closure-builder
Version:
Simple Closure, Soy and JavaScript Build system
47 lines (42 loc) • 1.83 kB
JavaScript
// Copyright 2017 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* Utilities intended for refactoring legacy code; allows classifying strings
* into plain text that does not contain HTML and HTML. Please do NOT use in new
* code.
*/
goog.provide('goog.dom.textAssert');
goog.require('goog.asserts');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
/**
* Assert that the string is plain text that does not have HTML, i.e. not
* affected by HTML escaping. Otherwise, this raises an error if assertions are
* enabled. It does NOT sanitize nor make any change to the input string. It
* should only be used when the assertion failure is benign, such as printing
* spurious tags. DO NOT count on this to remove unsafe HTML. It is only meant
* for legacy refactoring. Please do NOT use in new code.
* @param {string} text
* @return {string}
*/
goog.dom.textAssert.assertHtmlFree = function(text) {
if (goog.asserts.ENABLE_ASSERTS) {
var elmt = goog.dom.createElement(goog.dom.TagName.BODY);
elmt.textContent = text;
goog.asserts.assert(
elmt.innerHTML == elmt.textContent,
'String has HTML original: %s, escaped: %s', text, elmt.innerHTML);
}
return text;
};