Mercurial > projects > dwt-addons
diff dwtx/jface/text/rules/Token.d @ 129:eb30df5ca28b
Added JFace Text sources
author | Frank Benoit <benoit@tionex.de> |
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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); + } +}