| 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; |
| } |
| } |