1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #ifndef ADC_TKP2_HXX 29 #define ADC_TKP2_HXX 30 31 // USED SERVICES 32 // BASE CLASSES 33 // COMPONENTS 34 class CharacterSource; 35 class TkpContext; 36 // PARAMETRS 37 38 39 40 /** This is the interface for parser classes, which get a sequence of Token s from 41 a text. 42 43 Start() starts to parse the text from the given i_rSource. 44 GetNextToken() returns a Token on the heap as long as there are 45 still characters in the text left. The last time GetNextToken() 46 returns NULL. 47 48 The algorithms for parsing tokens from the text are an issue of 49 the derived classes. 50 */ 51 class TokenParse2 52 { 53 public: 54 // LIFECYCLE 55 TokenParse2(); 56 virtual ~TokenParse2() {} 57 58 // OPERATIONS 59 virtual void Start( 60 CharacterSource & 61 i_rSource ); 62 63 /** @short Gets the next identifiable token out of the 64 source code. 65 @return true, if there was passed a valid token. 66 false, if the parsed stream is finished or 67 an error occured. 68 */ 69 bool GetNextToken(); 70 71 private: 72 virtual void SetStartContext() = 0; 73 virtual void SetCurrentContext( 74 TkpContext & io_rContext ) = 0; 75 virtual TkpContext & 76 CurrentContext() = 0; 77 // DATA 78 CharacterSource * pChars; 79 }; 80 81 82 #endif 83 84 85