8
func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) {
9
//fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens))
11
// Check if we can move the queue at the beginning of the buffer.
12
if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) {
13
if parser.tokens_head != len(parser.tokens) {
14
copy(parser.tokens, parser.tokens[parser.tokens_head:])
16
parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head]
17
parser.tokens_head = 0
19
parser.tokens = append(parser.tokens, *token)
23
copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:])
24
parser.tokens[parser.tokens_head+pos] = *token
27
// Create a new parser object.
28
func yaml_parser_initialize(parser *yaml_parser_t) bool {
29
*parser = yaml_parser_t{
30
raw_buffer: make([]byte, 0, input_raw_buffer_size),
31
buffer: make([]byte, 0, input_buffer_size),
36
// Destroy a parser object.
37
func yaml_parser_delete(parser *yaml_parser_t) {
38
*parser = yaml_parser_t{}
41
// String read handler.
42
func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
43
if parser.input_pos == len(parser.input) {
46
n = copy(buffer, parser.input[parser.input_pos:])
52
func yaml_file_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) {
53
return parser.input_file.Read(buffer)
56
// Set a string input.
57
func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) {
58
if parser.read_handler != nil {
59
panic("must set the input source only once")
61
parser.read_handler = yaml_string_read_handler
67
func yaml_parser_set_input_file(parser *yaml_parser_t, file *os.File) {
68
if parser.read_handler != nil {
69
panic("must set the input source only once")
71
parser.read_handler = yaml_file_read_handler
72
parser.input_file = file
75
// Set the source encoding.
76
func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) {
77
if parser.encoding != yaml_ANY_ENCODING {
78
panic("must set the encoding only once")
80
parser.encoding = encoding
83
// Create a new emitter object.
84
func yaml_emitter_initialize(emitter *yaml_emitter_t) bool {
85
*emitter = yaml_emitter_t{
86
buffer: make([]byte, output_buffer_size),
87
raw_buffer: make([]byte, 0, output_raw_buffer_size),
88
states: make([]yaml_emitter_state_t, 0, initial_stack_size),
89
events: make([]yaml_event_t, 0, initial_queue_size),
94
// Destroy an emitter object.
95
func yaml_emitter_delete(emitter *yaml_emitter_t) {
96
*emitter = yaml_emitter_t{}
99
// String write handler.
100
func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
101
*emitter.output_buffer = append(*emitter.output_buffer, buffer...)
105
// File write handler.
106
func yaml_file_write_handler(emitter *yaml_emitter_t, buffer []byte) error {
107
_, err := emitter.output_file.Write(buffer)
111
// Set a string output.
112
func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) {
113
if emitter.write_handler != nil {
114
panic("must set the output target only once")
116
emitter.write_handler = yaml_string_write_handler
117
emitter.output_buffer = output_buffer
120
// Set a file output.
121
func yaml_emitter_set_output_file(emitter *yaml_emitter_t, file io.Writer) {
122
if emitter.write_handler != nil {
123
panic("must set the output target only once")
125
emitter.write_handler = yaml_file_write_handler
126
emitter.output_file = file
129
// Set the output encoding.
130
func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) {
131
if emitter.encoding != yaml_ANY_ENCODING {
132
panic("must set the output encoding only once")
134
emitter.encoding = encoding
137
// Set the canonical output style.
138
func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) {
139
emitter.canonical = canonical
142
//// Set the indentation increment.
143
func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) {
144
if indent < 2 || indent > 9 {
147
emitter.best_indent = indent
150
// Set the preferred line width.
151
func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) {
155
emitter.best_width = width
158
// Set if unescaped non-ASCII characters are allowed.
159
func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) {
160
emitter.unicode = unicode
163
// Set the preferred line break character.
164
func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) {
165
emitter.line_break = line_break
169
// * Destroy a token object.
173
//yaml_token_delete(yaml_token_t *token)
175
// assert(token); // Non-NULL token object expected.
177
// switch (token.type)
179
// case YAML_TAG_DIRECTIVE_TOKEN:
180
// yaml_free(token.data.tag_directive.handle);
181
// yaml_free(token.data.tag_directive.prefix);
184
// case YAML_ALIAS_TOKEN:
185
// yaml_free(token.data.alias.value);
188
// case YAML_ANCHOR_TOKEN:
189
// yaml_free(token.data.anchor.value);
192
// case YAML_TAG_TOKEN:
193
// yaml_free(token.data.tag.handle);
194
// yaml_free(token.data.tag.suffix);
197
// case YAML_SCALAR_TOKEN:
198
// yaml_free(token.data.scalar.value);
205
// memset(token, 0, sizeof(yaml_token_t));
209
// * Check if a string is a valid UTF-8 sequence.
211
// * Check 'reader.c' for more details on UTF-8 encoding.
215
//yaml_check_utf8(yaml_char_t *start, size_t length)
217
// yaml_char_t *end = start+length;
218
// yaml_char_t *pointer = start;
220
// while (pointer < end) {
221
// unsigned char octet;
222
// unsigned int width;
223
// unsigned int value;
226
// octet = pointer[0];
227
// width = (octet & 0x80) == 0x00 ? 1 :
228
// (octet & 0xE0) == 0xC0 ? 2 :
229
// (octet & 0xF0) == 0xE0 ? 3 :
230
// (octet & 0xF8) == 0xF0 ? 4 : 0;
231
// value = (octet & 0x80) == 0x00 ? octet & 0x7F :
232
// (octet & 0xE0) == 0xC0 ? octet & 0x1F :
233
// (octet & 0xF0) == 0xE0 ? octet & 0x0F :
234
// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0;
235
// if (!width) return 0;
236
// if (pointer+width > end) return 0;
237
// for (k = 1; k < width; k ++) {
238
// octet = pointer[k];
239
// if ((octet & 0xC0) != 0x80) return 0;
240
// value = (value << 6) + (octet & 0x3F);
242
// if (!((width == 1) ||
243
// (width == 2 && value >= 0x80) ||
244
// (width == 3 && value >= 0x800) ||
245
// (width == 4 && value >= 0x10000))) return 0;
254
// Create STREAM-START.
255
func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) bool {
256
*event = yaml_event_t{
257
typ: yaml_STREAM_START_EVENT,
263
// Create STREAM-END.
264
func yaml_stream_end_event_initialize(event *yaml_event_t) bool {
265
*event = yaml_event_t{
266
typ: yaml_STREAM_END_EVENT,
271
// Create DOCUMENT-START.
272
func yaml_document_start_event_initialize(event *yaml_event_t, version_directive *yaml_version_directive_t,
273
tag_directives []yaml_tag_directive_t, implicit bool) bool {
274
*event = yaml_event_t{
275
typ: yaml_DOCUMENT_START_EVENT,
276
version_directive: version_directive,
277
tag_directives: tag_directives,
283
// Create DOCUMENT-END.
284
func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) bool {
285
*event = yaml_event_t{
286
typ: yaml_DOCUMENT_END_EVENT,
297
//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t)
299
// mark yaml_mark_t = { 0, 0, 0 }
300
// anchor_copy *yaml_char_t = NULL
302
// assert(event) // Non-NULL event object is expected.
303
// assert(anchor) // Non-NULL anchor is expected.
305
// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0
307
// anchor_copy = yaml_strdup(anchor)
311
// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark)
317
func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool {
318
*event = yaml_event_t{
319
typ: yaml_SCALAR_EVENT,
323
implicit: plain_implicit,
324
quoted_implicit: quoted_implicit,
325
style: yaml_style_t(style),
330
// Create SEQUENCE-START.
331
func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool {
332
*event = yaml_event_t{
333
typ: yaml_SEQUENCE_START_EVENT,
337
style: yaml_style_t(style),
342
// Create SEQUENCE-END.
343
func yaml_sequence_end_event_initialize(event *yaml_event_t) bool {
344
*event = yaml_event_t{
345
typ: yaml_SEQUENCE_END_EVENT,
350
// Create MAPPING-START.
351
func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) bool {
352
*event = yaml_event_t{
353
typ: yaml_MAPPING_START_EVENT,
357
style: yaml_style_t(style),
362
// Create MAPPING-END.
363
func yaml_mapping_end_event_initialize(event *yaml_event_t) bool {
364
*event = yaml_event_t{
365
typ: yaml_MAPPING_END_EVENT,
370
// Destroy an event object.
371
func yaml_event_delete(event *yaml_event_t) {
372
*event = yaml_event_t{}
376
// * Create a document object.
380
//yaml_document_initialize(document *yaml_document_t,
381
// version_directive *yaml_version_directive_t,
382
// tag_directives_start *yaml_tag_directive_t,
383
// tag_directives_end *yaml_tag_directive_t,
384
// start_implicit int, end_implicit int)
387
// error yaml_error_type_t
390
// start *yaml_node_t
393
// } nodes = { NULL, NULL, NULL }
394
// version_directive_copy *yaml_version_directive_t = NULL
396
// start *yaml_tag_directive_t
397
// end *yaml_tag_directive_t
398
// top *yaml_tag_directive_t
399
// } tag_directives_copy = { NULL, NULL, NULL }
400
// value yaml_tag_directive_t = { NULL, NULL }
401
// mark yaml_mark_t = { 0, 0, 0 }
403
// assert(document) // Non-NULL document object is expected.
404
// assert((tag_directives_start && tag_directives_end) ||
405
// (tag_directives_start == tag_directives_end))
406
// // Valid tag directives are expected.
408
// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error
410
// if (version_directive) {
411
// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t))
412
// if (!version_directive_copy) goto error
413
// version_directive_copy.major = version_directive.major
414
// version_directive_copy.minor = version_directive.minor
417
// if (tag_directives_start != tag_directives_end) {
418
// tag_directive *yaml_tag_directive_t
419
// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE))
421
// for (tag_directive = tag_directives_start
422
// tag_directive != tag_directives_end; tag_directive ++) {
423
// assert(tag_directive.handle)
424
// assert(tag_directive.prefix)
425
// if (!yaml_check_utf8(tag_directive.handle,
426
// strlen((char *)tag_directive.handle)))
428
// if (!yaml_check_utf8(tag_directive.prefix,
429
// strlen((char *)tag_directive.prefix)))
431
// value.handle = yaml_strdup(tag_directive.handle)
432
// value.prefix = yaml_strdup(tag_directive.prefix)
433
// if (!value.handle || !value.prefix) goto error
434
// if (!PUSH(&context, tag_directives_copy, value))
436
// value.handle = NULL
437
// value.prefix = NULL
441
// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy,
442
// tag_directives_copy.start, tag_directives_copy.top,
443
// start_implicit, end_implicit, mark, mark)
448
// STACK_DEL(&context, nodes)
449
// yaml_free(version_directive_copy)
450
// while (!STACK_EMPTY(&context, tag_directives_copy)) {
451
// value yaml_tag_directive_t = POP(&context, tag_directives_copy)
452
// yaml_free(value.handle)
453
// yaml_free(value.prefix)
455
// STACK_DEL(&context, tag_directives_copy)
456
// yaml_free(value.handle)
457
// yaml_free(value.prefix)
463
// * Destroy a document object.
467
//yaml_document_delete(document *yaml_document_t)
470
// error yaml_error_type_t
472
// tag_directive *yaml_tag_directive_t
474
// context.error = YAML_NO_ERROR // Eliminate a compliler warning.
476
// assert(document) // Non-NULL document object is expected.
478
// while (!STACK_EMPTY(&context, document.nodes)) {
479
// node yaml_node_t = POP(&context, document.nodes)
480
// yaml_free(node.tag)
481
// switch (node.type) {
482
// case YAML_SCALAR_NODE:
483
// yaml_free(node.data.scalar.value)
485
// case YAML_SEQUENCE_NODE:
486
// STACK_DEL(&context, node.data.sequence.items)
488
// case YAML_MAPPING_NODE:
489
// STACK_DEL(&context, node.data.mapping.pairs)
492
// assert(0) // Should not happen.
495
// STACK_DEL(&context, document.nodes)
497
// yaml_free(document.version_directive)
498
// for (tag_directive = document.tag_directives.start
499
// tag_directive != document.tag_directives.end
500
// tag_directive++) {
501
// yaml_free(tag_directive.handle)
502
// yaml_free(tag_directive.prefix)
504
// yaml_free(document.tag_directives.start)
506
// memset(document, 0, sizeof(yaml_document_t))
510
// * Get a document node.
513
//YAML_DECLARE(yaml_node_t *)
514
//yaml_document_get_node(document *yaml_document_t, index int)
516
// assert(document) // Non-NULL document object is expected.
518
// if (index > 0 && document.nodes.start + index <= document.nodes.top) {
519
// return document.nodes.start + index - 1
525
// * Get the root object.
528
//YAML_DECLARE(yaml_node_t *)
529
//yaml_document_get_root_node(document *yaml_document_t)
531
// assert(document) // Non-NULL document object is expected.
533
// if (document.nodes.top != document.nodes.start) {
534
// return document.nodes.start
540
// * Add a scalar node to a document.
544
//yaml_document_add_scalar(document *yaml_document_t,
545
// tag *yaml_char_t, value *yaml_char_t, length int,
546
// style yaml_scalar_style_t)
549
// error yaml_error_type_t
551
// mark yaml_mark_t = { 0, 0, 0 }
552
// tag_copy *yaml_char_t = NULL
553
// value_copy *yaml_char_t = NULL
556
// assert(document) // Non-NULL document object is expected.
557
// assert(value) // Non-NULL value is expected.
560
// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG
563
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
564
// tag_copy = yaml_strdup(tag)
565
// if (!tag_copy) goto error
568
// length = strlen((char *)value)
571
// if (!yaml_check_utf8(value, length)) goto error
572
// value_copy = yaml_malloc(length+1)
573
// if (!value_copy) goto error
574
// memcpy(value_copy, value, length)
575
// value_copy[length] = '\0'
577
// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark)
578
// if (!PUSH(&context, document.nodes, node)) goto error
580
// return document.nodes.top - document.nodes.start
583
// yaml_free(tag_copy)
584
// yaml_free(value_copy)
590
// * Add a sequence node to a document.
594
//yaml_document_add_sequence(document *yaml_document_t,
595
// tag *yaml_char_t, style yaml_sequence_style_t)
598
// error yaml_error_type_t
600
// mark yaml_mark_t = { 0, 0, 0 }
601
// tag_copy *yaml_char_t = NULL
603
// start *yaml_node_item_t
604
// end *yaml_node_item_t
605
// top *yaml_node_item_t
606
// } items = { NULL, NULL, NULL }
609
// assert(document) // Non-NULL document object is expected.
612
// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG
615
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
616
// tag_copy = yaml_strdup(tag)
617
// if (!tag_copy) goto error
619
// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error
621
// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end,
622
// style, mark, mark)
623
// if (!PUSH(&context, document.nodes, node)) goto error
625
// return document.nodes.top - document.nodes.start
628
// STACK_DEL(&context, items)
629
// yaml_free(tag_copy)
635
// * Add a mapping node to a document.
639
//yaml_document_add_mapping(document *yaml_document_t,
640
// tag *yaml_char_t, style yaml_mapping_style_t)
643
// error yaml_error_type_t
645
// mark yaml_mark_t = { 0, 0, 0 }
646
// tag_copy *yaml_char_t = NULL
648
// start *yaml_node_pair_t
649
// end *yaml_node_pair_t
650
// top *yaml_node_pair_t
651
// } pairs = { NULL, NULL, NULL }
654
// assert(document) // Non-NULL document object is expected.
657
// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG
660
// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error
661
// tag_copy = yaml_strdup(tag)
662
// if (!tag_copy) goto error
664
// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error
666
// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end,
667
// style, mark, mark)
668
// if (!PUSH(&context, document.nodes, node)) goto error
670
// return document.nodes.top - document.nodes.start
673
// STACK_DEL(&context, pairs)
674
// yaml_free(tag_copy)
680
// * Append an item to a sequence node.
684
//yaml_document_append_sequence_item(document *yaml_document_t,
685
// sequence int, item int)
688
// error yaml_error_type_t
691
// assert(document) // Non-NULL document is required.
692
// assert(sequence > 0
693
// && document.nodes.start + sequence <= document.nodes.top)
694
// // Valid sequence id is required.
695
// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE)
696
// // A sequence node is required.
697
// assert(item > 0 && document.nodes.start + item <= document.nodes.top)
698
// // Valid item id is required.
700
// if (!PUSH(&context,
701
// document.nodes.start[sequence-1].data.sequence.items, item))
708
// * Append a pair of a key and a value to a mapping node.
712
//yaml_document_append_mapping_pair(document *yaml_document_t,
713
// mapping int, key int, value int)
716
// error yaml_error_type_t
719
// pair yaml_node_pair_t
721
// assert(document) // Non-NULL document is required.
722
// assert(mapping > 0
723
// && document.nodes.start + mapping <= document.nodes.top)
724
// // Valid mapping id is required.
725
// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE)
726
// // A mapping node is required.
727
// assert(key > 0 && document.nodes.start + key <= document.nodes.top)
728
// // Valid key id is required.
729
// assert(value > 0 && document.nodes.start + value <= document.nodes.top)
730
// // Valid value id is required.
733
// pair.value = value
735
// if (!PUSH(&context,
736
// document.nodes.start[mapping-1].data.mapping.pairs, pair))