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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd";>
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css"
title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
+<span class="sourceLineNo">002</span> * Licensed to the Apache Software
Foundation (ASF) under one or more<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * contributor license agreements. See
the NOTICE file distributed with<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * this work for additional information
regarding copyright ownership.<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * The ASF licenses this file to You
under the Apache License, Version 2.0<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * (the "License"); you may not use this
file except in compliance with<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * the License. You may obtain a copy of
the License at<a name="line.7"></a>
+<span class="sourceLineNo">008</span> *<a name="line.8"></a>
+<span class="sourceLineNo">009</span> *
http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *<a name="line.10"></a>
+<span class="sourceLineNo">011</span> * Unless required by applicable law or
agreed to in writing, software<a name="line.11"></a>
+<span class="sourceLineNo">012</span> * distributed under the License is
distributed on an "AS IS" BASIS,<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF
ANY KIND, either express or implied.<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * See the License for the specific
language governing permissions and<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * limitations under the License.<a
name="line.15"></a>
+<span class="sourceLineNo">016</span> */<a name="line.16"></a>
+<span class="sourceLineNo">017</span><a name="line.17"></a>
+<span class="sourceLineNo">018</span>package org.apache.commons.csv;<a
name="line.18"></a>
+<span class="sourceLineNo">019</span><a name="line.19"></a>
+<span class="sourceLineNo">020</span>import java.io.Closeable;<a
name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.io.File;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.io.FileInputStream;<a
name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a
name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.InputStreamReader;<a
name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.Reader;<a
name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.io.StringReader;<a
name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.net.URL;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.nio.charset.Charset;<a
name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.ArrayList;<a
name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Arrays;<a
name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.Iterator;<a
name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.LinkedHashMap;<a
name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.List;<a
name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.Map;<a
name="line.34"></a>
+<span class="sourceLineNo">035</span>import
java.util.NoSuchElementException;<a name="line.35"></a>
+<span class="sourceLineNo">036</span><a name="line.36"></a>
+<span class="sourceLineNo">037</span>import static
org.apache.commons.csv.Token.Type.*;<a name="line.37"></a>
+<span class="sourceLineNo">038</span><a name="line.38"></a>
+<span class="sourceLineNo">039</span>/**<a name="line.39"></a>
+<span class="sourceLineNo">040</span> * Parses CSV files according to the
specified format.<a name="line.40"></a>
+<span class="sourceLineNo">041</span> *<a name="line.41"></a>
+<span class="sourceLineNo">042</span> * Because CSV appears in many different
dialects, the parser supports many formats by allowing the<a name="line.42"></a>
+<span class="sourceLineNo">043</span> * specification of a {@link
CSVFormat}.<a name="line.43"></a>
+<span class="sourceLineNo">044</span> *<a name="line.44"></a>
+<span class="sourceLineNo">045</span> * The parser works record wise. It is
not possible to go back, once a record has been parsed from the input stream.<a
name="line.45"></a>
+<span class="sourceLineNo">046</span> *<a name="line.46"></a>
+<span class="sourceLineNo">047</span> * <h2>Creating
instances</h2><a name="line.47"></a>
+<span class="sourceLineNo">048</span> * <p><a name="line.48"></a>
+<span class="sourceLineNo">049</span> * There are several static factory
methods that can be used to create instances for various types of resources:<a
name="line.49"></a>
+<span class="sourceLineNo">050</span> * </p><a name="line.50"></a>
+<span class="sourceLineNo">051</span> * <ul><a name="line.51"></a>
+<span class="sourceLineNo">052</span> * <li>{@link
#parse(java.io.File, Charset, CSVFormat)}</li><a name="line.52"></a>
+<span class="sourceLineNo">053</span> * <li>{@link #parse(String,
CSVFormat)}</li><a name="line.53"></a>
+<span class="sourceLineNo">054</span> * <li>{@link
#parse(java.net.URL, java.nio.charset.Charset, CSVFormat)}</li><a
name="line.54"></a>
+<span class="sourceLineNo">055</span> * </ul><a name="line.55"></a>
+<span class="sourceLineNo">056</span> * <p><a name="line.56"></a>
+<span class="sourceLineNo">057</span> * Alternatively parsers can also be
created by passing a {@link Reader} directly to the sole constructor.<a
name="line.57"></a>
+<span class="sourceLineNo">058</span> *<a name="line.58"></a>
+<span class="sourceLineNo">059</span> * For those who like fluent APIs,
parsers can be created using {@link CSVFormat#parse(java.io.Reader)} as a
shortcut:<a name="line.59"></a>
+<span class="sourceLineNo">060</span> * </p><a name="line.60"></a>
+<span class="sourceLineNo">061</span> * <pre><a name="line.61"></a>
+<span class="sourceLineNo">062</span> * for(CSVRecord record :
CSVFormat.EXCEL.parse(in)) {<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * ...<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * }<a name="line.64"></a>
+<span class="sourceLineNo">065</span> * </pre><a name="line.65"></a>
+<span class="sourceLineNo">066</span> *<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * <h2>Parsing record
wise</h2><a name="line.67"></a>
+<span class="sourceLineNo">068</span> * <p><a name="line.68"></a>
+<span class="sourceLineNo">069</span> * To parse a CSV input from a file, you
write:<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * </p><a name="line.70"></a>
+<span class="sourceLineNo">071</span> *<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * <pre><a name="line.72"></a>
+<span class="sourceLineNo">073</span> * File csvData = new
File(&quot;/path/to/csv&quot;);<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * CSVParser parser =
CSVParser.parse(csvData, CSVFormat.RFC4180);<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * for (CSVRecord csvRecord : parser) {<a
name="line.75"></a>
+<span class="sourceLineNo">076</span> * ...<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * }<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * </pre><a name="line.78"></a>
+<span class="sourceLineNo">079</span> *<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * <p><a name="line.80"></a>
+<span class="sourceLineNo">081</span> * This will read the parse the contents
of the file using the<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * <a
href="http://tools.ietf.org/html/rfc4180"; target="_blank">RFC 4180</a>
format.<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * </p><a name="line.83"></a>
+<span class="sourceLineNo">084</span> *<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * <p><a name="line.85"></a>
+<span class="sourceLineNo">086</span> * To parse CSV input in a format like
Excel, you write:<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * </p><a name="line.87"></a>
+<span class="sourceLineNo">088</span> *<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * <pre><a name="line.89"></a>
+<span class="sourceLineNo">090</span> * CSVParser parser =
CSVParser.parse(csvData, CSVFormat.EXCEL);<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * for (CSVRecord csvRecord : parser) {<a
name="line.91"></a>
+<span class="sourceLineNo">092</span> * ...<a name="line.92"></a>
+<span class="sourceLineNo">093</span> * }<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * </pre><a name="line.94"></a>
+<span class="sourceLineNo">095</span> *<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * <p><a name="line.96"></a>
+<span class="sourceLineNo">097</span> * If the predefined formats don't match
the format at hands, custom formats can be defined. More information about<a
name="line.97"></a>
+<span class="sourceLineNo">098</span> * customising CSVFormats is available in
{@link CSVFormat CSVFormat JavaDoc}.<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * </p><a name="line.99"></a>
+<span class="sourceLineNo">100</span> *<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * <h2>Parsing into
memory</h2><a name="line.101"></a>
+<span class="sourceLineNo">102</span> * <p><a name="line.102"></a>
+<span class="sourceLineNo">103</span> * If parsing record wise is not desired,
the contents of the input can be read completely into memory.<a
name="line.103"></a>
+<span class="sourceLineNo">104</span> * </p><a name="line.104"></a>
+<span class="sourceLineNo">105</span> *<a name="line.105"></a>
+<span class="sourceLineNo">106</span> * <pre><a name="line.106"></a>
+<span class="sourceLineNo">107</span> * Reader in = new
StringReader(&quot;a;b\nc;d&quot;);<a name="line.107"></a>
+<span class="sourceLineNo">108</span> * CSVParser parser = new CSVParser(in,
CSVFormat.EXCEL);<a name="line.108"></a>
+<span class="sourceLineNo">109</span> * List&lt;CSVRecord&gt; list =
parser.getRecords();<a name="line.109"></a>
+<span class="sourceLineNo">110</span> * </pre><a name="line.110"></a>
+<span class="sourceLineNo">111</span> *<a name="line.111"></a>
+<span class="sourceLineNo">112</span> * <p><a name="line.112"></a>
+<span class="sourceLineNo">113</span> * There are two constraints that have to
be kept in mind:<a name="line.113"></a>
+<span class="sourceLineNo">114</span> * </p><a name="line.114"></a>
+<span class="sourceLineNo">115</span> *<a name="line.115"></a>
+<span class="sourceLineNo">116</span> * <ol><a name="line.116"></a>
+<span class="sourceLineNo">117</span> * <li>Parsing into memory
starts at the current position of the parser. If you have already parsed
records from<a name="line.117"></a>
+<span class="sourceLineNo">118</span> * the input, those records will not
end up in the in memory representation of your CSV data.</li><a
name="line.118"></a>
+<span class="sourceLineNo">119</span> * <li>Parsing into memory may
consume a lot of system resources depending on the input. For example if
you're<a name="line.119"></a>
+<span class="sourceLineNo">120</span> * parsing a 150MB file of CSV data
the contents will be read completely into memory.</li><a
name="line.120"></a>
+<span class="sourceLineNo">121</span> * </ol><a name="line.121"></a>
+<span class="sourceLineNo">122</span> *<a name="line.122"></a>
+<span class="sourceLineNo">123</span> * <h2>Notes</h2><a
name="line.123"></a>
+<span class="sourceLineNo">124</span> * <p><a name="line.124"></a>
+<span class="sourceLineNo">125</span> * Internal parser state is completely
covered by the format and the reader-state.<a name="line.125"></a>
+<span class="sourceLineNo">126</span> * </p><a name="line.126"></a>
+<span class="sourceLineNo">127</span> *<a name="line.127"></a>
+<span class="sourceLineNo">128</span> * @version $Id$<a name="line.128"></a>
+<span class="sourceLineNo">129</span> *<a name="line.129"></a>
+<span class="sourceLineNo">130</span> * @see <a
href="package-summary.html">package documentation for more
details</a><a name="line.130"></a>
+<span class="sourceLineNo">131</span> */<a name="line.131"></a>
+<span class="sourceLineNo">132</span>public final class CSVParser implements
Iterable<CSVRecord>, Closeable {<a name="line.132"></a>
+<span class="sourceLineNo">133</span><a name="line.133"></a>
+<span class="sourceLineNo">134</span> /**<a name="line.134"></a>
+<span class="sourceLineNo">135</span> * Creates a parser for the given
{@link File}.<a name="line.135"></a>
+<span class="sourceLineNo">136</span> *<a name="line.136"></a>
+<span class="sourceLineNo">137</span> *
<p><strong>Note:</strong> This method internally creates a
FileReader using<a name="line.137"></a>
+<span class="sourceLineNo">138</span> * {@link
java.io.FileReader#FileReader(java.io.File)} which in turn relies on the
default encoding of the JVM that<a name="line.138"></a>
+<span class="sourceLineNo">139</span> * is executing the code. If this is
insufficient create a URL to the file and use<a name="line.139"></a>
+<span class="sourceLineNo">140</span> * {@link #parse(URL, Charset,
CSVFormat)}</p><a name="line.140"></a>
+<span class="sourceLineNo">141</span> *<a name="line.141"></a>
+<span class="sourceLineNo">142</span> * @param file<a name="line.142"></a>
+<span class="sourceLineNo">143</span> * a CSV file. Must not be
null.<a name="line.143"></a>
+<span class="sourceLineNo">144</span> * @param charset<a
name="line.144"></a>
+<span class="sourceLineNo">145</span> * A charset<a
name="line.145"></a>
+<span class="sourceLineNo">146</span> * @param format<a
name="line.146"></a>
+<span class="sourceLineNo">147</span> * the CSVFormat used for
CSV parsing. Must not be null.<a name="line.147"></a>
+<span class="sourceLineNo">148</span> * @return a new parser<a
name="line.148"></a>
+<span class="sourceLineNo">149</span> * @throws IllegalArgumentException<a
name="line.149"></a>
+<span class="sourceLineNo">150</span> * If the parameters of
the format are inconsistent or if either file or format are null.<a
name="line.150"></a>
+<span class="sourceLineNo">151</span> * @throws IOException<a
name="line.151"></a>
+<span class="sourceLineNo">152</span> * If an I/O error
occurs<a name="line.152"></a>
+<span class="sourceLineNo">153</span> */<a name="line.153"></a>
+<span class="sourceLineNo">154</span> public static CSVParser parse(final
File file, final Charset charset, final CSVFormat format) throws IOException
{<a name="line.154"></a>
+<span class="sourceLineNo">155</span> Assertions.notNull(file,
"file");<a name="line.155"></a>
+<span class="sourceLineNo">156</span> Assertions.notNull(format,
"format");<a name="line.156"></a>
+<span class="sourceLineNo">157</span> return new CSVParser(new
InputStreamReader(new FileInputStream(file), charset), format);<a
name="line.157"></a>
+<span class="sourceLineNo">158</span> }<a name="line.158"></a>
+<span class="sourceLineNo">159</span><a name="line.159"></a>
+<span class="sourceLineNo">160</span> /**<a name="line.160"></a>
+<span class="sourceLineNo">161</span> * Creates a parser for the given
{@link String}.<a name="line.161"></a>
+<span class="sourceLineNo">162</span> *<a name="line.162"></a>
+<span class="sourceLineNo">163</span> * @param string<a
name="line.163"></a>
+<span class="sourceLineNo">164</span> * a CSV string. Must not
be null.<a name="line.164"></a>
+<span class="sourceLineNo">165</span> * @param format<a
name="line.165"></a>
+<span class="sourceLineNo">166</span> * the CSVFormat used for
CSV parsing. Must not be null.<a name="line.166"></a>
+<span class="sourceLineNo">167</span> * @return a new parser<a
name="line.167"></a>
+<span class="sourceLineNo">168</span> * @throws IllegalArgumentException<a
name="line.168"></a>
+<span class="sourceLineNo">169</span> * If the parameters of
the format are inconsistent or if either string or format are null.<a
name="line.169"></a>
+<span class="sourceLineNo">170</span> * @throws IOException<a
name="line.170"></a>
+<span class="sourceLineNo">171</span> * If an I/O error
occurs<a name="line.171"></a>
+<span class="sourceLineNo">172</span> */<a name="line.172"></a>
+<span class="sourceLineNo">173</span> public static CSVParser parse(final
String string, final CSVFormat format) throws IOException {<a
name="line.173"></a>
+<span class="sourceLineNo">174</span> Assertions.notNull(string,
"string");<a name="line.174"></a>
+<span class="sourceLineNo">175</span> Assertions.notNull(format,
"format");<a name="line.175"></a>
+<span class="sourceLineNo">176</span><a name="line.176"></a>
+<span class="sourceLineNo">177</span> return new CSVParser(new
StringReader(string), format);<a name="line.177"></a>
+<span class="sourceLineNo">178</span> }<a name="line.178"></a>
+<span class="sourceLineNo">179</span><a name="line.179"></a>
+<span class="sourceLineNo">180</span> /**<a name="line.180"></a>
+<span class="sourceLineNo">181</span> * Creates a parser for the given
URL.<a name="line.181"></a>
+<span class="sourceLineNo">182</span> *<a name="line.182"></a>
+<span class="sourceLineNo">183</span> * <p><a name="line.183"></a>
+<span class="sourceLineNo">184</span> * If you do not read all records
from the given {@code url}, you should call {@link #close()} on the parser,
unless<a name="line.184"></a>
+<span class="sourceLineNo">185</span> * you close the {@code url}.<a
name="line.185"></a>
+<span class="sourceLineNo">186</span> * </p><a name="line.186"></a>
+<span class="sourceLineNo">187</span> *<a name="line.187"></a>
+<span class="sourceLineNo">188</span> * @param url<a name="line.188"></a>
+<span class="sourceLineNo">189</span> * a URL. Must not be
null.<a name="line.189"></a>
+<span class="sourceLineNo">190</span> * @param charset<a
name="line.190"></a>
+<span class="sourceLineNo">191</span> * the charset for the
resource. Must not be null.<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * @param format<a
name="line.192"></a>
+<span class="sourceLineNo">193</span> * the CSVFormat used for
CSV parsing. Must not be null.<a name="line.193"></a>
+<span class="sourceLineNo">194</span> * @return a new parser<a
name="line.194"></a>
+<span class="sourceLineNo">195</span> * @throws IllegalArgumentException<a
name="line.195"></a>
+<span class="sourceLineNo">196</span> * If the parameters of
the format are inconsistent or if either url, charset or format are null.<a
name="line.196"></a>
+<span class="sourceLineNo">197</span> * @throws IOException<a
name="line.197"></a>
+<span class="sourceLineNo">198</span> * If an I/O error
occurs<a name="line.198"></a>
+<span class="sourceLineNo">199</span> */<a name="line.199"></a>
+<span class="sourceLineNo">200</span> public static CSVParser parse(final
URL url, final Charset charset, final CSVFormat format) throws IOException {<a
name="line.200"></a>
+<span class="sourceLineNo">201</span> Assertions.notNull(url, "url");<a
name="line.201"></a>
+<span class="sourceLineNo">202</span> Assertions.notNull(charset,
"charset");<a name="line.202"></a>
+<span class="sourceLineNo">203</span> Assertions.notNull(format,
"format");<a name="line.203"></a>
+<span class="sourceLineNo">204</span><a name="line.204"></a>
+<span class="sourceLineNo">205</span> return new CSVParser(new
InputStreamReader(url.openStream(), charset), format);<a name="line.205"></a>
+<span class="sourceLineNo">206</span> }<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span> // the following objects are shared
to reduce garbage<a name="line.208"></a>
+<span class="sourceLineNo">209</span><a name="line.209"></a>
+<span class="sourceLineNo">210</span> private final CSVFormat format;<a
name="line.210"></a>
+<span class="sourceLineNo">211</span><a name="line.211"></a>
+<span class="sourceLineNo">212</span> /** A mapping of column names to
column indices */<a name="line.212"></a>
+<span class="sourceLineNo">213</span> private final Map<String,
Integer> headerMap;<a name="line.213"></a>
+<span class="sourceLineNo">214</span><a name="line.214"></a>
+<span class="sourceLineNo">215</span> private final Lexer lexer;<a
name="line.215"></a>
+<span class="sourceLineNo">216</span><a name="line.216"></a>
+<span class="sourceLineNo">217</span> /** A record buffer for getRecord().
Grows as necessary and is reused. */<a name="line.217"></a>
+<span class="sourceLineNo">218</span> private final List<String>
record = new ArrayList<String>();<a name="line.218"></a>
+<span class="sourceLineNo">219</span><a name="line.219"></a>
+<span class="sourceLineNo">220</span> /**<a name="line.220"></a>
+<span class="sourceLineNo">221</span> * The next record number to
assign.<a name="line.221"></a>
+<span class="sourceLineNo">222</span> */<a name="line.222"></a>
+<span class="sourceLineNo">223</span> private long recordNumber;<a
name="line.223"></a>
+<span class="sourceLineNo">224</span><a name="line.224"></a>
+<span class="sourceLineNo">225</span> /**<a name="line.225"></a>
+<span class="sourceLineNo">226</span> * Lexer offset when the parser does
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+<span class="sourceLineNo">228</span> */<a name="line.228"></a>
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+<span class="sourceLineNo">232</span><a name="line.232"></a>
+<span class="sourceLineNo">233</span> /**<a name="line.233"></a>
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+<span class="sourceLineNo">236</span> * <p><a name="line.236"></a>
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parser,<a name="line.237"></a>
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+<span class="sourceLineNo">243</span> * @param format<a
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+<span class="sourceLineNo">247</span> * @throws IOException<a
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+<span class="sourceLineNo">249</span> */<a name="line.249"></a>
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final CSVFormat format) throws IOException {<a name="line.250"></a>
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+<span class="sourceLineNo">253</span><a name="line.253"></a>
+<span class="sourceLineNo">254</span> /**<a name="line.254"></a>
+<span class="sourceLineNo">255</span> * Customized CSV parser using the
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+<span class="sourceLineNo">256</span> *<a name="line.256"></a>
+<span class="sourceLineNo">257</span> * <p><a name="line.257"></a>
+<span class="sourceLineNo">258</span> * If you do not read all records
from the given {@code reader}, you should call {@link #close()} on the
parser,<a name="line.258"></a>
+<span class="sourceLineNo">259</span> * unless you close the {@code
reader}.<a name="line.259"></a>
+<span class="sourceLineNo">260</span> * </p><a name="line.260"></a>
+<span class="sourceLineNo">261</span> *<a name="line.261"></a>
+<span class="sourceLineNo">262</span> * @param reader<a
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+<span class="sourceLineNo">264</span> * @param format<a
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+<span class="sourceLineNo">265</span> * the CSVFormat used for
CSV parsing. Must not be null.<a name="line.265"></a>
+<span class="sourceLineNo">266</span> * @param characterOffset<a
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parser does not start parsing at the beginning of the source.<a
name="line.267"></a>
+<span class="sourceLineNo">268</span> * @param recordNumber<a
name="line.268"></a>
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to assign<a name="line.269"></a>
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name="line.270"></a>
+<span class="sourceLineNo">271</span> * If the parameters of
the format are inconsistent or if either reader or format are null.<a
name="line.271"></a>
+<span class="sourceLineNo">272</span> * @throws IOException<a
name="line.272"></a>
+<span class="sourceLineNo">273</span> * If there is a problem
reading the header or skipping the first record<a name="line.273"></a>
+<span class="sourceLineNo">274</span> * @since 1.1<a name="line.274"></a>
+<span class="sourceLineNo">275</span> */<a name="line.275"></a>
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final CSVFormat format, long characterOffset, long recordNumber)<a
name="line.276"></a>
+<span class="sourceLineNo">277</span> throws IOException {<a
name="line.277"></a>
+<span class="sourceLineNo">278</span> Assertions.notNull(reader,
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+<span class="sourceLineNo">279</span> Assertions.notNull(format,
"format");<a name="line.279"></a>
+<span class="sourceLineNo">280</span><a name="line.280"></a>
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new ExtendedBufferedReader(reader));<a name="line.282"></a>
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characterOffset;<a name="line.284"></a>
+<span class="sourceLineNo">285</span> this.recordNumber = recordNumber
- 1;<a name="line.285"></a>
+<span class="sourceLineNo">286</span> }<a name="line.286"></a>
+<span class="sourceLineNo">287</span><a name="line.287"></a>
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this.reusableToken.content.toString();<a name="line.289"></a>
+<span class="sourceLineNo">290</span> final String nullString =
this.format.getNullString();<a name="line.290"></a>
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+<span class="sourceLineNo">292</span> this.record.add(input);<a
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+<span class="sourceLineNo">293</span> } else {<a name="line.293"></a>
+<span class="sourceLineNo">294</span>
this.record.add(input.equalsIgnoreCase(nullString) ? null : input);<a
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+<span class="sourceLineNo">297</span><a name="line.297"></a>
+<span class="sourceLineNo">298</span> /**<a name="line.298"></a>
+<span class="sourceLineNo">299</span> * Closes resources.<a
name="line.299"></a>
+<span class="sourceLineNo">300</span> *<a name="line.300"></a>
+<span class="sourceLineNo">301</span> * @throws IOException<a
name="line.301"></a>
+<span class="sourceLineNo">302</span> * If an I/O error
occurs<a name="line.302"></a>
+<span class="sourceLineNo">303</span> */<a name="line.303"></a>
+<span class="sourceLineNo">304</span> @Override<a name="line.304"></a>
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IOException {<a name="line.305"></a>
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name="line.306"></a>
+<span class="sourceLineNo">307</span> this.lexer.close();<a
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+<span class="sourceLineNo">308</span> }<a name="line.308"></a>
+<span class="sourceLineNo">309</span> }<a name="line.309"></a>
+<span class="sourceLineNo">310</span><a name="line.310"></a>
+<span class="sourceLineNo">311</span> /**<a name="line.311"></a>
+<span class="sourceLineNo">312</span> * Returns the current line number in
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+<span class="sourceLineNo">313</span> *<a name="line.313"></a>
+<span class="sourceLineNo">314</span> * <p><a name="line.314"></a>
+<span class="sourceLineNo">315</span> *
<strong>ATTENTION:</strong> If your CSV input has multi-line
values, the returned number does not correspond to<a name="line.315"></a>
+<span class="sourceLineNo">316</span> * the record number.<a
name="line.316"></a>
+<span class="sourceLineNo">317</span> * </p><a name="line.317"></a>
+<span class="sourceLineNo">318</span> *<a name="line.318"></a>
+<span class="sourceLineNo">319</span> * @return current line number<a
name="line.319"></a>
+<span class="sourceLineNo">320</span> */<a name="line.320"></a>
+<span class="sourceLineNo">321</span> public long getCurrentLineNumber()
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this.lexer.getCurrentLineNumber();<a name="line.322"></a>
+<span class="sourceLineNo">323</span> }<a name="line.323"></a>
+<span class="sourceLineNo">324</span><a name="line.324"></a>
+<span class="sourceLineNo">325</span> /**<a name="line.325"></a>
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that iterates in column order.<a name="line.326"></a>
+<span class="sourceLineNo">327</span> * <p><a name="line.327"></a>
+<span class="sourceLineNo">328</span> * The map keys are column names. The
map values are 0-based indices.<a name="line.328"></a>
+<span class="sourceLineNo">329</span> * </p><a name="line.329"></a>
+<span class="sourceLineNo">330</span> * @return a copy of the header map
that iterates in column order.<a name="line.330"></a>
+<span class="sourceLineNo">331</span> */<a name="line.331"></a>
+<span class="sourceLineNo">332</span> public Map<String, Integer>
getHeaderMap() {<a name="line.332"></a>
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null : new LinkedHashMap<String, Integer>(this.headerMap);<a
name="line.333"></a>
+<span class="sourceLineNo">334</span> }<a name="line.334"></a>
+<span class="sourceLineNo">335</span><a name="line.335"></a>
+<span class="sourceLineNo">336</span> /**<a name="line.336"></a>
+<span class="sourceLineNo">337</span> * Returns the current record number
in the input stream.<a name="line.337"></a>
+<span class="sourceLineNo">338</span> *<a name="line.338"></a>
+<span class="sourceLineNo">339</span> * <p><a name="line.339"></a>
+<span class="sourceLineNo">340</span> *
<strong>ATTENTION:</strong> If your CSV input has multi-line
values, the returned number does not correspond to<a name="line.340"></a>
+<span class="sourceLineNo">341</span> * the line number.<a
name="line.341"></a>
+<span class="sourceLineNo">342</span> * </p><a name="line.342"></a>
+<span class="sourceLineNo">343</span> *<a name="line.343"></a>
+<span class="sourceLineNo">344</span> * @return current record number<a
name="line.344"></a>
+<span class="sourceLineNo">345</span> */<a name="line.345"></a>
+<span class="sourceLineNo">346</span> public long getRecordNumber() {<a
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+<span class="sourceLineNo">347</span> return this.recordNumber;<a
name="line.347"></a>
+<span class="sourceLineNo">348</span> }<a name="line.348"></a>
+<span class="sourceLineNo">349</span><a name="line.349"></a>
+<span class="sourceLineNo">350</span> /**<a name="line.350"></a>
+<span class="sourceLineNo">351</span> * Parses the CSV input according to
the given format and returns the content as a list of<a name="line.351"></a>
+<span class="sourceLineNo">352</span> * {@link CSVRecord CSVRecords}.<a
name="line.352"></a>
+<span class="sourceLineNo">353</span> *<a name="line.353"></a>
+<span class="sourceLineNo">354</span> * <p><a name="line.354"></a>
+<span class="sourceLineNo">355</span> * The returned content starts at the
current parse-position in the stream.<a name="line.355"></a>
+<span class="sourceLineNo">356</span> * </p><a name="line.356"></a>
+<span class="sourceLineNo">357</span> *<a name="line.357"></a>
+<span class="sourceLineNo">358</span> * @return list of {@link CSVRecord
CSVRecords}, may be empty<a name="line.358"></a>
+<span class="sourceLineNo">359</span> * @throws IOException<a
name="line.359"></a>
+<span class="sourceLineNo">360</span> * on parse error or
input read-failure<a name="line.360"></a>
+<span class="sourceLineNo">361</span> */<a name="line.361"></a>
+<span class="sourceLineNo">362</span> public List<CSVRecord>
getRecords() throws IOException {<a name="line.362"></a>
+<span class="sourceLineNo">363</span> CSVRecord rec;<a
name="line.363"></a>
+<span class="sourceLineNo">364</span> List<CSVRecord> records =
new ArrayList<CSVRecord>();<a name="line.364"></a>
+<span class="sourceLineNo">365</span> while ((rec = this.nextRecord())
!= null) {<a name="line.365"></a>
+<span class="sourceLineNo">366</span> records.add(rec);<a
name="line.366"></a>
+<span class="sourceLineNo">367</span> }<a name="line.367"></a>
+<span class="sourceLineNo">368</span> return records;<a
name="line.368"></a>
+<span class="sourceLineNo">369</span> }<a name="line.369"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span> /**<a name="line.371"></a>
+<span class="sourceLineNo">372</span> * Initializes the name to index
mapping if the format defines a header.<a name="line.372"></a>
+<span class="sourceLineNo">373</span> *<a name="line.373"></a>
+<span class="sourceLineNo">374</span> * @return null if the format has no
header.<a name="line.374"></a>
+<span class="sourceLineNo">375</span> * @throws IOException if there is a
problem reading the header or skipping the first record<a name="line.375"></a>
+<span class="sourceLineNo">376</span> */<a name="line.376"></a>
+<span class="sourceLineNo">377</span> private Map<String, Integer>
initializeHeader() throws IOException {<a name="line.377"></a>
+<span class="sourceLineNo">378</span> Map<String, Integer> hdrMap
= null;<a name="line.378"></a>
+<span class="sourceLineNo">379</span> final String[] formatHeader =
this.format.getHeader();<a name="line.379"></a>
+<span class="sourceLineNo">380</span> if (formatHeader != null) {<a
name="line.380"></a>
+<span class="sourceLineNo">381</span> hdrMap = new
LinkedHashMap<String, Integer>();<a name="line.381"></a>
+<span class="sourceLineNo">382</span><a name="line.382"></a>
+<span class="sourceLineNo">383</span> String[] headerRecord =
null;<a name="line.383"></a>
+<span class="sourceLineNo">384</span> if (formatHeader.length == 0)
{<a name="line.384"></a>
+<span class="sourceLineNo">385</span> // read the header from
the first line of the file<a name="line.385"></a>
+<span class="sourceLineNo">386</span> final CSVRecord
nextRecord = this.nextRecord();<a name="line.386"></a>
+<span class="sourceLineNo">387</span> if (nextRecord != null)
{<a name="line.387"></a>
+<span class="sourceLineNo">388</span> headerRecord =
nextRecord.values();<a name="line.388"></a>
+<span class="sourceLineNo">389</span> }<a name="line.389"></a>
+<span class="sourceLineNo">390</span> } else {<a
name="line.390"></a>
+<span class="sourceLineNo">391</span> if
(this.format.getSkipHeaderRecord()) {<a name="line.391"></a>
+<span class="sourceLineNo">392</span> this.nextRecord();<a
name="line.392"></a>
+<span class="sourceLineNo">393</span> }<a name="line.393"></a>
+<span class="sourceLineNo">394</span> headerRecord =
formatHeader;<a name="line.394"></a>
+<span class="sourceLineNo">395</span> }<a name="line.395"></a>
+<span class="sourceLineNo">396</span><a name="line.396"></a>
+<span class="sourceLineNo">397</span> // build the name to index
mappings<a name="line.397"></a>
+<span class="sourceLineNo">398</span> if (headerRecord != null) {<a
name="line.398"></a>
+<span class="sourceLineNo">399</span> for (int i = 0; i <
headerRecord.length; i++) {<a name="line.399"></a>
+<span class="sourceLineNo">400</span> final String header =
headerRecord[i];<a name="line.400"></a>
+<span class="sourceLineNo">401</span> final boolean
containsHeader = hdrMap.containsKey(header);<a name="line.401"></a>
+<span class="sourceLineNo">402</span> final boolean
emptyHeader = header == null || header.trim().isEmpty();<a name="line.402"></a>
+<span class="sourceLineNo">403</span> if (containsHeader
&&<a name="line.403"></a>
+<span class="sourceLineNo">404</span> (!emptyHeader
|| (emptyHeader && !this.format.getAllowMissingColumnNames()))) {<a
name="line.404"></a>
+<span class="sourceLineNo">405</span> throw new
IllegalArgumentException("The header contains a duplicate name: \"" + header
+<a name="line.405"></a>
+<span class="sourceLineNo">406</span> "\" in "
+ Arrays.toString(headerRecord));<a name="line.406"></a>
+<span class="sourceLineNo">407</span> }<a
name="line.407"></a>
+<span class="sourceLineNo">408</span> hdrMap.put(header,
Integer.valueOf(i));<a name="line.408"></a>
+<span class="sourceLineNo">409</span> }<a name="line.409"></a>
+<span class="sourceLineNo">410</span> }<a name="line.410"></a>
+<span class="sourceLineNo">411</span> }<a name="line.411"></a>
+<span class="sourceLineNo">412</span> return hdrMap;<a
name="line.412"></a>
+<span class="sourceLineNo">413</span> }<a name="line.413"></a>
+<span class="sourceLineNo">414</span><a name="line.414"></a>
+<span class="sourceLineNo">415</span> /**<a name="line.415"></a>
+<span class="sourceLineNo">416</span> * Gets whether this parser is
closed.<a name="line.416"></a>
+<span class="sourceLineNo">417</span> *<a name="line.417"></a>
+<span class="sourceLineNo">418</span> * @return whether this parser is
closed.<a name="line.418"></a>
+<span class="sourceLineNo">419</span> */<a name="line.419"></a>
+<span class="sourceLineNo">420</span> public boolean isClosed() {<a
name="line.420"></a>
+<span class="sourceLineNo">421</span> return this.lexer.isClosed();<a
name="line.421"></a>
+<span class="sourceLineNo">422</span> }<a name="line.422"></a>
+<span class="sourceLineNo">423</span><a name="line.423"></a>
+<span class="sourceLineNo">424</span> /**<a name="line.424"></a>
+<span class="sourceLineNo">425</span> * Returns an iterator on the
records.<a name="line.425"></a>
+<span class="sourceLineNo">426</span> *<a name="line.426"></a>
+<span class="sourceLineNo">427</span> * <p>IOExceptions occurring
during the iteration are wrapped in a<a name="line.427"></a>
+<span class="sourceLineNo">428</span> * RuntimeException.<a
name="line.428"></a>
+<span class="sourceLineNo">429</span> * If the parser is closed a call to
{@code next()} will throw a<a name="line.429"></a>
+<span class="sourceLineNo">430</span> *
NoSuchElementException.</p><a name="line.430"></a>
+<span class="sourceLineNo">431</span> */<a name="line.431"></a>
+<span class="sourceLineNo">432</span> @Override<a name="line.432"></a>
+<span class="sourceLineNo">433</span> public Iterator<CSVRecord>
iterator() {<a name="line.433"></a>
+<span class="sourceLineNo">434</span> return new
Iterator<CSVRecord>() {<a name="line.434"></a>
+<span class="sourceLineNo">435</span> private CSVRecord current;<a
name="line.435"></a>
+<span class="sourceLineNo">436</span><a name="line.436"></a>
+<span class="sourceLineNo">437</span> private CSVRecord
getNextRecord() {<a name="line.437"></a>
+<span class="sourceLineNo">438</span> try {<a
name="line.438"></a>
+<span class="sourceLineNo">439</span> return
CSVParser.this.nextRecord();<a name="line.439"></a>
+<span class="sourceLineNo">440</span> } catch (final
IOException e) {<a name="line.440"></a>
+<span class="sourceLineNo">441</span> // TODO: This is not
great, throw an ISE instead?<a name="line.441"></a>
+<span class="sourceLineNo">442</span> throw new
RuntimeException(e);<a name="line.442"></a>
+<span class="sourceLineNo">443</span> }<a name="line.443"></a>
+<span class="sourceLineNo">444</span> }<a name="line.444"></a>
+<span class="sourceLineNo">445</span><a name="line.445"></a>
+<span class="sourceLineNo">446</span> @Override<a
name="line.446"></a>
+<span class="sourceLineNo">447</span> public boolean hasNext() {<a
name="line.447"></a>
+<span class="sourceLineNo">448</span> if
(CSVParser.this.isClosed()) {<a name="line.448"></a>
+<span class="sourceLineNo">449</span> return false;<a
name="line.449"></a>
+<span class="sourceLineNo">450</span> }<a name="line.450"></a>
+<span class="sourceLineNo">451</span> if (this.current == null)
{<a name="line.451"></a>
+<span class="sourceLineNo">452</span> this.current =
this.getNextRecord();<a name="line.452"></a>
+<span class="sourceLineNo">453</span> }<a name="line.453"></a>
+<span class="sourceLineNo">454</span><a name="line.454"></a>
+<span class="sourceLineNo">455</span> return this.current !=
null;<a name="line.455"></a>
+<span class="sourceLineNo">456</span> }<a name="line.456"></a>
+<span class="sourceLineNo">457</span><a name="line.457"></a>
+<span class="sourceLineNo">458</span> @Override<a
name="line.458"></a>
+<span class="sourceLineNo">459</span> public CSVRecord next() {<a
name="line.459"></a>
+<span class="sourceLineNo">460</span> if
(CSVParser.this.isClosed()) {<a name="line.460"></a>
+<span class="sourceLineNo">461</span> throw new
NoSuchElementException("CSVParser has been closed");<a name="line.461"></a>
+<span class="sourceLineNo">462</span> }<a name="line.462"></a>
+<span class="sourceLineNo">463</span> CSVRecord next =
this.current;<a name="line.463"></a>
+<span class="sourceLineNo">464</span> this.current = null;<a
name="line.464"></a>
+<span class="sourceLineNo">465</span><a name="line.465"></a>
+<span class="sourceLineNo">466</span> if (next == null) {<a
name="line.466"></a>
+<span class="sourceLineNo">467</span> // hasNext() wasn't
called before<a name="line.467"></a>
+<span class="sourceLineNo">468</span> next =
this.getNextRecord();<a name="line.468"></a>
+<span class="sourceLineNo">469</span> if (next == null) {<a
name="line.469"></a>
+<span class="sourceLineNo">470</span> throw new
NoSuchElementException("No more CSV records available");<a name="line.470"></a>
+<span class="sourceLineNo">471</span> }<a
name="line.471"></a>
+<span class="sourceLineNo">472</span> }<a name="line.472"></a>
+<span class="sourceLineNo">473</span><a name="line.473"></a>
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current point in the stream.<a name="line.485"></a>
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values, or {@code null} if the end of the stream has been reached<a
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name="line.488"></a>
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input read-failure<a name="line.489"></a>
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IOException {<a name="line.491"></a>
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name="line.492"></a>
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lexer.getCharacterPosition() + this.characterOffset;<a name="line.495"></a>
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this.lexer.nextToken(this.reusableToken);<a name="line.498"></a>
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(this.reusableToken.type) {<a name="line.499"></a>
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name="line.506"></a>
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(this.reusableToken.isReady) {<a name="line.507"></a>
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this.addRecordValue();<a name="line.508"></a>
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name="line.511"></a>
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IOException("(line " + this.getCurrentLineNumber() + ") invalid parse
sequence");<a name="line.512"></a>
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currently<a name="line.513"></a>
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name="line.516"></a>
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sb.append(Constants.LF);<a name="line.517"></a>
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sb.append(this.reusableToken.content);<a name="line.519"></a>
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name="line.522"></a>
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name="line.523"></a>
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== TOKEN);<a name="line.525"></a>
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name="line.527"></a>
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name="line.528"></a>
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null ? null : sb.toString();<a name="line.529"></a>
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CSVRecord(this.record.toArray(new String[this.record.size()]), this.headerMap,
comment,<a name="line.530"></a>
+<span class="sourceLineNo">531</span> this.recordNumber,
startCharPosition);<a name="line.531"></a>
+<span class="sourceLineNo">532</span> }<a name="line.532"></a>
+<span class="sourceLineNo">533</span> return result;<a
name="line.533"></a>
+<span class="sourceLineNo">534</span> }<a name="line.534"></a>
+<span class="sourceLineNo">535</span><a name="line.535"></a>
+<span class="sourceLineNo">536</span>}<a name="line.536"></a>
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+</div>
+</body>
+</html>
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