refactory: added UI removed from core plugin.

[phpeclipse.git] / net.sourceforge.phpeclipse.ui / src / net / sourceforge / phpeclipse / xml / ui / internal / text / EntityRule.java

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/EntityRule.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/EntityRule.java
new file mode 100644 (file)
index 0000000..efedb0f
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/EntityRule.java
@@ -0,0 +1,75 @@
+/*
+ * 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;
+       }
+}