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author | David Robillard <d@drobilla.net> | 2011-01-24 21:11:53 +0000 |
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committer | David Robillard <d@drobilla.net> | 2011-01-24 21:11:53 +0000 |
commit | 6903e56e2443a1a5b023d688cb7fd54e3580316d (patch) | |
tree | 291d35f268ed8de8ed1a671800d3481003abc4dc /src/reader.c | |
parent | cffc0e7bb7a52153673d3eba2e31d6b2930a6248 (diff) | |
download | serd-6903e56e2443a1a5b023d688cb7fd54e3580316d.tar.gz serd-6903e56e2443a1a5b023d688cb7fd54e3580316d.tar.bz2 serd-6903e56e2443a1a5b023d688cb7fd54e3580316d.zip |
Remove SerdString from public API in favour of more expressive (and not necessarily inline with data payload) SerdNode.
git-svn-id: http://svn.drobilla.net/serd/trunk@53 490d8e77-9747-427b-9fa3-0b8f29cee8a0
Diffstat (limited to 'src/reader.c')
-rw-r--r-- | src/reader.c | 68 |
1 files changed, 47 insertions, 21 deletions
diff --git a/src/reader.c b/src/reader.c index 0dfdbedc..35067403 100644 --- a/src/reader.c +++ b/src/reader.c @@ -8,11 +8,11 @@ * * Serd is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public * License for details. * * You should have received a copy of the GNU Lesser General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. + * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <assert.h> @@ -34,7 +34,7 @@ #define STACK_PAGE_SIZE 4096 #define READ_BUF_LEN 4096 #ifndef NDEBUG -#define STACK_DEBUG 1 +#define STACK_DEBUG 1 #endif typedef struct { @@ -60,7 +60,7 @@ typedef struct { const Node* predicate; } ReadContext; -static const Node SERD_NODE_NULL = { 0, 0, 0, 0 }; +static const Node INTERNAL_NODE_NULL = { 0, 0, 0, 0 }; struct SerdReaderImpl { void* handle; @@ -269,18 +269,42 @@ pop_string(SerdReader reader, Ref ref) } } +static inline SerdNode +public_node_from_ref(SerdReader reader, SerdType type, Ref ref) +{ + if (!ref) { + return SERD_NODE_NULL; + } + const SerdString* str = deref(reader, ref); + const SerdNode public = { type, str->n_bytes, str->n_chars, str->buf }; + return public; +} + +static inline SerdNode +public_node(SerdReader reader, const Node* private) +{ + return public_node_from_ref(reader, private->type, private->value); +} + + static inline bool emit_statement(SerdReader reader, const Node* g, const Node* s, const Node* p, const Node* o) { assert(s->value && p->value && o->value); - return reader->statement_sink( - reader->handle, - g ? deref(reader, g->value) : NULL, g ? g->type : 0, - deref(reader, s->value), s->type, - deref(reader, p->value), p->type, - deref(reader, o->value), o->type, - deref(reader, o->datatype), deref(reader, o->lang)); + const SerdNode graph = g ? public_node(reader, g) : SERD_NODE_NULL; + const SerdNode subject = public_node(reader, s); + const SerdNode predicate = public_node(reader, p); + const SerdNode object = public_node(reader, o); + const SerdNode object_datatype = public_node_from_ref(reader, SERD_URI, o->datatype); + const SerdNode object_lang = public_node_from_ref(reader, SERD_LITERAL, o->lang); + return reader->statement_sink(reader->handle, + &graph, + &subject, + &predicate, + &object, + &object_datatype, + &object_lang); } static bool read_collection(SerdReader reader, ReadContext ctx, Node* dest); @@ -891,7 +915,7 @@ static bool read_literal(SerdReader reader, Node* dest) { Ref str = 0; - Node datatype = SERD_NODE_NULL; + Node datatype = INTERNAL_NODE_NULL; const uint8_t c = peek_byte(reader); if (c == '-' || c == '+' || is_digit(c)) { return read_number(reader, dest); @@ -1000,7 +1024,8 @@ read_blank(SerdReader reader, ReadContext ctx, Node* dest) read_ws_star(reader); eat_byte(reader, ']'); if (reader->end_sink) { - reader->end_sink(reader->handle, deref(reader, dest->value)); + const SerdNode end = public_node(reader, dest); + reader->end_sink(reader->handle, &end); } return true; case '(': @@ -1040,7 +1065,7 @@ read_object(SerdReader reader, ReadContext ctx) uint8_t pre[6]; bool ret = false; bool emit = (ctx.subject != 0); - Node o = SERD_NODE_NULL; + Node o = INTERNAL_NODE_NULL; const uint8_t c = peek_byte(reader); switch (c) { case ')': @@ -1122,7 +1147,7 @@ read_predicateObjectList(SerdReader reader, ReadContext ctx) if (reader->eof) { return false; } - Node predicate = SERD_NODE_NULL; + Node predicate = INTERNAL_NODE_NULL; TRY_RET(read_verb(reader, &predicate)); TRY_THROW(read_ws_plus(reader)); ctx.predicate = &predicate; @@ -1207,7 +1232,7 @@ read_collection(SerdReader reader, ReadContext ctx, Node* dest) static Node read_subject(SerdReader reader, ReadContext ctx) { - Node subject = SERD_NODE_NULL; + Node subject = INTERNAL_NODE_NULL; switch (peek_byte(reader)) { case '[': case '(': case '_': read_blank(reader, ctx, &subject); @@ -1244,7 +1269,8 @@ read_base(SerdReader reader) TRY_RET(read_ws_plus(reader)); Ref uri; TRY_RET(uri = read_uriref(reader)); - reader->base_sink(reader->handle, deref(reader, uri)); + const SerdNode uri_node = public_node_from_ref(reader, SERD_URI, uri); + reader->base_sink(reader->handle, &uri_node); pop_string(reader, uri); return true; } @@ -1266,9 +1292,9 @@ read_prefixID(SerdReader reader) read_ws_star(reader); Ref uri = 0; TRY_THROW(uri = read_uriref(reader)); - ret = reader->prefix_sink(reader->handle, - deref(reader, name), - deref(reader, uri)); + const SerdNode name_node = public_node_from_ref(reader, SERD_LITERAL, name); + const SerdNode uri_node = public_node_from_ref(reader, SERD_URI, uri); + ret = reader->prefix_sink(reader->handle, &name_node, &uri_node); pop_string(reader, uri); except: pop_string(reader, name); @@ -1352,7 +1378,7 @@ serd_reader_new(SerdSyntax syntax, memset(reader->read_buf, '\0', READ_BUF_LEN * 2); - /* Read into the second page of the buffer. Occasionally readahead + /* Read into the second page of the buffer. Occasionally readahead will move the read_head to before this point when readahead causes a page fault. */ |