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authorDavid Robillard <d@drobilla.net>2020-11-13 13:27:55 +0100
committerDavid Robillard <d@drobilla.net>2020-11-13 13:33:41 +0100
commit9256bf1de45a39fb521f15361965a684af912975 (patch)
tree93a29c6420d815b87e821402bcecf2ada71e898e /include/serd/serd.h
parent65d6229274ac4e0e076089a66962442ff455d877 (diff)
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Improve documentation
Diffstat (limited to 'include/serd/serd.h')
-rw-r--r--include/serd/serd.h55
1 files changed, 36 insertions, 19 deletions
diff --git a/include/serd/serd.h b/include/serd/serd.h
index bba00710..c7da9fc7 100644
--- a/include/serd/serd.h
+++ b/include/serd/serd.h
@@ -116,13 +116,15 @@ typedef enum {
typedef uint32_t SerdStatementFlags;
/**
- Type of a syntactic RDF node.
+ Type of a node.
- This is more precise than the type of an abstract RDF node. An abstract
- node is either a resource, literal, or blank. In syntax there are two ways
- to refer to a resource (by URI or CURIE) and two ways to refer to a blank
- (by ID or anonymously). Anonymous (inline) blank nodes are expressed using
- SerdStatementFlags rather than this type.
+ An RDF node, in the abstract sense, can be either a resource, literal, or a
+ blank. This type is more precise, because syntactically there are two ways
+ to refer to a resource (by URI or CURIE).
+
+ There are also two ways to refer to a blank node in syntax (by ID or
+ anonymously), but this is handled by statement flags rather than distinct
+ node types.
*/
typedef enum {
/**
@@ -220,10 +222,9 @@ typedef struct {
/**
Syntax style options.
- The style of the writer output can be controlled by ORing together
- values from this enumeration. Note that some options are only supported
- for some syntaxes (e.g. NTriples does not support abbreviation and is
- always ASCII).
+ These flags allow more precise control of writer output style. Note that
+ some options are only supported for some syntaxes, for example, NTriples
+ does not support abbreviation and is always ASCII.
*/
typedef enum {
SERD_STYLE_ABBREVIATED = 1u << 0u, ///< Abbreviate triples when possible.
@@ -655,7 +656,13 @@ SerdStatus
serd_env_set_base_uri(SerdEnv* SERD_NONNULL env,
const SerdNode* SERD_NULLABLE uri);
-/// Set a namespace prefix
+/**
+ Set a namespace prefix
+
+ A namespace prefix is used to expand CURIE nodes, for example, with the
+ prefix "xsd" set to "http://www.w3.org/2001/XMLSchema#", "xsd:decimal" will
+ expand to "http://www.w3.org/2001/XMLSchema#decimal".
+*/
SERD_API
SerdStatus
serd_env_set_prefix(SerdEnv* SERD_NONNULL env,
@@ -755,11 +762,11 @@ serd_reader_get_handle(const SerdReader* SERD_NONNULL reader);
/**
Set a prefix to be added to all blank node identifiers.
- This is useful when multiple files are to be parsed into the same output
- (e.g. a store, or other files). Since Serd preserves blank node IDs, this
- could cause conflicts where two non-equivalent blank nodes are merged,
- resulting in corrupt data. By setting a unique blank node prefix for each
- parsed file, this can be avoided, while preserving blank node names.
+ This is useful when multiple files are to be parsed into the same output (a
+ model or a file). Since Serd preserves blank node IDs, this could cause
+ conflicts where two non-equivalent blank nodes are merged, resulting in
+ corrupt data. By setting a unique blank node prefix for each parsed file,
+ this can be avoided, while preserving blank node names.
*/
SERD_API
void
@@ -933,14 +940,19 @@ serd_writer_set_error_sink(SerdWriter* SERD_NONNULL writer,
SerdErrorSink SERD_NONNULL error_sink,
void* SERD_NULLABLE error_handle);
-/// Set a prefix to be removed from matching blank node identifiers
+/**
+ Set a prefix to be removed from matching blank node identifiers
+
+ This is the counterpart to serd_reader_add_blank_prefix() which can be used
+ to "undo" added prefixes.
+*/
SERD_API
void
serd_writer_chop_blank_prefix(SerdWriter* SERD_NONNULL writer,
const uint8_t* SERD_NULLABLE prefix);
/**
- Set the current output base URI (and emit directive if applicable).
+ Set the current output base URI, and emit a directive if applicable.
Note this function can be safely casted to SerdBaseSink.
*/
@@ -1001,7 +1013,12 @@ SerdStatus
serd_writer_end_anon(SerdWriter* SERD_NONNULL writer,
const SerdNode* SERD_NULLABLE node);
-/// Finish a write
+/**
+ Finish a write
+
+ This flushes any pending output, for example terminating punctuation, so
+ that the output is a complete document.
+*/
SERD_API
SerdStatus
serd_writer_finish(SerdWriter* SERD_NONNULL writer);