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November 1, 2010 12:05
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ExtXPathEvaluator.js : DOM L3 XPath の XPathEvaluator を拡張してノード操作を簡単にしたJavaScriptライブラリ
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| // 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); |
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下記URLで解説しています。
ExtXPathEvaluator.js
http://vird2002.s8.xrea.com/javascript/ExtXPathEvaluator.html
このライブラリは「DOM L3 XPath」のメソッドを利用しています。
未対応ブラウザでも XPath を利用する出来るようにするためには「JavaScript-XPath」を併用してください。
JavaScript-XPath – CodeRepos::Share – Trac
http://coderepos.org/share/wiki/JavaScript-XPath
OKWave で回答しました。
javascriptで、<body>タグ内のnodeNameが"#te | OKWave
http://okwave.jp/qa/q6283012.html
google翻訳apiで、#TEXTを翻訳する。 | OKWave
http://okwave.jp/qa/q6284674.html