*** empty log message ***

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

diff --git a/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLCDATAScanner.java b/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLCDATAScanner.java
new file mode 100644 (file)
index 0000000..e99172a
--- /dev/null
+++ b/net.sourceforge.phpeclipse.xml.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/text/XMLCDATAScanner.java
@@ -0,0 +1,136 @@
+/*
+ * 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: XMLCDATAScanner.java,v 1.1 2004-09-02 18:28:03 jsurfer Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.text;
+
+import java.util.Map;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.rules.IToken;
+import org.eclipse.jface.text.rules.ITokenScanner;
+import org.eclipse.jface.text.rules.Token;
+
+import net.sourceforge.phpeclipse.xml.ui.text.IXMLSyntaxConstants;
+
+/**
+ * @author Igor Malinin
+ */
+public class XMLCDATAScanner implements ITokenScanner {
+
+       private Map tokens;
+
+       private IDocument document;
+
+       private int begin;
+
+       private int end;
+
+       private int offset;
+
+       private int length;
+
+       private int position;
+
+       public XMLCDATAScanner(Map tokens) {
+               this.tokens = tokens;
+       }
+
+       /*
+        * @see ITokenScanner#setRange(IDocument, int, int)
+        */
+       public void setRange(IDocument document, int offset, int length) {
+               this.document = document;
+
+               this.begin = offset;
+               this.end = offset + length;
+
+               this.offset = offset;
+               this.position = offset;
+               this.length = 0;
+       }
+
+       /*
+        * @see ITokenScanner#nextToken()
+        */
+       public IToken nextToken() {
+               offset += length;
+
+               if (position == begin) {
+                       position += 3; // <![
+
+                       try {
+                               if (document.get(position, 6).equals("CDATA[")) {
+                                       position += 6;
+                               }
+                       } catch (BadLocationException e) {
+                       }
+
+                       return getToken(IXMLSyntaxConstants.XML_CDATA);
+               }
+
+               if (position == end) {
+                       return getToken(null);
+               }
+
+               try {
+                       int p = end - 3;
+                       if (document.get(p, 3).equals("]]>")) {
+                               if (position == p) {
+                                       position = end;
+                                       return getToken(IXMLSyntaxConstants.XML_CDATA);
+                               }
+
+                               position = p;
+                       } else {
+                               position = end;
+                       }
+               } catch (BadLocationException e) {
+               }
+
+               return getToken(IXMLSyntaxConstants.XML_DEFAULT);
+       }
+
+       private IToken getToken(String type) {
+               length = position - offset;
+
+               if (length == 0) {
+                       return Token.EOF;
+               }
+
+               if (type == null) {
+                       return Token.UNDEFINED;
+               }
+
+               IToken token = (IToken) tokens.get(type);
+               if (token == null) {
+                       return Token.UNDEFINED;
+               }
+
+               return token;
+       }
+
+       /*
+        * @see ITokenScanner#getTokenOffset()
+        */
+       public int getTokenOffset() {
+               return offset;
+       }
+
+       /*
+        * @see ITokenScanner#getTokenLength()
+        */
+       public int getTokenLength() {
+               return length;
+       }
+}