diff options
| -rw-r--r-- | serd/serd.h | 48 | ||||
| -rw-r--r-- | src/statement.c | 47 | ||||
| -rw-r--r-- | src/statement.h | 33 | ||||
| -rw-r--r-- | wscript | 1 |
4 files changed, 129 insertions, 0 deletions
diff --git a/serd/serd.h b/serd/serd.h index 26630614..d108e120 100644 --- a/serd/serd.h +++ b/serd/serd.h @@ -62,6 +62,13 @@ extern "C" { typedef struct SerdWorldImpl SerdWorld; /** + Statement. + + A subject, predicate, and object, with optional graph context. +*/ +typedef struct SerdStatementImpl SerdStatement; + +/** Environment. Represents the state required to resolve a CURIE or relative URI, e.g. the @@ -1150,6 +1157,47 @@ serd_writer_finish(SerdWriter* writer); /** @} + @name Statement + @{ +*/ + +/** + Return the given node in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_get_node(const SerdStatement* statement, SerdField field); + +/** + Return the subject in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_get_subject(const SerdStatement* statement); + +/** + Return the predicate in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_get_predicate(const SerdStatement* statement); + +/** + Return the object in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_get_object(const SerdStatement* statement); + +/** + Return the graph in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_get_graph(const SerdStatement* statement); + +/** + @} @} */ diff --git a/src/statement.c b/src/statement.c new file mode 100644 index 00000000..5e2802eb --- /dev/null +++ b/src/statement.c @@ -0,0 +1,47 @@ +/* + Copyright 2011-2018 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#include "statement.h" + +const SerdNode* +serd_statement_get_node(const SerdStatement* statement, SerdField field) +{ + return statement->nodes[field]; +} + +const SerdNode* +serd_statement_get_subject(const SerdStatement* statement) +{ + return statement->nodes[SERD_SUBJECT]; +} + +const SerdNode* +serd_statement_get_predicate(const SerdStatement* statement) +{ + return statement->nodes[SERD_PREDICATE]; +} + +const SerdNode* +serd_statement_get_object(const SerdStatement* statement) +{ + return statement->nodes[SERD_OBJECT]; +} + +const SerdNode* +serd_statement_get_graph(const SerdStatement* statement) +{ + return statement->nodes[SERD_GRAPH]; +} diff --git a/src/statement.h b/src/statement.h new file mode 100644 index 00000000..7b5d752d --- /dev/null +++ b/src/statement.h @@ -0,0 +1,33 @@ +/* + Copyright 2011-2018 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#ifndef SERD_STATEMENT_H +#define SERD_STATEMENT_H + +#include "serd/serd.h" + +/** + Quad of nodes (a statement), or a quad pattern. + + Nodes are ordered (S P O G). The ID of the default graph is 0. +*/ +typedef const SerdNode* SerdQuad[4]; + +struct SerdStatementImpl { + SerdQuad nodes; +}; + +#endif // SERD_STATEMENT_H @@ -80,6 +80,7 @@ lib_source = ['src/base64.c', 'src/n3.c', 'src/node.c', 'src/reader.c', + 'src/statement.c', 'src/string.c', 'src/syntax.c', 'src/system.c', |