/**
* raptor_new_uri_from_id:
* @base_uri: existing base URI
* @id: RDF ID
*
* Constructor - create a new URI from a base URI and RDF ID.
*
* This creates a URI equivalent to concatenating @base_uri with
* ## and @id.
*
* Return value: a new #raptor_uri object or NULL on failure.
**/
raptor_uri*
raptor_new_uri_from_id(raptor_uri *base_uri, const unsigned char *id)
{
raptor_uri *new_uri;
unsigned char *local_name;
int len;
if(!base_uri || !id)
return NULL;
#if defined(RAPTOR_DEBUG) && RAPTOR_DEBUG > 1
RAPTOR_DEBUG2("Using ID %s\n", id);
#endif
/* "#id\0" */
len=1+strlen((char*)id) + sizeof(char*);
local_name=(unsigned char*)RAPTOR_MALLOC(cstring, len);
if(!local_name)
return NULL;
*local_name='#';
strcpy((char*)local_name+1, (char*)id);
new_uri=raptor_new_uri_relative_to_base(base_uri, local_name);
RAPTOR_FREE(cstring, local_name);
return new_uri;
}
/**
* librdf_new_uri_relative_to_base:
* @base_uri: absolute base URI
* @uri_string: relative URI string
*
* Constructor - create a new #librdf_uri object from a URI string relative to a base URI.
*
* An empty uri_string or NULL is equivalent to
* librdf_new_uri_from_uri(base_uri)
*
* Return value: a new #librdf_uri object or NULL on failure
**/
librdf_uri*
librdf_new_uri_relative_to_base(librdf_uri* base_uri,
const unsigned char *uri_string)
{
return raptor_new_uri_relative_to_base(raptor_uri_get_world(base_uri),
base_uri,
uri_string);
}
void
raptor_rss_model_init(raptor_world* world, raptor_rss_model* rss_model)
{
memset(rss_model->common, 0,
sizeof(raptor_rss_item*) * RAPTOR_RSS_COMMON_SIZE);
rss_model->world = world;
rss_model->last = rss_model->items = NULL;
rss_model->items_count = 0;
RAPTOR_RSS_RSS_items_URI(rss_model) = raptor_new_uri_relative_to_base(world, world->rss_namespaces_info_uris[RSS1_0_NS], (const unsigned char*)"items");
}
static raptor_uri*
raptor_default_new_uri(void *context, const unsigned char *uri_string)
{
unsigned char *p;
size_t len;
/* If uri_string is "file:path-to-file", turn it into a correct file:URI */
if(raptor_uri_uri_string_is_file_uri(uri_string)) {
unsigned char *fragment=NULL;
char *filename;
raptor_uri* uri=NULL;
filename=raptor_uri_uri_string_to_filename_fragment(uri_string, &fragment);
if(filename && !access(filename, R_OK)) {
uri=(raptor_uri*)raptor_uri_filename_to_uri_string(filename);
/* If there was a fragment, reattach it to the new URI */
if(fragment) {
unsigned char *new_fragment;
raptor_uri* new_uri;
new_fragment=(unsigned char*)RAPTOR_MALLOC(cstring, strlen((const char*)fragment) + 1 + sizeof(char*));
if(!new_fragment)
return NULL;
*new_fragment='#';
strcpy((char*)new_fragment+1, (const char*)fragment);
new_uri=raptor_new_uri_relative_to_base(uri, new_fragment);
RAPTOR_FREE(cstring, new_fragment);
raptor_free_uri(uri);
uri=new_uri;
}
}
if(filename)
RAPTOR_FREE(cstring, filename);
if(fragment)
RAPTOR_FREE(cstring, fragment);
if(uri)
return uri;
}
len=strlen((const char*)uri_string);
p=(unsigned char*)RAPTOR_MALLOC(raptor_uri, len + sizeof(char*));
if(!p)
return NULL;
strcpy((char*)p, (const char*)uri_string);
return (raptor_uri*)p;
}
/*
* rasqal_expression_evaluate_uri_constructor:
* @e: The expression to evaluate.
* @eval_context: Evaluation context
*
* INTERNAL - Evaluate RASQAL_EXPR_URI and RASQAL_EXPR_IRI (string)
* expressions.
*
* Return value: A #rasqal_literal URI value or NULL on failure.
*/
static rasqal_literal*
rasqal_expression_evaluate_uri_constructor(rasqal_expression *e,
rasqal_evaluation_context *eval_context,
int *error_p)
{
rasqal_world* world = eval_context->world;
rasqal_literal* l1;
raptor_uri* dt_uri;
const unsigned char *s;
l1 = rasqal_expression_evaluate2(e->arg1, eval_context, error_p);
if(*error_p || !l1)
goto failed;
s = rasqal_literal_as_string_flags(l1, eval_context->flags, error_p);
if(*error_p)
goto failed;
dt_uri = raptor_new_uri_relative_to_base(world->raptor_world_ptr,
eval_context->base_uri,
s);
rasqal_free_literal(l1); l1 = NULL;
if(!dt_uri)
goto failed;
/* after this dt_uri is owned by the result literal */
return rasqal_new_uri_literal(world, dt_uri);
failed:
if(error_p)
*error_p = 1;
if(l1)
rasqal_free_literal(l1);
return NULL;
}
/**
* librdf_new_uri_relative_to_base:
* @base_uri: absolute base URI
* @uri_string: relative URI string
*
* Constructor - create a new #librdf_uri object from a URI string relative to a base URI.
*
* An empty uri_string or NULL is equivalent to
* librdf_new_uri_from_uri(base_uri)
*
* Return value: a new #librdf_uri object or NULL on failure
**/
librdf_uri*
librdf_new_uri_relative_to_base(librdf_uri* base_uri,
const unsigned char *uri_string) {
#ifdef LIBRDF_USE_RAPTOR_URI
return raptor_new_uri_relative_to_base(raptor_uri_get_world(base_uri),
base_uri,
uri_string);
#else
unsigned char *buffer;
int buffer_length;
librdf_uri* new_uri;
librdf_world *world=base_uri->world;
LIBRDF_ASSERT_OBJECT_POINTER_RETURN_VALUE(base_uri, librdf_uri, NULL);
if(!uri_string)
return NULL;
/* If URI string is empty, just copy base URI */
if(!*uri_string)
return librdf_new_uri_from_uri(base_uri);
/* +2 is for \0 plus an extra 1 for adding any missing URI path '/' */
buffer_length=base_uri->string_length + strlen((const char*)uri_string) +2;
buffer=(unsigned char*)LIBRDF_MALLOC(cstring, buffer_length);
if(!buffer)
return NULL;
raptor_uri_resolve_uri_reference(base_uri->string, uri_string,
buffer, buffer_length);
new_uri=librdf_new_uri(world, buffer);
LIBRDF_FREE(cstring, buffer);
return new_uri;
#endif /* !LIBRDF_USE_RAPTOR_URI */
}
