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| <a name="1" href="#1">1</a> <strong class="jxr_keyword">package</strong> org.apache.velocity.runtime.parser; |
| <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</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</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="13" href="#13">13</a> <em class="jxr_comment"> *</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="19" href="#19">19</a> <em class="jxr_comment"> * under the License. </em> |
| <a name="20" href="#20">20</a> <em class="jxr_comment"> */</em> |
| <a name="21" href="#21">21</a> |
| <a name="22" href="#22">22</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="23" href="#23">23</a> <em class="jxr_javadoccomment"> * NOTE : This class was originally an ASCII_CharStream autogenerated</em> |
| <a name="24" href="#24">24</a> <em class="jxr_javadoccomment"> * by Javacc. It was then modified via changing class name with appropriate</em> |
| <a name="25" href="#25">25</a> <em class="jxr_javadoccomment"> * fixes for CTORS, and mods to readChar().</em> |
| <a name="26" href="#26">26</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * This is safe because we *always* use Reader with this class, and never a</em> |
| <a name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * InputStream. This guarantees that we have a correct stream of 16-bit</em> |
| <a name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * chars - all encoding transformations have been done elsewhere, so we</em> |
| <a name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * believe that there is no risk in doing this. Time will tell :)</em> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="32" href="#32">32</a> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> * An implementation of interface CharStream, where the stream is assumed to</em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * contain only ASCII characters (without unicode processing).</em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="37" href="#37">37</a> |
| <a name="38" href="#38">38</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/velocity/runtime/parser/VelocityCharStream.html">VelocityCharStream</a> |
| <a name="39" href="#39">39</a> implements <a href="../../../../../org/apache/velocity/runtime/parser/CharStream.html">CharStream</a> |
| <a name="40" href="#40">40</a> { |
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> */</em> |
| <a name="42" href="#42">42</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">boolean</strong> staticFlag = false; |
| <a name="43" href="#43">43</a> <strong class="jxr_keyword">int</strong> bufsize; |
| <a name="44" href="#44">44</a> <strong class="jxr_keyword">int</strong> available; |
| <a name="45" href="#45">45</a> <strong class="jxr_keyword">int</strong> tokenBegin; |
| <a name="46" href="#46">46</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> */</em> |
| <a name="47" href="#47">47</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> bufpos = -1; |
| <a name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> bufline[]; |
| <a name="49" href="#49">49</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> bufcolumn[]; |
| <a name="50" href="#50">50</a> |
| <a name="51" href="#51">51</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> column = 0; |
| <a name="52" href="#52">52</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> line = 1; |
| <a name="53" href="#53">53</a> |
| <a name="54" href="#54">54</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> prevCharIsCR = false; |
| <a name="55" href="#55">55</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> prevCharIsLF = false; |
| <a name="56" href="#56">56</a> |
| <a name="57" href="#57">57</a> <strong class="jxr_keyword">private</strong> java.io.Reader inputStream; |
| <a name="58" href="#58">58</a> |
| <a name="59" href="#59">59</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">char</strong>[] buffer; |
| <a name="60" href="#60">60</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> maxNextCharInd = 0; |
| <a name="61" href="#61">61</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> inBuf = 0; |
| <a name="62" href="#62">62</a> |
| <a name="63" href="#63">63</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> ExpandBuff(<strong class="jxr_keyword">boolean</strong> wrapAround) |
| <a name="64" href="#64">64</a> { |
| <a name="65" href="#65">65</a> <strong class="jxr_keyword">char</strong>[] newbuffer = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">char</strong>[bufsize + 2048]; |
| <a name="66" href="#66">66</a> <strong class="jxr_keyword">int</strong> newbufline[] = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[bufsize + 2048]; |
| <a name="67" href="#67">67</a> <strong class="jxr_keyword">int</strong> newbufcolumn[] = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[bufsize + 2048]; |
| <a name="68" href="#68">68</a> |
| <a name="69" href="#69">69</a> <strong class="jxr_keyword">try</strong> |
| <a name="70" href="#70">70</a> { |
| <a name="71" href="#71">71</a> <strong class="jxr_keyword">if</strong> (wrapAround) |
| <a name="72" href="#72">72</a> { |
| <a name="73" href="#73">73</a> System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin); |
| <a name="74" href="#74">74</a> System.arraycopy(buffer, 0, newbuffer, |
| <a name="75" href="#75">75</a> bufsize - tokenBegin, bufpos); |
| <a name="76" href="#76">76</a> buffer = newbuffer; |
| <a name="77" href="#77">77</a> |
| <a name="78" href="#78">78</a> System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin); |
| <a name="79" href="#79">79</a> System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos); |
| <a name="80" href="#80">80</a> bufline = newbufline; |
| <a name="81" href="#81">81</a> |
| <a name="82" href="#82">82</a> System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin); |
| <a name="83" href="#83">83</a> System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos); |
| <a name="84" href="#84">84</a> bufcolumn = newbufcolumn; |
| <a name="85" href="#85">85</a> |
| <a name="86" href="#86">86</a> maxNextCharInd = (bufpos += (bufsize - tokenBegin)); |
| <a name="87" href="#87">87</a> } |
| <a name="88" href="#88">88</a> <strong class="jxr_keyword">else</strong> |
| <a name="89" href="#89">89</a> { |
| <a name="90" href="#90">90</a> System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin); |
| <a name="91" href="#91">91</a> buffer = newbuffer; |
| <a name="92" href="#92">92</a> |
| <a name="93" href="#93">93</a> System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin); |
| <a name="94" href="#94">94</a> bufline = newbufline; |
| <a name="95" href="#95">95</a> |
| <a name="96" href="#96">96</a> System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin); |
| <a name="97" href="#97">97</a> bufcolumn = newbufcolumn; |
| <a name="98" href="#98">98</a> |
| <a name="99" href="#99">99</a> maxNextCharInd = (bufpos -= tokenBegin); |
| <a name="100" href="#100">100</a> } |
| <a name="101" href="#101">101</a> } |
| <a name="102" href="#102">102</a> <strong class="jxr_keyword">catch</strong> (Throwable t) |
| <a name="103" href="#103">103</a> { |
| <a name="104" href="#104">104</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> Error(t.getMessage()); |
| <a name="105" href="#105">105</a> } |
| <a name="106" href="#106">106</a> |
| <a name="107" href="#107">107</a> |
| <a name="108" href="#108">108</a> bufsize += 2048; |
| <a name="109" href="#109">109</a> available = bufsize; |
| <a name="110" href="#110">110</a> tokenBegin = 0; |
| <a name="111" href="#111">111</a> } |
| <a name="112" href="#112">112</a> |
| <a name="113" href="#113">113</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> FillBuff() <strong class="jxr_keyword">throws</strong> java.io.IOException |
| <a name="114" href="#114">114</a> { |
| <a name="115" href="#115">115</a> <strong class="jxr_keyword">if</strong> (maxNextCharInd == available) |
| <a name="116" href="#116">116</a> { |
| <a name="117" href="#117">117</a> <strong class="jxr_keyword">if</strong> (available == bufsize) |
| <a name="118" href="#118">118</a> { |
| <a name="119" href="#119">119</a> <strong class="jxr_keyword">if</strong> (tokenBegin > 2048) |
| <a name="120" href="#120">120</a> { |
| <a name="121" href="#121">121</a> bufpos = maxNextCharInd = 0; |
| <a name="122" href="#122">122</a> available = tokenBegin; |
| <a name="123" href="#123">123</a> } |
| <a name="124" href="#124">124</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (tokenBegin < 0) |
| <a name="125" href="#125">125</a> bufpos = maxNextCharInd = 0; |
| <a name="126" href="#126">126</a> <strong class="jxr_keyword">else</strong> |
| <a name="127" href="#127">127</a> ExpandBuff(false); |
| <a name="128" href="#128">128</a> } |
| <a name="129" href="#129">129</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (available > tokenBegin) |
| <a name="130" href="#130">130</a> available = bufsize; |
| <a name="131" href="#131">131</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> ((tokenBegin - available) < 2048) |
| <a name="132" href="#132">132</a> ExpandBuff(<strong class="jxr_keyword">true</strong>); |
| <a name="133" href="#133">133</a> <strong class="jxr_keyword">else</strong> |
| <a name="134" href="#134">134</a> available = tokenBegin; |
| <a name="135" href="#135">135</a> } |
| <a name="136" href="#136">136</a> |
| <a name="137" href="#137">137</a> <strong class="jxr_keyword">int</strong> i; |
| <a name="138" href="#138">138</a> <strong class="jxr_keyword">try</strong> { |
| <a name="139" href="#139">139</a> <strong class="jxr_keyword">if</strong> ((i = inputStream.read(buffer, maxNextCharInd, |
| <a name="140" href="#140">140</a> available - maxNextCharInd)) == -1) |
| <a name="141" href="#141">141</a> { |
| <a name="142" href="#142">142</a> inputStream.close(); |
| <a name="143" href="#143">143</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> java.io.IOException(); |
| <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> maxNextCharInd += i; |
| <a name="147" href="#147">147</a> <strong class="jxr_keyword">return</strong>; |
| <a name="148" href="#148">148</a> } |
| <a name="149" href="#149">149</a> <strong class="jxr_keyword">catch</strong>(java.io.IOException e) { |
| <a name="150" href="#150">150</a> --bufpos; |
| <a name="151" href="#151">151</a> backup(0); |
| <a name="152" href="#152">152</a> <strong class="jxr_keyword">if</strong> (tokenBegin == -1) |
| <a name="153" href="#153">153</a> tokenBegin = bufpos; |
| <a name="154" href="#154">154</a> <strong class="jxr_keyword">throw</strong> e; |
| <a name="155" href="#155">155</a> } |
| <a name="156" href="#156">156</a> } |
| <a name="157" href="#157">157</a> |
| <a name="158" href="#158">158</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#BeginToken()</em> |
| <a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="161" href="#161">161</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong> BeginToken() <strong class="jxr_keyword">throws</strong> java.io.IOException |
| <a name="162" href="#162">162</a> { |
| <a name="163" href="#163">163</a> tokenBegin = -1; |
| <a name="164" href="#164">164</a> <strong class="jxr_keyword">char</strong> c = readChar(); |
| <a name="165" href="#165">165</a> tokenBegin = bufpos; |
| <a name="166" href="#166">166</a> |
| <a name="167" href="#167">167</a> <strong class="jxr_keyword">return</strong> c; |
| <a name="168" href="#168">168</a> } |
| <a name="169" href="#169">169</a> |
| <a name="170" href="#170">170</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> UpdateLineColumn(<strong class="jxr_keyword">char</strong> c) |
| <a name="171" href="#171">171</a> { |
| <a name="172" href="#172">172</a> column++; |
| <a name="173" href="#173">173</a> |
| <a name="174" href="#174">174</a> <strong class="jxr_keyword">if</strong> (prevCharIsLF) |
| <a name="175" href="#175">175</a> { |
| <a name="176" href="#176">176</a> prevCharIsLF = false; |
| <a name="177" href="#177">177</a> line += (column = 1); |
| <a name="178" href="#178">178</a> } |
| <a name="179" href="#179">179</a> <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (prevCharIsCR) |
| <a name="180" href="#180">180</a> { |
| <a name="181" href="#181">181</a> prevCharIsCR = false; |
| <a name="182" href="#182">182</a> <strong class="jxr_keyword">if</strong> (c == '\n') |
| <a name="183" href="#183">183</a> { |
| <a name="184" href="#184">184</a> prevCharIsLF = <strong class="jxr_keyword">true</strong>; |
| <a name="185" href="#185">185</a> } |
| <a name="186" href="#186">186</a> <strong class="jxr_keyword">else</strong> |
| <a name="187" href="#187">187</a> line += (column = 1); |
| <a name="188" href="#188">188</a> } |
| <a name="189" href="#189">189</a> |
| <a name="190" href="#190">190</a> <strong class="jxr_keyword">switch</strong> (c) |
| <a name="191" href="#191">191</a> { |
| <a name="192" href="#192">192</a> <strong class="jxr_keyword">case</strong> '\r' : |
| <a name="193" href="#193">193</a> prevCharIsCR = <strong class="jxr_keyword">true</strong>; |
| <a name="194" href="#194">194</a> <strong class="jxr_keyword">break</strong>; |
| <a name="195" href="#195">195</a> <strong class="jxr_keyword">case</strong> '\n' : |
| <a name="196" href="#196">196</a> prevCharIsLF = <strong class="jxr_keyword">true</strong>; |
| <a name="197" href="#197">197</a> <strong class="jxr_keyword">break</strong>; |
| <a name="198" href="#198">198</a> <strong class="jxr_keyword">case</strong> '\t' : |
| <a name="199" href="#199">199</a> column--; |
| <a name="200" href="#200">200</a> column += (8 - (column & 07)); |
| <a name="201" href="#201">201</a> <strong class="jxr_keyword">break</strong>; |
| <a name="202" href="#202">202</a> <strong class="jxr_keyword">default</strong> : |
| <a name="203" href="#203">203</a> <strong class="jxr_keyword">break</strong>; |
| <a name="204" href="#204">204</a> } |
| <a name="205" href="#205">205</a> |
| <a name="206" href="#206">206</a> bufline[bufpos] = line; |
| <a name="207" href="#207">207</a> bufcolumn[bufpos] = column; |
| <a name="208" href="#208">208</a> } |
| <a name="209" href="#209">209</a> |
| <a name="210" href="#210">210</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="211" href="#211">211</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#readChar()</em> |
| <a name="212" href="#212">212</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="213" href="#213">213</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong> readChar() <strong class="jxr_keyword">throws</strong> java.io.IOException |
| <a name="214" href="#214">214</a> { |
| <a name="215" href="#215">215</a> <strong class="jxr_keyword">if</strong> (inBuf > 0) |
| <a name="216" href="#216">216</a> { |
| <a name="217" href="#217">217</a> --inBuf; |
| <a name="218" href="#218">218</a> |
| <a name="219" href="#219">219</a> <em class="jxr_comment">/*</em> |
| <a name="220" href="#220">220</a> <em class="jxr_comment"> * was : return (char)((char)0xff & buffer[(bufpos == bufsize - 1) ? (bufpos = 0) : ++bufpos]);</em> |
| <a name="221" href="#221">221</a> <em class="jxr_comment"> */</em> |
| <a name="222" href="#222">222</a> <strong class="jxr_keyword">return</strong> buffer[(bufpos == bufsize - 1) ? (bufpos = 0) : ++bufpos]; |
| <a name="223" href="#223">223</a> } |
| <a name="224" href="#224">224</a> |
| <a name="225" href="#225">225</a> <strong class="jxr_keyword">if</strong> (++bufpos >= maxNextCharInd) |
| <a name="226" href="#226">226</a> FillBuff(); |
| <a name="227" href="#227">227</a> |
| <a name="228" href="#228">228</a> <em class="jxr_comment">/*</em> |
| <a name="229" href="#229">229</a> <em class="jxr_comment"> * was : char c = (char)((char)0xff & buffer[bufpos]);</em> |
| <a name="230" href="#230">230</a> <em class="jxr_comment"> */</em> |
| <a name="231" href="#231">231</a> <strong class="jxr_keyword">char</strong> c = buffer[bufpos]; |
| <a name="232" href="#232">232</a> |
| <a name="233" href="#233">233</a> UpdateLineColumn(c); |
| <a name="234" href="#234">234</a> <strong class="jxr_keyword">return</strong> (c); |
| <a name="235" href="#235">235</a> } |
| <a name="236" href="#236">236</a> |
| <a name="237" href="#237">237</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="238" href="#238">238</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getColumn()</em> |
| <a name="239" href="#239">239</a> <em class="jxr_javadoccomment"> * @deprecated</em> |
| <a name="240" href="#240">240</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="241" href="#241">241</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getColumn() { |
| <a name="242" href="#242">242</a> <strong class="jxr_keyword">return</strong> bufcolumn[bufpos]; |
| <a name="243" href="#243">243</a> } |
| <a name="244" href="#244">244</a> |
| <a name="245" href="#245">245</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="246" href="#246">246</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getLine()</em> |
| <a name="247" href="#247">247</a> <em class="jxr_javadoccomment"> * @deprecated</em> |
| <a name="248" href="#248">248</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="249" href="#249">249</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getLine() { |
| <a name="250" href="#250">250</a> <strong class="jxr_keyword">return</strong> bufline[bufpos]; |
| <a name="251" href="#251">251</a> } |
| <a name="252" href="#252">252</a> |
| <a name="253" href="#253">253</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="254" href="#254">254</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getEndColumn()</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> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getEndColumn() { |
| <a name="257" href="#257">257</a> <strong class="jxr_keyword">return</strong> bufcolumn[bufpos]; |
| <a name="258" href="#258">258</a> } |
| <a name="259" href="#259">259</a> |
| <a name="260" href="#260">260</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="261" href="#261">261</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getEndLine()</em> |
| <a name="262" href="#262">262</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="263" href="#263">263</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getEndLine() { |
| <a name="264" href="#264">264</a> <strong class="jxr_keyword">return</strong> bufline[bufpos]; |
| <a name="265" href="#265">265</a> } |
| <a name="266" href="#266">266</a> |
| <a name="267" href="#267">267</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="268" href="#268">268</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getBeginColumn()</em> |
| <a name="269" href="#269">269</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="270" href="#270">270</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getBeginColumn() { |
| <a name="271" href="#271">271</a> <strong class="jxr_keyword">return</strong> bufcolumn[tokenBegin]; |
| <a name="272" href="#272">272</a> } |
| <a name="273" href="#273">273</a> |
| <a name="274" href="#274">274</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="275" href="#275">275</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#getBeginLine()</em> |
| <a name="276" href="#276">276</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="277" href="#277">277</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> getBeginLine() { |
| <a name="278" href="#278">278</a> <strong class="jxr_keyword">return</strong> bufline[tokenBegin]; |
| <a name="279" href="#279">279</a> } |
| <a name="280" href="#280">280</a> |
| <a name="281" href="#281">281</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="282" href="#282">282</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#backup(int)</em> |
| <a name="283" href="#283">283</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="284" href="#284">284</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">void</strong> backup(<strong class="jxr_keyword">int</strong> amount) { |
| <a name="285" href="#285">285</a> |
| <a name="286" href="#286">286</a> inBuf += amount; |
| <a name="287" href="#287">287</a> <strong class="jxr_keyword">if</strong> ((bufpos -= amount) < 0) |
| <a name="288" href="#288">288</a> bufpos += bufsize; |
| <a name="289" href="#289">289</a> } |
| <a name="290" href="#290">290</a> |
| <a name="291" href="#291">291</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="292" href="#292">292</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="293" href="#293">293</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="294" href="#294">294</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="295" href="#295">295</a> <em class="jxr_javadoccomment"> * @param buffersize</em> |
| <a name="296" href="#296">296</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="297" href="#297">297</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/velocity/runtime/parser/VelocityCharStream.html">VelocityCharStream</a>(java.io.Reader dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="298" href="#298">298</a> <strong class="jxr_keyword">int</strong> startcolumn, <strong class="jxr_keyword">int</strong> buffersize) |
| <a name="299" href="#299">299</a> { |
| <a name="300" href="#300">300</a> inputStream = dstream; |
| <a name="301" href="#301">301</a> line = startline; |
| <a name="302" href="#302">302</a> column = startcolumn - 1; |
| <a name="303" href="#303">303</a> |
| <a name="304" href="#304">304</a> available = bufsize = buffersize; |
| <a name="305" href="#305">305</a> buffer = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">char</strong>[buffersize]; |
| <a name="306" href="#306">306</a> bufline = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[buffersize]; |
| <a name="307" href="#307">307</a> bufcolumn = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[buffersize]; |
| <a name="308" href="#308">308</a> } |
| <a name="309" href="#309">309</a> |
| <a name="310" href="#310">310</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="311" href="#311">311</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="312" href="#312">312</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="313" href="#313">313</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="314" href="#314">314</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="315" href="#315">315</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/velocity/runtime/parser/VelocityCharStream.html">VelocityCharStream</a>(java.io.Reader dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="316" href="#316">316</a> <strong class="jxr_keyword">int</strong> startcolumn) |
| <a name="317" href="#317">317</a> { |
| <a name="318" href="#318">318</a> <strong class="jxr_keyword">this</strong>(dstream, startline, startcolumn, 4096); |
| <a name="319" href="#319">319</a> } |
| <a name="320" href="#320">320</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="321" href="#321">321</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="322" href="#322">322</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="323" href="#323">323</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="324" href="#324">324</a> <em class="jxr_javadoccomment"> * @param buffersize</em> |
| <a name="325" href="#325">325</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="326" href="#326">326</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ReInit(java.io.Reader dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="327" href="#327">327</a> <strong class="jxr_keyword">int</strong> startcolumn, <strong class="jxr_keyword">int</strong> buffersize) |
| <a name="328" href="#328">328</a> { |
| <a name="329" href="#329">329</a> inputStream = dstream; |
| <a name="330" href="#330">330</a> line = startline; |
| <a name="331" href="#331">331</a> column = startcolumn - 1; |
| <a name="332" href="#332">332</a> |
| <a name="333" href="#333">333</a> <strong class="jxr_keyword">if</strong> (buffer == <strong class="jxr_keyword">null</strong> || buffersize != buffer.length) |
| <a name="334" href="#334">334</a> { |
| <a name="335" href="#335">335</a> available = bufsize = buffersize; |
| <a name="336" href="#336">336</a> buffer = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">char</strong>[buffersize]; |
| <a name="337" href="#337">337</a> bufline = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[buffersize]; |
| <a name="338" href="#338">338</a> bufcolumn = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">int</strong>[buffersize]; |
| <a name="339" href="#339">339</a> } |
| <a name="340" href="#340">340</a> prevCharIsLF = prevCharIsCR = false; |
| <a name="341" href="#341">341</a> tokenBegin = inBuf = maxNextCharInd = 0; |
| <a name="342" href="#342">342</a> bufpos = -1; |
| <a name="343" href="#343">343</a> } |
| <a name="344" href="#344">344</a> |
| <a name="345" href="#345">345</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="346" href="#346">346</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="347" href="#347">347</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="348" href="#348">348</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="349" href="#349">349</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="350" href="#350">350</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ReInit(java.io.Reader dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="351" href="#351">351</a> <strong class="jxr_keyword">int</strong> startcolumn) |
| <a name="352" href="#352">352</a> { |
| <a name="353" href="#353">353</a> ReInit(dstream, startline, startcolumn, 4096); |
| <a name="354" href="#354">354</a> } |
| <a name="355" href="#355">355</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="356" href="#356">356</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="357" href="#357">357</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="358" href="#358">358</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="359" href="#359">359</a> <em class="jxr_javadoccomment"> * @param buffersize</em> |
| <a name="360" href="#360">360</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="361" href="#361">361</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/velocity/runtime/parser/VelocityCharStream.html">VelocityCharStream</a>(java.io.InputStream dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="362" href="#362">362</a> <strong class="jxr_keyword">int</strong> startcolumn, <strong class="jxr_keyword">int</strong> buffersize) |
| <a name="363" href="#363">363</a> { |
| <a name="364" href="#364">364</a> <strong class="jxr_keyword">this</strong>(<strong class="jxr_keyword">new</strong> java.io.InputStreamReader(dstream), startline, startcolumn, 4096); |
| <a name="365" href="#365">365</a> } |
| <a name="366" href="#366">366</a> |
| <a name="367" href="#367">367</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="368" href="#368">368</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="369" href="#369">369</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="370" href="#370">370</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="371" href="#371">371</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="372" href="#372">372</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/velocity/runtime/parser/VelocityCharStream.html">VelocityCharStream</a>(java.io.InputStream dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="373" href="#373">373</a> <strong class="jxr_keyword">int</strong> startcolumn) |
| <a name="374" href="#374">374</a> { |
| <a name="375" href="#375">375</a> <strong class="jxr_keyword">this</strong>(dstream, startline, startcolumn, 4096); |
| <a name="376" href="#376">376</a> } |
| <a name="377" href="#377">377</a> |
| <a name="378" href="#378">378</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="379" href="#379">379</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="380" href="#380">380</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="381" href="#381">381</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="382" href="#382">382</a> <em class="jxr_javadoccomment"> * @param buffersize</em> |
| <a name="383" href="#383">383</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="384" href="#384">384</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ReInit(java.io.InputStream dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="385" href="#385">385</a> <strong class="jxr_keyword">int</strong> startcolumn, <strong class="jxr_keyword">int</strong> buffersize) |
| <a name="386" href="#386">386</a> { |
| <a name="387" href="#387">387</a> ReInit(<strong class="jxr_keyword">new</strong> java.io.InputStreamReader(dstream), startline, startcolumn, 4096); |
| <a name="388" href="#388">388</a> } |
| <a name="389" href="#389">389</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="390" href="#390">390</a> <em class="jxr_javadoccomment"> * @param dstream</em> |
| <a name="391" href="#391">391</a> <em class="jxr_javadoccomment"> * @param startline</em> |
| <a name="392" href="#392">392</a> <em class="jxr_javadoccomment"> * @param startcolumn</em> |
| <a name="393" href="#393">393</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="394" href="#394">394</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> ReInit(java.io.InputStream dstream, <strong class="jxr_keyword">int</strong> startline, |
| <a name="395" href="#395">395</a> <strong class="jxr_keyword">int</strong> startcolumn) |
| <a name="396" href="#396">396</a> { |
| <a name="397" href="#397">397</a> ReInit(dstream, startline, startcolumn, 4096); |
| <a name="398" href="#398">398</a> } |
| <a name="399" href="#399">399</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="400" href="#400">400</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#GetImage()</em> |
| <a name="401" href="#401">401</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="402" href="#402">402</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> String GetImage() |
| <a name="403" href="#403">403</a> { |
| <a name="404" href="#404">404</a> <strong class="jxr_keyword">if</strong> (bufpos >= tokenBegin) |
| <a name="405" href="#405">405</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(buffer, tokenBegin, bufpos - tokenBegin + 1); |
| <a name="406" href="#406">406</a> <strong class="jxr_keyword">else</strong> |
| <a name="407" href="#407">407</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> String(buffer, tokenBegin, bufsize - tokenBegin) + |
| <a name="408" href="#408">408</a> <strong class="jxr_keyword">new</strong> String(buffer, 0, bufpos + 1); |
| <a name="409" href="#409">409</a> } |
| <a name="410" href="#410">410</a> |
| <a name="411" href="#411">411</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="412" href="#412">412</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#GetSuffix(int)</em> |
| <a name="413" href="#413">413</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="414" href="#414">414</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">char</strong>[] GetSuffix(<strong class="jxr_keyword">int</strong> len) |
| <a name="415" href="#415">415</a> { |
| <a name="416" href="#416">416</a> <strong class="jxr_keyword">char</strong>[] ret = <strong class="jxr_keyword">new</strong> <strong class="jxr_keyword">char</strong>[len]; |
| <a name="417" href="#417">417</a> |
| <a name="418" href="#418">418</a> <strong class="jxr_keyword">if</strong> ((bufpos + 1) >= len) |
| <a name="419" href="#419">419</a> System.arraycopy(buffer, bufpos - len + 1, ret, 0, len); |
| <a name="420" href="#420">420</a> <strong class="jxr_keyword">else</strong> |
| <a name="421" href="#421">421</a> { |
| <a name="422" href="#422">422</a> System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0, |
| <a name="423" href="#423">423</a> len - bufpos - 1); |
| <a name="424" href="#424">424</a> System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1); |
| <a name="425" href="#425">425</a> } |
| <a name="426" href="#426">426</a> |
| <a name="427" href="#427">427</a> <strong class="jxr_keyword">return</strong> ret; |
| <a name="428" href="#428">428</a> } |
| <a name="429" href="#429">429</a> |
| <a name="430" href="#430">430</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="431" href="#431">431</a> <em class="jxr_javadoccomment"> * @see org.apache.velocity.runtime.parser.CharStream#Done()</em> |
| <a name="432" href="#432">432</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="433" href="#433">433</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> Done() |
| <a name="434" href="#434">434</a> { |
| <a name="435" href="#435">435</a> buffer = <strong class="jxr_keyword">null</strong>; |
| <a name="436" href="#436">436</a> bufline = <strong class="jxr_keyword">null</strong>; |
| <a name="437" href="#437">437</a> bufcolumn = <strong class="jxr_keyword">null</strong>; |
| <a name="438" href="#438">438</a> } |
| <a name="439" href="#439">439</a> |
| <a name="440" href="#440">440</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="441" href="#441">441</a> <em class="jxr_javadoccomment"> * Method to adjust line and column numbers for the start of a token.<BR></em> |
| <a name="442" href="#442">442</a> <em class="jxr_javadoccomment"> * @param newLine</em> |
| <a name="443" href="#443">443</a> <em class="jxr_javadoccomment"> * @param newCol</em> |
| <a name="444" href="#444">444</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="445" href="#445">445</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> adjustBeginLineColumn(<strong class="jxr_keyword">int</strong> newLine, <strong class="jxr_keyword">int</strong> newCol) |
| <a name="446" href="#446">446</a> { |
| <a name="447" href="#447">447</a> <strong class="jxr_keyword">int</strong> start = tokenBegin; |
| <a name="448" href="#448">448</a> <strong class="jxr_keyword">int</strong> len; |
| <a name="449" href="#449">449</a> |
| <a name="450" href="#450">450</a> <strong class="jxr_keyword">if</strong> (bufpos >= tokenBegin) |
| <a name="451" href="#451">451</a> { |
| <a name="452" href="#452">452</a> len = bufpos - tokenBegin + inBuf + 1; |
| <a name="453" href="#453">453</a> } |
| <a name="454" href="#454">454</a> <strong class="jxr_keyword">else</strong> |
| <a name="455" href="#455">455</a> { |
| <a name="456" href="#456">456</a> len = bufsize - tokenBegin + bufpos + 1 + inBuf; |
| <a name="457" href="#457">457</a> } |
| <a name="458" href="#458">458</a> |
| <a name="459" href="#459">459</a> <strong class="jxr_keyword">int</strong> i = 0, j = 0, k = 0; |
| <a name="460" href="#460">460</a> <strong class="jxr_keyword">int</strong> nextColDiff = 0, columnDiff = 0; |
| <a name="461" href="#461">461</a> |
| <a name="462" href="#462">462</a> <strong class="jxr_keyword">while</strong> (i < len && |
| <a name="463" href="#463">463</a> bufline[j = start % bufsize] == bufline[k = ++start % bufsize]) |
| <a name="464" href="#464">464</a> { |
| <a name="465" href="#465">465</a> bufline[j] = newLine; |
| <a name="466" href="#466">466</a> nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j]; |
| <a name="467" href="#467">467</a> bufcolumn[j] = newCol + columnDiff; |
| <a name="468" href="#468">468</a> columnDiff = nextColDiff; |
| <a name="469" href="#469">469</a> i++; |
| <a name="470" href="#470">470</a> } |
| <a name="471" href="#471">471</a> |
| <a name="472" href="#472">472</a> <strong class="jxr_keyword">if</strong> (i < len) |
| <a name="473" href="#473">473</a> { |
| <a name="474" href="#474">474</a> bufline[j] = newLine++; |
| <a name="475" href="#475">475</a> bufcolumn[j] = newCol + columnDiff; |
| <a name="476" href="#476">476</a> |
| <a name="477" href="#477">477</a> <strong class="jxr_keyword">while</strong> (i++ < len) |
| <a name="478" href="#478">478</a> { |
| <a name="479" href="#479">479</a> <strong class="jxr_keyword">if</strong> (bufline[j = start % bufsize] != bufline[++start % bufsize]) |
| <a name="480" href="#480">480</a> bufline[j] = newLine++; |
| <a name="481" href="#481">481</a> <strong class="jxr_keyword">else</strong> |
| <a name="482" href="#482">482</a> bufline[j] = newLine; |
| <a name="483" href="#483">483</a> } |
| <a name="484" href="#484">484</a> } |
| <a name="485" href="#485">485</a> |
| <a name="486" href="#486">486</a> line = bufline[j]; |
| <a name="487" href="#487">487</a> column = bufcolumn[j]; |
| <a name="488" href="#488">488</a> } |
| <a name="489" href="#489">489</a> |
| <a name="490" href="#490">490</a> } |
| </pre> |
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