X-Git-Url: http://secure.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/php/HTMLWordExtractor.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/php/HTMLWordExtractor.java
new file mode 100644
index 0000000..9968341
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/phpeditor/php/HTMLWordExtractor.java
@@ -0,0 +1,91 @@
+/**********************************************************************
+ Copyright (c) 2000, 2002 IBM Corp. 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:
+ IBM Corporation - Initial implementation
+ www.phpeclipse.de
+ **********************************************************************/
+package net.sourceforge.phpeclipse.phpeditor.php;
+
+import net.sourceforge.phpdt.internal.compiler.parser.Scanner;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.swt.graphics.Point;
+
+/**
+ * Detects HTML words in documents.
+ */
+public class HTMLWordExtractor {
+
+	/**
+	 * Find the location of the word at offset in document.
+	 * 
+	 * @returns Point - x is the start position, y is the end position. Return
+	 *          null if it is not found.
+	 * @param document
+	 *            the document being searched.
+	 * @param offset -
+	 *            the position to start searching from.
+	 */
+	public static Point findWord(IDocument document, int offset) {
+
+		int start = -1;
+		int end = -1;
+
+		try {
+
+			int position = offset;
+			char character = ' ';
+
+			while (position >= 0) {
+				character = document.getChar(position);
+				if (!Scanner.isPHPIdentifierPart(character))
+					break;
+				--position;
+			}
+			if ((position > 0) && (character == '<')) {
+				--position;
+			}
+			if ((position > 1) && (character == '/')) {
+				character = document.getChar(position - 1);
+				if (character == '<') {
+					--position;
+					--position;
+				}
+			}
+			if (position == offset) {
+				return null;
+			}
+
+			start = position;
+
+			position = offset;
+			int length = document.getLength();
+			character = ' ';
+
+			while (position < length) {
+				character = document.getChar(position);
+				if (!Scanner.isPHPIdentifierPart(character))
+					break;
+				++position;
+			}
+			if ((position < length) && (character == '>')) {
+				++position;
+			}
+			start++;
+			end = position;
+
+			if (end > start)
+				return new Point(start, end - start);
+
+		} catch (BadLocationException x) {
+		}
+
+		return null;
+	}
+}