base_parser.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This file is based on WME Lite.
 * http://dead-code.org/redir.php?target=wmelite
 * Copyright (c) 2011 Jan Nedoma
 */

#ifndef WINTERMUTE_BASE_PARSER_H
#define WINTERMUTE_BASE_PARSER_H


#define TOKEN_DEF_START         \
    enum                  \
    {                 \
        TOKEN_NONE = 0,
#define TOKEN_DEF(name)         \
    TOKEN_ ## name,
#define TOKEN_DEF_END           \
    TOKEN_TOTAL_COUNT           \
    };
#define TOKEN_TABLE_START(name)     \
    static const BaseParser::TokenDesc name [] =      \
            {
#define TOKEN_TABLE(name)       \
    { TOKEN_ ## name, #name },
#define TOKEN_TABLE_END         \
    { 0, 0 }                \
    };

#define PARSERR_GENERIC         -3
#define PARSERR_EOF             -2
#define PARSERR_TOKENNOTFOUND   -1

#include "engines/wintermute/coll_templ.h"

namespace Wintermute {

class BaseParser {
public:
    struct TokenDesc {
        int32 id;
        const char *token;
    };

public:
    int32 scanStr(const char *in, const char *format, ...);
    int32 getCommand(char **buf, const TokenDesc *tokens, char **params);
    BaseParser();
    virtual ~BaseParser();
private:
    char *getLastOffender();
    void skipToken(char **buf, char *tok, char *msg = nullptr);
    int32 getTokenInt(char **buf);
    float getTokenFloat(char **buf);
    Common::String getToken(char **buf);
    char *getAssignmentText(char **buf);
    char *getSubText(char **buf, char open, char close);
    void skipCharacters(char **buf, const char *toSkip);
    int32 getObject(char **buf, const TokenDesc *tokens, char **name, char **data);
    int32 _parserLine = 0;
    char _lastOffender[255];
    char *_whiteSpace;
};

} // End of namespace Wintermute

#endif