diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/env.c | 77 | ||||
| -rw-r--r-- | src/node.c | 172 | ||||
| -rw-r--r-- | src/reader.c | 22 | ||||
| -rw-r--r-- | src/serd_internal.h | 12 | ||||
| -rw-r--r-- | src/serdi.c | 13 | ||||
| -rw-r--r-- | src/writer.c | 149 |
6 files changed, 246 insertions, 199 deletions
@@ -20,14 +20,14 @@ #include <string.h> typedef struct { - SerdNode name; - SerdNode uri; + SerdNode* name; + SerdNode* uri; } SerdPrefix; struct SerdEnvImpl { SerdPrefix* prefixes; size_t n_prefixes; - SerdNode base_uri_node; + SerdNode* base_uri_node; SerdURI base_uri; }; @@ -45,11 +45,11 @@ void serd_env_free(SerdEnv* env) { for (size_t i = 0; i < env->n_prefixes; ++i) { - serd_node_free(&env->prefixes[i].name); - serd_node_free(&env->prefixes[i].uri); + serd_node_free(env->prefixes[i].name); + serd_node_free(env->prefixes[i].uri); } free(env->prefixes); - serd_node_free(&env->base_uri_node); + serd_node_free(env->base_uri_node); free(env); } @@ -60,7 +60,7 @@ serd_env_get_base_uri(const SerdEnv* env, if (out) { *out = env->base_uri; } - return &env->base_uri_node; + return env->base_uri_node; } SerdStatus @@ -72,13 +72,13 @@ serd_env_set_base_uri(SerdEnv* env, } // Resolve base URI and create a new node and URI for it - SerdURI base_uri; - SerdNode base_uri_node = serd_node_new_uri_from_node( + SerdURI base_uri; + SerdNode* base_uri_node = serd_node_new_uri_from_node( uri, &env->base_uri, &base_uri); - if (base_uri_node.buf) { + if (base_uri_node) { // Replace the current base URI - serd_node_free(&env->base_uri_node); + serd_node_free(env->base_uri_node); env->base_uri_node = base_uri_node; env->base_uri = base_uri; return SERD_SUCCESS; @@ -92,7 +92,7 @@ serd_env_find(const SerdEnv* env, size_t name_len) { for (size_t i = 0; i < env->n_prefixes; ++i) { - const SerdNode* const prefix_name = &env->prefixes[i].name; + const SerdNode* const prefix_name = env->prefixes[i].name; if (prefix_name->n_bytes == name_len) { if (!memcmp(serd_node_get_string(prefix_name), name, name_len)) { return &env->prefixes[i]; @@ -110,9 +110,9 @@ serd_env_add(SerdEnv* env, const char* name_str = serd_node_get_string(name); SerdPrefix* const prefix = serd_env_find(env, name_str, name->n_bytes); if (prefix) { - SerdNode old_prefix_uri = prefix->uri; + SerdNode* old_prefix_uri = prefix->uri; prefix->uri = serd_node_copy(uri); - serd_node_free(&old_prefix_uri); + serd_node_free(old_prefix_uri); } else { env->prefixes = (SerdPrefix*)realloc( env->prefixes, (++env->n_prefixes) * sizeof(SerdPrefix)); @@ -126,20 +126,20 @@ serd_env_set_prefix(SerdEnv* env, const SerdNode* name, const SerdNode* uri) { - if (!name->buf || uri->type != SERD_URI) { + if (!name || uri->type != SERD_URI) { return SERD_ERR_BAD_ARG; } else if (serd_uri_string_has_scheme(serd_node_get_string(uri))) { // Set prefix to absolute URI serd_env_add(env, name, uri); } else { // Resolve relative URI and create a new node and URI for it - SerdURI abs_uri; - SerdNode abs_uri_node = serd_node_new_uri_from_node( + SerdURI abs_uri; + SerdNode* abs_uri_node = serd_node_new_uri_from_node( uri, &env->base_uri, &abs_uri); // Set prefix to resolved (absolute) URI - serd_env_add(env, name, &abs_uri_node); - serd_node_free(&abs_uri_node); + serd_env_add(env, name, abs_uri_node); + serd_node_free(abs_uri_node); } return SERD_SUCCESS; } @@ -149,20 +149,24 @@ serd_env_set_prefix_from_strings(SerdEnv* env, const char* name, const char* uri) { - const SerdNode name_node = serd_node_from_string(SERD_LITERAL, name); - const SerdNode uri_node = serd_node_from_string(SERD_URI, uri); + SerdNode* name_node = serd_node_new_string(SERD_LITERAL, name); + SerdNode* uri_node = serd_node_new_string(SERD_URI, uri); - return serd_env_set_prefix(env, &name_node, &uri_node); + const SerdStatus st = serd_env_set_prefix(env, name_node, uri_node); + + serd_node_free(name_node); + serd_node_free(uri_node); + return st; } bool -serd_env_qualify(const SerdEnv* env, - const SerdNode* uri, - SerdNode* prefix, - SerdSlice* suffix) +serd_env_qualify(const SerdEnv* env, + const SerdNode* uri, + const SerdNode** prefix, + SerdSlice* suffix) { for (size_t i = 0; i < env->n_prefixes; ++i) { - const SerdNode* const prefix_uri = &env->prefixes[i].uri; + const SerdNode* const prefix_uri = env->prefixes[i].uri; if (uri->n_bytes >= prefix_uri->n_bytes) { const char* prefix_str = serd_node_get_string(prefix_uri); const char* uri_str = serd_node_get_string(uri); @@ -193,8 +197,8 @@ serd_env_expand(const SerdEnv* env, const size_t name_len = colon - str; const SerdPrefix* const prefix = serd_env_find(env, str, name_len); if (prefix) { - uri_prefix->buf = serd_node_get_string(&prefix->uri); - uri_prefix->len = prefix->uri.n_bytes; + uri_prefix->buf = serd_node_get_string(prefix->uri); + uri_prefix->len = prefix->uri->n_bytes; uri_suffix->buf = colon + 1; uri_suffix->len = curie->n_bytes - (colon - str) - 1; return SERD_SUCCESS; @@ -202,7 +206,7 @@ serd_env_expand(const SerdEnv* env, return SERD_ERR_BAD_CURIE; } -SerdNode +SerdNode* serd_env_expand_node(const SerdEnv* env, const SerdNode* node) { @@ -211,12 +215,13 @@ serd_env_expand_node(const SerdEnv* env, SerdSlice prefix; SerdSlice suffix; if (serd_env_expand(env, node, &prefix, &suffix)) { - return SERD_NODE_NULL; + return NULL; } const size_t len = prefix.len + suffix.len; - char* buf = (char*)malloc(len + 1); - SerdNode ret = { buf, len, 0, SERD_URI }; - snprintf((char*)buf, ret.n_bytes + 1, "%s%s", prefix.buf, suffix.buf); + SerdNode* ret = serd_node_malloc(len, 0, SERD_URI); + char* buf = serd_node_buffer(ret); + snprintf(buf, len + 1, "%s%s", prefix.buf, suffix.buf); + ret->n_bytes = len; return ret; } case SERD_URI: { @@ -224,7 +229,7 @@ serd_env_expand_node(const SerdEnv* env, return serd_node_new_uri_from_node(node, &env->base_uri, &ignored); } default: - return SERD_NODE_NULL; + return NULL; } } @@ -234,6 +239,6 @@ serd_env_foreach(const SerdEnv* env, void* handle) { for (size_t i = 0; i < env->n_prefixes; ++i) { - func(handle, &env->prefixes[i].name, &env->prefixes[i].uri); + func(handle, env->prefixes[i].name, env->prefixes[i].uri); } } @@ -30,61 +30,87 @@ # endif #endif +SerdNode* +serd_node_malloc(size_t n_bytes, SerdNodeFlags flags, SerdType type) +{ + SerdNode* node = (SerdNode*)calloc(1, sizeof(SerdNode) + n_bytes + 1); + node->n_bytes = 0; + node->flags = flags; + node->type = type; + return node; +} + char* serd_node_buffer(SerdNode* node) { return (char*)(node + 1); } -SerdNode -serd_node_from_string(SerdType type, const char* str) +void +serd_node_set(SerdNode** dst, const SerdNode* src) +{ + if (src) { + if (!(*dst) || (*dst)->n_bytes < src->n_bytes) { + (*dst) = (SerdNode*)realloc(*dst, sizeof(SerdNode) + src->n_bytes + 1); + } + + memcpy(*dst, src, sizeof(SerdNode) + src->n_bytes + 1); + } else if (*dst) { + (*dst)->type = SERD_NOTHING; + } +} + +SerdNode* +serd_node_new_string(SerdType type, const char* str) { if (!str) { - return SERD_NODE_NULL; + return NULL; } - uint32_t flags = 0; - const size_t n_bytes = serd_strlen(str, &flags); - const SerdNode ret = { str, n_bytes, flags, type }; - return ret; + uint32_t flags = 0; + const size_t n_bytes = serd_strlen(str, &flags); + SerdNode* node = serd_node_malloc(n_bytes, flags, type); + memcpy(serd_node_buffer(node), str, n_bytes); + node->n_bytes = n_bytes; + return node; } -SerdNode -serd_node_from_substring(SerdType type, const char* str, const size_t len) +SerdNode* +serd_node_new_substring(SerdType type, const char* str, const size_t len) { if (!str) { - return SERD_NODE_NULL; + return NULL; } - uint32_t flags = 0; - const size_t n_bytes = serd_substrlen(str, len, &flags); - const SerdNode ret = { str, n_bytes, flags, type }; - return ret; + uint32_t flags = 0; + const size_t n_bytes = serd_substrlen(str, len, &flags); + SerdNode* node = serd_node_malloc(n_bytes, flags, type); + memcpy(serd_node_buffer(node), str, n_bytes); + node->n_bytes = n_bytes; + return node; } -SerdNode +SerdNode* serd_node_copy(const SerdNode* node) { - if (!node || !node->buf) { - return SERD_NODE_NULL; + if (!node) { + return NULL; } - SerdNode copy = *node; - char* buf = (char*)malloc(copy.n_bytes + 1); - memcpy(buf, node->buf, copy.n_bytes + 1); - copy.buf = buf; + const size_t size = sizeof(SerdNode) + node->n_bytes + 1; + SerdNode* copy = (SerdNode*)malloc(size); + memcpy(copy, node, size); return copy; } bool serd_node_equals(const SerdNode* a, const SerdNode* b) { - return (a == b) - || (a->type == b->type - && a->n_bytes == b->n_bytes - && ((a->buf == b->buf) || !memcmp((const char*)a->buf, - (const char*)b->buf, - a->n_bytes + 1))); + return (a == b) || + (a && b && a->type == b->type && a->n_bytes == b->n_bytes && + !memcmp(serd_node_get_string(a), + serd_node_get_string(b), + a->n_bytes)); } static size_t @@ -113,7 +139,7 @@ string_sink(const void* buf, size_t len, void* stream) return len; } -SerdNode +SerdNode* serd_node_new_uri_from_node(const SerdNode* uri_node, const SerdURI* base, SerdURI* out) @@ -121,17 +147,17 @@ serd_node_new_uri_from_node(const SerdNode* uri_node, const char* uri_str = serd_node_get_string(uri_node); return (uri_node->type == SERD_URI && uri_str) ? serd_node_new_uri_from_string(uri_str, base, out) - : SERD_NODE_NULL; + : NULL; } -SerdNode +SerdNode* serd_node_new_uri_from_string(const char* str, const SerdURI* base, SerdURI* out) { if (!str || str[0] == '\0') { // Empty URI => Base URI, or nothing if no base is given - return base ? serd_node_new_uri(base, NULL, out) : SERD_NODE_NULL; + return base ? serd_node_new_uri(base, NULL, out) : NULL; } SerdURI uri; @@ -158,7 +184,7 @@ is_uri_path_char(const char c) } } -SerdNode +SerdNode* serd_node_new_file_uri(const char* path, const char* hostname, SerdURI* out, @@ -193,15 +219,17 @@ serd_node_new_file_uri(const char* path, } serd_buffer_sink_finish(&buffer); + SerdNode* node = serd_node_new_substring( + SERD_URI, (const char*)buffer.buf, buffer.len); if (out) { - serd_uri_parse((const char*)buffer.buf, out); + serd_uri_parse(serd_node_buffer(node), out); } - return serd_node_from_substring( - SERD_URI, (const char*)buffer.buf, buffer.len); + free(buffer.buf); + return node; } -SerdNode +SerdNode* serd_node_new_uri(const SerdURI* uri, const SerdURI* base, SerdURI* out) { SerdURI abs_uri = *uri; @@ -210,22 +238,21 @@ serd_node_new_uri(const SerdURI* uri, const SerdURI* base, SerdURI* out) } const size_t len = serd_uri_string_length(&abs_uri); - char* buf = (char*)malloc(len + 1); - SerdNode node = { buf, len, 0, SERD_URI }; - char* ptr = buf; + SerdNode* node = serd_node_malloc(len, 0, SERD_URI); + char* ptr = serd_node_buffer(node); const size_t actual_len = serd_uri_serialise(&abs_uri, string_sink, &ptr); - buf[actual_len] = '\0'; - node.n_bytes = actual_len; + serd_node_buffer(node)[actual_len] = '\0'; + node->n_bytes = actual_len; if (out) { - serd_uri_parse(buf, out); // TODO: cleverly avoid double parse + serd_uri_parse(serd_node_buffer(node), out); // TODO: avoid double parse } return node; } -SerdNode +SerdNode* serd_node_new_relative_uri(const SerdURI* uri, const SerdURI* base, const SerdURI* root, @@ -233,17 +260,16 @@ serd_node_new_relative_uri(const SerdURI* uri, { const size_t uri_len = serd_uri_string_length(uri); const size_t base_len = serd_uri_string_length(base); - char* buf = (char*)malloc(uri_len + base_len + 1); - SerdNode node = { buf, 0, 0, SERD_URI }; - char* ptr = buf; + SerdNode* node = serd_node_malloc(uri_len + base_len, 0, SERD_URI); + char* ptr = serd_node_buffer(node); const size_t actual_len = serd_uri_serialise_relative( uri, base, root, string_sink, &ptr); - buf[actual_len] = '\0'; - node.n_bytes = actual_len; + serd_node_buffer(node)[actual_len] = '\0'; + node->n_bytes = actual_len; if (out) { - serd_uri_parse(buf, out); // TODO: cleverly avoid double parse + serd_uri_parse(serd_node_buffer(node), out); // TODO: avoid double parse } return node; @@ -256,18 +282,19 @@ serd_digits(double abs) return lg < 1.0 ? 1U : (unsigned)lg; } -SerdNode +SerdNode* serd_node_new_decimal(double d, unsigned frac_digits) { if (isnan(d) || isinf(d)) { - return SERD_NODE_NULL; + return NULL; } - const double abs_d = fabs(d); - const unsigned int_digits = serd_digits(abs_d); - char* buf = (char*)calloc(int_digits + frac_digits + 3, 1); - SerdNode node = { buf, 0, 0, SERD_LITERAL }; - const double int_part = floor(abs_d); + const double abs_d = fabs(d); + const unsigned int_digits = serd_digits(abs_d); + const size_t len = int_digits + frac_digits + 3; + SerdNode* const node = serd_node_malloc(len, 0, SERD_LITERAL); + char* const buf = serd_node_buffer(node); + const double int_part = floor(abs_d); // Point s to decimal point location char* s = buf + int_digits; @@ -283,13 +310,14 @@ serd_node_new_decimal(double d, unsigned frac_digits) *t-- = '0' + (dec % 10); } while ((dec /= 10) > 0); + *s++ = '.'; // Write fractional part (right to left) double frac_part = fabs(d - int_part); if (frac_part < DBL_EPSILON) { *s++ = '0'; - node.n_bytes = (s - buf); + node->n_bytes = (s - buf); } else { uint64_t frac = lround(frac_part * pow(10.0, (int)frac_digits)); s += frac_digits - 1; @@ -298,7 +326,7 @@ serd_node_new_decimal(double d, unsigned frac_digits) // Skip trailing zeros for (; i < frac_digits - 1 && !(frac % 10); ++i, --s, frac /= 10) {} - node.n_bytes = (s - buf) + 1; + node->n_bytes = (s - buf) + 1; // Write digits from last trailing zero to decimal point for (; i < frac_digits; ++i) { @@ -310,13 +338,13 @@ serd_node_new_decimal(double d, unsigned frac_digits) return node; } -SerdNode +SerdNode* serd_node_new_integer(int64_t i) { int64_t abs_i = (i < 0) ? -i : i; const unsigned digits = serd_digits(abs_i); - char* buf = (char*)calloc(digits + 2, 1); - SerdNode node = { (const char*)buf, 0, 0, SERD_LITERAL }; + SerdNode* node = serd_node_malloc(digits + 2, 0, SERD_LITERAL); + char* buf = serd_node_buffer(node); // Point s to the end char* s = buf + digits - 1; @@ -325,7 +353,7 @@ serd_node_new_integer(int64_t i) ++s; } - node.n_bytes = (s - buf) + 1; + node->n_bytes = (s - buf) + 1; // Write integer part (right to left) do { @@ -356,12 +384,16 @@ encode_chunk(uint8_t out[4], const uint8_t in[3], size_t n_in) out[3] = ((n_in > 2) ? b64_map[in[2] & 0x3F] : (uint8_t)'='); } -SerdNode +SerdNode* serd_node_new_blob(const void* buf, size_t size, bool wrap_lines) { + if (!buf || !size) { + return NULL; + } + const size_t len = (size + 2) / 3 * 4 + (wrap_lines * ((size - 1) / 57)); - uint8_t* str = (uint8_t*)calloc(len + 2, 1); - SerdNode node = { (const char*)str, len, 0, SERD_LITERAL }; + SerdNode* node = serd_node_malloc(len + 1, 0, SERD_LITERAL); + uint8_t* str = (uint8_t*)serd_node_buffer(node); for (size_t i = 0, j = 0; i < size; i += 3, j += 4) { uint8_t in[4] = { 0, 0, 0, 0 }; size_t n_in = MIN(3, size - i); @@ -369,11 +401,12 @@ serd_node_new_blob(const void* buf, size_t size, bool wrap_lines) if (wrap_lines && i > 0 && (i % 57) == 0) { str[j++] = '\n'; - node.flags |= SERD_HAS_NEWLINE; + node->flags |= SERD_HAS_NEWLINE; } encode_chunk(str + j, in, n_in); } + node->n_bytes = len; return node; } @@ -386,7 +419,7 @@ serd_node_get_type(const SerdNode* node) const char* serd_node_get_string(const SerdNode* node) { - return node ? node->buf : NULL; + return node ? (const char*)(node + 1) : NULL; } size_t @@ -404,8 +437,5 @@ serd_node_get_flags(const SerdNode* node) void serd_node_free(SerdNode* node) { - if (node && node->buf) { - free((char*)node->buf); - node->buf = NULL; - } + free(node); } diff --git a/src/reader.c b/src/reader.c index 37c4719c..7c262189 100644 --- a/src/reader.c +++ b/src/reader.c @@ -40,9 +40,9 @@ void set_blank_id(SerdReader* reader, Ref ref, size_t buf_size) { SerdNode* node = deref(reader, ref); + char* buf = (char*)(node + 1); const char* prefix = reader->bprefix ? (const char*)reader->bprefix : ""; - node->n_bytes = snprintf( - (char*)node->buf, buf_size, "%sb%u", prefix, reader->next_id++); + node->n_bytes = snprintf(buf, buf_size, "%sb%u", prefix, reader->next_id++); } size_t @@ -86,7 +86,6 @@ push_node_padded(SerdReader* reader, size_t maxlen, node->n_bytes = n_bytes; node->flags = 0; node->type = type; - node->buf = NULL; char* buf = (char*)(node + 1); memcpy(buf, str, n_bytes + 1); @@ -108,12 +107,7 @@ push_node(SerdReader* reader, SerdType type, const char* str, size_t n_bytes) SerdNode* deref(SerdReader* reader, const Ref ref) { - if (ref) { - SerdNode* node = (SerdNode*)(reader->stack.buf + ref); - node->buf = (char*)node + sizeof(SerdNode); - return node; - } - return NULL; + return ref ? (SerdNode*)(reader->stack.buf + ref) : NULL; } Ref @@ -136,8 +130,8 @@ bool emit_statement(SerdReader* reader, ReadContext ctx, Ref o, Ref d, Ref l) { SerdNode* graph = deref(reader, ctx.graph); - if (!graph && reader->default_graph.buf) { - graph = &reader->default_graph; + if (!graph && reader->default_graph) { + graph = reader->default_graph; } bool ret = !reader->statement_sink || !reader->statement_sink( @@ -181,7 +175,7 @@ serd_reader_new(SerdSyntax syntax, me->prefix_sink = prefix_sink; me->statement_sink = statement_sink; me->end_sink = end_sink; - me->default_graph = SERD_NODE_NULL; + me->default_graph = NULL; me->stack = serd_stack_new(SERD_PAGE_SIZE); me->syntax = syntax; me->next_id = 1; @@ -215,7 +209,7 @@ serd_reader_free(SerdReader* reader) pop_node(reader, reader->rdf_nil); pop_node(reader, reader->rdf_rest); pop_node(reader, reader->rdf_first); - serd_node_free(&reader->default_graph); + serd_node_free(reader->default_graph); #ifdef SERD_STACK_CHECK free(reader->allocs); @@ -252,7 +246,7 @@ void serd_reader_set_default_graph(SerdReader* reader, const SerdNode* graph) { - serd_node_free(&reader->default_graph); + serd_node_free(reader->default_graph); reader->default_graph = serd_node_copy(graph); } diff --git a/src/serd_internal.h b/src/serd_internal.h index bd6db527..3f138a21 100644 --- a/src/serd_internal.h +++ b/src/serd_internal.h @@ -44,6 +44,16 @@ static const uint8_t replacement_char[] = { 0xEF, 0xBF, 0xBD }; +struct SerdNodeImpl { + size_t n_bytes; /**< Size in bytes (not including null) */ + SerdNodeFlags flags; /**< Node flags (e.g. string properties) */ + SerdType type; /**< Node type */ +}; + +static const SerdNode SERD_NODE_NULL = { 0, 0, SERD_NOTHING }; + +SerdNode* serd_node_malloc(size_t n_bytes, SerdNodeFlags flags, SerdType type); +void serd_node_set(SerdNode** dst, const SerdNode* src); char* serd_node_buffer(SerdNode* node); /* File and Buffer Utilities */ @@ -571,7 +581,7 @@ struct SerdReaderImpl { Ref rdf_first; Ref rdf_rest; Ref rdf_nil; - SerdNode default_graph; + SerdNode* default_graph; SerdByteSource source; SerdStack stack; SerdSyntax syntax; diff --git a/src/serdi.c b/src/serdi.c index 248fbd91..02714201 100644 --- a/src/serdi.c +++ b/src/serdi.c @@ -223,8 +223,8 @@ main(int argc, char** argv) : SERD_NQUADS); } - SerdURI base_uri = SERD_URI_NULL; - SerdNode base = SERD_NODE_NULL; + SerdURI base_uri = SERD_URI_NULL; + SerdNode* base = NULL; if (a < argc) { // Base URI given on command line base = serd_node_new_uri_from_string( (const char*)argv[a], NULL, &base_uri); @@ -233,7 +233,7 @@ main(int argc, char** argv) } FILE* out_fd = stdout; - SerdEnv* env = serd_env_new(&base); + SerdEnv* env = serd_env_new(base); int output_style = 0; if (output_syntax == SERD_NTRIPLES || ascii) { @@ -272,10 +272,11 @@ main(int argc, char** argv) serd_writer_set_error_sink(writer, quiet_error_sink, NULL); } - SerdNode root = serd_node_from_string(SERD_URI, root_uri); - serd_writer_set_root_uri(writer, &root); + SerdNode* root = serd_node_new_string(SERD_URI, root_uri); + serd_writer_set_root_uri(writer, root); serd_writer_chop_blank_prefix(writer, chop_prefix); serd_reader_add_blank_prefix(reader, add_prefix); + serd_node_free(root); SerdStatus status = SERD_SUCCESS; if (!from_file) { @@ -294,7 +295,7 @@ main(int argc, char** argv) serd_writer_finish(writer); serd_writer_free(writer); serd_env_free(env); - serd_node_free(&base); + serd_node_free(base); if (from_file) { fclose(in_fd); diff --git a/src/writer.c b/src/writer.c index 74069e63..79987b3d 100644 --- a/src/writer.c +++ b/src/writer.c @@ -22,16 +22,12 @@ #include <string.h> typedef struct { - SerdNode graph; - SerdNode subject; - SerdNode predicate; + SerdNode* graph; + SerdNode* subject; + SerdNode* predicate; } WriteContext; -static const WriteContext WRITE_CONTEXT_NULL = { - { 0, 0, 0, SERD_NOTHING }, - { 0, 0, 0, SERD_NOTHING }, - { 0, 0, 0, SERD_NOTHING } -}; +static const WriteContext WRITE_CONTEXT_NULL = { NULL, NULL, NULL }; typedef enum { SEP_NONE, @@ -82,7 +78,7 @@ struct SerdWriterImpl { SerdSyntax syntax; SerdStyle style; SerdEnv* env; - SerdNode root_node; + SerdNode* root_node; SerdURI root_uri; SerdURI base_uri; SerdStack anon_stack; @@ -90,7 +86,7 @@ struct SerdWriterImpl { SerdErrorSink error_sink; void* error_handle; WriteContext context; - SerdNode list_subj; + SerdNode* list_subj; unsigned list_depth; unsigned indent; char* bprefix; @@ -142,18 +138,23 @@ anon_stack_top(SerdWriter* writer) + writer->anon_stack.size - sizeof(WriteContext)); } -static void -copy_node(SerdNode* dst, const SerdNode* src) -{ - if (src) { - dst->buf = (char*)realloc((char*)dst->buf, src->n_bytes + 1); - dst->n_bytes = src->n_bytes; - dst->flags = src->flags; - dst->type = src->type; - memcpy((char*)dst->buf, src->buf, src->n_bytes + 1); - } else { - dst->type = SERD_NOTHING; +static inline SerdNode* +ctx(SerdWriter* writer, const Field field) +{ + SerdNode* node = NULL; + switch (field) { + case FIELD_SUBJECT: + node = writer->context.subject; + break; + case FIELD_PREDICATE: + node = writer->context.predicate; + break; + case FIELD_GRAPH: + node = writer->context.graph; + default: break; } + + return node && node->type ? node : NULL; } static inline size_t @@ -394,22 +395,26 @@ write_sep(SerdWriter* writer, const Sep sep) static SerdStatus reset_context(SerdWriter* writer, bool graph) { - if (graph) { - writer->context.graph.type = SERD_NOTHING; + if (graph && writer->context.graph) { + writer->context.graph->type = SERD_NOTHING; + } + if (writer->context.subject) { + writer->context.subject->type = SERD_NOTHING; + } + if (writer->context.predicate) { + writer->context.predicate->type = SERD_NOTHING; } - writer->context.subject.type = SERD_NOTHING; - writer->context.predicate.type = SERD_NOTHING; - writer->empty = false; + writer->empty = false; return SERD_SUCCESS; } static SerdStatus free_context(SerdWriter* writer) { - serd_node_free(&writer->context.graph); - serd_node_free(&writer->context.subject); - serd_node_free(&writer->context.predicate); - return reset_context(writer, true); + serd_node_free(writer->context.graph); + serd_node_free(writer->context.subject); + serd_node_free(writer->context.predicate); + return SERD_SUCCESS; } static bool @@ -487,8 +492,8 @@ write_uri_node(SerdWriter* const writer, const Field field, const SerdStatementFlags flags) { - SerdNode prefix; - SerdSlice suffix; + const SerdNode* prefix; + SerdSlice suffix; if (is_inline_start(writer, field, flags)) { ++writer->indent; @@ -506,7 +511,7 @@ write_uri_node(SerdWriter* const writer, } else if (has_scheme && (writer->style & SERD_STYLE_CURIED) && serd_env_qualify(writer->env, node, &prefix, &suffix) && is_name(suffix.buf, suffix.len)) { - write_uri_from_node(writer, &prefix); + write_uri_from_node(writer, prefix); sink(":", 1, writer); write_uri(writer, suffix.buf, suffix.len); return true; @@ -591,7 +596,7 @@ write_blank(SerdWriter* const writer, return write_sep(writer, SEP_ANON_BEGIN); } else if (field == FIELD_SUBJECT && (flags & SERD_LIST_S_BEGIN)) { assert(writer->list_depth == 0); - copy_node(&writer->list_subj, node); + serd_node_set(&writer->list_subj, node); ++writer->list_depth; ++writer->indent; return write_sep(writer, SEP_LIST_BEGIN); @@ -656,7 +661,7 @@ write_pred(SerdWriter* writer, SerdStatementFlags flags, const SerdNode* pred) { write_node(writer, pred, NULL, NULL, FIELD_PREDICATE, flags); write_sep(writer, SEP_P_O); - copy_node(&writer->context.predicate, pred); + serd_node_set(&writer->context.predicate, pred); } static bool @@ -688,9 +693,8 @@ serd_writer_write_statement(SerdWriter* writer, const SerdNode* datatype, const SerdNode* lang) { - if (!subject || !predicate || !object - || !subject->buf || !predicate->buf || !object->buf - || !is_resource(subject) || !is_resource(predicate)) { + if (!subject || !predicate || !object || + !is_resource(subject) || !is_resource(predicate)) { return SERD_ERR_BAD_ARG; } @@ -717,13 +721,13 @@ serd_writer_write_statement(SerdWriter* writer, break; } - if ((graph && !serd_node_equals(graph, &writer->context.graph)) || - (!graph && writer->context.graph.type)) { + if ((graph && !serd_node_equals(graph, writer->context.graph)) || + (!graph && ctx(writer, FIELD_GRAPH))) { writer->indent = 0; - if (writer->context.subject.type) { + if (ctx(writer, FIELD_SUBJECT)) { write_sep(writer, SEP_END_S); } - if (writer->context.graph.type) { + if (ctx(writer, FIELD_GRAPH)) { write_sep(writer, SEP_GRAPH_END); } @@ -732,23 +736,23 @@ serd_writer_write_statement(SerdWriter* writer, TRY(write_node(writer, graph, datatype, lang, FIELD_GRAPH, flags)); ++writer->indent; write_sep(writer, SEP_GRAPH_BEGIN); - copy_node(&writer->context.graph, graph); + serd_node_set(&writer->context.graph, graph); } } if ((flags & SERD_LIST_CONT)) { if (write_list_obj(writer, flags, predicate, object, datatype, lang)) { // Reached end of list - if (--writer->list_depth == 0 && writer->list_subj.type) { + if (--writer->list_depth == 0 && writer->list_subj) { reset_context(writer, false); - serd_node_free(&writer->context.subject); + serd_node_free(writer->context.subject); writer->context.subject = writer->list_subj; - writer->list_subj = SERD_NODE_NULL; + writer->list_subj = NULL; } return SERD_SUCCESS; } - } else if (serd_node_equals(subject, &writer->context.subject)) { - if (serd_node_equals(predicate, &writer->context.predicate)) { + } else if (serd_node_equals(subject, writer->context.subject)) { + if (serd_node_equals(predicate, writer->context.predicate)) { // Abbreviate S P if (!(flags & SERD_ANON_O_BEGIN)) { ++writer->indent; @@ -760,14 +764,14 @@ serd_writer_write_statement(SerdWriter* writer, } } else { // Abbreviate S - Sep sep = writer->context.predicate.type ? SEP_END_P : SEP_S_P; + Sep sep = ctx(writer, FIELD_PREDICATE) ? SEP_END_P : SEP_S_P; write_sep(writer, sep); write_pred(writer, flags, predicate); write_node(writer, object, datatype, lang, FIELD_OBJECT, flags); } } else { // No abbreviation - if (writer->context.subject.type) { + if (ctx(writer, FIELD_SUBJECT)) { assert(writer->indent > 0); --writer->indent; if (serd_stack_is_empty(&writer->anon_stack)) { @@ -786,7 +790,7 @@ serd_writer_write_statement(SerdWriter* writer, } reset_context(writer, false); - copy_node(&writer->context.subject, subject); + serd_node_set(&writer->context.subject, subject); if (!(flags & SERD_LIST_S_BEGIN)) { write_pred(writer, flags, predicate); @@ -800,15 +804,15 @@ serd_writer_write_statement(SerdWriter* writer, &writer->anon_stack, sizeof(WriteContext)); *ctx = writer->context; WriteContext new_context = { - serd_node_copy(graph), serd_node_copy(subject), SERD_NODE_NULL }; + serd_node_copy(graph), serd_node_copy(subject), NULL }; if ((flags & SERD_ANON_S_BEGIN)) { new_context.predicate = serd_node_copy(predicate); } writer->context = new_context; } else { - copy_node(&writer->context.graph, graph); - copy_node(&writer->context.subject, subject); - copy_node(&writer->context.predicate, predicate); + serd_node_set(&writer->context.graph, graph); + serd_node_set(&writer->context.subject, subject); + serd_node_set(&writer->context.predicate, predicate); } return SERD_SUCCESS; @@ -831,10 +835,10 @@ serd_writer_end_anon(SerdWriter* writer, free_context(writer); writer->context = *anon_stack_top(writer); serd_stack_pop(&writer->anon_stack, sizeof(WriteContext)); - const bool is_subject = serd_node_equals(node, &writer->context.subject); + const bool is_subject = serd_node_equals(node, writer->context.subject); if (is_subject) { - copy_node(&writer->context.subject, node); - writer->context.predicate.type = SERD_NOTHING; + serd_node_set(&writer->context.subject, node); + writer->context.predicate->type = SERD_NOTHING; } return SERD_SUCCESS; } @@ -842,15 +846,17 @@ serd_writer_end_anon(SerdWriter* writer, SerdStatus serd_writer_finish(SerdWriter* writer) { - if (writer->context.subject.type) { + if (ctx(writer, FIELD_SUBJECT)) { write_sep(writer, SEP_END_S); } - if (writer->context.graph.type) { + if (ctx(writer, FIELD_GRAPH)) { write_sep(writer, SEP_GRAPH_END); } serd_byte_sink_flush(&writer->byte_sink); - writer->indent = 0; - return free_context(writer); + free_context(writer); + writer->indent = 0; + writer->context = WRITE_CONTEXT_NULL; + return SERD_SUCCESS; } SerdWriter* @@ -866,12 +872,12 @@ serd_writer_new(SerdSyntax syntax, writer->syntax = syntax; writer->style = style; writer->env = env; - writer->root_node = SERD_NODE_NULL; + writer->root_node = NULL; writer->root_uri = SERD_URI_NULL; writer->base_uri = base_uri ? *base_uri : SERD_URI_NULL; writer->anon_stack = serd_stack_new(4 * sizeof(WriteContext)); writer->context = context; - writer->list_subj = SERD_NODE_NULL; + writer->list_subj = NULL; writer->empty = true; writer->byte_sink = serd_byte_sink_new( ssink, stream, (style & SERD_STYLE_BULK) ? SERD_PAGE_SIZE : 1); @@ -909,7 +915,7 @@ serd_writer_set_base_uri(SerdWriter* writer, serd_env_get_base_uri(writer->env, &writer->base_uri); if (writer->syntax == SERD_TURTLE || writer->syntax == SERD_TRIG) { - if (writer->context.graph.type || writer->context.subject.type) { + if (ctx(writer, FIELD_GRAPH) || ctx(writer, FIELD_SUBJECT)) { sink(" .\n\n", 4, writer); reset_context(writer, true); } @@ -927,12 +933,13 @@ SerdStatus serd_writer_set_root_uri(SerdWriter* writer, const SerdNode* uri) { - serd_node_free(&writer->root_node); - if (uri && uri->buf) { + serd_node_free(writer->root_node); + if (uri) { writer->root_node = serd_node_copy(uri); - serd_uri_parse(serd_node_get_string(uri), &writer->root_uri); + serd_uri_parse(serd_node_get_string(writer->root_node), + &writer->root_uri); } else { - writer->root_node = SERD_NODE_NULL; + writer->root_node = NULL; writer->root_uri = SERD_URI_NULL; } return SERD_SUCCESS; @@ -945,7 +952,7 @@ serd_writer_set_prefix(SerdWriter* writer, { if (!serd_env_set_prefix(writer->env, name, uri)) { if (writer->syntax == SERD_TURTLE || writer->syntax == SERD_TRIG) { - if (writer->context.graph.type || writer->context.subject.type) { + if (ctx(writer, FIELD_GRAPH) || ctx(writer, FIELD_SUBJECT)) { sink(" .\n\n", 4, writer); reset_context(writer, true); } @@ -968,7 +975,7 @@ serd_writer_free(SerdWriter* writer) serd_stack_free(&writer->anon_stack); free(writer->bprefix); serd_byte_sink_free(&writer->byte_sink); - serd_node_free(&writer->root_node); + serd_node_free(writer->root_node); free(writer); } |