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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Parser control
#ifndef _SDP_PARSE_CTRL_H
#define _SDP_PARSE_CTRL_H
#include "sdp.h"
#include "threads/mutex.h"
#define SDP t_sdp_parser::sdp
#define CTX_INITIAL (t_sdp_parser::context = t_sdp_parser::X_INITIAL)
#define CTX_SAFE (t_sdp_parser::context = t_sdp_parser::X_SAFE)
#define CTX_NUM (t_sdp_parser::context = t_sdp_parser::X_NUM)
#define CTX_LINE (t_sdp_parser::context = t_sdp_parser::X_LINE)
// The t_sdp_parser controls the direction of the scanner/parser
// process and it stores the results from the parser.
class t_sdp_parser {
private:
/** Mutex to synchronize parse operations */
static t_mutex mtx_parser;
public:
enum t_context {
X_INITIAL, // Initial context
X_SAFE, // Safe context
X_NUM, // Number context
X_LINE, // Whole line context
};
static t_context context; // Scan context
static t_sdp *sdp; // SDP that has been parsed
// Parse string s. Throw int exception when parsing fails.
static t_sdp *parse(const string &s);
};
// Error that can be thrown as exception
class t_sdp_syntax_error {
public:
string error;
t_sdp_syntax_error(const string &e);
};
#endif
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