code: function( characterWalker, rangeLength ) {
  					this._ = {
  						walker: characterWalker,
  						cursors: [],
  						rangeLength: rangeLength,
  						highlightRange: null,
  						isMatched: 0
  					};
  				}
docs: A range of cursors which represent a trunk of characters which try to
  match, it has the same length as the pattern  string.
  
  **Note:** This class isn't accessible from global scope.
  
  @private
  @class CKEDITOR.plugins.find.characterRange
  @constructor Creates a characterRange class instance.