Returns an array of substrings of the specified string, in order, with divisions before and after any instance of the specified character.
/*
* LingPipe v. 3.9
* Copyright (C) 2003-2010 Alias-i
*
* This program is licensed under the Alias-i Royalty Free License
* Version 1 WITHOUT ANY WARRANTY, without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Alias-i
* Royalty Free License Version 1 for more details.
*
* You should have received a copy of the Alias-i Royalty Free License
* Version 1 along with this program; if not, visit
* http://alias-i.com/lingpipe/licenses/lingpipe-license-1.txt or contact
* Alias-i, Inc. at 181 North 11th Street, Suite 401, Brooklyn, NY 11211,
* +1 (718) 290-9170.
*/
//package com.aliasi.util;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.text.DecimalFormat;
/**
* Static utility methods for processing strings, characters and
* string buffers.
*
* @author Bob Carpenter
* @version 4.0.1
* @since LingPipe1.0
* @see java.lang.Character
* @see java.lang.String
* @see java.lang.StringBuilder
*/
public class Strings {
/**
* Returns an array of substrings of the specified string,
* in order, with divisions before and after any instance
* of the specified character. The returned array will always
* have at least one element. Elements in the returned array
* may be empty. The following examples illustrate this behavior:
*
* <br/><br/>
* <table border="1" cellpadding="5">
* <tr><td><b>Call</b></td><td><b>Result</b></td></tr>
* <tr>
* <td><code>split("",' ')</code></td>
* <td><code>{ "" }</code></td>
* </tr>
* <tr>
* <td><code>split("a",' ')</code></td>
* <td><code>{ "a" }</code></td>
* </tr>
* <tr>
* <td><code>split("a b",' ')</code></td>
* <td><code>{ "a", "b" }</code></td>
* </tr>
* <tr>
* <td><code>split("aaa bb cccc",' ')</code></td>
* <td><code>{ "aaa", "bb", "cccc" }</code></td>
* </tr>
* <tr>
* <td><code>split(" a",' ')</code></td>
* <td><code>{ "", "a" }</code></td>
* </tr>
* <tr>
* <td><code>split("a ",' ')</code></td>
* <td><code>{ "a", "" }</code></td>
* </tr>
* <tr>
* <td><code>split(" a ",' ')</code></td>
* <td><code>{ "", "a", "" }</code></td>
* </tr>
* </table>
*
* @param s String to split.
* @param c Character on which to split the string.
* @return The array of substrings resulting from splitting the
* specified string on the specified character.
*/
public static String[] split(String s, char c) {
char[] cs = s.toCharArray();
int tokCount = 1;
for (int i = 0; i < cs.length; ++i)
if (cs[i] == c) ++tokCount;
String[] result = new String[tokCount];
int tokIndex = 0;
int start = 0;
for (int end = 0; end < cs.length; ++end) {
if (cs[end] == c) {
result[tokIndex] = new String(cs,start,end-start);
++tokIndex;
start = end+1;
}
}
result[tokIndex] = new String(cs,start,cs.length-start);
return result;
}
}
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