admin/view/javascript/codemirror/lib/formatting.js

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// ============== Formatting extensions ============================
(function() {
  // Define extensions for a few modes
  CodeMirror.extendMode("css", {
    commentStart: "/*",
    commentEnd: "*/",
    wordWrapChars: [";", "\\{", "\\}"],
    autoFormatLineBreaks: function (text) {
      return text.replace(new RegExp("(;|\\{|\\})([^\r\n])", "g"), "$1\n$2");
    }
  });

  function jsNonBreakableBlocks(text) {
    var nonBreakableRegexes = [/for\s*?\((.*?)\)/,
                               /\"(.*?)(\"|$)/,
                               /\'(.*?)(\'|$)/,
                               /\/\*(.*?)(\*\/|$)/,
                               /\/\/.*/];
    var nonBreakableBlocks = [];
    for (var i = 0; i < nonBreakableRegexes.length; i++) {
      var curPos = 0;
      while (curPos < text.length) {
        var m = text.substr(curPos).match(nonBreakableRegexes[i]);
        if (m != null) {
          nonBreakableBlocks.push({
            start: curPos + m.index,
            end: curPos + m.index + m[0].length
          });
          curPos += m.index + Math.max(1, m[0].length);
        }
        else { // No more matches
          break;
        }
      }
    }
    nonBreakableBlocks.sort(function (a, b) {
      return a.start - b.start;
    });

    return nonBreakableBlocks;
  }

  CodeMirror.extendMode("javascript", {
    commentStart: "/*",
    commentEnd: "*/",
    wordWrapChars: [";", "\\{", "\\}"],

    autoFormatLineBreaks: function (text) {
      var curPos = 0;
      var split = this.jsonMode ? function(str) {
        return str.replace(/([,{])/g, "$1\n").replace(/}/g, "\n}");
      } : function(str) {
        return str.replace(/(;|\{|\})([^\r\n;])/g, "$1\n$2");
      };
      var nonBreakableBlocks = jsNonBreakableBlocks(text), res = "";
      if (nonBreakableBlocks != null) {
        for (var i = 0; i < nonBreakableBlocks.length; i++) {
          if (nonBreakableBlocks[i].start > curPos) { // Break lines till the block
            res += split(text.substring(curPos, nonBreakableBlocks[i].start));
            curPos = nonBreakableBlocks[i].start;