--- /dev/null
+/*
+ * Copyright (c) 2002-2004 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 contribution
+ *
+ * $Id: EntityRule.java,v 1.1 2004-09-02 18:28:03 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.text;
+
+import org.eclipse.jface.text.rules.ICharacterScanner;
+import org.eclipse.jface.text.rules.IRule;
+import org.eclipse.jface.text.rules.IToken;
+import org.eclipse.jface.text.rules.Token;
+
+/**
+ * Rule detecting XML or DTD entities.
+ *
+ * @author Igor Malinin
+ */
+public class EntityRule implements IRule {
+
+ private static NameDetector detector = new NameDetector();
+
+ private char start;
+
+ private IToken token;
+
+ public EntityRule(char start, IToken token) {
+ this.start = start;
+ this.token = token;
+ }
+
+ public IToken evaluate(ICharacterScanner scanner) {
+ int ch = scanner.read();
+
+ if (ch == start) {
+ ch = scanner.read();
+ if (ch == ICharacterScanner.EOF) {
+ scanner.unread();
+ return token;
+ }
+ if (ch == ';') {
+ return token;
+ }
+ if (!detector.isWordStart((char) ch)) {
+ scanner.unread();
+ return token;
+ }
+
+ while (true) {
+ ch = scanner.read();
+ if (ch == ICharacterScanner.EOF) {
+ scanner.unread();
+ return token;
+ }
+ if (ch == ';') {
+ return token;
+ }
+ if (!detector.isWordPart((char) ch)) {
+ scanner.unread();
+ return token;
+ }
+ }
+ }
+ scanner.unread();
+
+ return Token.UNDEFINED;
+ }
+}