diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/node_syntax.c | 122 | ||||
| -rw-r--r-- | src/writer.c | 8 | ||||
| -rw-r--r-- | src/writer.h | 20 |
3 files changed, 150 insertions, 0 deletions
diff --git a/src/node_syntax.c b/src/node_syntax.c new file mode 100644 index 00000000..626648f6 --- /dev/null +++ b/src/node_syntax.c @@ -0,0 +1,122 @@ +/* + Copyright 2011-2020 David Robillard <d@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 "writer.h" + +#include "serd/serd.h" + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +static SerdStatus +on_node_string_event(void* const handle, const SerdEvent* const event) +{ + if (event->type == SERD_STATEMENT) { + *(SerdNode**)handle = + serd_node_copy(serd_statement_object(event->statement.statement)); + } + + return SERD_SUCCESS; +} + +static SerdNode* +serd_node_from_syntax_in(const char* const str, + const SerdSyntax syntax, + SerdEnv* const env) +{ + static const char* const prelude = + "_:s <http://www.w3.org/2000/01/rdf-schema#object>"; + + const size_t str_len = strlen(str); + const size_t doc_len = strlen(prelude) + str_len + 4; + char* const doc = (char*)calloc(doc_len + 1, 1); + + snprintf(doc, doc_len + 1, "%s %s .", prelude, str); + + SerdNode* object = NULL; + SerdWorld* const world = serd_world_new(); + SerdSink* const sink = serd_sink_new(&object, on_node_string_event, NULL); + + SerdByteSource* const source = serd_byte_source_new_string(doc, NULL); + SerdReader* const reader = serd_reader_new( + world, syntax, SERD_READ_EXACT_BLANKS, env, sink, 1024 + doc_len); + + serd_reader_start(reader, source); + serd_reader_read_document(reader); + serd_reader_finish(reader); + serd_reader_free(reader); + serd_byte_source_free(source); + serd_sink_free(sink); + serd_world_free(world); + free(doc); + + return object; +} + +SerdNode* +serd_node_from_syntax(const char* const str, + const SerdSyntax syntax, + SerdEnv* const env) +{ + if (env) { + return serd_node_from_syntax_in(str, syntax, env); + } + + SerdEnv* const temp_env = serd_env_new(SERD_EMPTY_STRING()); + SerdNode* const node = serd_node_from_syntax_in(str, syntax, temp_env); + + serd_env_free(temp_env); + return node; +} + +static char* +serd_node_to_syntax_in(const SerdNode* const node, + const SerdSyntax syntax, + const SerdEnv* const env) +{ + SerdWorld* const world = serd_world_new(); + SerdBuffer buffer = {NULL, 0}; + SerdByteSink* const out = serd_byte_sink_new_buffer(&buffer); + SerdWriter* const writer = serd_writer_new(world, syntax, 0, env, out); + + char* result = NULL; + if (!serd_writer_write_node(writer, node) && !serd_writer_finish(writer)) { + result = serd_buffer_sink_finish(&buffer); + } + + serd_writer_free(writer); + serd_byte_sink_free(out); + serd_world_free(world); + + return result; +} + +char* +serd_node_to_syntax(const SerdNode* const node, + const SerdSyntax syntax, + const SerdEnv* const env) +{ + if (env) { + return serd_node_to_syntax_in(node, syntax, env); + } + + SerdEnv* const temp_env = serd_env_new(SERD_EMPTY_STRING()); + char* const string = serd_node_to_syntax_in(node, syntax, temp_env); + + serd_env_free(temp_env); + return string; +} diff --git a/src/writer.c b/src/writer.c index bfce4f9e..c6a91d78 100644 --- a/src/writer.c +++ b/src/writer.c @@ -14,6 +14,8 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include "writer.h" + #include "byte_sink.h" #include "env.h" #include "node.h" @@ -1259,6 +1261,12 @@ serd_writer_on_event(SerdWriter* writer, const SerdEvent* event) } SerdStatus +serd_writer_write_node(SerdWriter* writer, const SerdNode* node) +{ + return write_node(writer, node, SERD_OBJECT, 0); +} + +SerdStatus serd_writer_finish(SerdWriter* writer) { SerdStatus st = SERD_SUCCESS; diff --git a/src/writer.h b/src/writer.h new file mode 100644 index 00000000..c80fe49c --- /dev/null +++ b/src/writer.h @@ -0,0 +1,20 @@ +/* + Copyright 2019-2020 David Robillard <d@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 "serd/serd.h" + +SerdStatus +serd_writer_write_node(SerdWriter* writer, const SerdNode* node); |