From 846553f8894264d64cdd1dfb08df56fe08189dac Mon Sep 17 00:00:00 2001 From: David Robillard Date: Sun, 3 Jun 2018 19:24:59 +0200 Subject: Add SerdStatement --- src/reader.c | 9 +++++++-- src/sink.c | 17 +++++++++++++---- src/statement.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++ src/statement.h | 34 ++++++++++++++++++++++++++++++++++ src/writer.c | 14 ++++++++------ 5 files changed, 115 insertions(+), 12 deletions(-) create mode 100644 src/statement.c create mode 100644 src/statement.h (limited to 'src') diff --git a/src/reader.c b/src/reader.c index f6c5e056..351428fc 100644 --- a/src/reader.c +++ b/src/reader.c @@ -18,6 +18,8 @@ #include "byte_source.h" #include "serd_internal.h" +#include "stack.h" +#include "statement.h" #include "system.h" #include "world.h" @@ -121,8 +123,11 @@ emit_statement(SerdReader* reader, ReadContext ctx, SerdNode* o) (subject and predicate) were already zeroed by subsequent pushes. */ serd_node_zero_pad(o); - const SerdStatus st = serd_sink_write( - reader->sink, *ctx.flags, ctx.subject, ctx.predicate, o, ctx.graph); + const SerdStatement statement = {{ctx.subject, ctx.predicate, o, ctx.graph}, + &reader->source.cur}; + + const SerdStatus st = + serd_sink_write_statement(reader->sink, *ctx.flags, &statement); *ctx.flags &= SERD_ANON_CONT | SERD_LIST_CONT; // Preserve only cont flags return st; diff --git a/src/sink.c b/src/sink.c index b62af23a..6f8cc734 100644 --- a/src/sink.c +++ b/src/sink.c @@ -16,6 +16,8 @@ #include "sink.h" +#include "statement.h" + #include "serd/serd.h" #include @@ -85,6 +87,15 @@ serd_sink_write_prefix(const SerdSink* sink, return sink->prefix ? sink->prefix(sink->handle, name, uri) : SERD_SUCCESS; } +SerdStatus +serd_sink_write_statement(const SerdSink* sink, + const SerdStatementFlags flags, + const SerdStatement* statement) +{ + return sink->statement ? sink->statement(sink->handle, flags, statement) + : SERD_SUCCESS; +} + SerdStatus serd_sink_write(const SerdSink* sink, const SerdStatementFlags flags, @@ -93,10 +104,8 @@ serd_sink_write(const SerdSink* sink, const SerdNode* object, const SerdNode* graph) { - return sink->statement - ? sink->statement( - sink->handle, flags, graph, subject, predicate, object) - : SERD_SUCCESS; + const SerdStatement statement = {{subject, predicate, object, graph}, NULL}; + return serd_sink_write_statement(sink, flags, &statement); } SerdStatus diff --git a/src/statement.c b/src/statement.c new file mode 100644 index 00000000..c9bac440 --- /dev/null +++ b/src/statement.c @@ -0,0 +1,53 @@ +/* + Copyright 2011-2020 David Robillard + + 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]; +} + +const SerdCursor* +serd_statement_cursor(const SerdStatement* statement) +{ + return statement->cursor; +} diff --git a/src/statement.h b/src/statement.h new file mode 100644 index 00000000..a5baaa6a --- /dev/null +++ b/src/statement.h @@ -0,0 +1,34 @@ +/* + Copyright 2011-2020 David Robillard + + 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; + SerdCursor* cursor; +}; + +#endif // SERD_STATEMENT_H diff --git a/src/writer.c b/src/writer.c index 8800282d..4160c09d 100644 --- a/src/writer.c +++ b/src/writer.c @@ -773,13 +773,15 @@ write_list_obj(SerdWriter* writer, } static SerdStatus -serd_writer_write_statement(SerdWriter* writer, - SerdStatementFlags flags, - const SerdNode* graph, - const SerdNode* subject, - const SerdNode* predicate, - const SerdNode* object) +serd_writer_write_statement(SerdWriter* writer, + SerdStatementFlags flags, + const SerdStatement* statement) { + const SerdNode* const subject = serd_statement_subject(statement); + const SerdNode* const predicate = serd_statement_predicate(statement); + const SerdNode* const object = serd_statement_object(statement); + const SerdNode* const graph = serd_statement_graph(statement); + if (!is_resource(subject) || !is_resource(predicate) || !object) { return SERD_ERR_BAD_ARG; } -- cgit v1.2.1