think49/ExtXPathEvaluator.js

## ExtXPathEvaluator.js
// ExtXPathEvaluator.js

function ExtXPathEvaluator () {

  if (!(this instanceof ExtXPathEvaluator)) {
    throw new Error(this + ' is not a object created by constructor');
  }

  return this;
}


(function () {

  this.evaluate = function (domObject, expression /*, contextNode*/) {
    var contextNode;

    contextNode = arguments[2];
    if (!contextNode) {
      contextNode = domObject;
    }

    this.xPathResult = domObject.evaluate(expression, contextNode, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

    return this;
  };


  this.replace = function (property, searchValue, replaceValue) {
    var xPathResult, node, i;

    xPathResult = this.xPathResult;

    for (i = xPathResult.snapshotLength - 1; i > -1; i--) {
      node = xPathResult.snapshotItem(i);
      node[property] = node[property].replace(searchValue, replaceValue);
    }

    return this;
  };

  this.forEach = function (callbackfn /*, thisArg*/) {
    var xPathResult, thisArg, k, len, foo;

    if (typeof callbackfn !== 'function') {
      throw new TypeError(callbackfn + ' is not a function');
    }

    xPathResult = this.xPathResult;

    if (arguments.length < 2) {

      for (k = 0, len = xPathResult.snapshotLength; k < len; k++){
        callbackfn(xPathResult.snapshotItem(k));
      }

    } else {
      thisArg = arguments[1];

      for (k = 0, len = xPathResult.snapshotLength; k < len; k++){
        callbackfn.call(thisArg, xPathResult.snapshotItem(k));
      }

    }

    return this;
  };

}).call(ExtXPathEvaluator.prototype);
	// ExtXPathEvaluator.js

	function ExtXPathEvaluator () {

	if (!(this instanceof ExtXPathEvaluator)) {
	throw new Error(this + ' is not a object created by constructor');
	}

	return this;
	}


	(function () {

	this.evaluate = function (domObject, expression /, contextNode/) {
	var contextNode;

	contextNode = arguments[2];
	if (!contextNode) {
	contextNode = domObject;
	}

	this.xPathResult = domObject.evaluate(expression, contextNode, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

	return this;
	};


	this.replace = function (property, searchValue, replaceValue) {
	var xPathResult, node, i;

	xPathResult = this.xPathResult;

	for (i = xPathResult.snapshotLength - 1; i > -1; i--) {
	node = xPathResult.snapshotItem(i);
	node[property] = node[property].replace(searchValue, replaceValue);
	}

	return this;
	};

	this.forEach = function (callbackfn /, thisArg/) {
	var xPathResult, thisArg, k, len, foo;

	if (typeof callbackfn !== 'function') {
	throw new TypeError(callbackfn + ' is not a function');
	}

	xPathResult = this.xPathResult;

	if (arguments.length < 2) {

	for (k = 0, len = xPathResult.snapshotLength; k < len; k++){
	callbackfn(xPathResult.snapshotItem(k));
	}

	} else {
	thisArg = arguments[1];

	for (k = 0, len = xPathResult.snapshotLength; k < len; k++){
	callbackfn.call(thisArg, xPathResult.snapshotItem(k));
	}

	}

	return this;
	};

	}).call(ExtXPathEvaluator.prototype);