Allow binding commands

Bind commands with `command:...`

Ref #974

cmd/micro/bindings.go

@@ -476,6 +476,9 @@ func BindKey(k, v string) {
 	for _, actionName := range actionNames {
 		if strings.HasPrefix(actionName, "Mouse") {
 			mouseActions = append(mouseActions, findMouseAction(actionName))
+		} else if strings.HasPrefix(actionName, "command:") {
+			cmd := strings.SplitN(actionName, ":", 2)[1]
+			actions = append(actions, CommandAction(cmd))
 		} else {
 			actions = append(actions, findAction(actionName))
 		}

cmd/micro/command.go

@@ -120,6 +120,13 @@ func DefaultCommands() map[string]StrCommand {
 	}
 }
 
+func CommandAction(cmd string) func(*View, bool) bool {
+	return func(v *View, usePlugin bool) bool {
+		HandleCommand(cmd)
+		return false
+	}
+}
+
 // PluginCmd installs, removes, updates, lists, or searches for given plugins
 func PluginCmd(args []string) {
 	if len(args) >= 1 {