Function findWordAt

static/js/codemirror/codemirror.js:2574–2586

(line, pos)

  }

  function findWordAt(line, pos) {
    var start = pos.ch, end = pos.ch;
    if (line) {
      if (pos.after === false || end == line.length) --start; else ++end;
      var startChar = line.charAt(start);
      var check = isWordChar(startChar) ? isWordChar :
        /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);} :
      function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
      while (start > 0 && check(line.charAt(start - 1))) --start;
      while (end < line.length && check(line.charAt(end))) ++end;
    }
    return {from: Pos(pos.line, start), to: Pos(pos.line, end)};
  }

  function selectLine(cm, line) {
    extendSelection(cm.doc, Pos(line, 0), clipPos(cm.doc, Pos(line + 1, 0)));