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_TKPCHARS_HXX 29*cdf0e10cSrcweir #define ADC_TKPCHARS_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir // USED SERVICES 32*cdf0e10cSrcweir // BASE CLASSES 33*cdf0e10cSrcweir // COMPONENTS 34*cdf0e10cSrcweir // PARAMETRS 35*cdf0e10cSrcweir #include <adc_cl.hxx> 36*cdf0e10cSrcweir #include <stack> 37*cdf0e10cSrcweir 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir 40*cdf0e10cSrcweir /** @descr 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir dpSource: 43*cdf0e10cSrcweir 44*cdf0e10cSrcweir 1||||||||||||||||||||||a||||||||||||b|||c||||||||||||||||||||... 45*cdf0e10cSrcweir 46*cdf0e10cSrcweir 47*cdf0e10cSrcweir 1 := first character of Sourcecode. 48*cdf0e10cSrcweir a := nLastTokenStart, there starts the last cut token. 49*cdf0e10cSrcweir b := nLastCut, there is a '\0'-char which marks the end of 50*cdf0e10cSrcweir the last cut token. The original character at b is stored 51*cdf0e10cSrcweir in cCharAtLastCut and will replace the '\0'-char, when the 52*cdf0e10cSrcweir next token is cut. 53*cdf0e10cSrcweir c := The current cursor position. 54*cdf0e10cSrcweir 55*cdf0e10cSrcweir 56*cdf0e10cSrcweir @needs cosv.lib 57*cdf0e10cSrcweir 58*cdf0e10cSrcweir @use This class can be used by any parser to get the chars of a 59*cdf0e10cSrcweir text one by one and separate them to tokens. 60*cdf0e10cSrcweir **/ 61*cdf0e10cSrcweir 62*cdf0e10cSrcweir class CharacterSource 63*cdf0e10cSrcweir { 64*cdf0e10cSrcweir public: 65*cdf0e10cSrcweir // LIFECYCLE 66*cdf0e10cSrcweir CharacterSource(); 67*cdf0e10cSrcweir ~CharacterSource(); 68*cdf0e10cSrcweir 69*cdf0e10cSrcweir // OPERATIONS 70*cdf0e10cSrcweir /** Loads the complete contents of in_rSource into the classes private memory. 71*cdf0e10cSrcweir If in_rSource is a file, it has to be open of course. 72*cdf0e10cSrcweir After loading the text, the CurChar() is set on the begin of the text. 73*cdf0e10cSrcweir **/ 74*cdf0e10cSrcweir void LoadText( 75*cdf0e10cSrcweir csv::bstream & io_rSource); 76*cdf0e10cSrcweir 77*cdf0e10cSrcweir void InsertTextAtCurPos( 78*cdf0e10cSrcweir const char * i_sText2Insert ); 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir /// @return CurChar() after moving forward one char. 81*cdf0e10cSrcweir char MoveOn(); 82*cdf0e10cSrcweir /** @return 83*cdf0e10cSrcweir The token which starts at the char which was CurChar(), when 84*cdf0e10cSrcweir CutToken() was called the last time - or at the beginning of the text. 85*cdf0e10cSrcweir The token ends by the CurChar() being replaced by a '\0'. 86*cdf0e10cSrcweir 87*cdf0e10cSrcweir Value is valid until the next call of CutToken() or ~CharacterSource(). 88*cdf0e10cSrcweir **/ 89*cdf0e10cSrcweir const char * CutToken(); 90*cdf0e10cSrcweir 91*cdf0e10cSrcweir // INQUIRY 92*cdf0e10cSrcweir char CurChar() const; 93*cdf0e10cSrcweir /// @return The result of the last CutToken(). Or NULL, if there was none yet. 94*cdf0e10cSrcweir const char * CurToken() const; 95*cdf0e10cSrcweir 96*cdf0e10cSrcweir // INQUIRY 97*cdf0e10cSrcweir /// @return true, if 98*cdf0e10cSrcweir bool IsFinished() const; 99*cdf0e10cSrcweir 100*cdf0e10cSrcweir private: 101*cdf0e10cSrcweir struct S_SourceState 102*cdf0e10cSrcweir { 103*cdf0e10cSrcweir DYN char * dpSource; 104*cdf0e10cSrcweir intt nSourceSize; 105*cdf0e10cSrcweir 106*cdf0e10cSrcweir intt nCurPos; 107*cdf0e10cSrcweir intt nLastCut; 108*cdf0e10cSrcweir intt nLastTokenStart; 109*cdf0e10cSrcweir char cCharAtLastCut; 110*cdf0e10cSrcweir 111*cdf0e10cSrcweir S_SourceState( 112*cdf0e10cSrcweir DYN char * dpSource, 113*cdf0e10cSrcweir intt nSourceSize, 114*cdf0e10cSrcweir intt nCurPos, 115*cdf0e10cSrcweir intt nLastCut, 116*cdf0e10cSrcweir intt nLastTokenStart, 117*cdf0e10cSrcweir char cCharAtLastCut ); 118*cdf0e10cSrcweir }; 119*cdf0e10cSrcweir 120*cdf0e10cSrcweir void BeginSource(); 121*cdf0e10cSrcweir intt CurPos() const; 122*cdf0e10cSrcweir char MoveOn_OverStack(); 123*cdf0e10cSrcweir 124*cdf0e10cSrcweir // DATA 125*cdf0e10cSrcweir std::stack< S_SourceState > 126*cdf0e10cSrcweir aSourcesStack; 127*cdf0e10cSrcweir 128*cdf0e10cSrcweir DYN char * dpSource; 129*cdf0e10cSrcweir intt nSourceSize; 130*cdf0e10cSrcweir 131*cdf0e10cSrcweir intt nCurPos; 132*cdf0e10cSrcweir intt nLastCut; 133*cdf0e10cSrcweir intt nLastTokenStart; 134*cdf0e10cSrcweir char cCharAtLastCut; 135*cdf0e10cSrcweir }; 136*cdf0e10cSrcweir 137*cdf0e10cSrcweir 138*cdf0e10cSrcweir inline char 139*cdf0e10cSrcweir CharacterSource::MoveOn() 140*cdf0e10cSrcweir { 141*cdf0e10cSrcweir if (DEBUG_ShowText()) 142*cdf0e10cSrcweir { 143*cdf0e10cSrcweir Cerr() << char(dpSource[nCurPos+1]) << Flush(); 144*cdf0e10cSrcweir } 145*cdf0e10cSrcweir if ( nCurPos < nSourceSize-1 ) 146*cdf0e10cSrcweir return dpSource[++nCurPos]; 147*cdf0e10cSrcweir else if ( aSourcesStack.size() > 0 ) 148*cdf0e10cSrcweir return MoveOn_OverStack(); 149*cdf0e10cSrcweir else 150*cdf0e10cSrcweir return dpSource[nCurPos = nSourceSize]; 151*cdf0e10cSrcweir } 152*cdf0e10cSrcweir inline char 153*cdf0e10cSrcweir CharacterSource::CurChar() const 154*cdf0e10cSrcweir { return nCurPos != nLastCut ? dpSource[nCurPos] : cCharAtLastCut; } 155*cdf0e10cSrcweir inline const char * 156*cdf0e10cSrcweir CharacterSource::CurToken() const 157*cdf0e10cSrcweir { return &dpSource[nLastTokenStart]; } 158*cdf0e10cSrcweir inline bool 159*cdf0e10cSrcweir CharacterSource::IsFinished() const 160*cdf0e10cSrcweir { return nCurPos >= nSourceSize; } 161*cdf0e10cSrcweir inline intt 162*cdf0e10cSrcweir CharacterSource::CurPos() const 163*cdf0e10cSrcweir { return nCurPos; } 164*cdf0e10cSrcweir 165*cdf0e10cSrcweir 166*cdf0e10cSrcweir 167*cdf0e10cSrcweir 168*cdf0e10cSrcweir #endif 169*cdf0e10cSrcweir 170*cdf0e10cSrcweir 171