# redland(3) - man - phpman [redland(3)](https://www.chedong.com/phpMan.php/man/redland/3/markdown) Redland RDF Application Framework [redland(3)](https://www.chedong.com/phpMan.php/man/redland/3/markdown) ## NAME redland - Resource Description Framework (RDF) Library ## VERSION 1.0.16 ## SYNOPSIS #include ## DESCRIPTION **redland** is a library providing support for the Resource Description Framework (RDF) written in ANSI C with APIs in several other languages. This manual page lists most of the redland public API functions but does not claim to be a complete summary of the entire API. For the complete API with full details of the function interface, see the HTML API documentation either on the Redland web site at <> or with the software release in the docs/api directory. ## FUNCTIONS The functions defined by **redland** are all defined with the "librdf_" prefix ### class world librdf_world* **librdf**___**new**___**world**(_void_) void **librdf**___**free**___**world**(librdf_world* _world_) void **librdf**___**world**___**open**(librdf_world* _world_) void **librdf**___**world**___**set**___**error**(librdf_world* _world_, void* _user_data_, void (*_error_fn_)(void* _user_data_, const char* _msg_, ...)) void **librdf**___**world**___**set**___**warning**(librdf_world* _world_, void* _user_data_, void (*_warning_fn_)(void* _user_data_, const char* _msg_, ...)) void **librdf**___**world**___**set**___**digest**(librdf_world*, const char* _name_) void **librdf**___**world**___**set**___**uris**___**hash**(librdf_world* _world_, librdf_hash* _uris_hash_) const char* **librdf**___**world**___**get**___**feature**(librdf_world* _world_, librdf_uri* _feature_) int **librdf**___**world**___**set**___**feature**(librdf_world* _world_, librdf_uri* _feature_, const char* _value_) ### class iterator librdf_iterator* **librdf**___**new**___**iterator**(librdf_world* _world_, void* _context_, int (*_is_end_)(void*), void* (*_get_next_)(void*), void (*_finished_)(void*)) void **librdf**___**free**___**iterator**(librdf_iterator*) int **librdf**___**iterator**___**end**(librdf_iterator* _iterator_) int **librdf**___**iterator**___**finished**(librdf_iterator* _iterator_) int **librdf**___**iterator**___**next**(librdf_iterator* _iterator_) void* **librdf**___**iterator**___**get**___**object**(librdf_iterator* _iterator_) void* **librdf**___**iterator**___**get**___**context**(librdf_iterator* _iterator_) void* **librdf**___**iterator**___**get**___**key**(librdf_iterator* _iterator_) void* **librdf**___**iterator**___**get**___**value**(librdf_iterator* _iterator_) int **librdf**___**iterator**___**add**___**map**(librdf_iterator* _iterator_, void* (*_fn_)(void* _context_, void* _item_), void* _context_) void* **librdf**___**iterator**___**map**___**remove**___**duplicate**___**nodes**(void* _item_, void* _user_data_) ### class digest void **librdf**___**digest**___**register**___**factory**(librdf_world* _world_, const char* _name_, void (*_factory_) (librdf_digest_factory*)) librdf_digest_factory* **librdf**___**get**___**digest**___**factory**(librdf_world* _world_, const char* _name_) librdf_digest* **librdf**___**new**___**digest**(librdf_world* _world_, char* _name_) librdf_digest* **librdf**___**new**___**digest**___**from**___**factory**(librdf_world* _world_, librdf_digest_factory* _factory_) void **librdf**___**free**___**digest**(librdf_digest* _digest_) void **librdf**___**digest**___**init**(librdf_digest* _digest_) void **librdf**___**digest**___**update**(librdf_digest* _digest_, unsigned char* _buf_, size_t _length_) void **librdf**___**digest**___**final**(librdf_digest* _digest_) void* **librdf**___**digest**___**get**___**digest**(librdf_digest* _digest_) char* **librdf**___**digest**___**to**___**string**(librdf_digest* _digest_) void **librdf**___**digest**___**print**(librdf_digest* _digest_, FILE* _fh_) ### class uri librdf_uri* **librdf**___**new**___**uri**(librdf_world* _world_, const unsigned char * _string_) librdf_uri* **librdf**___**new**___**uri**___**from**___**uri**(librdf_uri* _uri_) librdf_uri* **librdf**___**new**___**uri**___**from**___**uri**___**local**___**name**(librdf_uri* _uri_, const unsigned char* _local_name_) void **librdf**___**free**___**uri**(librdf_uri* _uri_) unsigned char* **librdf**___**uri**___**as**___**string**(librdf_uri* _uri_) unsigned char* **librdf**___**uri**___**as**___**counted**___**string**(librdf_uri* _uri_, size_t* _len_p_) librdf_digest* **librdf**___**uri**___**get**___**digest**(librdf_uri* _uri_) void librdf_uri_print>(librdf_uri* _uri_, FILE* _fh_) unsigned char* **librdf**___**uri**___**to**___**string**(librdf_uri* _uri_) unsigned char* **librdf**___**uri**___**to**___**counted**___**string**(librdf_uri* _uri_, size_t* _len_p_) int **librdf**___**uri**___**equals**(librdf_uri* _first_uri_, librdf_uri* _second_uri_) int **librdf**___**uri**___**is**___**file**___**uri**(librdf_uri* _uri_) const char* **librdf**___**uri**___**to**___**filename**(librdf_uri* _uri_) librdf_uri* **librdf**___**new**___**uri**___**normalised**___**to**___**base**(const unsigned char* _uri_string_, librdf_uri* _source_uri_, librdf_uri* _base_uri_) librdf_uri* **librdf**___**new**___**uri**___**relative**___**to**___**base**(librdf_uri* _base_uri_, const unsigned char* _uri_string_) librdf_uri* **librdf**___**new**___**uri**___**from**___**filename**(librdf_world* _world_, const char* _filename_) ### class node librdf_node* **librdf**___**new**___**node**(librdf_world* _world_) librdf_node* **librdf**___**new**___**node**___**from**___**uri**___**string**(librdf_world* _world_, const char* _string_) librdf_node* **librdf**___**new**___**node**___**from**___**uri**(librdf_world* _world_, librdf_uri* _uri_) librdf_node* **librdf**___**new**___**node**___**from**___**uri**___**local**___**name**(librdf_world* _world_, librdf_uri* _uri_, const char* _local_name_) librdf_node* **librdf**___**new**___**node**___**from**___**normalised**___**uri**___**string**(librdf_world* _world_, const char* _uri_string_, librdf_uri* _source_uri_, librdf_uri* _base_uri_) librdf_node* **librdf**___**new**___**node**___**from**___**literal**(librdf_world* _world_, const char* _string_, const char* _xml_language_, int _xml_space_, int _is_wf_xml_) librdf_node* **librdf**___**new**___**node**___**from**___**typed**___**literal**(librdf_world* _world_, const unsigned char* _string_, const char* _xml_language_, librdf_uri* _datatype_uri_) librdf_node* **librdf**___**new**___**node**___**from**___**blank**___**identifier**(librdf_world* _world_, const unsigned char* _identifier_) librdf_node* **librdf**___**new**___**node**___**from**___**node**(librdf_node* _node_) void **librdf**___**node**___**init**(librdf_world* _world_, librdf_node* _node_) void **librdf**___**free**___**node**(librdf_node* _r_) librdf_uri* **librdf**___**node**___**get**___**uri**(librdf_node* _node_) librdf_node_type **librdf**___**node**___**get**___**type**(librdf_node* _node_) unsigned char* **librdf**___**node**___**get**___**literal**___**value**(librdf_node* _node_) unsigned char* **librdf**___**node**___**get**___**literal**___**value**___**as**___**counted**___**string**(librdf_node* _node_, size_t* _len_p_) char* **librdf**___**node**___**get**___**literal**___**value**___**as**___**latin1**(librdf_node* _node_) char* **librdf**___**node**___**get**___**literal**___**value**___**language**(librdf_node* _node_) int **librdf**___**node**___**get**___**literal**___**value**___**is**___**wf**___**xml**(librdf_node* _node_) librdf_uri* **librdf**___**node**___**get**___**literal**___**value**___**datatype**___**uri**(librdf_node* _node_) int **librdf**___**node**___**get**___**li**___**ordinal**(librdf_node* _node_) unsigned char* **librdf**___**node**___**get**___**blank**___**identifier**(librdf_node* _node_) int **librdf**___**node**___**is**___**resource**(librdf_node* _node_) int **librdf**___**node**___**is**___**literal**(librdf_node* _node_) int **librdf**___**node**___**is**___**blank**(librdf_node* _node_) librdf_digest* **librdf**___**node**___**get**___**digest**(librdf_node* _node_) size_t **librdf**___**node**___**encode**(librdf_node* _node_, unsigned char* _buffer_, size_t _length_) size_t **librdf**___**node**___**decode**(librdf_node* _node_, unsigned char* _buffer_, size_t _length_) unsigned char* **librdf**___**node**___**to**___**string**(librdf_node* _node_) unsigned char* **librdf**___**node**___**to**___**counted**___**string**(librdf_node* _node_, size_t* _len_p_) void **librdf**___**node**___**print**(librdf_node* _node_, FILE* _fh_) int **librdf**___**node**___**equals**(librdf_node* _first_node_, librdf_node* _second_node_) ### class concepts The library provides macros for all of the RDF and RDFS concepts - nodes and URIs. For example, "LIBRDF_MS_Alt" for the librdf_node for the rdf:Alt concept and "LIBRDF_MS_Alt_URI" for the librdf_uri for the URI reference of rdf:Alt. "LIBRDF_URI_RDF_MS" and "LIBRDF_URI_RDF_SCHEMA" provide the librdf_uri objects for the RDF and RDFS namespace URIs. They must be copied using **librdf**___**new**___**uri**___**from**___**uri** to be shared correctly. void **librdf**___**get**___**concept**___**by**___**name**(librdf_world* _world_, int _is_ms_, const char* _name_, librdf_uri **_uri_p_, librdf_node **_node_p_) ### class statement librdf_statement* **librdf**___**new**___**statement**(librdf_world* _world_) librdf_statement* **librdf**___**new**___**statement**___**from**___**statement**(librdf_statement* _statement_) librdf_statement* **librdf**___**new**___**statement**___**from**___**nodes**(librdf_world* _world_, librdf_node* _subject_, librdf_node* _predicate_, librdf_node* _object_) void **librdf**___**statement**___**init**(librdf_world* _world_, librdf_statement* _statement_) void **librdf**___**statement**___**clear**(librdf_statement* _statement_) void **librdf**___**free**___**statement**(librdf_statement* _statement_) librdf_node* **librdf**___**statement**___**get**___**subject**(librdf_statement* _statement_) void **librdf**___**statement**___**set**___**subject**(librdf_statement* _statement_, librdf_node* _subject_) librdf_node* **librdf**___**statement**___**get**___**predicate**(librdf_statement* _statement_) void **librdf**___**statement**___**set**___**predicate**(librdf_statement* _statement_, librdf_node* _predicate_) librdf_node* **librdf**___**statement**___**get**___**object**(librdf_statement* _statement_) void **librdf**___**statement**___**set**___**object**(librdf_statement* _statement_, librdf_node* _object_) int **librdf**___**statement**___**is**___**complete**(librdf_statement* _statement_) char* **librdf**___**statement**___**to**___**string**(librdf_statement* _statement_) void **librdf**___**statement**___**print**(librdf_statement* _statement_, FILE* _fh_) int **librdf**___**statement**___**equals**(librdf_statement* _statement1_, librdf_statement* _statement2_) int **librdf**___**statement**___**match**(librdf_statement* _statement_, librdf_statement* _partial_statement_) size_t **librdf**___**statement**___**encode**(librdf_statement* _statement_, unsigned char* _buffer_, size_t _length_) size_t **librdf**___**statement**___**encode**___**parts**(librdf_statement* _statement_, unsigned char* _buffer_, size_t _length_, librdf_statement_part _fields_) size_t **librdf**___**statement**___**decode**(librdf_statement* _statement_, unsigned char* _buffer_, size_t _length_) size_t **librdf**___**statement**___**decode**___**parts**(librdf_statement* _statement_, librdf_node** _context_node_, unsigned char* _buffer_, size_t _length_) ### class model librdf_model* **librdf**___**new**___**model**(librdf_world* _world_, librdf_storage* _storage_, char* _options_string_) librdf_model* **librdf**___**new**___**model**___**with**___**options**(librdf_world* _world_, librdf_storage* _storage_, librdf_hash* _options_) librdf_model* **librdf**___**new**___**model**___**from**___**model**(librdf_model* _model_) void **librdf**___**free**___**model**(librdf_model* _model_) int **librdf**___**model**___**size**(librdf_model* _model_) int **librdf**___**model**___**add**(librdf_model* _model_, librdf_node* _subject_, librdf_node* _predicate_, librdf_node* _object_) int **librdf**___**model**___**add**___**string**___**literal**___**statement**(librdf_model* _model_, librdf_node* _subject_, librdf_node* _predicate_, char* _string_, char* _xml_language_, int _xml_space_, int _is_wf_xml_) int **librdf**___**model**___**add**___**typed**___**literal**___**statement**(librdf_model* _model_, librdf_node* _subject_, librdf_node* _predicate_, const unsigned char* _string_, char* _xml_language_, librdf_uri* _datatype_uri_) int **librdf**___**model**___**add**___**statement**(librdf_model* _model_, librdf_statement* _statement_) int **librdf**___**model**___**add**___**statements**(librdf_model* _model_, librdf_stream* _statement_stream_) int **librdf**___**model**___**remove**___**statement**(librdf_model* _model_, librdf_statement* _statement_) int **librdf**___**model**___**contains**___**statement**(librdf_model* _model_, librdf_statement* _statement_) int **librdf**___**model**___**has**___**arc**___**in**(librdf_model* _model_, librdf_node* _node_, librdf_node* _property_) int **librdf**___**model**___**has**___**arc**___**out**(librdf_model* _model_, librdf_node* _node_, librdf_node* _property_) librdf_stream* **librdf**___**model**___**as**___**stream**(librdf_model* _model_) librdf_stream* **librdf**___**model**___**find**___**statements**(librdf_model* _model_, librdf_statement* _statement_) librdf_stream* **librdf**___**model**___**find**___**statements**___**in**___**context**(librdf_model* _model_, librdf_statement* _statement_, librdf_node* _context_node_) librdf_stream* **librdf**___**model**___**find**___**statements**___**with**___**options**(librdf_model* _model_, librdf_statement* _statement_, librdf_node* _context_node_, librdf_hash* _options_) librdf_iterator* **librdf**___**model**___**get**___**contexts**(librdf_model* _model_) librdf_iterator* **librdf**___**model**___**get**___**sources**(librdf_model* _model_, librdf_node* _arc_, librdf_node* _target_) librdf_iterator* **librdf**___**model**___**get**___**arcs**(librdf_model* _model_, librdf_node* _source_, librdf_node* _target_) librdf_iterator* **librdf**___**model**___**get**___**targets**(librdf_model* _model_, librdf_node* _source_, librdf_node* _arc_) librdf_node* **librdf**___**model**___**get**___**source**(librdf_model* _model_, librdf_node* _arc_, librdf_node* _target_) librdf_node* **librdf**___**model**___**get**___**arc**(librdf_model* _model_, librdf_node* _source_, librdf_node* _target_) librdf_node* **librdf**___**model**___**get**___**target**(librdf_model* _model_, librdf_node* _source_, librdf_node* _arc_) librdf_iterator* **librdf**___**model**___**get**___**arcs**___**in**(librdf_model* _model_, librdf_node* _node_) librdf_iterator* **librdf**___**model**___**get**___**arcs**___**out**(librdf_model* _model_, librdf_node* _node_) int **librdf**___**model**___**add**___**submodel**(librdf_model* _model_, librdf_model* _sub_model_) int **librdf**___**model**___**remove**___**submodel**(librdf_model* _model_, librdf_model* _sub_model_) void **librdf**___**model**___**print**(librdf_model* _model_, FILE* _fh_) int **librdf**___**model**___**context**___**add**___**statement**(librdf_model* _model_, librdf_node* _context_, librdf_statement* _statement_) int **librdf**___**model**___**context**___**add**___**statements**(librdf_model* _model_, librdf_node* _context_, librdf_stream* _stream_) int **librdf**___**model**___**context**___**remove**___**statement**(librdf_model* _model_, librdf_node* _context_, librdf_statement* _statement_) int **librdf**___**model**___**context**___**remove**___**statements**(librdf_model* _model_, librdf_node* _context_) librdf_stream* **librdf**___**model**___**context**___**as**___**stream**(librdf_model* _model_, librdf_node* _context_) librdf_stream* **librdf**___**model**___**query**(librdf_model* _model_, librdf_query* _query_) librdf_stream* **librdf**___**model**___**query**___**string**(librdf_model* _model_, const char* _name_, librdf_uri* _uri_, const unsigned char* _query_string_) void **librdf**___**model**___**sync**(librdf_model* _model_) librdf_storage* **librdf**___**model**___**get**___**storage**(librdf_model* _model_) librdf_node* **librdf**___**model**___**get**___**feature**(librdf_model* _model_, librdf_uri* _feature_) =item int **librdf**___**model**___**set**___**feature**(librdf_model* _model_, librdf_uri* _feature_, librdf_node* _value_) ### class storage void **librdf**___**storage**___**register**___**factory**(const char* _name_, void (*_factory_) (librdf_storage_factory*)) librdf_storage* **librdf**___**new**___**storage**(librdf_world* _world_, char* _storage_name_, char* _name_, char* _options_string_) librdf_storage* **librdf**___**new**___**storage**___**with**___**options**(librdf_world* _world_, char* _storage_name_, char* _name_, librdf_hash* _options_) librdf_storage* **librdf**___**new**___**storage**___**from**___**storage**(librdf_storage* _old_storage_) librdf_storage* **librdf**___**new**___**storage**___**from**___**factory**(librdf_world* _world_, librdf_storage_factory* _factory_, char* _name_, librdf_hash* _options_) void **librdf**___**free**___**storage**(librdf_storage* _storage_) int **librdf**___**storage**___**open**(librdf_storage* _storage_, librdf_model* _model_) int **librdf**___**storage**___**close**(librdf_storage* _storage_) int **librdf**___**storage**___**get**(librdf_storage* _storage_, void* _key_, size_t _key_len_, void **_value_, size_t* _value_len_, unsigned int _flags_) int **librdf**___**storage**___**size**(librdf_storage* _storage_) int **librdf**___**storage**___**add**___**statement**(librdf_storage* _storage_, librdf_statement* _statement_) int **librdf**___**storage**___**add**___**statements**(librdf_storage* _storage_, librdf_stream* _statement_stream_) int **librdf**___**storage**___**remove**___**statement**(librdf_storage* _storage_, librdf_statement* _statement_) int **librdf**___**storage**___**contains**___**statement**(librdf_storage* _storage_, librdf_statement* _statement_) librdf_stream* **librdf**___**storage**___**serialise**(librdf_storage* _storage_) librdf_stream* **librdf**___**storage**___**find**___**statements**(librdf_storage* _storage_, librdf_statement* _statement_) librdf_iterator* **librdf**___**storage**___**get**___**sources**(librdf_storage* _storage_, librdf_node* _arc_, librdf_node* _target_) librdf_iterator* **librdf**___**storage**___**get**___**arcs**(librdf_storage* _storage_, librdf_node* _source_, librdf_node* _target_) librdf_iterator* **librdf**___**storage**___**get**___**targets**(librdf_storage* _storage_, librdf_node* _source_, librdf_node* _arc_) librdf_iterator* **librdf**___**storage**___**get**___**arcs**___**in**(librdf_storage* _storage_, librdf_node* _node_) librdf_iterator* **librdf**___**storage**___**get**___**arcs**___**out**(librdf_storage* _storage_, librdf_node* _node_) int **librdf**___**storage**___**has**___**arc**___**in**(librdf_storage* _storage_, librdf_node* _node_, librdf_node* _property_) int **librdf**___**storage**___**has**___**arc**___**out**(librdf_storage* _storage_, librdf_node* _node_, librdf_node* _property_) int **librdf**___**storage**___**context**___**add**___**statement**(librdf_storage* _storage_, librdf_node* _context_, librdf_statement* _statement_) int **librdf**___**storage**___**context**___**add**___**statements**(librdf_storage* _storage_, librdf_node* _context_, librdf_stream* _stream_) int **librdf**___**storage**___**context**___**remove**___**statement**(librdf_storage* _storage_, librdf_node* _context_, librdf_statement* _statement_) int **librdf**___**storage**___**context**___**remove**___**statements**(librdf_storage* _storage_, librdf_node* _context_) librdf_stream* **librdf**___**storage**___**context**___**as**___**stream**(librdf_storage* _storage_, librdf_node* _context_) int **librdf**___**storage**___**supports**___**query**(librdf_storage* _storage_, librdf_query* _query_) librdf_stream* **librdf**___**storage**___**query**(librdf_storage* _storage_, librdf_query* _query_) void **librdf**___**storage**___**sync**(librdf_storage* _storage_) ### class parser void **librdf**___**parser**___**register**___**factory**(librdf_world* _world_, const char* _name_, const char* _mime_type_, const char* _uri_string_, void (*_factory_) (librdf_parser_factory*)) librdf_parser* **librdf**___**new**___**parser**(librdf_world* _world_, const char* _name_, const char* _mime_type_, librdf_uri* _type_uri_) librdf_parser* **librdf**___**new**___**parser**___**from**___**factory**(librdf_world* _world_, librdf_parser_factory* _factory_) void **librdf**___**free**___**parser**(librdf_parser* _parser_) librdf_stream* **librdf**___**parser**___**parse**___**as**___**stream**(librdf_parser* _parser_, librdf_uri* _uri_, librdf_uri* _base_uri_) int **librdf**___**parser**___**parse**___**into**___**model**(librdf_parser* _parser_, librdf_uri* _uri_, librdf_uri* _base_uri_, librdf_model* _model_) librdf_stream* **librdf**___**parser**___**parse**___**string**___**as**___**stream**(librdf_parser* _parser_, const unsigned char* _string_, librdf_uri* _base_uri_) int librdf_parser_parse_string_into_model(librdf_parser* _parser_, const unsigned char* _string_, librdf_uri* _base_uri_, librdf_model* _model_) void **librdf**___**parser**___**set**___**error**(librdf_parser* _parser_, void* _user_data_, void (*_error_fn_)(void* _user_data_, const char* _msg_, ...)) void **librdf**___**parser**___**set**___**warning**(librdf_parser* _parser_, void* _user_data_, void (*_warning_fn_)(void* _user_data_, const char* _msg_, ...)) librdf_node* **librdf**___**parser**___**get**___**feature**(librdf_parser* _parser_, librdf_uri* _feature_) int **librdf**___**parser**___**set**___**feature**(librdf_parser* _parser_, librdf_uri* _feature_, librdf_node* _value_) ### class serializer librdf_serializer* librdf_new_serializer(librdf_world* _world_, const char *_name_, const char *_mime_type_, librdf_uri *_type_uri_) librdf_serializer* librdf_new_serializer_from_factory(librdf_world* _world_, librdf_serializer_factory *_factory_) void librdf_free_serializer(librdf_serializer *_serializer_) int librdf_serializer_serialize_model(librdf_serializer* _serializer_, FILE* _handle_, librdf_uri* _base_uri_, librdf_model* _model_) int librdf_serializer_serialize_model_to_file(librdf_serializer* _serializer_, const char *_name_, librdf_uri* _base_uri_, librdf_model* _model_) void librdf_serializer_set_error(librdf_serializer* _serializer_, void *_user_data_, void (*_error_fn_)(void *user_data, const char *msg, ...)) void librdf_serializer_set_warning(librdf_serializer* _serializer_, void *_user_data_, void (*_warning_fn_)(void *user_data, const char *msg, ...)) librdf_node* librdf_serializer_get_feature(librdf_serializer* _serializer_, librdf_uri* _feature_) int librdf_serializer_set_feature(librdf_serializer* _serializer_, librdf_uri* _feature_, librdf_node* _value_)b int librdf_serializer_set_namespace(librdf_serializer* _serializer_, librdf_uri* _uri_, const char* _prefix_) ### class stream librdf_stream* **librdf**___**new**___**stream**(librdf_world* _world_, void* _context_, int (*_end_of_stream_)(void*), librdf_statement* (*_next_statement_)(void*), void (*_finished_)(void*)) librdf_stream* **librdf**___**new**___**stream**___**from**___**node**___**iterator**(librdf_iterator* _iterator_, librdf_statement* _statement_, librdf_statement_part _field_) void **librdf**___**free**___**stream**(librdf_stream* _stream_) int **librdf**___**stream**___**end**(librdf_stream* _stream_) int **librdf**___**stream**___**next**(librdf_stream* _stream_) librdf_statement* **librdf**___**stream**___**get**___**object**(librdf_stream* _stream_) void* **librdf**___**stream**___**get**___**context**(librdf_stream* _stream_) void **librdf**___**stream**___**set**___**map**(librdf_stream* _stream_, librdf_statement* (*_map_)(void* _context_, librdf_statement* _statement_), void* _map_context_) void **librdf**___**stream**___**print**(librdf_stream* _stream_, FILE* _fh_) ## EXAMPLES #include librdf_storage *storage; librdf_model* model; librdf_statement* statement; librdf_world* world world=librdf_new_world(); librdf_world_open(world); storage=librdf_new_storage(world, "hashes", "test", "hash-type='bdb',dir='.'"); model=librdf_new_model(world, storage, NULL); statement=librdf_new_statement_from_nodes(world, librdf_new_node_from_uri_string(world, ""), librdf_new_node_from_uri_string(world, ""), librdf_new_node_from_literal(world, "Dave Beckett", NULL, 0)); librdf_model_add_statement(model, statement); librdf_free_statement(statement); librdf_model_print(model, stdout); librdf_free_model(model); librdf_free_storage(storage); librdf_free_world(world); ## SEE ALSO [_libraptor_(3)](https://www.chedong.com/phpMan.php/man/libraptor/3/markdown), [_libxml_(4)](https://www.chedong.com/phpMan.php/man/libxml/4/markdown). ## HISTORY The **redland** RDF library was created by Dave Beckett in June 2000. ## AUTHOR Dave Beckett <>, 28-Jun-2012 redland 1.0.16 [redland(3)](https://www.chedong.com/phpMan.php/man/redland/3/markdown)