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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 or more<a name="line.2"></a> |
| <FONT color="green">003</FONT> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> |
| <FONT color="green">004</FONT> * this work for additional information regarding copyright ownership.<a name="line.4"></a> |
| <FONT color="green">005</FONT> * The ASF licenses this file to You under the Apache license, Version 2.0<a name="line.5"></a> |
| <FONT color="green">006</FONT> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> |
| <FONT color="green">007</FONT> * the License. You may obtain a copy of the License at<a name="line.7"></a> |
| <FONT color="green">008</FONT> *<a name="line.8"></a> |
| <FONT color="green">009</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <FONT color="green">010</FONT> *<a name="line.10"></a> |
| <FONT color="green">011</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> |
| <FONT color="green">012</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> |
| <FONT color="green">013</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> |
| <FONT color="green">014</FONT> * See the license for the specific language governing permissions and<a name="line.14"></a> |
| <FONT color="green">015</FONT> * limitations under the license.<a name="line.15"></a> |
| <FONT color="green">016</FONT> */<a name="line.16"></a> |
| <FONT color="green">017</FONT> package org.apache.logging.log4j.core.lookup;<a name="line.17"></a> |
| <FONT color="green">018</FONT> <a name="line.18"></a> |
| <FONT color="green">019</FONT> import java.util.Arrays;<a name="line.19"></a> |
| <FONT color="green">020</FONT> <a name="line.20"></a> |
| <FONT color="green">021</FONT> /**<a name="line.21"></a> |
| <FONT color="green">022</FONT> * A matcher class that can be queried to determine if a character array<a name="line.22"></a> |
| <FONT color="green">023</FONT> * portion matches.<a name="line.23"></a> |
| <FONT color="green">024</FONT> * <p><a name="line.24"></a> |
| <FONT color="green">025</FONT> * This class comes complete with various factory methods.<a name="line.25"></a> |
| <FONT color="green">026</FONT> * If these do not suffice, you can subclass and implement your own matcher.<a name="line.26"></a> |
| <FONT color="green">027</FONT> */<a name="line.27"></a> |
| <FONT color="green">028</FONT> public abstract class StrMatcher {<a name="line.28"></a> |
| <FONT color="green">029</FONT> <a name="line.29"></a> |
| <FONT color="green">030</FONT> /**<a name="line.30"></a> |
| <FONT color="green">031</FONT> * Matches the comma character.<a name="line.31"></a> |
| <FONT color="green">032</FONT> */<a name="line.32"></a> |
| <FONT color="green">033</FONT> private static final StrMatcher COMMA_MATCHER = new CharMatcher(',');<a name="line.33"></a> |
| <FONT color="green">034</FONT> /**<a name="line.34"></a> |
| <FONT color="green">035</FONT> * Matches the tab character.<a name="line.35"></a> |
| <FONT color="green">036</FONT> */<a name="line.36"></a> |
| <FONT color="green">037</FONT> private static final StrMatcher TAB_MATCHER = new CharMatcher('\t');<a name="line.37"></a> |
| <FONT color="green">038</FONT> /**<a name="line.38"></a> |
| <FONT color="green">039</FONT> * Matches the space character.<a name="line.39"></a> |
| <FONT color="green">040</FONT> */<a name="line.40"></a> |
| <FONT color="green">041</FONT> private static final StrMatcher SPACE_MATCHER = new CharMatcher(' ');<a name="line.41"></a> |
| <FONT color="green">042</FONT> /**<a name="line.42"></a> |
| <FONT color="green">043</FONT> * Matches the same characters as StringTokenizer,<a name="line.43"></a> |
| <FONT color="green">044</FONT> * namely space, tab, newline, formfeed.<a name="line.44"></a> |
| <FONT color="green">045</FONT> */<a name="line.45"></a> |
| <FONT color="green">046</FONT> private static final StrMatcher SPLIT_MATCHER = new CharSetMatcher(" \t\n\r\f".toCharArray());<a name="line.46"></a> |
| <FONT color="green">047</FONT> /**<a name="line.47"></a> |
| <FONT color="green">048</FONT> * Matches the String trim() whitespace characters.<a name="line.48"></a> |
| <FONT color="green">049</FONT> */<a name="line.49"></a> |
| <FONT color="green">050</FONT> private static final StrMatcher TRIM_MATCHER = new TrimMatcher();<a name="line.50"></a> |
| <FONT color="green">051</FONT> /**<a name="line.51"></a> |
| <FONT color="green">052</FONT> * Matches the double quote character.<a name="line.52"></a> |
| <FONT color="green">053</FONT> */<a name="line.53"></a> |
| <FONT color="green">054</FONT> private static final StrMatcher SINGLE_QUOTE_MATCHER = new CharMatcher('\'');<a name="line.54"></a> |
| <FONT color="green">055</FONT> /**<a name="line.55"></a> |
| <FONT color="green">056</FONT> * Matches the double quote character.<a name="line.56"></a> |
| <FONT color="green">057</FONT> */<a name="line.57"></a> |
| <FONT color="green">058</FONT> private static final StrMatcher DOUBLE_QUOTE_MATCHER = new CharMatcher('"');<a name="line.58"></a> |
| <FONT color="green">059</FONT> /**<a name="line.59"></a> |
| <FONT color="green">060</FONT> * Matches the single or double quote character.<a name="line.60"></a> |
| <FONT color="green">061</FONT> */<a name="line.61"></a> |
| <FONT color="green">062</FONT> private static final StrMatcher QUOTE_MATCHER = new CharSetMatcher("'\"".toCharArray());<a name="line.62"></a> |
| <FONT color="green">063</FONT> /**<a name="line.63"></a> |
| <FONT color="green">064</FONT> * Matches no characters.<a name="line.64"></a> |
| <FONT color="green">065</FONT> */<a name="line.65"></a> |
| <FONT color="green">066</FONT> private static final StrMatcher NONE_MATCHER = new NoMatcher();<a name="line.66"></a> |
| <FONT color="green">067</FONT> <a name="line.67"></a> |
| <FONT color="green">068</FONT> /**<a name="line.68"></a> |
| <FONT color="green">069</FONT> * Constructor.<a name="line.69"></a> |
| <FONT color="green">070</FONT> */<a name="line.70"></a> |
| <FONT color="green">071</FONT> protected StrMatcher() {<a name="line.71"></a> |
| <FONT color="green">072</FONT> }<a name="line.72"></a> |
| <FONT color="green">073</FONT> <a name="line.73"></a> |
| <FONT color="green">074</FONT> /**<a name="line.74"></a> |
| <FONT color="green">075</FONT> * Returns a matcher which matches the comma character.<a name="line.75"></a> |
| <FONT color="green">076</FONT> *<a name="line.76"></a> |
| <FONT color="green">077</FONT> * @return a matcher for a comma<a name="line.77"></a> |
| <FONT color="green">078</FONT> */<a name="line.78"></a> |
| <FONT color="green">079</FONT> public static StrMatcher commaMatcher() {<a name="line.79"></a> |
| <FONT color="green">080</FONT> return COMMA_MATCHER;<a name="line.80"></a> |
| <FONT color="green">081</FONT> }<a name="line.81"></a> |
| <FONT color="green">082</FONT> <a name="line.82"></a> |
| <FONT color="green">083</FONT> /**<a name="line.83"></a> |
| <FONT color="green">084</FONT> * Returns a matcher which matches the tab character.<a name="line.84"></a> |
| <FONT color="green">085</FONT> *<a name="line.85"></a> |
| <FONT color="green">086</FONT> * @return a matcher for a tab<a name="line.86"></a> |
| <FONT color="green">087</FONT> */<a name="line.87"></a> |
| <FONT color="green">088</FONT> public static StrMatcher tabMatcher() {<a name="line.88"></a> |
| <FONT color="green">089</FONT> return TAB_MATCHER;<a name="line.89"></a> |
| <FONT color="green">090</FONT> }<a name="line.90"></a> |
| <FONT color="green">091</FONT> <a name="line.91"></a> |
| <FONT color="green">092</FONT> /**<a name="line.92"></a> |
| <FONT color="green">093</FONT> * Returns a matcher which matches the space character.<a name="line.93"></a> |
| <FONT color="green">094</FONT> *<a name="line.94"></a> |
| <FONT color="green">095</FONT> * @return a matcher for a space<a name="line.95"></a> |
| <FONT color="green">096</FONT> */<a name="line.96"></a> |
| <FONT color="green">097</FONT> public static StrMatcher spaceMatcher() {<a name="line.97"></a> |
| <FONT color="green">098</FONT> return SPACE_MATCHER;<a name="line.98"></a> |
| <FONT color="green">099</FONT> }<a name="line.99"></a> |
| <FONT color="green">100</FONT> <a name="line.100"></a> |
| <FONT color="green">101</FONT> /**<a name="line.101"></a> |
| <FONT color="green">102</FONT> * Matches the same characters as StringTokenizer,<a name="line.102"></a> |
| <FONT color="green">103</FONT> * namely space, tab, newline and formfeed.<a name="line.103"></a> |
| <FONT color="green">104</FONT> *<a name="line.104"></a> |
| <FONT color="green">105</FONT> * @return the split matcher<a name="line.105"></a> |
| <FONT color="green">106</FONT> */<a name="line.106"></a> |
| <FONT color="green">107</FONT> public static StrMatcher splitMatcher() {<a name="line.107"></a> |
| <FONT color="green">108</FONT> return SPLIT_MATCHER;<a name="line.108"></a> |
| <FONT color="green">109</FONT> }<a name="line.109"></a> |
| <FONT color="green">110</FONT> <a name="line.110"></a> |
| <FONT color="green">111</FONT> /**<a name="line.111"></a> |
| <FONT color="green">112</FONT> * Matches the String trim() whitespace characters.<a name="line.112"></a> |
| <FONT color="green">113</FONT> *<a name="line.113"></a> |
| <FONT color="green">114</FONT> * @return the trim matcher<a name="line.114"></a> |
| <FONT color="green">115</FONT> */<a name="line.115"></a> |
| <FONT color="green">116</FONT> public static StrMatcher trimMatcher() {<a name="line.116"></a> |
| <FONT color="green">117</FONT> return TRIM_MATCHER;<a name="line.117"></a> |
| <FONT color="green">118</FONT> }<a name="line.118"></a> |
| <FONT color="green">119</FONT> <a name="line.119"></a> |
| <FONT color="green">120</FONT> /**<a name="line.120"></a> |
| <FONT color="green">121</FONT> * Returns a matcher which matches the single quote character.<a name="line.121"></a> |
| <FONT color="green">122</FONT> *<a name="line.122"></a> |
| <FONT color="green">123</FONT> * @return a matcher for a single quote<a name="line.123"></a> |
| <FONT color="green">124</FONT> */<a name="line.124"></a> |
| <FONT color="green">125</FONT> public static StrMatcher singleQuoteMatcher() {<a name="line.125"></a> |
| <FONT color="green">126</FONT> return SINGLE_QUOTE_MATCHER;<a name="line.126"></a> |
| <FONT color="green">127</FONT> }<a name="line.127"></a> |
| <FONT color="green">128</FONT> <a name="line.128"></a> |
| <FONT color="green">129</FONT> /**<a name="line.129"></a> |
| <FONT color="green">130</FONT> * Returns a matcher which matches the double quote character.<a name="line.130"></a> |
| <FONT color="green">131</FONT> *<a name="line.131"></a> |
| <FONT color="green">132</FONT> * @return a matcher for a double quote<a name="line.132"></a> |
| <FONT color="green">133</FONT> */<a name="line.133"></a> |
| <FONT color="green">134</FONT> public static StrMatcher doubleQuoteMatcher() {<a name="line.134"></a> |
| <FONT color="green">135</FONT> return DOUBLE_QUOTE_MATCHER;<a name="line.135"></a> |
| <FONT color="green">136</FONT> }<a name="line.136"></a> |
| <FONT color="green">137</FONT> <a name="line.137"></a> |
| <FONT color="green">138</FONT> /**<a name="line.138"></a> |
| <FONT color="green">139</FONT> * Returns a matcher which matches the single or double quote character.<a name="line.139"></a> |
| <FONT color="green">140</FONT> *<a name="line.140"></a> |
| <FONT color="green">141</FONT> * @return a matcher for a single or double quote<a name="line.141"></a> |
| <FONT color="green">142</FONT> */<a name="line.142"></a> |
| <FONT color="green">143</FONT> public static StrMatcher quoteMatcher() {<a name="line.143"></a> |
| <FONT color="green">144</FONT> return QUOTE_MATCHER;<a name="line.144"></a> |
| <FONT color="green">145</FONT> }<a name="line.145"></a> |
| <FONT color="green">146</FONT> <a name="line.146"></a> |
| <FONT color="green">147</FONT> /**<a name="line.147"></a> |
| <FONT color="green">148</FONT> * Matches no characters.<a name="line.148"></a> |
| <FONT color="green">149</FONT> *<a name="line.149"></a> |
| <FONT color="green">150</FONT> * @return a matcher that matches nothing<a name="line.150"></a> |
| <FONT color="green">151</FONT> */<a name="line.151"></a> |
| <FONT color="green">152</FONT> public static StrMatcher noneMatcher() {<a name="line.152"></a> |
| <FONT color="green">153</FONT> return NONE_MATCHER;<a name="line.153"></a> |
| <FONT color="green">154</FONT> }<a name="line.154"></a> |
| <FONT color="green">155</FONT> <a name="line.155"></a> |
| <FONT color="green">156</FONT> /**<a name="line.156"></a> |
| <FONT color="green">157</FONT> * Constructor that creates a matcher from a character.<a name="line.157"></a> |
| <FONT color="green">158</FONT> *<a name="line.158"></a> |
| <FONT color="green">159</FONT> * @param ch the character to match, must not be null<a name="line.159"></a> |
| <FONT color="green">160</FONT> * @return a new Matcher for the given char<a name="line.160"></a> |
| <FONT color="green">161</FONT> */<a name="line.161"></a> |
| <FONT color="green">162</FONT> public static StrMatcher charMatcher(char ch) {<a name="line.162"></a> |
| <FONT color="green">163</FONT> return new CharMatcher(ch);<a name="line.163"></a> |
| <FONT color="green">164</FONT> }<a name="line.164"></a> |
| <FONT color="green">165</FONT> <a name="line.165"></a> |
| <FONT color="green">166</FONT> /**<a name="line.166"></a> |
| <FONT color="green">167</FONT> * Constructor that creates a matcher from a set of characters.<a name="line.167"></a> |
| <FONT color="green">168</FONT> *<a name="line.168"></a> |
| <FONT color="green">169</FONT> * @param chars the characters to match, null or empty matches nothing<a name="line.169"></a> |
| <FONT color="green">170</FONT> * @return a new matcher for the given char[]<a name="line.170"></a> |
| <FONT color="green">171</FONT> */<a name="line.171"></a> |
| <FONT color="green">172</FONT> public static StrMatcher charSetMatcher(char[] chars) {<a name="line.172"></a> |
| <FONT color="green">173</FONT> if (chars == null || chars.length == 0) {<a name="line.173"></a> |
| <FONT color="green">174</FONT> return NONE_MATCHER;<a name="line.174"></a> |
| <FONT color="green">175</FONT> }<a name="line.175"></a> |
| <FONT color="green">176</FONT> if (chars.length == 1) {<a name="line.176"></a> |
| <FONT color="green">177</FONT> return new CharMatcher(chars[0]);<a name="line.177"></a> |
| <FONT color="green">178</FONT> }<a name="line.178"></a> |
| <FONT color="green">179</FONT> return new CharSetMatcher(chars);<a name="line.179"></a> |
| <FONT color="green">180</FONT> }<a name="line.180"></a> |
| <FONT color="green">181</FONT> <a name="line.181"></a> |
| <FONT color="green">182</FONT> /**<a name="line.182"></a> |
| <FONT color="green">183</FONT> * Constructor that creates a matcher from a string representing a set of characters.<a name="line.183"></a> |
| <FONT color="green">184</FONT> *<a name="line.184"></a> |
| <FONT color="green">185</FONT> * @param chars the characters to match, null or empty matches nothing<a name="line.185"></a> |
| <FONT color="green">186</FONT> * @return a new Matcher for the given characters<a name="line.186"></a> |
| <FONT color="green">187</FONT> */<a name="line.187"></a> |
| <FONT color="green">188</FONT> public static StrMatcher charSetMatcher(String chars) {<a name="line.188"></a> |
| <FONT color="green">189</FONT> if (chars == null || chars.length() == 0) {<a name="line.189"></a> |
| <FONT color="green">190</FONT> return NONE_MATCHER;<a name="line.190"></a> |
| <FONT color="green">191</FONT> }<a name="line.191"></a> |
| <FONT color="green">192</FONT> if (chars.length() == 1) {<a name="line.192"></a> |
| <FONT color="green">193</FONT> return new CharMatcher(chars.charAt(0));<a name="line.193"></a> |
| <FONT color="green">194</FONT> }<a name="line.194"></a> |
| <FONT color="green">195</FONT> return new CharSetMatcher(chars.toCharArray());<a name="line.195"></a> |
| <FONT color="green">196</FONT> }<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> * Constructor that creates a matcher from a string.<a name="line.199"></a> |
| <FONT color="green">200</FONT> *<a name="line.200"></a> |
| <FONT color="green">201</FONT> * @param str the string to match, null or empty matches nothing<a name="line.201"></a> |
| <FONT color="green">202</FONT> * @return a new Matcher for the given String<a name="line.202"></a> |
| <FONT color="green">203</FONT> */<a name="line.203"></a> |
| <FONT color="green">204</FONT> public static StrMatcher stringMatcher(String str) {<a name="line.204"></a> |
| <FONT color="green">205</FONT> if (str == null || str.length() == 0) {<a name="line.205"></a> |
| <FONT color="green">206</FONT> return NONE_MATCHER;<a name="line.206"></a> |
| <FONT color="green">207</FONT> }<a name="line.207"></a> |
| <FONT color="green">208</FONT> return new StringMatcher(str);<a name="line.208"></a> |
| <FONT color="green">209</FONT> }<a name="line.209"></a> |
| <FONT color="green">210</FONT> <a name="line.210"></a> |
| <FONT color="green">211</FONT> /**<a name="line.211"></a> |
| <FONT color="green">212</FONT> * Returns the number of matching characters, zero for no match.<a name="line.212"></a> |
| <FONT color="green">213</FONT> * <p><a name="line.213"></a> |
| <FONT color="green">214</FONT> * This method is called to check for a match.<a name="line.214"></a> |
| <FONT color="green">215</FONT> * The parameter <code>pos</code> represents the current position to be<a name="line.215"></a> |
| <FONT color="green">216</FONT> * checked in the string <code>buffer</code> (a character array which must<a name="line.216"></a> |
| <FONT color="green">217</FONT> * not be changed).<a name="line.217"></a> |
| <FONT color="green">218</FONT> * The API guarantees that <code>pos</code> is a valid index for <code>buffer</code>.<a name="line.218"></a> |
| <FONT color="green">219</FONT> * <p><a name="line.219"></a> |
| <FONT color="green">220</FONT> * The character array may be larger than the active area to be matched.<a name="line.220"></a> |
| <FONT color="green">221</FONT> * Only values in the buffer between the specifed indices may be accessed.<a name="line.221"></a> |
| <FONT color="green">222</FONT> * <p><a name="line.222"></a> |
| <FONT color="green">223</FONT> * The matching code may check one character or many.<a name="line.223"></a> |
| <FONT color="green">224</FONT> * It may check characters preceeding <code>pos</code> as well as those<a name="line.224"></a> |
| <FONT color="green">225</FONT> * after, so long as no checks exceed the bounds specified.<a name="line.225"></a> |
| <FONT color="green">226</FONT> * <p><a name="line.226"></a> |
| <FONT color="green">227</FONT> * It must return zero for no match, or a positive number if a match was found.<a name="line.227"></a> |
| <FONT color="green">228</FONT> * The number indicates the number of characters that matched.<a name="line.228"></a> |
| <FONT color="green">229</FONT> *<a name="line.229"></a> |
| <FONT color="green">230</FONT> * @param buffer the text content to match against, do not change<a name="line.230"></a> |
| <FONT color="green">231</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.231"></a> |
| <FONT color="green">232</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.232"></a> |
| <FONT color="green">233</FONT> * @param bufferEnd the end index (exclusive) of the active buffer, valid for buffer<a name="line.233"></a> |
| <FONT color="green">234</FONT> * @return the number of matching characters, zero for no match<a name="line.234"></a> |
| <FONT color="green">235</FONT> */<a name="line.235"></a> |
| <FONT color="green">236</FONT> public abstract int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd);<a name="line.236"></a> |
| <FONT color="green">237</FONT> <a name="line.237"></a> |
| <FONT color="green">238</FONT> /**<a name="line.238"></a> |
| <FONT color="green">239</FONT> * Returns the number of matching characters, zero for no match.<a name="line.239"></a> |
| <FONT color="green">240</FONT> * <p><a name="line.240"></a> |
| <FONT color="green">241</FONT> * This method is called to check for a match.<a name="line.241"></a> |
| <FONT color="green">242</FONT> * The parameter <code>pos</code> represents the current position to be<a name="line.242"></a> |
| <FONT color="green">243</FONT> * checked in the string <code>buffer</code> (a character array which must<a name="line.243"></a> |
| <FONT color="green">244</FONT> * not be changed).<a name="line.244"></a> |
| <FONT color="green">245</FONT> * The API guarantees that <code>pos</code> is a valid index for <code>buffer</code>.<a name="line.245"></a> |
| <FONT color="green">246</FONT> * <p><a name="line.246"></a> |
| <FONT color="green">247</FONT> * The matching code may check one character or many.<a name="line.247"></a> |
| <FONT color="green">248</FONT> * It may check characters preceeding <code>pos</code> as well as those after.<a name="line.248"></a> |
| <FONT color="green">249</FONT> * <p><a name="line.249"></a> |
| <FONT color="green">250</FONT> * It must return zero for no match, or a positive number if a match was found.<a name="line.250"></a> |
| <FONT color="green">251</FONT> * The number indicates the number of characters that matched.<a name="line.251"></a> |
| <FONT color="green">252</FONT> *<a name="line.252"></a> |
| <FONT color="green">253</FONT> * @param buffer the text content to match against, do not change<a name="line.253"></a> |
| <FONT color="green">254</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.254"></a> |
| <FONT color="green">255</FONT> * @return the number of matching characters, zero for no match<a name="line.255"></a> |
| <FONT color="green">256</FONT> * @since 2.4<a name="line.256"></a> |
| <FONT color="green">257</FONT> */<a name="line.257"></a> |
| <FONT color="green">258</FONT> public int isMatch(char[] buffer, int pos) {<a name="line.258"></a> |
| <FONT color="green">259</FONT> return isMatch(buffer, pos, 0, buffer.length);<a name="line.259"></a> |
| <FONT color="green">260</FONT> }<a name="line.260"></a> |
| <FONT color="green">261</FONT> <a name="line.261"></a> |
| <FONT color="green">262</FONT> //-----------------------------------------------------------------------<a name="line.262"></a> |
| <FONT color="green">263</FONT> /**<a name="line.263"></a> |
| <FONT color="green">264</FONT> * Class used to define a set of characters for matching purposes.<a name="line.264"></a> |
| <FONT color="green">265</FONT> */<a name="line.265"></a> |
| <FONT color="green">266</FONT> static final class CharSetMatcher extends StrMatcher {<a name="line.266"></a> |
| <FONT color="green">267</FONT> /** The set of characters to match. */<a name="line.267"></a> |
| <FONT color="green">268</FONT> private final char[] chars;<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> * Constructor that creates a matcher from a character array.<a name="line.271"></a> |
| <FONT color="green">272</FONT> *<a name="line.272"></a> |
| <FONT color="green">273</FONT> * @param chars the characters to match, must not be null<a name="line.273"></a> |
| <FONT color="green">274</FONT> */<a name="line.274"></a> |
| <FONT color="green">275</FONT> CharSetMatcher(char[] chars) {<a name="line.275"></a> |
| <FONT color="green">276</FONT> super();<a name="line.276"></a> |
| <FONT color="green">277</FONT> this.chars = chars.clone();<a name="line.277"></a> |
| <FONT color="green">278</FONT> Arrays.sort(this.chars);<a name="line.278"></a> |
| <FONT color="green">279</FONT> }<a name="line.279"></a> |
| <FONT color="green">280</FONT> <a name="line.280"></a> |
| <FONT color="green">281</FONT> /**<a name="line.281"></a> |
| <FONT color="green">282</FONT> * Returns whether or not the given character matches.<a name="line.282"></a> |
| <FONT color="green">283</FONT> *<a name="line.283"></a> |
| <FONT color="green">284</FONT> * @param buffer the text content to match against, do not change<a name="line.284"></a> |
| <FONT color="green">285</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.285"></a> |
| <FONT color="green">286</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.286"></a> |
| <FONT color="green">287</FONT> * @param bufferEnd the end index of the active buffer, valid for buffer<a name="line.287"></a> |
| <FONT color="green">288</FONT> * @return the number of matching characters, zero for no match<a name="line.288"></a> |
| <FONT color="green">289</FONT> */<a name="line.289"></a> |
| <FONT color="green">290</FONT> @Override<a name="line.290"></a> |
| <FONT color="green">291</FONT> public int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd) {<a name="line.291"></a> |
| <FONT color="green">292</FONT> return Arrays.binarySearch(chars, buffer[pos]) >= 0 ? 1 : 0;<a name="line.292"></a> |
| <FONT color="green">293</FONT> }<a name="line.293"></a> |
| <FONT color="green">294</FONT> }<a name="line.294"></a> |
| <FONT color="green">295</FONT> <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> * Class used to define a character for matching purposes.<a name="line.298"></a> |
| <FONT color="green">299</FONT> */<a name="line.299"></a> |
| <FONT color="green">300</FONT> static final class CharMatcher extends StrMatcher {<a name="line.300"></a> |
| <FONT color="green">301</FONT> /** The character to match. */<a name="line.301"></a> |
| <FONT color="green">302</FONT> private final char ch;<a name="line.302"></a> |
| <FONT color="green">303</FONT> <a name="line.303"></a> |
| <FONT color="green">304</FONT> /**<a name="line.304"></a> |
| <FONT color="green">305</FONT> * Constructor that creates a matcher that matches a single character.<a name="line.305"></a> |
| <FONT color="green">306</FONT> *<a name="line.306"></a> |
| <FONT color="green">307</FONT> * @param ch the character to match<a name="line.307"></a> |
| <FONT color="green">308</FONT> */<a name="line.308"></a> |
| <FONT color="green">309</FONT> CharMatcher(char ch) {<a name="line.309"></a> |
| <FONT color="green">310</FONT> super();<a name="line.310"></a> |
| <FONT color="green">311</FONT> this.ch = ch;<a name="line.311"></a> |
| <FONT color="green">312</FONT> }<a name="line.312"></a> |
| <FONT color="green">313</FONT> <a name="line.313"></a> |
| <FONT color="green">314</FONT> /**<a name="line.314"></a> |
| <FONT color="green">315</FONT> * Returns whether or not the given character matches.<a name="line.315"></a> |
| <FONT color="green">316</FONT> *<a name="line.316"></a> |
| <FONT color="green">317</FONT> * @param buffer the text content to match against, do not change<a name="line.317"></a> |
| <FONT color="green">318</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.318"></a> |
| <FONT color="green">319</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.319"></a> |
| <FONT color="green">320</FONT> * @param bufferEnd the end index of the active buffer, valid for buffer<a name="line.320"></a> |
| <FONT color="green">321</FONT> * @return the number of matching characters, zero for no match<a name="line.321"></a> |
| <FONT color="green">322</FONT> */<a name="line.322"></a> |
| <FONT color="green">323</FONT> @Override<a name="line.323"></a> |
| <FONT color="green">324</FONT> public int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd) {<a name="line.324"></a> |
| <FONT color="green">325</FONT> return ch == buffer[pos] ? 1 : 0;<a name="line.325"></a> |
| <FONT color="green">326</FONT> }<a name="line.326"></a> |
| <FONT color="green">327</FONT> }<a name="line.327"></a> |
| <FONT color="green">328</FONT> <a name="line.328"></a> |
| <FONT color="green">329</FONT> //-----------------------------------------------------------------------<a name="line.329"></a> |
| <FONT color="green">330</FONT> /**<a name="line.330"></a> |
| <FONT color="green">331</FONT> * Class used to define a set of characters for matching purposes.<a name="line.331"></a> |
| <FONT color="green">332</FONT> */<a name="line.332"></a> |
| <FONT color="green">333</FONT> static final class StringMatcher extends StrMatcher {<a name="line.333"></a> |
| <FONT color="green">334</FONT> /** The string to match, as a character array. */<a name="line.334"></a> |
| <FONT color="green">335</FONT> private final char[] chars;<a name="line.335"></a> |
| <FONT color="green">336</FONT> <a name="line.336"></a> |
| <FONT color="green">337</FONT> /**<a name="line.337"></a> |
| <FONT color="green">338</FONT> * Constructor that creates a matcher from a String.<a name="line.338"></a> |
| <FONT color="green">339</FONT> *<a name="line.339"></a> |
| <FONT color="green">340</FONT> * @param str the string to match, must not be null<a name="line.340"></a> |
| <FONT color="green">341</FONT> */<a name="line.341"></a> |
| <FONT color="green">342</FONT> StringMatcher(String str) {<a name="line.342"></a> |
| <FONT color="green">343</FONT> super();<a name="line.343"></a> |
| <FONT color="green">344</FONT> chars = str.toCharArray();<a name="line.344"></a> |
| <FONT color="green">345</FONT> }<a name="line.345"></a> |
| <FONT color="green">346</FONT> <a name="line.346"></a> |
| <FONT color="green">347</FONT> /**<a name="line.347"></a> |
| <FONT color="green">348</FONT> * Returns whether or not the given text matches the stored string.<a name="line.348"></a> |
| <FONT color="green">349</FONT> *<a name="line.349"></a> |
| <FONT color="green">350</FONT> * @param buffer the text content to match against, do not change<a name="line.350"></a> |
| <FONT color="green">351</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.351"></a> |
| <FONT color="green">352</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.352"></a> |
| <FONT color="green">353</FONT> * @param bufferEnd the end index of the active buffer, valid for buffer<a name="line.353"></a> |
| <FONT color="green">354</FONT> * @return the number of matching characters, zero for no match<a name="line.354"></a> |
| <FONT color="green">355</FONT> */<a name="line.355"></a> |
| <FONT color="green">356</FONT> @Override<a name="line.356"></a> |
| <FONT color="green">357</FONT> public int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd) {<a name="line.357"></a> |
| <FONT color="green">358</FONT> int len = chars.length;<a name="line.358"></a> |
| <FONT color="green">359</FONT> if (pos + len > bufferEnd) {<a name="line.359"></a> |
| <FONT color="green">360</FONT> return 0;<a name="line.360"></a> |
| <FONT color="green">361</FONT> }<a name="line.361"></a> |
| <FONT color="green">362</FONT> for (int i = 0; i < chars.length; i++, pos++) {<a name="line.362"></a> |
| <FONT color="green">363</FONT> if (chars[i] != buffer[pos]) {<a name="line.363"></a> |
| <FONT color="green">364</FONT> return 0;<a name="line.364"></a> |
| <FONT color="green">365</FONT> }<a name="line.365"></a> |
| <FONT color="green">366</FONT> }<a name="line.366"></a> |
| <FONT color="green">367</FONT> return len;<a name="line.367"></a> |
| <FONT color="green">368</FONT> }<a name="line.368"></a> |
| <FONT color="green">369</FONT> }<a name="line.369"></a> |
| <FONT color="green">370</FONT> <a name="line.370"></a> |
| <FONT color="green">371</FONT> //-----------------------------------------------------------------------<a name="line.371"></a> |
| <FONT color="green">372</FONT> /**<a name="line.372"></a> |
| <FONT color="green">373</FONT> * Class used to match no characters.<a name="line.373"></a> |
| <FONT color="green">374</FONT> */<a name="line.374"></a> |
| <FONT color="green">375</FONT> static final class NoMatcher extends StrMatcher {<a name="line.375"></a> |
| <FONT color="green">376</FONT> <a name="line.376"></a> |
| <FONT color="green">377</FONT> /**<a name="line.377"></a> |
| <FONT color="green">378</FONT> * Constructs a new instance of <code>NoMatcher</code>.<a name="line.378"></a> |
| <FONT color="green">379</FONT> */<a name="line.379"></a> |
| <FONT color="green">380</FONT> NoMatcher() {<a name="line.380"></a> |
| <FONT color="green">381</FONT> super();<a name="line.381"></a> |
| <FONT color="green">382</FONT> }<a name="line.382"></a> |
| <FONT color="green">383</FONT> <a name="line.383"></a> |
| <FONT color="green">384</FONT> /**<a name="line.384"></a> |
| <FONT color="green">385</FONT> * Always returns <code>false</code>.<a name="line.385"></a> |
| <FONT color="green">386</FONT> *<a name="line.386"></a> |
| <FONT color="green">387</FONT> * @param buffer the text content to match against, do not change<a name="line.387"></a> |
| <FONT color="green">388</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.388"></a> |
| <FONT color="green">389</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.389"></a> |
| <FONT color="green">390</FONT> * @param bufferEnd the end index of the active buffer, valid for buffer<a name="line.390"></a> |
| <FONT color="green">391</FONT> * @return the number of matching characters, zero for no match<a name="line.391"></a> |
| <FONT color="green">392</FONT> */<a name="line.392"></a> |
| <FONT color="green">393</FONT> @Override<a name="line.393"></a> |
| <FONT color="green">394</FONT> public int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd) {<a name="line.394"></a> |
| <FONT color="green">395</FONT> return 0;<a name="line.395"></a> |
| <FONT color="green">396</FONT> }<a name="line.396"></a> |
| <FONT color="green">397</FONT> }<a name="line.397"></a> |
| <FONT color="green">398</FONT> <a name="line.398"></a> |
| <FONT color="green">399</FONT> //-----------------------------------------------------------------------<a name="line.399"></a> |
| <FONT color="green">400</FONT> /**<a name="line.400"></a> |
| <FONT color="green">401</FONT> * Class used to match whitespace as per trim().<a name="line.401"></a> |
| <FONT color="green">402</FONT> */<a name="line.402"></a> |
| <FONT color="green">403</FONT> static final class TrimMatcher extends StrMatcher {<a name="line.403"></a> |
| <FONT color="green">404</FONT> <a name="line.404"></a> |
| <FONT color="green">405</FONT> /**<a name="line.405"></a> |
| <FONT color="green">406</FONT> * Constructs a new instance of <code>TrimMatcher</code>.<a name="line.406"></a> |
| <FONT color="green">407</FONT> */<a name="line.407"></a> |
| <FONT color="green">408</FONT> TrimMatcher() {<a name="line.408"></a> |
| <FONT color="green">409</FONT> super();<a name="line.409"></a> |
| <FONT color="green">410</FONT> }<a name="line.410"></a> |
| <FONT color="green">411</FONT> <a name="line.411"></a> |
| <FONT color="green">412</FONT> /**<a name="line.412"></a> |
| <FONT color="green">413</FONT> * Returns whether or not the given character matches.<a name="line.413"></a> |
| <FONT color="green">414</FONT> *<a name="line.414"></a> |
| <FONT color="green">415</FONT> * @param buffer the text content to match against, do not change<a name="line.415"></a> |
| <FONT color="green">416</FONT> * @param pos the starting position for the match, valid for buffer<a name="line.416"></a> |
| <FONT color="green">417</FONT> * @param bufferStart the first active index in the buffer, valid for buffer<a name="line.417"></a> |
| <FONT color="green">418</FONT> * @param bufferEnd the end index of the active buffer, valid for buffer<a name="line.418"></a> |
| <FONT color="green">419</FONT> * @return the number of matching characters, zero for no match<a name="line.419"></a> |
| <FONT color="green">420</FONT> */<a name="line.420"></a> |
| <FONT color="green">421</FONT> @Override<a name="line.421"></a> |
| <FONT color="green">422</FONT> public int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd) {<a name="line.422"></a> |
| <FONT color="green">423</FONT> return buffer[pos] <= ' ' ? 1 : 0;<a name="line.423"></a> |
| <FONT color="green">424</FONT> }<a name="line.424"></a> |
| <FONT color="green">425</FONT> }<a name="line.425"></a> |
| <FONT color="green">426</FONT> <a name="line.426"></a> |
| <FONT color="green">427</FONT> }<a name="line.427"></a> |
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