package org.eclipse.jdt.internal.debug.ui; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved. | |
*/ | |
import org.eclipse.jface.text.BadLocationException; | |
import org.eclipse.jface.text.IDocument; | |
import org.eclipse.jface.text.IRegion; | |
import org.eclipse.jface.text.Region; | |
public class JavaWordFinder { | |
public static IRegion findWord(IDocument document, int offset) { | |
int start= -1; | |
int end= -1; | |
try { | |
int pos= offset; | |
char c; | |
while (pos >= 0) { | |
c= document.getChar(pos); | |
if (!Character.isJavaIdentifierPart(c)) | |
break; | |
--pos; | |
} | |
start= pos; | |
pos= offset; | |
int length= document.getLength(); | |
while (pos < length) { | |
c= document.getChar(pos); | |
if (!Character.isJavaIdentifierPart(c)) | |
break; | |
++pos; | |
} | |
end= pos; | |
} catch (BadLocationException x) { | |
} | |
if (start > -1 && end > -1) { | |
if (start == offset && end == offset) | |
return new Region(offset, 0); | |
else if (start == offset) | |
return new Region(start, end - start); | |
else | |
return new Region(start + 1, end - start - 1); | |
} | |
return null; | |
} | |
} |