Merge remote-tracking branch 'zyedidia/master' into pm

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/messenger.go

@@ -269,36 +269,58 @@ 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 +331,23 @@ 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

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"runtime"
 	"strings"
 
@@ -242,9 +243,6 @@ func main() {
 	InitCommands()
 	InitBindings()
 
-	// Load the syntax files, including the colorscheme
-	LoadSyntaxFiles()
-
 	// Start the screen
 	InitScreen()
 
@@ -310,6 +308,14 @@ 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))
@@ -321,13 +327,18 @@ func main() {
 	L.SetGlobal("ListRuntimeFiles", luar.New(L, PluginListRuntimeFiles))
 	L.SetGlobal("AddRuntimeFile", luar.New(L, PluginAddRuntimeFile))
 
-	LoadPlugins()
-
 	jobs = make(chan JobFunction, 100)
 	events = make(chan tcell.Event, 100)
 
+	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") {

cmd/micro/plugin.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"io/ioutil"
 	"os"
-	"path/filepath"
 	"strings"
 
 	"github.com/layeh/gopher-luar"
@@ -13,12 +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
@@ -121,48 +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 {
-				fullPath := filepath.Join(configDir, "plugins", pluginName, f.Name())
-				if f.Name() == pluginName+".lua" {
-					data, _ := ioutil.ReadFile(fullPath)
-					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/rtfiles.go

@@ -11,6 +11,7 @@ const (
 	RTColorscheme = "colorscheme"
 	RTSyntax      = "syntax"
 	RTHelp        = "help"
+	RTPlugin      = "plugin"
 )
 
 // RuntimeFile allows the program to read runtime data like colorschemes or syntax files
@@ -121,6 +122,26 @@ func InitRuntimeFiles() {
 	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
@@ -144,12 +165,12 @@ func PluginListRuntimeFiles(fileType string) []string {
 }
 
 // PluginAddRuntimeFile adds a file to the runtime files for a plugin
-func PluginAddRuntimeFile(plugin, filetype, path string) {
-	fullpath := configDir + "/plugins/" + plugin + "/" + path
+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 = "runtime/plugins/" + plugin + "/" + path
+		fullpath = path.Join("runtime", "plugins", plugin, filePath)
 		AddRuntimeFile(filetype, assetFile(fullpath))
 	}
 }

runtime/help/plugins.md

@@ -43,12 +43,20 @@ 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

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)