codemirror 3, thnaks Roberto Perdomo and Mariano Reingart

applications/admin/static/codemirror/lib/util/runmode.js

@@ -1,43 +1,44 @@
 CodeMirror.runMode = function(string, modespec, callback, options) {
-  function esc(str) {
-    return str.replace(/[<&]/, function(ch) { return ch == "<" ? "&lt;" : "&amp;"; });
-  }
-
   var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
-  var isNode = callback.nodeType == 1;
-  var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
-  if (isNode) {
-    var node = callback, accum = [], col = 0;
+
+  if (callback.nodeType == 1) {
+    var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
+    var node = callback, col = 0;
+    node.innerHTML = "";
     callback = function(text, style) {
       if (text == "\n") {
-        accum.push("<br>");
+        node.appendChild(document.createElement("br"));
         col = 0;
         return;
       }
-      var escaped = "";
-      // HTML-escape and replace tabs
+      var content = "";
+      // replace tabs
       for (var pos = 0;;) {
         var idx = text.indexOf("\t", pos);
         if (idx == -1) {
-          escaped += esc(text.slice(pos));
+          content += text.slice(pos);
           col += text.length - pos;
           break;
         } else {
           col += idx - pos;
-          escaped += esc(text.slice(pos, idx));
+          content += text.slice(pos, idx);
           var size = tabSize - col % tabSize;
           col += size;
-          for (var i = 0; i < size; ++i) escaped += " ";
+          for (var i = 0; i < size; ++i) content += " ";
           pos = idx + 1;
         }
       }
 
-      if (style) 
-        accum.push("<span class=\"cm-" + esc(style) + "\">" + escaped + "</span>");
-      else
-        accum.push(escaped);
+      if (style) {
+        var sp = node.appendChild(document.createElement("span"));
+        sp.className = "cm-" + style.replace(/ +/g, " cm-");
+        sp.appendChild(document.createTextNode(content));
+      } else {
+        node.appendChild(document.createTextNode(content));
+      }
     };
   }
+
   var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
   for (var i = 0, e = lines.length; i < e; ++i) {
     if (i) callback("\n");
@@ -48,6 +49,4 @@ CodeMirror.runMode = function(string, modespec, callback, options) {
       stream.start = stream.pos;
     }
   }
-  if (isNode)
-    node.innerHTML = accum.join("");
 };