Incs/codemirror/addon/comment/comment.js

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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var noOptions = {};
  var nonWS = /[^\s\u00a0]/;
  var Pos = CodeMirror.Pos;

  function firstNonWS(str) {
    var found = str.search(nonWS);
    return found == -1 ? 0 : found;
  }

  CodeMirror.commands.toggleComment = function(cm) {
    cm.toggleComment();
  };

  CodeMirror.defineExtension("toggleComment", function(options) {
    if (!options) options = noOptions;
    var cm = this;
    var minLine = Infinity, ranges = this.listSelections(), mode = null;
    for (var i = ranges.length - 1; i >= 0; i--) {
      var from = ranges[i].from(), to = ranges[i].to();
      if (from.line >= minLine) continue;
      if (to.line >= minLine) to = Pos(minLine, 0);
      minLine = from.line;
      if (mode == null) {
        if (cm.uncomment(from, to, options)) mode = "un";
        else { cm.lineComment(from, to, options); mode = "line"; }
      } else if (mode == "un") {
        cm.uncomment(from, to, options);
      } else {
        cm.lineComment(from, to, options);
      }
    }
  });

  // Rough heuristic to try and detect lines that are part of multi-line string
  function probablyInsideString(cm, pos, line) {
    return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line)
  }

  function getMode(cm, pos) {
    var mode = cm.getMode()
    return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos)
  }

  CodeMirror.defineExtension("lineComment", function(from, to, options) {
    if (!options) options = noOptions;
    var self = this, mode = getMode(self, from);
    var firstLine = self.getLine(from.line);