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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a> |
| <FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a> |
| <FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a> |
| <FONT color="green">017</FONT> */<a name="line.17"></a> |
| <FONT color="green">018</FONT> /*<a name="line.18"></a> |
| <FONT color="green">019</FONT> * $Id: ExsltBase.java 468639 2006-10-28 06:52:33Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> package org.apache.xalan.lib;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import org.apache.xml.dtm.ref.DTMNodeProxy;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> import org.w3c.dom.Node;<a name="line.25"></a> |
| <FONT color="green">026</FONT> import org.w3c.dom.NodeList;<a name="line.26"></a> |
| <FONT color="green">027</FONT> <a name="line.27"></a> |
| <FONT color="green">028</FONT> /**<a name="line.28"></a> |
| <FONT color="green">029</FONT> * The base class for some EXSLT extension classes.<a name="line.29"></a> |
| <FONT color="green">030</FONT> * It contains common utility methods to be used by the sub-classes.<a name="line.30"></a> |
| <FONT color="green">031</FONT> */<a name="line.31"></a> |
| <FONT color="green">032</FONT> public abstract class ExsltBase<a name="line.32"></a> |
| <FONT color="green">033</FONT> {<a name="line.33"></a> |
| <FONT color="green">034</FONT> /**<a name="line.34"></a> |
| <FONT color="green">035</FONT> * Return the string value of a Node<a name="line.35"></a> |
| <FONT color="green">036</FONT> *<a name="line.36"></a> |
| <FONT color="green">037</FONT> * @param n The Node.<a name="line.37"></a> |
| <FONT color="green">038</FONT> * @return The string value of the Node<a name="line.38"></a> |
| <FONT color="green">039</FONT> */<a name="line.39"></a> |
| <FONT color="green">040</FONT> protected static String toString(Node n)<a name="line.40"></a> |
| <FONT color="green">041</FONT> {<a name="line.41"></a> |
| <FONT color="green">042</FONT> if (n instanceof DTMNodeProxy)<a name="line.42"></a> |
| <FONT color="green">043</FONT> return ((DTMNodeProxy)n).getStringValue();<a name="line.43"></a> |
| <FONT color="green">044</FONT> else<a name="line.44"></a> |
| <FONT color="green">045</FONT> {<a name="line.45"></a> |
| <FONT color="green">046</FONT> String value = n.getNodeValue();<a name="line.46"></a> |
| <FONT color="green">047</FONT> if (value == null)<a name="line.47"></a> |
| <FONT color="green">048</FONT> {<a name="line.48"></a> |
| <FONT color="green">049</FONT> NodeList nodelist = n.getChildNodes();<a name="line.49"></a> |
| <FONT color="green">050</FONT> StringBuffer buf = new StringBuffer();<a name="line.50"></a> |
| <FONT color="green">051</FONT> for (int i = 0; i < nodelist.getLength(); i++)<a name="line.51"></a> |
| <FONT color="green">052</FONT> {<a name="line.52"></a> |
| <FONT color="green">053</FONT> Node childNode = nodelist.item(i);<a name="line.53"></a> |
| <FONT color="green">054</FONT> buf.append(toString(childNode));<a name="line.54"></a> |
| <FONT color="green">055</FONT> }<a name="line.55"></a> |
| <FONT color="green">056</FONT> return buf.toString();<a name="line.56"></a> |
| <FONT color="green">057</FONT> }<a name="line.57"></a> |
| <FONT color="green">058</FONT> else<a name="line.58"></a> |
| <FONT color="green">059</FONT> return value;<a name="line.59"></a> |
| <FONT color="green">060</FONT> }<a name="line.60"></a> |
| <FONT color="green">061</FONT> }<a name="line.61"></a> |
| <FONT color="green">062</FONT> <a name="line.62"></a> |
| <FONT color="green">063</FONT> /**<a name="line.63"></a> |
| <FONT color="green">064</FONT> * Convert the string value of a Node to a number.<a name="line.64"></a> |
| <FONT color="green">065</FONT> * Return NaN if the string is not a valid number.<a name="line.65"></a> |
| <FONT color="green">066</FONT> *<a name="line.66"></a> |
| <FONT color="green">067</FONT> * @param n The Node.<a name="line.67"></a> |
| <FONT color="green">068</FONT> * @return The number value of the Node<a name="line.68"></a> |
| <FONT color="green">069</FONT> */<a name="line.69"></a> |
| <FONT color="green">070</FONT> protected static double toNumber(Node n)<a name="line.70"></a> |
| <FONT color="green">071</FONT> {<a name="line.71"></a> |
| <FONT color="green">072</FONT> double d = 0.0;<a name="line.72"></a> |
| <FONT color="green">073</FONT> String str = toString(n);<a name="line.73"></a> |
| <FONT color="green">074</FONT> try<a name="line.74"></a> |
| <FONT color="green">075</FONT> {<a name="line.75"></a> |
| <FONT color="green">076</FONT> d = Double.valueOf(str).doubleValue();<a name="line.76"></a> |
| <FONT color="green">077</FONT> }<a name="line.77"></a> |
| <FONT color="green">078</FONT> catch (NumberFormatException e)<a name="line.78"></a> |
| <FONT color="green">079</FONT> {<a name="line.79"></a> |
| <FONT color="green">080</FONT> d= Double.NaN; <a name="line.80"></a> |
| <FONT color="green">081</FONT> }<a name="line.81"></a> |
| <FONT color="green">082</FONT> return d;<a name="line.82"></a> |
| <FONT color="green">083</FONT> }<a name="line.83"></a> |
| <FONT color="green">084</FONT> }<a name="line.84"></a> |
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| </PRE> |
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