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/*
* ESG parser
*
* Copyright (C) 2006 Stephane Este-Gracias (sestegra@free.fr)
*
* 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
*/
#include <stdlib.h>
#include <string.h>
#include <libesg/types.h>
#include <libesg/representation/textual_decoder_init.h>
struct esg_textual_decoder_init *esg_textual_decoder_init_decode(uint8_t *buffer, uint32_t size) {
uint32_t pos;
struct esg_textual_decoder_init *decoder_init;
struct esg_namespace_prefix *namespace_prefix;
struct esg_namespace_prefix *last_namespace_prefix;
struct esg_xml_fragment_type *xml_fragment_type;
struct esg_xml_fragment_type *last_xml_fragment_type;
uint32_t decoder_init_length;
uint8_t num_index;
if ((buffer == NULL) || (size <= 1)) {
return NULL;
}
pos = 0;
decoder_init = (struct esg_textual_decoder_init *) malloc(sizeof(struct esg_textual_decoder_init));
memset(decoder_init, 0, sizeof(struct esg_textual_decoder_init));
decoder_init->namespace_prefix_list = NULL;
decoder_init->xml_fragment_type_list = NULL;
decoder_init->version = buffer[pos];
pos += 1;
pos += vluimsbf8(buffer+pos, size-pos, &decoder_init_length);
if (size < pos + decoder_init_length) {
esg_textual_decoder_init_free(decoder_init);
return NULL;
}
decoder_init->num_namespace_prefixes = buffer[pos];
pos += 1;
last_namespace_prefix = NULL;
for (num_index = 0; num_index < decoder_init->num_namespace_prefixes; num_index++) {
namespace_prefix = (struct esg_namespace_prefix *) malloc(sizeof(struct esg_namespace_prefix));
memset(namespace_prefix, 0, sizeof(struct esg_namespace_prefix));
namespace_prefix->_next = NULL;
if (last_namespace_prefix == NULL) {
decoder_init->namespace_prefix_list = namespace_prefix;
} else {
last_namespace_prefix->_next = namespace_prefix;
}
last_namespace_prefix = namespace_prefix;
namespace_prefix->prefix_string_ptr = (buffer[pos] << 8) | buffer[pos+1];
pos += 2;
namespace_prefix->namespace_uri_ptr = (buffer[pos] << 8) | buffer[pos+1];
pos += 2;
}
decoder_init->num_fragment_types = buffer[pos];
pos += 1;
last_xml_fragment_type = NULL;
for (num_index = 0; num_index < decoder_init->num_fragment_types; num_index++) {
xml_fragment_type = (struct esg_xml_fragment_type *) malloc(sizeof(struct esg_xml_fragment_type));
memset(xml_fragment_type, 0, sizeof(struct esg_xml_fragment_type));
xml_fragment_type->_next = NULL;
if (last_xml_fragment_type == NULL) {
decoder_init->xml_fragment_type_list = xml_fragment_type;
} else {
last_xml_fragment_type->_next = xml_fragment_type;
}
last_xml_fragment_type = xml_fragment_type;
xml_fragment_type->xpath_ptr = (buffer[pos] << 8) | buffer[pos+1];
pos += 2;
xml_fragment_type->xml_fragment_type = (buffer[pos] << 8) | buffer[pos+1];
pos += 2;
}
return decoder_init;
}
void esg_textual_decoder_init_free(struct esg_textual_decoder_init *decoder_init) {
struct esg_namespace_prefix *namespace_prefix;
struct esg_namespace_prefix *next_namespace_prefix;
struct esg_xml_fragment_type *xml_fragment_type;
struct esg_xml_fragment_type *next_xml_fragment_type;
if (decoder_init == NULL) {
return;
}
for(namespace_prefix = decoder_init->namespace_prefix_list; namespace_prefix; namespace_prefix = next_namespace_prefix) {
next_namespace_prefix = namespace_prefix->_next;
free(namespace_prefix);
}
for(xml_fragment_type = decoder_init->xml_fragment_type_list; xml_fragment_type; xml_fragment_type = next_xml_fragment_type) {
next_xml_fragment_type = xml_fragment_type->_next;
free(xml_fragment_type);
}
free(decoder_init);
}
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