Detailed Description

A lightweight RDF model library.

Sord stores RDF (subject object predicate context) quads, where the context may be omitted (to represent triples in the default graph).

Typedefs
typedef struct SordWorldImpl	SordWorld
typedef struct SordModelImpl	SordModel
typedef struct SordInserterImpl	SordInserter
typedef struct SordIterImpl	SordIter
typedef struct SordNodeImpl	SordNode
typedef const SordNode *	SordQuad[4]

Enumerations
enum	SordQuadIndex { SORD_SUBJECT = 0U , SORD_PREDICATE = 1U , SORD_OBJECT = 2U , SORD_GRAPH = 3U }
enum	SordNodeType { SORD_URI = 1U , SORD_BLANK = 2U , SORD_LITERAL = 3U }
enum	SordIndexOption { SORD_SPO = 1U , SORD_SOP = 1U << 1U , SORD_OPS = 1U << 2U , SORD_OSP = 1U << 3U , SORD_PSO = 1U << 4U , SORD_POS = 1U << 5U }

World
SORD_API SordWorld *SERD_ALLOCATED	sord_world_new (void)
SORD_API void	sord_world_free (SordWorld *SERD_NULLABLE world)
SORD_API void	sord_world_set_error_sink (SordWorld SERD_NONNULL world, SerdErrorSink SERD_NULLABLE error_sink, void SERD_UNSPECIFIED handle)

Node
SORD_API SordNode *SERD_ALLOCATED	sord_new_uri (SordWorld SERD_NONNULL world, const uint8_t SERD_NONNULL uri)
SORD_API SordNode *SERD_ALLOCATED	sord_new_relative_uri (SordWorld SERD_NONNULL world, const uint8_t SERD_NONNULL uri, const uint8_t *SERD_NULLABLE base_uri)
SORD_API SordNode *SERD_ALLOCATED	sord_new_blank (SordWorld SERD_NONNULL world, const uint8_t SERD_NONNULL str)
SORD_API SordNode *SERD_ALLOCATED	sord_new_literal (SordWorld SERD_NONNULL world, SordNode SERD_NULLABLE datatype, const uint8_t SERD_NONNULL str, const char SERD_NULLABLE lang)
SORD_API SordNode *SERD_ALLOCATED	sord_node_copy (const SordNode *SERD_NULLABLE node)
SORD_API void	sord_node_free (SordWorld SERD_NONNULL world, SordNode SERD_NULLABLE node)
SORD_API SordNodeType	sord_node_get_type (const SordNode *SERD_NONNULL node)
SORD_API const uint8_t *SERD_NONNULL	sord_node_get_string (const SordNode *SERD_NONNULL node)
SORD_API const uint8_t *SERD_NONNULL	sord_node_get_string_counted (const SordNode SERD_NONNULL node, size_t SERD_NONNULL bytes)
SORD_API const uint8_t *SERD_NONNULL	sord_node_get_string_measured (const SordNode SERD_NONNULL node, size_t SERD_NONNULL bytes, size_t *SERD_NONNULL chars)
SORD_API const char *SERD_NULLABLE	sord_node_get_language (const SordNode *SERD_NONNULL node)
SORD_API SordNode *SERD_NULLABLE	sord_node_get_datatype (const SordNode *SERD_NONNULL node)
SORD_API SerdNodeFlags	sord_node_get_flags (const SordNode *SERD_NONNULL node)
SORD_API bool	sord_node_is_inline_object (const SordNode *SERD_NONNULL node)
SORD_API bool	sord_node_equals (const SordNode SERD_NULLABLE a, const SordNode SERD_NULLABLE b)
SORD_API const SerdNode *SERD_NONNULL	sord_node_to_serd_node (const SordNode *SERD_NULLABLE node)
SORD_API SordNode *SERD_ALLOCATED	sord_node_from_serd_node (SordWorld SERD_NONNULL world, SerdEnv SERD_NULLABLE env, const SerdNode SERD_NULLABLE node, const SerdNode SERD_NULLABLE datatype, const SerdNode *SERD_NULLABLE lang)

Model
SORD_API SordModel *SERD_ALLOCATED	sord_new (SordWorld *SERD_NONNULL world, unsigned indices, bool graphs)
SORD_API void	sord_free (SordModel *SERD_NULLABLE model)
SORD_API SordWorld *SERD_NONNULL	sord_get_world (SordModel *SERD_NONNULL model)
SORD_API size_t	sord_num_nodes (const SordWorld *SERD_NULLABLE world)
SORD_API size_t	sord_num_quads (const SordModel *SERD_NULLABLE model)
SORD_API SordIter *SERD_NULLABLE	sord_begin (const SordModel *SERD_NULLABLE model)
SORD_API SordIter *SERD_NULLABLE	sord_find (const SordModel *SERD_NONNULL model, const SordQuad SERD_NONNULL pat)
SORD_API SordIter *SERD_NULLABLE	sord_search (const SordModel SERD_NONNULL model, const SordNode SERD_NULLABLE s, const SordNode SERD_NULLABLE p, const SordNode SERD_NULLABLE o, const SordNode *SERD_NULLABLE g)
SORD_API SordNode *SERD_NULLABLE	sord_get (const SordModel SERD_NONNULL model, const SordNode SERD_NULLABLE s, const SordNode SERD_NULLABLE p, const SordNode SERD_NULLABLE o, const SordNode *SERD_NULLABLE g)
SORD_API bool	sord_ask (const SordModel SERD_NONNULL model, const SordNode SERD_NULLABLE s, const SordNode SERD_NULLABLE p, const SordNode SERD_NULLABLE o, const SordNode *SERD_NULLABLE g)
SORD_API uint64_t	sord_count (const SordModel SERD_NONNULL model, const SordNode SERD_NULLABLE s, const SordNode SERD_NULLABLE p, const SordNode SERD_NULLABLE o, const SordNode *SERD_NULLABLE g)
SORD_API bool	sord_contains (const SordModel *SERD_NONNULL model, const SordQuad SERD_NONNULL pat)
SORD_API bool	sord_add (SordModel *SERD_NONNULL model, const SordQuad SERD_NONNULL tup)
SORD_API void	sord_remove (SordModel *SERD_NONNULL model, const SordQuad SERD_NONNULL tup)
SORD_API SerdStatus	sord_erase (SordModel SERD_NONNULL model, SordIter SERD_NULLABLE iter)

Inserter
SORD_API SordInserter *SERD_ALLOCATED	sord_inserter_new (SordModel SERD_NONNULL model, SerdEnv SERD_NONNULL env)
SORD_API void	sord_inserter_free (SordInserter *SERD_NULLABLE inserter)
SORD_API SerdStatus	sord_inserter_set_base_uri (SordInserter SERD_NONNULL inserter, const SerdNode SERD_NULLABLE uri)
SORD_API SerdStatus	sord_inserter_set_prefix (SordInserter SERD_NONNULL inserter, const SerdNode SERD_NONNULL name, const SerdNode *SERD_NONNULL uri)
SORD_API SerdStatus	sord_inserter_write_statement (SordInserter SERD_NONNULL inserter, SerdStatementFlags flags, const SerdNode SERD_NULLABLE graph, const SerdNode SERD_NONNULL subject, const SerdNode SERD_NONNULL predicate, const SerdNode SERD_NONNULL object, const SerdNode SERD_NULLABLE object_datatype, const SerdNode *SERD_NULLABLE object_lang)

Iteration
SORD_API void	sord_iter_get (const SordIter *SERD_UNSPECIFIED iter, SordQuad SERD_NONNULL tup)
SORD_API const SordNode *SERD_UNSPECIFIED	sord_iter_get_node (const SordIter *SERD_UNSPECIFIED iter, SordQuadIndex index)
SORD_API const SordModel *SERD_UNSPECIFIED	sord_iter_get_model (SordIter *SERD_UNSPECIFIED iter)
SORD_API bool	sord_iter_next (SordIter *SERD_NULLABLE iter)
SORD_API bool	sord_iter_end (const SordIter *SERD_NULLABLE iter)
SORD_API void	sord_iter_free (SordIter *SERD_NULLABLE iter)

Utilities
SORD_API bool	sord_quad_match (const SordQuad SERD_NONNULL x, const SordQuad SERD_NONNULL y)

Serialisation
SORD_API SerdReader *SERD_ALLOCATED	sord_new_reader (SordModel SERD_NONNULL model, SerdEnv SERD_NONNULL env, SerdSyntax syntax, const SordNode *SERD_NULLABLE graph)
SORD_API bool	sord_write (SordModel SERD_NONNULL model, SerdWriter SERD_NONNULL writer, const SordNode *SERD_NULLABLE graph)
SORD_API bool	sord_write_iter (SordIter SERD_NULLABLE iter, SerdWriter SERD_NULLABLE writer)

Typedef Documentation

◆ SordWorld

typedef struct SordWorldImpl SordWorld

Sord World.

The World represents all library state, including interned strings.

◆ SordModel

typedef struct SordModelImpl SordModel

Sord Model.

A model is an indexed set of Quads (i.e. it can contain several RDF graphs). It may be searched using various patterns depending on which indices are enabled.

◆ SordInserter

typedef struct SordInserterImpl SordInserter

Model Inserter.

An inserter is used for writing statements to a model using the Serd sink interface. This makes it simple to write to a model directly using a SerdReader, or any other code that writes statements to a SerdStatementSink.

◆ SordIter

typedef struct SordIterImpl SordIter

Model Iterator.

◆ SordNode

typedef struct SordNodeImpl SordNode

RDF Node.

A Node is a component of a Quad. Nodes may be URIs, blank nodes, or (in the case of quad objects only) string literals. Literal nodes may have an associate language or datatype (but not both).

◆ SordQuad

typedef const SordNode* SordQuad[4]

Quad of nodes (a statement), or a quad pattern.

Nodes are ordered (S P O G). The ID of the default graph is 0.

Enumeration Type Documentation

◆ SordQuadIndex

enum SordQuadIndex

Index into a SordQuad.

Enumerator
SORD_SUBJECT	Subject.
SORD_PREDICATE	Predicate ("key").
SORD_OBJECT	Object ("value").
SORD_GRAPH	Graph ("context").

◆ SordNodeType

enum SordNodeType

Type of a node.

Enumerator
SORD_URI	URI.
SORD_BLANK	Blank node identifier.
SORD_LITERAL	Literal (string with optional lang or datatype).

◆ SordIndexOption

enum SordIndexOption

Indexing option.

Enumerator
SORD_SPO	Subject, Predicate, Object.
SORD_SOP	Subject, Object, Predicate.
SORD_OPS	Object, Predicate, Subject.
SORD_OSP	Object, Subject, Predicate.
SORD_PSO	Predicate, Subject, Object.
SORD_POS	Predicate, Object, Subject.

Function Documentation

◆ sord_world_new()

SORD_API SordWorld *SERD_ALLOCATED sord_world_new ( void )

Create a new Sord World.

It is safe to use multiple worlds in one process, though no data (e.g. nodes) can be shared between worlds, and this should be avoided if possible for performance reasons.

References sord_world_new().

Referenced by sord_world_new().

◆ sord_world_free()

SORD_API void sord_world_free ( SordWorld *SERD_NULLABLE world )

Free world.

References sord_world_free().

Referenced by sord_world_free().

◆ sord_world_set_error_sink()

SORD_API void sord_world_set_error_sink	(	SordWorld *SERD_NONNULL	world,
		SerdErrorSink SERD_NULLABLE	error_sink,
		void *SERD_UNSPECIFIED	handle )

Set a function to be called when errors occur.

The error_sink will be called with handle as its first argument. If no error function is set, errors are printed to stderr.

References sord_world_set_error_sink().

Referenced by sord_world_set_error_sink().

◆ sord_new_uri()

SORD_API SordNode *SERD_ALLOCATED sord_new_uri	(	SordWorld *SERD_NONNULL	world,
		const uint8_t *SERD_NONNULL	uri )

Get a URI node from a string.

Note this function measures str, which is a common bottleneck. Use sord_node_from_serd_node() instead if str is already measured.

References sord_new_uri().

Referenced by sord_new_uri().

◆ sord_new_relative_uri()

SORD_API SordNode *SERD_ALLOCATED sord_new_relative_uri	(	SordWorld *SERD_NONNULL	world,
		const uint8_t *SERD_NONNULL	uri,
		const uint8_t *SERD_NULLABLE	base_uri )

Get a URI node from a relative URI string.

References sord_new_relative_uri().

Referenced by sord_new_relative_uri().

◆ sord_new_blank()

SORD_API SordNode *SERD_ALLOCATED sord_new_blank	(	SordWorld *SERD_NONNULL	world,
		const uint8_t *SERD_NONNULL	str )

Get a blank node from a string.

Note this function measures str, which is a common bottleneck. Use sord_node_from_serd_node() instead if str is already measured.

References sord_new_blank().

Referenced by sord_new_blank().

◆ sord_new_literal()

SORD_API SordNode *SERD_ALLOCATED sord_new_literal	(	SordWorld *SERD_NONNULL	world,
		SordNode *SERD_NULLABLE	datatype,
		const uint8_t *SERD_NONNULL	str,
		const char *SERD_NULLABLE	lang )

Get a literal node from a string.

Note this function measures str, which is a common bottleneck. Use sord_node_from_serd_node() instead if str is already measured.

References sord_new_literal().

Referenced by sord_new_literal().

◆ sord_node_copy()

SORD_API SordNode *SERD_ALLOCATED sord_node_copy ( const SordNode *SERD_NULLABLE node )

Copy a node (obtain a reference).

Node that since nodes are interned and reference counted, this does not actually create a deep copy of node.

References sord_node_copy().

Referenced by sord_node_copy().

◆ sord_node_free()

SORD_API void sord_node_free	(	SordWorld *SERD_NONNULL	world,
		SordNode *SERD_NULLABLE	node )

Free a node (drop a reference).

References sord_node_free().

Referenced by sord_node_free().

◆ sord_node_get_type()

SORD_API SordNodeType sord_node_get_type ( const SordNode *SERD_NONNULL node )

Return the type of a node (SORD_URI, SORD_BLANK, or SORD_LITERAL).

References sord_node_get_type().

Referenced by sord_node_get_type().

◆ sord_node_get_string()

SORD_API const uint8_t *SERD_NONNULL sord_node_get_string ( const SordNode *SERD_NONNULL node )

Return the string value of a node.

References sord_node_get_string().

Referenced by sord_node_get_string().

◆ sord_node_get_string_counted()

SORD_API const uint8_t *SERD_NONNULL sord_node_get_string_counted	(	const SordNode *SERD_NONNULL	node,
		size_t *SERD_NONNULL	bytes )

Return the string value of a node, and set bytes to its length in bytes.

References sord_node_get_string_counted().

Referenced by sord_node_get_string_counted().

◆ sord_node_get_string_measured()

SORD_API const uint8_t *SERD_NONNULL sord_node_get_string_measured	(	const SordNode *SERD_NONNULL	node,
		size_t *SERD_NONNULL	bytes,
		size_t *SERD_NONNULL	chars )

Return the string value of a node, and set bytes to its length in bytes, and count to its length in characters.

References sord_node_get_string_measured().

Referenced by sord_node_get_string_measured().

◆ sord_node_get_language()

SORD_API const char *SERD_NULLABLE sord_node_get_language ( const SordNode *SERD_NONNULL node )

Return the language of a literal node (or NULL).

References sord_node_get_language().

Referenced by sord_node_get_language().

◆ sord_node_get_datatype()

SORD_API SordNode *SERD_NULLABLE sord_node_get_datatype ( const SordNode *SERD_NONNULL node )

Return the datatype URI of a literal node (or NULL).

References sord_node_get_datatype().

Referenced by sord_node_get_datatype().

◆ sord_node_get_flags()

SORD_API SerdNodeFlags sord_node_get_flags ( const SordNode *SERD_NONNULL node )

Return the flags (string attributes) of a node.

References sord_node_get_flags().

Referenced by sord_node_get_flags().

◆ sord_node_is_inline_object()

SORD_API bool sord_node_is_inline_object ( const SordNode *SERD_NONNULL node )

Return true iff node can be serialised as an inline object.

More specifically, this returns true iff the node is the object field of exactly one statement, and therefore can be inlined since it needn't be referred to by name.

References sord_node_is_inline_object().

Referenced by sord_node_is_inline_object().

◆ sord_node_equals()

SORD_API bool sord_node_equals	(	const SordNode *SERD_NULLABLE	a,
		const SordNode *SERD_NULLABLE	b )

Return true iff a is equal to b.

Note this is much faster than comparing the node's strings.

References sord_node_equals().

Referenced by sord_node_equals().

◆ sord_node_to_serd_node()

SORD_API const SerdNode *SERD_NONNULL sord_node_to_serd_node ( const SordNode *SERD_NULLABLE node )

Return a SordNode as a SerdNode.

The returned node is shared and must not be freed or modified.

References sord_node_to_serd_node().

Referenced by sord_node_to_serd_node().

◆ sord_node_from_serd_node()

SORD_API SordNode *SERD_ALLOCATED sord_node_from_serd_node	(	SordWorld *SERD_NONNULL	world,
		SerdEnv *SERD_NULLABLE	env,
		const SerdNode *SERD_NULLABLE	node,
		const SerdNode *SERD_NULLABLE	datatype,
		const SerdNode *SERD_NULLABLE	lang )

Create a new SordNode from a SerdNode.

The returned node must be freed using sord_node_free().

References sord_node_from_serd_node().

Referenced by sord_node_from_serd_node().

◆ sord_new()

SORD_API SordModel *SERD_ALLOCATED sord_new	(	SordWorld *SERD_NONNULL	world,
		unsigned	indices,
		bool	graphs )

Create a new model.

Parameters

world	The world in which to make this model.
indices	SordIndexOption flags (e.g. SORD_SPO\|SORD_OPS). Be sure to enable an index where the most significant node(s) are not variables in your queries (e.g. to make (? P O) queries, enable either SORD_OPS or SORD_POS).
graphs	If true, store (and index) graph contexts.

References sord_new().

Referenced by sord_new().

◆ sord_free()

SORD_API void sord_free ( SordModel *SERD_NULLABLE model )

Close and free model.

References sord_free().

Referenced by sord_free().

◆ sord_get_world()

SORD_API SordWorld *SERD_NONNULL sord_get_world ( SordModel *SERD_NONNULL model )

Get the world associated with model.

References sord_get_world().

Referenced by sord_get_world().

◆ sord_num_nodes()

SORD_API size_t sord_num_nodes ( const SordWorld *SERD_NULLABLE world )

Return the number of nodes stored in world.

Nodes are included in this count iff they are a part of a quad in world.

References sord_num_nodes().

Referenced by sord_num_nodes().

◆ sord_num_quads()

SORD_API size_t sord_num_quads ( const SordModel *SERD_NULLABLE model )

Return the number of quads stored in model.

References sord_num_quads().

Referenced by sord_num_quads().

◆ sord_begin()

SORD_API SordIter *SERD_NULLABLE sord_begin ( const SordModel *SERD_NULLABLE model )

Return an iterator to the start of model.

References sord_begin().

Referenced by sord_begin().

◆ sord_find()

SORD_API SordIter *SERD_NULLABLE sord_find	(	const SordModel *SERD_NONNULL	model,
		const SordQuad SERD_NONNULL	pat )

Search for statements by a quad pattern.

Returns: an iterator to the first match, or NULL if no matches found.

References sord_find().

Referenced by sord_find().

◆ sord_search()

SORD_API SordIter *SERD_NULLABLE sord_search	(	const SordModel *SERD_NONNULL	model,
		const SordNode *SERD_NULLABLE	s,
		const SordNode *SERD_NULLABLE	p,
		const SordNode *SERD_NULLABLE	o,
		const SordNode *SERD_NULLABLE	g )

Search for statements by nodes.

Returns: an iterator to the first match, or NULL if no matches found.

References sord_search().

Referenced by sord_search().

◆ sord_get()

SORD_API SordNode *SERD_NULLABLE sord_get	(	const SordModel *SERD_NONNULL	model,
		const SordNode *SERD_NULLABLE	s,
		const SordNode *SERD_NULLABLE	p,
		const SordNode *SERD_NULLABLE	o,
		const SordNode *SERD_NULLABLE	g )

Search for a single node that matches a pattern.

Exactly one of s, p, o must be NULL. This function is mainly useful for predicates that only have one value. The returned node must be freed using sord_node_free().

Returns: the first matching node, or NULL if no matches are found.

References sord_get().

Referenced by sord_get().

◆ sord_ask()

SORD_API bool sord_ask	(	const SordModel *SERD_NONNULL	model,
		const SordNode *SERD_NULLABLE	s,
		const SordNode *SERD_NULLABLE	p,
		const SordNode *SERD_NULLABLE	o,
		const SordNode *SERD_NULLABLE	g )

Return true iff a statement exists.

References sord_ask().

Referenced by sord_ask().

◆ sord_count()

SORD_API uint64_t sord_count	(	const SordModel *SERD_NONNULL	model,
		const SordNode *SERD_NULLABLE	s,
		const SordNode *SERD_NULLABLE	p,
		const SordNode *SERD_NULLABLE	o,
		const SordNode *SERD_NULLABLE	g )

Return the number of matching statements.

References sord_count().

Referenced by sord_count().

◆ sord_contains()

SORD_API bool sord_contains	(	const SordModel *SERD_NONNULL	model,
		const SordQuad SERD_NONNULL	pat )

Check if model contains a triple pattern.

Returns: true if model contains a match for pat, otherwise false.

References sord_contains().

Referenced by sord_contains().

◆ sord_add()

SORD_API bool sord_add	(	SordModel *SERD_NONNULL	model,
		const SordQuad SERD_NONNULL	tup )

Add a quad to a model.

Calling this function invalidates all iterators on model.

Returns: true on success, false, on error.

References sord_add().

Referenced by sord_add().

◆ sord_remove()

SORD_API void sord_remove	(	SordModel *SERD_NONNULL	model,
		const SordQuad SERD_NONNULL	tup )

Remove a quad from a model.

Calling this function invalidates all iterators on model. To remove quads while iterating, use sord_erase() instead.

References sord_remove().

Referenced by sord_remove().

◆ sord_erase()

SORD_API SerdStatus sord_erase	(	SordModel *SERD_NONNULL	model,
		SordIter *SERD_NULLABLE	iter )

Remove a quad from a model via an iterator.

Calling this function invalidates all iterators on model except iter.

Parameters

model	The model which iter points to.
iter	Iterator to the element to erase, which is incremented to the next value on return.

References sord_erase().

Referenced by sord_erase().

◆ sord_inserter_new()

SORD_API SordInserter *SERD_ALLOCATED sord_inserter_new	(	SordModel *SERD_NONNULL	model,
		SerdEnv *SERD_NONNULL	env )

Create an inserter for writing statements to a model.

References sord_inserter_new().

Referenced by sord_inserter_new().

◆ sord_inserter_free()

SORD_API void sord_inserter_free ( SordInserter *SERD_NULLABLE inserter )

Free an inserter.

References sord_inserter_free().

Referenced by sord_inserter_free().

◆ sord_inserter_set_base_uri()

SORD_API SerdStatus sord_inserter_set_base_uri	(	SordInserter *SERD_NONNULL	inserter,
		const SerdNode *SERD_NULLABLE	uri )

Set the current base URI for writing to the model.

Note this function can be safely casted to SerdBaseSink.

References sord_inserter_set_base_uri().

Referenced by sord_inserter_set_base_uri().

◆ sord_inserter_set_prefix()

SORD_API SerdStatus sord_inserter_set_prefix	(	SordInserter *SERD_NONNULL	inserter,
		const SerdNode *SERD_NONNULL	name,
		const SerdNode *SERD_NONNULL	uri )

Set a namespace prefix for writing to the model.

Note this function can be safely casted to SerdPrefixSink.

References sord_inserter_set_prefix().

Referenced by sord_inserter_set_prefix().

◆ sord_inserter_write_statement()

SORD_API SerdStatus sord_inserter_write_statement	(	SordInserter *SERD_NONNULL	inserter,
		SerdStatementFlags	flags,
		const SerdNode *SERD_NULLABLE	graph,
		const SerdNode *SERD_NONNULL	subject,
		const SerdNode *SERD_NONNULL	predicate,
		const SerdNode *SERD_NONNULL	object,
		const SerdNode *SERD_NULLABLE	object_datatype,
		const SerdNode *SERD_NULLABLE	object_lang )

Write a statement to the model.

Note this function can be safely casted to SerdStatementSink.

References sord_inserter_write_statement().

Referenced by sord_inserter_write_statement().

◆ sord_iter_get()

SORD_API void sord_iter_get	(	const SordIter *SERD_UNSPECIFIED	iter,
		SordQuad SERD_NONNULL	tup )

Set quad to the quad pointed to by iter.

References sord_iter_get().

Referenced by sord_iter_get().

◆ sord_iter_get_node()

SORD_API const SordNode *SERD_UNSPECIFIED sord_iter_get_node	(	const SordIter *SERD_UNSPECIFIED	iter,
		SordQuadIndex	index )

Return a field of the quad pointed to by iter.

Returns NULL if iter is NULL or is at the end.

References sord_iter_get_node().

Referenced by sord_iter_get_node().

◆ sord_iter_get_model()

SORD_API const SordModel *SERD_UNSPECIFIED sord_iter_get_model ( SordIter *SERD_UNSPECIFIED iter )

Return the store pointed to by iter.

References sord_iter_get_model().

Referenced by sord_iter_get_model().

◆ sord_iter_next()

SORD_API bool sord_iter_next ( SordIter *SERD_NULLABLE iter )

Increment iter to point to the next statement.

References sord_iter_next().

Referenced by sord_iter_next().

◆ sord_iter_end()

SORD_API bool sord_iter_end ( const SordIter *SERD_NULLABLE iter )

Return true iff iter is at the end of its range.

References sord_iter_end().

Referenced by sord_iter_end().

◆ sord_iter_free()

SORD_API void sord_iter_free ( SordIter *SERD_NULLABLE iter )

Free iter.

References sord_iter_free().

Referenced by sord_iter_free().

◆ sord_quad_match()

SORD_API bool sord_quad_match	(	const SordQuad SERD_NONNULL	x,
		const SordQuad SERD_NONNULL	y )

Match two quads (using ID comparison only).

This function is a straightforward and fast equivalence match with wildcard support (ID 0 is a wildcard). It does not actually read node data.

Returns: true iff x and y match.

References sord_quad_match().

Referenced by sord_quad_match().

◆ sord_new_reader()

SORD_API SerdReader *SERD_ALLOCATED sord_new_reader	(	SordModel *SERD_NONNULL	model,
		SerdEnv *SERD_NONNULL	env,
		SerdSyntax	syntax,
		const SordNode *SERD_NULLABLE	graph )

Return a reader that will read into model.

References sord_new_reader().

Referenced by sord_new_reader().

◆ sord_write()

SORD_API bool sord_write	(	SordModel *SERD_NONNULL	model,
		SerdWriter *SERD_NONNULL	writer,
		const SordNode *SERD_NULLABLE	graph )

Write a model to a writer.

References sord_write().

Referenced by sord_write().

◆ sord_write_iter()

SORD_API bool sord_write_iter	(	SordIter *SERD_NULLABLE	iter,
		SerdWriter *SERD_NULLABLE	writer )

Write a range to a writer.

This increments iter to its end, then frees it.

References sord_write_iter().

Referenced by sord_write_iter().

Detailed Description

Typedefs

Enumerations

World

Node

Model

Inserter

Iteration

Utilities

Serialisation

Typedef Documentation

◆ SordWorld

◆ SordModel

◆ SordInserter

◆ SordIter

◆ SordNode

◆ SordQuad

Enumeration Type Documentation

◆ SordQuadIndex

◆ SordNodeType

◆ SordIndexOption

Function Documentation

◆ sord_world_new()

◆ sord_world_free()

◆ sord_world_set_error_sink()

◆ sord_new_uri()

◆ sord_new_relative_uri()

◆ sord_new_blank()

◆ sord_new_literal()

◆ sord_node_copy()

◆ sord_node_free()

◆ sord_node_get_type()

◆ sord_node_get_string()

◆ sord_node_get_string_counted()

◆ sord_node_get_string_measured()

◆ sord_node_get_language()

◆ sord_node_get_datatype()

◆ sord_node_get_flags()

◆ sord_node_is_inline_object()

◆ sord_node_equals()

◆ sord_node_to_serd_node()

◆ sord_node_from_serd_node()

◆ sord_new()

◆ sord_free()

◆ sord_get_world()

◆ sord_num_nodes()

◆ sord_num_quads()

◆ sord_begin()

◆ sord_find()

◆ sord_search()

◆ sord_get()

◆ sord_ask()

◆ sord_count()

◆ sord_contains()

◆ sord_add()

◆ sord_remove()

◆ sord_erase()

◆ sord_inserter_new()

◆ sord_inserter_free()

◆ sord_inserter_set_base_uri()

◆ sord_inserter_set_prefix()

◆ sord_inserter_write_statement()

◆ sord_iter_get()

◆ sord_iter_get_node()

◆ sord_iter_get_model()

◆ sord_iter_next()

◆ sord_iter_end()

◆ sord_iter_free()

◆ sord_quad_match()

◆ sord_new_reader()

◆ sord_write()

◆ sord_write_iter()