependency name for the micro core.
+const CorePluginName = "micro"
+
+// PluginChannel contains an url to a json list of PluginRepository
+type PluginChannel string
+
+// PluginChannels is a slice of PluginChannel
+type PluginChannels []PluginChannel
+
+// PluginRepository contains an url to json file containing PluginPackages
+type PluginRepository string
+
+// PluginPackage contains the meta-data of a plugin and all available versions
+type PluginPackage struct {
+	Name        string
+	Description string
+	Author      string
+	Tags        []string
+	Versions    PluginVersions
+}
+
+// PluginPackages is a list of PluginPackage instances.
+type PluginPackages []*PluginPackage
+
+// PluginVersion descripes a version of a PluginPackage. Containing a version, download url and also dependencies.
+type PluginVersion struct {
+	pack    *PluginPackage
+	Version semver.Version
+	Url     string
+	Require PluginDependencies
+}
+
+// PluginVersions is a slice of PluginVersion
+type PluginVersions []*PluginVersion
+
+// PluginDenendency descripes a dependency to another plugin or micro itself.
+type PluginDependency struct {
+	Name  string
+	Range semver.Range
+}
+
+// PluginDependencies is a slice of PluginDependency
+type PluginDependencies []*PluginDependency
+
+func (pp *PluginPackage) String() string {
+	buf := new(bytes.Buffer)
+	buf.WriteString("Plugin: ")
+	buf.WriteString(pp.Name)
+	buf.WriteRune('\n')
+	if pp.Author != "" {
+		buf.WriteString("Author: ")
+		buf.WriteString(pp.Author)
+		buf.WriteRune('\n')
+	}
+	if pp.Description != "" {
+		buf.WriteRune('\n')
+		buf.WriteString(pp.Description)
+	}
+	return buf.String()
+}
+
+func fetchAllSources(count int, fetcher func(i int) PluginPackages) PluginPackages {
+	wgQuery := new(sync.WaitGroup)
+	wgQuery.Add(count)
+
+	results := make(chan PluginPackages)
+
+	wgDone := new(sync.WaitGroup)
+	wgDone.Add(1)
+	var packages PluginPackages
+	for i := 0; i < count; i++ {
+		go func(i int) {
+			results <- fetcher(i)
+			wgQuery.Done()
+		}(i)
+	}
+	go func() {
+		packages = make(PluginPackages, 0)
+		for res := range results {
+			packages = append(packages, res...)
+		}
+		wgDone.Done()
+	}()
+	wgQuery.Wait()
+	close(results)
+	wgDone.Wait()
+	return packages
+}
+
+// Fetch retrieves all available PluginPackages from the given channels
+func (pc PluginChannels) Fetch() PluginPackages {
+	return fetchAllSources(len(pc), func(i int) PluginPackages {
+		return pc[i].Fetch()
+	})
+}
+
+// Fetch retrieves all available PluginPackages from the given channel
+func (pc PluginChannel) Fetch() PluginPackages {
+	// messenger.AddLog(fmt.Sprintf("Fetching channel: %q", string(pc)))
+	resp, err := http.Get(string(pc))
+	if err != nil {
+		TermMessage("Failed to query plugin channel:\n", err)
+		return PluginPackages{}
+	}
+	defer resp.Body.Close()
+	decoder := json5.NewDecoder(resp.Body)
+
+	var repositories []PluginRepository
+	if err := decoder.Decode(&repositories); err != nil {
+		TermMessage("Failed to decode channel data:\n", err)
+		return PluginPackages{}
+	}
+	return fetchAllSources(len(repositories), func(i int) PluginPackages {
+		return repositories[i].Fetch()
+	})
+}
+
+// Fetch retrieves all available PluginPackages from the given repository
+func (pr PluginRepository) Fetch() PluginPackages {
+	// messenger.AddLog(fmt.Sprintf("Fetching repository: %q", string(pr)))
+	resp, err := http.Get(string(pr))
+	if err != nil {
+		TermMessage("Failed to query plugin repository:\n", err)
+		return PluginPackages{}
+	}
+	defer resp.Body.Close()
+	decoder := json5.NewDecoder(resp.Body)
+
+	var plugins PluginPackages
+	if err := decoder.Decode(&plugins); err != nil {
+		TermMessage("Failed to decode repository data:\n", err)
+		return PluginPackages{}
+	}
+	if len(plugins) > 0 {
+		return PluginPackages{plugins[0]}
+	}
+	return nil
+	// return plugins
+}
+
+// UnmarshalJSON unmarshals raw json to a PluginVersion
+func (pv *PluginVersion) UnmarshalJSON(data []byte) error {
+	var values struct {
+		Version semver.Version
+		Url     string
+		Require map[string]string
+	}
+
+	if err := json5.Unmarshal(data, &values); err != nil {
+		return err
+	}
+	pv.Version = values.Version
+	pv.Url = values.Url
+	pv.Require = make(PluginDependencies, 0)
+
+	for k, v := range values.Require {
+		// don't add the dependency if it's the core and
+		// we have a unknown version number.
+		// in that case just accept that dependency (which equals to not adding it.)
+		if k != CorePluginName || !isUnknownCoreVersion() {
+			if vRange, err := semver.ParseRange(v); err == nil {
+				pv.Require = append(pv.Require, &PluginDependency{k, vRange})
+			}
+		}
+	}
+	return nil
+}
+
+// UnmarshalJSON unmarshals raw json to a PluginPackage
+func (pp *PluginPackage) UnmarshalJSON(data []byte) error {
+	var values struct {
+		Name        string
+		Description string
+		Author      string
+		Tags        []string
+		Versions    PluginVersions
+	}
+	if err := json5.Unmarshal(data, &values); err != nil {
+		return err
+	}
+	pp.Name = values.Name
+	pp.Description = values.Description
+	pp.Author = values.Author
+	pp.Tags = values.Tags
+	pp.Versions = values.Versions
+	for _, v := range pp.Versions {
+		v.pack = pp
+	}
+	return nil
+}
+
+// GetAllPluginPackages gets all PluginPackages which may be available.
+func GetAllPluginPackages() PluginPackages {
+	if allPluginPackages == nil {
+		getOption := func(name string) []string {
+			data := GetOption(name)
+			if strs, ok := data.([]string); ok {
+				return strs
+			}
+			if ifs, ok := data.([]interface{}); ok {
+				result := make([]string, len(ifs))
+				for i, urlIf := range ifs {
+					if url, ok := urlIf.(string); ok {
+						result[i] = url
+					} else {
+						return nil
+					}
+				}
+				return result
+			}
+			return nil
+		}
+
+		channels := PluginChannels{}
+		for _, url := range getOption("pluginchannels") {
+			channels = append(channels, PluginChannel(url))
+		}
+		repos := []PluginRepository{}
+		for _, url := range getOption("pluginrepos") {
+			repos = append(repos, PluginRepository(url))
+		}
+		allPluginPackages = fetchAllSources(len(repos)+1, func(i int) PluginPackages {
+			if i == 0 {
+				return channels.Fetch()
+			} else {
+				return repos[i-1].Fetch()
+			}
+		})
+	}
+	return allPluginPackages
+}
+
+func (pv PluginVersions) find(ppName string) *PluginVersion {
+	for _, v := range pv {
+		if v.pack.Name == ppName {
+			return v
+		}
+	}
+	return nil
+}
+
+// Len returns the number of pluginversions in this slice
+func (pv PluginVersions) Len() int {
+	return len(pv)
+}
+
+// Swap two entries of the slice
+func (pv PluginVersions) Swap(i, j int) {
+	pv[i], pv[j] = pv[j], pv[i]
+}
+
+// Less returns true if the version at position i is greater then the version at position j (used for sorting)
+func (s PluginVersions) Less(i, j int) bool {
+	return s[i].Version.GT(s[j].Version)
+}
+
+// Match returns true if the package matches a given search text
+func (pp PluginPackage) Match(text string) bool {
+	text = strings.ToLower(text)
+	for _, t := range pp.Tags {
+		if strings.ToLower(t) == text {
+			return true
+		}
+	}
+	if strings.Contains(strings.ToLower(pp.Name), text) {
+		return true
+	}
+
+	if strings.Contains(strings.ToLower(pp.Description), text) {
+		return true
+	}
+
+	return false
+}
+
+// IsInstallable returns true if the package can be installed.
+func (pp PluginPackage) IsInstallable() error {
+	_, err := GetAllPluginPackages().Resolve(GetInstalledVersions(true), PluginDependencies{
+		&PluginDependency{
+			Name:  pp.Name,
+			Range: semver.Range(func(v semver.Version) bool { return true }),
+		}})
+	return err
+}
+
+// SearchPlugin retrieves a list of all PluginPackages which match the given search text and
+// could be or are already installed
+func SearchPlugin(texts []string) (plugins PluginPackages) {
+	plugins = make(PluginPackages, 0)
+
+pluginLoop:
+	for _, pp := range GetAllPluginPackages() {
+		for _, text := range texts {
+			if !pp.Match(text) {
+				continue pluginLoop
+			}
+		}
+
+		if err := pp.IsInstallable(); err == nil {
+			plugins = append(plugins, pp)
+		}
+	}
+	return
+}
+
+func isUnknownCoreVersion() bool {
+	_, err := semver.ParseTolerant(Version)
+	return err != nil
+}
+
+func newStaticPluginVersion(name, version string) *PluginVersion {
+	vers, err := semver.ParseTolerant(version)
+
+	if err != nil {
+		if vers, err = semver.ParseTolerant("0.0.0-" + version); err != nil {
+			vers = semver.MustParse("0.0.0-unknown")
+		}
+	}
+	pl := &PluginPackage{
+		Name: name,
+	}
+	pv := &PluginVersion{
+		pack:    pl,
+		Version: vers,
+	}
+	pl.Versions = PluginVersions{pv}
+	return pv
+}
+
+// GetInstalledVersions returns a list of all currently installed plugins including an entry for
+// micro itself. This can be used to resolve dependencies.
+func GetInstalledVersions(withCore bool) PluginVersions {
+	result := PluginVersions{}
+	if withCore {
+		result = append(result, newStaticPluginVersion(CorePluginName, Version))
+	}
+
+	for _, name := range loadedPlugins {
+		version := GetInstalledPluginVersion(name)
+		if pv := newStaticPluginVersion(name, version); pv != nil {
+			result = append(result, pv)
+		}
+	}
+
+	return result
+}
+
+// GetInstalledPluginVersion returns the string of the exported VERSION variable of a loaded plugin
+func GetInstalledPluginVersion(name string) string {
+	plugin := L.GetGlobal(name)
+	if plugin != lua.LNil {
+		version := L.GetField(plugin, "VERSION")
+		if str, ok := version.(lua.LString); ok {
+			return string(str)
+
+		}
+	}
+	return ""
+}
+
+func (pv *PluginVersion) DownloadAndInstall() error {
+	messenger.AddLog(fmt.Sprintf("Downloading %q (%s) from %q", pv.pack.Name, pv.Version, pv.Url))
+	resp, err := http.Get(pv.Url)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	zipbuf := bytes.NewReader(data)
+	z, err := zip.NewReader(zipbuf, zipbuf.Size())
+	if err != nil {
+		return err
+	}
+	targetDir := filepath.Join(configDir, "plugins", pv.pack.Name)
+	dirPerm := os.FileMode(0755)
+	if err = os.MkdirAll(targetDir, dirPerm); err != nil {
+		return err
+	}
+
+	// Check if all files in zip are in the same directory.
+	// this might be the case if the plugin zip contains the whole plugin dir
+	// instead of its content.
+	var prefix string
+	allPrefixed := false
+	for i, f := range z.File {
+		parts := strings.Split(f.Name, "/")
+		if i == 0 {
+			prefix = parts[0]
+		} else if parts[0] != prefix {
+			allPrefixed = false
+			break
+		} else {
+			// switch to true since we have at least a second file
+			allPrefixed = true
+		}
+	}
+
+	for _, f := range z.File {
+		parts := strings.Split(f.Name, "/")
+		if allPrefixed {
+			parts = parts[1:]
+		}
+
+		targetName := filepath.Join(targetDir, filepath.Join(parts...))
+		if f.FileInfo().IsDir() {
+			if err := os.MkdirAll(targetName, dirPerm); err != nil {
+				return err
+			}
+		} else {
+			content, err := f.Open()
+			if err != nil {
+				return err
+			}
+			defer content.Close()
+			if target, err := os.Create(targetName); err != nil {
+				return err
+			} else {
+				defer target.Close()
+				if _, err = io.Copy(target, content); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+func (pl PluginPackages) Get(name string) *PluginPackage {
+	for _, p := range pl {
+		if p.Name == name {
+			return p
+		}
+	}
+	return nil
+}
+
+func (pl PluginPackages) GetAllVersions(name string) PluginVersions {
+	result := make(PluginVersions, 0)
+	p := pl.Get(name)
+	if p != nil {
+		for _, v := range p.Versions {
+			result = append(result, v)
+		}
+	}
+	return result
+}
+
+func (req PluginDependencies) Join(other PluginDependencies) PluginDependencies {
+	m := make(map[string]*PluginDependency)
+	for _, r := range req {
+		m[r.Name] = r
+	}
+	for _, o := range other {
+		cur, ok := m[o.Name]
+		if ok {
+			m[o.Name] = &PluginDependency{
+				o.Name,
+				o.Range.AND(cur.Range),
+			}
+		} else {
+			m[o.Name] = o
+		}
+	}
+	result := make(PluginDependencies, 0, len(m))
+	for _, v := range m {
+		result = append(result, v)
+	}
+	return result
+}
+
+func (all PluginPackages) Resolve(selectedVersions PluginVersions, open PluginDependencies) (PluginVersions, error) {
+	if len(open) == 0 {
+		return selectedVersions, nil
+	}
+	currentRequirement, stillOpen := open[0], open[1:]
+	if currentRequirement != nil {
+		if selVersion := selectedVersions.find(currentRequirement.Name); selVersion != nil {
+			if currentRequirement.Range(selVersion.Version) {
+				return all.Resolve(selectedVersions, stillOpen)
+			}
+			return nil, fmt.Errorf("unable to find a matching version for \"%s\"", currentRequirement.Name)
+		} else {
+			availableVersions := all.GetAllVersions(currentRequirement.Name)
+			sort.Sort(availableVersions)
+
+			for _, version := range availableVersions {
+				if currentRequirement.Range(version.Version) {
+					resolved, err := all.Resolve(append(selectedVersions, version), stillOpen.Join(version.Require))
+
+					if err == nil {
+						return resolved, nil
+					}
+				}
+			}
+			return nil, fmt.Errorf("unable to find a matching version for \"%s\"", currentRequirement.Name)
+		}
+	} else {
+		return selectedVersions, nil
+	}
+}
+
+func (versions PluginVersions) install() {
+	anyInstalled := false
+	currentlyInstalled := GetInstalledVersions(true)
+
+	for _, sel := range versions {
+		if sel.pack.Name != CorePluginName {
+			shouldInstall := true
+			if pv := currentlyInstalled.find(sel.pack.Name); pv != nil {
+				if pv.Version.NE(sel.Version) {
+					messenger.AddLog(fmt.Sprint("Uninstalling %q", sel.pack.Name))
+					UninstallPlugin(sel.pack.Name)
+				} else {
+					shouldInstall = false
+				}
+			}
+
+			if shouldInstall {
+				if err := sel.DownloadAndInstall(); err != nil {
+					messenger.Error(err)
+					return
+				}
+				anyInstalled = true
+			}
+		}
+	}
+	if anyInstalled {
+		messenger.Message("One or more plugins installed. Please restart micro.")
+	} else {
+		messenger.AddLog("Nothing to install / update")
+	}
+}
+
+// UninstallPlugin deletes the plugin folder of the given plugin
+func UninstallPlugin(name string) {
+	if err := os.RemoveAll(filepath.Join(configDir, "plugins", name)); err != nil {
+		messenger.Error(err)
+	}
+}
+
+func (pl PluginPackage) Install() {
+	selected, err := GetAllPluginPackages().Resolve(GetInstalledVersions(true), PluginDependencies{
+		&PluginDependency{
+			Name:  pl.Name,
+			Range: semver.Range(func(v semver.Version) bool { return true }),
+		}})
+	if err != nil {
+		TermMessage(err)
+		return
+	}
+	selected.install()
+}
+
+func UpdatePlugins(plugins []string) {
+	// if no plugins are specified, update all installed plugins.
+	if len(plugins) == 0 {
+		plugins = loadedPlugins
+	}
+
+	messenger.AddLog("Checking for plugin updates")
+	microVersion := PluginVersions{
+		newStaticPluginVersion(CorePluginName, Version),
+	}
+
+	var updates = make(PluginDependencies, 0)
+	for _, name := range plugins {
+		pv := GetInstalledPluginVersion(name)
+		r, err := semver.ParseRange(">=" + pv) // Try to get newer versions.
+		if err == nil {
+			updates = append(updates, &PluginDependency{
+				Name:  name,
+				Range: r,
+			})
+		}
+	}
+
+	selected, err := GetAllPluginPackages().Resolve(microVersion, updates)
+	if err != nil {
+		TermMessage(err)
+		return
+	}
+	selected.install()
+}

cmd/micro/pluginmanager_test.go

@@ -0,0 +1,55 @@
+package main
+
+import (
+	"github.com/blang/semver"
+	"testing"
+
+	"github.com/zyedidia/json5/encoding/json5"
+)
+
+func TestDependencyResolving(t *testing.T) {
+	js := `
+[{
+  "Name": "Foo",
+  "Versions": [{ "Version": "1.0.0" }, { "Version": "1.5.0" },{ "Version": "2.0.0" }]
+}, {
+  "Name": "Bar",
+  "Versions": [{ "Version": "1.0.0", "Require": {"Foo": ">1.0.0 <2.0.0"} }]
+}, {
+  "Name": "Unresolvable",
+  "Versions": [{ "Version": "1.0.0", "Require": {"Foo": "<=1.0.0", "Bar": ">0.0.0"} }]
+	}]
+`
+	var all PluginPackages
+	err := json5.Unmarshal([]byte(js), &all)
+	if err != nil {
+		t.Error(err)
+	}
+	selected, err := all.Resolve(PluginVersions{}, PluginDependencies{
+		&PluginDependency{"Bar", semver.MustParseRange(">=1.0.0")},
+	})
+
+	check := func(name, version string) {
+		v := selected.find(name)
+		expected := semver.MustParse(version)
+		if v == nil {
+			t.Errorf("Failed to resolve %s", name)
+		} else if expected.NE(v.Version) {
+			t.Errorf("%s resolved in wrong version got %s", name, v)
+		}
+	}
+
+	if err != nil {
+		t.Error(err)
+	} else {
+		check("Foo", "1.5.0")
+		check("Bar", "1.0.0")
+	}
+
+	selected, err = all.Resolve(PluginVersions{}, PluginDependencies{
+		&PluginDependency{"Unresolvable", semver.MustParseRange(">0.0.0")},
+	})
+	if err == nil {
+		t.Error("Unresolvable package resolved:", selected)
+	}
+}

cmd/micro/rtfiles.go

@@ -0,0 +1,187 @@
+package main
+
+import (
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+)
+
+const (
+	RTColorscheme = "colorscheme"
+	RTSyntax      = "syntax"
+	RTHelp        = "help"
+	RTPlugin      = "plugin"
+)
+
+// RuntimeFile allows the program to read runtime data like colorschemes or syntax files
+type RuntimeFile interface {
+	// Name returns a name of the file without paths or extensions
+	Name() string
+	// Data returns the content of the file.
+	Data() ([]byte, error)
+}
+
+// allFiles contains all available files, mapped by filetype
+var allFiles map[string][]RuntimeFile
+
+// some file on filesystem
+type realFile string
+
+// some asset file
+type assetFile string
+
+// some file on filesystem but with a different name
+type namedFile struct {
+	realFile
+	name string
+}
+
+func (rf realFile) Name() string {
+	fn := filepath.Base(string(rf))
+	return fn[:len(fn)-len(filepath.Ext(fn))]
+}
+
+func (rf realFile) Data() ([]byte, error) {
+	return ioutil.ReadFile(string(rf))
+}
+
+func (af assetFile) Name() string {
+	fn := path.Base(string(af))
+	return fn[:len(fn)-len(path.Ext(fn))]
+}
+
+func (af assetFile) Data() ([]byte, error) {
+	return Asset(string(af))
+}
+
+func (nf namedFile) Name() string {
+	return nf.name
+}
+
+// AddRuntimeFile registers a file for the given filetype
+func AddRuntimeFile(fileType string, file RuntimeFile) {
+	if allFiles == nil {
+		allFiles = make(map[string][]RuntimeFile)
+	}
+	allFiles[fileType] = append(allFiles[fileType], file)
+}
+
+// AddRuntimeFilesFromDirectory registers each file from the given directory for
+// the filetype which matches the file-pattern
+func AddRuntimeFilesFromDirectory(fileType, directory, pattern string) {
+	files, _ := ioutil.ReadDir(directory)
+	for _, f := range files {
+		if ok, _ := filepath.Match(pattern, f.Name()); !f.IsDir() && ok {
+			fullPath := filepath.Join(directory, f.Name())
+			AddRuntimeFile(fileType, realFile(fullPath))
+		}
+	}
+}
+
+// AddRuntimeFilesFromAssets registers each file from the given asset-directory for
+// the filetype which matches the file-pattern
+func AddRuntimeFilesFromAssets(fileType, directory, pattern string) {
+	files, err := AssetDir(directory)
+	if err != nil {
+		return
+	}
+	for _, f := range files {
+		if ok, _ := path.Match(pattern, f); ok {
+			AddRuntimeFile(fileType, assetFile(path.Join(directory, f)))
+		}
+	}
+}
+
+// FindRuntimeFile finds a runtime file of the given filetype and name
+// will return nil if no file was found
+func FindRuntimeFile(fileType, name string) RuntimeFile {
+	for _, f := range ListRuntimeFiles(fileType) {
+		if f.Name() == name {
+			return f
+		}
+	}
+	return nil
+}
+
+// ListRuntimeFiles lists all known runtime files for the given filetype
+func ListRuntimeFiles(fileType string) []RuntimeFile {
+	if files, ok := allFiles[fileType]; ok {
+		return files
+	}
+	return []RuntimeFile{}
+}
+
+// InitRuntimeFiles initializes all assets file and the config directory
+func InitRuntimeFiles() {
+	add := func(fileType, dir, pattern string) {
+		AddRuntimeFilesFromDirectory(fileType, filepath.Join(configDir, dir), pattern)
+		AddRuntimeFilesFromAssets(fileType, path.Join("runtime", dir), pattern)
+	}
+
+	add(RTColorscheme, "colorschemes", "*.micro")
+	add(RTSyntax, "syntax", "*.micro")
+	add(RTHelp, "help", "*.md")
+
+	// Search configDir for plugin-scripts
+	files, _ := ioutil.ReadDir(filepath.Join(configDir, "plugins"))
+	for _, f := range files {
+		if f.IsDir() {
+			scriptPath := filepath.Join(configDir, "plugins", f.Name(), f.Name()+".lua")
+			if _, err := os.Stat(scriptPath); err == nil {
+				AddRuntimeFile(RTPlugin, realFile(scriptPath))
+			}
+		}
+	}
+
+	if files, err := AssetDir("runtime/plugins"); err == nil {
+		for _, f := range files {
+			scriptPath := path.Join("runtime/plugins", f, f+".lua")
+			if _, err := AssetInfo(scriptPath); err == nil {
+				AddRuntimeFile(RTPlugin, assetFile(scriptPath))
+			}
+		}
+	}
+}
+
+// PluginReadRuntimeFile allows plugin scripts to read the content of a runtime file
+func PluginReadRuntimeFile(fileType, name string) string {
+	if file := FindRuntimeFile(fileType, name); file != nil {
+		if data, err := file.Data(); err == nil {
+			return string(data)
+		}
+	}
+	return ""
+}
+
+// PluginListRuntimeFiles allows plugins to lists all runtime files of the given type
+func PluginListRuntimeFiles(fileType string) []string {
+	files := ListRuntimeFiles(fileType)
+	result := make([]string, len(files))
+	for i, f := range files {
+		result[i] = f.Name()
+	}
+	return result
+}
+
+// PluginAddRuntimeFile adds a file to the runtime files for a plugin
+func PluginAddRuntimeFile(plugin, filetype, filePath string) {
+	fullpath := filepath.Join(configDir, "plugins", plugin, filePath)
+	if _, err := os.Stat(fullpath); err == nil {
+		AddRuntimeFile(filetype, realFile(fullpath))
+	} else {
+		fullpath = path.Join("runtime", "plugins", plugin, filePath)
+		AddRuntimeFile(filetype, assetFile(fullpath))
+	}
+}
+
+// PluginAddRuntimeFilesFromDirectory adds files from a directory to the runtime files for a plugin
+func PluginAddRuntimeFilesFromDirectory(plugin, filetype, directory, pattern string) {
+	fullpath := filepath.Join(configDir, "plugins", plugin, directory)
+	if _, err := os.Stat(fullpath); err == nil {
+		AddRuntimeFilesFromDirectory(filetype, fullpath, pattern)
+	} else {
+		fullpath = path.Join("runtime", "plugins", plugin, directory)
+		AddRuntimeFilesFromAssets(filetype, fullpath, pattern)
+	}
+}

cmd/micro/settings.go

@@ -8,13 +8,24 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/yosuke-furukawa/json5/encoding/json5"
 	"github.com/zyedidia/glob"
+	"github.com/zyedidia/json5/encoding/json5"
 )
 
+type optionValidator func(string, interface{}) error
+
 // The options that the user can set
 var globalSettings map[string]interface{}
 
+// Options with validators
+var optionValidators = map[string]optionValidator{
+	"tabsize":      validatePositiveValue,
+	"scrollmargin": validateNonNegativeValue,
+	"scrollspeed":  validateNonNegativeValue,
+	"colorscheme":  validateColorscheme,
+	"colorcolumn":  validateNonNegativeValue,
+}
+
 // InitGlobalSettings initializes the options map and sets all options to their default values
 func InitGlobalSettings() {
 	defaults := DefaultGlobalSettings()
@@ -165,6 +176,8 @@ func GetOption(name string) interface{} {
 func DefaultGlobalSettings() map[string]interface{} {
 	return map[string]interface{}{
 		"autoindent":   true,
+		"autosave":     false,
+		"colorcolumn":  float64(0),
 		"colorscheme":  "zenburn",
 		"cursorline":   true,
 		"ignorecase":   false,
@@ -179,6 +192,10 @@ func DefaultGlobalSettings() map[string]interface{} {
 		"syntax":       true,
 		"tabsize":      float64(4),
 		"tabstospaces": false,
+		"pluginchannels": []string{
+			"https://raw.githubusercontent.com/micro-editor/plugin-channel/master/channel.json",
+		},
+		"pluginrepos": []string{},
 	}
 }
 
@@ -187,6 +204,8 @@ func DefaultGlobalSettings() map[string]interface{} {
 func DefaultLocalSettings() map[string]interface{} {
 	return map[string]interface{}{
 		"autoindent":   true,
+		"autosave":     false,
+		"colorcolumn":  float64(0),
 		"cursorline":   true,
 		"filetype":     "Unknown",
 		"ignorecase":   false,
@@ -208,12 +227,6 @@ func DefaultLocalSettings() map[string]interface{} {
 // is local only it will set the local version
 // Use setlocal to force an option to be set locally
 func SetOption(option, value string) error {
-	if option == "colorscheme" {
-		if !ColorschemeExists(value) {
-			return errors.New(value + " is not a valid colorscheme")
-		}
-	}
-
 	if _, ok := globalSettings[option]; !ok {
 		if _, ok := CurView().Buf.Settings[option]; !ok {
 			return errors.New("Invalid option")
@@ -222,23 +235,33 @@ func SetOption(option, value string) error {
 		return nil
 	}
 
+	var nativeValue interface{}
+
 	kind := reflect.TypeOf(globalSettings[option]).Kind()
 	if kind == reflect.Bool {
 		b, err := ParseBool(value)
 		if err != nil {
 			return errors.New("Invalid value")
 		}
-		globalSettings[option] = b
+		nativeValue = b
 	} else if kind == reflect.String {
-		globalSettings[option] = value
+		nativeValue = value
 	} else if kind == reflect.Float64 {
 		i, err := strconv.Atoi(value)
 		if err != nil {
 			return errors.New("Invalid value")
 		}
-		globalSettings[option] = float64(i)
+		nativeValue = float64(i)
+	} else {
+		return errors.New("Option has unsupported value type")
 	}
 
+	if err := optionIsValid(option, nativeValue); err != nil {
+		return err
+	}
+
+	globalSettings[option] = nativeValue
+
 	if option == "colorscheme" {
 		LoadSyntaxFiles()
 		for _, tab := range tabs {
@@ -275,23 +298,33 @@ func SetLocalOption(option, value string, view *View) error {
 		return errors.New("Invalid option")
 	}
 
+	var nativeValue interface{}
+
 	kind := reflect.TypeOf(buf.Settings[option]).Kind()
 	if kind == reflect.Bool {
 		b, err := ParseBool(value)
 		if err != nil {
 			return errors.New("Invalid value")
 		}
-		buf.Settings[option] = b
+		nativeValue = b
 	} else if kind == reflect.String {
-		buf.Settings[option] = value
+		nativeValue = value
 	} else if kind == reflect.Float64 {
 		i, err := strconv.Atoi(value)
 		if err != nil {
 			return errors.New("Invalid value")
 		}
-		buf.Settings[option] = float64(i)
+		nativeValue = float64(i)
+	} else {
+		return errors.New("Option has unsupported value type")
 	}
 
+	if err := optionIsValid(option, nativeValue); err != nil {
+		return err
+	}
+
+	buf.Settings[option] = nativeValue
+
 	if option == "statusline" {
 		view.ToggleStatusLine()
 		if buf.Settings["syntax"].(bool) {
@@ -327,3 +360,55 @@ func SetOptionAndSettings(option, value string) {
 		return
 	}
 }
+
+func optionIsValid(option string, value interface{}) error {
+	if validator, ok := optionValidators[option]; ok {
+		return validator(option, value)
+	}
+
+	return nil
+}
+
+// Option validators
+
+func validatePositiveValue(option string, value interface{}) error {
+	tabsize, ok := value.(float64)
+
+	if !ok {
+		return errors.New("Expected numeric type for " + option)
+	}
+
+	if tabsize < 1 {
+		return errors.New(option + " must be greater than 0")
+	}
+
+	return nil
+}
+
+func validateNonNegativeValue(option string, value interface{}) error {
+	nativeValue, ok := value.(float64)
+
+	if !ok {
+		return errors.New("Expected numeric type for " + option)
+	}
+
+	if nativeValue < 0 {
+		return errors.New(option + " must be non-negative")
+	}
+
+	return nil
+}
+
+func validateColorscheme(option string, value interface{}) error {
+	colorscheme, ok := value.(string)
+
+	if !ok {
+		return errors.New("Expected string type for colorscheme")
+	}
+
+	if !ColorschemeExists(colorscheme) {
+		return errors.New(colorscheme + " is not a valid colorscheme")
+	}
+
+	return nil
+}

cmd/micro/split_tree.go

@@ -56,6 +56,7 @@ func (l *LeafNode) VSplit(buf *Buffer) {
 		s := new(SplitTree)
 		s.kind = VerticalSplit
 		s.parent = l.parent
+		s.tabNum = l.parent.tabNum
 		newView := NewView(buf)
 		newView.TabNum = l.parent.tabNum
 		newView.Num = len(tab.views)
@@ -81,6 +82,7 @@ func (l *LeafNode) HSplit(buf *Buffer) {
 	} else {
 		s := new(SplitTree)
 		s.kind = HorizontalSplit
+		s.tabNum = l.parent.tabNum
 		s.parent = l.parent
 		newView := NewView(buf)
 		newView.TabNum = l.parent.tabNum

cmd/micro/statusline.go

@@ -37,7 +37,7 @@ func (sline *Statusline) Display() {
 	file += " " + sline.view.Buf.FileType()
 
 	rightText := helpBinding + " for help "
-	if sline.view.Help {
+	if sline.view.Type == vtHelp {
 		rightText = helpBinding + " to close help "
 	}
 

cmd/micro/tab.go

@@ -37,11 +37,14 @@ func NewTabFromView(v *View) *Tab {
 		t.tree.height--
 	}
 
+	t.Resize()
+
 	return t
 }
 
 // SetNum sets all this tab's views to have the correct tab number
 func (t *Tab) SetNum(num int) {
+	t.tree.tabNum = num
 	for _, v := range t.views {
 		v.TabNum = num
 	}

cmd/micro/util.go

@@ -65,7 +65,7 @@ func Max(a, b int) int {
 func IsWordChar(str string) bool {
 	if len(str) > 1 {
 		// Unicode
-		return false
+		return true
 	}
 	c := str[0]
 	return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c == '_')
@@ -157,7 +157,19 @@ func GetModTime(path string) (time.Time, bool) {
 // StringWidth returns the width of a string where tabs count as `tabsize` width
 func StringWidth(str string, tabsize int) int {
 	sw := runewidth.StringWidth(str)
-	sw += NumOccurrences(str, '\t') * (tabsize - 1)
+	lineIdx := 0
+	for _, ch := range str {
+		switch ch {
+		case '\t':
+			ts := tabsize - (lineIdx % tabsize)
+			sw += ts - 1
+			lineIdx += ts
+		case '\n':
+			lineIdx = 0
+		default:
+			lineIdx++
+		}
+	}
 	return sw
 }
 
@@ -165,16 +177,22 @@ func StringWidth(str string, tabsize int) int {
 // that have a width larger than 1 (this also counts tabs as `tabsize` width)
 func WidthOfLargeRunes(str string, tabsize int) int {
 	count := 0
+	lineIdx := 0
 	for _, ch := range str {
 		var w int
 		if ch == '\t' {
-			w = tabsize
+			w = tabsize - (lineIdx % tabsize)
 		} else {
 			w = runewidth.RuneWidth(ch)
 		}
 		if w > 1 {
 			count += (w - 1)
 		}
+		if ch == '\n' {
+			lineIdx = 0
+		} else {
+			lineIdx += w
+		}
 	}
 	return count
 }
@@ -230,42 +248,64 @@ func FuncName(i interface{}) string {
 // The returned slice contains at least one string
 func SplitCommandArgs(input string) []string {
 	var result []string
+	var curQuote *bytes.Buffer = nil
+
 	curArg := new(bytes.Buffer)
-	inQuote := false
 	escape := false
 
-	appendResult := func() {
-		str := curArg.String()
-		inQuote = false
-		escape = false
-		if strings.HasPrefix(str, `"`) && strings.HasSuffix(str, `"`) {
-			if unquoted, err := strconv.Unquote(str); err == nil {
-				str = unquoted
-			}
+	finishQuote := func() {
+		if curQuote == nil {
+			return
 		}
+		str := curQuote.String()
+		if unquoted, err := strconv.Unquote(str); err == nil {
+			str = unquoted
+		}
+		curArg.WriteString(str)
+		curQuote = nil
+	}
+
+	appendResult := func() {
+		finishQuote()
+		escape = false
+
+		str := curArg.String()
 		result = append(result, str)
 		curArg.Reset()
 	}
 
 	for _, r := range input {
-		if r == ' ' && !inQuote {
+		if r == ' ' && curQuote == nil {
 			appendResult()
 		} else {
-			curArg.WriteRune(r)
+			runeHandled := false
+			appendRuneToBuff := func() {
+				if curQuote != nil {
+					curQuote.WriteRune(r)
+				} else {
+					curArg.WriteRune(r)
+				}
+				runeHandled = true
+			}
 
-			if r == '"' && !inQuote {
-				inQuote = true
+			if r == '"' && curQuote == nil {
+				curQuote = new(bytes.Buffer)
+				appendRuneToBuff()
 			} else {
-				if inQuote && !escape {
+				if curQuote != nil && !escape {
 					if r == '"' {
-						inQuote = false
-					}
-					if r == '\\' {
+						appendRuneToBuff()
+						finishQuote()
+					} else if r == '\\' {
+						appendRuneToBuff()
 						escape = true
 						continue
 					}
 				}
 			}
+			if !runeHandled {
+				appendRuneToBuff()
+			}
 		}
 
 		escape = false

cmd/micro/util_test.go

@@ -50,15 +50,15 @@ func TestIsWordChar(t *testing.T) {
 	if IsWordChar("_") == false {
 		t.Errorf("IsWordChar(_) = false")
 	}
+	if IsWordChar("ß") == false {
+		t.Errorf("IsWordChar(ß) = false")
+	}
 	if IsWordChar("~") == true {
 		t.Errorf("IsWordChar(~) = true")
 	}
 	if IsWordChar(" ") == true {
 		t.Errorf("IsWordChar( ) = true")
 	}
-	if IsWordChar("ß") == true {
-		t.Errorf("IsWordChar(ß) = true")
-	}
 	if IsWordChar(")") == true {
 		t.Errorf("IsWordChar()) = true")
 	}
@@ -100,9 +100,14 @@ func TestJoinAndSplitCommandArgs(t *testing.T) {
 		Query  string
 		Wanted []string
 	}{
-		{`"hallo""Welt"`, []string{`"hallo""Welt"`}},
+		{`"hallo""Welt"`, []string{`halloWelt`}},
+		{`"hallo" "Welt"`, []string{`hallo`, `Welt`}},
 		{`\"`, []string{`\"`}},
+		{`"foo`, []string{`"foo`}},
+		{`"foo"`, []string{`foo`}},
 		{`"\"`, []string{`"\"`}},
+		{`"C:\\"foo.txt`, []string{`C:\foo.txt`}},
+		{`"\n"new"\n"line`, []string{"\nnew\nline"}},
 	}
 
 	for i, test := range splitTests {
@@ -111,3 +116,41 @@ func TestJoinAndSplitCommandArgs(t *testing.T) {
 		}
 	}
 }
+
+func TestStringWidth(t *testing.T) {
+	tabsize := 4
+	if w := StringWidth("1\t2", tabsize); w != 5 {
+		t.Error("StringWidth 1 Failed. Got", w)
+	}
+	if w := StringWidth("\t", tabsize); w != 4 {
+		t.Error("StringWidth 2 Failed. Got", w)
+	}
+	if w := StringWidth("1\t", tabsize); w != 4 {
+		t.Error("StringWidth 3 Failed. Got", w)
+	}
+	if w := StringWidth("\t\t", tabsize); w != 8 {
+		t.Error("StringWidth 4 Failed. Got", w)
+	}
+	if w := StringWidth("12\t2\t", tabsize); w != 8 {
+		t.Error("StringWidth 5 Failed. Got", w)
+	}
+}
+
+func TestWidthOfLargeRunes(t *testing.T) {
+	tabsize := 4
+	if w := WidthOfLargeRunes("1\t2", tabsize); w != 2 {
+		t.Error("WidthOfLargeRunes 1 Failed. Got", w)
+	}
+	if w := WidthOfLargeRunes("\t", tabsize); w != 3 {
+		t.Error("WidthOfLargeRunes 2 Failed. Got", w)
+	}
+	if w := WidthOfLargeRunes("1\t", tabsize); w != 2 {
+		t.Error("WidthOfLargeRunes 3 Failed. Got", w)
+	}
+	if w := WidthOfLargeRunes("\t\t", tabsize); w != 6 {
+		t.Error("WidthOfLargeRunes 4 Failed. Got", w)
+	}
+	if w := WidthOfLargeRunes("12\t2\t", tabsize); w != 3 {
+		t.Error("WidthOfLargeRunes 5 Failed. Got", w)
+	}
+}

cmd/micro/view.go

@@ -11,6 +11,14 @@ import (
 	"github.com/zyedidia/tcell"
 )
 
+type ViewType int
+
+const (
+	vtDefault ViewType = iota
+	vtHelp
+	vtLog
+)
+
 // The View struct stores information about a view into a buffer.
 // It stores information about the cursor, and the viewport
 // that the user sees the buffer from.
@@ -28,9 +36,9 @@ type View struct {
 	heightPercent int
 
 	// Specifies whether or not this view holds a help buffer
-	Help bool
+	Type ViewType
 
-	// Actual with and height
+	// Actual width and height
 	width  int
 	height int
 
@@ -185,8 +193,14 @@ func (v *View) ScrollDown(n int) {
 // If there are unsaved changes, the user will be asked if the view can be closed
 // causing them to lose the unsaved changes
 func (v *View) CanClose() bool {
-	if v.Buf.IsModified {
-		char, canceled := messenger.LetterPrompt("Save changes to "+v.Buf.Name+" before closing? (y,n,esc) ", 'y', 'n')
+	if v.Type == vtDefault && v.Buf.IsModified {
+		var char rune
+		var canceled bool
+		if v.Buf.Settings["autosave"].(bool) {
+			char = 'y'
+		} else {
+			char, canceled = messenger.LetterPrompt("Save changes to "+v.Buf.Name+" before closing? (y,n,esc) ", 'y', 'n')
+		}
 		if !canceled {
 			if char == 'y' {
 				v.Save(true)
@@ -342,7 +356,34 @@ func (v *View) HandleEvent(event tcell.Event) {
 		// Window resized
 		tabs[v.TabNum].Resize()
 	case *tcell.EventKey:
-		if e.Key() == tcell.KeyRune && (e.Modifiers() == 0 || e.Modifiers() == tcell.ModShift) {
+		// Check first if input is a key binding, if it is we 'eat' the input and don't insert a rune
+		isBinding := false
+		if e.Key() != tcell.KeyRune || e.Modifiers() != 0 {
+			for key, actions := range bindings {
+				if e.Key() == key.keyCode {
+					if e.Key() == tcell.KeyRune {
+						if e.Rune() != key.r {
+							continue
+						}
+					}
+					if e.Modifiers() == key.modifiers {
+						relocate = false
+						isBinding = true
+						for _, action := range actions {
+							relocate = action(v, true) || relocate
+							funcName := FuncName(action)
+							if funcName != "main.(*View).ToggleMacro" && funcName != "main.(*View).PlayMacro" {
+								if recordingMacro {
+									curMacro = append(curMacro, action)
+								}
+							}
+						}
+						break
+					}
+				}
+			}
+		}
+		if !isBinding && e.Key() == tcell.KeyRune {
 			// Insert a character
 			if v.Cursor.HasSelection() {
 				v.Cursor.DeleteSelection()
@@ -361,28 +402,6 @@ func (v *View) HandleEvent(event tcell.Event) {
 			if recordingMacro {
 				curMacro = append(curMacro, e.Rune())
 			}
-		} else {
-			for key, actions := range bindings {
-				if e.Key() == key.keyCode {
-					if e.Key() == tcell.KeyRune {
-						if e.Rune() != key.r {
-							continue
-						}
-					}
-					if e.Modifiers() == key.modifiers {
-						relocate = false
-						for _, action := range actions {
-							relocate = action(v, true) || relocate
-							funcName := FuncName(action)
-							if funcName != "main.(*View).ToggleMacro" && funcName != "main.(*View).PlayMacro" {
-								if recordingMacro {
-									curMacro = append(curMacro, action)
-								}
-							}
-						}
-					}
-				}
-			}
 		}
 	case *tcell.EventPaste:
 		if !PreActionCall("Paste", v) {
@@ -490,9 +509,6 @@ func (v *View) HandleEvent(event tcell.Event) {
 	if relocate {
 		v.Relocate()
 	}
-	if v.Buf.Settings["syntax"].(bool) {
-		v.matches = Match(v)
-	}
 }
 
 // GutterMessage creates a message in this view's gutter
@@ -528,15 +544,18 @@ func (v *View) ClearAllGutterMessages() {
 
 // Opens the given help page in a new horizontal split
 func (v *View) openHelp(helpPage string) {
-	if v.Help {
-		helpBuffer := NewBuffer([]byte(helpPages[helpPage]), helpPage+".md")
-		helpBuffer.Name = "Help"
-		v.OpenBuffer(helpBuffer)
+	if data, err := FindRuntimeFile(RTHelp, helpPage).Data(); err != nil {
+		TermMessage("Unable to load help text", helpPage, "\n", err)
 	} else {
-		helpBuffer := NewBuffer([]byte(helpPages[helpPage]), helpPage+".md")
+		helpBuffer := NewBuffer(data, helpPage+".md")
 		helpBuffer.Name = "Help"
-		v.HSplit(helpBuffer)
-		CurView().Help = true
+
+		if v.Type == vtHelp {
+			v.OpenBuffer(helpBuffer)
+		} else {
+			v.HSplit(helpBuffer)
+			CurView().Type = vtHelp
+		}
 	}
 }
 
@@ -548,6 +567,15 @@ func (v *View) drawCell(x, y int, ch rune, combc []rune, style tcell.Style) {
 
 // DisplayView renders the view to the screen
 func (v *View) DisplayView() {
+	if v.Type == vtLog {
+		// Log views should always follow the cursor...
+		v.Relocate()
+	}
+
+	if v.Buf.Settings["syntax"].(bool) {
+		v.matches = Match(v)
+	}
+
 	// The charNum we are currently displaying
 	// starts at the start of the viewport
 	charNum := Loc{0, v.Topline}
@@ -687,6 +715,8 @@ func (v *View) DisplayView() {
 
 		// Now we actually draw the line
 		colN := 0
+		strWidth := 0
+		tabSize := int(v.Buf.Settings["tabsize"].(float64))
 		for _, ch := range line {
 			lineStyle := defStyle
 
@@ -723,7 +753,7 @@ func (v *View) DisplayView() {
 				// First the user may have configured an `indent-char` to be displayed to show that this
 				// is a tab character
 				lineIndentStyle := defStyle
-				if style, ok := colorscheme["indent-char"]; ok {
+				if style, ok := colorscheme["indent-char"]; ok && v.Buf.Settings["indentchar"].(string) != " " {
 					lineIndentStyle = style
 				}
 				if v.Cursor.HasSelection() &&
@@ -748,8 +778,9 @@ func (v *View) DisplayView() {
 					v.drawCell(screenX-v.leftCol, screenY, indentChar[0], nil, lineIndentStyle)
 				}
 				// Now the tab has to be displayed as a bunch of spaces
-				tabSize := int(v.Buf.Settings["tabsize"].(float64))
-				for i := 0; i < tabSize-1; i++ {
+				visLoc := strWidth
+				remainder := tabSize - (visLoc % tabSize)
+				for i := 0; i < remainder-1; i++ {
 					screenX++
 					if screenX-v.x-v.leftCol >= v.lineNumOffset {
 						v.drawCell(screenX-v.leftCol, screenY, ' ', nil, lineStyle)
@@ -773,6 +804,7 @@ func (v *View) DisplayView() {
 			charNum = charNum.Move(1, v.Buf)
 			screenX++
 			colN++
+			strWidth += StringWidth(string(ch), tabSize)
 		}
 		// Here we are at a newline
 
@@ -802,6 +834,13 @@ func (v *View) DisplayView() {
 				}
 			}
 			if screenX-v.x-v.leftCol+i >= v.lineNumOffset {
+				colorcolumn := int(v.Buf.Settings["colorcolumn"].(float64))
+				if colorcolumn != 0 && screenX-v.lineNumOffset+i == colorcolumn-1 {
+					if style, ok := colorscheme["color-column"]; ok {
+						fg, _, _ := style.Decompose()
+						lineStyle = lineStyle.Background(fg)
+					}
+				}
 				v.drawCell(screenX-v.leftCol+i, screenY, ' ', nil, lineStyle)
 			}
 		}

runtime/colorschemes/atom-dark-tc.micro

@@ -17,3 +17,4 @@ color-link current-line-number "#656866,#1D1F21"
 color-link gutter-error "#FF4444,#1D1F21"
 color-link gutter-warning "#EEEE77,#1D1F21"
 color-link cursor-line "#2D2F31"
+color-link color-column "#2D2F31"

runtime/colorschemes/bubblegum.micro

@@ -17,3 +17,4 @@ color-link gutter-error "197,231"
 color-link gutter-warning "134,231"
 color-link line-number "246,254"
 color-link cursor-line "254"
+color-link color-column "254"

runtime/colorschemes/gruvbox.micro

@@ -13,3 +13,4 @@ color-link todo "bold 223,235"
 color-link line-number "243,237"
 color-link current-line-number "172,237"
 color-link cursor-line "237"
+color-link color-column "237"

runtime/colorschemes/monokai.micro

@@ -17,3 +17,4 @@ color-link current-line-number "#AAAAAA,#282828"
 color-link gutter-error "#CB4B16,#282828"
 color-link gutter-warning "#E6DB74,#282828"
 color-link cursor-line "#323232"
+color-link color-column "#323232"

runtime/colorschemes/simple.micro

@@ -14,3 +14,4 @@ color-link current-line-number "red"
 color-link gutter-error ",red"
 color-link gutter-warning "red"
 color-link cursor-line "white"
+color-link color-column "white"

runtime/colorschemes/solarized-tc.micro

@@ -16,3 +16,4 @@ color-link current-line-number "#586E75,#002833"
 color-link gutter-error "#003541,#CB4B16"
 color-link gutter-warning "#CB4B16,#002833"
 color-link cursor-line "#003541"
+color-link color-column "#003541"

runtime/colorschemes/solarized.micro

@@ -15,3 +15,4 @@ color-link current-line-number "brightgreen,default"
 color-link gutter-error "black,brightred"
 color-link gutter-warning "brightred,default"
 color-link cursor-line "black"
+color-link color-column "black"

runtime/colorschemes/zenburn.micro

@@ -17,4 +17,5 @@ color-link line-number "248,238"
 color-link gutter-error "237,174"
 color-link gutter-warning "174,237"
 color-link cursor-line "238"
+color-link color-column "238"
 color-link current-line-number "188,237"

runtime/help/colors.md

@@ -19,12 +19,12 @@ Micro comes with a number of colorschemes by default. Here is the list:
 * solarized: this is the solarized colorscheme. 
   You should have the solarized color palette in your terminal to use it.
 
-* solarized-tc: this is the solarized colorscheme for true color, just 
+* solarized-tc: this is the solarized colorscheme for true color; just 
   make sure your terminal supports true color before using it and that the 
   MICRO_TRUECOLOR environment variable is set to 1 before starting micro.
 
-* monokai: this is the monokai colorscheme, you may recognize it as 
-  sublime text's default colorscheme. It requires true color to
+* monokai: this is the monokai colorscheme; you may recognize it as 
+  Sublime Text's default colorscheme. It requires true color to
   look perfect, but the 256 color approximation looks very good as well.
 
 * atom-dark-tc: this colorscheme is based off of Atom's "dark" colorscheme.
@@ -108,6 +108,8 @@ Here is a list of the colorscheme groups that you can use:
 * gutter-error
 * gutter-warning
 * cursor-line
+* current-line-number
+* color-column
 
 Colorschemes can be placed in the `~/.config/micro/colorschemes` directory to be used.
 

runtime/help/commands.md

@@ -5,12 +5,13 @@ Here are the possible commands that you can use.
 
 * `quit`: Quits micro.
 
-* `save`: Saves the current buffer.
+* `save filename?`: Saves the current buffer. If the filename is provided it will
+   'save as' the filename.
 
 * `replace "search" "value" flags`: This will replace `search` with `value`. 
    The `flags` are optional.
    At this point, there is only one flag: `c`, which enables `check` mode 
-   which asks if you'd like to perform the replacement each time
+   which asks if you'd like to perform the replacement each time.
 
    Note that `search` must be a valid regex.  If one of the arguments
    does not have any spaces in it, you may omit the quotes.
@@ -23,6 +24,10 @@ Here are the possible commands that you can use.
 
 * `show option`: shows the current value of the given option.
 
+* `eval "expression"`: Evaluates a Lua expression. Note that micro will not
+   print anything so you should use `messenger:Message(...)` to display a
+   value.
+
 * `run sh-command`: runs the given shell command in the background. The 
    command's output will be displayed in one line when it finishes running.
 
@@ -30,19 +35,32 @@ Here are the possible commands that you can use.
    keybindings above for more info about what keys and actions are available.
 
 * `vsplit filename`: opens a vertical split with `filename`. If no filename is
-   provided, a vertical split is opened with an empty buffer
+   provided, a vertical split is opened with an empty buffer.
 
 * `hsplit filename`: same as `vsplit` but opens a horizontal split instead of
-   a vertical split
+   a vertical split.
 
 * `tab filename`: opens the given file in a new tab.
 
+* `log`: opens a log of all messages and debug statements.
+
+* `plugin install plugin_name`: installs the given plugin.
+
+* `plugin remove plugin_name`: removes the given plugin.
+
+* `plugin list`: lists all installed plugins.
+
+* `plugin update`: updates all installed plugins.
+
+* `plugin search plugin_name`: searches for the given plugin.
+   Note that you can find a list of all available plugins at
+   github.com/micro-editor/plugin-channel.
+
+   You can also see more information about the plugin manager
+   in the `Plugin Manager` section of the `plugins` help topic.
+
 ---
 
 The following commands are provided by the default plugins:
 
 * `lint`: Lint the current file for errors.
-
-* `gofmt`: Run gofmt on the current file.
-
-* `goimports`: Run goimports on the current file.

runtime/help/help.md

@@ -3,18 +3,32 @@
 Micro is a terminal-based text editor that aims to be easy to use and intuitive, 
 while also taking advantage of the full capabilities of modern terminals.
 
-*Press CtrlQ to quit, and CtrlS to save.*
-
 If you want to see all the keybindings press CtrlE and type `help keybindings`.
 
 See the next section for more information about documentation and help.
 
+### Quick-start
+
+Press CtrlQ to quit, and CtrlS to save. Press CtrlE to start typing commands
+and you can see which commands are available by pressing tab, or by
+viewing the help topic `> help commands`. When I write `> ...` I mean press
+CtrlE and then type whatever is there.
+
+Move the cursor around with the mouse or the arrow keys.
+
+If the colorscheme doesn't look good, you can change it with `> set colorscheme ...`.
+You can press tab to see the available colorschemes, or see more information with
+`> help colors`.
+
+Press CtrlW to move between splits, and type `> vsplit filename` or `> hsplit filename`
+to open a new split.
+
 ### Accessing more help
 
 Micro has a built-in help system much like Vim's (although less extensive).
 
-To use it, press CtrlE to access command mode and type in help followed by a topic.
-Typing help followed by nothing will open this page.
+To use it, press CtrlE to access command mode and type in `help` followed by a topic.
+Typing `help` followed by nothing will open this page.
 
 Here are the possible help topics that you can read:
 
@@ -26,7 +40,7 @@ Here are the possible help topics that you can read:
 * colors: Explains micro's colorscheme and syntax highlighting engine and how to create your
   own colorschemes or add new languages to the engine
 
-For example to open the help page on plugins you would press CtrlE and type `help plugins`.
+For example, to open the help page on plugins you would press CtrlE and type `help plugins`.
 
 I recommend looking at the `tutorial` help file because it is short for each section and
 gives concrete examples of how to use the various configuration options in micro. However,

runtime/help/keybindings.md

@@ -5,74 +5,82 @@ you can rebind them to your liking.
 
 ```json
 {
-	"Up":             "CursorUp",
-	"Down":           "CursorDown",
-	"Right":          "CursorRight",
-	"Left":           "CursorLeft",
-	"ShiftUp":        "SelectUp",
-	"ShiftDown":      "SelectDown",
-	"ShiftLeft":      "SelectLeft",
-	"ShiftRight":     "SelectRight",
-	"AltLeft":        "WordLeft",
-	"AltRight":       "WordRight",
-	"AltShiftRight":  "SelectWordRight",
-	"AltShiftLeft":   "SelectWordLeft",
-	"CtrlLeft":       "StartOfLine",
-	"CtrlRight":      "EndOfLine",
-	"CtrlShiftLeft":  "SelectToStartOfLine",
-	"CtrlShiftRight": "SelectToEndOfLine",
-	"CtrlUp":         "CursorStart",
-	"CtrlDown":       "CursorEnd",
-	"CtrlShiftUp":    "SelectToStart",
-	"CtrlShiftDown":  "SelectToEnd",
-	"Enter":          "InsertEnter",
-	"Space":          "InsertSpace",
-	"Backspace":      "Backspace",
-	"Backspace2":     "Backspace",
-	"Alt-Backspace":  "DeleteWordLeft",
-	"Alt-Backspace2": "DeleteWordLeft",
-	"Tab":            "InsertTab,IndentSelection",
-	"CtrlO":          "OpenFile",
-	"CtrlS":          "Save",
-	"CtrlF":          "Find",
-	"CtrlN":          "FindNext",
-	"CtrlP":          "FindPrevious",
-	"CtrlZ":          "Undo",
-	"CtrlY":          "Redo",
-	"CtrlC":          "Copy",
-	"CtrlX":          "Cut",
-	"CtrlK":          "CutLine",
-	"CtrlD":          "DuplicateLine",
-	"CtrlV":          "Paste",
-	"CtrlA":          "SelectAll",
-	"CtrlT":          "AddTab",
-	"CtrlRightSq":    "PreviousTab",
-	"CtrlBackslash":  "NextTab",
-	"Home":           "Start",
-	"End":            "End",
-	"CtrlHome":       "CursorStart",
-	"CtrlEnd":        "CursorEnd",
-	"PageUp":         "CursorPageUp",
-	"PageDown":       "CursorPageDown",
-	"CtrlG":          "ToggleHelp",
-	"CtrlR":          "ToggleRuler",
-	"CtrlL":          "JumpLine",
-	"Delete":         "Delete",
-	"Esc":            "ClearStatus",
-	"CtrlB":          "ShellMode",
-	"CtrlQ":          "Quit",
-	"CtrlE":          "CommandMode",
-	"CtrlW":          "NextSplit",
-	"CtrlU":          "ToggleMacro",
-	"CtrlJ":          "PlayMacro",
-	
-	// Emacs-style keybindings
-	"Alt-f": "WordRight",
-	"Alt-b": "WordLeft",
-	"Alt-a": "StartOfLine",
-	"Alt-e": "EndOfLine",
-	"Alt-p": "CursorUp",
-	"Alt-n": "CursorDown"
+    "Up":             "CursorUp",
+    "Down":           "CursorDown",
+    "Right":          "CursorRight",
+    "Left":           "CursorLeft",
+    "ShiftUp":        "SelectUp",
+    "ShiftDown":      "SelectDown",
+    "ShiftLeft":      "SelectLeft",
+    "ShiftRight":     "SelectRight",
+    "AltLeft":        "WordLeft",
+    "AltRight":       "WordRight",
+    "AltShiftRight":  "SelectWordRight",
+    "AltShiftLeft":   "SelectWordLeft",
+    "CtrlLeft":       "StartOfLine",
+    "CtrlRight":      "EndOfLine",
+    "CtrlShiftLeft":  "SelectToStartOfLine",
+    "CtrlShiftRight": "SelectToEndOfLine",
+    "CtrlUp":         "CursorStart",
+    "CtrlDown":       "CursorEnd",
+    "CtrlShiftUp":    "SelectToStart",
+    "CtrlShiftDown":  "SelectToEnd",
+    "Enter":          "InsertNewline",
+    "Space":          "InsertSpace",
+    "CtrlH":          "Backspace",
+    "Backspace":      "Backspace",
+    "Alt-CtrlH":      "DeleteWordLeft",
+    "Alt-Backspace":  "DeleteWordLeft",
+    "Tab":            "IndentSelection,InsertTab",
+    "Backtab":        "OutdentSelection",
+    "CtrlO":          "OpenFile",
+    "CtrlS":          "Save",
+    "CtrlF":          "Find",
+    "CtrlN":          "FindNext",
+    "CtrlP":          "FindPrevious",
+    "CtrlZ":          "Undo",
+    "CtrlY":          "Redo",
+    "CtrlC":          "Copy",
+    "CtrlX":          "Cut",
+    "CtrlK":          "CutLine",
+    "CtrlD":          "DuplicateLine",
+    "CtrlV":          "Paste",
+    "CtrlA":          "SelectAll",
+    "CtrlT":          "AddTab",
+    "CtrlRightSq":    "PreviousTab",
+    "CtrlBackslash":  "NextTab",
+    "Home":           "StartOfLine",
+    "End":            "EndOfLine",
+    "CtrlHome":       "CursorStart",
+    "CtrlEnd":        "CursorEnd",
+    "PageUp":         "CursorPageUp",
+    "PageDown":       "CursorPageDown",
+    "CtrlG":          "ToggleHelp",
+    "CtrlR":          "ToggleRuler",
+    "CtrlL":          "JumpLine",
+    "Delete":         "Delete",
+    "CtrlB":          "ShellMode",
+    "CtrlQ":          "Quit",
+    "CtrlE":          "CommandMode",
+    "CtrlW":          "NextSplit",
+    "CtrlU":          "ToggleMacro",
+    "CtrlJ":          "PlayMacro",
+
+    // Emacs-style keybindings
+    "Alt-f": "WordRight",
+    "Alt-b": "WordLeft",
+    "Alt-a": "StartOfLine",
+    "Alt-e": "EndOfLine",
+    "Alt-p": "CursorUp",
+    "Alt-n": "CursorDown",
+
+    // Integration with file managers
+    "F1":  "ToggleHelp",
+    "F2":  "Save",
+    "F4":  "Quit",
+    "F7":  "Find",
+    "F10": "Quit",
+    "Esc": "Quit",
 }
 ```
 
@@ -143,6 +151,7 @@ Delete
 Center
 InsertTab
 Save
+SaveAs
 Find
 FindNext
 FindPrevious
@@ -178,6 +187,9 @@ AddTab
 PreviousTab
 NextTab
 NextSplit
+Unsplit
+VSplit
+HSplit
 PreviousSplit
 ToggleMacro
 PlayMacro
@@ -309,9 +321,11 @@ Tab
 Esc
 Escape
 Enter
-Backspace2
 ```
 
+Note: On some old terminal emulators and on Windows machines, `CtrlH` should be used
+for backspace.
+
 Additionally, alt keys can be bound by using `Alt-key`. For example `Alt-a`
 or `Alt-Up`. Micro supports an optional `-` between modifiers like `Alt` and `Ctrl`
 so `Alt-a` could be rewritten as `Alta` (case matters for alt bindings). This is

runtime/help/options.md

@@ -14,7 +14,7 @@ Here are the options that you can set:
 
 	default value: `default`
 	Note that the default colorschemes (default, solarized, and solarized-tc)
-	are not located in configDir, because they are embedded in the micro binary
+	are not located in configDir, because they are embedded in the micro binary.
 
 	The colorscheme can be selected from all the files in the 
 	~/.config/micro/colorschemes/ directory. Micro comes by default with three
@@ -23,6 +23,11 @@ Here are the options that you can set:
     You can read more about micro's colorschemes in the `colors` help topic
     (`help colors`).
 
+* `colorcolumn`: if this is not set to 0, it will display a column at the specified
+   column. This is useful if you want column 80 to be highlighted special for example.
+
+	default value: `0`
+
 * `tabsize`: sets the tab size to `option`
 
 	default value: `4`
@@ -88,24 +93,35 @@ Here are the options that you can set:
 
 	default value: `2`
 
+* `autosave`: micro will save the buffer every 8 seconds automatically.
+   Micro also will automatically save and quit when you exit without asking.
+   Be careful when using this feature, because you might accidentally save a file,
+   overwriting what was there before.
+
+	default value: `off`
+
+* `pluginchannels`: contains all the channels micro's plugin manager will search
+   for plugins in. A channel is simply a list of 'repository' json files which contain
+   metadata about the given plugin. See the `Plugin Manager` section of the `plugins` help topic
+   for more information.
+
+    default value: `https://github.com/micro-editor/plugin-channel`
+
+* `pluginrepos`: contains all the 'repositories' micro's plugin manager will search for
+   plugins in. A repository consists of a `repo.json` file which contains metadata for a
+   single plugin.
+
+    default value: ` `
+
 ---
 
 Default plugin options:
 
-* `linter`: lint languages on save (supported languages are C, D, Go, Java,
-   Javascript, Lua). Provided by the `linter` plugin.
+* `autoclose`: Automatically close `{}` `()` `[]` `""` `''`. Provided by the `autoclose` plugin
 
 	default value: `on`
 
-* `autoclose`: Automatically close `{}` `()` `[]` `""` `''`. Provided by the autoclose plugin
-
-	default value: `on`
-
-* `goimports`: Run goimports on save. Provided by the `go` plugin.
-
-	default value: `off`
-
-* `gofmt`: Run gofmt on save. Provided by the `go` plugin.
+* `linter`: Automatically lint when the file is saved. Provided by the `linter` plugin
 
 	default value: `on`
 

runtime/help/plugins.md

@@ -43,31 +43,39 @@ for functions are given using Go's type system):
 * `OS`: variable which gives the OS micro is currently running on (this is the same
 as Go's GOOS variable, so `darwin`, `windows`, `linux`, `freebsd`...)
 
+* `configDir`: contains the path to the micro configuration files
+
 * `tabs`: a list of all the tabs currently in use
 
 * `curTab`: the index of the current tabs in the tabs list
 
 * `messenger`: lets you send messages to the user or create prompts
 
+* `RuneStr(r rune) string`: returns a string containing the given rune
+
+* `Loc(x, y int) Loc`: returns a new `Loc` struct
+
+* `JoinPaths(dir... string) string` combines multiple directories to a full path
+
 * `GetOption(name string)`: returns the value of the requested option
 
 * `AddOption(name string, value interface{})`: sets the given option with the given
-   value (`interface{}` means any type in Go).
+   value (`interface{}` means any type in Go)
 
 * `SetOption(option, value string)`: sets the given option to the value. This will
    set the option globally, unless it is a local only option.
 
 * `SetLocalOption(option, value string, buffer *Buffer)`: sets the given option to
-   the value locally in the given buffer.
+   the value locally in the given buffer
 
-* `BindKey(key, action string)`: binds `key` to `action`.
+* `BindKey(key, action string)`: binds `key` to `action`
 
 * `MakeCommand(name, function string, completions ...Completion)`: 
    creates a command with `name` which will call `function` when executed.
    Use 0 for completions to get NoCompletion.
 
 * `MakeCompletion(function string)`:
-   creates a `Completion` to use with `MakeCommand`.
+   creates a `Completion` to use with `MakeCommand`
 
 * `CurView()`: returns the current view
 
@@ -109,6 +117,19 @@ The possible methods which you can call using the `messenger` variable are:
 
 If you want a standard prompt, just use `messenger.Prompt(prompt, "", 0)`
 
+# Adding help files, syntax files, or colorschemes in your plugin
+
+You can use the `AddRuntimeFile(name, type, path string)` function to add various kinds of
+files to your plugin. For example, if you'd like to add a help topic and to your plugin
+called `test`, you would create the `test.md` file for example, and runt the function:
+
+```lua
+AddRuntimeFile("test", "help", "test.md")
+```
+
+Use `AddRuntimeFilesFromDirectory(name, type, dir, pattern)` to add a number of files
+to the runtime.
+
 # Autocomplete command arguments
 
 See this example to learn how to use `MakeCompletion` and `MakeCommand`
@@ -141,5 +162,44 @@ MakeCommand("foo", "example.foo", MakeCompletion("example.complete"))
 
 # Default plugins
 
-For examples of plugins, see the default plugins `linter`, `go`, and `autoclose`.
-They are stored in Micro's github repository [here](https://github.com/zyedidia/micro/tree/master/runtime/plugins).
+For examples of plugins, see the default `autoclose` and `linter` plugins
+(stored in the normal micro core repo under `runtime/plugins`) as well as
+any plugins that are stored in the official channel [here](https://github.com/micro-editor/plugin-channel).
+
+# Plugin Manager
+
+Micro also has a built in plugin manager which you can invoke with the `> plugin ...` command.
+
+For the valid commands you can use, see the `command` help topic.
+
+The manager fetches plugins from the channels (which is simply a list of plugin metadata)
+which it knows about. By default, micro only knows about the official channel which is located
+at github.com/micro-editor/plugin-channel but you can add your own third-party channels using
+the `pluginchannels` option and you can directly link third-party plugins to allow installation
+through the plugin manager with the `pluginrepos` option.
+
+If you'd like to publish a plugin you've made as an official plugin, you should upload your
+plugin online (to Github preferably) and add a `repo.json` file. This file will contain the
+metadata for your plugin. Here is an example:
+
+```json
+[{
+  "Name": "pluginname",
+  "Description": "Here is a nice concise description of my plugin",
+  "Tags": ["python", "linting"],
+  "Versions": [
+    {
+      "Version": "1.0.0",
+      "Url": "https://github.com/user/plugin/archive/v1.0.0.zip",
+      "Require": {
+        "micro": ">=1.0.3"
+      }
+    }
+  ]
+}]
+```
+
+Then open a pull request at github.com/micro-editor/plugin-channel adding a link to the
+raw `repo.json` that is in your plugin repository.
+To make updating the plugin work, the first line of your plugins lua code should contain the version of the plugin. (Like this: `VERSION = "1.0.0"`)
+Please make sure to use [semver](http://semver.org/) for versioning.

runtime/help/tutorial.md

@@ -6,6 +6,17 @@ and use `init.lua` to configure micro to your liking.
 
 Hopefully you'll find this useful.
 
+### Plugins
+
+Micro has a plugin manager which can automatically download plugins for you.
+To see the plugins 'official' plugins, go to github.com/micro-editor/plugin-channel.
+
+For example, if you'd like to install the snippets plugin (listed in that repo),
+just press `CtrlE` to execute a command, and type `plugin install snippets`.
+
+For more information about the plugin manager, see the end of the `plugins` help
+topic.
+
 ### Settings
 
 In micro, your settings are stored in `~/.config/micro/settings.json`, a file

runtime/plugins/autoclose/autoclose.lua

@@ -6,7 +6,7 @@ if GetOption("autoclose") == nil then
     AddOption("autoclose", true)
 end
 
-local autoclosePairs = {"\"\"", "''", "()", "{}", "[]"}
+local autoclosePairs = {"\"\"", "''", "``", "()", "{}", "[]"}
 local autoNewlinePairs = {"()", "{}", "[]"}
 
 function onRune(r, v)

runtime/plugins/go/go.lua

@@ -1,52 +0,0 @@
-if GetOption("goimports") == nil then
-    AddOption("goimports", false)
-end
-if GetOption("gofmt") == nil then
-    AddOption("gofmt", true)
-end
-
-MakeCommand("goimports", "go.goimports", 0)
-MakeCommand("gofmt", "go.gofmt", 0)
-
-function onViewOpen(view)
-    if view.Buf:FileType() == "go" then
-        SetLocalOption("tabstospaces", "off", view)
-    end
-end
-
-function onSave(view)
-    if CurView().Buf:FileType() == "go" then
-        if GetOption("goimports") then
-            goimports()
-        elseif GetOption("gofmt") then
-            gofmt()
-        end
-    end
-end
-
-function gofmt()
-    CurView():Save(false)
-    local handle = io.popen("gofmt -w " .. CurView().Buf.Path)
-    local result = handle:read("*a")
-    handle:close()
-
-    CurView():ReOpen()
-end
-
-function goimports()
-    CurView():Save(false)
-    local handle = io.popen("goimports -w " .. CurView().Buf.Path)
-    local result = split(handle:read("*a"), ":")
-    handle:close()
-
-    CurView():ReOpen()
-end
-
-function split(str, sep)
-    local result = {}
-    local regex = ("([^%s]+)"):format(sep)
-    for each in str:gmatch(regex) do
-        table.insert(result, each)
-    end
-    return result
-end

runtime/plugins/linter/linter.lua

@@ -22,7 +22,7 @@ function runLinter()
     elseif ft == "lua" then
         lint("luacheck", "luacheck --no-color " .. file, "%f:%l:%d+: %m")
     elseif ft == "python" then
-        lint("pyflakes", "pyflakes " .. file, "%f:%l: %m")
+        lint("pyflakes", "pyflakes " .. file, "%f:%l:.-:? %m")
     elseif ft == "c" then
         lint("gcc", "gcc -fsyntax-only -Wall -Wextra " .. file, "%f:%l:%d+:.+: %m")
     elseif ft == "d" then
@@ -51,7 +51,7 @@ end
 function onExit(output, linter, errorformat)
     local lines = split(output, "\n")
 
-    local regex = errorformat:gsub("%%f", "(.+)"):gsub("%%l", "(%d+)"):gsub("%%m", "(.+)")
+    local regex = errorformat:gsub("%%f", "(..-)"):gsub("%%l", "(%d+)"):gsub("%%m", "(.+)")
     for _,line in ipairs(lines) do
         -- Trim whitespace
         line = line:match("^%s*(.+)%s*$")

runtime/syntax/html.micro

@@ -1,7 +1,7 @@
 ## Here is a short improved example for HTML.
 ##
 syntax "html" "\.htm[l]?$"
-color identifier start="<" end=">"
+color identifier "<.*?>"
 color special "&[^;[[:space:]]]*;"
 color constant ""[^"]*"|qq\|.*\|"
 color statement "(alt|bgcolor|height|href|label|longdesc|name|onclick|onfocus|onload|onmouseover|size|span|src|style|target|type|value|width)="

runtime/syntax/pkgbuild.micro

@@ -1,23 +0,0 @@
-## Arch PKGBUILD files
-##
-syntax "pkgbuild" "^.*PKGBUILD$"
-color green start="^." end="$"
-color cyan "^.*(pkgbase|pkgname|pkgver|pkgrel|pkgdesc|arch|url|license).*=.*$"
-color brightcyan "\<(pkgbase|pkgname|pkgver|pkgrel|pkgdesc|arch|url|license)\>"
-color brightcyan "(\$|\$\{|\$\()(pkgbase|pkgname|pkgver|pkgrel|pkgdesc|arch|url|license)(\}|\))"
-color cyan "^.*(depends|makedepends|optdepends|conflicts|provides|replaces).*=.*$"
-color brightcyan "\<(depends|makedepends|optdepends|conflicts|provides|replaces)\>"
-color brightcyan "(\$|\$\{|\$\()(depends|makedepends|optdepends|conflicts|provides|replaces)(\}|\))"
-color cyan "^.*(groups|backup|noextract|options).*=.*$"
-color brightcyan "\<(groups|backup|noextract|options)\>"
-color brightcyan "(\$|\$\{|\$\()(groups|backup|noextract|options)(\}|\))"
-color cyan "^.*(install|source|md5sums|sha1sums|sha256sums|sha384sums|sha512sums).*=.*$"
-color brightcyan "\<(install|source|md5sums|sha1sums|sha256sums|sha384sums|sha512sums)\>"
-color brightcyan "(\$|\$\{|\$\()(install|source|md5sums|sha1sums|sha256sums|sha384sums|sha512sums)(\}|\))"
-color brightcyan "\<(startdir|srcdir|pkgdir)\>"
-color cyan "\.install"
-color brightwhite "=" "'" "\(" "\)" "\"" "#.*$" "\," "\{" "\}"
-color brightred "build\(\)"
-color brightred "package_.*.*$"
-color brightred "\<(configure|make|cmake|scons)\>"
-color red "\<(DESTDIR|PREFIX|prefix|sysconfdir|datadir|libdir|includedir|mandir|infodir)\>"

runtime/syntax/xml.micro

@@ -1,11 +1,7 @@
 ## Here is an example for xml files.
-##
 
-syntax "xml" "\.([jrs]?html?|xml|sgml?|rng|plist)$"
-color white "^.+$"
-color green  start="<" end=">"
-color cyan   "<[^> ]+"
-color cyan   ">"
-color yellow start="<!DOCTYPE" end="[/]?>"
-color yellow start="<!--" end="-->"
-color red    "&[^;]*;"
+syntax "xml" "\.(xml|sgml?|rng|plist)$"
+color identifier "<.*?>"
+color comment start="<!DOCTYPE" end="[/]?>"
+color comment start="<!--" end="-->"
+color special    "&[^;]*;"

runtime/syntax/yaml.micro

@@ -1,5 +1,5 @@
 syntax "yaml" "\.ya?ml$"
-header "^---" "%YAML"
+header "%YAML"
 
 color type     "(^| )!!(binary|bool|float|int|map|null|omap|seq|set|str) "
 color constant  "\b(YES|yes|Y|y|ON|on|NO|no|N|n|OFF|off)\b"

snapcraft.yaml

@@ -0,0 +1,19 @@
+name: micro
+version: master
+summary: A modern and intuitive terminal-based text editor
+description: |
+  Micro is a terminal-based text editor that aims to be easy to use and
+  intuitive, while also taking advantage of the full capabilities of modern
+  terminals.
+confinement: strict
+
+apps:
+  micro:
+    command: bin/micro
+    plugs: [home]
+
+parts:
+  micro:
+    source: .
+    plugin: go
+    go-importpath: github.com/zyedidia/micro

tools/build-version.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+
+	"github.com/blang/semver"
+)
+
+func getTag(match ...string) (string, *semver.PRVersion) {
+	args := append([]string{
+		"describe", "--tags",
+	}, match...)
+	if tag, err := exec.Command("git", args...).Output(); err != nil {
+		return "", nil
+	} else {
+		tagParts := strings.Split(string(tag), "-")
+		if len(tagParts) == 3 {
+			if ahead, err := semver.NewPRVersion(tagParts[1]); err == nil {
+				return tagParts[0], &ahead
+			}
+		}
+
+		return tagParts[0], nil
+	}
+}
+
+func main() {
+	// Find the last vX.X.X Tag and get how many builds we are ahead of it.
+	versionStr, ahead := getTag("--match", "v*")
+	version, err := semver.ParseTolerant(versionStr)
+	if err != nil {
+		// no version tag found so just return what ever we can find.
+		fmt.Println(getTag())
+		return
+	}
+	// Get the tag of the current revision.
+	tag, _ := getTag("--exact-match")
+	if tag == versionStr {
+		// Seems that we are going to build a release.
+		// So the version number should already be correct.
+		fmt.Println(version.String())
+		return
+	}
+
+	// If we don't have any tag assume "dev"
+	if tag == "" {
+		tag = "dev"
+	}
+	// Get the most likely next version:
+	version.Patch = version.Patch + 1
+
+	if pr, err := semver.NewPRVersion(tag); err == nil {
+		// append the tag as pre-release name
+		version.Pre = append(version.Pre, pr)
+	}
+
+	if ahead != nil {
+		// if we know how many commits we are ahead of the last release, append that too.
+		version.Pre = append(version.Pre, *ahead)
+	}
+
+	fmt.Println(version.String())
+}

tools/cross-compile.sh

@@ -10,51 +10,51 @@ HASH="$(git rev-parse --short HEAD)"
 
 # Mac
 echo "OSX 64"
-GOOS=darwin GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=darwin GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-osx.tar.gz micro-$1
 mv micro-$1-osx.tar.gz binaries
 
 # Linux
 echo "Linux 64"
-GOOS=linux GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=linux GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-linux64.tar.gz micro-$1
 mv micro-$1-linux64.tar.gz binaries
 echo "Linux 32"
-GOOS=linux GOARCH=386 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=linux GOARCH=386 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-linux32.tar.gz micro-$1
 mv micro-$1-linux32.tar.gz binaries
 echo "Linux arm"
-GOOS=linux GOARCH=arm go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=linux GOARCH=arm go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-linux-arm.tar.gz micro-$1
 mv micro-$1-linux-arm.tar.gz binaries
 
 # NetBSD
 echo "NetBSD 64"
-GOOS=netbsd GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=netbsd GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-netbsd64.tar.gz micro-$1
 mv micro-$1-netbsd64.tar.gz binaries
 echo "NetBSD 32"
-GOOS=netbsd GOARCH=386 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=netbsd GOARCH=386 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-netbsd32.tar.gz micro-$1
 mv micro-$1-netbsd32.tar.gz binaries
 
 # OpenBSD
 echo "OpenBSD 64"
-GOOS=openbsd GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=openbsd GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-openbsd64.tar.gz micro-$1
 mv micro-$1-openbsd64.tar.gz binaries
 echo "OpenBSD 32"
-GOOS=openbsd GOARCH=386 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=openbsd GOARCH=386 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-openbsd32.tar.gz micro-$1
 mv micro-$1-openbsd32.tar.gz binaries
 
 # FreeBSD
 echo "FreeBSD 64"
-GOOS=freebsd GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=freebsd GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-freebsd64.tar.gz micro-$1
 mv micro-$1-freebsd64.tar.gz binaries
 echo "FreeBSD 32"
-GOOS=freebsd GOARCH=386 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
+GOOS=freebsd GOARCH=386 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro ./cmd/micro
 tar -czf micro-$1-freebsd32.tar.gz micro-$1
 mv micro-$1-freebsd32.tar.gz binaries
 
@@ -62,11 +62,11 @@ rm micro-$1/micro
 
 # Windows
 echo "Windows 64"
-GOOS=windows GOARCH=amd64 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro.exe ./cmd/micro
+GOOS=windows GOARCH=amd64 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro.exe ./cmd/micro
 zip -r -q -T micro-$1-win64.zip micro-$1
 mv micro-$1-win64.zip binaries
 echo "Windows 32"
-GOOS=windows GOARCH=386 go build -ldflags "-X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro.exe ./cmd/micro
+GOOS=windows GOARCH=386 go build -ldflags "-s -w -X main.Version=$1 -X main.CommitHash=$HASH -X 'main.CompileDate=$(date -u '+%B %d, %Y')'" -o micro-$1/micro.exe ./cmd/micro
 zip -r -q -T micro-$1-win32.zip micro-$1
 mv micro-$1-win32.zip binaries