2 #include "yaml_private.h"
5 * Get the library version.
8 YAML_DECLARE(const char *)
9 yaml_get_version_string(void)
11 return YAML_VERSION_STRING;
15 * Get the library version numbers.
19 yaml_get_version(int *major, int *minor, int *patch)
21 *major = YAML_VERSION_MAJOR;
22 *minor = YAML_VERSION_MINOR;
23 *patch = YAML_VERSION_PATCH;
27 * Allocate a dynamic memory block.
31 yaml_malloc(size_t size)
33 return malloc(size ? size : 1);
37 * Reallocate a dynamic memory block.
41 yaml_realloc(void *ptr, size_t size)
43 return ptr ? realloc(ptr, size ? size : 1) : malloc(size ? size : 1);
47 * Free a dynamic memory block.
60 YAML_DECLARE(yaml_char_t *)
61 yaml_strdup(const yaml_char_t *str)
66 return (yaml_char_t *)strdup((char *)str);
74 yaml_string_extend(yaml_char_t **start,
75 yaml_char_t **pointer, yaml_char_t **end)
77 void *new_start = yaml_realloc(*start, (*end - *start)*2);
79 if (!new_start) return 0;
81 memset(new_start + (*end - *start), 0, *end - *start);
83 *pointer = new_start + (*pointer - *start);
84 *end = new_start + (*end - *start)*2;
91 * Append a string B to a string A.
96 yaml_char_t **a_start, yaml_char_t **a_pointer, yaml_char_t **a_end,
97 yaml_char_t **b_start, yaml_char_t **b_pointer, yaml_char_t **b_end)
99 if (*b_start == *b_pointer)
102 while (*a_end - *a_pointer <= *b_pointer - *b_start) {
103 if (!yaml_string_extend(a_start, a_pointer, a_end))
107 memcpy(*a_pointer, *b_start, *b_pointer - *b_start);
108 *a_pointer += *b_pointer - *b_start;
118 yaml_stack_extend(void **start, void **top, void **end)
120 void *new_start = yaml_realloc(*start, (*end - *start)*2);
122 if (!new_start) return 0;
124 *top = new_start + (*top - *start);
125 *end = new_start + (*end - *start)*2;
132 * Extend or move a queue.
136 yaml_queue_extend(void **start, void **head, void **tail, void **end)
138 /* Check if we need to resize the queue. */
140 if (*start == *head && *tail == *end) {
141 void *new_start = yaml_realloc(*start, (*end - *start)*2);
143 if (!new_start) return 0;
145 *head = new_start + (*head - *start);
146 *tail = new_start + (*tail - *start);
147 *end = new_start + (*end - *start)*2;
151 /* Check if we need to move the queue at the beginning of the buffer. */
154 if (*head != *tail) {
155 memmove(*start, *head, *tail - *head);
157 *tail -= *head - *start;
166 * Create a new parser object.
170 yaml_parser_initialize(yaml_parser_t *parser)
172 assert(parser); /* Non-NULL parser object expected. */
174 memset(parser, 0, sizeof(yaml_parser_t));
175 if (!BUFFER_INIT(parser, parser->raw_buffer, INPUT_RAW_BUFFER_SIZE))
177 if (!BUFFER_INIT(parser, parser->buffer, INPUT_BUFFER_SIZE))
179 if (!QUEUE_INIT(parser, parser->tokens, INITIAL_QUEUE_SIZE))
181 if (!STACK_INIT(parser, parser->indents, INITIAL_STACK_SIZE))
183 if (!STACK_INIT(parser, parser->simple_keys, INITIAL_STACK_SIZE))
185 if (!STACK_INIT(parser, parser->states, INITIAL_STACK_SIZE))
187 if (!STACK_INIT(parser, parser->marks, INITIAL_STACK_SIZE))
189 if (!STACK_INIT(parser, parser->tag_directives, INITIAL_STACK_SIZE))
196 BUFFER_DEL(parser, parser->raw_buffer);
197 BUFFER_DEL(parser, parser->buffer);
198 QUEUE_DEL(parser, parser->tokens);
199 STACK_DEL(parser, parser->indents);
200 STACK_DEL(parser, parser->simple_keys);
201 STACK_DEL(parser, parser->states);
202 STACK_DEL(parser, parser->marks);
203 STACK_DEL(parser, parser->tag_directives);
209 * Destroy a parser object.
213 yaml_parser_delete(yaml_parser_t *parser)
215 assert(parser); /* Non-NULL parser object expected. */
217 BUFFER_DEL(parser, parser->raw_buffer);
218 BUFFER_DEL(parser, parser->buffer);
219 while (!QUEUE_EMPTY(parser, parser->tokens)) {
220 yaml_token_delete(&DEQUEUE(parser, parser->tokens));
222 QUEUE_DEL(parser, parser->tokens);
223 STACK_DEL(parser, parser->indents);
224 STACK_DEL(parser, parser->simple_keys);
225 STACK_DEL(parser, parser->states);
226 STACK_DEL(parser, parser->marks);
227 while (!STACK_EMPTY(parser, parser->tag_directives)) {
228 yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives);
229 yaml_free(tag_directive.handle);
230 yaml_free(tag_directive.prefix);
232 STACK_DEL(parser, parser->tag_directives);
234 memset(parser, 0, sizeof(yaml_parser_t));
238 * String read handler.
242 yaml_string_read_handler(void *data, unsigned char *buffer, size_t size,
245 yaml_parser_t *parser = data;
247 if (parser->input.string.current == parser->input.string.end) {
252 if (size > (parser->input.string.end - parser->input.string.current)) {
253 size = parser->input.string.end - parser->input.string.current;
256 memcpy(buffer, parser->input.string.current, size);
257 parser->input.string.current += size;
267 yaml_file_read_handler(void *data, unsigned char *buffer, size_t size,
270 yaml_parser_t *parser = data;
272 *size_read = fread(buffer, 1, size, parser->input.file);
273 return !ferror(parser->input.file);
277 * Set a string input.
281 yaml_parser_set_input_string(yaml_parser_t *parser,
282 const unsigned char *input, size_t size)
284 assert(parser); /* Non-NULL parser object expected. */
285 assert(!parser->read_handler); /* You can set the source only once. */
286 assert(input); /* Non-NULL input string expected. */
288 parser->read_handler = yaml_string_read_handler;
289 parser->read_handler_data = parser;
291 parser->input.string.start = input;
292 parser->input.string.current = input;
293 parser->input.string.end = input+size;
301 yaml_parser_set_input_file(yaml_parser_t *parser, FILE *file)
303 assert(parser); /* Non-NULL parser object expected. */
304 assert(!parser->read_handler); /* You can set the source only once. */
305 assert(file); /* Non-NULL file object expected. */
307 parser->read_handler = yaml_file_read_handler;
308 parser->read_handler_data = parser;
310 parser->input.file = file;
314 * Set a generic input.
318 yaml_parser_set_input(yaml_parser_t *parser,
319 yaml_read_handler_t *handler, void *data)
321 assert(parser); /* Non-NULL parser object expected. */
322 assert(!parser->read_handler); /* You can set the source only once. */
323 assert(handler); /* Non-NULL read handler expected. */
325 parser->read_handler = handler;
326 parser->read_handler_data = data;
330 * Set the source encoding.
334 yaml_parser_set_encoding(yaml_parser_t *parser, yaml_encoding_t encoding)
336 assert(parser); /* Non-NULL parser object expected. */
337 assert(!parser->encoding); /* Encoding is already set or detected. */
339 parser->encoding = encoding;
343 * Create a new emitter object.
347 yaml_emitter_initialize(yaml_emitter_t *emitter)
349 assert(emitter); /* Non-NULL emitter object expected. */
351 memset(emitter, 0, sizeof(yaml_emitter_t));
352 if (!BUFFER_INIT(emitter, emitter->buffer, OUTPUT_BUFFER_SIZE))
354 if (!BUFFER_INIT(emitter, emitter->raw_buffer, OUTPUT_RAW_BUFFER_SIZE))
356 if (!STACK_INIT(emitter, emitter->states, INITIAL_STACK_SIZE))
358 if (!QUEUE_INIT(emitter, emitter->events, INITIAL_QUEUE_SIZE))
360 if (!STACK_INIT(emitter, emitter->indents, INITIAL_STACK_SIZE))
362 if (!STACK_INIT(emitter, emitter->tag_directives, INITIAL_STACK_SIZE))
369 BUFFER_DEL(emitter, emitter->buffer);
370 BUFFER_DEL(emitter, emitter->raw_buffer);
371 STACK_DEL(emitter, emitter->states);
372 QUEUE_DEL(emitter, emitter->events);
373 STACK_DEL(emitter, emitter->indents);
374 STACK_DEL(emitter, emitter->tag_directives);
380 * Destroy an emitter object.
384 yaml_emitter_delete(yaml_emitter_t *emitter)
386 assert(emitter); /* Non-NULL emitter object expected. */
388 BUFFER_DEL(emitter, emitter->buffer);
389 BUFFER_DEL(emitter, emitter->raw_buffer);
390 STACK_DEL(emitter, emitter->states);
391 while (!QUEUE_EMPTY(emitter, emitter->events)) {
392 yaml_event_delete(&DEQUEUE(emitter, emitter->events));
394 QUEUE_DEL(emitter, emitter->events);
395 STACK_DEL(emitter, emitter->indents);
396 while (!STACK_EMPTY(empty, emitter->tag_directives)) {
397 yaml_tag_directive_t tag_directive = POP(emitter, emitter->tag_directives);
398 yaml_free(tag_directive.handle);
399 yaml_free(tag_directive.prefix);
401 STACK_DEL(emitter, emitter->tag_directives);
403 memset(emitter, 0, sizeof(yaml_emitter_t));
407 * String write handler.
411 yaml_string_write_handler(void *data, unsigned char *buffer, size_t size)
413 yaml_emitter_t *emitter = data;
415 if (emitter->output.string.size + *emitter->output.string.size_written
417 memcpy(emitter->output.string.buffer
418 + *emitter->output.string.size_written,
420 emitter->output.string.size
421 - *emitter->output.string.size_written);
422 *emitter->output.string.size_written = emitter->output.string.size;
426 memcpy(emitter->output.string.buffer
427 + *emitter->output.string.size_written, buffer, size);
428 *emitter->output.string.size_written += size;
433 * File write handler.
437 yaml_file_write_handler(void *data, unsigned char *buffer, size_t size)
439 yaml_emitter_t *emitter = data;
441 return (fwrite(buffer, 1, size, emitter->output.file) == size);
444 * Set a string output.
448 yaml_emitter_set_output_string(yaml_emitter_t *emitter,
449 unsigned char *output, size_t size, size_t *size_written)
451 assert(emitter); /* Non-NULL emitter object expected. */
452 assert(!emitter->write_handler); /* You can set the output only once. */
453 assert(output); /* Non-NULL output string expected. */
455 emitter->write_handler = yaml_string_write_handler;
456 emitter->write_handler_data = emitter;
458 emitter->output.string.buffer = output;
459 emitter->output.string.size = size;
460 emitter->output.string.size_written = size_written;
469 yaml_emitter_set_output_file(yaml_emitter_t *emitter, FILE *file)
471 assert(emitter); /* Non-NULL emitter object expected. */
472 assert(!emitter->write_handler); /* You can set the output only once. */
473 assert(file); /* Non-NULL file object expected. */
475 emitter->write_handler = yaml_file_write_handler;
476 emitter->write_handler_data = emitter;
478 emitter->output.file = file;
482 * Set a generic output handler.
486 yaml_emitter_set_output(yaml_emitter_t *emitter,
487 yaml_write_handler_t *handler, void *data)
489 assert(emitter); /* Non-NULL emitter object expected. */
490 assert(!emitter->write_handler); /* You can set the output only once. */
491 assert(handler); /* Non-NULL handler object expected. */
493 emitter->write_handler = handler;
494 emitter->write_handler_data = data;
498 * Set the output encoding.
502 yaml_emitter_set_encoding(yaml_emitter_t *emitter, yaml_encoding_t encoding)
504 assert(emitter); /* Non-NULL emitter object expected. */
505 assert(!emitter->encoding); /* You can set encoding only once. */
507 emitter->encoding = encoding;
511 * Set the canonical output style.
515 yaml_emitter_set_canonical(yaml_emitter_t *emitter, int canonical)
517 assert(emitter); /* Non-NULL emitter object expected. */
519 emitter->canonical = (canonical != 0);
523 * Set the indentation increment.
527 yaml_emitter_set_indent(yaml_emitter_t *emitter, int indent)
529 assert(emitter); /* Non-NULL emitter object expected. */
531 emitter->best_indent = (1 < indent && indent < 10) ? indent : 2;
535 * Set the preferred line width.
539 yaml_emitter_set_width(yaml_emitter_t *emitter, int width)
541 assert(emitter); /* Non-NULL emitter object expected. */
543 emitter->best_width = (width >= 0) ? width : -1;
547 * Set if unescaped non-ASCII characters are allowed.
551 yaml_emitter_set_unicode(yaml_emitter_t *emitter, int unicode)
553 assert(emitter); /* Non-NULL emitter object expected. */
555 emitter->unicode = (unicode != 0);
559 * Set the preferred line break character.
563 yaml_emitter_set_break(yaml_emitter_t *emitter, yaml_break_t line_break)
565 assert(emitter); /* Non-NULL emitter object expected. */
567 emitter->line_break = line_break;
571 * Destroy a token object.
575 yaml_token_delete(yaml_token_t *token)
577 assert(token); /* Non-NULL token object expected. */
581 case YAML_TAG_DIRECTIVE_TOKEN:
582 yaml_free(token->data.tag_directive.handle);
583 yaml_free(token->data.tag_directive.prefix);
586 case YAML_ALIAS_TOKEN:
587 yaml_free(token->data.alias.value);
590 case YAML_ANCHOR_TOKEN:
591 yaml_free(token->data.anchor.value);
595 yaml_free(token->data.tag.handle);
596 yaml_free(token->data.tag.suffix);
599 case YAML_SCALAR_TOKEN:
600 yaml_free(token->data.scalar.value);
607 memset(token, 0, sizeof(yaml_token_t));
611 * Check if a string is a valid UTF-8 sequence.
613 * Check 'reader.c' for more details on UTF-8 encoding.
617 yaml_check_utf8(yaml_char_t *start, size_t length)
619 yaml_char_t *end = start+length;
620 yaml_char_t *pointer = start;
622 while (pointer < end) {
629 width = (octet & 0x80) == 0x00 ? 1 :
630 (octet & 0xE0) == 0xC0 ? 2 :
631 (octet & 0xF0) == 0xE0 ? 3 :
632 (octet & 0xF8) == 0xF0 ? 4 : 0;
633 value = (octet & 0x80) == 0x00 ? octet & 0x7F :
634 (octet & 0xE0) == 0xC0 ? octet & 0x1F :
635 (octet & 0xF0) == 0xE0 ? octet & 0x0F :
636 (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
637 if (!width) return 0;
638 if (pointer+width > end) return 0;
639 for (k = 1; k < width; k ++) {
641 if ((octet & 0xC0) != 0x80) return 0;
642 value = (value << 6) + (octet & 0x3F);
644 if (!((width == 1) ||
645 (width == 2 && value >= 0x80) ||
646 (width == 3 && value >= 0x800) ||
647 (width == 4 && value >= 0x10000))) return 0;
656 * Create STREAM-START.
660 yaml_stream_start_event_initialize(yaml_event_t *event,
661 yaml_encoding_t encoding)
663 yaml_mark_t mark = { 0, 0, 0 };
665 assert(event); /* Non-NULL event object is expected. */
667 STREAM_START_EVENT_INIT(*event, encoding, mark, mark);
677 yaml_stream_end_event_initialize(yaml_event_t *event)
679 yaml_mark_t mark = { 0, 0, 0 };
681 assert(event); /* Non-NULL event object is expected. */
683 STREAM_END_EVENT_INIT(*event, mark, mark);
689 * Create DOCUMENT-START.
693 yaml_document_start_event_initialize(yaml_event_t *event,
694 yaml_version_directive_t *version_directive,
695 yaml_tag_directive_t *tag_directives_start,
696 yaml_tag_directive_t *tag_directives_end,
700 yaml_error_type_t error;
702 yaml_mark_t mark = { 0, 0, 0 };
703 yaml_version_directive_t *version_directive_copy = NULL;
705 yaml_tag_directive_t *start;
706 yaml_tag_directive_t *end;
707 yaml_tag_directive_t *top;
708 } tag_directives_copy = { NULL, NULL, NULL };
709 yaml_tag_directive_t value = { NULL, NULL };
711 assert(event); /* Non-NULL event object is expected. */
712 assert((tag_directives_start && tag_directives_end) ||
713 (tag_directives_start == tag_directives_end));
714 /* Valid tag directives are expected. */
716 if (version_directive) {
717 version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t));
718 if (!version_directive_copy) goto error;
719 version_directive_copy->major = version_directive->major;
720 version_directive_copy->minor = version_directive->minor;
723 if (tag_directives_start != tag_directives_end) {
724 yaml_tag_directive_t *tag_directive;
725 if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
727 for (tag_directive = tag_directives_start;
728 tag_directive != tag_directives_end; tag_directive ++) {
729 assert(tag_directive->handle);
730 assert(tag_directive->prefix);
731 if (!yaml_check_utf8(tag_directive->handle,
732 strlen((char *)tag_directive->handle)))
734 if (!yaml_check_utf8(tag_directive->prefix,
735 strlen((char *)tag_directive->prefix)))
737 value.handle = yaml_strdup(tag_directive->handle);
738 value.prefix = yaml_strdup(tag_directive->prefix);
739 if (!value.handle || !value.prefix) goto error;
740 if (!PUSH(&context, tag_directives_copy, value))
747 DOCUMENT_START_EVENT_INIT(*event, version_directive_copy,
748 tag_directives_copy.start, tag_directives_copy.top,
749 implicit, mark, mark);
754 yaml_free(version_directive_copy);
755 while (!STACK_EMPTY(context, tag_directives_copy)) {
756 yaml_tag_directive_t value = POP(context, tag_directives_copy);
757 yaml_free(value.handle);
758 yaml_free(value.prefix);
760 STACK_DEL(context, tag_directives_copy);
761 yaml_free(value.handle);
762 yaml_free(value.prefix);
768 * Create DOCUMENT-END.
772 yaml_document_end_event_initialize(yaml_event_t *event, int implicit)
774 yaml_mark_t mark = { 0, 0, 0 };
776 assert(event); /* Non-NULL emitter object is expected. */
778 DOCUMENT_END_EVENT_INIT(*event, implicit, mark, mark);
788 yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor)
790 yaml_mark_t mark = { 0, 0, 0 };
791 yaml_char_t *anchor_copy = NULL;
793 assert(event); /* Non-NULL event object is expected. */
794 assert(anchor); /* Non-NULL anchor is expected. */
796 if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0;
798 anchor_copy = yaml_strdup(anchor);
802 ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark);
812 yaml_scalar_event_initialize(yaml_event_t *event,
813 yaml_char_t *anchor, yaml_char_t *tag,
814 yaml_char_t *value, int length,
815 int plain_implicit, int quoted_implicit,
816 yaml_scalar_style_t style)
818 yaml_mark_t mark = { 0, 0, 0 };
819 yaml_char_t *anchor_copy = NULL;
820 yaml_char_t *tag_copy = NULL;
821 yaml_char_t *value_copy = NULL;
823 assert(event); /* Non-NULL event object is expected. */
824 assert(value); /* Non-NULL anchor is expected. */
827 if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
828 anchor_copy = yaml_strdup(anchor);
829 if (!anchor_copy) goto error;
833 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
834 tag_copy = yaml_strdup(tag);
835 if (!tag_copy) goto error;
839 length = strlen((char *)value);
842 if (!yaml_check_utf8(value, length)) goto error;
843 value_copy = yaml_malloc(length+1);
844 if (!value_copy) goto error;
845 memcpy(value_copy, value, length);
846 value_copy[length] = '\0';
848 SCALAR_EVENT_INIT(*event, anchor_copy, tag_copy, value_copy, length,
849 plain_implicit, quoted_implicit, style, mark, mark);
854 yaml_free(anchor_copy);
856 yaml_free(value_copy);
862 * Create SEQUENCE-START.
866 yaml_sequence_start_event_initialize(yaml_event_t *event,
867 yaml_char_t *anchor, yaml_char_t *tag, int implicit,
868 yaml_sequence_style_t style)
870 yaml_mark_t mark = { 0, 0, 0 };
871 yaml_char_t *anchor_copy = NULL;
872 yaml_char_t *tag_copy = NULL;
874 assert(event); /* Non-NULL event object is expected. */
877 if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
878 anchor_copy = yaml_strdup(anchor);
879 if (!anchor_copy) goto error;
883 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
884 tag_copy = yaml_strdup(tag);
885 if (!tag_copy) goto error;
888 SEQUENCE_START_EVENT_INIT(*event, anchor_copy, tag_copy,
889 implicit, style, mark, mark);
894 yaml_free(anchor_copy);
901 * Create SEQUENCE-END.
905 yaml_sequence_end_event_initialize(yaml_event_t *event)
907 yaml_mark_t mark = { 0, 0, 0 };
909 assert(event); /* Non-NULL event object is expected. */
911 SEQUENCE_END_EVENT_INIT(*event, mark, mark);
917 * Create MAPPING-START.
921 yaml_mapping_start_event_initialize(yaml_event_t *event,
922 yaml_char_t *anchor, yaml_char_t *tag, int implicit,
923 yaml_mapping_style_t style)
925 yaml_mark_t mark = { 0, 0, 0 };
926 yaml_char_t *anchor_copy = NULL;
927 yaml_char_t *tag_copy = NULL;
929 assert(event); /* Non-NULL event object is expected. */
932 if (!yaml_check_utf8(anchor, strlen((char *)anchor))) goto error;
933 anchor_copy = yaml_strdup(anchor);
934 if (!anchor_copy) goto error;
938 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
939 tag_copy = yaml_strdup(tag);
940 if (!tag_copy) goto error;
943 MAPPING_START_EVENT_INIT(*event, anchor_copy, tag_copy,
944 implicit, style, mark, mark);
949 yaml_free(anchor_copy);
956 * Create MAPPING-END.
960 yaml_mapping_end_event_initialize(yaml_event_t *event)
962 yaml_mark_t mark = { 0, 0, 0 };
964 assert(event); /* Non-NULL event object is expected. */
966 MAPPING_END_EVENT_INIT(*event, mark, mark);
972 * Destroy an event object.
976 yaml_event_delete(yaml_event_t *event)
978 yaml_tag_directive_t *tag_directive;
980 assert(event); /* Non-NULL event object expected. */
984 case YAML_DOCUMENT_START_EVENT:
985 yaml_free(event->data.document_start.version_directive);
986 for (tag_directive = event->data.document_start.tag_directives.start;
987 tag_directive != event->data.document_start.tag_directives.end;
989 yaml_free(tag_directive->handle);
990 yaml_free(tag_directive->prefix);
992 yaml_free(event->data.document_start.tag_directives.start);
995 case YAML_ALIAS_EVENT:
996 yaml_free(event->data.alias.anchor);
999 case YAML_SCALAR_EVENT:
1000 yaml_free(event->data.scalar.anchor);
1001 yaml_free(event->data.scalar.tag);
1002 yaml_free(event->data.scalar.value);
1005 case YAML_SEQUENCE_START_EVENT:
1006 yaml_free(event->data.sequence_start.anchor);
1007 yaml_free(event->data.sequence_start.tag);
1010 case YAML_MAPPING_START_EVENT:
1011 yaml_free(event->data.mapping_start.anchor);
1012 yaml_free(event->data.mapping_start.tag);
1019 memset(event, 0, sizeof(yaml_event_t));
1025 * Create a SCALAR node.
1029 yaml_scalar_node_initialize(yaml_node_t *node,
1030 yaml_char_t *tag, yaml_char_t *value, int length,
1031 yaml_scalar_style_t style)
1033 yaml_mark_t mark = { 0, 0, 0 };
1034 yaml_char_t *tag_copy = NULL;
1035 yaml_char_t *value_copy = NULL;
1037 assert(node); /* Non-NULL node object is expected. */
1038 assert(value); /* Non-NULL anchor is expected. */
1041 tag = YAML_DEFAULT_SCALAR_TAG;
1044 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
1045 tag_copy = yaml_strdup(tag);
1046 if (!tag_copy) goto error;
1049 length = strlen((char *)value);
1052 if (!yaml_check_utf8(value, length)) goto error;
1053 value_copy = yaml_malloc(length+1);
1054 if (!value_copy) goto error;
1055 memcpy(value_copy, value, length);
1056 value_copy[length] = '\0';
1058 SCALAR_NODE_INIT(*node, tag_copy, value_copy, length, style, mark, mark);
1063 yaml_free(tag_copy);
1064 yaml_free(value_copy);
1070 * Create a SEQUENCE node.
1074 yaml_sequence_node_initialize(yaml_node_t *node,
1075 yaml_char_t *tag, yaml_sequence_style_t style)
1078 yaml_error_type_t error;
1080 yaml_mark_t mark = { 0, 0, 0 };
1081 yaml_char_t *tag_copy = NULL;
1083 yaml_node_item_t *start;
1084 yaml_node_item_t *end;
1085 yaml_node_item_t *top;
1086 } items = { NULL, NULL, NULL };
1088 assert(node); /* Non-NULL node object is expected. */
1091 tag = YAML_DEFAULT_SEQUENCE_TAG;
1095 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
1096 tag_copy = yaml_strdup(tag);
1097 if (!tag_copy) goto error;
1100 if (!STACK_INIT(context, items, INITIAL_STACK_SIZE)) goto error;
1102 SEQUENCE_NODE_INIT(*node, tag_copy, items.start, item.end, style,
1108 yaml_free(tag_copy);
1109 STACK_DEL(context, items);
1115 * Create a MAPPING node.
1119 yaml_mapping_node_initialize(yaml_node_t *node,
1120 yaml_char_t *tag, yaml_mapping_style_t style)
1123 yaml_error_type_t error;
1125 yaml_mark_t mark = { 0, 0, 0 };
1126 yaml_char_t *tag_copy = NULL;
1128 yaml_node_pair_t *start;
1129 yaml_node_pair_t *end;
1130 yaml_node_pair_t *top;
1131 } pairs = { NULL, NULL, NULL };
1133 assert(node); /* Non-NULL node object is expected. */
1136 tag = YAML_DEFAULT_MAPPING_TAG;
1140 if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error;
1141 tag_copy = yaml_strdup(tag);
1142 if (!tag_copy) goto error;
1145 if (!STACK_INIT(context, pairs, INITIAL_STACK_SIZE)) goto error;
1147 MAPPING_NODE_INIT(*node, tag_copy, pairs.start, pairs.end, style,
1153 yaml_free(tag_copy);
1154 STACK_DEL(context, pairs);
1160 * Delete a node and its subnodes.
1164 yaml_node_delete(yaml_node_t *node)
1167 yaml_error_type_t error;
1170 yaml_node_item_t *start;
1171 yaml_node_item_t *end;
1172 yaml_node_item_t *head;
1173 yaml_node_item_t *tail;
1174 } queue = { NULL, NULL, NULL, NULL };
1176 assert(node); /* Non-NULL node object is expected. */
1178 if (node->type == YAML_SCALAR_NODE) {
1179 yaml_free(node->data.scalar.tag);
1180 yaml_free(node->data.scalar.value);
1181 memset(node, 0, sizeof(yaml_node_t));
1185 if (!QUEUE_INIT(context, queue, INITIAL_QUEUE_SIZE)) goto error;
1186 if (!ENQUEUE(context, queue, node)) goto error;
1188 while (!QUEUE_EMPTY(context, queue)) {
1189 yaml_node_t node = DEQUEUE(context, queue);
1190 if (node.type == YAML_SCALAR_NODE) {
1191 if (!node->reference)
1193 if (node->type == YAML_SEQUENCE_NODE) {
1194 while (!STACK_EMPTY(context, node->data.sequence.items)) {