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Diffstat (limited to 'engines/gob/parse.h')
-rw-r--r-- | engines/gob/parse.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/engines/gob/parse.h b/engines/gob/parse.h new file mode 100644 index 0000000000..e85fbebcfa --- /dev/null +++ b/engines/gob/parse.h @@ -0,0 +1,75 @@ +/* ScummVM - Scumm Interpreter + * Copyright (C) 2004 Ivan Dubrov + * Copyright (C) 2004-2006 The ScummVM project + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ +#ifndef GOB_PARSE_H +#define GOB_PARSE_H + +namespace Gob { + +class Parse { +public: + void skipExpr(char stopToken); + void printExpr(char stopToken); + void printVarIndex(void); + virtual int16 parseVarIndex(void) = 0; + virtual int16 parseValExpr(unsigned stopToken=99) = 0; + virtual int16 parseExpr(char stopToken, byte *resultPtr) = 0; + + Parse(GobEngine *vm); + virtual ~Parse() {}; + +protected: + enum PointerType { + kExecPtr = 0, + kInterVar = 1, + kResStr = 2 + }; + + GobEngine *_vm; + + int32 encodePtr(char *ptr, int type); + char *decodePtr(int32 n); +}; + +class Parse_v1 : public Parse { +public: + Parse_v1(GobEngine *vm); + virtual ~Parse_v1() {}; + + virtual int16 parseVarIndex(void); + virtual int16 parseValExpr(unsigned stopToken=99); + virtual int16 parseExpr(char stopToken, byte *resultPtr); +}; + +class Parse_v2 : public Parse_v1 { +public: + Parse_v2(GobEngine *vm); + virtual ~Parse_v2() {}; + + virtual int16 parseVarIndex(void); + virtual int16 parseValExpr(unsigned stopToken=99); + virtual int16 parseExpr(char stopToken, byte *resultPtr); +}; + +} // End of namespace Gob + +#endif |