/*******************************************************************************
* Copyright (c) 2004, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsp.ui.internal.taginfo;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.Region;
/**
* Copied from org.eclipse.jdt.internal.ui.text.JavaWordFinder
*/
class JavaWordFinder {
public static IRegion findWord(IDocument document, int offset) {
return findWord(document, offset, false);
}
public static IRegion findWord(IDocument document, int offset, boolean searchQualified) {
int start= -1;
int end= -1;
try {
int pos= offset;
char c;
while (pos >= 0) {
c= document.getChar(pos);
if (searchQualified ? !Character.isJavaIdentifierPart(c) && c != '.' : !Character.isJavaIdentifierPart(c))
break;
--pos;
}
start= pos;
pos= offset;
int length= document.getLength();
while (pos < length) {
c= document.getChar(pos);
if (searchQualified ? !Character.isJavaIdentifierPart(c) && c != '.' : !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;
}
}