XML QName

XML QName — XML Namespace-qualified names.

Synopsis

typedef             raptor_qname;
raptor_qname*       raptor_new_qname                    (raptor_namespace_stack *nstack,
                                                         unsigned char *name,
                                                         unsigned char *value,
                                                         raptor_simple_message_handler error_handler,
                                                         void *error_data);
raptor_qname*       raptor_new_qname_from_namespace_local_name
                                                        (raptor_namespace *ns,
                                                         unsigned char *local_name,
                                                         unsigned char *value);
raptor_qname*       raptor_qname_copy                   (raptor_qname *qname);
void                raptor_free_qname                   (raptor_qname *name);
int                 raptor_qname_equal                  (raptor_qname *name1,
                                                         raptor_qname *name2);
raptor_uri*         raptor_qname_string_to_uri          (raptor_namespace_stack *nstack,
                                                         unsigned char *name,
                                                         size_t name_len,
                                                         raptor_simple_message_handler error_handler,
                                                         void *error_data);
int                 raptor_iostream_write_qname         (raptor_iostream *iostr,
                                                         raptor_qname *qname);
const unsigned char* raptor_qname_get_counted_value     (raptor_qname *name,
                                                         size_t *length_p);
const unsigned char* raptor_qname_get_local_name        (raptor_qname *name);
const raptor_namespace* raptor_qname_get_namespace      (raptor_qname *name);
const unsigned char* raptor_qname_get_value             (raptor_qname *name);
unsigned char*      raptor_qname_to_counted_name        (raptor_qname *qname,
                                                         size_t *length_p);

Description

Wraps an XML name inside an associated XML namespace in some XML document context (typically). Mostly used inside parsing XML to manage qnames for XML element and attribute names.

Details

raptor_qname

raptor_qname* raptor_qname;

Raptor XML qname class

raptor_new_qname ()

raptor_qname*       raptor_new_qname                    (raptor_namespace_stack *nstack,
                                                         unsigned char *name,
                                                         unsigned char *value,
                                                         raptor_simple_message_handler error_handler,
                                                         void *error_data);

Constructor - create a new XML qname.

Create a new qname from the local element/attribute name, with optional (attribute) value. The namespace stack is used to look up the name and find the namespace and generate the URI of the qname.

`nstack` :	namespace stack to look up for namespaces
`name` :	element or attribute name
`value` :	attribute value (else is an element)
`error_handler` :	function to call on an error
`error_data` :	user data for error function
Returns :	a new raptor_qname object or NULL on failure

raptor_new_qname_from_namespace_local_name ()

raptor_qname*       raptor_new_qname_from_namespace_local_name
                                                        (raptor_namespace *ns,
                                                         unsigned char *local_name,
                                                         unsigned char *value);

Constructor - create a new XML qname.

Create a new qname from the namespace and local element/attribute name, with optional (attribute) value.

raptor_init() MUST have been called before calling this function. Use raptor_new_qname_from_namespace_local_name_v2() if using raptor_world APIs.

`ns` :	namespace of qname (or NULL)
`local_name` :	element or attribute name
`value` :	attribute value (else is an element)
Returns :	a new raptor_qname object or NULL on failure

raptor_qname_copy ()

raptor_qname*       raptor_qname_copy                   (raptor_qname *qname);

Copy constructor - copy an existing XML qname.

`qname` :	existing qname
Returns :	a new raptor_qname object or NULL on failure

raptor_free_qname ()

void                raptor_free_qname                   (raptor_qname *name);

Destructor - destroy a raptor_qname object.

name :

raptor_qname object

raptor_qname_equal ()

int                 raptor_qname_equal                  (raptor_qname *name1,
                                                         raptor_qname *name2);

Compare two XML Qnames for equality.

`name1` :	first raptor_qname
`name2` :	second raptor_name
Returns :	non-0 if the qnames are equal.

raptor_qname_string_to_uri ()

raptor_uri*         raptor_qname_string_to_uri          (raptor_namespace_stack *nstack,
                                                         unsigned char *name,
                                                         size_t name_len,
                                                         raptor_simple_message_handler error_handler,
                                                         void *error_data);

Get the URI for a qname.

Utility function to turn a string representing a QName in the N3 style, into a new URI representing it. A NULL name or name ":" returns the default namespace URI. A name "p:" returns namespace name (URI) for the namespace with prefix "p".

Partially equivalent to qname=raptor_new_qname(nstack, name, NULL, error_handler, error_data); uri=raptor_uri_copy(qname->uri); raptor_free_qname(qname) but without making the qname, and it also handles the NULL and ":" name cases as well as error checking.

`nstack` :	raptor_namespace_stack to decode the namespace
`name` :	QName string or NULL
`name_len` :	QName string length
`error_handler` :	function to call on an error
`error_data` :	user data for error function
Returns :	new raptor_uri object or NULL on failure

raptor_iostream_write_qname ()

int                 raptor_iostream_write_qname         (raptor_iostream *iostr,
                                                         raptor_qname *qname);

Write a formatted qname to an iostream

`iostr` :	raptor iosteram
`qname` :	QName to write
Returns :	non-0 on failure

raptor_qname_get_counted_value ()

const unsigned char* raptor_qname_get_counted_value     (raptor_qname *name,
                                                         size_t *length_p);

Get the raptor_value of an XML QName.

`name` :	raptor_qname object
`length_p` :	pointer to variable to store length of name (or NULL)
Returns :	the value

raptor_qname_get_local_name ()

const unsigned char* raptor_qname_get_local_name        (raptor_qname *name);

Get the raptor_local_name of an XML QName.

`name` :	raptor_qname object
Returns :	the local_name

raptor_qname_get_namespace ()

const raptor_namespace* raptor_qname_get_namespace      (raptor_qname *name);

Get the raptor_namespace of an XML QName.

`name` :	raptor_qname object
Returns :	the namespace

raptor_qname_get_value ()

const unsigned char* raptor_qname_get_value             (raptor_qname *name);

Get the raptor_value of an XML QName.

`name` :	raptor_qname object
Returns :	the value

raptor_qname_to_counted_name ()

unsigned char*      raptor_qname_to_counted_name        (raptor_qname *qname,
                                                         size_t *length_p);

Get the string form of a QName name

`qname` :	QName to write
`length_p` :	pointer to variable to store length of name (or NULL)
Returns :	string or NULL on failure

			Raptor RDF Syntax Parsing and Serializing Library Manual
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