/* private */
SLV2Port
slv2_port_new(SLV2World world, uint32_t index, const char* symbol)
{
struct _SLV2Port* port = malloc(sizeof(struct _SLV2Port));
port->index = index;
port->symbol = slv2_value_new(world, SLV2_VALUE_STRING, symbol);
port->classes = slv2_values_new();
//port->node_id = strdup(node_id);
return port;
}
/** Create a new SLV2Value from a librdf_node, or return NULL if impossible */
SLV2Value
slv2_value_from_librdf_node(SLV2World world, librdf_node* node)
{
SLV2Value result = NULL;
librdf_uri* datatype_uri = NULL;
SLV2ValueType type = SLV2_VALUE_STRING;
switch (librdf_node_get_type(node)) {
case LIBRDF_NODE_TYPE_RESOURCE:
type = SLV2_VALUE_URI;
result = slv2_value_new_librdf_uri(world, librdf_node_get_uri(node));
break;
case LIBRDF_NODE_TYPE_LITERAL:
datatype_uri = librdf_node_get_literal_value_datatype_uri(node);
if (datatype_uri) {
if (!strcmp((const char*)librdf_uri_as_string(datatype_uri),
"http://www.w3.org/2001/XMLSchema#integer"))
type = SLV2_VALUE_INT;
else if (!strcmp((const char*)librdf_uri_as_string(datatype_uri),
"http://www.w3.org/2001/XMLSchema#decimal"))
type = SLV2_VALUE_FLOAT;
else
fprintf(stderr, "Unknown datatype %s\n", librdf_uri_as_string(datatype_uri));
}
result = slv2_value_new(world, type, (const char*)librdf_node_get_literal_value(node));
break;
case LIBRDF_NODE_TYPE_BLANK:
type = SLV2_VALUE_STRING;
result = slv2_value_new(world, type, (const char*)librdf_node_get_blank_identifier(node));
break;
case LIBRDF_NODE_TYPE_UNKNOWN:
default:
fprintf(stderr, "Unknown RDF node type %d\n", librdf_node_get_type(node));
break;
}
return result;
}