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/*
* SIP Communicator, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license. See terms of license at gnu.org.
*/
package net.java.sip.communicator.plugin.spellcheck;
import java.text.BreakIterator;
/**
* Immutable representation of a word in the context of a document, bundling the
* bounds with the text.
*
* @author Damian Johnson
*/
class Word
{
private static final BreakIterator WORD_ITR = BreakIterator
.getWordInstance();
private final int start;
private final String text;
private final int end;
/**
* Provides the word before or after a given index. No bounds checking is
* performed.
*
* @param text text to be checked
* @param index index in which to begin search (inclusive)
* @param before search is before index if true, after otherwise
* @return index of word boundary
*/
public static synchronized Word getWord(String text, int index,
boolean before)
{
int start, end;
WORD_ITR.setText(text);
if (before)
{
start = WORD_ITR.preceding(index);
end = WORD_ITR.next();
if (start == BreakIterator.DONE)
start = 0;
}
else
{
end = WORD_ITR.following(index);
start = WORD_ITR.previous();
if (end == BreakIterator.DONE)
end = text.length() - 1;
}
return new Word(start, end, text.substring(start, end));
}
private Word(int start, int end, String text)
{
this.start = start;
this.end = end;
this.text = text;
}
public int getStart()
{
return this.start;
}
public int getEnd()
{
return this.end;
}
public String getText()
{
return this.text;
}
public String toString()
{
return this.text;
}
}
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