diff options
Diffstat (limited to 'src/syntax.c')
| -rw-r--r-- | src/syntax.c | 179 |
1 files changed, 16 insertions, 163 deletions
diff --git a/src/syntax.c b/src/syntax.c index 58ae1e4..8fd9644 100644 --- a/src/syntax.c +++ b/src/syntax.c @@ -32,16 +32,6 @@ typedef struct { SordModel* sord; } ReadState; -static uint8_t* -copy_string(const uint8_t* str, size_t* n_bytes) -{ - const size_t len = strlen((const char*)str); - uint8_t* const ret = malloc(len + 1); - memcpy(ret, str, len + 1); - *n_bytes = len + 1; - return ret; -} - static SerdStatus event_base(void* handle, const SerdNode* uri_node) @@ -102,31 +92,6 @@ event_statement(void* handle, return SERD_SUCCESS; } -static const uint8_t* -sord_file_uri_to_path(const uint8_t* uri) -{ - const uint8_t* filename = NULL; - if (serd_uri_string_has_scheme(uri)) { - // Absolute URI, ensure it a file and chop scheme - if (strncmp((const char*)uri, "file:", 5)) { - fprintf(stderr, "Unsupported URI scheme `%s'\n", uri); - return NULL; -#ifdef __WIN32__ - } else if (!strncmp((const char*)uri, "file:///", 8)) { - filename = uri + 8; -#else - } else if (!strncmp((const char*)uri, "file://", 7)) { - filename = uri + 7; -#endif - } else { - filename = uri + 5; - } - } else { - filename = uri; - } - return filename; -} - SORD_API SerdReader* sord_new_reader(SordModel* model, @@ -147,87 +112,9 @@ sord_new_reader(SordModel* model, return reader; } -static SerdWriter* -make_writer(SerdEnv* env, - SerdSyntax syntax, - const uint8_t* base_uri_str_in, - SerdSink sink, - void* stream) -{ - size_t base_uri_n_bytes = 0; - uint8_t* base_uri_str = copy_string(base_uri_str_in, &base_uri_n_bytes); - SerdURI base_uri; - if (serd_uri_parse(base_uri_str, &base_uri)) { - fprintf(stderr, "Invalid base URI <%s>\n", base_uri_str); - } - - SerdWriter* writer = serd_writer_new( - syntax, - SERD_STYLE_ABBREVIATED|SERD_STYLE_CURIED, - env, - &base_uri, - sink, - stream); - - serd_env_foreach(env, - (SerdPrefixSink)serd_writer_set_prefix, - writer); - - return writer; -} - -static size_t -file_sink(const void* buf, size_t len, void* stream) -{ - FILE* file = (FILE*)stream; - return fwrite(buf, 1, len, file); -} - -static bool -sord_write_file_handle(SordModel* model, - SerdEnv* env, - SerdSyntax syntax, - FILE* fd, - const uint8_t* base_uri_str_in, - SordNode* graph, - const uint8_t* blank_prefix) -{ - SerdWriter* writer = make_writer(env, syntax, base_uri_str_in, - file_sink, fd); - sord_write_writer(model, writer, graph); - serd_writer_free(writer); - return true; -} - -SORD_API -bool -sord_write_file(SordModel* model, - SerdEnv* env, - SerdSyntax syntax, - const uint8_t* uri, - SordNode* graph, - const uint8_t* blank_prefix) -{ - const uint8_t* const path = sord_file_uri_to_path(uri); - if (!path) { - return false; - } - - FILE* const fd = fopen((const char*)path, "w"); - if (!fd) { - fprintf(stderr, "Failed to open file %s\n", path); - return false; - } - - const bool ret = sord_write_file_handle(model, env, syntax, fd, - uri, graph, blank_prefix); - fclose(fd); - return ret; -} - static void write_statement(SordModel* sord, SerdWriter* writer, SordQuad tup, - const SordNode* anon_subject) + SerdStatementFlags flags) { const SordNode* s = tup[SORD_SUBJECT]; const SordNode* p = tup[SORD_PREDICATE]; @@ -248,84 +135,50 @@ write_statement(SordModel* sord, SerdWriter* writer, SordQuad tup, language.buf = (const uint8_t*)lang_str; }; - SerdStatementFlags flags = 0; + // TODO: Subject abbreviation - SerdNode subject = *ss; - if (anon_subject) { - assert(s == anon_subject); - // TODO: Need context to abbreviate correctly - //flags |= SERD_ANON_S_BEGIN; - } else if (sord_node_is_inline_object(s)) { + if (sord_node_is_inline_object(s) && !(flags & SERD_ANON_CONT)) { return; } - if (sord_node_is_inline_object(o)) { - SerdNode anon = *so; + if (sord_node_is_inline_object(o)) { SordQuad sub_pat = { o, 0, 0, 0 }; SordIter* sub_iter = sord_find(sord, sub_pat); - flags |= (sub_iter) ? SERD_ANON_O_BEGIN : SERD_EMPTY_O; + + SerdStatementFlags start_flags = flags + | ((sub_iter) ? SERD_ANON_O_BEGIN : SERD_EMPTY_O); serd_writer_write_statement( - writer, flags, NULL, &subject, sp, &anon, sd, &language); + writer, start_flags, NULL, ss, sp, so, sd, &language); if (sub_iter) { + flags |= SERD_ANON_CONT; for (; !sord_iter_end(sub_iter); sord_iter_next(sub_iter)) { SordQuad sub_tup; sord_iter_get(sub_iter, sub_tup); - write_statement(sord, writer, sub_tup, o); + write_statement(sord, writer, sub_tup, flags); } sord_iter_free(sub_iter); serd_writer_end_anon(writer, so); } - } else if (!sord_node_is_inline_object(s) || s == anon_subject) { + } else { serd_writer_write_statement( - writer, flags, NULL, &subject, sp, so, sd, &language); + writer, flags, NULL, ss, sp, so, sd, &language); } } bool -sord_write_writer(SordModel* model, - SerdWriter* writer, - SordNode* graph) +sord_write(SordModel* model, + SerdWriter* writer, + SordNode* graph) { SordQuad pat = { 0, 0, 0, graph }; SordIter* iter = sord_find(model, pat); for (; !sord_iter_end(iter); sord_iter_next(iter)) { SordQuad tup; sord_iter_get(iter, tup); - write_statement(model, writer, tup, NULL); + write_statement(model, writer, tup, 0); } sord_iter_free(iter); return true; } - -struct SerdBuffer { - uint8_t* buf; - size_t len; -}; - -static size_t -string_sink(const void* buf, size_t len, void* stream) -{ - struct SerdBuffer* out = (struct SerdBuffer*)stream; - out->buf = realloc(out->buf, out->len + len); - memcpy(out->buf + out->len, buf, len); - out->len += len; - return len; -} - -SORD_API -uint8_t* -sord_write_string(SordModel* model, - SerdEnv* env, - SerdSyntax syntax, - const uint8_t* base_uri) -{ - struct SerdBuffer buf = { NULL, 0 }; - - SerdWriter* writer = make_writer(env, syntax, base_uri, string_sink, &buf); - sord_write_writer(model, writer, NULL); - serd_writer_free(writer); - string_sink("", 1, &buf); - return buf.buf; -} |