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/* This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
#include "hb.h"
#include "hb_dict.h"
hb_dict_t * hb_dict_init( int alloc )
{
hb_dict_t * dict = NULL;
dict = malloc( sizeof( hb_dict_t ) );
if( !dict )
{
hb_log( "ERROR: could not allocate hb_dict_t" );
return NULL;
}
dict->count = 0;
dict->objects = malloc( alloc * sizeof( hb_dict_entry_t ) );
if( !dict->objects )
{
hb_log( "ERROR: could not allocate hb_dict_t objects" );
dict->alloc = 0;
}
else
{
dict->alloc = alloc;
}
return dict;
}
void hb_dict_free( hb_dict_t ** dict_ptr )
{
hb_dict_t * dict = *dict_ptr;
if( dict )
{
if( dict->objects )
{
int i;
for( i = 0; i < dict->count; i++ )
{
if( dict->objects[i].key )
{
free( dict->objects[i].key );
}
if( dict->objects[i].value )
{
free( dict->objects[i].value );
}
}
free( dict->objects );
}
free( *dict_ptr );
*dict_ptr = NULL;
}
}
void hb_dict_set( hb_dict_t ** dict_ptr, const char * key, const char * value )
{
hb_dict_t * dict = *dict_ptr;
if( !dict )
{
hb_log( "hb_dict_set: NULL dictionary" );
return;
}
if( !key || !strlen( key ) )
return;
hb_dict_entry_t * entry = hb_dict_get( dict, key );
if( entry )
{
if( entry->value )
{
if( value && !strcmp( value, entry->value ) )
return;
else
{
free( entry->value );
entry->value = NULL;
}
}
if( value && strlen( value ) )
entry->value = strdup( value );
}
else
{
if( dict->alloc <= dict->count )
{
hb_dict_entry_t * tmp = NULL;
tmp = malloc( ( 2 * dict->alloc ) * sizeof( hb_dict_entry_t ) );
if( !tmp )
{
hb_log( "ERROR: could not realloc hb_dict_t objects" );
return;
}
if( dict->objects )
{
if( dict->count )
memcpy( tmp, dict->objects, dict->count * sizeof( hb_dict_entry_t ) );
free( dict->objects );
}
dict->objects = tmp;
dict->alloc *= 2;
}
dict->objects[dict->count].key = strdup( key );
if( value && strlen( value ) )
dict->objects[dict->count].value = strdup( value );
else
dict->objects[dict->count].value = NULL;
dict->count++;
}
}
hb_dict_entry_t * hb_dict_get( hb_dict_t * dict, const char * key )
{
if( !dict || !dict->objects || !key || !strlen( key ) )
return NULL;
int i;
for( i = 0; i < dict->count; i++ )
if( !strcmp( key, dict->objects[i].key ) )
return &dict->objects[i];
return NULL;
}
hb_dict_entry_t * hb_dict_next( hb_dict_t * dict, hb_dict_entry_t * previous )
{
if( !dict || !dict->objects )
return NULL;
if( !previous )
return &dict->objects[0];
unsigned int prev_index = previous - dict->objects;
if( prev_index + 1 < dict->count )
return &dict->objects[prev_index+1];
return NULL;
}
hb_dict_t * hb_encopts_to_dict( const char * encopts )
{
hb_dict_t * dict = NULL;
if( encopts && *encopts )
{
char *cur_opt, *opts_start, *name, *value;
dict = hb_dict_init( 10 );
if( !dict )
return NULL;
cur_opt = opts_start = strdup( encopts );
if( opts_start )
{
while( *cur_opt )
{
name = cur_opt;
cur_opt += strcspn( cur_opt, ":" );
if( *cur_opt )
{
*cur_opt = 0;
cur_opt++;
}
value = strchr( name, '=' );
if( value )
{
*value = 0;
value++;
}
hb_dict_set( &dict, name, value );
}
}
free( opts_start );
}
return dict;
}
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