src/network/lscpparser.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *                                                                         *
 *   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                                                   *
 ***************************************************************************/

#ifndef __LSCPPARSER_H__
#define __LSCPPARSER_H__

#include <sys/types.h>
#include <sys/socket.h>

#include <stdlib.h>
#include <iostream>
#include <sstream>
#include <string>

#include "../common/global.h"
#include "lscpevent.h"
#include "../Sampler.h"

/// Will be returned by the parser in case of syntax errors.
#define LSCP_SYNTAX_ERROR       -69
#define LSCP_QUIT               -1
#define LSCP_DONE               0

using namespace LinuxSampler;

// just symbol prototyping
class LSCPServer;

/**
 * How the fill states of disk stream buffers should be reflected.
 */
enum fill_response_t {
    fill_response_bytes,      ///< The returned values are meant in bytes.
    fill_response_percentage  ///< The returned values are meant in percentage.
};

/**
 * Semantic value of the lookahead symbol.
 *
 * Structure that is used by the parser to process and return values from the
 * input text. The lexical analyzer for example returns a number for
 * recognized number strings in the input text and the parser might return a
 * value for each of it's rules.
 */
struct YYSTYPE {
    union {
        char            Char;
        unsigned int    Number;
        double          Dotnum;
        fill_response_t FillResponse;
        LSCPEvent::event_t Event;
    };
    std::string                       String;
    std::map<std::string,std::string> KeyValList;
};
#define yystype YYSTYPE         ///< For backward compatibility.
#define YYSTYPE_IS_DECLARED     ///< We tell the lexer / parser that we use our own data structure as defined above.

// pointer to an (reentrant) scanner / lexical analyzer
typedef void* yyscan_t;

/**
 * Parameters given to the parser on every yyparse() call.
 */
struct yyparse_param_t {
    LSCPServer* pServer;
    int         hSession;
    yyscan_t    pScanner;
    bool        bVerbose; ///< if true then all commands will immediately sent back (echo)

    yyparse_param_t() {
        pServer  = NULL;
        hSession = -1;
        pScanner = NULL;
        bVerbose = false;
    }
};
#define YYPARSE_PARAM yyparse_param

/**
 * Prototype of the main scanner function (lexical analyzer).
 */
#define YY_DECL int yylex(YYSTYPE* yylval, yyscan_t yyscanner)

/**
 * Override lex's input function which just reads from stdin by default.
 * We read from a socket instead.
 */
extern int GetLSCPCommand( void *buf, int max_size);
#define YY_INPUT(buf,result,max_size) \
        result = GetLSCPCommand(buf, max_size)

#endif // __LSCPPARSER_H__
1	schoenebeck	35	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	56	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	35	* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#ifndef __LSCPPARSER_H__
24			#define __LSCPPARSER_H__
25
26			#include <sys/types.h>
27			#include <sys/socket.h>
28
29			#include <stdlib.h>
30			#include <iostream>
31			#include <sstream>
32			#include <string>
33
34	schoenebeck	53	#include "../common/global.h"
35	senkov	170	#include "lscpevent.h"
36	schoenebeck	53	#include "../Sampler.h"
37	schoenebeck	35
38			/// Will be returned by the parser in case of syntax errors.
39			#define LSCP_SYNTAX_ERROR -69
40	senkov	170	#define LSCP_QUIT -1
41			#define LSCP_DONE 0
42	schoenebeck	35
43	schoenebeck	53	using namespace LinuxSampler;
44
45	senkov	170	// just symbol prototyping
46			class LSCPServer;
47
48	schoenebeck	35	/**
49			* How the fill states of disk stream buffers should be reflected.
50			*/
51			enum fill_response_t {
52			fill_response_bytes, ///< The returned values are meant in bytes.
53			fill_response_percentage ///< The returned values are meant in percentage.
54			};
55
56			/**
57			* Semantic value of the lookahead symbol.
58			*
59			* Structure that is used by the parser to process and return values from the
60			* input text. The lexical analyzer for example returns a number for
61			* recognized number strings in the input text and the parser might return a
62			* value for each of it's rules.
63			*/
64			struct YYSTYPE {
65			union {
66	schoenebeck	123	char Char;
67			unsigned int Number;
68			double Dotnum;
69			fill_response_t FillResponse;
70	senkov	170	LSCPEvent::event_t Event;
71	schoenebeck	35	};
72	schoenebeck	123	std::string String;
73			std::map<std::string,std::string> KeyValList;
74	schoenebeck	35	};
75			#define yystype YYSTYPE ///< For backward compatibility.
76			#define YYSTYPE_IS_DECLARED ///< We tell the lexer / parser that we use our own data structure as defined above.
77
78			// pointer to an (reentrant) scanner / lexical analyzer
79			typedef void* yyscan_t;
80
81			/**
82			* Parameters given to the parser on every yyparse() call.
83			*/
84			struct yyparse_param_t {
85			LSCPServer* pServer;
86	schoenebeck	210	int hSession;
87	schoenebeck	35	yyscan_t pScanner;
88	schoenebeck	210	bool bVerbose; ///< if true then all commands will immediately sent back (echo)
89
90			yyparse_param_t() {
91			pServer = NULL;
92			hSession = -1;
93			pScanner = NULL;
94			bVerbose = false;
95			}
96	schoenebeck	35	};
97			#define YYPARSE_PARAM yyparse_param
98
99			/**
100			* Prototype of the main scanner function (lexical analyzer).
101			*/
102			#define YY_DECL int yylex(YYSTYPE* yylval, yyscan_t yyscanner)
103
104			/**
105			* Override lex's input function which just reads from stdin by default.
106			* We read from a socket instead.
107			*/
108	senkov	170	extern int GetLSCPCommand( void *buf, int max_size);
109	schoenebeck	35	#define YY_INPUT(buf,result,max_size) \
110	schoenebeck	210	result = GetLSCPCommand(buf, max_size)
111	schoenebeck	35
112			#endif // __LSCPPARSER_H__