codemirror3, thanks Roberto

applications/admin/static/codemirror/addon/fold/brace-fold.js

@@ -0,0 +1,37 @@
+CodeMirror.braceRangeFinder = function(cm, start) {
+  var line = start.line, lineText = cm.getLine(line);
+  var at = lineText.length, startChar, tokenType;
+  for (; at > 0;) {
+    var found = lineText.lastIndexOf("{", at);
+    var startToken = '{', endToken = '}';
+    if (found < start.ch) {
+      found = lineText.lastIndexOf("[", at);
+      if (found < start.ch) break;
+      startToken = '['; endToken = ']';
+    }
+
+    tokenType = cm.getTokenAt(CodeMirror.Pos(line, found + 1)).type;
+    if (!/^(comment|string)/.test(tokenType)) { startChar = found; break; }
+    at = found - 1;
+  }
+  if (startChar == null || lineText.lastIndexOf(startToken) > startChar) return;
+  var count = 1, lastLine = cm.lineCount(), end, endCh;
+  outer: for (var i = line + 1; i < lastLine; ++i) {
+    var text = cm.getLine(i), pos = 0;
+    for (;;) {
+      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (cm.getTokenAt(CodeMirror.Pos(i, pos + 1)).type == tokenType) {
+        if (pos == nextOpen) ++count;
+        else if (!--count) { end = i; endCh = pos; break outer; }
+      }
+      ++pos;
+    }
+  }
+  if (end == null || end == line + 1) return;
+  return {from: CodeMirror.Pos(line, startChar + 1),
+          to: CodeMirror.Pos(end, endCh)};
+};

applications/admin/static/codemirror/addon/fold/foldcode.js

@@ -0,0 +1,32 @@
+CodeMirror.newFoldFunction = function(rangeFinder, widget) {
+  if (widget == null) widget = "\u2194";
+  if (typeof widget == "string") {
+    var text = document.createTextNode(widget);
+    widget = document.createElement("span");
+    widget.appendChild(text);
+    widget.className = "CodeMirror-foldmarker";
+  }
+
+  return function(cm, pos) {
+    if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
+    var range = rangeFinder(cm, pos);
+    if (!range) return;
+
+    var present = cm.findMarksAt(range.from), cleared = 0;
+    for (var i = 0; i < present.length; ++i) {
+      if (present[i].__isFold) {
+        ++cleared;
+        present[i].clear();
+      }
+    }
+    if (cleared) return;
+
+    var myWidget = widget.cloneNode(true);
+    CodeMirror.on(myWidget, "mousedown", function() {myRange.clear();});
+    var myRange = cm.markText(range.from, range.to, {
+      replacedWith: myWidget,
+      clearOnEnter: true,
+      __isFold: true
+    });
+  };
+};

applications/admin/static/codemirror/addon/fold/indent-fold.js

@@ -0,0 +1,11 @@
+CodeMirror.indentRangeFinder = function(cm, start) {
+  var tabSize = cm.getOption("tabSize"), firstLine = cm.getLine(start.line);
+  var myIndent = CodeMirror.countColumn(firstLine, null, tabSize);
+  for (var i = start.line + 1, end = cm.lineCount(); i < end; ++i) {
+    var curLine = cm.getLine(i);
+    if (CodeMirror.countColumn(curLine, null, tabSize) < myIndent &&
+        CodeMirror.countColumn(cm.getLine(i-1), null, tabSize) > myIndent)
+      return {from: CodeMirror.Pos(start.line, firstLine.length),
+              to: CodeMirror.Pos(i, curLine.length)};
+  }
+};

applications/admin/static/codemirror/addon/fold/xml-fold.js

@@ -0,0 +1,64 @@
+CodeMirror.tagRangeFinder = (function() {
+  var nameStartChar = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+  var nameChar = nameStartChar + "\-\:\.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+  var xmlTagStart = new RegExp("<(/?)([" + nameStartChar + "][" + nameChar + "]*)", "g");
+
+  return function(cm, start) {
+    var line = start.line, ch = start.ch, lineText = cm.getLine(line);
+
+    function nextLine() {
+      if (line >= cm.lastLine()) return;
+      ch = 0;
+      lineText = cm.getLine(++line);
+      return true;
+    }
+    function toTagEnd() {
+      for (;;) {
+        var gt = lineText.indexOf(">", ch);
+        if (gt == -1) { if (nextLine()) continue; else return; }
+        var lastSlash = lineText.lastIndexOf("/", gt);
+        var selfClose = lastSlash > -1 && /^\s*$/.test(lineText.slice(lastSlash + 1, gt));
+        ch = gt + 1;
+        return selfClose ? "selfClose" : "regular";
+      }
+    }
+    function toNextTag() {
+      for (;;) {
+        xmlTagStart.lastIndex = ch;
+        var found = xmlTagStart.exec(lineText);
+        if (!found) { if (nextLine()) continue; else return; }
+        ch = found.index + found[0].length;
+        return found;
+      }
+    }
+
+    var stack = [], startCh;
+    for (;;) {
+      var openTag = toNextTag(), end;
+      if (!openTag || line != start.line || !(end = toTagEnd())) return;
+      if (!openTag[1] && end != "selfClose") {
+        stack.push(openTag[2]);
+        startCh = ch;
+        break;
+      }
+    }
+
+    for (;;) {
+      var next = toNextTag(), end, tagLine = line, tagCh = ch - (next ? next[0].length : 0);
+      if (!next || !(end = toTagEnd())) return;
+      if (end == "selfClose") continue;
+      if (next[1]) { // closing tag
+        for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == next[2]) {
+          stack.length = i;
+          break;
+        }
+        if (!stack.length) return {
+          from: CodeMirror.Pos(start.line, startCh),
+          to: CodeMirror.Pos(tagLine, tagCh)
+        };
+      } else { // opening tag
+        stack.push(next[2]);
+      }
+    }
+  };
+})();