1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef ADC_TKP_HXX 29*cdf0e10cSrcweir #define ADC_TKP_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir // USED SERVICES 32*cdf0e10cSrcweir // BASE CLASSES 33*cdf0e10cSrcweir // COMPONENTS 34*cdf0e10cSrcweir class CharacterSource; 35*cdf0e10cSrcweir class TkpContext; 36*cdf0e10cSrcweir // PARAMETRS 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir /** This is the interface for parser classes, which get a sequence of tokens from 41*cdf0e10cSrcweir a text. 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir Start() starts to parse the text from the given i_rSource. 44*cdf0e10cSrcweir GetNextToken() returns a Token on the heap as long as there are 45*cdf0e10cSrcweir still characters in the text left. This can be checked by 46*cdf0e10cSrcweir HasMore(). 47*cdf0e10cSrcweir 48*cdf0e10cSrcweir The algorithms for parsing tokens from the text are an issue of 49*cdf0e10cSrcweir the derived classes. 50*cdf0e10cSrcweir */ 51*cdf0e10cSrcweir #if 0 52*cdf0e10cSrcweir /** 53*cdf0e10cSrcweir Parsing can be interrupted for a different source by PushSource(). 54*cdf0e10cSrcweir The parsing before interruption is continued after PopSource(). 55*cdf0e10cSrcweir */ 56*cdf0e10cSrcweir #endif // 0 57*cdf0e10cSrcweir 58*cdf0e10cSrcweir class TokenParser 59*cdf0e10cSrcweir { 60*cdf0e10cSrcweir public: 61*cdf0e10cSrcweir // LIFECYCLE 62*cdf0e10cSrcweir TokenParser(); 63*cdf0e10cSrcweir virtual ~TokenParser() {} 64*cdf0e10cSrcweir 65*cdf0e10cSrcweir // OPERATIONS 66*cdf0e10cSrcweir /** Start parsing a character source. Any previously parsed sources 67*cdf0e10cSrcweir are discarded. 68*cdf0e10cSrcweir */ 69*cdf0e10cSrcweir virtual void Start( 70*cdf0e10cSrcweir CharacterSource & 71*cdf0e10cSrcweir i_rSource ); 72*cdf0e10cSrcweir 73*cdf0e10cSrcweir /** @short Gets the next identifiable token out of the 74*cdf0e10cSrcweir source code. 75*cdf0e10cSrcweir */ 76*cdf0e10cSrcweir void GetNextToken(); 77*cdf0e10cSrcweir 78*cdf0e10cSrcweir /// @return true, if there are more tokens to parse. 79*cdf0e10cSrcweir bool HasMore() const { return bHasMore; } 80*cdf0e10cSrcweir 81*cdf0e10cSrcweir private: 82*cdf0e10cSrcweir void InitSource( 83*cdf0e10cSrcweir CharacterSource & 84*cdf0e10cSrcweir i_rSource ); 85*cdf0e10cSrcweir 86*cdf0e10cSrcweir virtual void SetStartContext() = 0; 87*cdf0e10cSrcweir virtual void SetCurrentContext( 88*cdf0e10cSrcweir TkpContext & io_rContext ) = 0; 89*cdf0e10cSrcweir virtual TkpContext & 90*cdf0e10cSrcweir CurrentContext() = 0; 91*cdf0e10cSrcweir // DATA 92*cdf0e10cSrcweir CharacterSource * pChars; 93*cdf0e10cSrcweir bool bHasMore; 94*cdf0e10cSrcweir }; 95*cdf0e10cSrcweir 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir #endif 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir 100