parser.h

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// -*- mode: c++; c-basic-offset:4 -*-
 
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
 
// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
 
// (c) COPYRIGHT URI/MIT 1994-1999
// Please read the full copyright statement in the file COPYRIGHT_URI.
//
// Authors:
//      jhrg,jimg       James Gallagher <jgallagher@gso.uri.edu>
 
// Constants, types and function prototypes for use with the DAP parsers.
//
// jhrg 2/3/96
 
#ifndef _parser_h
#define _parser_h
 
#ifndef _error_h
#include "Error.h"
#endif
 
#define YYDEBUG 1
#undef YYERROR_VERBOSE
#define YY_NO_UNPUT 1
 
#define ID_MAX 256
 
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
 
namespace libdap {

 
struct parser_arg {
    void *_object; // nominally a pointer to an object
    Error *_error; // a pointer to an Error object
    int _status;   // parser status
 
    parser_arg() : _object(0), _error(0), _status(1) {}
    parser_arg(void *obj) : _object(obj), _error(0), _status(1) {}
    virtual ~parser_arg() {
        if (_error) {
            delete _error;
            _error = 0;
        }
    }
 
    void *object() { return _object; }
    void set_object(void *obj) { _object = obj; }
    Error *error() { return _error; }
    void set_error(Error *obj) { _error = obj; }
    int status() { return _status; }
    void set_status(int val = 0) { _status = val; }
};

void parse_error(parser_arg *arg, const char *s, const int line_num = 0, const char *context = 0);
void parse_error(const string &msg, const int line_num, const char *context = 0);
 
} // namespace libdap
 
#include "parser-util.h"
 
#endif // _parser_h