330 lines
7.2 KiB
C
330 lines
7.2 KiB
C
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/* #line 1 "tsdp_parser_header_S.rl" */
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/*
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* Copyright (C) 2009 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou@yahoo.fr>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tsdp_header_S.c
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* @brief SDP "s=" header (Session Name).
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*
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* @author Mamadou Diop <diopmamadou(at)yahoo.fr>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tinySDP/headers/tsdp_header_S.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#include "tsk_string.h"
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#include <string.h>
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/***********************************
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* Ragel state machine.
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*/
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/* #line 60 "tsdp_parser_header_S.rl" */
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int tsdp_header_S_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
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{
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if(header)
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{
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const tsdp_header_S_t *S = (const tsdp_header_S_t *)header;
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if(S->value){
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tsk_buffer_append(output, S->value, strlen(S->value));
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}
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return 0;
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}
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return -1;
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}
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tsdp_header_t* tsdp_header_S_clone(const tsdp_header_t* header)
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{
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if(header){
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const tsdp_header_S_t *S = (const tsdp_header_S_t *)header;
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return TSDP_HEADER_S_CREATE(S->value);
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}
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return tsk_null;
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}
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tsdp_header_S_t *tsdp_header_S_parse(const char *data, size_t size)
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{
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int cs = 0;
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const char *p = data;
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const char *pe = p + size;
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const char *eof = pe;
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tsdp_header_S_t *hdr_S = TSDP_HEADER_S_CREATE_NULL();
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const char *tag_start;
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/* #line 82 "../src/headers/tsdp_header_S.c" */
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static const char _tsdp_machine_parser_header_S_actions[] = {
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0, 1, 0, 1, 1, 2, 0, 1
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};
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static const char _tsdp_machine_parser_header_S_key_offsets[] = {
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0, 0, 1, 3, 4, 6, 7
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};
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static const char _tsdp_machine_parser_header_S_trans_keys[] = {
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115, 32, 61, 10, 13, 32, 13, 0
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};
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static const char _tsdp_machine_parser_header_S_single_lengths[] = {
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0, 1, 2, 1, 2, 1, 0
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};
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static const char _tsdp_machine_parser_header_S_range_lengths[] = {
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0, 0, 0, 0, 0, 0, 0
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};
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static const char _tsdp_machine_parser_header_S_index_offsets[] = {
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0, 0, 2, 5, 7, 10, 12
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};
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static const char _tsdp_machine_parser_header_S_trans_targs[] = {
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2, 0, 2, 4, 0, 6, 0, 3,
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4, 5, 3, 5, 0, 0
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};
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static const char _tsdp_machine_parser_header_S_trans_actions[] = {
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0, 0, 0, 0, 0, 0, 0, 5,
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0, 1, 3, 0, 0, 0
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};
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static const char _tsdp_machine_parser_header_S_eof_actions[] = {
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0, 0, 0, 0, 5, 3, 0
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};
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static const int tsdp_machine_parser_header_S_start = 1;
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static const int tsdp_machine_parser_header_S_first_final = 4;
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static const int tsdp_machine_parser_header_S_error = 0;
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static const int tsdp_machine_parser_header_S_en_main = 1;
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/* #line 96 "tsdp_parser_header_S.rl" */
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/* #line 131 "../src/headers/tsdp_header_S.c" */
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{
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cs = tsdp_machine_parser_header_S_start;
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}
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/* #line 97 "tsdp_parser_header_S.rl" */
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/* #line 138 "../src/headers/tsdp_header_S.c" */
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{
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int _klen;
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unsigned int _trans;
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const char *_acts;
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unsigned int _nacts;
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const char *_keys;
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if ( p == pe )
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goto _test_eof;
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if ( cs == 0 )
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goto _out;
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_resume:
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_keys = _tsdp_machine_parser_header_S_trans_keys + _tsdp_machine_parser_header_S_key_offsets[cs];
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_trans = _tsdp_machine_parser_header_S_index_offsets[cs];
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_klen = _tsdp_machine_parser_header_S_single_lengths[cs];
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if ( _klen > 0 ) {
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const char *_lower = _keys;
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const char *_mid;
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const char *_upper = _keys + _klen - 1;
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while (1) {
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if ( _upper < _lower )
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break;
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_mid = _lower + ((_upper-_lower) >> 1);
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if ( (*p) < *_mid )
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_upper = _mid - 1;
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else if ( (*p) > *_mid )
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_lower = _mid + 1;
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else {
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_trans += (_mid - _keys);
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goto _match;
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}
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}
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_keys += _klen;
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_trans += _klen;
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}
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_klen = _tsdp_machine_parser_header_S_range_lengths[cs];
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if ( _klen > 0 ) {
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const char *_lower = _keys;
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const char *_mid;
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const char *_upper = _keys + (_klen<<1) - 2;
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while (1) {
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if ( _upper < _lower )
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break;
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_mid = _lower + (((_upper-_lower) >> 1) & ~1);
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if ( (*p) < _mid[0] )
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_upper = _mid - 2;
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else if ( (*p) > _mid[1] )
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_lower = _mid + 2;
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else {
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_trans += ((_mid - _keys)>>1);
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goto _match;
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}
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}
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_trans += _klen;
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}
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_match:
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cs = _tsdp_machine_parser_header_S_trans_targs[_trans];
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if ( _tsdp_machine_parser_header_S_trans_actions[_trans] == 0 )
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goto _again;
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_acts = _tsdp_machine_parser_header_S_actions + _tsdp_machine_parser_header_S_trans_actions[_trans];
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_nacts = (unsigned int) *_acts++;
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while ( _nacts-- > 0 )
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{
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switch ( *_acts++ )
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{
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case 0:
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/* #line 47 "tsdp_parser_header_S.rl" */
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{
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tag_start = p;
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}
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break;
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case 1:
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/* #line 51 "tsdp_parser_header_S.rl" */
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{
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TSK_PARSER_SET_STRING(hdr_S->value);
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}
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break;
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/* #line 223 "../src/headers/tsdp_header_S.c" */
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}
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}
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_again:
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if ( cs == 0 )
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goto _out;
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if ( ++p != pe )
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goto _resume;
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_test_eof: {}
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if ( p == eof )
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{
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const char *__acts = _tsdp_machine_parser_header_S_actions + _tsdp_machine_parser_header_S_eof_actions[cs];
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unsigned int __nacts = (unsigned int) *__acts++;
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while ( __nacts-- > 0 ) {
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switch ( *__acts++ ) {
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case 0:
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/* #line 47 "tsdp_parser_header_S.rl" */
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{
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tag_start = p;
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}
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break;
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case 1:
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/* #line 51 "tsdp_parser_header_S.rl" */
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{
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TSK_PARSER_SET_STRING(hdr_S->value);
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}
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break;
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/* #line 251 "../src/headers/tsdp_header_S.c" */
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}
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}
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}
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_out: {}
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}
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/* #line 98 "tsdp_parser_header_S.rl" */
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if( cs <
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/* #line 262 "../src/headers/tsdp_header_S.c" */
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4
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/* #line 99 "tsdp_parser_header_S.rl" */
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){
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TSK_OBJECT_SAFE_FREE(hdr_S);
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}
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return hdr_S;
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}
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//========================================================
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// S header object definition
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//
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static void* tsdp_header_S_create(void *self, va_list * app)
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{
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tsdp_header_S_t *S = self;
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if(S)
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{
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TSDP_HEADER(S)->type = tsdp_htype_S;
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TSDP_HEADER(S)->tostring = tsdp_header_S_tostring;
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TSDP_HEADER(S)->clone = tsdp_header_S_clone;
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TSDP_HEADER(S)->rank = TSDP_HTYPE_S_RANK;
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S->value = tsk_strdup(va_arg(*app, const char*));
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new S header.");
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}
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return self;
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}
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static void* tsdp_header_S_destroy(void *self)
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{
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tsdp_header_S_t *S = self;
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if(S){
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TSK_FREE(S->value);
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}
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else{
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TSK_DEBUG_ERROR("Null S header.");
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}
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return self;
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}
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static int tsdp_header_S_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
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{
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if(obj1 && obj2){
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return tsdp_header_rank_cmp(obj1, obj2);
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}
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else{
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return -1;
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}
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}
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static const tsk_object_def_t tsdp_header_S_def_s =
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{
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sizeof(tsdp_header_S_t),
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tsdp_header_S_create,
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tsdp_header_S_destroy,
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tsdp_header_S_cmp
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};
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const tsk_object_def_t *tsdp_header_S_def_t = &tsdp_header_S_def_s;
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