intial source from ttp://www.sf.net/projects/wdte

[phpeclipse.git] / archive / net.sourceforge.phpeclipse.css.ui / src / net / sourceforge / phpeclipse / css / ui / internal / text / CssWordFinder.java

diff --git a/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/text/CssWordFinder.java b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/text/CssWordFinder.java
new file mode 100644 (file)
index 0000000..ca30fd0
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+++ b/archive/net.sourceforge.phpeclipse.css.ui/src/net/sourceforge/phpeclipse/css/ui/internal/text/CssWordFinder.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2004 Widespace, OU and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     Igor Malinin - initial implementation
+ * 
+ * $Id: CssWordFinder.java,v 1.1 2004-09-02 18:11:48 jsurfer Exp $
+ */
+package net.sourceforge.phpeclipse.css.ui.internal.text;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.Region;
+
+
+/**
+ * 
+ * 
+ * @author Igor Malinin
+ */
+public class CssWordFinder {
+       public static IRegion findWord(IDocument document, int offset) {
+               int length = document.getLength();
+
+               try {
+                       int pos = offset;
+
+                       while (pos >= 0) {
+                               if (!Character.isUnicodeIdentifierPart(document.getChar(pos))) {
+                                       break;
+                               }
+                               --pos;
+                       }
+
+                       int start = pos;
+
+                       pos = offset;
+
+                       while (pos < length) {
+                               if (!Character.isUnicodeIdentifierPart(document.getChar(pos))) {
+                                       break;
+                               }
+                               ++pos;
+                       }
+
+                       int end = pos;
+
+                       if (start == offset) {
+                               return new Region(start, end - start);
+                       }
+
+                       return new Region(start + 1, end - start - 1);
+               } catch (BadLocationException x) {
+                       return null;
+               }
+       }
+}