1 files changed, 105 insertions, 0 deletions
diff --git a/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/JavaPartitionScanner.java b/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/JavaPartitionScanner.java
new file mode 100644
index 00000000000..54bb2edc298
--- /dev/null
+++ b/org.eclipse.ui.examples.javaeditor/Eclipse Java Editor Example/org/eclipse/ui/examples/javaeditor/JavaPartitionScanner.java
@@ -0,0 +1,105 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation 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 API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.examples.javaeditor;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.jface.text.rules.*;
+
+/**
+ * This scanner recognizes the JavaDoc comments and Java multi line comments.
+ */
+public class JavaPartitionScanner extends RuleBasedPartitionScanner {
+
+	public final static String JAVA_MULTILINE_COMMENT= "__java_multiline_comment"; //$NON-NLS-1$
+	public final static String JAVA_DOC= "__java_javadoc"; //$NON-NLS-1$
+	public final static String[] JAVA_PARTITION_TYPES= new String[] { JAVA_MULTILINE_COMMENT, JAVA_DOC };
+
+	/**
+	 * Detector for empty comments.
+	 */
+	static class EmptyCommentDetector implements IWordDetector {
+
+		/* (non-Javadoc)
+		* Method declared on IWordDetector
+	 	*/
+		public boolean isWordStart(char c) {
+			return (c == '/');
+		}
+
+		/* (non-Javadoc)
+		* Method declared on IWordDetector
+	 	*/
+		public boolean isWordPart(char c) {
+			return (c == '*' || c == '/');
+		}
+	}
+	
+	/**
+	 * 
+	 */
+	static class WordPredicateRule extends WordRule implements IPredicateRule {
+		
+		private IToken fSuccessToken;
+		
+		public WordPredicateRule(IToken successToken) {
+			super(new EmptyCommentDetector());
+			fSuccessToken= successToken;
+			addWord("/**/", fSuccessToken); //$NON-NLS-1$
+		}
+		
+		/*
+		 * @see org.eclipse.jface.text.rules.IPredicateRule#evaluate(ICharacterScanner, boolean)
+		 */
+		public IToken evaluate(ICharacterScanner scanner, boolean resume) {
+			return super.evaluate(scanner);
+		}
+
+		/*
+		 * @see org.eclipse.jface.text.rules.IPredicateRule#getSuccessToken()
+		 */
+		public IToken getSuccessToken() {
+			return fSuccessToken;
+		}
+	}
+
+	/**
+	 * Creates the partitioner and sets up the appropriate rules.
+	 */
+	public JavaPartitionScanner() {
+		super();
+
+		IToken javaDoc= new Token(JAVA_DOC);
+		IToken comment= new Token(JAVA_MULTILINE_COMMENT);
+
+		List rules= new ArrayList();
+
+		// Add rule for single line comments.
+		rules.add(new EndOfLineRule("//", Token.UNDEFINED)); //$NON-NLS-1$
+
+		// Add rule for strings and character constants.
+		rules.add(new SingleLineRule("\"", "\"", Token.UNDEFINED, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
+		rules.add(new SingleLineRule("'", "'", Token.UNDEFINED, '\\')); //$NON-NLS-2$ //$NON-NLS-1$
+
+		// Add special case word rule.
+		rules.add(new WordPredicateRule(comment));
+
+		// Add rules for multi-line comments and javadoc.
+		rules.add(new MultiLineRule("/**", "*/", javaDoc, (char) 0, true)); //$NON-NLS-1$ //$NON-NLS-2$
+		rules.add(new MultiLineRule("/*", "*/", comment, (char) 0, true)); //$NON-NLS-1$ //$NON-NLS-2$
+
+		IPredicateRule[] result= new IPredicateRule[rules.size()];
+		rules.toArray(result);
+		setPredicateRules(result);
+	}
+}