]> XML 3 RAPTOR Library XML XML and XML Writer Synopsis typedef raptor_xml_element; raptor_xml_element* raptor_new_xml_element (raptor_qname *name, unsigned char *xml_language, raptor_uri *xml_base); raptor_xml_element* raptor_new_xml_element_from_namespace_local_name (raptor_namespace *ns, unsigned char *name, unsigned char *xml_language, raptor_uri *xml_base); void raptor_free_xml_element (raptor_xml_element *element); raptor_qname* raptor_xml_element_get_name (raptor_xml_element *xml_element); raptor_qname** raptor_xml_element_get_attributes (raptor_xml_element *xml_element); int raptor_xml_element_get_attributes_count (raptor_xml_element *xml_element); void raptor_xml_element_set_attributes (raptor_xml_element *xml_element, raptor_qname **attributes, int count); int raptor_xml_element_declare_namespace (raptor_xml_element *xml_element, raptor_namespace *nspace); int raptor_xml_element_is_empty (raptor_xml_element *xml_element); const unsigned char* raptor_xml_element_get_language (raptor_xml_element *xml_element); raptor_xml_writer* raptor_new_xml_writer (raptor_namespace_stack *nstack, const raptor_uri_handler *uri_handler, void *uri_context, raptor_iostream *iostr, raptor_simple_message_handler error_handler, void *error_data, int canonicalize); void raptor_free_xml_writer (raptor_xml_writer *xml_writer); void raptor_xml_writer_empty_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); void raptor_xml_writer_start_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); void raptor_xml_writer_end_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); void raptor_xml_writer_cdata (raptor_xml_writer *xml_writer, unsigned char *s); void raptor_xml_writer_cdata_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); void raptor_xml_writer_raw (raptor_xml_writer *xml_writer, unsigned char *s); void raptor_xml_writer_raw_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); void raptor_xml_writer_comment (raptor_xml_writer *xml_writer, unsigned char *s); void raptor_xml_writer_comment_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); int raptor_xml_writer_features_enumerate (const raptor_feature feature, const char **name, raptor_uri **uri, const char **label); int raptor_xml_writer_set_feature (raptor_xml_writer *xml_writer, raptor_feature feature, int value); int raptor_xml_writer_set_feature_string (raptor_xml_writer *xml_writer, raptor_feature feature, unsigned char *value); int raptor_xml_writer_get_feature (raptor_xml_writer *xml_writer, raptor_feature feature); const unsigned char* raptor_xml_writer_get_feature_string (raptor_xml_writer *xml_writer, raptor_feature feature); int raptor_iostream_write_xml_element (raptor_iostream *iostr, raptor_xml_element *element, raptor_namespace_stack *nstack, int is_empty, int is_end, raptor_simple_message_handler error_handler, void *error_data, int depth); typedef raptor_xml_writer; int raptor_xml_any_escape_string (unsigned char *string, size_t len, unsigned char *buffer, size_t length, char quote, int xml_version, raptor_simple_message_handler error_handler, void *error_data); int raptor_xml_escape_string (unsigned char *string, size_t len, unsigned char *buffer, size_t length, char quote, raptor_simple_message_handler error_handler, void *error_data); int raptor_iostream_write_xml_any_escaped_string (raptor_iostream *iostr, unsigned char *string, size_t len, char quote, int xml_version, raptor_simple_message_handler error_handler, void *error_data); int raptor_iostream_write_xml_escaped_string (raptor_iostream *iostr, unsigned char *string, size_t len, char quote, raptor_simple_message_handler error_handler, void *error_data); int raptor_xml_name_check (unsigned char *string, size_t length, int xml_version); Description XML elements with optional attributes and an XML Writer class that can format raptor_xml_element into output forms, with optional "pretty printing" features such as indenting and collapsing empty elements. Also includes a utility function raptor_xml_name_check for checking a name is legal in some XML version. Details raptor_xml_element raptor_xml_elementraptor_xml_element* raptor_xml_element; Raptor XML Element class raptor_new_xml_element () raptor_new_xml_elementraptor_xml_element* raptor_new_xml_element (raptor_qname *name, unsigned char *xml_language, raptor_uri *xml_base); Constructor - create a new XML element from a QName name : The XML element name xml_language : the in-scope XML language (or NULL) xml_base : the in-scope XML base URI (or NULL) Returns : a new raptor_xml_element or NULL on failure raptor_new_xml_element_from_namespace_local_name () raptor_new_xml_element_from_namespace_local_nameraptor_xml_element* raptor_new_xml_element_from_namespace_local_name (raptor_namespace *ns, unsigned char *name, unsigned char *xml_language, raptor_uri *xml_base); Constructor - create a new XML element from an XML namespace and a local name Added in 1.4.16. ns : namespace name : the XML element local name xml_language : the in-scope XML language (or NULL) xml_base : base uri (or NULL) Returns : a new raptor_xml_element or NULL on failure raptor_free_xml_element () raptor_free_xml_elementvoid raptor_free_xml_element (raptor_xml_element *element); Destructor - destroy a raptor_xml_element object. element : XML Element raptor_xml_element_get_name () raptor_xml_element_get_nameraptor_qname* raptor_xml_element_get_name (raptor_xml_element *xml_element); Get the XML Name of an XML element xml_element : XML Element Returns : The Name. raptor_xml_element_get_attributes () raptor_xml_element_get_attributesraptor_qname** raptor_xml_element_get_attributes (raptor_xml_element *xml_element); Get the array of attributes on the XML element. Use raptor_xml_element_get_attributes_count() to get the count of the array size. xml_element : XML Element Returns : the array of qnames or NULL if none are present. raptor_xml_element_get_attributes_count () raptor_xml_element_get_attributes_countint raptor_xml_element_get_attributes_count (raptor_xml_element *xml_element); Get the number of attributes on the XML element. xml_element : XML Element Returns : Integer number of attributes - 0 or more. raptor_xml_element_set_attributes () raptor_xml_element_set_attributesvoid raptor_xml_element_set_attributes (raptor_xml_element *xml_element, raptor_qname **attributes, int count); Set the attributes on an XML element. xml_element : XML Element attributes : Array of XML Qname attributes with values count : Length of array raptor_xml_element_declare_namespace () raptor_xml_element_declare_namespaceint raptor_xml_element_declare_namespace (raptor_xml_element *xml_element, raptor_namespace *nspace); Declare a namespace on the XML Element. xml_element : XML Element nspace : raptor_namespace to declare Returns : non-0 if namespace cannot be declared raptor_xml_element_is_empty () raptor_xml_element_is_emptyint raptor_xml_element_is_empty (raptor_xml_element *xml_element); Check if an XML Element is empty. xml_element : XML Element Returns : non-0 if the element is empty. raptor_xml_element_get_language () raptor_xml_element_get_languageconst unsigned char* raptor_xml_element_get_language (raptor_xml_element *xml_element); Get the XML language of the element. xml_element : XML Element Returns : XML language or NULL if none in scope raptor_new_xml_writer () raptor_new_xml_writerraptor_xml_writer* raptor_new_xml_writer (raptor_namespace_stack *nstack, const raptor_uri_handler *uri_handler, void *uri_context, raptor_iostream *iostr, raptor_simple_message_handler error_handler, void *error_data, int canonicalize); Constructor - Create a new XML Writer writing XML to a raptor_iostream nstack : Namespace stack for the writer to start with (or NULL) uri_handler : URI handler function uri_context : URI handler context data iostr : I/O stream to write to error_handler : error handler function error_data : error handler data canonicalize : unused Returns : a new raptor_xml_writer object or NULL on failure raptor_free_xml_writer () raptor_free_xml_writervoid raptor_free_xml_writer (raptor_xml_writer *xml_writer); Destructor - Free XML Writer xml_writer : XML writer object raptor_xml_writer_empty_element () raptor_xml_writer_empty_elementvoid raptor_xml_writer_empty_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); Write an empty XML element to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object element : XML element object raptor_xml_writer_start_element () raptor_xml_writer_start_elementvoid raptor_xml_writer_start_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); Write a start XML element to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. Indents the start element if XML writer feature AUTO_INDENT is enabled. xml_writer : XML writer object element : XML element object raptor_xml_writer_end_element () raptor_xml_writer_end_elementvoid raptor_xml_writer_end_element (raptor_xml_writer *xml_writer, raptor_xml_element *element); Write an end XML element to the XML writer. Indents the end element if XML writer feature AUTO_INDENT is enabled. xml_writer : XML writer object element : XML element object raptor_xml_writer_cdata () raptor_xml_writer_cdatavoid raptor_xml_writer_cdata (raptor_xml_writer *xml_writer, unsigned char *s); Write CDATA XML-escaped to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : string to XML escape and write raptor_xml_writer_cdata_counted () raptor_xml_writer_cdata_countedvoid raptor_xml_writer_cdata_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); Write counted CDATA XML-escaped to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : string to XML escape and write len : length of string raptor_xml_writer_raw () raptor_xml_writer_rawvoid raptor_xml_writer_raw (raptor_xml_writer *xml_writer, unsigned char *s); Write a string raw to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : string to write raptor_xml_writer_raw_counted () raptor_xml_writer_raw_countedvoid raptor_xml_writer_raw_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); Write a counted string raw to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : string to write len : length of string raptor_xml_writer_comment () raptor_xml_writer_commentvoid raptor_xml_writer_comment (raptor_xml_writer *xml_writer, unsigned char *s); Write an XML comment to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : comment string to write raptor_xml_writer_comment_counted () raptor_xml_writer_comment_countedvoid raptor_xml_writer_comment_counted (raptor_xml_writer *xml_writer, unsigned char *s, unsigned int len); Write a counted XML comment to the XML writer. Closes any previous empty element if XML writer feature AUTO_EMPTY is enabled. xml_writer : XML writer object s : comment string to write len : length of string raptor_xml_writer_features_enumerate () raptor_xml_writer_features_enumerateint raptor_xml_writer_features_enumerate (const raptor_feature feature, const char **name, raptor_uri **uri, const char **label); Get list of xml_writer features. If uri is not NULL, a pointer to a new raptor_uri is returned that must be freed by the caller with raptor_free_uri(). feature : feature enumeration (0+) name : pointer to store feature short name (or NULL) uri : pointer to store feature URI (or NULL) label : pointer to feature label (or NULL) Returns : 0 on success, <0 on failure, >0 if feature is unknown raptor_xml_writer_set_feature () raptor_xml_writer_set_featureint raptor_xml_writer_set_feature (raptor_xml_writer *xml_writer, raptor_feature feature, int value); Set xml_writer features with integer values. The allowed features are available via raptor_features_enumerate(). xml_writer : raptor_xml_writer xml_writer object feature : feature to set from enumerated raptor_feature values value : integer feature value (0 or larger) Returns : non 0 on failure or if the feature is unknown raptor_xml_writer_set_feature_string () raptor_xml_writer_set_feature_stringint raptor_xml_writer_set_feature_string (raptor_xml_writer *xml_writer, raptor_feature feature, unsigned char *value); Set xml_writer features with string values. The allowed features are available via raptor_xml_writer_features_enumerate(). If the feature type is integer, the value is interpreted as an integer. xml_writer : raptor_xml_writer xml_writer object feature : feature to set from enumerated raptor_feature values value : feature value Returns : non 0 on failure or if the feature is unknown raptor_xml_writer_get_feature () raptor_xml_writer_get_featureint raptor_xml_writer_get_feature (raptor_xml_writer *xml_writer, raptor_feature feature); Get various xml_writer features. The allowed features are available via raptor_features_enumerate(). Note: no feature value is negative xml_writer : raptor_xml_writer serializer object feature : feature to get value Returns : feature value or < 0 for an illegal feature raptor_xml_writer_get_feature_string () raptor_xml_writer_get_feature_stringconst unsigned char* raptor_xml_writer_get_feature_string (raptor_xml_writer *xml_writer, raptor_feature feature); Get xml_writer features with string values. The allowed features are available via raptor_features_enumerate(). xml_writer : raptor_xml_writer serializer object feature : feature to get value Returns : feature value or NULL for an illegal feature or no value raptor_iostream_write_xml_element () raptor_iostream_write_xml_elementint raptor_iostream_write_xml_element (raptor_iostream *iostr, raptor_xml_element *element, raptor_namespace_stack *nstack, int is_empty, int is_end, raptor_simple_message_handler error_handler, void *error_data, int depth); Write a formatted XML element to a raptor_iostream iostr : iostream object element : XML element to format nstack : Namespace stack context to use in formatting is_empty : non-0 if element is empty is_end : non-0 if this is an end element (else is a start element) error_handler : error handler function error_data : error handler function data depth : XML element depth Returns : non-0 on failure raptor_xml_writer raptor_xml_writerraptor_xml_writer* raptor_xml_writer; Raptor XML Writer class raptor_xml_any_escape_string () raptor_xml_any_escape_stringint raptor_xml_any_escape_string (unsigned char *string, size_t len, unsigned char *buffer, size_t length, char quote, int xml_version, raptor_simple_message_handler error_handler, void *error_data); Return an XML-escaped version a string. Follows Canonical XML rules on Text Nodes and Attribute Nodes http://www.w3.org/TR/xml-c14nProcessingModel Both: Replaces & and < with &amp; and &lt; respectively, preserving other characters. Text Nodes: > is turned into &gt; #xD is turned into &#xD; Attribute Nodes: > is generated not &gt. #x9, #xA and #xD are turned into &#x9;, &#xA; and &#xD; entities. If quote is given it can be either of '\'' or '\"' which will be turned into &apos; or &quot; respectively. ASCII NUL ('\0') or any other character will not be escaped. If buffer is NULL, no work is done but the size of buffer required is returned. The output in buffer remains in UTF-8. If the input string is empty, a single NUL will be written to the buffer. string : string to XML escape (UTF-8) len : length of string buffer : the buffer to use for new string (UTF-8) length : buffer size quote : optional quote character to escape for attribute content, or 0 xml_version : XML 1.0 (10) or XML 1.1 (11) error_handler : error handler function error_data : error handler user data Returns : the number of bytes required / used or <0 on failure. raptor_xml_escape_string () raptor_xml_escape_stringint raptor_xml_escape_string (unsigned char *string, size_t len, unsigned char *buffer, size_t length, char quote, raptor_simple_message_handler error_handler, void *error_data); Return an XML 1.0-escaped version a string. See raptor_xml_any_escape_string() for the conditions on parameters. string : string to XML 1.0 escape (UTF-8) len : length of string buffer : the buffer to use for new string (UTF-8) length : buffer size quote : optional quote character to escape for attribute content, or 0 error_handler : error handler function error_data : error handler user data Returns : the number of bytes required / used or <0 on failure. raptor_iostream_write_xml_any_escaped_string () raptor_iostream_write_xml_any_escaped_stringint raptor_iostream_write_xml_any_escaped_string (raptor_iostream *iostr, unsigned char *string, size_t len, char quote, int xml_version, raptor_simple_message_handler error_handler, void *error_data); Write an XML-escaped version of a string to an iostream. See raptor_xml_escape_string() for the escapes performed and the conditions on quote and string. XML 1.1 allows additional characters in XML such as U+0001 to U+001F inclusive. iostr : the raptor_iostream to write to string : string to XML escape (UTF-8) len : length of string quote : optional quote character to escape for attribute content, or 0 xml_version : XML version - 10 (XML 1.0) or 11 (XML 1.1) error_handler : error handler function error_data : error handler data Returns : non 0 on failure raptor_iostream_write_xml_escaped_string () raptor_iostream_write_xml_escaped_stringint raptor_iostream_write_xml_escaped_string (raptor_iostream *iostr, unsigned char *string, size_t len, char quote, raptor_simple_message_handler error_handler, void *error_data); Write an XML 1.0-escaped version of a string to an iostream. See raptor_iostream_write_xml_any_escaped_string() for the escapes performed and the conditions on quote and string. iostr : the raptor_iostream to write to string : string to XML 1.0 escape (UTF-8) len : length of string quote : optional quote character to escape for attribute content, or 0 error_handler : error handler function error_data : error handler data Returns : non 0 on failure raptor_xml_name_check () raptor_xml_name_checkint raptor_xml_name_check (unsigned char *string, size_t length, int xml_version); Check a string is a legal XML name (and legal UTF8). xml_version is either 10 (for XML 1.0) or 11 for (XML 1.1). Any other version fails. string : UTF-8 name string length : length of string xml_version : XML version Returns : Non 0 if the string is a legal XML name