| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
| <head> |
| <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /> |
| <title>ASTStringLiteral xref</title> |
| <link type="text/css" rel="stylesheet" href="../../../../../../stylesheet.css" /> |
| </head> |
| <body> |
| <div id="overview"><a href="../../../../../../../apidocs/org/apache/velocity/runtime/parser/node/ASTStringLiteral.html">View Javadoc</a></div><pre> |
|
|
| <a name="1" href="#1">1</a> <strong class="jxr_keyword">package</strong> org.apache.velocity.runtime.parser.node;
|
| <a name="2" href="#2">2</a>
|
| <a name="3" href="#3">3</a> <em class="jxr_comment">/*</em>
|
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em>
|
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * contributor license agreements. See the NOTICE file distributed with this</em>
|
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * work for additional information regarding copyright ownership. The ASF</em>
|
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * licenses this file to you under the Apache License, Version 2.0 (the</em>
|
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance with the License.</em>
|
| <a name="9" href="#9">9</a> <em class="jxr_comment"> * You may obtain a copy of the License at</em>
|
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * </em>
|
| <a name="11" href="#11">11</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
|
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * </em>
|
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
|
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
|
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</em>
|
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * License for the specific language governing permissions and limitations under</em>
|
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * the License.</em>
|
| <a name="18" href="#18">18</a> <em class="jxr_comment"> */</em>
|
| <a name="19" href="#19">19</a>
|
| <a name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
|
| <a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.io.StringReader;
|
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.io.StringWriter;
|
| <a name="23" href="#23">23</a>
|
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.commons.lang.text.StrBuilder;
|
| <a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.context.InternalContextAdapter;
|
| <a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.MethodInvocationException;
|
| <a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.ParseErrorException;
|
| <a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.ResourceNotFoundException;
|
| <a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.TemplateInitException;
|
| <a name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.exception.VelocityException;
|
| <a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.RuntimeConstants;
|
| <a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.log.Log;
|
| <a name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.ParseException;
|
| <a name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.Parser;
|
| <a name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.parser.Token;
|
| <a name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> org.apache.velocity.runtime.visitor.BaseVisitor;
|
| <a name="37" href="#37">37</a>
|
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * ASTStringLiteral support. Will interpolate!</em>
|
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * </em>
|
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:geirm@optonline.net" target="alexandria_uri">mailto:geirm@optonline.net</a>">Geir Magnusson Jr.</a></em>
|
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="mailto:jvanzyl@apache.org" target="alexandria_uri">mailto:jvanzyl@apache.org</a>">Jason van Zyl</a></em>
|
| <a name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * @version $Id: ASTStringLiteral.java 705297 2008-10-16 17:59:24Z nbubna $</em>
|
| <a name="44" href="#44">44</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="45" href="#45">45</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTStringLiteral.html">ASTStringLiteral</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/SimpleNode.html">SimpleNode</a>
|
| <a name="46" href="#46">46</a> {
|
| <a name="47" href="#47">47</a> <em class="jxr_comment">/*<em class="jxr_comment"> cache the value of the interpolation switch */</em></em>
|
| <a name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> interpolate = <strong class="jxr_keyword">true</strong>;
|
| <a name="49" href="#49">49</a>
|
| <a name="50" href="#50">50</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/SimpleNode.html">SimpleNode</a> nodeTree = <strong class="jxr_keyword">null</strong>;
|
| <a name="51" href="#51">51</a>
|
| <a name="52" href="#52">52</a> <strong class="jxr_keyword">private</strong> String image = <span class="jxr_string">""</span>;
|
| <a name="53" href="#53">53</a>
|
| <a name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> String interpolateimage = <span class="jxr_string">""</span>;
|
| <a name="55" href="#55">55</a>
|
| <a name="56" href="#56">56</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> true if the string contains a line comment (##) */</em>
|
| <a name="57" href="#57">57</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> containsLineComment;
|
| <a name="58" href="#58">58</a>
|
| <a name="59" href="#59">59</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> * @param id</em>
|
| <a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="62" href="#62">62</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTStringLiteral.html">ASTStringLiteral</a>(<strong class="jxr_keyword">int</strong> id)
|
| <a name="63" href="#63">63</a> {
|
| <a name="64" href="#64">64</a> <strong class="jxr_keyword">super</strong>(id);
|
| <a name="65" href="#65">65</a> }
|
| <a name="66" href="#66">66</a>
|
| <a name="67" href="#67">67</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * @param p</em>
|
| <a name="69" href="#69">69</a> <em class="jxr_javadoccomment"> * @param id</em>
|
| <a name="70" href="#70">70</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="71" href="#71">71</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/apache/velocity/runtime/parser/node/ASTStringLiteral.html">ASTStringLiteral</a>(<a href="../../../../../../org/apache/velocity/runtime/parser/Parser.html">Parser</a> p, <strong class="jxr_keyword">int</strong> id)
|
| <a name="72" href="#72">72</a> {
|
| <a name="73" href="#73">73</a> <strong class="jxr_keyword">super</strong>(p, id);
|
| <a name="74" href="#74">74</a> }
|
| <a name="75" href="#75">75</a>
|
| <a name="76" href="#76">76</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> * init : we don't have to do much. Init the tree (there shouldn't be one)</em>
|
| <a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * and then see if interpolation is turned on.</em>
|
| <a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> * </em>
|
| <a name="80" href="#80">80</a> <em class="jxr_javadoccomment"> * @param context</em>
|
| <a name="81" href="#81">81</a> <em class="jxr_javadoccomment"> * @param data</em>
|
| <a name="82" href="#82">82</a> <em class="jxr_javadoccomment"> * @return Init result.</em>
|
| <a name="83" href="#83">83</a> <em class="jxr_javadoccomment"> * @throws TemplateInitException</em>
|
| <a name="84" href="#84">84</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="85" href="#85">85</a> <strong class="jxr_keyword">public</strong> Object init(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context, Object data)
|
| <a name="86" href="#86">86</a> <strong class="jxr_keyword">throws</strong> <a href="../../../../../../org/apache/velocity/exception/TemplateInitException.html">TemplateInitException</a>
|
| <a name="87" href="#87">87</a> {
|
| <a name="88" href="#88">88</a> <em class="jxr_comment">/*</em>
|
| <a name="89" href="#89">89</a> <em class="jxr_comment"> * simple habit... we prollie don't have an AST beneath us</em>
|
| <a name="90" href="#90">90</a> <em class="jxr_comment"> */</em>
|
| <a name="91" href="#91">91</a>
|
| <a name="92" href="#92">92</a> <strong class="jxr_keyword">super</strong>.init(context, data);
|
| <a name="93" href="#93">93</a>
|
| <a name="94" href="#94">94</a> <em class="jxr_comment">/*</em>
|
| <a name="95" href="#95">95</a> <em class="jxr_comment"> * the stringlit is set at template parse time, so we can do this here</em>
|
| <a name="96" href="#96">96</a> <em class="jxr_comment"> * for now. if things change and we can somehow create stringlits at</em>
|
| <a name="97" href="#97">97</a> <em class="jxr_comment"> * runtime, this must move to the runtime execution path</em>
|
| <a name="98" href="#98">98</a> <em class="jxr_comment"> * </em>
|
| <a name="99" href="#99">99</a> <em class="jxr_comment"> * so, only if interpolation is turned on AND it starts with a " AND it</em>
|
| <a name="100" href="#100">100</a> <em class="jxr_comment"> * has a directive or reference, then we can interpolate. Otherwise,</em>
|
| <a name="101" href="#101">101</a> <em class="jxr_comment"> * don't bother.</em>
|
| <a name="102" href="#102">102</a> <em class="jxr_comment"> */</em>
|
| <a name="103" href="#103">103</a>
|
| <a name="104" href="#104">104</a> interpolate = rsvc.getBoolean(
|
| <a name="105" href="#105">105</a> RuntimeConstants.INTERPOLATE_STRINGLITERALS, <strong class="jxr_keyword">true</strong>)
|
| <a name="106" href="#106">106</a> && getFirstToken().image.startsWith(<span class="jxr_string">"\""</span>)
|
| <a name="107" href="#107">107</a> && ((getFirstToken().image.indexOf('$') != -1) || (getFirstToken().image
|
| <a name="108" href="#108">108</a> .indexOf('#') != -1));
|
| <a name="109" href="#109">109</a>
|
| <a name="110" href="#110">110</a> <em class="jxr_comment">/*</em>
|
| <a name="111" href="#111">111</a> <em class="jxr_comment"> * get the contents of the string, minus the '/" at each end</em>
|
| <a name="112" href="#112">112</a> <em class="jxr_comment"> */</em>
|
| <a name="113" href="#113">113</a>
|
| <a name="114" href="#114">114</a> image = getFirstToken().image.substring(1, getFirstToken().image
|
| <a name="115" href="#115">115</a> .length() - 1);
|
| <a name="116" href="#116">116</a> <strong class="jxr_keyword">if</strong> (getFirstToken().image.startsWith(<span class="jxr_string">"\""</span>))
|
| <a name="117" href="#117">117</a> {
|
| <a name="118" href="#118">118</a> image = unescape(image);
|
| <a name="119" href="#119">119</a> }
|
| <a name="120" href="#120">120</a>
|
| <a name="121" href="#121">121</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="122" href="#122">122</a> <em class="jxr_javadoccomment"> * note. A kludge on a kludge. The first part, Geir calls this the</em>
|
| <a name="123" href="#123">123</a> <em class="jxr_javadoccomment"> * dreaded <MORE> kludge. Basically, the use of the <MORE> token eats</em>
|
| <a name="124" href="#124">124</a> <em class="jxr_javadoccomment"> * the last character of an interpolated string. EXCEPT when a line</em>
|
| <a name="125" href="#125">125</a> <em class="jxr_javadoccomment"> * comment (##) is in the string this isn't an issue.</em>
|
| <a name="126" href="#126">126</a> <em class="jxr_javadoccomment"> * </em>
|
| <a name="127" href="#127">127</a> <em class="jxr_javadoccomment"> * So, to solve this we look for a line comment. If it isn't found we</em>
|
| <a name="128" href="#128">128</a> <em class="jxr_javadoccomment"> * add a space here and remove it later.</em>
|
| <a name="129" href="#129">129</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="130" href="#130">130</a>
|
| <a name="131" href="#131">131</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="132" href="#132">132</a> <em class="jxr_javadoccomment"> * Note - this should really use a regexp to look for [^\]## but</em>
|
| <a name="133" href="#133">133</a> <em class="jxr_javadoccomment"> * apparently escaping of line comments isn't working right now anyway.</em>
|
| <a name="134" href="#134">134</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="135" href="#135">135</a> containsLineComment = (image.indexOf(<span class="jxr_string">"##"</span>) != -1);
|
| <a name="136" href="#136">136</a>
|
| <a name="137" href="#137">137</a> <em class="jxr_comment">/*</em>
|
| <a name="138" href="#138">138</a> <em class="jxr_comment"> * if appropriate, tack a space on the end (dreaded <MORE> kludge)</em>
|
| <a name="139" href="#139">139</a> <em class="jxr_comment"> */</em>
|
| <a name="140" href="#140">140</a>
|
| <a name="141" href="#141">141</a> <strong class="jxr_keyword">if</strong> (!containsLineComment)
|
| <a name="142" href="#142">142</a> {
|
| <a name="143" href="#143">143</a> interpolateimage = image + <span class="jxr_string">" "</span>;
|
| <a name="144" href="#144">144</a> }
|
| <a name="145" href="#145">145</a> <strong class="jxr_keyword">else</strong>
|
| <a name="146" href="#146">146</a> {
|
| <a name="147" href="#147">147</a> interpolateimage = image;
|
| <a name="148" href="#148">148</a> }
|
| <a name="149" href="#149">149</a>
|
| <a name="150" href="#150">150</a> <strong class="jxr_keyword">if</strong> (interpolate)
|
| <a name="151" href="#151">151</a> {
|
| <a name="152" href="#152">152</a> <em class="jxr_comment">/*</em>
|
| <a name="153" href="#153">153</a> <em class="jxr_comment"> * now parse and init the nodeTree</em>
|
| <a name="154" href="#154">154</a> <em class="jxr_comment"> */</em>
|
| <a name="155" href="#155">155</a> StringReader br = <strong class="jxr_keyword">new</strong> StringReader(interpolateimage);
|
| <a name="156" href="#156">156</a>
|
| <a name="157" href="#157">157</a> <em class="jxr_comment">/*</em>
|
| <a name="158" href="#158">158</a> <em class="jxr_comment"> * it's possible to not have an initialization context - or we don't</em>
|
| <a name="159" href="#159">159</a> <em class="jxr_comment"> * want to trust the caller - so have a fallback value if so</em>
|
| <a name="160" href="#160">160</a> <em class="jxr_comment"> * </em>
|
| <a name="161" href="#161">161</a> <em class="jxr_comment"> * Also, do *not* dump the VM namespace for this template</em>
|
| <a name="162" href="#162">162</a> <em class="jxr_comment"> */</em>
|
| <a name="163" href="#163">163</a>
|
| <a name="164" href="#164">164</a> String templateName =
|
| <a name="165" href="#165">165</a> (context != <strong class="jxr_keyword">null</strong>) ? context.getCurrentTemplateName() : <span class="jxr_string">"StringLiteral"</span>;
|
| <a name="166" href="#166">166</a> <strong class="jxr_keyword">try</strong>
|
| <a name="167" href="#167">167</a> {
|
| <a name="168" href="#168">168</a> nodeTree = rsvc.parse(br, templateName, false);
|
| <a name="169" href="#169">169</a> }
|
| <a name="170" href="#170">170</a> <strong class="jxr_keyword">catch</strong> (ParseException e)
|
| <a name="171" href="#171">171</a> {
|
| <a name="172" href="#172">172</a> String msg = <span class="jxr_string">"Failed to parse String literal at "</span>+
|
| <a name="173" href="#173">173</a> Log.formatFileString(templateName, getLine(), getColumn());
|
| <a name="174" href="#174">174</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/velocity/exception/TemplateInitException.html">TemplateInitException</a>(msg, e, templateName, getColumn(), getLine());
|
| <a name="175" href="#175">175</a> }
|
| <a name="176" href="#176">176</a>
|
| <a name="177" href="#177">177</a> adjTokenLineNums(nodeTree);
|
| <a name="178" href="#178">178</a>
|
| <a name="179" href="#179">179</a> <em class="jxr_comment">/*</em>
|
| <a name="180" href="#180">180</a> <em class="jxr_comment"> * init with context. It won't modify anything</em>
|
| <a name="181" href="#181">181</a> <em class="jxr_comment"> */</em>
|
| <a name="182" href="#182">182</a>
|
| <a name="183" href="#183">183</a> nodeTree.init(context, rsvc);
|
| <a name="184" href="#184">184</a> }
|
| <a name="185" href="#185">185</a>
|
| <a name="186" href="#186">186</a> <strong class="jxr_keyword">return</strong> data;
|
| <a name="187" href="#187">187</a> }
|
| <a name="188" href="#188">188</a>
|
| <a name="189" href="#189">189</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="190" href="#190">190</a> <em class="jxr_javadoccomment"> * Adjust all the line and column numbers that comprise a node so that they</em>
|
| <a name="191" href="#191">191</a> <em class="jxr_javadoccomment"> * are corrected for the string literals position within the template file.</em>
|
| <a name="192" href="#192">192</a> <em class="jxr_javadoccomment"> * This is neccessary if an exception is thrown while processing the node so</em>
|
| <a name="193" href="#193">193</a> <em class="jxr_javadoccomment"> * that the line and column position reported reflects the error position</em>
|
| <a name="194" href="#194">194</a> <em class="jxr_javadoccomment"> * within the template and not just relative to the error position within</em>
|
| <a name="195" href="#195">195</a> <em class="jxr_javadoccomment"> * the string literal.</em>
|
| <a name="196" href="#196">196</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="197" href="#197">197</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> adjTokenLineNums(<a href="../../../../../../org/apache/velocity/runtime/parser/node/Node.html">Node</a> node)
|
| <a name="198" href="#198">198</a> {
|
| <a name="199" href="#199">199</a> <a href="../../../../../../org/apache/velocity/runtime/parser/Token.html">Token</a> tok = node.getFirstToken();
|
| <a name="200" href="#200">200</a> <em class="jxr_comment">// Test against null is probably not neccessary, but just being safe</em>
|
| <a name="201" href="#201">201</a> <strong class="jxr_keyword">while</strong>(tok != <strong class="jxr_keyword">null</strong> && tok != node.getLastToken())
|
| <a name="202" href="#202">202</a> {
|
| <a name="203" href="#203">203</a> <em class="jxr_comment">// If tok is on the first line, then the actual column is </em>
|
| <a name="204" href="#204">204</a> <em class="jxr_comment">// offset by the template column.</em>
|
| <a name="205" href="#205">205</a>
|
| <a name="206" href="#206">206</a> <strong class="jxr_keyword">if</strong> (tok.beginLine == 1)
|
| <a name="207" href="#207">207</a> tok.beginColumn += getColumn();
|
| <a name="208" href="#208">208</a>
|
| <a name="209" href="#209">209</a> <strong class="jxr_keyword">if</strong> (tok.endLine == 1)
|
| <a name="210" href="#210">210</a> tok.endColumn += getColumn();
|
| <a name="211" href="#211">211</a>
|
| <a name="212" href="#212">212</a> tok.beginLine += getLine()- 1;
|
| <a name="213" href="#213">213</a> tok.endLine += getLine() - 1;
|
| <a name="214" href="#214">214</a> tok = tok.next;
|
| <a name="215" href="#215">215</a> }
|
| <a name="216" href="#216">216</a> }
|
| <a name="217" href="#217">217</a>
|
| <a name="218" href="#218">218</a>
|
| <a name="219" href="#219">219</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="220" href="#220">220</a> <em class="jxr_javadoccomment"> * @since 1.6</em>
|
| <a name="221" href="#221">221</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="222" href="#222">222</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String unescape(<strong class="jxr_keyword">final</strong> String string)
|
| <a name="223" href="#223">223</a> {
|
| <a name="224" href="#224">224</a> <strong class="jxr_keyword">int</strong> u = string.indexOf(<span class="jxr_string">"\\u"</span>);
|
| <a name="225" href="#225">225</a> <strong class="jxr_keyword">if</strong> (u < 0) <strong class="jxr_keyword">return</strong> string;
|
| <a name="226" href="#226">226</a>
|
| <a name="227" href="#227">227</a> StrBuilder result = <strong class="jxr_keyword">new</strong> StrBuilder();
|
| <a name="228" href="#228">228</a>
|
| <a name="229" href="#229">229</a> <strong class="jxr_keyword">int</strong> lastCopied = 0;
|
| <a name="230" href="#230">230</a>
|
| <a name="231" href="#231">231</a> <strong class="jxr_keyword">for</strong> (;;)
|
| <a name="232" href="#232">232</a> {
|
| <a name="233" href="#233">233</a> result.append(string.substring(lastCopied, u));
|
| <a name="234" href="#234">234</a>
|
| <a name="235" href="#235">235</a> <em class="jxr_comment">/*<em class="jxr_comment"> we don't worry about an exception here,</em></em>
|
| <a name="236" href="#236">236</a> <em class="jxr_comment"> * because the lexer checked that string is correct */</em>
|
| <a name="237" href="#237">237</a> <strong class="jxr_keyword">char</strong> c = (<strong class="jxr_keyword">char</strong>) Integer.parseInt(string.substring(u + 2, u + 6), 16);
|
| <a name="238" href="#238">238</a> result.append(c);
|
| <a name="239" href="#239">239</a>
|
| <a name="240" href="#240">240</a> lastCopied = u + 6;
|
| <a name="241" href="#241">241</a>
|
| <a name="242" href="#242">242</a> u = string.indexOf(<span class="jxr_string">"\\u"</span>, lastCopied);
|
| <a name="243" href="#243">243</a> <strong class="jxr_keyword">if</strong> (u < 0)
|
| <a name="244" href="#244">244</a> {
|
| <a name="245" href="#245">245</a> result.append(string.substring(lastCopied));
|
| <a name="246" href="#246">246</a> <strong class="jxr_keyword">return</strong> result.toString();
|
| <a name="247" href="#247">247</a> }
|
| <a name="248" href="#248">248</a> }
|
| <a name="249" href="#249">249</a> }
|
| <a name="250" href="#250">250</a>
|
| <a name="251" href="#251">251</a>
|
| <a name="252" href="#252">252</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="253" href="#253">253</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.node.SimpleNode#jjtAccept(org.apache.velocity.runtime.parser.node.ParserVisitor,</em>
|
| <a name="254" href="#254">254</a> <em class="jxr_javadoccomment"> * java.lang.Object)</em>
|
| <a name="255" href="#255">255</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="256" href="#256">256</a> <strong class="jxr_keyword">public</strong> Object jjtAccept(<a href="../../../../../../org/apache/velocity/runtime/parser/node/ParserVisitor.html">ParserVisitor</a> visitor, Object data)
|
| <a name="257" href="#257">257</a> {
|
| <a name="258" href="#258">258</a> <strong class="jxr_keyword">return</strong> visitor.visit(<strong class="jxr_keyword">this</strong>, data);
|
| <a name="259" href="#259">259</a> }
|
| <a name="260" href="#260">260</a>
|
| <a name="261" href="#261">261</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="262" href="#262">262</a> <em class="jxr_javadoccomment"> * Check to see if this is an interpolated string.</em>
|
| <a name="263" href="#263">263</a> <em class="jxr_javadoccomment"> * @return true if this is constant (not an interpolated string)</em>
|
| <a name="264" href="#264">264</a> <em class="jxr_javadoccomment"> * @since 1.6</em>
|
| <a name="265" href="#265">265</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="266" href="#266">266</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isConstant()
|
| <a name="267" href="#267">267</a> {
|
| <a name="268" href="#268">268</a> <strong class="jxr_keyword">return</strong> !interpolate;
|
| <a name="269" href="#269">269</a> }
|
| <a name="270" href="#270">270</a>
|
| <a name="271" href="#271">271</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="272" href="#272">272</a> <em class="jxr_javadoccomment"> * renders the value of the string literal If the properties allow, and the</em>
|
| <a name="273" href="#273">273</a> <em class="jxr_javadoccomment"> * string literal contains a $ or a # the literal is rendered against the</em>
|
| <a name="274" href="#274">274</a> <em class="jxr_javadoccomment"> * context Otherwise, the stringlit is returned.</em>
|
| <a name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * </em>
|
| <a name="276" href="#276">276</a> <em class="jxr_javadoccomment"> * @param context</em>
|
| <a name="277" href="#277">277</a> <em class="jxr_javadoccomment"> * @return result of the rendering.</em>
|
| <a name="278" href="#278">278</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="279" href="#279">279</a> <strong class="jxr_keyword">public</strong> Object value(<a href="../../../../../../org/apache/velocity/context/InternalContextAdapter.html">InternalContextAdapter</a> context)
|
| <a name="280" href="#280">280</a> {
|
| <a name="281" href="#281">281</a> <strong class="jxr_keyword">if</strong> (interpolate)
|
| <a name="282" href="#282">282</a> {
|
| <a name="283" href="#283">283</a> <strong class="jxr_keyword">try</strong>
|
| <a name="284" href="#284">284</a> {
|
| <a name="285" href="#285">285</a> <em class="jxr_comment">/*</em>
|
| <a name="286" href="#286">286</a> <em class="jxr_comment"> * now render against the real context</em>
|
| <a name="287" href="#287">287</a> <em class="jxr_comment"> */</em>
|
| <a name="288" href="#288">288</a>
|
| <a name="289" href="#289">289</a> StringWriter writer = <strong class="jxr_keyword">new</strong> StringWriter();
|
| <a name="290" href="#290">290</a> nodeTree.render(context, writer);
|
| <a name="291" href="#291">291</a>
|
| <a name="292" href="#292">292</a> <em class="jxr_comment">/*</em>
|
| <a name="293" href="#293">293</a> <em class="jxr_comment"> * and return the result as a String</em>
|
| <a name="294" href="#294">294</a> <em class="jxr_comment"> */</em>
|
| <a name="295" href="#295">295</a>
|
| <a name="296" href="#296">296</a> String ret = writer.toString();
|
| <a name="297" href="#297">297</a>
|
| <a name="298" href="#298">298</a> <em class="jxr_comment">/*</em>
|
| <a name="299" href="#299">299</a> <em class="jxr_comment"> * if appropriate, remove the space from the end (dreaded <MORE></em>
|
| <a name="300" href="#300">300</a> <em class="jxr_comment"> * kludge part deux)</em>
|
| <a name="301" href="#301">301</a> <em class="jxr_comment"> */</em>
|
| <a name="302" href="#302">302</a> <strong class="jxr_keyword">if</strong> (!containsLineComment && ret.length() > 0)
|
| <a name="303" href="#303">303</a> {
|
| <a name="304" href="#304">304</a> <strong class="jxr_keyword">return</strong> ret.substring(0, ret.length() - 1);
|
| <a name="305" href="#305">305</a> }
|
| <a name="306" href="#306">306</a> <strong class="jxr_keyword">else</strong>
|
| <a name="307" href="#307">307</a> {
|
| <a name="308" href="#308">308</a> <strong class="jxr_keyword">return</strong> ret;
|
| <a name="309" href="#309">309</a> }
|
| <a name="310" href="#310">310</a> }
|
| <a name="311" href="#311">311</a>
|
| <a name="312" href="#312">312</a> <em class="jxr_javadoccomment">/**</em>
|
| <a name="313" href="#313">313</a> <em class="jxr_javadoccomment"> * pass through application level runtime exceptions</em>
|
| <a name="314" href="#314">314</a> <em class="jxr_javadoccomment"> */</em>
|
| <a name="315" href="#315">315</a> <strong class="jxr_keyword">catch</strong> (RuntimeException e)
|
| <a name="316" href="#316">316</a> {
|
| <a name="317" href="#317">317</a> <strong class="jxr_keyword">throw</strong> e;
|
| <a name="318" href="#318">318</a> }
|
| <a name="319" href="#319">319</a>
|
| <a name="320" href="#320">320</a> <strong class="jxr_keyword">catch</strong> (IOException e)
|
| <a name="321" href="#321">321</a> {
|
| <a name="322" href="#322">322</a> String msg = <span class="jxr_string">"Error in interpolating string literal"</span>;
|
| <a name="323" href="#323">323</a> log.error(msg, e);
|
| <a name="324" href="#324">324</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/apache/velocity/exception/VelocityException.html">VelocityException</a>(msg, e);
|
| <a name="325" href="#325">325</a> }
|
| <a name="326" href="#326">326</a>
|
| <a name="327" href="#327">327</a> }
|
| <a name="328" href="#328">328</a>
|
| <a name="329" href="#329">329</a> <em class="jxr_comment">/*</em>
|
| <a name="330" href="#330">330</a> <em class="jxr_comment"> * ok, either not allowed to interpolate, there wasn't a ref or</em>
|
| <a name="331" href="#331">331</a> <em class="jxr_comment"> * directive, or we failed, so just output the literal</em>
|
| <a name="332" href="#332">332</a> <em class="jxr_comment"> */</em>
|
| <a name="333" href="#333">333</a>
|
| <a name="334" href="#334">334</a> <strong class="jxr_keyword">return</strong> image;
|
| <a name="335" href="#335">335</a> }
|
| <a name="336" href="#336">336</a> }
|
| </pre> |
| <hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body> |
| </html> |
|
|
