CodeMirror 5.19 (#12300)

media/editors/codemirror/addon/comment/comment.js

@@ -103,6 +103,7 @@
         self.lineComment(from, to, options);
       return;
     }
+    if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return
 
     var end = Math.min(to.line, self.lastLine());
     if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end;
@@ -162,13 +163,15 @@
     var endString = options.blockCommentEnd || mode.blockCommentEnd;
     if (!startString || !endString) return false;
     var lead = options.blockCommentLead || mode.blockCommentLead;
-    var startLine = self.getLine(start), endLine = end == start ? startLine : self.getLine(end);
-    var open = startLine.indexOf(startString), close = endLine.lastIndexOf(endString);
+    var startLine = self.getLine(start), open = startLine.indexOf(startString)
+    if (open == -1) return false
+    var endLine = end == start ? startLine : self.getLine(end)
+    var close = endLine.indexOf(endString, end == start ? open + startString.length : 0);
     if (close == -1 && start != end) {
       endLine = self.getLine(--end);
-      close = endLine.lastIndexOf(endString);
+      close = endLine.indexOf(endString);
     }
-    if (open == -1 || close == -1 ||
+    if (close == -1 ||
         !/comment/.test(self.getTokenTypeAt(Pos(start, open + 1))) ||
         !/comment/.test(self.getTokenTypeAt(Pos(end, close + 1))))
       return false;