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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: Compiler.java 468655 2006-10-28 07:12:06Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> package org.apache.xpath.compiler;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import javax.xml.transform.ErrorListener;<a name="line.23"></a> |
| <FONT color="green">024</FONT> import javax.xml.transform.SourceLocator;<a name="line.24"></a> |
| <FONT color="green">025</FONT> import javax.xml.transform.TransformerException;<a name="line.25"></a> |
| <FONT color="green">026</FONT> <a name="line.26"></a> |
| <FONT color="green">027</FONT> import org.apache.xalan.res.XSLMessages;<a name="line.27"></a> |
| <FONT color="green">028</FONT> import org.apache.xml.dtm.Axis;<a name="line.28"></a> |
| <FONT color="green">029</FONT> import org.apache.xml.dtm.DTMFilter;<a name="line.29"></a> |
| <FONT color="green">030</FONT> import org.apache.xml.dtm.DTMIterator;<a name="line.30"></a> |
| <FONT color="green">031</FONT> import org.apache.xml.utils.PrefixResolver;<a name="line.31"></a> |
| <FONT color="green">032</FONT> import org.apache.xml.utils.QName;<a name="line.32"></a> |
| <FONT color="green">033</FONT> import org.apache.xml.utils.SAXSourceLocator;<a name="line.33"></a> |
| <FONT color="green">034</FONT> import org.apache.xpath.Expression;<a name="line.34"></a> |
| <FONT color="green">035</FONT> import org.apache.xpath.axes.UnionPathIterator;<a name="line.35"></a> |
| <FONT color="green">036</FONT> import org.apache.xpath.axes.WalkerFactory;<a name="line.36"></a> |
| <FONT color="green">037</FONT> import org.apache.xpath.functions.FuncExtFunction;<a name="line.37"></a> |
| <FONT color="green">038</FONT> import org.apache.xpath.functions.FuncExtFunctionAvailable;<a name="line.38"></a> |
| <FONT color="green">039</FONT> import org.apache.xpath.functions.Function;<a name="line.39"></a> |
| <FONT color="green">040</FONT> import org.apache.xpath.functions.WrongNumberArgsException;<a name="line.40"></a> |
| <FONT color="green">041</FONT> import org.apache.xpath.objects.XNumber;<a name="line.41"></a> |
| <FONT color="green">042</FONT> import org.apache.xpath.objects.XString;<a name="line.42"></a> |
| <FONT color="green">043</FONT> import org.apache.xpath.operations.And;<a name="line.43"></a> |
| <FONT color="green">044</FONT> import org.apache.xpath.operations.Div;<a name="line.44"></a> |
| <FONT color="green">045</FONT> import org.apache.xpath.operations.Equals;<a name="line.45"></a> |
| <FONT color="green">046</FONT> import org.apache.xpath.operations.Gt;<a name="line.46"></a> |
| <FONT color="green">047</FONT> import org.apache.xpath.operations.Gte;<a name="line.47"></a> |
| <FONT color="green">048</FONT> import org.apache.xpath.operations.Lt;<a name="line.48"></a> |
| <FONT color="green">049</FONT> import org.apache.xpath.operations.Lte;<a name="line.49"></a> |
| <FONT color="green">050</FONT> import org.apache.xpath.operations.Minus;<a name="line.50"></a> |
| <FONT color="green">051</FONT> import org.apache.xpath.operations.Mod;<a name="line.51"></a> |
| <FONT color="green">052</FONT> import org.apache.xpath.operations.Mult;<a name="line.52"></a> |
| <FONT color="green">053</FONT> import org.apache.xpath.operations.Neg;<a name="line.53"></a> |
| <FONT color="green">054</FONT> import org.apache.xpath.operations.NotEquals;<a name="line.54"></a> |
| <FONT color="green">055</FONT> import org.apache.xpath.operations.Operation;<a name="line.55"></a> |
| <FONT color="green">056</FONT> import org.apache.xpath.operations.Or;<a name="line.56"></a> |
| <FONT color="green">057</FONT> import org.apache.xpath.operations.Plus;<a name="line.57"></a> |
| <FONT color="green">058</FONT> import org.apache.xpath.operations.UnaryOperation;<a name="line.58"></a> |
| <FONT color="green">059</FONT> import org.apache.xpath.operations.Variable;<a name="line.59"></a> |
| <FONT color="green">060</FONT> import org.apache.xpath.patterns.FunctionPattern;<a name="line.60"></a> |
| <FONT color="green">061</FONT> import org.apache.xpath.patterns.NodeTest;<a name="line.61"></a> |
| <FONT color="green">062</FONT> import org.apache.xpath.patterns.StepPattern;<a name="line.62"></a> |
| <FONT color="green">063</FONT> import org.apache.xpath.patterns.UnionPattern;<a name="line.63"></a> |
| <FONT color="green">064</FONT> import org.apache.xpath.res.XPATHErrorResources;<a name="line.64"></a> |
| <FONT color="green">065</FONT> <a name="line.65"></a> |
| <FONT color="green">066</FONT> /**<a name="line.66"></a> |
| <FONT color="green">067</FONT> * An instance of this class compiles an XPath string expression into <a name="line.67"></a> |
| <FONT color="green">068</FONT> * a Expression object. This class compiles the string into a sequence <a name="line.68"></a> |
| <FONT color="green">069</FONT> * of operation codes (op map) and then builds from that into an Expression <a name="line.69"></a> |
| <FONT color="green">070</FONT> * tree.<a name="line.70"></a> |
| <FONT color="green">071</FONT> * @xsl.usage advanced<a name="line.71"></a> |
| <FONT color="green">072</FONT> */<a name="line.72"></a> |
| <FONT color="green">073</FONT> public class Compiler extends OpMap<a name="line.73"></a> |
| <FONT color="green">074</FONT> {<a name="line.74"></a> |
| <FONT color="green">075</FONT> <a name="line.75"></a> |
| <FONT color="green">076</FONT> /**<a name="line.76"></a> |
| <FONT color="green">077</FONT> * Construct a Compiler object with a specific ErrorListener and <a name="line.77"></a> |
| <FONT color="green">078</FONT> * SourceLocator where the expression is located.<a name="line.78"></a> |
| <FONT color="green">079</FONT> *<a name="line.79"></a> |
| <FONT color="green">080</FONT> * @param errorHandler Error listener where messages will be sent, or null <a name="line.80"></a> |
| <FONT color="green">081</FONT> * if messages should be sent to System err.<a name="line.81"></a> |
| <FONT color="green">082</FONT> * @param locator The location object where the expression lives, which <a name="line.82"></a> |
| <FONT color="green">083</FONT> * may be null, but which, if not null, must be valid over <a name="line.83"></a> |
| <FONT color="green">084</FONT> * the long haul, in other words, it will not be cloned.<a name="line.84"></a> |
| <FONT color="green">085</FONT> * @param fTable The FunctionTable object where the xpath build-in <a name="line.85"></a> |
| <FONT color="green">086</FONT> * functions are stored.<a name="line.86"></a> |
| <FONT color="green">087</FONT> */<a name="line.87"></a> |
| <FONT color="green">088</FONT> public Compiler(ErrorListener errorHandler, SourceLocator locator, <a name="line.88"></a> |
| <FONT color="green">089</FONT> FunctionTable fTable)<a name="line.89"></a> |
| <FONT color="green">090</FONT> {<a name="line.90"></a> |
| <FONT color="green">091</FONT> m_errorHandler = errorHandler;<a name="line.91"></a> |
| <FONT color="green">092</FONT> m_locator = locator;<a name="line.92"></a> |
| <FONT color="green">093</FONT> m_functionTable = fTable;<a name="line.93"></a> |
| <FONT color="green">094</FONT> }<a name="line.94"></a> |
| <FONT color="green">095</FONT> <a name="line.95"></a> |
| <FONT color="green">096</FONT> /**<a name="line.96"></a> |
| <FONT color="green">097</FONT> * Construct a Compiler instance that has a null error listener and a <a name="line.97"></a> |
| <FONT color="green">098</FONT> * null source locator.<a name="line.98"></a> |
| <FONT color="green">099</FONT> */<a name="line.99"></a> |
| <FONT color="green">100</FONT> public Compiler()<a name="line.100"></a> |
| <FONT color="green">101</FONT> {<a name="line.101"></a> |
| <FONT color="green">102</FONT> m_errorHandler = null;<a name="line.102"></a> |
| <FONT color="green">103</FONT> m_locator = null;<a name="line.103"></a> |
| <FONT color="green">104</FONT> }<a name="line.104"></a> |
| <FONT color="green">105</FONT> <a name="line.105"></a> |
| <FONT color="green">106</FONT> /**<a name="line.106"></a> |
| <FONT color="green">107</FONT> * Execute the XPath object from a given opcode position.<a name="line.107"></a> |
| <FONT color="green">108</FONT> * @param opPos The current position in the xpath.m_opMap array.<a name="line.108"></a> |
| <FONT color="green">109</FONT> * @return The result of the XPath.<a name="line.109"></a> |
| <FONT color="green">110</FONT> *<a name="line.110"></a> |
| <FONT color="green">111</FONT> * @throws TransformerException if there is a syntax or other error.<a name="line.111"></a> |
| <FONT color="green">112</FONT> * @xsl.usage advanced<a name="line.112"></a> |
| <FONT color="green">113</FONT> */<a name="line.113"></a> |
| <FONT color="green">114</FONT> public Expression compile(int opPos) throws TransformerException<a name="line.114"></a> |
| <FONT color="green">115</FONT> {<a name="line.115"></a> |
| <FONT color="green">116</FONT> <a name="line.116"></a> |
| <FONT color="green">117</FONT> int op = getOp(opPos);<a name="line.117"></a> |
| <FONT color="green">118</FONT> <a name="line.118"></a> |
| <FONT color="green">119</FONT> Expression expr = null;<a name="line.119"></a> |
| <FONT color="green">120</FONT> // System.out.println(getPatternString()+"op: "+op);<a name="line.120"></a> |
| <FONT color="green">121</FONT> switch (op)<a name="line.121"></a> |
| <FONT color="green">122</FONT> {<a name="line.122"></a> |
| <FONT color="green">123</FONT> case OpCodes.OP_XPATH :<a name="line.123"></a> |
| <FONT color="green">124</FONT> expr = compile(opPos + 2); break;<a name="line.124"></a> |
| <FONT color="green">125</FONT> case OpCodes.OP_OR :<a name="line.125"></a> |
| <FONT color="green">126</FONT> expr = or(opPos); break;<a name="line.126"></a> |
| <FONT color="green">127</FONT> case OpCodes.OP_AND :<a name="line.127"></a> |
| <FONT color="green">128</FONT> expr = and(opPos); break;<a name="line.128"></a> |
| <FONT color="green">129</FONT> case OpCodes.OP_NOTEQUALS :<a name="line.129"></a> |
| <FONT color="green">130</FONT> expr = notequals(opPos); break;<a name="line.130"></a> |
| <FONT color="green">131</FONT> case OpCodes.OP_EQUALS :<a name="line.131"></a> |
| <FONT color="green">132</FONT> expr = equals(opPos); break;<a name="line.132"></a> |
| <FONT color="green">133</FONT> case OpCodes.OP_LTE :<a name="line.133"></a> |
| <FONT color="green">134</FONT> expr = lte(opPos); break;<a name="line.134"></a> |
| <FONT color="green">135</FONT> case OpCodes.OP_LT :<a name="line.135"></a> |
| <FONT color="green">136</FONT> expr = lt(opPos); break;<a name="line.136"></a> |
| <FONT color="green">137</FONT> case OpCodes.OP_GTE :<a name="line.137"></a> |
| <FONT color="green">138</FONT> expr = gte(opPos); break;<a name="line.138"></a> |
| <FONT color="green">139</FONT> case OpCodes.OP_GT :<a name="line.139"></a> |
| <FONT color="green">140</FONT> expr = gt(opPos); break;<a name="line.140"></a> |
| <FONT color="green">141</FONT> case OpCodes.OP_PLUS :<a name="line.141"></a> |
| <FONT color="green">142</FONT> expr = plus(opPos); break;<a name="line.142"></a> |
| <FONT color="green">143</FONT> case OpCodes.OP_MINUS :<a name="line.143"></a> |
| <FONT color="green">144</FONT> expr = minus(opPos); break;<a name="line.144"></a> |
| <FONT color="green">145</FONT> case OpCodes.OP_MULT :<a name="line.145"></a> |
| <FONT color="green">146</FONT> expr = mult(opPos); break;<a name="line.146"></a> |
| <FONT color="green">147</FONT> case OpCodes.OP_DIV :<a name="line.147"></a> |
| <FONT color="green">148</FONT> expr = div(opPos); break;<a name="line.148"></a> |
| <FONT color="green">149</FONT> case OpCodes.OP_MOD :<a name="line.149"></a> |
| <FONT color="green">150</FONT> expr = mod(opPos); break;<a name="line.150"></a> |
| <FONT color="green">151</FONT> // case OpCodes.OP_QUO :<a name="line.151"></a> |
| <FONT color="green">152</FONT> // expr = quo(opPos); break;<a name="line.152"></a> |
| <FONT color="green">153</FONT> case OpCodes.OP_NEG :<a name="line.153"></a> |
| <FONT color="green">154</FONT> expr = neg(opPos); break;<a name="line.154"></a> |
| <FONT color="green">155</FONT> case OpCodes.OP_STRING :<a name="line.155"></a> |
| <FONT color="green">156</FONT> expr = string(opPos); break;<a name="line.156"></a> |
| <FONT color="green">157</FONT> case OpCodes.OP_BOOL :<a name="line.157"></a> |
| <FONT color="green">158</FONT> expr = bool(opPos); break;<a name="line.158"></a> |
| <FONT color="green">159</FONT> case OpCodes.OP_NUMBER :<a name="line.159"></a> |
| <FONT color="green">160</FONT> expr = number(opPos); break;<a name="line.160"></a> |
| <FONT color="green">161</FONT> case OpCodes.OP_UNION :<a name="line.161"></a> |
| <FONT color="green">162</FONT> expr = union(opPos); break;<a name="line.162"></a> |
| <FONT color="green">163</FONT> case OpCodes.OP_LITERAL :<a name="line.163"></a> |
| <FONT color="green">164</FONT> expr = literal(opPos); break;<a name="line.164"></a> |
| <FONT color="green">165</FONT> case OpCodes.OP_VARIABLE :<a name="line.165"></a> |
| <FONT color="green">166</FONT> expr = variable(opPos); break;<a name="line.166"></a> |
| <FONT color="green">167</FONT> case OpCodes.OP_GROUP :<a name="line.167"></a> |
| <FONT color="green">168</FONT> expr = group(opPos); break;<a name="line.168"></a> |
| <FONT color="green">169</FONT> case OpCodes.OP_NUMBERLIT :<a name="line.169"></a> |
| <FONT color="green">170</FONT> expr = numberlit(opPos); break;<a name="line.170"></a> |
| <FONT color="green">171</FONT> case OpCodes.OP_ARGUMENT :<a name="line.171"></a> |
| <FONT color="green">172</FONT> expr = arg(opPos); break;<a name="line.172"></a> |
| <FONT color="green">173</FONT> case OpCodes.OP_EXTFUNCTION :<a name="line.173"></a> |
| <FONT color="green">174</FONT> expr = compileExtension(opPos); break;<a name="line.174"></a> |
| <FONT color="green">175</FONT> case OpCodes.OP_FUNCTION :<a name="line.175"></a> |
| <FONT color="green">176</FONT> expr = compileFunction(opPos); break;<a name="line.176"></a> |
| <FONT color="green">177</FONT> case OpCodes.OP_LOCATIONPATH :<a name="line.177"></a> |
| <FONT color="green">178</FONT> expr = locationPath(opPos); break;<a name="line.178"></a> |
| <FONT color="green">179</FONT> case OpCodes.OP_PREDICATE :<a name="line.179"></a> |
| <FONT color="green">180</FONT> expr = null; break; // should never hit this here.<a name="line.180"></a> |
| <FONT color="green">181</FONT> case OpCodes.OP_MATCHPATTERN :<a name="line.181"></a> |
| <FONT color="green">182</FONT> expr = matchPattern(opPos + 2); break;<a name="line.182"></a> |
| <FONT color="green">183</FONT> case OpCodes.OP_LOCATIONPATHPATTERN :<a name="line.183"></a> |
| <FONT color="green">184</FONT> expr = locationPathPattern(opPos); break;<a name="line.184"></a> |
| <FONT color="green">185</FONT> case OpCodes.OP_QUO:<a name="line.185"></a> |
| <FONT color="green">186</FONT> error(XPATHErrorResources.ER_UNKNOWN_OPCODE,<a name="line.186"></a> |
| <FONT color="green">187</FONT> new Object[]{ "quo" }); //"ERROR! Unknown op code: "+m_opMap[opPos]);<a name="line.187"></a> |
| <FONT color="green">188</FONT> break;<a name="line.188"></a> |
| <FONT color="green">189</FONT> default :<a name="line.189"></a> |
| <FONT color="green">190</FONT> error(XPATHErrorResources.ER_UNKNOWN_OPCODE,<a name="line.190"></a> |
| <FONT color="green">191</FONT> new Object[]{ Integer.toString(getOp(opPos)) }); //"ERROR! Unknown op code: "+m_opMap[opPos]);<a name="line.191"></a> |
| <FONT color="green">192</FONT> }<a name="line.192"></a> |
| <FONT color="green">193</FONT> // if(null != expr)<a name="line.193"></a> |
| <FONT color="green">194</FONT> // expr.setSourceLocator(m_locator);<a name="line.194"></a> |
| <FONT color="green">195</FONT> <a name="line.195"></a> |
| <FONT color="green">196</FONT> return expr;<a name="line.196"></a> |
| <FONT color="green">197</FONT> }<a name="line.197"></a> |
| <FONT color="green">198</FONT> <a name="line.198"></a> |
| <FONT color="green">199</FONT> /**<a name="line.199"></a> |
| <FONT color="green">200</FONT> * Bottle-neck compilation of an operation with left and right operands.<a name="line.200"></a> |
| <FONT color="green">201</FONT> *<a name="line.201"></a> |
| <FONT color="green">202</FONT> * @param operation non-null reference to parent operation.<a name="line.202"></a> |
| <FONT color="green">203</FONT> * @param opPos The op map position of the parent operation.<a name="line.203"></a> |
| <FONT color="green">204</FONT> *<a name="line.204"></a> |
| <FONT color="green">205</FONT> * @return reference to {@link org.apache.xpath.operations.Operation} instance.<a name="line.205"></a> |
| <FONT color="green">206</FONT> *<a name="line.206"></a> |
| <FONT color="green">207</FONT> * @throws TransformerException if there is a syntax or other error.<a name="line.207"></a> |
| <FONT color="green">208</FONT> */<a name="line.208"></a> |
| <FONT color="green">209</FONT> private Expression compileOperation(Operation operation, int opPos)<a name="line.209"></a> |
| <FONT color="green">210</FONT> throws TransformerException<a name="line.210"></a> |
| <FONT color="green">211</FONT> {<a name="line.211"></a> |
| <FONT color="green">212</FONT> <a name="line.212"></a> |
| <FONT color="green">213</FONT> int leftPos = getFirstChildPos(opPos);<a name="line.213"></a> |
| <FONT color="green">214</FONT> int rightPos = getNextOpPos(leftPos);<a name="line.214"></a> |
| <FONT color="green">215</FONT> <a name="line.215"></a> |
| <FONT color="green">216</FONT> operation.setLeftRight(compile(leftPos), compile(rightPos));<a name="line.216"></a> |
| <FONT color="green">217</FONT> <a name="line.217"></a> |
| <FONT color="green">218</FONT> return operation;<a name="line.218"></a> |
| <FONT color="green">219</FONT> }<a name="line.219"></a> |
| <FONT color="green">220</FONT> <a name="line.220"></a> |
| <FONT color="green">221</FONT> /**<a name="line.221"></a> |
| <FONT color="green">222</FONT> * Bottle-neck compilation of a unary operation.<a name="line.222"></a> |
| <FONT color="green">223</FONT> *<a name="line.223"></a> |
| <FONT color="green">224</FONT> * @param unary The parent unary operation.<a name="line.224"></a> |
| <FONT color="green">225</FONT> * @param opPos The position in the op map of the parent operation.<a name="line.225"></a> |
| <FONT color="green">226</FONT> *<a name="line.226"></a> |
| <FONT color="green">227</FONT> * @return The unary argument.<a name="line.227"></a> |
| <FONT color="green">228</FONT> *<a name="line.228"></a> |
| <FONT color="green">229</FONT> * @throws TransformerException if syntax or other error occurs.<a name="line.229"></a> |
| <FONT color="green">230</FONT> */<a name="line.230"></a> |
| <FONT color="green">231</FONT> private Expression compileUnary(UnaryOperation unary, int opPos)<a name="line.231"></a> |
| <FONT color="green">232</FONT> throws TransformerException<a name="line.232"></a> |
| <FONT color="green">233</FONT> {<a name="line.233"></a> |
| <FONT color="green">234</FONT> <a name="line.234"></a> |
| <FONT color="green">235</FONT> int rightPos = getFirstChildPos(opPos);<a name="line.235"></a> |
| <FONT color="green">236</FONT> <a name="line.236"></a> |
| <FONT color="green">237</FONT> unary.setRight(compile(rightPos));<a name="line.237"></a> |
| <FONT color="green">238</FONT> <a name="line.238"></a> |
| <FONT color="green">239</FONT> return unary;<a name="line.239"></a> |
| <FONT color="green">240</FONT> }<a name="line.240"></a> |
| <FONT color="green">241</FONT> <a name="line.241"></a> |
| <FONT color="green">242</FONT> /**<a name="line.242"></a> |
| <FONT color="green">243</FONT> * Compile an 'or' operation.<a name="line.243"></a> |
| <FONT color="green">244</FONT> * <a name="line.244"></a> |
| <FONT color="green">245</FONT> * @param opPos The current position in the m_opMap array.<a name="line.245"></a> |
| <FONT color="green">246</FONT> *<a name="line.246"></a> |
| <FONT color="green">247</FONT> * @return reference to {@link org.apache.xpath.operations.Or} instance.<a name="line.247"></a> |
| <FONT color="green">248</FONT> *<a name="line.248"></a> |
| <FONT color="green">249</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.249"></a> |
| <FONT color="green">250</FONT> */<a name="line.250"></a> |
| <FONT color="green">251</FONT> protected Expression or(int opPos) throws TransformerException<a name="line.251"></a> |
| <FONT color="green">252</FONT> {<a name="line.252"></a> |
| <FONT color="green">253</FONT> return compileOperation(new Or(), opPos);<a name="line.253"></a> |
| <FONT color="green">254</FONT> }<a name="line.254"></a> |
| <FONT color="green">255</FONT> <a name="line.255"></a> |
| <FONT color="green">256</FONT> /**<a name="line.256"></a> |
| <FONT color="green">257</FONT> * Compile an 'and' operation.<a name="line.257"></a> |
| <FONT color="green">258</FONT> * <a name="line.258"></a> |
| <FONT color="green">259</FONT> * @param opPos The current position in the m_opMap array.<a name="line.259"></a> |
| <FONT color="green">260</FONT> *<a name="line.260"></a> |
| <FONT color="green">261</FONT> * @return reference to {@link org.apache.xpath.operations.And} instance.<a name="line.261"></a> |
| <FONT color="green">262</FONT> *<a name="line.262"></a> |
| <FONT color="green">263</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.263"></a> |
| <FONT color="green">264</FONT> */<a name="line.264"></a> |
| <FONT color="green">265</FONT> protected Expression and(int opPos) throws TransformerException<a name="line.265"></a> |
| <FONT color="green">266</FONT> {<a name="line.266"></a> |
| <FONT color="green">267</FONT> return compileOperation(new And(), opPos);<a name="line.267"></a> |
| <FONT color="green">268</FONT> }<a name="line.268"></a> |
| <FONT color="green">269</FONT> <a name="line.269"></a> |
| <FONT color="green">270</FONT> /**<a name="line.270"></a> |
| <FONT color="green">271</FONT> * Compile a '!=' operation.<a name="line.271"></a> |
| <FONT color="green">272</FONT> * <a name="line.272"></a> |
| <FONT color="green">273</FONT> * @param opPos The current position in the m_opMap array.<a name="line.273"></a> |
| <FONT color="green">274</FONT> *<a name="line.274"></a> |
| <FONT color="green">275</FONT> * @return reference to {@link org.apache.xpath.operations.NotEquals} instance.<a name="line.275"></a> |
| <FONT color="green">276</FONT> *<a name="line.276"></a> |
| <FONT color="green">277</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.277"></a> |
| <FONT color="green">278</FONT> */<a name="line.278"></a> |
| <FONT color="green">279</FONT> protected Expression notequals(int opPos) throws TransformerException<a name="line.279"></a> |
| <FONT color="green">280</FONT> {<a name="line.280"></a> |
| <FONT color="green">281</FONT> return compileOperation(new NotEquals(), opPos);<a name="line.281"></a> |
| <FONT color="green">282</FONT> }<a name="line.282"></a> |
| <FONT color="green">283</FONT> <a name="line.283"></a> |
| <FONT color="green">284</FONT> /**<a name="line.284"></a> |
| <FONT color="green">285</FONT> * Compile a '=' operation.<a name="line.285"></a> |
| <FONT color="green">286</FONT> * <a name="line.286"></a> |
| <FONT color="green">287</FONT> * @param opPos The current position in the m_opMap array.<a name="line.287"></a> |
| <FONT color="green">288</FONT> *<a name="line.288"></a> |
| <FONT color="green">289</FONT> * @return reference to {@link org.apache.xpath.operations.Equals} instance.<a name="line.289"></a> |
| <FONT color="green">290</FONT> *<a name="line.290"></a> |
| <FONT color="green">291</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.291"></a> |
| <FONT color="green">292</FONT> */<a name="line.292"></a> |
| <FONT color="green">293</FONT> protected Expression equals(int opPos) throws TransformerException<a name="line.293"></a> |
| <FONT color="green">294</FONT> {<a name="line.294"></a> |
| <FONT color="green">295</FONT> return compileOperation(new Equals(), opPos);<a name="line.295"></a> |
| <FONT color="green">296</FONT> }<a name="line.296"></a> |
| <FONT color="green">297</FONT> <a name="line.297"></a> |
| <FONT color="green">298</FONT> /**<a name="line.298"></a> |
| <FONT color="green">299</FONT> * Compile a '<=' operation.<a name="line.299"></a> |
| <FONT color="green">300</FONT> * <a name="line.300"></a> |
| <FONT color="green">301</FONT> * @param opPos The current position in the m_opMap array.<a name="line.301"></a> |
| <FONT color="green">302</FONT> *<a name="line.302"></a> |
| <FONT color="green">303</FONT> * @return reference to {@link org.apache.xpath.operations.Lte} instance.<a name="line.303"></a> |
| <FONT color="green">304</FONT> *<a name="line.304"></a> |
| <FONT color="green">305</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.305"></a> |
| <FONT color="green">306</FONT> */<a name="line.306"></a> |
| <FONT color="green">307</FONT> protected Expression lte(int opPos) throws TransformerException<a name="line.307"></a> |
| <FONT color="green">308</FONT> {<a name="line.308"></a> |
| <FONT color="green">309</FONT> return compileOperation(new Lte(), opPos);<a name="line.309"></a> |
| <FONT color="green">310</FONT> }<a name="line.310"></a> |
| <FONT color="green">311</FONT> <a name="line.311"></a> |
| <FONT color="green">312</FONT> /**<a name="line.312"></a> |
| <FONT color="green">313</FONT> * Compile a '<' operation.<a name="line.313"></a> |
| <FONT color="green">314</FONT> * <a name="line.314"></a> |
| <FONT color="green">315</FONT> * @param opPos The current position in the m_opMap array.<a name="line.315"></a> |
| <FONT color="green">316</FONT> *<a name="line.316"></a> |
| <FONT color="green">317</FONT> * @return reference to {@link org.apache.xpath.operations.Lt} instance.<a name="line.317"></a> |
| <FONT color="green">318</FONT> *<a name="line.318"></a> |
| <FONT color="green">319</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.319"></a> |
| <FONT color="green">320</FONT> */<a name="line.320"></a> |
| <FONT color="green">321</FONT> protected Expression lt(int opPos) throws TransformerException<a name="line.321"></a> |
| <FONT color="green">322</FONT> {<a name="line.322"></a> |
| <FONT color="green">323</FONT> return compileOperation(new Lt(), opPos);<a name="line.323"></a> |
| <FONT color="green">324</FONT> }<a name="line.324"></a> |
| <FONT color="green">325</FONT> <a name="line.325"></a> |
| <FONT color="green">326</FONT> /**<a name="line.326"></a> |
| <FONT color="green">327</FONT> * Compile a '>=' operation.<a name="line.327"></a> |
| <FONT color="green">328</FONT> * <a name="line.328"></a> |
| <FONT color="green">329</FONT> * @param opPos The current position in the m_opMap array.<a name="line.329"></a> |
| <FONT color="green">330</FONT> *<a name="line.330"></a> |
| <FONT color="green">331</FONT> * @return reference to {@link org.apache.xpath.operations.Gte} instance.<a name="line.331"></a> |
| <FONT color="green">332</FONT> *<a name="line.332"></a> |
| <FONT color="green">333</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.333"></a> |
| <FONT color="green">334</FONT> */<a name="line.334"></a> |
| <FONT color="green">335</FONT> protected Expression gte(int opPos) throws TransformerException<a name="line.335"></a> |
| <FONT color="green">336</FONT> {<a name="line.336"></a> |
| <FONT color="green">337</FONT> return compileOperation(new Gte(), opPos);<a name="line.337"></a> |
| <FONT color="green">338</FONT> }<a name="line.338"></a> |
| <FONT color="green">339</FONT> <a name="line.339"></a> |
| <FONT color="green">340</FONT> /**<a name="line.340"></a> |
| <FONT color="green">341</FONT> * Compile a '>' operation.<a name="line.341"></a> |
| <FONT color="green">342</FONT> * <a name="line.342"></a> |
| <FONT color="green">343</FONT> * @param opPos The current position in the m_opMap array.<a name="line.343"></a> |
| <FONT color="green">344</FONT> *<a name="line.344"></a> |
| <FONT color="green">345</FONT> * @return reference to {@link org.apache.xpath.operations.Gt} instance.<a name="line.345"></a> |
| <FONT color="green">346</FONT> *<a name="line.346"></a> |
| <FONT color="green">347</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.347"></a> |
| <FONT color="green">348</FONT> */<a name="line.348"></a> |
| <FONT color="green">349</FONT> protected Expression gt(int opPos) throws TransformerException<a name="line.349"></a> |
| <FONT color="green">350</FONT> {<a name="line.350"></a> |
| <FONT color="green">351</FONT> return compileOperation(new Gt(), opPos);<a name="line.351"></a> |
| <FONT color="green">352</FONT> }<a name="line.352"></a> |
| <FONT color="green">353</FONT> <a name="line.353"></a> |
| <FONT color="green">354</FONT> /**<a name="line.354"></a> |
| <FONT color="green">355</FONT> * Compile a '+' operation.<a name="line.355"></a> |
| <FONT color="green">356</FONT> * <a name="line.356"></a> |
| <FONT color="green">357</FONT> * @param opPos The current position in the m_opMap array.<a name="line.357"></a> |
| <FONT color="green">358</FONT> *<a name="line.358"></a> |
| <FONT color="green">359</FONT> * @return reference to {@link org.apache.xpath.operations.Plus} instance.<a name="line.359"></a> |
| <FONT color="green">360</FONT> *<a name="line.360"></a> |
| <FONT color="green">361</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.361"></a> |
| <FONT color="green">362</FONT> */<a name="line.362"></a> |
| <FONT color="green">363</FONT> protected Expression plus(int opPos) throws TransformerException<a name="line.363"></a> |
| <FONT color="green">364</FONT> {<a name="line.364"></a> |
| <FONT color="green">365</FONT> return compileOperation(new Plus(), opPos);<a name="line.365"></a> |
| <FONT color="green">366</FONT> }<a name="line.366"></a> |
| <FONT color="green">367</FONT> <a name="line.367"></a> |
| <FONT color="green">368</FONT> /**<a name="line.368"></a> |
| <FONT color="green">369</FONT> * Compile a '-' operation.<a name="line.369"></a> |
| <FONT color="green">370</FONT> * <a name="line.370"></a> |
| <FONT color="green">371</FONT> * @param opPos The current position in the m_opMap array.<a name="line.371"></a> |
| <FONT color="green">372</FONT> *<a name="line.372"></a> |
| <FONT color="green">373</FONT> * @return reference to {@link org.apache.xpath.operations.Minus} instance.<a name="line.373"></a> |
| <FONT color="green">374</FONT> *<a name="line.374"></a> |
| <FONT color="green">375</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.375"></a> |
| <FONT color="green">376</FONT> */<a name="line.376"></a> |
| <FONT color="green">377</FONT> protected Expression minus(int opPos) throws TransformerException<a name="line.377"></a> |
| <FONT color="green">378</FONT> {<a name="line.378"></a> |
| <FONT color="green">379</FONT> return compileOperation(new Minus(), opPos);<a name="line.379"></a> |
| <FONT color="green">380</FONT> }<a name="line.380"></a> |
| <FONT color="green">381</FONT> <a name="line.381"></a> |
| <FONT color="green">382</FONT> /**<a name="line.382"></a> |
| <FONT color="green">383</FONT> * Compile a '*' operation.<a name="line.383"></a> |
| <FONT color="green">384</FONT> * <a name="line.384"></a> |
| <FONT color="green">385</FONT> * @param opPos The current position in the m_opMap array.<a name="line.385"></a> |
| <FONT color="green">386</FONT> *<a name="line.386"></a> |
| <FONT color="green">387</FONT> * @return reference to {@link org.apache.xpath.operations.Mult} instance.<a name="line.387"></a> |
| <FONT color="green">388</FONT> *<a name="line.388"></a> |
| <FONT color="green">389</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.389"></a> |
| <FONT color="green">390</FONT> */<a name="line.390"></a> |
| <FONT color="green">391</FONT> protected Expression mult(int opPos) throws TransformerException<a name="line.391"></a> |
| <FONT color="green">392</FONT> {<a name="line.392"></a> |
| <FONT color="green">393</FONT> return compileOperation(new Mult(), opPos);<a name="line.393"></a> |
| <FONT color="green">394</FONT> }<a name="line.394"></a> |
| <FONT color="green">395</FONT> <a name="line.395"></a> |
| <FONT color="green">396</FONT> /**<a name="line.396"></a> |
| <FONT color="green">397</FONT> * Compile a 'div' operation.<a name="line.397"></a> |
| <FONT color="green">398</FONT> * <a name="line.398"></a> |
| <FONT color="green">399</FONT> * @param opPos The current position in the m_opMap array.<a name="line.399"></a> |
| <FONT color="green">400</FONT> *<a name="line.400"></a> |
| <FONT color="green">401</FONT> * @return reference to {@link org.apache.xpath.operations.Div} instance.<a name="line.401"></a> |
| <FONT color="green">402</FONT> *<a name="line.402"></a> |
| <FONT color="green">403</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.403"></a> |
| <FONT color="green">404</FONT> */<a name="line.404"></a> |
| <FONT color="green">405</FONT> protected Expression div(int opPos) throws TransformerException<a name="line.405"></a> |
| <FONT color="green">406</FONT> {<a name="line.406"></a> |
| <FONT color="green">407</FONT> return compileOperation(new Div(), opPos);<a name="line.407"></a> |
| <FONT color="green">408</FONT> }<a name="line.408"></a> |
| <FONT color="green">409</FONT> <a name="line.409"></a> |
| <FONT color="green">410</FONT> /**<a name="line.410"></a> |
| <FONT color="green">411</FONT> * Compile a 'mod' operation.<a name="line.411"></a> |
| <FONT color="green">412</FONT> * <a name="line.412"></a> |
| <FONT color="green">413</FONT> * @param opPos The current position in the m_opMap array.<a name="line.413"></a> |
| <FONT color="green">414</FONT> *<a name="line.414"></a> |
| <FONT color="green">415</FONT> * @return reference to {@link org.apache.xpath.operations.Mod} instance.<a name="line.415"></a> |
| <FONT color="green">416</FONT> *<a name="line.416"></a> |
| <FONT color="green">417</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.417"></a> |
| <FONT color="green">418</FONT> */<a name="line.418"></a> |
| <FONT color="green">419</FONT> protected Expression mod(int opPos) throws TransformerException<a name="line.419"></a> |
| <FONT color="green">420</FONT> {<a name="line.420"></a> |
| <FONT color="green">421</FONT> return compileOperation(new Mod(), opPos);<a name="line.421"></a> |
| <FONT color="green">422</FONT> }<a name="line.422"></a> |
| <FONT color="green">423</FONT> <a name="line.423"></a> |
| <FONT color="green">424</FONT> /*<a name="line.424"></a> |
| <FONT color="green">425</FONT> * Compile a 'quo' operation.<a name="line.425"></a> |
| <FONT color="green">426</FONT> * <a name="line.426"></a> |
| <FONT color="green">427</FONT> * @param opPos The current position in the m_opMap array.<a name="line.427"></a> |
| <FONT color="green">428</FONT> *<a name="line.428"></a> |
| <FONT color="green">429</FONT> * @return reference to {@link org.apache.xpath.operations.Quo} instance.<a name="line.429"></a> |
| <FONT color="green">430</FONT> *<a name="line.430"></a> |
| <FONT color="green">431</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.431"></a> |
| <FONT color="green">432</FONT> */<a name="line.432"></a> |
| <FONT color="green">433</FONT> // protected Expression quo(int opPos) throws TransformerException<a name="line.433"></a> |
| <FONT color="green">434</FONT> // {<a name="line.434"></a> |
| <FONT color="green">435</FONT> // return compileOperation(new Quo(), opPos);<a name="line.435"></a> |
| <FONT color="green">436</FONT> // }<a name="line.436"></a> |
| <FONT color="green">437</FONT> <a name="line.437"></a> |
| <FONT color="green">438</FONT> /**<a name="line.438"></a> |
| <FONT color="green">439</FONT> * Compile a unary '-' operation.<a name="line.439"></a> |
| <FONT color="green">440</FONT> * <a name="line.440"></a> |
| <FONT color="green">441</FONT> * @param opPos The current position in the m_opMap array.<a name="line.441"></a> |
| <FONT color="green">442</FONT> *<a name="line.442"></a> |
| <FONT color="green">443</FONT> * @return reference to {@link org.apache.xpath.operations.Neg} instance.<a name="line.443"></a> |
| <FONT color="green">444</FONT> *<a name="line.444"></a> |
| <FONT color="green">445</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.445"></a> |
| <FONT color="green">446</FONT> */<a name="line.446"></a> |
| <FONT color="green">447</FONT> protected Expression neg(int opPos) throws TransformerException<a name="line.447"></a> |
| <FONT color="green">448</FONT> {<a name="line.448"></a> |
| <FONT color="green">449</FONT> return compileUnary(new Neg(), opPos);<a name="line.449"></a> |
| <FONT color="green">450</FONT> }<a name="line.450"></a> |
| <FONT color="green">451</FONT> <a name="line.451"></a> |
| <FONT color="green">452</FONT> /**<a name="line.452"></a> |
| <FONT color="green">453</FONT> * Compile a 'string(...)' operation.<a name="line.453"></a> |
| <FONT color="green">454</FONT> * <a name="line.454"></a> |
| <FONT color="green">455</FONT> * @param opPos The current position in the m_opMap array.<a name="line.455"></a> |
| <FONT color="green">456</FONT> *<a name="line.456"></a> |
| <FONT color="green">457</FONT> * @return reference to {@link org.apache.xpath.operations.String} instance.<a name="line.457"></a> |
| <FONT color="green">458</FONT> *<a name="line.458"></a> |
| <FONT color="green">459</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.459"></a> |
| <FONT color="green">460</FONT> */<a name="line.460"></a> |
| <FONT color="green">461</FONT> protected Expression string(int opPos) throws TransformerException<a name="line.461"></a> |
| <FONT color="green">462</FONT> {<a name="line.462"></a> |
| <FONT color="green">463</FONT> return compileUnary(new org.apache.xpath.operations.String(), opPos);<a name="line.463"></a> |
| <FONT color="green">464</FONT> }<a name="line.464"></a> |
| <FONT color="green">465</FONT> <a name="line.465"></a> |
| <FONT color="green">466</FONT> /**<a name="line.466"></a> |
| <FONT color="green">467</FONT> * Compile a 'boolean(...)' operation.<a name="line.467"></a> |
| <FONT color="green">468</FONT> * <a name="line.468"></a> |
| <FONT color="green">469</FONT> * @param opPos The current position in the m_opMap array.<a name="line.469"></a> |
| <FONT color="green">470</FONT> *<a name="line.470"></a> |
| <FONT color="green">471</FONT> * @return reference to {@link org.apache.xpath.operations.Bool} instance.<a name="line.471"></a> |
| <FONT color="green">472</FONT> *<a name="line.472"></a> |
| <FONT color="green">473</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.473"></a> |
| <FONT color="green">474</FONT> */<a name="line.474"></a> |
| <FONT color="green">475</FONT> protected Expression bool(int opPos) throws TransformerException<a name="line.475"></a> |
| <FONT color="green">476</FONT> {<a name="line.476"></a> |
| <FONT color="green">477</FONT> return compileUnary(new org.apache.xpath.operations.Bool(), opPos);<a name="line.477"></a> |
| <FONT color="green">478</FONT> }<a name="line.478"></a> |
| <FONT color="green">479</FONT> <a name="line.479"></a> |
| <FONT color="green">480</FONT> /**<a name="line.480"></a> |
| <FONT color="green">481</FONT> * Compile a 'number(...)' operation.<a name="line.481"></a> |
| <FONT color="green">482</FONT> * <a name="line.482"></a> |
| <FONT color="green">483</FONT> * @param opPos The current position in the m_opMap array.<a name="line.483"></a> |
| <FONT color="green">484</FONT> *<a name="line.484"></a> |
| <FONT color="green">485</FONT> * @return reference to {@link org.apache.xpath.operations.Number} instance.<a name="line.485"></a> |
| <FONT color="green">486</FONT> *<a name="line.486"></a> |
| <FONT color="green">487</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.487"></a> |
| <FONT color="green">488</FONT> */<a name="line.488"></a> |
| <FONT color="green">489</FONT> protected Expression number(int opPos) throws TransformerException<a name="line.489"></a> |
| <FONT color="green">490</FONT> {<a name="line.490"></a> |
| <FONT color="green">491</FONT> return compileUnary(new org.apache.xpath.operations.Number(), opPos);<a name="line.491"></a> |
| <FONT color="green">492</FONT> }<a name="line.492"></a> |
| <FONT color="green">493</FONT> <a name="line.493"></a> |
| <FONT color="green">494</FONT> /**<a name="line.494"></a> |
| <FONT color="green">495</FONT> * Compile a literal string value.<a name="line.495"></a> |
| <FONT color="green">496</FONT> * <a name="line.496"></a> |
| <FONT color="green">497</FONT> * @param opPos The current position in the m_opMap array.<a name="line.497"></a> |
| <FONT color="green">498</FONT> *<a name="line.498"></a> |
| <FONT color="green">499</FONT> * @return reference to {@link org.apache.xpath.objects.XString} instance.<a name="line.499"></a> |
| <FONT color="green">500</FONT> *<a name="line.500"></a> |
| <FONT color="green">501</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.501"></a> |
| <FONT color="green">502</FONT> */<a name="line.502"></a> |
| <FONT color="green">503</FONT> protected Expression literal(int opPos)<a name="line.503"></a> |
| <FONT color="green">504</FONT> {<a name="line.504"></a> |
| <FONT color="green">505</FONT> <a name="line.505"></a> |
| <FONT color="green">506</FONT> opPos = getFirstChildPos(opPos);<a name="line.506"></a> |
| <FONT color="green">507</FONT> <a name="line.507"></a> |
| <FONT color="green">508</FONT> return (XString) getTokenQueue().elementAt(getOp(opPos));<a name="line.508"></a> |
| <FONT color="green">509</FONT> }<a name="line.509"></a> |
| <FONT color="green">510</FONT> <a name="line.510"></a> |
| <FONT color="green">511</FONT> /**<a name="line.511"></a> |
| <FONT color="green">512</FONT> * Compile a literal number value.<a name="line.512"></a> |
| <FONT color="green">513</FONT> * <a name="line.513"></a> |
| <FONT color="green">514</FONT> * @param opPos The current position in the m_opMap array.<a name="line.514"></a> |
| <FONT color="green">515</FONT> *<a name="line.515"></a> |
| <FONT color="green">516</FONT> * @return reference to {@link org.apache.xpath.objects.XNumber} instance.<a name="line.516"></a> |
| <FONT color="green">517</FONT> *<a name="line.517"></a> |
| <FONT color="green">518</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.518"></a> |
| <FONT color="green">519</FONT> */<a name="line.519"></a> |
| <FONT color="green">520</FONT> protected Expression numberlit(int opPos)<a name="line.520"></a> |
| <FONT color="green">521</FONT> {<a name="line.521"></a> |
| <FONT color="green">522</FONT> <a name="line.522"></a> |
| <FONT color="green">523</FONT> opPos = getFirstChildPos(opPos);<a name="line.523"></a> |
| <FONT color="green">524</FONT> <a name="line.524"></a> |
| <FONT color="green">525</FONT> return (XNumber) getTokenQueue().elementAt(getOp(opPos));<a name="line.525"></a> |
| <FONT color="green">526</FONT> }<a name="line.526"></a> |
| <FONT color="green">527</FONT> <a name="line.527"></a> |
| <FONT color="green">528</FONT> /**<a name="line.528"></a> |
| <FONT color="green">529</FONT> * Compile a variable reference.<a name="line.529"></a> |
| <FONT color="green">530</FONT> * <a name="line.530"></a> |
| <FONT color="green">531</FONT> * @param opPos The current position in the m_opMap array.<a name="line.531"></a> |
| <FONT color="green">532</FONT> *<a name="line.532"></a> |
| <FONT color="green">533</FONT> * @return reference to {@link org.apache.xpath.operations.Variable} instance.<a name="line.533"></a> |
| <FONT color="green">534</FONT> *<a name="line.534"></a> |
| <FONT color="green">535</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.535"></a> |
| <FONT color="green">536</FONT> */<a name="line.536"></a> |
| <FONT color="green">537</FONT> protected Expression variable(int opPos) throws TransformerException<a name="line.537"></a> |
| <FONT color="green">538</FONT> {<a name="line.538"></a> |
| <FONT color="green">539</FONT> <a name="line.539"></a> |
| <FONT color="green">540</FONT> Variable var = new Variable();<a name="line.540"></a> |
| <FONT color="green">541</FONT> <a name="line.541"></a> |
| <FONT color="green">542</FONT> opPos = getFirstChildPos(opPos);<a name="line.542"></a> |
| <FONT color="green">543</FONT> <a name="line.543"></a> |
| <FONT color="green">544</FONT> int nsPos = getOp(opPos);<a name="line.544"></a> |
| <FONT color="green">545</FONT> java.lang.String namespace <a name="line.545"></a> |
| <FONT color="green">546</FONT> = (OpCodes.EMPTY == nsPos) ? null <a name="line.546"></a> |
| <FONT color="green">547</FONT> : (java.lang.String) getTokenQueue().elementAt(nsPos);<a name="line.547"></a> |
| <FONT color="green">548</FONT> java.lang.String localname <a name="line.548"></a> |
| <FONT color="green">549</FONT> = (java.lang.String) getTokenQueue().elementAt(getOp(opPos+1));<a name="line.549"></a> |
| <FONT color="green">550</FONT> QName qname = new QName(namespace, localname);<a name="line.550"></a> |
| <FONT color="green">551</FONT> <a name="line.551"></a> |
| <FONT color="green">552</FONT> var.setQName(qname);<a name="line.552"></a> |
| <FONT color="green">553</FONT> <a name="line.553"></a> |
| <FONT color="green">554</FONT> return var;<a name="line.554"></a> |
| <FONT color="green">555</FONT> }<a name="line.555"></a> |
| <FONT color="green">556</FONT> <a name="line.556"></a> |
| <FONT color="green">557</FONT> /**<a name="line.557"></a> |
| <FONT color="green">558</FONT> * Compile an expression group.<a name="line.558"></a> |
| <FONT color="green">559</FONT> * <a name="line.559"></a> |
| <FONT color="green">560</FONT> * @param opPos The current position in the m_opMap array.<a name="line.560"></a> |
| <FONT color="green">561</FONT> *<a name="line.561"></a> |
| <FONT color="green">562</FONT> * @return reference to the contained expression.<a name="line.562"></a> |
| <FONT color="green">563</FONT> *<a name="line.563"></a> |
| <FONT color="green">564</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.564"></a> |
| <FONT color="green">565</FONT> */<a name="line.565"></a> |
| <FONT color="green">566</FONT> protected Expression group(int opPos) throws TransformerException<a name="line.566"></a> |
| <FONT color="green">567</FONT> {<a name="line.567"></a> |
| <FONT color="green">568</FONT> <a name="line.568"></a> |
| <FONT color="green">569</FONT> // no-op<a name="line.569"></a> |
| <FONT color="green">570</FONT> return compile(opPos + 2);<a name="line.570"></a> |
| <FONT color="green">571</FONT> }<a name="line.571"></a> |
| <FONT color="green">572</FONT> <a name="line.572"></a> |
| <FONT color="green">573</FONT> /**<a name="line.573"></a> |
| <FONT color="green">574</FONT> * Compile a function argument.<a name="line.574"></a> |
| <FONT color="green">575</FONT> * <a name="line.575"></a> |
| <FONT color="green">576</FONT> * @param opPos The current position in the m_opMap array.<a name="line.576"></a> |
| <FONT color="green">577</FONT> *<a name="line.577"></a> |
| <FONT color="green">578</FONT> * @return reference to the argument expression.<a name="line.578"></a> |
| <FONT color="green">579</FONT> *<a name="line.579"></a> |
| <FONT color="green">580</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.580"></a> |
| <FONT color="green">581</FONT> */<a name="line.581"></a> |
| <FONT color="green">582</FONT> protected Expression arg(int opPos) throws TransformerException<a name="line.582"></a> |
| <FONT color="green">583</FONT> {<a name="line.583"></a> |
| <FONT color="green">584</FONT> <a name="line.584"></a> |
| <FONT color="green">585</FONT> // no-op<a name="line.585"></a> |
| <FONT color="green">586</FONT> return compile(opPos + 2);<a name="line.586"></a> |
| <FONT color="green">587</FONT> }<a name="line.587"></a> |
| <FONT color="green">588</FONT> <a name="line.588"></a> |
| <FONT color="green">589</FONT> /**<a name="line.589"></a> |
| <FONT color="green">590</FONT> * Compile a location path union. The UnionPathIterator itself may create<a name="line.590"></a> |
| <FONT color="green">591</FONT> * {@link org.apache.xpath.axes.LocPathIterator} children.<a name="line.591"></a> |
| <FONT color="green">592</FONT> * <a name="line.592"></a> |
| <FONT color="green">593</FONT> * @param opPos The current position in the m_opMap array.<a name="line.593"></a> |
| <FONT color="green">594</FONT> *<a name="line.594"></a> |
| <FONT color="green">595</FONT> * @return reference to {@link org.apache.xpath.axes.LocPathIterator} instance.<a name="line.595"></a> |
| <FONT color="green">596</FONT> *<a name="line.596"></a> |
| <FONT color="green">597</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.597"></a> |
| <FONT color="green">598</FONT> */<a name="line.598"></a> |
| <FONT color="green">599</FONT> protected Expression union(int opPos) throws TransformerException<a name="line.599"></a> |
| <FONT color="green">600</FONT> {<a name="line.600"></a> |
| <FONT color="green">601</FONT> locPathDepth++;<a name="line.601"></a> |
| <FONT color="green">602</FONT> try<a name="line.602"></a> |
| <FONT color="green">603</FONT> {<a name="line.603"></a> |
| <FONT color="green">604</FONT> return UnionPathIterator.createUnionIterator(this, opPos);<a name="line.604"></a> |
| <FONT color="green">605</FONT> }<a name="line.605"></a> |
| <FONT color="green">606</FONT> finally<a name="line.606"></a> |
| <FONT color="green">607</FONT> {<a name="line.607"></a> |
| <FONT color="green">608</FONT> locPathDepth--;<a name="line.608"></a> |
| <FONT color="green">609</FONT> }<a name="line.609"></a> |
| <FONT color="green">610</FONT> }<a name="line.610"></a> |
| <FONT color="green">611</FONT> <a name="line.611"></a> |
| <FONT color="green">612</FONT> private int locPathDepth = -1;<a name="line.612"></a> |
| <FONT color="green">613</FONT> <a name="line.613"></a> |
| <FONT color="green">614</FONT> /**<a name="line.614"></a> |
| <FONT color="green">615</FONT> * Get the level of the location path or union being constructed. <a name="line.615"></a> |
| <FONT color="green">616</FONT> * @return 0 if it is a top-level path.<a name="line.616"></a> |
| <FONT color="green">617</FONT> */<a name="line.617"></a> |
| <FONT color="green">618</FONT> public int getLocationPathDepth()<a name="line.618"></a> |
| <FONT color="green">619</FONT> {<a name="line.619"></a> |
| <FONT color="green">620</FONT> return locPathDepth;<a name="line.620"></a> |
| <FONT color="green">621</FONT> }<a name="line.621"></a> |
| <FONT color="green">622</FONT> <a name="line.622"></a> |
| <FONT color="green">623</FONT> /**<a name="line.623"></a> |
| <FONT color="green">624</FONT> * Get the function table <a name="line.624"></a> |
| <FONT color="green">625</FONT> */<a name="line.625"></a> |
| <FONT color="green">626</FONT> FunctionTable getFunctionTable()<a name="line.626"></a> |
| <FONT color="green">627</FONT> {<a name="line.627"></a> |
| <FONT color="green">628</FONT> return m_functionTable;<a name="line.628"></a> |
| <FONT color="green">629</FONT> }<a name="line.629"></a> |
| <FONT color="green">630</FONT> <a name="line.630"></a> |
| <FONT color="green">631</FONT> /**<a name="line.631"></a> |
| <FONT color="green">632</FONT> * Compile a location path. The LocPathIterator itself may create<a name="line.632"></a> |
| <FONT color="green">633</FONT> * {@link org.apache.xpath.axes.AxesWalker} children.<a name="line.633"></a> |
| <FONT color="green">634</FONT> * <a name="line.634"></a> |
| <FONT color="green">635</FONT> * @param opPos The current position in the m_opMap array.<a name="line.635"></a> |
| <FONT color="green">636</FONT> *<a name="line.636"></a> |
| <FONT color="green">637</FONT> * @return reference to {@link org.apache.xpath.axes.LocPathIterator} instance.<a name="line.637"></a> |
| <FONT color="green">638</FONT> *<a name="line.638"></a> |
| <FONT color="green">639</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.639"></a> |
| <FONT color="green">640</FONT> */<a name="line.640"></a> |
| <FONT color="green">641</FONT> public Expression locationPath(int opPos) throws TransformerException<a name="line.641"></a> |
| <FONT color="green">642</FONT> {<a name="line.642"></a> |
| <FONT color="green">643</FONT> locPathDepth++;<a name="line.643"></a> |
| <FONT color="green">644</FONT> try<a name="line.644"></a> |
| <FONT color="green">645</FONT> {<a name="line.645"></a> |
| <FONT color="green">646</FONT> DTMIterator iter = WalkerFactory.newDTMIterator(this, opPos, (locPathDepth == 0));<a name="line.646"></a> |
| <FONT color="green">647</FONT> return (Expression)iter; // cast OK, I guess.<a name="line.647"></a> |
| <FONT color="green">648</FONT> }<a name="line.648"></a> |
| <FONT color="green">649</FONT> finally<a name="line.649"></a> |
| <FONT color="green">650</FONT> {<a name="line.650"></a> |
| <FONT color="green">651</FONT> locPathDepth--;<a name="line.651"></a> |
| <FONT color="green">652</FONT> }<a name="line.652"></a> |
| <FONT color="green">653</FONT> }<a name="line.653"></a> |
| <FONT color="green">654</FONT> <a name="line.654"></a> |
| <FONT color="green">655</FONT> /**<a name="line.655"></a> |
| <FONT color="green">656</FONT> * Compile a location step predicate expression.<a name="line.656"></a> |
| <FONT color="green">657</FONT> * <a name="line.657"></a> |
| <FONT color="green">658</FONT> * @param opPos The current position in the m_opMap array.<a name="line.658"></a> |
| <FONT color="green">659</FONT> *<a name="line.659"></a> |
| <FONT color="green">660</FONT> * @return the contained predicate expression.<a name="line.660"></a> |
| <FONT color="green">661</FONT> *<a name="line.661"></a> |
| <FONT color="green">662</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.662"></a> |
| <FONT color="green">663</FONT> */<a name="line.663"></a> |
| <FONT color="green">664</FONT> public Expression predicate(int opPos) throws TransformerException<a name="line.664"></a> |
| <FONT color="green">665</FONT> {<a name="line.665"></a> |
| <FONT color="green">666</FONT> return compile(opPos + 2);<a name="line.666"></a> |
| <FONT color="green">667</FONT> }<a name="line.667"></a> |
| <FONT color="green">668</FONT> <a name="line.668"></a> |
| <FONT color="green">669</FONT> /**<a name="line.669"></a> |
| <FONT color="green">670</FONT> * Compile an entire match pattern expression.<a name="line.670"></a> |
| <FONT color="green">671</FONT> * <a name="line.671"></a> |
| <FONT color="green">672</FONT> * @param opPos The current position in the m_opMap array.<a name="line.672"></a> |
| <FONT color="green">673</FONT> *<a name="line.673"></a> |
| <FONT color="green">674</FONT> * @return reference to {@link org.apache.xpath.patterns.UnionPattern} instance.<a name="line.674"></a> |
| <FONT color="green">675</FONT> *<a name="line.675"></a> |
| <FONT color="green">676</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.676"></a> |
| <FONT color="green">677</FONT> */<a name="line.677"></a> |
| <FONT color="green">678</FONT> protected Expression matchPattern(int opPos) throws TransformerException<a name="line.678"></a> |
| <FONT color="green">679</FONT> {<a name="line.679"></a> |
| <FONT color="green">680</FONT> locPathDepth++;<a name="line.680"></a> |
| <FONT color="green">681</FONT> try<a name="line.681"></a> |
| <FONT color="green">682</FONT> {<a name="line.682"></a> |
| <FONT color="green">683</FONT> // First, count...<a name="line.683"></a> |
| <FONT color="green">684</FONT> int nextOpPos = opPos;<a name="line.684"></a> |
| <FONT color="green">685</FONT> int i;<a name="line.685"></a> |
| <FONT color="green">686</FONT> <a name="line.686"></a> |
| <FONT color="green">687</FONT> for (i = 0; getOp(nextOpPos) == OpCodes.OP_LOCATIONPATHPATTERN; i++)<a name="line.687"></a> |
| <FONT color="green">688</FONT> {<a name="line.688"></a> |
| <FONT color="green">689</FONT> nextOpPos = getNextOpPos(nextOpPos);<a name="line.689"></a> |
| <FONT color="green">690</FONT> }<a name="line.690"></a> |
| <FONT color="green">691</FONT> <a name="line.691"></a> |
| <FONT color="green">692</FONT> if (i == 1)<a name="line.692"></a> |
| <FONT color="green">693</FONT> return compile(opPos);<a name="line.693"></a> |
| <FONT color="green">694</FONT> <a name="line.694"></a> |
| <FONT color="green">695</FONT> UnionPattern up = new UnionPattern();<a name="line.695"></a> |
| <FONT color="green">696</FONT> StepPattern[] patterns = new StepPattern[i];<a name="line.696"></a> |
| <FONT color="green">697</FONT> <a name="line.697"></a> |
| <FONT color="green">698</FONT> for (i = 0; getOp(opPos) == OpCodes.OP_LOCATIONPATHPATTERN; i++)<a name="line.698"></a> |
| <FONT color="green">699</FONT> {<a name="line.699"></a> |
| <FONT color="green">700</FONT> nextOpPos = getNextOpPos(opPos);<a name="line.700"></a> |
| <FONT color="green">701</FONT> patterns[i] = (StepPattern) compile(opPos);<a name="line.701"></a> |
| <FONT color="green">702</FONT> opPos = nextOpPos;<a name="line.702"></a> |
| <FONT color="green">703</FONT> }<a name="line.703"></a> |
| <FONT color="green">704</FONT> <a name="line.704"></a> |
| <FONT color="green">705</FONT> up.setPatterns(patterns);<a name="line.705"></a> |
| <FONT color="green">706</FONT> <a name="line.706"></a> |
| <FONT color="green">707</FONT> return up;<a name="line.707"></a> |
| <FONT color="green">708</FONT> }<a name="line.708"></a> |
| <FONT color="green">709</FONT> finally<a name="line.709"></a> |
| <FONT color="green">710</FONT> {<a name="line.710"></a> |
| <FONT color="green">711</FONT> locPathDepth--;<a name="line.711"></a> |
| <FONT color="green">712</FONT> }<a name="line.712"></a> |
| <FONT color="green">713</FONT> }<a name="line.713"></a> |
| <FONT color="green">714</FONT> <a name="line.714"></a> |
| <FONT color="green">715</FONT> /**<a name="line.715"></a> |
| <FONT color="green">716</FONT> * Compile a location match pattern unit expression.<a name="line.716"></a> |
| <FONT color="green">717</FONT> * <a name="line.717"></a> |
| <FONT color="green">718</FONT> * @param opPos The current position in the m_opMap array.<a name="line.718"></a> |
| <FONT color="green">719</FONT> *<a name="line.719"></a> |
| <FONT color="green">720</FONT> * @return reference to {@link org.apache.xpath.patterns.StepPattern} instance.<a name="line.720"></a> |
| <FONT color="green">721</FONT> *<a name="line.721"></a> |
| <FONT color="green">722</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.722"></a> |
| <FONT color="green">723</FONT> */<a name="line.723"></a> |
| <FONT color="green">724</FONT> public Expression locationPathPattern(int opPos)<a name="line.724"></a> |
| <FONT color="green">725</FONT> throws TransformerException<a name="line.725"></a> |
| <FONT color="green">726</FONT> {<a name="line.726"></a> |
| <FONT color="green">727</FONT> <a name="line.727"></a> |
| <FONT color="green">728</FONT> opPos = getFirstChildPos(opPos);<a name="line.728"></a> |
| <FONT color="green">729</FONT> <a name="line.729"></a> |
| <FONT color="green">730</FONT> return stepPattern(opPos, 0, null);<a name="line.730"></a> |
| <FONT color="green">731</FONT> }<a name="line.731"></a> |
| <FONT color="green">732</FONT> <a name="line.732"></a> |
| <FONT color="green">733</FONT> /**<a name="line.733"></a> |
| <FONT color="green">734</FONT> * Get a {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what <a name="line.734"></a> |
| <FONT color="green">735</FONT> * to show for a given node test.<a name="line.735"></a> |
| <FONT color="green">736</FONT> *<a name="line.736"></a> |
| <FONT color="green">737</FONT> * @param opPos the op map position for the location step.<a name="line.737"></a> |
| <FONT color="green">738</FONT> *<a name="line.738"></a> |
| <FONT color="green">739</FONT> * @return {@link org.w3c.dom.traversal.NodeFilter} bit set that tells what <a name="line.739"></a> |
| <FONT color="green">740</FONT> * to show for a given node test.<a name="line.740"></a> |
| <FONT color="green">741</FONT> */<a name="line.741"></a> |
| <FONT color="green">742</FONT> public int getWhatToShow(int opPos)<a name="line.742"></a> |
| <FONT color="green">743</FONT> {<a name="line.743"></a> |
| <FONT color="green">744</FONT> <a name="line.744"></a> |
| <FONT color="green">745</FONT> int axesType = getOp(opPos);<a name="line.745"></a> |
| <FONT color="green">746</FONT> int testType = getOp(opPos + 3);<a name="line.746"></a> |
| <FONT color="green">747</FONT> <a name="line.747"></a> |
| <FONT color="green">748</FONT> // System.out.println("testType: "+testType);<a name="line.748"></a> |
| <FONT color="green">749</FONT> switch (testType)<a name="line.749"></a> |
| <FONT color="green">750</FONT> {<a name="line.750"></a> |
| <FONT color="green">751</FONT> case OpCodes.NODETYPE_COMMENT :<a name="line.751"></a> |
| <FONT color="green">752</FONT> return DTMFilter.SHOW_COMMENT;<a name="line.752"></a> |
| <FONT color="green">753</FONT> case OpCodes.NODETYPE_TEXT :<a name="line.753"></a> |
| <FONT color="green">754</FONT> // return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_COMMENT;<a name="line.754"></a> |
| <FONT color="green">755</FONT> return DTMFilter.SHOW_TEXT | DTMFilter.SHOW_CDATA_SECTION ;<a name="line.755"></a> |
| <FONT color="green">756</FONT> case OpCodes.NODETYPE_PI :<a name="line.756"></a> |
| <FONT color="green">757</FONT> return DTMFilter.SHOW_PROCESSING_INSTRUCTION;<a name="line.757"></a> |
| <FONT color="green">758</FONT> case OpCodes.NODETYPE_NODE :<a name="line.758"></a> |
| <FONT color="green">759</FONT> // return DTMFilter.SHOW_ALL;<a name="line.759"></a> |
| <FONT color="green">760</FONT> switch (axesType)<a name="line.760"></a> |
| <FONT color="green">761</FONT> {<a name="line.761"></a> |
| <FONT color="green">762</FONT> case OpCodes.FROM_NAMESPACE:<a name="line.762"></a> |
| <FONT color="green">763</FONT> return DTMFilter.SHOW_NAMESPACE;<a name="line.763"></a> |
| <FONT color="green">764</FONT> case OpCodes.FROM_ATTRIBUTES :<a name="line.764"></a> |
| <FONT color="green">765</FONT> case OpCodes.MATCH_ATTRIBUTE :<a name="line.765"></a> |
| <FONT color="green">766</FONT> return DTMFilter.SHOW_ATTRIBUTE;<a name="line.766"></a> |
| <FONT color="green">767</FONT> case OpCodes.FROM_SELF:<a name="line.767"></a> |
| <FONT color="green">768</FONT> case OpCodes.FROM_ANCESTORS_OR_SELF:<a name="line.768"></a> |
| <FONT color="green">769</FONT> case OpCodes.FROM_DESCENDANTS_OR_SELF:<a name="line.769"></a> |
| <FONT color="green">770</FONT> return DTMFilter.SHOW_ALL;<a name="line.770"></a> |
| <FONT color="green">771</FONT> default:<a name="line.771"></a> |
| <FONT color="green">772</FONT> if (getOp(0) == OpCodes.OP_MATCHPATTERN)<a name="line.772"></a> |
| <FONT color="green">773</FONT> return ~DTMFilter.SHOW_ATTRIBUTE<a name="line.773"></a> |
| <FONT color="green">774</FONT> & ~DTMFilter.SHOW_DOCUMENT<a name="line.774"></a> |
| <FONT color="green">775</FONT> & ~DTMFilter.SHOW_DOCUMENT_FRAGMENT;<a name="line.775"></a> |
| <FONT color="green">776</FONT> else<a name="line.776"></a> |
| <FONT color="green">777</FONT> return ~DTMFilter.SHOW_ATTRIBUTE;<a name="line.777"></a> |
| <FONT color="green">778</FONT> }<a name="line.778"></a> |
| <FONT color="green">779</FONT> case OpCodes.NODETYPE_ROOT :<a name="line.779"></a> |
| <FONT color="green">780</FONT> return DTMFilter.SHOW_DOCUMENT | DTMFilter.SHOW_DOCUMENT_FRAGMENT;<a name="line.780"></a> |
| <FONT color="green">781</FONT> case OpCodes.NODETYPE_FUNCTEST :<a name="line.781"></a> |
| <FONT color="green">782</FONT> return NodeTest.SHOW_BYFUNCTION;<a name="line.782"></a> |
| <FONT color="green">783</FONT> case OpCodes.NODENAME :<a name="line.783"></a> |
| <FONT color="green">784</FONT> switch (axesType)<a name="line.784"></a> |
| <FONT color="green">785</FONT> {<a name="line.785"></a> |
| <FONT color="green">786</FONT> case OpCodes.FROM_NAMESPACE :<a name="line.786"></a> |
| <FONT color="green">787</FONT> return DTMFilter.SHOW_NAMESPACE;<a name="line.787"></a> |
| <FONT color="green">788</FONT> case OpCodes.FROM_ATTRIBUTES :<a name="line.788"></a> |
| <FONT color="green">789</FONT> case OpCodes.MATCH_ATTRIBUTE :<a name="line.789"></a> |
| <FONT color="green">790</FONT> return DTMFilter.SHOW_ATTRIBUTE;<a name="line.790"></a> |
| <FONT color="green">791</FONT> <a name="line.791"></a> |
| <FONT color="green">792</FONT> // break;<a name="line.792"></a> |
| <FONT color="green">793</FONT> case OpCodes.MATCH_ANY_ANCESTOR :<a name="line.793"></a> |
| <FONT color="green">794</FONT> case OpCodes.MATCH_IMMEDIATE_ANCESTOR :<a name="line.794"></a> |
| <FONT color="green">795</FONT> return DTMFilter.SHOW_ELEMENT;<a name="line.795"></a> |
| <FONT color="green">796</FONT> <a name="line.796"></a> |
| <FONT color="green">797</FONT> // break;<a name="line.797"></a> |
| <FONT color="green">798</FONT> default :<a name="line.798"></a> |
| <FONT color="green">799</FONT> return DTMFilter.SHOW_ELEMENT;<a name="line.799"></a> |
| <FONT color="green">800</FONT> }<a name="line.800"></a> |
| <FONT color="green">801</FONT> default :<a name="line.801"></a> |
| <FONT color="green">802</FONT> // System.err.println("We should never reach here.");<a name="line.802"></a> |
| <FONT color="green">803</FONT> return DTMFilter.SHOW_ALL;<a name="line.803"></a> |
| <FONT color="green">804</FONT> }<a name="line.804"></a> |
| <FONT color="green">805</FONT> }<a name="line.805"></a> |
| <FONT color="green">806</FONT> <a name="line.806"></a> |
| <FONT color="green">807</FONT> private static final boolean DEBUG = false;<a name="line.807"></a> |
| <FONT color="green">808</FONT> <a name="line.808"></a> |
| <FONT color="green">809</FONT> /**<a name="line.809"></a> |
| <FONT color="green">810</FONT> * Compile a step pattern unit expression, used for both location paths <a name="line.810"></a> |
| <FONT color="green">811</FONT> * and match patterns.<a name="line.811"></a> |
| <FONT color="green">812</FONT> * <a name="line.812"></a> |
| <FONT color="green">813</FONT> * @param opPos The current position in the m_opMap array.<a name="line.813"></a> |
| <FONT color="green">814</FONT> * @param stepCount The number of steps to expect.<a name="line.814"></a> |
| <FONT color="green">815</FONT> * @param ancestorPattern The owning StepPattern, which may be null.<a name="line.815"></a> |
| <FONT color="green">816</FONT> *<a name="line.816"></a> |
| <FONT color="green">817</FONT> * @return reference to {@link org.apache.xpath.patterns.StepPattern} instance.<a name="line.817"></a> |
| <FONT color="green">818</FONT> *<a name="line.818"></a> |
| <FONT color="green">819</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.819"></a> |
| <FONT color="green">820</FONT> */<a name="line.820"></a> |
| <FONT color="green">821</FONT> protected StepPattern stepPattern(<a name="line.821"></a> |
| <FONT color="green">822</FONT> int opPos, int stepCount, StepPattern ancestorPattern)<a name="line.822"></a> |
| <FONT color="green">823</FONT> throws TransformerException<a name="line.823"></a> |
| <FONT color="green">824</FONT> {<a name="line.824"></a> |
| <FONT color="green">825</FONT> <a name="line.825"></a> |
| <FONT color="green">826</FONT> int startOpPos = opPos;<a name="line.826"></a> |
| <FONT color="green">827</FONT> int stepType = getOp(opPos);<a name="line.827"></a> |
| <FONT color="green">828</FONT> <a name="line.828"></a> |
| <FONT color="green">829</FONT> if (OpCodes.ENDOP == stepType)<a name="line.829"></a> |
| <FONT color="green">830</FONT> {<a name="line.830"></a> |
| <FONT color="green">831</FONT> return null;<a name="line.831"></a> |
| <FONT color="green">832</FONT> }<a name="line.832"></a> |
| <FONT color="green">833</FONT> <a name="line.833"></a> |
| <FONT color="green">834</FONT> boolean addMagicSelf = true;<a name="line.834"></a> |
| <FONT color="green">835</FONT> <a name="line.835"></a> |
| <FONT color="green">836</FONT> int endStep = getNextOpPos(opPos);<a name="line.836"></a> |
| <FONT color="green">837</FONT> <a name="line.837"></a> |
| <FONT color="green">838</FONT> // int nextStepType = getOpMap()[endStep];<a name="line.838"></a> |
| <FONT color="green">839</FONT> StepPattern pattern;<a name="line.839"></a> |
| <FONT color="green">840</FONT> <a name="line.840"></a> |
| <FONT color="green">841</FONT> // boolean isSimple = ((OpCodes.ENDOP == nextStepType) && (stepCount == 0));<a name="line.841"></a> |
| <FONT color="green">842</FONT> int argLen;<a name="line.842"></a> |
| <FONT color="green">843</FONT> <a name="line.843"></a> |
| <FONT color="green">844</FONT> switch (stepType)<a name="line.844"></a> |
| <FONT color="green">845</FONT> {<a name="line.845"></a> |
| <FONT color="green">846</FONT> case OpCodes.OP_FUNCTION :<a name="line.846"></a> |
| <FONT color="green">847</FONT> if(DEBUG)<a name="line.847"></a> |
| <FONT color="green">848</FONT> System.out.println("MATCH_FUNCTION: "+m_currentPattern); <a name="line.848"></a> |
| <FONT color="green">849</FONT> addMagicSelf = false;<a name="line.849"></a> |
| <FONT color="green">850</FONT> argLen = getOp(opPos + OpMap.MAPINDEX_LENGTH);<a name="line.850"></a> |
| <FONT color="green">851</FONT> pattern = new FunctionPattern(compileFunction(opPos), Axis.PARENT, Axis.CHILD);<a name="line.851"></a> |
| <FONT color="green">852</FONT> break;<a name="line.852"></a> |
| <FONT color="green">853</FONT> case OpCodes.FROM_ROOT :<a name="line.853"></a> |
| <FONT color="green">854</FONT> if(DEBUG)<a name="line.854"></a> |
| <FONT color="green">855</FONT> System.out.println("FROM_ROOT, "+m_currentPattern);<a name="line.855"></a> |
| <FONT color="green">856</FONT> addMagicSelf = false;<a name="line.856"></a> |
| <FONT color="green">857</FONT> argLen = getArgLengthOfStep(opPos);<a name="line.857"></a> |
| <FONT color="green">858</FONT> opPos = getFirstChildPosOfStep(opPos);<a name="line.858"></a> |
| <FONT color="green">859</FONT> pattern = new StepPattern(DTMFilter.SHOW_DOCUMENT | <a name="line.859"></a> |
| <FONT color="green">860</FONT> DTMFilter.SHOW_DOCUMENT_FRAGMENT,<a name="line.860"></a> |
| <FONT color="green">861</FONT> Axis.PARENT, Axis.CHILD);<a name="line.861"></a> |
| <FONT color="green">862</FONT> break;<a name="line.862"></a> |
| <FONT color="green">863</FONT> case OpCodes.MATCH_ATTRIBUTE :<a name="line.863"></a> |
| <FONT color="green">864</FONT> if(DEBUG)<a name="line.864"></a> |
| <FONT color="green">865</FONT> System.out.println("MATCH_ATTRIBUTE: "+getStepLocalName(startOpPos)+", "+m_currentPattern);<a name="line.865"></a> |
| <FONT color="green">866</FONT> argLen = getArgLengthOfStep(opPos);<a name="line.866"></a> |
| <FONT color="green">867</FONT> opPos = getFirstChildPosOfStep(opPos);<a name="line.867"></a> |
| <FONT color="green">868</FONT> pattern = new StepPattern(DTMFilter.SHOW_ATTRIBUTE,<a name="line.868"></a> |
| <FONT color="green">869</FONT> getStepNS(startOpPos),<a name="line.869"></a> |
| <FONT color="green">870</FONT> getStepLocalName(startOpPos),<a name="line.870"></a> |
| <FONT color="green">871</FONT> Axis.PARENT, Axis.ATTRIBUTE);<a name="line.871"></a> |
| <FONT color="green">872</FONT> break;<a name="line.872"></a> |
| <FONT color="green">873</FONT> case OpCodes.MATCH_ANY_ANCESTOR :<a name="line.873"></a> |
| <FONT color="green">874</FONT> if(DEBUG)<a name="line.874"></a> |
| <FONT color="green">875</FONT> System.out.println("MATCH_ANY_ANCESTOR: "+getStepLocalName(startOpPos)+", "+m_currentPattern);<a name="line.875"></a> |
| <FONT color="green">876</FONT> argLen = getArgLengthOfStep(opPos);<a name="line.876"></a> |
| <FONT color="green">877</FONT> opPos = getFirstChildPosOfStep(opPos);<a name="line.877"></a> |
| <FONT color="green">878</FONT> int what = getWhatToShow(startOpPos);<a name="line.878"></a> |
| <FONT color="green">879</FONT> // bit-o-hackery, but this code is due for the morgue anyway...<a name="line.879"></a> |
| <FONT color="green">880</FONT> if(0x00000500 == what)<a name="line.880"></a> |
| <FONT color="green">881</FONT> addMagicSelf = false;<a name="line.881"></a> |
| <FONT color="green">882</FONT> pattern = new StepPattern(getWhatToShow(startOpPos),<a name="line.882"></a> |
| <FONT color="green">883</FONT> getStepNS(startOpPos),<a name="line.883"></a> |
| <FONT color="green">884</FONT> getStepLocalName(startOpPos),<a name="line.884"></a> |
| <FONT color="green">885</FONT> Axis.ANCESTOR, Axis.CHILD);<a name="line.885"></a> |
| <FONT color="green">886</FONT> break;<a name="line.886"></a> |
| <FONT color="green">887</FONT> case OpCodes.MATCH_IMMEDIATE_ANCESTOR :<a name="line.887"></a> |
| <FONT color="green">888</FONT> if(DEBUG)<a name="line.888"></a> |
| <FONT color="green">889</FONT> System.out.println("MATCH_IMMEDIATE_ANCESTOR: "+getStepLocalName(startOpPos)+", "+m_currentPattern);<a name="line.889"></a> |
| <FONT color="green">890</FONT> argLen = getArgLengthOfStep(opPos);<a name="line.890"></a> |
| <FONT color="green">891</FONT> opPos = getFirstChildPosOfStep(opPos);<a name="line.891"></a> |
| <FONT color="green">892</FONT> pattern = new StepPattern(getWhatToShow(startOpPos),<a name="line.892"></a> |
| <FONT color="green">893</FONT> getStepNS(startOpPos),<a name="line.893"></a> |
| <FONT color="green">894</FONT> getStepLocalName(startOpPos),<a name="line.894"></a> |
| <FONT color="green">895</FONT> Axis.PARENT, Axis.CHILD);<a name="line.895"></a> |
| <FONT color="green">896</FONT> break;<a name="line.896"></a> |
| <FONT color="green">897</FONT> default :<a name="line.897"></a> |
| <FONT color="green">898</FONT> error(XPATHErrorResources.ER_UNKNOWN_MATCH_OPERATION, null); //"unknown match operation!");<a name="line.898"></a> |
| <FONT color="green">899</FONT> <a name="line.899"></a> |
| <FONT color="green">900</FONT> return null;<a name="line.900"></a> |
| <FONT color="green">901</FONT> }<a name="line.901"></a> |
| <FONT color="green">902</FONT> <a name="line.902"></a> |
| <FONT color="green">903</FONT> pattern.setPredicates(getCompiledPredicates(opPos + argLen));<a name="line.903"></a> |
| <FONT color="green">904</FONT> if(null == ancestorPattern)<a name="line.904"></a> |
| <FONT color="green">905</FONT> {<a name="line.905"></a> |
| <FONT color="green">906</FONT> // This is the magic and invisible "." at the head of every <a name="line.906"></a> |
| <FONT color="green">907</FONT> // match pattern, and corresponds to the current node in the context <a name="line.907"></a> |
| <FONT color="green">908</FONT> // list, from where predicates are counted.<a name="line.908"></a> |
| <FONT color="green">909</FONT> // So, in order to calculate "foo[3]", it has to count from the <a name="line.909"></a> |
| <FONT color="green">910</FONT> // current node in the context list, so, from that current node, <a name="line.910"></a> |
| <FONT color="green">911</FONT> // the full pattern is really "self::node()/child::foo[3]". If you <a name="line.911"></a> |
| <FONT color="green">912</FONT> // translate this to a select pattern from the node being tested, <a name="line.912"></a> |
| <FONT color="green">913</FONT> // which is really how we're treating match patterns, it works out to <a name="line.913"></a> |
| <FONT color="green">914</FONT> // self::foo/parent::node[child::foo[3]]", or close enough.<a name="line.914"></a> |
| <FONT color="green">915</FONT> /* if(addMagicSelf && pattern.getPredicateCount() > 0)<a name="line.915"></a> |
| <FONT color="green">916</FONT> {<a name="line.916"></a> |
| <FONT color="green">917</FONT> StepPattern selfPattern = new StepPattern(DTMFilter.SHOW_ALL, <a name="line.917"></a> |
| <FONT color="green">918</FONT> Axis.PARENT, Axis.CHILD);<a name="line.918"></a> |
| <FONT color="green">919</FONT> // We need to keep the new nodetest from affecting the score...<a name="line.919"></a> |
| <FONT color="green">920</FONT> XNumber score = pattern.getStaticScore();<a name="line.920"></a> |
| <FONT color="green">921</FONT> pattern.setRelativePathPattern(selfPattern);<a name="line.921"></a> |
| <FONT color="green">922</FONT> pattern.setStaticScore(score);<a name="line.922"></a> |
| <FONT color="green">923</FONT> selfPattern.setStaticScore(score);<a name="line.923"></a> |
| <FONT color="green">924</FONT> }*/<a name="line.924"></a> |
| <FONT color="green">925</FONT> }<a name="line.925"></a> |
| <FONT color="green">926</FONT> else<a name="line.926"></a> |
| <FONT color="green">927</FONT> {<a name="line.927"></a> |
| <FONT color="green">928</FONT> // System.out.println("Setting "+ancestorPattern+" as relative to "+pattern);<a name="line.928"></a> |
| <FONT color="green">929</FONT> pattern.setRelativePathPattern(ancestorPattern);<a name="line.929"></a> |
| <FONT color="green">930</FONT> }<a name="line.930"></a> |
| <FONT color="green">931</FONT> <a name="line.931"></a> |
| <FONT color="green">932</FONT> StepPattern relativePathPattern = stepPattern(endStep, stepCount + 1,<a name="line.932"></a> |
| <FONT color="green">933</FONT> pattern);<a name="line.933"></a> |
| <FONT color="green">934</FONT> <a name="line.934"></a> |
| <FONT color="green">935</FONT> return (null != relativePathPattern) ? relativePathPattern : pattern;<a name="line.935"></a> |
| <FONT color="green">936</FONT> }<a name="line.936"></a> |
| <FONT color="green">937</FONT> <a name="line.937"></a> |
| <FONT color="green">938</FONT> /**<a name="line.938"></a> |
| <FONT color="green">939</FONT> * Compile a zero or more predicates for a given match pattern.<a name="line.939"></a> |
| <FONT color="green">940</FONT> * <a name="line.940"></a> |
| <FONT color="green">941</FONT> * @param opPos The position of the first predicate the m_opMap array.<a name="line.941"></a> |
| <FONT color="green">942</FONT> *<a name="line.942"></a> |
| <FONT color="green">943</FONT> * @return reference to array of {@link org.apache.xpath.Expression} instances.<a name="line.943"></a> |
| <FONT color="green">944</FONT> *<a name="line.944"></a> |
| <FONT color="green">945</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.945"></a> |
| <FONT color="green">946</FONT> */<a name="line.946"></a> |
| <FONT color="green">947</FONT> public Expression[] getCompiledPredicates(int opPos)<a name="line.947"></a> |
| <FONT color="green">948</FONT> throws TransformerException<a name="line.948"></a> |
| <FONT color="green">949</FONT> {<a name="line.949"></a> |
| <FONT color="green">950</FONT> <a name="line.950"></a> |
| <FONT color="green">951</FONT> int count = countPredicates(opPos);<a name="line.951"></a> |
| <FONT color="green">952</FONT> <a name="line.952"></a> |
| <FONT color="green">953</FONT> if (count > 0)<a name="line.953"></a> |
| <FONT color="green">954</FONT> {<a name="line.954"></a> |
| <FONT color="green">955</FONT> Expression[] predicates = new Expression[count];<a name="line.955"></a> |
| <FONT color="green">956</FONT> <a name="line.956"></a> |
| <FONT color="green">957</FONT> compilePredicates(opPos, predicates);<a name="line.957"></a> |
| <FONT color="green">958</FONT> <a name="line.958"></a> |
| <FONT color="green">959</FONT> return predicates;<a name="line.959"></a> |
| <FONT color="green">960</FONT> }<a name="line.960"></a> |
| <FONT color="green">961</FONT> <a name="line.961"></a> |
| <FONT color="green">962</FONT> return null;<a name="line.962"></a> |
| <FONT color="green">963</FONT> }<a name="line.963"></a> |
| <FONT color="green">964</FONT> <a name="line.964"></a> |
| <FONT color="green">965</FONT> /**<a name="line.965"></a> |
| <FONT color="green">966</FONT> * Count the number of predicates in the step.<a name="line.966"></a> |
| <FONT color="green">967</FONT> *<a name="line.967"></a> |
| <FONT color="green">968</FONT> * @param opPos The position of the first predicate the m_opMap array.<a name="line.968"></a> |
| <FONT color="green">969</FONT> *<a name="line.969"></a> |
| <FONT color="green">970</FONT> * @return The number of predicates for this step.<a name="line.970"></a> |
| <FONT color="green">971</FONT> *<a name="line.971"></a> |
| <FONT color="green">972</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.972"></a> |
| <FONT color="green">973</FONT> */<a name="line.973"></a> |
| <FONT color="green">974</FONT> public int countPredicates(int opPos) throws TransformerException<a name="line.974"></a> |
| <FONT color="green">975</FONT> {<a name="line.975"></a> |
| <FONT color="green">976</FONT> <a name="line.976"></a> |
| <FONT color="green">977</FONT> int count = 0;<a name="line.977"></a> |
| <FONT color="green">978</FONT> <a name="line.978"></a> |
| <FONT color="green">979</FONT> while (OpCodes.OP_PREDICATE == getOp(opPos))<a name="line.979"></a> |
| <FONT color="green">980</FONT> {<a name="line.980"></a> |
| <FONT color="green">981</FONT> count++;<a name="line.981"></a> |
| <FONT color="green">982</FONT> <a name="line.982"></a> |
| <FONT color="green">983</FONT> opPos = getNextOpPos(opPos);<a name="line.983"></a> |
| <FONT color="green">984</FONT> }<a name="line.984"></a> |
| <FONT color="green">985</FONT> <a name="line.985"></a> |
| <FONT color="green">986</FONT> return count;<a name="line.986"></a> |
| <FONT color="green">987</FONT> }<a name="line.987"></a> |
| <FONT color="green">988</FONT> <a name="line.988"></a> |
| <FONT color="green">989</FONT> /**<a name="line.989"></a> |
| <FONT color="green">990</FONT> * Compiles predicates in the step.<a name="line.990"></a> |
| <FONT color="green">991</FONT> *<a name="line.991"></a> |
| <FONT color="green">992</FONT> * @param opPos The position of the first predicate the m_opMap array.<a name="line.992"></a> |
| <FONT color="green">993</FONT> * @param predicates An empty pre-determined array of <a name="line.993"></a> |
| <FONT color="green">994</FONT> * {@link org.apache.xpath.Expression}s, that will be filled in.<a name="line.994"></a> |
| <FONT color="green">995</FONT> *<a name="line.995"></a> |
| <FONT color="green">996</FONT> * @throws TransformerException<a name="line.996"></a> |
| <FONT color="green">997</FONT> */<a name="line.997"></a> |
| <FONT color="green">998</FONT> private void compilePredicates(int opPos, Expression[] predicates)<a name="line.998"></a> |
| <FONT color="green">999</FONT> throws TransformerException<a name="line.999"></a> |
| <FONT color="green">1000</FONT> {<a name="line.1000"></a> |
| <FONT color="green">1001</FONT> <a name="line.1001"></a> |
| <FONT color="green">1002</FONT> for (int i = 0; OpCodes.OP_PREDICATE == getOp(opPos); i++)<a name="line.1002"></a> |
| <FONT color="green">1003</FONT> {<a name="line.1003"></a> |
| <FONT color="green">1004</FONT> predicates[i] = predicate(opPos);<a name="line.1004"></a> |
| <FONT color="green">1005</FONT> opPos = getNextOpPos(opPos);<a name="line.1005"></a> |
| <FONT color="green">1006</FONT> }<a name="line.1006"></a> |
| <FONT color="green">1007</FONT> }<a name="line.1007"></a> |
| <FONT color="green">1008</FONT> <a name="line.1008"></a> |
| <FONT color="green">1009</FONT> /**<a name="line.1009"></a> |
| <FONT color="green">1010</FONT> * Compile a built-in XPath function.<a name="line.1010"></a> |
| <FONT color="green">1011</FONT> * <a name="line.1011"></a> |
| <FONT color="green">1012</FONT> * @param opPos The current position in the m_opMap array.<a name="line.1012"></a> |
| <FONT color="green">1013</FONT> *<a name="line.1013"></a> |
| <FONT color="green">1014</FONT> * @return reference to {@link org.apache.xpath.functions.Function} instance.<a name="line.1014"></a> |
| <FONT color="green">1015</FONT> *<a name="line.1015"></a> |
| <FONT color="green">1016</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.1016"></a> |
| <FONT color="green">1017</FONT> */<a name="line.1017"></a> |
| <FONT color="green">1018</FONT> Expression compileFunction(int opPos) throws TransformerException<a name="line.1018"></a> |
| <FONT color="green">1019</FONT> {<a name="line.1019"></a> |
| <FONT color="green">1020</FONT> <a name="line.1020"></a> |
| <FONT color="green">1021</FONT> int endFunc = opPos + getOp(opPos + 1) - 1;<a name="line.1021"></a> |
| <FONT color="green">1022</FONT> <a name="line.1022"></a> |
| <FONT color="green">1023</FONT> opPos = getFirstChildPos(opPos);<a name="line.1023"></a> |
| <FONT color="green">1024</FONT> <a name="line.1024"></a> |
| <FONT color="green">1025</FONT> int funcID = getOp(opPos);<a name="line.1025"></a> |
| <FONT color="green">1026</FONT> <a name="line.1026"></a> |
| <FONT color="green">1027</FONT> opPos++;<a name="line.1027"></a> |
| <FONT color="green">1028</FONT> <a name="line.1028"></a> |
| <FONT color="green">1029</FONT> if (-1 != funcID)<a name="line.1029"></a> |
| <FONT color="green">1030</FONT> {<a name="line.1030"></a> |
| <FONT color="green">1031</FONT> Function func = m_functionTable.getFunction(funcID);<a name="line.1031"></a> |
| <FONT color="green">1032</FONT> <a name="line.1032"></a> |
| <FONT color="green">1033</FONT> /**<a name="line.1033"></a> |
| <FONT color="green">1034</FONT> * It is a trick for function-available. Since the function table is an<a name="line.1034"></a> |
| <FONT color="green">1035</FONT> * instance field, insert this table at compilation time for later usage<a name="line.1035"></a> |
| <FONT color="green">1036</FONT> */<a name="line.1036"></a> |
| <FONT color="green">1037</FONT> <a name="line.1037"></a> |
| <FONT color="green">1038</FONT> if (func instanceof FuncExtFunctionAvailable)<a name="line.1038"></a> |
| <FONT color="green">1039</FONT> ((FuncExtFunctionAvailable) func).setFunctionTable(m_functionTable);<a name="line.1039"></a> |
| <FONT color="green">1040</FONT> <a name="line.1040"></a> |
| <FONT color="green">1041</FONT> func.postCompileStep(this);<a name="line.1041"></a> |
| <FONT color="green">1042</FONT> <a name="line.1042"></a> |
| <FONT color="green">1043</FONT> try<a name="line.1043"></a> |
| <FONT color="green">1044</FONT> {<a name="line.1044"></a> |
| <FONT color="green">1045</FONT> int i = 0;<a name="line.1045"></a> |
| <FONT color="green">1046</FONT> <a name="line.1046"></a> |
| <FONT color="green">1047</FONT> for (int p = opPos; p < endFunc; p = getNextOpPos(p), i++)<a name="line.1047"></a> |
| <FONT color="green">1048</FONT> {<a name="line.1048"></a> |
| <FONT color="green">1049</FONT> <a name="line.1049"></a> |
| <FONT color="green">1050</FONT> // System.out.println("argPos: "+ p);<a name="line.1050"></a> |
| <FONT color="green">1051</FONT> // System.out.println("argCode: "+ m_opMap[p]);<a name="line.1051"></a> |
| <FONT color="green">1052</FONT> func.setArg(compile(p), i);<a name="line.1052"></a> |
| <FONT color="green">1053</FONT> }<a name="line.1053"></a> |
| <FONT color="green">1054</FONT> <a name="line.1054"></a> |
| <FONT color="green">1055</FONT> func.checkNumberArgs(i);<a name="line.1055"></a> |
| <FONT color="green">1056</FONT> }<a name="line.1056"></a> |
| <FONT color="green">1057</FONT> catch (WrongNumberArgsException wnae)<a name="line.1057"></a> |
| <FONT color="green">1058</FONT> {<a name="line.1058"></a> |
| <FONT color="green">1059</FONT> java.lang.String name = m_functionTable.getFunctionName(funcID);<a name="line.1059"></a> |
| <FONT color="green">1060</FONT> <a name="line.1060"></a> |
| <FONT color="green">1061</FONT> m_errorHandler.fatalError( new TransformerException(<a name="line.1061"></a> |
| <FONT color="green">1062</FONT> XSLMessages.createXPATHMessage(XPATHErrorResources.ER_ONLY_ALLOWS, <a name="line.1062"></a> |
| <FONT color="green">1063</FONT> new Object[]{name, wnae.getMessage()}), m_locator)); <a name="line.1063"></a> |
| <FONT color="green">1064</FONT> //"name + " only allows " + wnae.getMessage() + " arguments", m_locator));<a name="line.1064"></a> |
| <FONT color="green">1065</FONT> }<a name="line.1065"></a> |
| <FONT color="green">1066</FONT> <a name="line.1066"></a> |
| <FONT color="green">1067</FONT> return func;<a name="line.1067"></a> |
| <FONT color="green">1068</FONT> }<a name="line.1068"></a> |
| <FONT color="green">1069</FONT> else<a name="line.1069"></a> |
| <FONT color="green">1070</FONT> {<a name="line.1070"></a> |
| <FONT color="green">1071</FONT> error(XPATHErrorResources.ER_FUNCTION_TOKEN_NOT_FOUND, null); //"function token not found.");<a name="line.1071"></a> |
| <FONT color="green">1072</FONT> <a name="line.1072"></a> |
| <FONT color="green">1073</FONT> return null;<a name="line.1073"></a> |
| <FONT color="green">1074</FONT> }<a name="line.1074"></a> |
| <FONT color="green">1075</FONT> }<a name="line.1075"></a> |
| <FONT color="green">1076</FONT> <a name="line.1076"></a> |
| <FONT color="green">1077</FONT> // The current id for extension functions.<a name="line.1077"></a> |
| <FONT color="green">1078</FONT> private static long s_nextMethodId = 0;<a name="line.1078"></a> |
| <FONT color="green">1079</FONT> <a name="line.1079"></a> |
| <FONT color="green">1080</FONT> /**<a name="line.1080"></a> |
| <FONT color="green">1081</FONT> * Get the next available method id<a name="line.1081"></a> |
| <FONT color="green">1082</FONT> */<a name="line.1082"></a> |
| <FONT color="green">1083</FONT> synchronized private long getNextMethodId()<a name="line.1083"></a> |
| <FONT color="green">1084</FONT> {<a name="line.1084"></a> |
| <FONT color="green">1085</FONT> if (s_nextMethodId == Long.MAX_VALUE)<a name="line.1085"></a> |
| <FONT color="green">1086</FONT> s_nextMethodId = 0;<a name="line.1086"></a> |
| <FONT color="green">1087</FONT> <a name="line.1087"></a> |
| <FONT color="green">1088</FONT> return s_nextMethodId++;<a name="line.1088"></a> |
| <FONT color="green">1089</FONT> }<a name="line.1089"></a> |
| <FONT color="green">1090</FONT> <a name="line.1090"></a> |
| <FONT color="green">1091</FONT> /**<a name="line.1091"></a> |
| <FONT color="green">1092</FONT> * Compile an extension function.<a name="line.1092"></a> |
| <FONT color="green">1093</FONT> * <a name="line.1093"></a> |
| <FONT color="green">1094</FONT> * @param opPos The current position in the m_opMap array.<a name="line.1094"></a> |
| <FONT color="green">1095</FONT> *<a name="line.1095"></a> |
| <FONT color="green">1096</FONT> * @return reference to {@link org.apache.xpath.functions.FuncExtFunction} instance.<a name="line.1096"></a> |
| <FONT color="green">1097</FONT> *<a name="line.1097"></a> |
| <FONT color="green">1098</FONT> * @throws TransformerException if a error occurs creating the Expression.<a name="line.1098"></a> |
| <FONT color="green">1099</FONT> */<a name="line.1099"></a> |
| <FONT color="green">1100</FONT> private Expression compileExtension(int opPos)<a name="line.1100"></a> |
| <FONT color="green">1101</FONT> throws TransformerException<a name="line.1101"></a> |
| <FONT color="green">1102</FONT> {<a name="line.1102"></a> |
| <FONT color="green">1103</FONT> <a name="line.1103"></a> |
| <FONT color="green">1104</FONT> int endExtFunc = opPos + getOp(opPos + 1) - 1;<a name="line.1104"></a> |
| <FONT color="green">1105</FONT> <a name="line.1105"></a> |
| <FONT color="green">1106</FONT> opPos = getFirstChildPos(opPos);<a name="line.1106"></a> |
| <FONT color="green">1107</FONT> <a name="line.1107"></a> |
| <FONT color="green">1108</FONT> java.lang.String ns = (java.lang.String) getTokenQueue().elementAt(getOp(opPos));<a name="line.1108"></a> |
| <FONT color="green">1109</FONT> <a name="line.1109"></a> |
| <FONT color="green">1110</FONT> opPos++;<a name="line.1110"></a> |
| <FONT color="green">1111</FONT> <a name="line.1111"></a> |
| <FONT color="green">1112</FONT> java.lang.String funcName =<a name="line.1112"></a> |
| <FONT color="green">1113</FONT> (java.lang.String) getTokenQueue().elementAt(getOp(opPos));<a name="line.1113"></a> |
| <FONT color="green">1114</FONT> <a name="line.1114"></a> |
| <FONT color="green">1115</FONT> opPos++;<a name="line.1115"></a> |
| <FONT color="green">1116</FONT> <a name="line.1116"></a> |
| <FONT color="green">1117</FONT> // We create a method key to uniquely identify this function so that we<a name="line.1117"></a> |
| <FONT color="green">1118</FONT> // can cache the object needed to invoke it. This way, we only pay the<a name="line.1118"></a> |
| <FONT color="green">1119</FONT> // reflection overhead on the first call.<a name="line.1119"></a> |
| <FONT color="green">1120</FONT> <a name="line.1120"></a> |
| <FONT color="green">1121</FONT> Function extension = new FuncExtFunction(ns, funcName, String.valueOf(getNextMethodId()));<a name="line.1121"></a> |
| <FONT color="green">1122</FONT> <a name="line.1122"></a> |
| <FONT color="green">1123</FONT> try<a name="line.1123"></a> |
| <FONT color="green">1124</FONT> {<a name="line.1124"></a> |
| <FONT color="green">1125</FONT> int i = 0;<a name="line.1125"></a> |
| <FONT color="green">1126</FONT> <a name="line.1126"></a> |
| <FONT color="green">1127</FONT> while (opPos < endExtFunc)<a name="line.1127"></a> |
| <FONT color="green">1128</FONT> {<a name="line.1128"></a> |
| <FONT color="green">1129</FONT> int nextOpPos = getNextOpPos(opPos);<a name="line.1129"></a> |
| <FONT color="green">1130</FONT> <a name="line.1130"></a> |
| <FONT color="green">1131</FONT> extension.setArg(this.compile(opPos), i);<a name="line.1131"></a> |
| <FONT color="green">1132</FONT> <a name="line.1132"></a> |
| <FONT color="green">1133</FONT> opPos = nextOpPos;<a name="line.1133"></a> |
| <FONT color="green">1134</FONT> <a name="line.1134"></a> |
| <FONT color="green">1135</FONT> i++;<a name="line.1135"></a> |
| <FONT color="green">1136</FONT> }<a name="line.1136"></a> |
| <FONT color="green">1137</FONT> }<a name="line.1137"></a> |
| <FONT color="green">1138</FONT> catch (WrongNumberArgsException wnae)<a name="line.1138"></a> |
| <FONT color="green">1139</FONT> {<a name="line.1139"></a> |
| <FONT color="green">1140</FONT> ; // should never happen<a name="line.1140"></a> |
| <FONT color="green">1141</FONT> }<a name="line.1141"></a> |
| <FONT color="green">1142</FONT> <a name="line.1142"></a> |
| <FONT color="green">1143</FONT> return extension;<a name="line.1143"></a> |
| <FONT color="green">1144</FONT> }<a name="line.1144"></a> |
| <FONT color="green">1145</FONT> <a name="line.1145"></a> |
| <FONT color="green">1146</FONT> /**<a name="line.1146"></a> |
| <FONT color="green">1147</FONT> * Warn the user of an problem.<a name="line.1147"></a> |
| <FONT color="green">1148</FONT> *<a name="line.1148"></a> |
| <FONT color="green">1149</FONT> * @param msg An error msgkey that corresponds to one of the constants found <a name="line.1149"></a> |
| <FONT color="green">1150</FONT> * in {@link org.apache.xpath.res.XPATHErrorResources}, which is <a name="line.1150"></a> |
| <FONT color="green">1151</FONT> * a key for a format string.<a name="line.1151"></a> |
| <FONT color="green">1152</FONT> * @param args An array of arguments represented in the format string, which <a name="line.1152"></a> |
| <FONT color="green">1153</FONT> * may be null.<a name="line.1153"></a> |
| <FONT color="green">1154</FONT> *<a name="line.1154"></a> |
| <FONT color="green">1155</FONT> * @throws TransformerException if the current ErrorListoner determines to <a name="line.1155"></a> |
| <FONT color="green">1156</FONT> * throw an exception.<a name="line.1156"></a> |
| <FONT color="green">1157</FONT> */<a name="line.1157"></a> |
| <FONT color="green">1158</FONT> public void warn(String msg, Object[] args) throws TransformerException<a name="line.1158"></a> |
| <FONT color="green">1159</FONT> {<a name="line.1159"></a> |
| <FONT color="green">1160</FONT> <a name="line.1160"></a> |
| <FONT color="green">1161</FONT> java.lang.String fmsg = XSLMessages.createXPATHWarning(msg, args);<a name="line.1161"></a> |
| <FONT color="green">1162</FONT> <a name="line.1162"></a> |
| <FONT color="green">1163</FONT> if (null != m_errorHandler)<a name="line.1163"></a> |
| <FONT color="green">1164</FONT> {<a name="line.1164"></a> |
| <FONT color="green">1165</FONT> m_errorHandler.warning(new TransformerException(fmsg, m_locator));<a name="line.1165"></a> |
| <FONT color="green">1166</FONT> }<a name="line.1166"></a> |
| <FONT color="green">1167</FONT> else<a name="line.1167"></a> |
| <FONT color="green">1168</FONT> {<a name="line.1168"></a> |
| <FONT color="green">1169</FONT> System.out.println(fmsg<a name="line.1169"></a> |
| <FONT color="green">1170</FONT> +"; file "+m_locator.getSystemId()<a name="line.1170"></a> |
| <FONT color="green">1171</FONT> +"; line "+m_locator.getLineNumber()<a name="line.1171"></a> |
| <FONT color="green">1172</FONT> +"; column "+m_locator.getColumnNumber());<a name="line.1172"></a> |
| <FONT color="green">1173</FONT> }<a name="line.1173"></a> |
| <FONT color="green">1174</FONT> }<a name="line.1174"></a> |
| <FONT color="green">1175</FONT> <a name="line.1175"></a> |
| <FONT color="green">1176</FONT> /**<a name="line.1176"></a> |
| <FONT color="green">1177</FONT> * Tell the user of an assertion error, and probably throw an<a name="line.1177"></a> |
| <FONT color="green">1178</FONT> * exception.<a name="line.1178"></a> |
| <FONT color="green">1179</FONT> *<a name="line.1179"></a> |
| <FONT color="green">1180</FONT> * @param b If false, a runtime exception will be thrown.<a name="line.1180"></a> |
| <FONT color="green">1181</FONT> * @param msg The assertion message, which should be informative.<a name="line.1181"></a> |
| <FONT color="green">1182</FONT> * <a name="line.1182"></a> |
| <FONT color="green">1183</FONT> * @throws RuntimeException if the b argument is false.<a name="line.1183"></a> |
| <FONT color="green">1184</FONT> */<a name="line.1184"></a> |
| <FONT color="green">1185</FONT> public void assertion(boolean b, java.lang.String msg)<a name="line.1185"></a> |
| <FONT color="green">1186</FONT> {<a name="line.1186"></a> |
| <FONT color="green">1187</FONT> <a name="line.1187"></a> |
| <FONT color="green">1188</FONT> if (!b)<a name="line.1188"></a> |
| <FONT color="green">1189</FONT> {<a name="line.1189"></a> |
| <FONT color="green">1190</FONT> java.lang.String fMsg = XSLMessages.createXPATHMessage(<a name="line.1190"></a> |
| <FONT color="green">1191</FONT> XPATHErrorResources.ER_INCORRECT_PROGRAMMER_ASSERTION,<a name="line.1191"></a> |
| <FONT color="green">1192</FONT> new Object[]{ msg });<a name="line.1192"></a> |
| <FONT color="green">1193</FONT> <a name="line.1193"></a> |
| <FONT color="green">1194</FONT> throw new RuntimeException(fMsg);<a name="line.1194"></a> |
| <FONT color="green">1195</FONT> }<a name="line.1195"></a> |
| <FONT color="green">1196</FONT> }<a name="line.1196"></a> |
| <FONT color="green">1197</FONT> <a name="line.1197"></a> |
| <FONT color="green">1198</FONT> /**<a name="line.1198"></a> |
| <FONT color="green">1199</FONT> * Tell the user of an error, and probably throw an<a name="line.1199"></a> |
| <FONT color="green">1200</FONT> * exception.<a name="line.1200"></a> |
| <FONT color="green">1201</FONT> *<a name="line.1201"></a> |
| <FONT color="green">1202</FONT> * @param msg An error msgkey that corresponds to one of the constants found <a name="line.1202"></a> |
| <FONT color="green">1203</FONT> * in {@link org.apache.xpath.res.XPATHErrorResources}, which is <a name="line.1203"></a> |
| <FONT color="green">1204</FONT> * a key for a format string.<a name="line.1204"></a> |
| <FONT color="green">1205</FONT> * @param args An array of arguments represented in the format string, which <a name="line.1205"></a> |
| <FONT color="green">1206</FONT> * may be null.<a name="line.1206"></a> |
| <FONT color="green">1207</FONT> *<a name="line.1207"></a> |
| <FONT color="green">1208</FONT> * @throws TransformerException if the current ErrorListoner determines to <a name="line.1208"></a> |
| <FONT color="green">1209</FONT> * throw an exception.<a name="line.1209"></a> |
| <FONT color="green">1210</FONT> */<a name="line.1210"></a> |
| <FONT color="green">1211</FONT> public void error(String msg, Object[] args) throws TransformerException<a name="line.1211"></a> |
| <FONT color="green">1212</FONT> {<a name="line.1212"></a> |
| <FONT color="green">1213</FONT> <a name="line.1213"></a> |
| <FONT color="green">1214</FONT> java.lang.String fmsg = XSLMessages.createXPATHMessage(msg, args);<a name="line.1214"></a> |
| <FONT color="green">1215</FONT> <a name="line.1215"></a> |
| <FONT color="green">1216</FONT> <a name="line.1216"></a> |
| <FONT color="green">1217</FONT> if (null != m_errorHandler)<a name="line.1217"></a> |
| <FONT color="green">1218</FONT> {<a name="line.1218"></a> |
| <FONT color="green">1219</FONT> m_errorHandler.fatalError(new TransformerException(fmsg, m_locator));<a name="line.1219"></a> |
| <FONT color="green">1220</FONT> }<a name="line.1220"></a> |
| <FONT color="green">1221</FONT> else<a name="line.1221"></a> |
| <FONT color="green">1222</FONT> {<a name="line.1222"></a> |
| <FONT color="green">1223</FONT> <a name="line.1223"></a> |
| <FONT color="green">1224</FONT> // System.out.println(te.getMessage()<a name="line.1224"></a> |
| <FONT color="green">1225</FONT> // +"; file "+te.getSystemId()<a name="line.1225"></a> |
| <FONT color="green">1226</FONT> // +"; line "+te.getLineNumber()<a name="line.1226"></a> |
| <FONT color="green">1227</FONT> // +"; column "+te.getColumnNumber());<a name="line.1227"></a> |
| <FONT color="green">1228</FONT> throw new TransformerException(fmsg, (SAXSourceLocator)m_locator);<a name="line.1228"></a> |
| <FONT color="green">1229</FONT> }<a name="line.1229"></a> |
| <FONT color="green">1230</FONT> }<a name="line.1230"></a> |
| <FONT color="green">1231</FONT> <a name="line.1231"></a> |
| <FONT color="green">1232</FONT> /**<a name="line.1232"></a> |
| <FONT color="green">1233</FONT> * The current prefixResolver for the execution context.<a name="line.1233"></a> |
| <FONT color="green">1234</FONT> */<a name="line.1234"></a> |
| <FONT color="green">1235</FONT> private PrefixResolver m_currentPrefixResolver = null;<a name="line.1235"></a> |
| <FONT color="green">1236</FONT> <a name="line.1236"></a> |
| <FONT color="green">1237</FONT> /**<a name="line.1237"></a> |
| <FONT color="green">1238</FONT> * Get the current namespace context for the xpath.<a name="line.1238"></a> |
| <FONT color="green">1239</FONT> *<a name="line.1239"></a> |
| <FONT color="green">1240</FONT> * @return The current prefix resolver, *may* be null, though hopefully not.<a name="line.1240"></a> |
| <FONT color="green">1241</FONT> */<a name="line.1241"></a> |
| <FONT color="green">1242</FONT> public PrefixResolver getNamespaceContext()<a name="line.1242"></a> |
| <FONT color="green">1243</FONT> {<a name="line.1243"></a> |
| <FONT color="green">1244</FONT> return m_currentPrefixResolver;<a name="line.1244"></a> |
| <FONT color="green">1245</FONT> }<a name="line.1245"></a> |
| <FONT color="green">1246</FONT> <a name="line.1246"></a> |
| <FONT color="green">1247</FONT> /**<a name="line.1247"></a> |
| <FONT color="green">1248</FONT> * Set the current namespace context for the xpath.<a name="line.1248"></a> |
| <FONT color="green">1249</FONT> *<a name="line.1249"></a> |
| <FONT color="green">1250</FONT> * @param pr The resolver for prefixes in the XPath expression.<a name="line.1250"></a> |
| <FONT color="green">1251</FONT> */<a name="line.1251"></a> |
| <FONT color="green">1252</FONT> public void setNamespaceContext(PrefixResolver pr)<a name="line.1252"></a> |
| <FONT color="green">1253</FONT> {<a name="line.1253"></a> |
| <FONT color="green">1254</FONT> m_currentPrefixResolver = pr;<a name="line.1254"></a> |
| <FONT color="green">1255</FONT> }<a name="line.1255"></a> |
| <FONT color="green">1256</FONT> <a name="line.1256"></a> |
| <FONT color="green">1257</FONT> /** The error listener where errors will be sent. If this is null, errors <a name="line.1257"></a> |
| <FONT color="green">1258</FONT> * and warnings will be sent to System.err. May be null. */<a name="line.1258"></a> |
| <FONT color="green">1259</FONT> ErrorListener m_errorHandler;<a name="line.1259"></a> |
| <FONT color="green">1260</FONT> <a name="line.1260"></a> |
| <FONT color="green">1261</FONT> /** The source locator for the expression being compiled. May be null. */<a name="line.1261"></a> |
| <FONT color="green">1262</FONT> SourceLocator m_locator;<a name="line.1262"></a> |
| <FONT color="green">1263</FONT> <a name="line.1263"></a> |
| <FONT color="green">1264</FONT> /**<a name="line.1264"></a> |
| <FONT color="green">1265</FONT> * The FunctionTable for all xpath build-in functions<a name="line.1265"></a> |
| <FONT color="green">1266</FONT> */<a name="line.1266"></a> |
| <FONT color="green">1267</FONT> private FunctionTable m_functionTable;<a name="line.1267"></a> |
| <FONT color="green">1268</FONT> }<a name="line.1268"></a> |
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