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author | David Robillard <d@drobilla.net> | 2018-06-03 19:24:59 +0200 |
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committer | David Robillard <d@drobilla.net> | 2020-10-27 13:13:58 +0100 |
commit | cb08398a66710ce702020ff22da15b5b57e9f105 (patch) | |
tree | ccd4a1cd8aeaef0094f5d615b8879d2f8a9a0fab | |
parent | a16281bb03b2c524f0dfbc0381a3ad641d4a4dbb (diff) | |
download | serd-cb08398a66710ce702020ff22da15b5b57e9f105.tar.gz serd-cb08398a66710ce702020ff22da15b5b57e9f105.tar.bz2 serd-cb08398a66710ce702020ff22da15b5b57e9f105.zip |
Add SerdStatement
-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 ba143d8d..19b865d5 100644 --- a/serd/serd.h +++ b/serd/serd.h @@ -65,6 +65,13 @@ 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 @@ -1160,6 +1167,47 @@ serd_writer_finish(SerdWriter* writer); /** @} + @name Statement + @{ +*/ + +/** + Return the given node in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_node(const SerdStatement* statement, SerdField field); + +/** + Return the subject in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_subject(const SerdStatement* statement); + +/** + Return the predicate in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_predicate(const SerdStatement* statement); + +/** + Return the object in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_object(const SerdStatement* statement); + +/** + Return the graph in `statement`. +*/ +SERD_API +const SerdNode* +serd_statement_graph(const SerdStatement* statement); + +/** + @} @} */ diff --git a/src/statement.c b/src/statement.c new file mode 100644 index 00000000..8d9c3f72 --- /dev/null +++ b/src/statement.c @@ -0,0 +1,47 @@ +/* + Copyright 2011-2020 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_node(const SerdStatement* statement, SerdField field) +{ + return statement->nodes[field]; +} + +const SerdNode* +serd_statement_subject(const SerdStatement* statement) +{ + return statement->nodes[SERD_SUBJECT]; +} + +const SerdNode* +serd_statement_predicate(const SerdStatement* statement) +{ + return statement->nodes[SERD_PREDICATE]; +} + +const SerdNode* +serd_statement_object(const SerdStatement* statement) +{ + return statement->nodes[SERD_OBJECT]; +} + +const SerdNode* +serd_statement_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..19b4a91f --- /dev/null +++ b/src/statement.h @@ -0,0 +1,33 @@ +/* + Copyright 2011-2020 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 @@ -149,6 +149,7 @@ 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', |