You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@commons.apache.org by br...@apache.org on 2015/04/26 12:18:28 UTC
svn commit: r949214 [13/35] - in
/websites/production/commons/content/sandbox/commons-text: ./ apidocs/
apidocs/org/apache/commons/text/diff/
apidocs/org/apache/commons/text/diff/class-use/
apidocs/org/apache/commons/text/names/ apidocs/org/apache/comm...
Modified: websites/production/commons/content/sandbox/commons-text/apidocs/src-html/org/apache/commons/text/diff/StringsComparator.html
==============================================================================
--- websites/production/commons/content/sandbox/commons-text/apidocs/src-html/org/apache/commons/text/diff/StringsComparator.html (original)
+++ websites/production/commons/content/sandbox/commons-text/apidocs/src-html/org/apache/commons/text/diff/StringsComparator.html Sun Apr 26 10:18:25 2015
@@ -1,5 +1,5 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
-<html lang="en">
+<html lang="de">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
@@ -56,288 +56,286 @@
<span class="sourceLineNo">048</span> * @see EditScript<a name="line.48"></a>
<span class="sourceLineNo">049</span> * @see EditCommand<a name="line.49"></a>
<span class="sourceLineNo">050</span> * @see CommandVisitor<a name="line.50"></a>
-<span class="sourceLineNo">051</span> *<a name="line.51"></a>
-<span class="sourceLineNo">052</span> * @since 1.0<a name="line.52"></a>
-<span class="sourceLineNo">053</span> */<a name="line.53"></a>
-<span class="sourceLineNo">054</span>public class StringsComparator {<a name="line.54"></a>
-<span class="sourceLineNo">055</span><a name="line.55"></a>
-<span class="sourceLineNo">056</span> /**<a name="line.56"></a>
-<span class="sourceLineNo">057</span> * First character sequence.<a name="line.57"></a>
-<span class="sourceLineNo">058</span> */<a name="line.58"></a>
-<span class="sourceLineNo">059</span> private final String left;<a name="line.59"></a>
-<span class="sourceLineNo">060</span> /**<a name="line.60"></a>
-<span class="sourceLineNo">061</span> * Second character sequence.<a name="line.61"></a>
-<span class="sourceLineNo">062</span> */<a name="line.62"></a>
-<span class="sourceLineNo">063</span> private final String right;<a name="line.63"></a>
-<span class="sourceLineNo">064</span> /**<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * Temporary array.<a name="line.65"></a>
-<span class="sourceLineNo">066</span> */<a name="line.66"></a>
-<span class="sourceLineNo">067</span> private final int[] vDown;<a name="line.67"></a>
-<span class="sourceLineNo">068</span> /**<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * Temporary array.<a name="line.69"></a>
-<span class="sourceLineNo">070</span> */<a name="line.70"></a>
-<span class="sourceLineNo">071</span> private final int[] vUp;<a name="line.71"></a>
-<span class="sourceLineNo">072</span><a name="line.72"></a>
-<span class="sourceLineNo">073</span> /**<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * Simple constructor.<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * <p><a name="line.75"></a>
-<span class="sourceLineNo">076</span> * Creates a new instance of StringsComparator.<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * </p><a name="line.77"></a>
-<span class="sourceLineNo">078</span> * <p><a name="line.78"></a>
-<span class="sourceLineNo">079</span> * It is <em>guaranteed</em> that the comparisons will always be done as<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * <code>o1.equals(o2)</code> where <code>o1</code> belongs to the first<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * sequence and <code>o2</code> belongs to the second sequence. This can be<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * important if subclassing is used for some elements in the first sequence<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * and the <code>equals</code> method is specialized.<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * </p><a name="line.84"></a>
-<span class="sourceLineNo">085</span> *<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * @param left first character sequence to be compared<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * @param right second character sequence to be compared<a name="line.87"></a>
-<span class="sourceLineNo">088</span> */<a name="line.88"></a>
-<span class="sourceLineNo">089</span> public StringsComparator(String left, String right) {<a name="line.89"></a>
-<span class="sourceLineNo">090</span> this.left = left;<a name="line.90"></a>
-<span class="sourceLineNo">091</span> this.right = right;<a name="line.91"></a>
-<span class="sourceLineNo">092</span><a name="line.92"></a>
-<span class="sourceLineNo">093</span> final int size = left.length() + right.length() + 2;<a name="line.93"></a>
-<span class="sourceLineNo">094</span> vDown = new int[size];<a name="line.94"></a>
-<span class="sourceLineNo">095</span> vUp = new int[size];<a name="line.95"></a>
-<span class="sourceLineNo">096</span> }<a name="line.96"></a>
-<span class="sourceLineNo">097</span><a name="line.97"></a>
-<span class="sourceLineNo">098</span> /**<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * Get the {@link EditScript} object.<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * <p><a name="line.100"></a>
-<span class="sourceLineNo">101</span> * It is guaranteed that the objects embedded in the {@link InsertCommand<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * insert commands} come from the second sequence and that the objects<a name="line.102"></a>
-<span class="sourceLineNo">103</span> * embedded in either the {@link DeleteCommand delete commands} or<a name="line.103"></a>
-<span class="sourceLineNo">104</span> * {@link KeepCommand keep commands} come from the first sequence. This can<a name="line.104"></a>
-<span class="sourceLineNo">105</span> * be important if subclassing is used for some elements in the first<a name="line.105"></a>
-<span class="sourceLineNo">106</span> * sequence and the <code>equals</code> method is specialized.<a name="line.106"></a>
-<span class="sourceLineNo">107</span> * </p><a name="line.107"></a>
-<span class="sourceLineNo">108</span> *<a name="line.108"></a>
-<span class="sourceLineNo">109</span> * @return the edit script resulting from the comparison of the two<a name="line.109"></a>
-<span class="sourceLineNo">110</span> * sequences<a name="line.110"></a>
-<span class="sourceLineNo">111</span> */<a name="line.111"></a>
-<span class="sourceLineNo">112</span> public EditScript<Character> getScript() {<a name="line.112"></a>
-<span class="sourceLineNo">113</span> final EditScript<Character> script = new EditScript<Character>();<a name="line.113"></a>
-<span class="sourceLineNo">114</span> buildScript(0, left.length(), 0, right.length(), script);<a name="line.114"></a>
-<span class="sourceLineNo">115</span> return script;<a name="line.115"></a>
-<span class="sourceLineNo">116</span> }<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span> /**<a name="line.118"></a>
-<span class="sourceLineNo">119</span> * Build an edit script.<a name="line.119"></a>
-<span class="sourceLineNo">120</span> *<a name="line.120"></a>
-<span class="sourceLineNo">121</span> * @param start1 the begin of the first sequence to be compared<a name="line.121"></a>
-<span class="sourceLineNo">122</span> * @param end1 the end of the first sequence to be compared<a name="line.122"></a>
-<span class="sourceLineNo">123</span> * @param start2 the begin of the second sequence to be compared<a name="line.123"></a>
-<span class="sourceLineNo">124</span> * @param end2 the end of the second sequence to be compared<a name="line.124"></a>
-<span class="sourceLineNo">125</span> * @param script the edited script<a name="line.125"></a>
-<span class="sourceLineNo">126</span> */<a name="line.126"></a>
-<span class="sourceLineNo">127</span> private void buildScript(final int start1, final int end1, final int start2, final int end2,<a name="line.127"></a>
-<span class="sourceLineNo">128</span> final EditScript<Character> script) {<a name="line.128"></a>
-<span class="sourceLineNo">129</span> final Snake middle = getMiddleSnake(start1, end1, start2, end2);<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span> if (middle == null<a name="line.131"></a>
-<span class="sourceLineNo">132</span> || middle.getStart() == end1 && middle.getDiag() == end1 - end2<a name="line.132"></a>
-<span class="sourceLineNo">133</span> || middle.getEnd() == start1 && middle.getDiag() == start1 - start2) {<a name="line.133"></a>
-<span class="sourceLineNo">134</span><a name="line.134"></a>
-<span class="sourceLineNo">135</span> int i = start1;<a name="line.135"></a>
-<span class="sourceLineNo">136</span> int j = start2;<a name="line.136"></a>
-<span class="sourceLineNo">137</span> while (i < end1 || j < end2) {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> if (i < end1 && j < end2 && left.charAt(i) == right.charAt(j)) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span> script.append(new KeepCommand<Character>(left.charAt(i)));<a name="line.139"></a>
-<span class="sourceLineNo">140</span> ++i;<a name="line.140"></a>
-<span class="sourceLineNo">141</span> ++j;<a name="line.141"></a>
-<span class="sourceLineNo">142</span> } else {<a name="line.142"></a>
-<span class="sourceLineNo">143</span> if (end1 - start1 > end2 - start2) {<a name="line.143"></a>
-<span class="sourceLineNo">144</span> script.append(new DeleteCommand<Character>(left.charAt(i)));<a name="line.144"></a>
-<span class="sourceLineNo">145</span> ++i;<a name="line.145"></a>
-<span class="sourceLineNo">146</span> } else {<a name="line.146"></a>
-<span class="sourceLineNo">147</span> script.append(new InsertCommand<Character>(right.charAt(j)));<a name="line.147"></a>
-<span class="sourceLineNo">148</span> ++j;<a name="line.148"></a>
-<span class="sourceLineNo">149</span> }<a name="line.149"></a>
-<span class="sourceLineNo">150</span> }<a name="line.150"></a>
-<span class="sourceLineNo">151</span> }<a name="line.151"></a>
+<span class="sourceLineNo">051</span> */<a name="line.51"></a>
+<span class="sourceLineNo">052</span>public class StringsComparator {<a name="line.52"></a>
+<span class="sourceLineNo">053</span><a name="line.53"></a>
+<span class="sourceLineNo">054</span> /**<a name="line.54"></a>
+<span class="sourceLineNo">055</span> * First character sequence.<a name="line.55"></a>
+<span class="sourceLineNo">056</span> */<a name="line.56"></a>
+<span class="sourceLineNo">057</span> private final String left;<a name="line.57"></a>
+<span class="sourceLineNo">058</span> /**<a name="line.58"></a>
+<span class="sourceLineNo">059</span> * Second character sequence.<a name="line.59"></a>
+<span class="sourceLineNo">060</span> */<a name="line.60"></a>
+<span class="sourceLineNo">061</span> private final String right;<a name="line.61"></a>
+<span class="sourceLineNo">062</span> /**<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * Temporary array.<a name="line.63"></a>
+<span class="sourceLineNo">064</span> */<a name="line.64"></a>
+<span class="sourceLineNo">065</span> private final int[] vDown;<a name="line.65"></a>
+<span class="sourceLineNo">066</span> /**<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * Temporary array.<a name="line.67"></a>
+<span class="sourceLineNo">068</span> */<a name="line.68"></a>
+<span class="sourceLineNo">069</span> private final int[] vUp;<a name="line.69"></a>
+<span class="sourceLineNo">070</span><a name="line.70"></a>
+<span class="sourceLineNo">071</span> /**<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * Simple constructor.<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * <p><a name="line.73"></a>
+<span class="sourceLineNo">074</span> * Creates a new instance of StringsComparator.<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * </p><a name="line.75"></a>
+<span class="sourceLineNo">076</span> * <p><a name="line.76"></a>
+<span class="sourceLineNo">077</span> * It is <em>guaranteed</em> that the comparisons will always be done as<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * <code>o1.equals(o2)</code> where <code>o1</code> belongs to the first<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * sequence and <code>o2</code> belongs to the second sequence. This can be<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * important if subclassing is used for some elements in the first sequence<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * and the <code>equals</code> method is specialized.<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * </p><a name="line.82"></a>
+<span class="sourceLineNo">083</span> *<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * @param left first character sequence to be compared<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * @param right second character sequence to be compared<a name="line.85"></a>
+<span class="sourceLineNo">086</span> */<a name="line.86"></a>
+<span class="sourceLineNo">087</span> public StringsComparator(String left, String right) {<a name="line.87"></a>
+<span class="sourceLineNo">088</span> this.left = left;<a name="line.88"></a>
+<span class="sourceLineNo">089</span> this.right = right;<a name="line.89"></a>
+<span class="sourceLineNo">090</span><a name="line.90"></a>
+<span class="sourceLineNo">091</span> final int size = left.length() + right.length() + 2;<a name="line.91"></a>
+<span class="sourceLineNo">092</span> vDown = new int[size];<a name="line.92"></a>
+<span class="sourceLineNo">093</span> vUp = new int[size];<a name="line.93"></a>
+<span class="sourceLineNo">094</span> }<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span> /**<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * Get the {@link EditScript} object.<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * <p><a name="line.98"></a>
+<span class="sourceLineNo">099</span> * It is guaranteed that the objects embedded in the {@link InsertCommand<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * insert commands} come from the second sequence and that the objects<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * embedded in either the {@link DeleteCommand delete commands} or<a name="line.101"></a>
+<span class="sourceLineNo">102</span> * {@link KeepCommand keep commands} come from the first sequence. This can<a name="line.102"></a>
+<span class="sourceLineNo">103</span> * be important if subclassing is used for some elements in the first<a name="line.103"></a>
+<span class="sourceLineNo">104</span> * sequence and the <code>equals</code> method is specialized.<a name="line.104"></a>
+<span class="sourceLineNo">105</span> * </p><a name="line.105"></a>
+<span class="sourceLineNo">106</span> *<a name="line.106"></a>
+<span class="sourceLineNo">107</span> * @return the edit script resulting from the comparison of the two<a name="line.107"></a>
+<span class="sourceLineNo">108</span> * sequences<a name="line.108"></a>
+<span class="sourceLineNo">109</span> */<a name="line.109"></a>
+<span class="sourceLineNo">110</span> public EditScript<Character> getScript() {<a name="line.110"></a>
+<span class="sourceLineNo">111</span> final EditScript<Character> script = new EditScript<Character>();<a name="line.111"></a>
+<span class="sourceLineNo">112</span> buildScript(0, left.length(), 0, right.length(), script);<a name="line.112"></a>
+<span class="sourceLineNo">113</span> return script;<a name="line.113"></a>
+<span class="sourceLineNo">114</span> }<a name="line.114"></a>
+<span class="sourceLineNo">115</span><a name="line.115"></a>
+<span class="sourceLineNo">116</span> /**<a name="line.116"></a>
+<span class="sourceLineNo">117</span> * Build an edit script.<a name="line.117"></a>
+<span class="sourceLineNo">118</span> *<a name="line.118"></a>
+<span class="sourceLineNo">119</span> * @param start1 the begin of the first sequence to be compared<a name="line.119"></a>
+<span class="sourceLineNo">120</span> * @param end1 the end of the first sequence to be compared<a name="line.120"></a>
+<span class="sourceLineNo">121</span> * @param start2 the begin of the second sequence to be compared<a name="line.121"></a>
+<span class="sourceLineNo">122</span> * @param end2 the end of the second sequence to be compared<a name="line.122"></a>
+<span class="sourceLineNo">123</span> * @param script the edited script<a name="line.123"></a>
+<span class="sourceLineNo">124</span> */<a name="line.124"></a>
+<span class="sourceLineNo">125</span> private void buildScript(final int start1, final int end1, final int start2, final int end2,<a name="line.125"></a>
+<span class="sourceLineNo">126</span> final EditScript<Character> script) {<a name="line.126"></a>
+<span class="sourceLineNo">127</span> final Snake middle = getMiddleSnake(start1, end1, start2, end2);<a name="line.127"></a>
+<span class="sourceLineNo">128</span><a name="line.128"></a>
+<span class="sourceLineNo">129</span> if (middle == null<a name="line.129"></a>
+<span class="sourceLineNo">130</span> || middle.getStart() == end1 && middle.getDiag() == end1 - end2<a name="line.130"></a>
+<span class="sourceLineNo">131</span> || middle.getEnd() == start1 && middle.getDiag() == start1 - start2) {<a name="line.131"></a>
+<span class="sourceLineNo">132</span><a name="line.132"></a>
+<span class="sourceLineNo">133</span> int i = start1;<a name="line.133"></a>
+<span class="sourceLineNo">134</span> int j = start2;<a name="line.134"></a>
+<span class="sourceLineNo">135</span> while (i < end1 || j < end2) {<a name="line.135"></a>
+<span class="sourceLineNo">136</span> if (i < end1 && j < end2 && left.charAt(i) == right.charAt(j)) {<a name="line.136"></a>
+<span class="sourceLineNo">137</span> script.append(new KeepCommand<Character>(left.charAt(i)));<a name="line.137"></a>
+<span class="sourceLineNo">138</span> ++i;<a name="line.138"></a>
+<span class="sourceLineNo">139</span> ++j;<a name="line.139"></a>
+<span class="sourceLineNo">140</span> } else {<a name="line.140"></a>
+<span class="sourceLineNo">141</span> if (end1 - start1 > end2 - start2) {<a name="line.141"></a>
+<span class="sourceLineNo">142</span> script.append(new DeleteCommand<Character>(left.charAt(i)));<a name="line.142"></a>
+<span class="sourceLineNo">143</span> ++i;<a name="line.143"></a>
+<span class="sourceLineNo">144</span> } else {<a name="line.144"></a>
+<span class="sourceLineNo">145</span> script.append(new InsertCommand<Character>(right.charAt(j)));<a name="line.145"></a>
+<span class="sourceLineNo">146</span> ++j;<a name="line.146"></a>
+<span class="sourceLineNo">147</span> }<a name="line.147"></a>
+<span class="sourceLineNo">148</span> }<a name="line.148"></a>
+<span class="sourceLineNo">149</span> }<a name="line.149"></a>
+<span class="sourceLineNo">150</span><a name="line.150"></a>
+<span class="sourceLineNo">151</span> } else {<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
-<span class="sourceLineNo">153</span> } else {<a name="line.153"></a>
-<span class="sourceLineNo">154</span><a name="line.154"></a>
-<span class="sourceLineNo">155</span> buildScript(start1, middle.getStart(),<a name="line.155"></a>
-<span class="sourceLineNo">156</span> start2, middle.getStart() - middle.getDiag(),<a name="line.156"></a>
-<span class="sourceLineNo">157</span> script);<a name="line.157"></a>
-<span class="sourceLineNo">158</span> for (int i = middle.getStart(); i < middle.getEnd(); ++i) {<a name="line.158"></a>
-<span class="sourceLineNo">159</span> script.append(new KeepCommand<Character>(left.charAt(i)));<a name="line.159"></a>
-<span class="sourceLineNo">160</span> }<a name="line.160"></a>
-<span class="sourceLineNo">161</span> buildScript(middle.getEnd(), end1,<a name="line.161"></a>
-<span class="sourceLineNo">162</span> middle.getEnd() - middle.getDiag(), end2,<a name="line.162"></a>
-<span class="sourceLineNo">163</span> script);<a name="line.163"></a>
-<span class="sourceLineNo">164</span> }<a name="line.164"></a>
-<span class="sourceLineNo">165</span> }<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span> /**<a name="line.167"></a>
-<span class="sourceLineNo">168</span> * Get the middle snake corresponding to two subsequences of the<a name="line.168"></a>
-<span class="sourceLineNo">169</span> * main sequences.<a name="line.169"></a>
-<span class="sourceLineNo">170</span> * <p><a name="line.170"></a>
-<span class="sourceLineNo">171</span> * The snake is found using the MYERS Algorithm (this algorithms has<a name="line.171"></a>
-<span class="sourceLineNo">172</span> * also been implemented in the GNU diff program). This algorithm is<a name="line.172"></a>
-<span class="sourceLineNo">173</span> * explained in Eugene Myers article:<a name="line.173"></a>
-<span class="sourceLineNo">174</span> * <a href="http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps"><a name="line.174"></a>
-<span class="sourceLineNo">175</span> * An O(ND) Difference Algorithm and Its Variations</a>.<a name="line.175"></a>
-<span class="sourceLineNo">176</span> * </p><a name="line.176"></a>
-<span class="sourceLineNo">177</span> *<a name="line.177"></a>
-<span class="sourceLineNo">178</span> * @param start1 the begin of the first sequence to be compared<a name="line.178"></a>
-<span class="sourceLineNo">179</span> * @param end1 the end of the first sequence to be compared<a name="line.179"></a>
-<span class="sourceLineNo">180</span> * @param start2 the begin of the second sequence to be compared<a name="line.180"></a>
-<span class="sourceLineNo">181</span> * @param end2 the end of the second sequence to be compared<a name="line.181"></a>
-<span class="sourceLineNo">182</span> * @return the middle snake<a name="line.182"></a>
-<span class="sourceLineNo">183</span> */<a name="line.183"></a>
-<span class="sourceLineNo">184</span> private Snake getMiddleSnake(int start1, int end1, int start2, int end2) {<a name="line.184"></a>
-<span class="sourceLineNo">185</span> // Myers Algorithm<a name="line.185"></a>
-<span class="sourceLineNo">186</span> // Initialisations<a name="line.186"></a>
-<span class="sourceLineNo">187</span> final int m = end1 - start1;<a name="line.187"></a>
-<span class="sourceLineNo">188</span> final int n = end2 - start2;<a name="line.188"></a>
-<span class="sourceLineNo">189</span> if (m == 0 || n == 0) {<a name="line.189"></a>
-<span class="sourceLineNo">190</span> return null;<a name="line.190"></a>
-<span class="sourceLineNo">191</span> }<a name="line.191"></a>
-<span class="sourceLineNo">192</span><a name="line.192"></a>
-<span class="sourceLineNo">193</span> final int delta = m - n;<a name="line.193"></a>
-<span class="sourceLineNo">194</span> final int sum = n + m;<a name="line.194"></a>
-<span class="sourceLineNo">195</span> final int offset = (sum % 2 == 0 ? sum : sum + 1) / 2;<a name="line.195"></a>
-<span class="sourceLineNo">196</span> vDown[1 + offset] = start1;<a name="line.196"></a>
-<span class="sourceLineNo">197</span> vUp[1 + offset] = end1 + 1;<a name="line.197"></a>
-<span class="sourceLineNo">198</span><a name="line.198"></a>
-<span class="sourceLineNo">199</span> for (int d = 0; d <= offset; ++d) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span> // Down<a name="line.200"></a>
-<span class="sourceLineNo">201</span> for (int k = -d; k <= d; k += 2) {<a name="line.201"></a>
-<span class="sourceLineNo">202</span> // First step<a name="line.202"></a>
-<span class="sourceLineNo">203</span><a name="line.203"></a>
-<span class="sourceLineNo">204</span> final int i = k + offset;<a name="line.204"></a>
-<span class="sourceLineNo">205</span> if (k == -d || k != d && vDown[i - 1] < vDown[i + 1]) {<a name="line.205"></a>
-<span class="sourceLineNo">206</span> vDown[i] = vDown[i + 1];<a name="line.206"></a>
-<span class="sourceLineNo">207</span> } else {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> vDown[i] = vDown[i - 1] + 1;<a name="line.208"></a>
-<span class="sourceLineNo">209</span> }<a name="line.209"></a>
-<span class="sourceLineNo">210</span><a name="line.210"></a>
-<span class="sourceLineNo">211</span> int x = vDown[i];<a name="line.211"></a>
-<span class="sourceLineNo">212</span> int y = x - start1 + start2 - k;<a name="line.212"></a>
-<span class="sourceLineNo">213</span><a name="line.213"></a>
-<span class="sourceLineNo">214</span> while (x < end1 && y < end2 && left.charAt(x) == right.charAt(y)) {<a name="line.214"></a>
-<span class="sourceLineNo">215</span> vDown[i] = ++x;<a name="line.215"></a>
-<span class="sourceLineNo">216</span> ++y;<a name="line.216"></a>
-<span class="sourceLineNo">217</span> }<a name="line.217"></a>
-<span class="sourceLineNo">218</span> // Second step<a name="line.218"></a>
-<span class="sourceLineNo">219</span> if (delta % 2 != 0 && delta - d <= k && k <= delta + d) {<a name="line.219"></a>
-<span class="sourceLineNo">220</span> if (vUp[i - delta] <= vDown[i]) {<a name="line.220"></a>
-<span class="sourceLineNo">221</span> return buildSnake(vUp[i - delta], k + start1 - start2, end1, end2);<a name="line.221"></a>
-<span class="sourceLineNo">222</span> }<a name="line.222"></a>
-<span class="sourceLineNo">223</span> }<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> // Up<a name="line.226"></a>
-<span class="sourceLineNo">227</span> for (int k = delta - d; k <= delta + d; k += 2) {<a name="line.227"></a>
-<span class="sourceLineNo">228</span> // First step<a name="line.228"></a>
-<span class="sourceLineNo">229</span> final int i = k + offset - delta;<a name="line.229"></a>
-<span class="sourceLineNo">230</span> if (k == delta - d<a name="line.230"></a>
-<span class="sourceLineNo">231</span> || k != delta + d && vUp[i + 1] <= vUp[i - 1]) {<a name="line.231"></a>
-<span class="sourceLineNo">232</span> vUp[i] = vUp[i + 1] - 1;<a name="line.232"></a>
-<span class="sourceLineNo">233</span> } else {<a name="line.233"></a>
-<span class="sourceLineNo">234</span> vUp[i] = vUp[i - 1];<a name="line.234"></a>
-<span class="sourceLineNo">235</span> }<a name="line.235"></a>
-<span class="sourceLineNo">236</span><a name="line.236"></a>
-<span class="sourceLineNo">237</span> int x = vUp[i] - 1;<a name="line.237"></a>
-<span class="sourceLineNo">238</span> int y = x - start1 + start2 - k;<a name="line.238"></a>
-<span class="sourceLineNo">239</span> while (x >= start1 && y >= start2<a name="line.239"></a>
-<span class="sourceLineNo">240</span> && left.charAt(x) == right.charAt(y)) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span> vUp[i] = x--;<a name="line.241"></a>
-<span class="sourceLineNo">242</span> y--;<a name="line.242"></a>
-<span class="sourceLineNo">243</span> }<a name="line.243"></a>
-<span class="sourceLineNo">244</span> // Second step<a name="line.244"></a>
-<span class="sourceLineNo">245</span> if (delta % 2 == 0 && -d <= k && k <= d) {<a name="line.245"></a>
-<span class="sourceLineNo">246</span> if (vUp[i] <= vDown[i + delta]) {<a name="line.246"></a>
-<span class="sourceLineNo">247</span> return buildSnake(vUp[i], k + start1 - start2, end1, end2);<a name="line.247"></a>
-<span class="sourceLineNo">248</span> }<a name="line.248"></a>
-<span class="sourceLineNo">249</span> }<a name="line.249"></a>
-<span class="sourceLineNo">250</span> }<a name="line.250"></a>
-<span class="sourceLineNo">251</span> }<a name="line.251"></a>
-<span class="sourceLineNo">252</span><a name="line.252"></a>
-<span class="sourceLineNo">253</span> // this should not happen<a name="line.253"></a>
-<span class="sourceLineNo">254</span> throw new RuntimeException("Internal Error");<a name="line.254"></a>
-<span class="sourceLineNo">255</span> }<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span> /**<a name="line.257"></a>
-<span class="sourceLineNo">258</span> * Build a snake.<a name="line.258"></a>
-<span class="sourceLineNo">259</span> *<a name="line.259"></a>
-<span class="sourceLineNo">260</span> * @param start the value of the start of the snake<a name="line.260"></a>
-<span class="sourceLineNo">261</span> * @param diag the value of the diagonal of the snake<a name="line.261"></a>
-<span class="sourceLineNo">262</span> * @param end1 the value of the end of the first sequence to be compared<a name="line.262"></a>
-<span class="sourceLineNo">263</span> * @param end2 the value of the end of the second sequence to be compared<a name="line.263"></a>
-<span class="sourceLineNo">264</span> * @return the snake built<a name="line.264"></a>
-<span class="sourceLineNo">265</span> */<a name="line.265"></a>
-<span class="sourceLineNo">266</span> private Snake buildSnake(final int start, final int diag, final int end1, final int end2) {<a name="line.266"></a>
-<span class="sourceLineNo">267</span> int end = start;<a name="line.267"></a>
-<span class="sourceLineNo">268</span> while (end - diag < end2<a name="line.268"></a>
-<span class="sourceLineNo">269</span> && end < end1<a name="line.269"></a>
-<span class="sourceLineNo">270</span> && left.charAt(end) == right.charAt(end - diag)) {<a name="line.270"></a>
-<span class="sourceLineNo">271</span> ++end;<a name="line.271"></a>
-<span class="sourceLineNo">272</span> }<a name="line.272"></a>
-<span class="sourceLineNo">273</span> return new Snake(start, end, diag);<a name="line.273"></a>
-<span class="sourceLineNo">274</span> }<a name="line.274"></a>
-<span class="sourceLineNo">275</span><a name="line.275"></a>
-<span class="sourceLineNo">276</span> /**<a name="line.276"></a>
-<span class="sourceLineNo">277</span> * This class is a simple placeholder to hold the end part of a path<a name="line.277"></a>
-<span class="sourceLineNo">278</span> * under construction in a {@link StringsComparator StringsComparator}.<a name="line.278"></a>
-<span class="sourceLineNo">279</span> */<a name="line.279"></a>
-<span class="sourceLineNo">280</span> private static class Snake {<a name="line.280"></a>
-<span class="sourceLineNo">281</span><a name="line.281"></a>
-<span class="sourceLineNo">282</span> /** Start index. */<a name="line.282"></a>
-<span class="sourceLineNo">283</span> private final int start;<a name="line.283"></a>
-<span class="sourceLineNo">284</span><a name="line.284"></a>
-<span class="sourceLineNo">285</span> /** End index. */<a name="line.285"></a>
-<span class="sourceLineNo">286</span> private final int end;<a name="line.286"></a>
-<span class="sourceLineNo">287</span><a name="line.287"></a>
-<span class="sourceLineNo">288</span> /** Diagonal number. */<a name="line.288"></a>
-<span class="sourceLineNo">289</span> private final int diag;<a name="line.289"></a>
-<span class="sourceLineNo">290</span><a name="line.290"></a>
-<span class="sourceLineNo">291</span> /**<a name="line.291"></a>
-<span class="sourceLineNo">292</span> * Simple constructor. Creates a new instance of Snake with specified indices.<a name="line.292"></a>
-<span class="sourceLineNo">293</span> *<a name="line.293"></a>
-<span class="sourceLineNo">294</span> * @param start start index of the snake<a name="line.294"></a>
-<span class="sourceLineNo">295</span> * @param end end index of the snake<a name="line.295"></a>
-<span class="sourceLineNo">296</span> * @param diag diagonal number<a name="line.296"></a>
-<span class="sourceLineNo">297</span> */<a name="line.297"></a>
-<span class="sourceLineNo">298</span> public Snake(final int start, final int end, final int diag) {<a name="line.298"></a>
-<span class="sourceLineNo">299</span> this.start = start;<a name="line.299"></a>
-<span class="sourceLineNo">300</span> this.end = end;<a name="line.300"></a>
-<span class="sourceLineNo">301</span> this.diag = diag;<a name="line.301"></a>
-<span class="sourceLineNo">302</span> }<a name="line.302"></a>
-<span class="sourceLineNo">303</span><a name="line.303"></a>
-<span class="sourceLineNo">304</span> /**<a name="line.304"></a>
-<span class="sourceLineNo">305</span> * Get the start index of the snake.<a name="line.305"></a>
-<span class="sourceLineNo">306</span> *<a name="line.306"></a>
-<span class="sourceLineNo">307</span> * @return start index of the snake<a name="line.307"></a>
-<span class="sourceLineNo">308</span> */<a name="line.308"></a>
-<span class="sourceLineNo">309</span> public int getStart() {<a name="line.309"></a>
-<span class="sourceLineNo">310</span> return start;<a name="line.310"></a>
-<span class="sourceLineNo">311</span> }<a name="line.311"></a>
-<span class="sourceLineNo">312</span><a name="line.312"></a>
-<span class="sourceLineNo">313</span> /**<a name="line.313"></a>
-<span class="sourceLineNo">314</span> * Get the end index of the snake.<a name="line.314"></a>
-<span class="sourceLineNo">315</span> *<a name="line.315"></a>
-<span class="sourceLineNo">316</span> * @return end index of the snake<a name="line.316"></a>
-<span class="sourceLineNo">317</span> */<a name="line.317"></a>
-<span class="sourceLineNo">318</span> public int getEnd() {<a name="line.318"></a>
-<span class="sourceLineNo">319</span> return end;<a name="line.319"></a>
-<span class="sourceLineNo">320</span> }<a name="line.320"></a>
-<span class="sourceLineNo">321</span><a name="line.321"></a>
-<span class="sourceLineNo">322</span> /**<a name="line.322"></a>
-<span class="sourceLineNo">323</span> * Get the diagonal number of the snake.<a name="line.323"></a>
-<span class="sourceLineNo">324</span> *<a name="line.324"></a>
-<span class="sourceLineNo">325</span> * @return diagonal number of the snake<a name="line.325"></a>
-<span class="sourceLineNo">326</span> */<a name="line.326"></a>
-<span class="sourceLineNo">327</span> public int getDiag() {<a name="line.327"></a>
-<span class="sourceLineNo">328</span> return diag;<a name="line.328"></a>
-<span class="sourceLineNo">329</span> }<a name="line.329"></a>
-<span class="sourceLineNo">330</span> }<a name="line.330"></a>
-<span class="sourceLineNo">331</span><a name="line.331"></a>
-<span class="sourceLineNo">332</span>}<a name="line.332"></a>
+<span class="sourceLineNo">153</span> buildScript(start1, middle.getStart(),<a name="line.153"></a>
+<span class="sourceLineNo">154</span> start2, middle.getStart() - middle.getDiag(),<a name="line.154"></a>
+<span class="sourceLineNo">155</span> script);<a name="line.155"></a>
+<span class="sourceLineNo">156</span> for (int i = middle.getStart(); i < middle.getEnd(); ++i) {<a name="line.156"></a>
+<span class="sourceLineNo">157</span> script.append(new KeepCommand<Character>(left.charAt(i)));<a name="line.157"></a>
+<span class="sourceLineNo">158</span> }<a name="line.158"></a>
+<span class="sourceLineNo">159</span> buildScript(middle.getEnd(), end1,<a name="line.159"></a>
+<span class="sourceLineNo">160</span> middle.getEnd() - middle.getDiag(), end2,<a name="line.160"></a>
+<span class="sourceLineNo">161</span> script);<a name="line.161"></a>
+<span class="sourceLineNo">162</span> }<a name="line.162"></a>
+<span class="sourceLineNo">163</span> }<a name="line.163"></a>
+<span class="sourceLineNo">164</span><a name="line.164"></a>
+<span class="sourceLineNo">165</span> /**<a name="line.165"></a>
+<span class="sourceLineNo">166</span> * Get the middle snake corresponding to two subsequences of the<a name="line.166"></a>
+<span class="sourceLineNo">167</span> * main sequences.<a name="line.167"></a>
+<span class="sourceLineNo">168</span> * <p><a name="line.168"></a>
+<span class="sourceLineNo">169</span> * The snake is found using the MYERS Algorithm (this algorithms has<a name="line.169"></a>
+<span class="sourceLineNo">170</span> * also been implemented in the GNU diff program). This algorithm is<a name="line.170"></a>
+<span class="sourceLineNo">171</span> * explained in Eugene Myers article:<a name="line.171"></a>
+<span class="sourceLineNo">172</span> * <a href="http://www.cs.arizona.edu/people/gene/PAPERS/diff.ps"><a name="line.172"></a>
+<span class="sourceLineNo">173</span> * An O(ND) Difference Algorithm and Its Variations</a>.<a name="line.173"></a>
+<span class="sourceLineNo">174</span> * </p><a name="line.174"></a>
+<span class="sourceLineNo">175</span> *<a name="line.175"></a>
+<span class="sourceLineNo">176</span> * @param start1 the begin of the first sequence to be compared<a name="line.176"></a>
+<span class="sourceLineNo">177</span> * @param end1 the end of the first sequence to be compared<a name="line.177"></a>
+<span class="sourceLineNo">178</span> * @param start2 the begin of the second sequence to be compared<a name="line.178"></a>
+<span class="sourceLineNo">179</span> * @param end2 the end of the second sequence to be compared<a name="line.179"></a>
+<span class="sourceLineNo">180</span> * @return the middle snake<a name="line.180"></a>
+<span class="sourceLineNo">181</span> */<a name="line.181"></a>
+<span class="sourceLineNo">182</span> private Snake getMiddleSnake(int start1, int end1, int start2, int end2) {<a name="line.182"></a>
+<span class="sourceLineNo">183</span> // Myers Algorithm<a name="line.183"></a>
+<span class="sourceLineNo">184</span> // Initialisations<a name="line.184"></a>
+<span class="sourceLineNo">185</span> final int m = end1 - start1;<a name="line.185"></a>
+<span class="sourceLineNo">186</span> final int n = end2 - start2;<a name="line.186"></a>
+<span class="sourceLineNo">187</span> if (m == 0 || n == 0) {<a name="line.187"></a>
+<span class="sourceLineNo">188</span> return null;<a name="line.188"></a>
+<span class="sourceLineNo">189</span> }<a name="line.189"></a>
+<span class="sourceLineNo">190</span><a name="line.190"></a>
+<span class="sourceLineNo">191</span> final int delta = m - n;<a name="line.191"></a>
+<span class="sourceLineNo">192</span> final int sum = n + m;<a name="line.192"></a>
+<span class="sourceLineNo">193</span> final int offset = (sum % 2 == 0 ? sum : sum + 1) / 2;<a name="line.193"></a>
+<span class="sourceLineNo">194</span> vDown[1 + offset] = start1;<a name="line.194"></a>
+<span class="sourceLineNo">195</span> vUp[1 + offset] = end1 + 1;<a name="line.195"></a>
+<span class="sourceLineNo">196</span><a name="line.196"></a>
+<span class="sourceLineNo">197</span> for (int d = 0; d <= offset; ++d) {<a name="line.197"></a>
+<span class="sourceLineNo">198</span> // Down<a name="line.198"></a>
+<span class="sourceLineNo">199</span> for (int k = -d; k <= d; k += 2) {<a name="line.199"></a>
+<span class="sourceLineNo">200</span> // First step<a name="line.200"></a>
+<span class="sourceLineNo">201</span><a name="line.201"></a>
+<span class="sourceLineNo">202</span> final int i = k + offset;<a name="line.202"></a>
+<span class="sourceLineNo">203</span> if (k == -d || k != d && vDown[i - 1] < vDown[i + 1]) {<a name="line.203"></a>
+<span class="sourceLineNo">204</span> vDown[i] = vDown[i + 1];<a name="line.204"></a>
+<span class="sourceLineNo">205</span> } else {<a name="line.205"></a>
+<span class="sourceLineNo">206</span> vDown[i] = vDown[i - 1] + 1;<a name="line.206"></a>
+<span class="sourceLineNo">207</span> }<a name="line.207"></a>
+<span class="sourceLineNo">208</span><a name="line.208"></a>
+<span class="sourceLineNo">209</span> int x = vDown[i];<a name="line.209"></a>
+<span class="sourceLineNo">210</span> int y = x - start1 + start2 - k;<a name="line.210"></a>
+<span class="sourceLineNo">211</span><a name="line.211"></a>
+<span class="sourceLineNo">212</span> while (x < end1 && y < end2 && left.charAt(x) == right.charAt(y)) {<a name="line.212"></a>
+<span class="sourceLineNo">213</span> vDown[i] = ++x;<a name="line.213"></a>
+<span class="sourceLineNo">214</span> ++y;<a name="line.214"></a>
+<span class="sourceLineNo">215</span> }<a name="line.215"></a>
+<span class="sourceLineNo">216</span> // Second step<a name="line.216"></a>
+<span class="sourceLineNo">217</span> if (delta % 2 != 0 && delta - d <= k && k <= delta + d) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span> if (vUp[i - delta] <= vDown[i]) {<a name="line.218"></a>
+<span class="sourceLineNo">219</span> return buildSnake(vUp[i - delta], k + start1 - start2, end1, end2);<a name="line.219"></a>
+<span class="sourceLineNo">220</span> }<a name="line.220"></a>
+<span class="sourceLineNo">221</span> }<a name="line.221"></a>
+<span class="sourceLineNo">222</span> }<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
+<span class="sourceLineNo">224</span> // Up<a name="line.224"></a>
+<span class="sourceLineNo">225</span> for (int k = delta - d; k <= delta + d; k += 2) {<a name="line.225"></a>
+<span class="sourceLineNo">226</span> // First step<a name="line.226"></a>
+<span class="sourceLineNo">227</span> final int i = k + offset - delta;<a name="line.227"></a>
+<span class="sourceLineNo">228</span> if (k == delta - d<a name="line.228"></a>
+<span class="sourceLineNo">229</span> || k != delta + d && vUp[i + 1] <= vUp[i - 1]) {<a name="line.229"></a>
+<span class="sourceLineNo">230</span> vUp[i] = vUp[i + 1] - 1;<a name="line.230"></a>
+<span class="sourceLineNo">231</span> } else {<a name="line.231"></a>
+<span class="sourceLineNo">232</span> vUp[i] = vUp[i - 1];<a name="line.232"></a>
+<span class="sourceLineNo">233</span> }<a name="line.233"></a>
+<span class="sourceLineNo">234</span><a name="line.234"></a>
+<span class="sourceLineNo">235</span> int x = vUp[i] - 1;<a name="line.235"></a>
+<span class="sourceLineNo">236</span> int y = x - start1 + start2 - k;<a name="line.236"></a>
+<span class="sourceLineNo">237</span> while (x >= start1 && y >= start2<a name="line.237"></a>
+<span class="sourceLineNo">238</span> && left.charAt(x) == right.charAt(y)) {<a name="line.238"></a>
+<span class="sourceLineNo">239</span> vUp[i] = x--;<a name="line.239"></a>
+<span class="sourceLineNo">240</span> y--;<a name="line.240"></a>
+<span class="sourceLineNo">241</span> }<a name="line.241"></a>
+<span class="sourceLineNo">242</span> // Second step<a name="line.242"></a>
+<span class="sourceLineNo">243</span> if (delta % 2 == 0 && -d <= k && k <= d) {<a name="line.243"></a>
+<span class="sourceLineNo">244</span> if (vUp[i] <= vDown[i + delta]) {<a name="line.244"></a>
+<span class="sourceLineNo">245</span> return buildSnake(vUp[i], k + start1 - start2, end1, end2);<a name="line.245"></a>
+<span class="sourceLineNo">246</span> }<a name="line.246"></a>
+<span class="sourceLineNo">247</span> }<a name="line.247"></a>
+<span class="sourceLineNo">248</span> }<a name="line.248"></a>
+<span class="sourceLineNo">249</span> }<a name="line.249"></a>
+<span class="sourceLineNo">250</span><a name="line.250"></a>
+<span class="sourceLineNo">251</span> // this should not happen<a name="line.251"></a>
+<span class="sourceLineNo">252</span> throw new RuntimeException("Internal Error");<a name="line.252"></a>
+<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> /**<a name="line.255"></a>
+<span class="sourceLineNo">256</span> * Build a snake.<a name="line.256"></a>
+<span class="sourceLineNo">257</span> *<a name="line.257"></a>
+<span class="sourceLineNo">258</span> * @param start the value of the start of the snake<a name="line.258"></a>
+<span class="sourceLineNo">259</span> * @param diag the value of the diagonal of the snake<a name="line.259"></a>
+<span class="sourceLineNo">260</span> * @param end1 the value of the end of the first sequence to be compared<a name="line.260"></a>
+<span class="sourceLineNo">261</span> * @param end2 the value of the end of the second sequence to be compared<a name="line.261"></a>
+<span class="sourceLineNo">262</span> * @return the snake built<a name="line.262"></a>
+<span class="sourceLineNo">263</span> */<a name="line.263"></a>
+<span class="sourceLineNo">264</span> private Snake buildSnake(final int start, final int diag, final int end1, final int end2) {<a name="line.264"></a>
+<span class="sourceLineNo">265</span> int end = start;<a name="line.265"></a>
+<span class="sourceLineNo">266</span> while (end - diag < end2<a name="line.266"></a>
+<span class="sourceLineNo">267</span> && end < end1<a name="line.267"></a>
+<span class="sourceLineNo">268</span> && left.charAt(end) == right.charAt(end - diag)) {<a name="line.268"></a>
+<span class="sourceLineNo">269</span> ++end;<a name="line.269"></a>
+<span class="sourceLineNo">270</span> }<a name="line.270"></a>
+<span class="sourceLineNo">271</span> return new Snake(start, end, diag);<a name="line.271"></a>
+<span class="sourceLineNo">272</span> }<a name="line.272"></a>
+<span class="sourceLineNo">273</span><a name="line.273"></a>
+<span class="sourceLineNo">274</span> /**<a name="line.274"></a>
+<span class="sourceLineNo">275</span> * This class is a simple placeholder to hold the end part of a path<a name="line.275"></a>
+<span class="sourceLineNo">276</span> * under construction in a {@link StringsComparator StringsComparator}.<a name="line.276"></a>
+<span class="sourceLineNo">277</span> */<a name="line.277"></a>
+<span class="sourceLineNo">278</span> private static class Snake {<a name="line.278"></a>
+<span class="sourceLineNo">279</span><a name="line.279"></a>
+<span class="sourceLineNo">280</span> /** Start index. */<a name="line.280"></a>
+<span class="sourceLineNo">281</span> private final int start;<a name="line.281"></a>
+<span class="sourceLineNo">282</span><a name="line.282"></a>
+<span class="sourceLineNo">283</span> /** End index. */<a name="line.283"></a>
+<span class="sourceLineNo">284</span> private final int end;<a name="line.284"></a>
+<span class="sourceLineNo">285</span><a name="line.285"></a>
+<span class="sourceLineNo">286</span> /** Diagonal number. */<a name="line.286"></a>
+<span class="sourceLineNo">287</span> private final int diag;<a name="line.287"></a>
+<span class="sourceLineNo">288</span><a name="line.288"></a>
+<span class="sourceLineNo">289</span> /**<a name="line.289"></a>
+<span class="sourceLineNo">290</span> * Simple constructor. Creates a new instance of Snake with specified indices.<a name="line.290"></a>
+<span class="sourceLineNo">291</span> *<a name="line.291"></a>
+<span class="sourceLineNo">292</span> * @param start start index of the snake<a name="line.292"></a>
+<span class="sourceLineNo">293</span> * @param end end index of the snake<a name="line.293"></a>
+<span class="sourceLineNo">294</span> * @param diag diagonal number<a name="line.294"></a>
+<span class="sourceLineNo">295</span> */<a name="line.295"></a>
+<span class="sourceLineNo">296</span> public Snake(final int start, final int end, final int diag) {<a name="line.296"></a>
+<span class="sourceLineNo">297</span> this.start = start;<a name="line.297"></a>
+<span class="sourceLineNo">298</span> this.end = end;<a name="line.298"></a>
+<span class="sourceLineNo">299</span> this.diag = diag;<a name="line.299"></a>
+<span class="sourceLineNo">300</span> }<a name="line.300"></a>
+<span class="sourceLineNo">301</span><a name="line.301"></a>
+<span class="sourceLineNo">302</span> /**<a name="line.302"></a>
+<span class="sourceLineNo">303</span> * Get the start index of the snake.<a name="line.303"></a>
+<span class="sourceLineNo">304</span> *<a name="line.304"></a>
+<span class="sourceLineNo">305</span> * @return start index of the snake<a name="line.305"></a>
+<span class="sourceLineNo">306</span> */<a name="line.306"></a>
+<span class="sourceLineNo">307</span> public int getStart() {<a name="line.307"></a>
+<span class="sourceLineNo">308</span> return start;<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> * Get the end index of the snake.<a name="line.312"></a>
+<span class="sourceLineNo">313</span> *<a name="line.313"></a>
+<span class="sourceLineNo">314</span> * @return end index of the snake<a name="line.314"></a>
+<span class="sourceLineNo">315</span> */<a name="line.315"></a>
+<span class="sourceLineNo">316</span> public int getEnd() {<a name="line.316"></a>
+<span class="sourceLineNo">317</span> return end;<a name="line.317"></a>
+<span class="sourceLineNo">318</span> }<a name="line.318"></a>
+<span class="sourceLineNo">319</span><a name="line.319"></a>
+<span class="sourceLineNo">320</span> /**<a name="line.320"></a>
+<span class="sourceLineNo">321</span> * Get the diagonal number of the snake.<a name="line.321"></a>
+<span class="sourceLineNo">322</span> *<a name="line.322"></a>
+<span class="sourceLineNo">323</span> * @return diagonal number of the snake<a name="line.323"></a>
+<span class="sourceLineNo">324</span> */<a name="line.324"></a>
+<span class="sourceLineNo">325</span> public int getDiag() {<a name="line.325"></a>
+<span class="sourceLineNo">326</span> return diag;<a name="line.326"></a>
+<span class="sourceLineNo">327</span> }<a name="line.327"></a>
+<span class="sourceLineNo">328</span> }<a name="line.328"></a>
+<span class="sourceLineNo">329</span><a name="line.329"></a>
+<span class="sourceLineNo">330</span>}<a name="line.330"></a>
@@ -401,4 +399,4 @@
</pre>
</div>
</body>
-</html>
+</html>
\ No newline at end of file