From 782178ecbe41eafdac413bbcb9e23b3036e281fb Mon Sep 17 00:00:00 2001
From: nightwing <amirjanyan@gmail.com>
Date: Tue, 2 Apr 2013 02:33:31 +0400
Subject: [PATCH] add toggle line comment for css/html

---
 lib/ace/mode/text.js | 99 +++++++++++++++++++++++++++++++-------------
 1 file changed, 71 insertions(+), 28 deletions(-)

diff --git a/lib/ace/mode/text.js b/lib/ace/mode/text.js
index 6e79baf0..ca14fdec 100644
--- a/lib/ace/mode/text.js
+++ b/lib/ace/mode/text.js
@@ -66,27 +66,69 @@ var Mode = function() {
 
     this.lineCommentStart = "";
     this.blockComment = "";
+
     this.toggleCommentLines = function(state, session, startRow, endRow) {
         var doc = session.doc;
-        var regexpStart, lineCommentStart;
-        if (!this.lineCommentStart) {
-            return false
-        } else if (Array.isArray(this.lineCommentStart)) {
-            regexpStart = this.lineCommentStart.map(lang.escapeRegExp).join("|");
-            lineCommentStart = this.lineCommentStart[0] + " ";
-        } else {
-            regexpStart = lang.escapeRegExp(this.lineCommentStart);
-            lineCommentStart = this.lineCommentStart + " ";
-        }
-        regexpStart = new RegExp("^(\\s*)(?:" + regexpStart + ") ?");
 
-        function uncomment(line, i) {
-            var m = line.match(regexpStart);
-            m && doc.removeInLine(i, m[1].length, m[0].length);
-        }
-        function comment(line, i) {
-            if (ignoreBlankLines || /\S/.test(line))
-                doc.insertInLine({row: i, column: minSpace}, lineCommentStart);
+        var ignoreBlankLines = true;
+        var shouldRemove = true;
+        var minIndent = Infinity;
+
+        if (!this.lineCommentStart) {
+            if (!this.blockComment)
+                return false;
+            var lineCommentStart = this.blockComment.start;
+            var lineCommentEnd = this.blockComment.end;
+            var regexpStart = new RegExp("^(\\s*)(?:" + lang.escapeRegExp(lineCommentStart) + ")");
+            var regexpEnd = new RegExp("(?:" + lang.escapeRegExp(lineCommentEnd) + ")\\s*$");
+
+            var comment = function(line, i) {
+                if (testRemove(line, i))
+                    return;
+                if (!ignoreBlankLines || /\S/.test(line)) {
+                    doc.insertInLine({row: i, column: line.length}, lineCommentEnd);
+                    doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
+                }
+            };
+
+            var uncomment = function(line, i) {
+                var m;
+                if (m = line.match(regexpEnd))
+                    doc.removeInLine(i, line.length - m[0].length, line.length);
+                if (m = line.match(regexpStart))
+                    doc.removeInLine(i, m[1].length, m[0].length);
+            };
+
+            var testRemove = function(line, row) {
+                if (regexpStart.test(line))
+                    return true;
+                var tokens = session.getTokens(row);
+                for (var i = 0; i < tokens.length; i++) {
+                    if (tokens[i].type === 'comment')
+                        return true;
+                }
+            };
+        } else {
+            if (Array.isArray(this.lineCommentStart)) {
+                var regexpStart = this.lineCommentStart.map(lang.escapeRegExp).join("|");
+                var lineCommentStart = this.lineCommentStart[0] + " ";
+            } else {
+                var regexpStart = lang.escapeRegExp(this.lineCommentStart);
+                var lineCommentStart = this.lineCommentStart + " ";
+            }
+            regexpStart = new RegExp("^(\\s*)(?:" + regexpStart + ") ?");
+
+            var uncomment = function(line, i) {
+                var m = line.match(regexpStart);
+                m && doc.removeInLine(i, m[1].length, m[0].length);
+            };
+            var comment = function(line, i) {
+                if (!ignoreBlankLines || /\S/.test(line))
+                    doc.insertInLine({row: i, column: minIndent}, lineCommentStart);
+            };
+            var testRemove = function(line, i) {
+                return regexpStart.test(line);
+            };
         }
 
         function iter(fun) {
@@ -94,22 +136,23 @@ var Mode = function() {
                 fun(doc.getLine(i), i);
         }
 
-        var ignoreBlankLines = false;
-        var shouldRemove = true;
-        var minSpace = Infinity;
-        iter(function(line) {
+
+        var minEmptyLength = Infinity;
+        iter(function(line, i) {
             var indent = line.search(/\S/);
             if (indent !== -1) {
-                if (indent < minSpace)
-                    minSpace = indent;
-                if (shouldRemove && !regexpStart.test(line))
+                if (indent < minIndent)
+                    minIndent = indent;
+                if (shouldRemove && !testRemove(line, i))
                     shouldRemove = false;
+            } else if (minEmptyLength > line.length) {
+                minEmptyLength = line.length;
             }
         });
 
-        if (minSpace == Infinity) {
-            minSpace = 0;
-            ignoreBlankLines = true;
+        if (minIndent == Infinity) {
+            minIndent = minEmptyLength;
+            ignoreBlankLines = false;
             shouldRemove = false;
         }