diff dwtx/jface/text/rules/Token.d @ 129:eb30df5ca28b

Added JFace Text sources
author Frank Benoit <benoit@tionex.de>
date Sat, 23 Aug 2008 19:10:48 +0200
parents
children c4fb132a086c
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/text/rules/Token.d	Sat Aug 23 19:10:48 2008 +0200
@@ -0,0 +1,129 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+
+module dwtx.jface.text.rules.Token;
+
+import dwt.dwthelper.utils;
+
+import dwtx.core.runtime.Assert;
+
+
+/**
+ * Standard implementation of <code>IToken</code>.
+ */
+public class Token : IToken {
+
+    /** Internal token type: Undefined */
+    private static final int T_UNDEFINED= 0;
+    /** Internal token type: EOF */
+    private static final int T_EOF= 1;
+    /** Internal token type: Whitespace */
+    private static final int T_WHITESPACE= 2;
+    /** Internal token type: Others */
+    private static final int T_OTHER=   3;
+
+
+    /**
+     * Standard token: Undefined.
+     */
+    public static final IToken UNDEFINED= new Token(T_UNDEFINED);
+    /**
+     * Standard token: End Of File.
+     */
+    public static final IToken EOF= new Token(T_EOF);
+    /**
+     * Standard token: Whitespace.
+     */
+    public static final IToken WHITESPACE= new Token(T_WHITESPACE);
+
+    /**
+     * Standard token: Neither {@link #UNDEFINED}, {@link #WHITESPACE}, nor {@link #EOF}.
+     * @deprecated will be removed
+     */
+    public static final IToken OTHER= new Token(T_OTHER);
+
+    /** The type of this token */
+    private int fType;
+    /** The data associated with this token */
+    private Object fData;
+
+    /**
+     * Creates a new token according to the given specification which does not
+     * have any data attached to it.
+     *
+     * @param type the type of the token
+     * @since 2.0
+     */
+    private Token(int type) {
+        fType= type;
+        fData= null;
+    }
+
+    /**
+     * Creates a new token which represents neither undefined, whitespace, nor EOF.
+     * The newly created token has the given data attached to it.
+     *
+     * @param data the data attached to the newly created token
+     */
+    public Token(Object data) {
+        fType= T_OTHER;
+        fData= data;
+    }
+
+    /**
+     * Re-initializes the data of this token. The token may not represent
+     * undefined, whitespace, or EOF.
+     *
+     * @param data to be attached to the token
+     * @since 2.0
+     */
+    public void setData(Object data) {
+        Assert.isTrue(isOther());
+        fData= data;
+    }
+
+    /*
+     * @see IToken#getData()
+     */
+    public Object getData() {
+        return fData;
+    }
+
+    /*
+     * @see IToken#isOther()
+     */
+    public bool isOther() {
+        return (fType is T_OTHER);
+    }
+
+    /*
+     * @see IToken#isEOF()
+     */
+    public bool isEOF() {
+        return (fType is T_EOF);
+    }
+
+    /*
+     * @see IToken#isWhitespace()
+     */
+    public bool isWhitespace() {
+        return (fType is T_WHITESPACE);
+    }
+
+    /*
+     * @see IToken#isUndefined()
+     */
+    public bool isUndefined() {
+        return (fType is T_UNDEFINED);
+    }
+}