XML QName

XML QName — XML Namespace-qualified names.

Synopsis

typedef             raptor_qname;
raptor_qname *      raptor_new_qname                    (raptor_namespace_stack *nstack,
                                                         const unsigned char *name,
                                                         const unsigned char *value);
raptor_qname *      raptor_new_qname_from_namespace_local_name
                                                        (raptor_world *world,
                                                         raptor_namespace *ns,
                                                         const unsigned char *local_name,
                                                         const unsigned char *value);
raptor_qname *      raptor_new_qname_from_namespace_uri (raptor_namespace_stack *nstack,
                                                         raptor_uri *uri,
                                                         int xml_version);
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,
                                                         const unsigned char *name,
                                                         size_t name_len);
int                 raptor_qname_write                  (raptor_qname *qname,
                                                         raptor_iostream *iostr);
unsigned char *     raptor_qname_format_as_xml          (const raptor_qname *qname,
                                                         size_t *length_p);
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,
                                                         const unsigned char *name,
                                                         const unsigned char *value);

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)

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_world *world,
                                                         raptor_namespace *ns,
                                                         const unsigned char *local_name,
                                                         const 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.

world :

raptor_world object

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_new_qname_from_namespace_uri ()

raptor_qname *      raptor_new_qname_from_namespace_uri (raptor_namespace_stack *nstack,
                                                         raptor_uri *uri,
                                                         int xml_version);

Make an appropriate XML Qname from the namespaces on a namespace stack

Makes a qname from the in-scope namespaces in a stack if the URI matches the prefix and the rest is a legal XML name.

nstack :

namespace stack

uri :

URI to use to make qname

xml_version :

XML Version

Returns :

raptor_qname for the URI 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,
                                                         const unsigned char *name,
                                                         size_t name_len);

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); 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

Returns :

new raptor_uri object or NULL on failure

raptor_qname_write ()

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

Write a formatted qname to an iostream

qname :

QName to write

iostr :

raptor iosteram

Returns :

non-0 on failure

raptor_qname_format_as_xml ()

unsigned char *     raptor_qname_format_as_xml          (const raptor_qname *qname,
                                                         size_t *length_p);

Format a qname in an XML style into a newly allocated string.

Generates a string of the form a:b="value" or a="value" depending on the qname's prefix. Double quotes are always used.

If length_p is not NULL, the length of the string is stored in the address it points to.

qname :

qname object

length_p :

pointer to length (or NULL)

Returns :

qname formatted as newly allocated string or NULL 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 :

new string name or NULL on failure


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