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Commit | Line | Data |
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1eb01be7 KS |
1 | |
2 | /* | |
3 | * The parser implements the following grammar: | |
4 | * | |
5 | * stream ::= STREAM-START implicit_document? explicit_document* STREAM-END | |
6 | * implicit_document ::= block_node DOCUMENT-END* | |
7 | * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* | |
8 | * block_node_or_indentless_sequence ::= | |
9 | * ALIAS | |
10 | * | properties (block_content | indentless_block_sequence)? | |
11 | * | block_content | |
12 | * | indentless_block_sequence | |
13 | * block_node ::= ALIAS | |
14 | * | properties block_content? | |
15 | * | block_content | |
16 | * flow_node ::= ALIAS | |
17 | * | properties flow_content? | |
18 | * | flow_content | |
19 | * properties ::= TAG ANCHOR? | ANCHOR TAG? | |
20 | * block_content ::= block_collection | flow_collection | SCALAR | |
21 | * flow_content ::= flow_collection | SCALAR | |
22 | * block_collection ::= block_sequence | block_mapping | |
23 | * flow_collection ::= flow_sequence | flow_mapping | |
24 | * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END | |
25 | * indentless_sequence ::= (BLOCK-ENTRY block_node?)+ | |
26 | * block_mapping ::= BLOCK-MAPPING_START | |
27 | * ((KEY block_node_or_indentless_sequence?)? | |
28 | * (VALUE block_node_or_indentless_sequence?)?)* | |
29 | * BLOCK-END | |
30 | * flow_sequence ::= FLOW-SEQUENCE-START | |
31 | * (flow_sequence_entry FLOW-ENTRY)* | |
32 | * flow_sequence_entry? | |
33 | * FLOW-SEQUENCE-END | |
34 | * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
35 | * flow_mapping ::= FLOW-MAPPING-START | |
36 | * (flow_mapping_entry FLOW-ENTRY)* | |
37 | * flow_mapping_entry? | |
38 | * FLOW-MAPPING-END | |
39 | * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
40 | */ | |
41 | ||
625fcfe9 | 42 | #include "yaml_private.h" |
1eb01be7 | 43 | |
625fcfe9 KS |
44 | /* |
45 | * Event initializers. | |
46 | */ | |
1eb01be7 | 47 | |
625fcfe9 KS |
48 | #define EVENT_INIT(event,event_type,event_start_mark,event_end_mark) \ |
49 | (memset(&(event), 0, sizeof(yaml_event_t)), \ | |
50 | (event).type = (event_type), \ | |
51 | (event).start_mark = (event_start_mark), \ | |
52 | (event).end_mark = (event_end_mark)) | |
53 | ||
54 | #define STREAM_START_EVENT_INIT(event,event_encoding,start_mark,end_mark) \ | |
55 | (EVENT_INIT((event),YAML_STREAM_START_EVENT,(start_mark),(end_mark)), \ | |
56 | (event).data.stream_start.encoding = (event_encoding)) | |
57 | ||
58 | #define STREAM_END_EVENT_INIT(event,start_mark,end_mark) \ | |
59 | (EVENT_INIT((event),YAML_STREAM_END_EVENT,(start_mark),(end_mark))) | |
60 | ||
61 | #define DOCUMENT_START_EVENT_INIT(event,event_version_directive, \ | |
62 | event_tag_directives_start,event_tag_directives_end,event_implicit,start_mark,end_mark) \ | |
63 | (EVENT_INIT((event),YAML_DOCUMENT_START_EVENT,(start_mark),(end_mark)), \ | |
64 | (event).data.document_start.version_directive = (event_version_directive), \ | |
65 | (event).data.document_start.tag_directives.start = (event_tag_directives_start), \ | |
66 | (event).data.document_start.tag_directives.end = (event_tag_directives_end), \ | |
67 | (event).data.document_start.implicit = (event_implicit)) | |
68 | ||
69 | #define DOCUMENT_END_EVENT_INIT(event,event_implicit,start_mark,end_mark) \ | |
70 | (EVENT_INIT((event),YAML_DOCUMENT_END_EVENT,(start_mark),(end_mark)), \ | |
71 | (event).data.document_end.implicit = (event_implicit)) | |
72 | ||
73 | #define ALIAS_EVENT_INIT(event,event_anchor,start_mark,end_mark) \ | |
74 | (EVENT_INIT((event),YAML_ALIAS_EVENT,(start_mark),(end_mark)), \ | |
75 | (event).data.alias.anchor = (event_anchor)) | |
76 | ||
77 | #define SCALAR_EVENT_INIT(event,event_anchor,event_tag,event_value,event_length, \ | |
78 | event_plain_implicit, event_quoted_implicit,event_style,start_mark,end_mark) \ | |
79 | (EVENT_INIT((event),YAML_SCALAR_EVENT,(start_mark),(end_mark)), \ | |
80 | (event).data.scalar.anchor = (event_anchor), \ | |
81 | (event).data.scalar.tag = (event_tag), \ | |
82 | (event).data.scalar.value = (event_value), \ | |
83 | (event).data.scalar.length = (event_length), \ | |
84 | (event).data.scalar.plain_implicit = (event_plain_implicit), \ | |
85 | (event).data.scalar.quoted_implicit = (event_quoted_implicit), \ | |
86 | (event).data.scalar.style = (event_style)) | |
87 | ||
88 | #define SEQUENCE_START_EVENT_INIT(event,event_anchor,event_tag, \ | |
89 | event_implicit,event_style,start_mark,end_mark) \ | |
90 | (EVENT_INIT((event),YAML_SEQUENCE_START_EVENT,(start_mark),(end_mark)), \ | |
91 | (event).data.sequence_start.anchor = (event_anchor), \ | |
92 | (event).data.sequence_start.tag = (event_tag), \ | |
93 | (event).data.sequence_start.implicit = (event_implicit), \ | |
94 | (event).data.sequence_start.style = (event_style)) | |
95 | ||
96 | #define SEQUENCE_END_EVENT_INIT(event,start_mark,end_mark) \ | |
97 | (EVENT_INIT((event),YAML_SEQUENCE_END_EVENT,(start_mark),(end_mark))) | |
98 | ||
99 | #define MAPPING_START_EVENT_INIT(event,event_anchor,event_tag, \ | |
100 | event_implicit,event_style,start_mark,end_mark) \ | |
101 | (EVENT_INIT((event),YAML_MAPPING_START_EVENT,(start_mark),(end_mark)), \ | |
102 | (event).data.mapping_start.anchor = (event_anchor), \ | |
103 | (event).data.mapping_start.tag = (event_tag), \ | |
104 | (event).data.mapping_start.implicit = (event_implicit), \ | |
105 | (event).data.mapping_start.style = (event_style)) | |
106 | ||
107 | #define MAPPING_END_EVENT_INIT(event,start_mark,end_mark) \ | |
108 | (EVENT_INIT((event),YAML_MAPPING_END_EVENT,(start_mark),(end_mark))) | |
1eb01be7 KS |
109 | |
110 | /* | |
625fcfe9 | 111 | * Peek the next token in the token queue. |
1eb01be7 KS |
112 | */ |
113 | ||
625fcfe9 KS |
114 | #define PEEK_TOKEN(parser) \ |
115 | ((parser->token_available || yaml_parser_fetch_more_tokens(parser)) ? \ | |
116 | parser->tokens.head : NULL) | |
1eb01be7 | 117 | |
625fcfe9 KS |
118 | /* |
119 | * Remove the next token from the queue (must be called after PEEK_TOKEN). | |
120 | */ | |
121 | ||
122 | #define SKIP_TOKEN(parser) \ | |
123 | (parser->token_available = 0, \ | |
124 | parser->tokens_parsed ++, \ | |
125 | parser->stream_end_produced = \ | |
126 | (parser->tokens.head->type == YAML_STREAM_END_TOKEN), \ | |
127 | parser->tokens.head ++) | |
128 | ||
129 | /* | |
130 | * Public API declarations. | |
131 | */ | |
132 | ||
133 | YAML_DECLARE(int) | |
134 | yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event); | |
1eb01be7 | 135 | |
52fba2c6 KS |
136 | /* |
137 | * Error handling. | |
138 | */ | |
139 | ||
140 | static int | |
141 | yaml_parser_set_parser_error(yaml_parser_t *parser, | |
142 | const char *problem, yaml_mark_t problem_mark); | |
143 | ||
144 | static int | |
145 | yaml_parser_set_parser_error_context(yaml_parser_t *parser, | |
146 | const char *context, yaml_mark_t context_mark, | |
147 | const char *problem, yaml_mark_t problem_mark); | |
148 | ||
149 | /* | |
625fcfe9 | 150 | * State functions. |
52fba2c6 KS |
151 | */ |
152 | ||
153 | static int | |
625fcfe9 | 154 | yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event); |
52fba2c6 | 155 | |
ab01bac8 | 156 | static int |
625fcfe9 | 157 | yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event); |
ab01bac8 | 158 | |
52fba2c6 | 159 | static int |
625fcfe9 KS |
160 | yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, |
161 | int implicit); | |
52fba2c6 KS |
162 | |
163 | static int | |
625fcfe9 | 164 | yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event); |
1eb01be7 | 165 | |
625fcfe9 KS |
166 | static int |
167 | yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event); | |
1eb01be7 | 168 | |
625fcfe9 KS |
169 | static int |
170 | yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, | |
1eb01be7 KS |
171 | int block, int indentless_sequence); |
172 | ||
625fcfe9 KS |
173 | static int |
174 | yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, | |
175 | yaml_event_t *event, int first); | |
1eb01be7 | 176 | |
625fcfe9 KS |
177 | static int |
178 | yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, | |
179 | yaml_event_t *event); | |
1eb01be7 | 180 | |
625fcfe9 KS |
181 | static int |
182 | yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, | |
183 | yaml_event_t *event, int first); | |
1eb01be7 | 184 | |
625fcfe9 KS |
185 | static int |
186 | yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, | |
187 | yaml_event_t *event); | |
1eb01be7 | 188 | |
625fcfe9 KS |
189 | static int |
190 | yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, | |
191 | yaml_event_t *event, int first); | |
1eb01be7 | 192 | |
625fcfe9 KS |
193 | static int |
194 | yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, | |
195 | yaml_event_t *event); | |
1eb01be7 | 196 | |
625fcfe9 KS |
197 | static int |
198 | yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, | |
199 | yaml_event_t *event); | |
1eb01be7 | 200 | |
625fcfe9 KS |
201 | static int |
202 | yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, | |
203 | yaml_event_t *event); | |
1eb01be7 | 204 | |
625fcfe9 KS |
205 | static int |
206 | yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, | |
207 | yaml_event_t *event, int first); | |
1eb01be7 | 208 | |
625fcfe9 KS |
209 | static int |
210 | yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, | |
211 | yaml_event_t *event, int empty); | |
1eb01be7 | 212 | |
52fba2c6 KS |
213 | /* |
214 | * Utility functions. | |
215 | */ | |
216 | ||
625fcfe9 KS |
217 | static int |
218 | yaml_parser_process_empty_scalar(yaml_parser_t *parser, | |
219 | yaml_event_t *event, yaml_mark_t mark); | |
52fba2c6 KS |
220 | |
221 | static int | |
625fcfe9 KS |
222 | yaml_parser_process_directives(yaml_parser_t *parser, |
223 | yaml_version_directive_t **version_directive_ref, | |
224 | yaml_tag_directive_t **tag_directives_start_ref, | |
225 | yaml_tag_directive_t **tag_directives_end_ref); | |
226 | ||
227 | static int | |
228 | yaml_parser_append_tag_directive(yaml_parser_t *parser, | |
229 | yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark); | |
52fba2c6 | 230 | |
1eb01be7 | 231 | /* |
625fcfe9 | 232 | * Get the next event. |
1eb01be7 KS |
233 | */ |
234 | ||
625fcfe9 KS |
235 | YAML_DECLARE(int) |
236 | yaml_parser_parse(yaml_parser_t *parser, yaml_event_t *event) | |
1eb01be7 | 237 | { |
625fcfe9 KS |
238 | assert(parser); /* Non-NULL parser object is expected. */ |
239 | assert(event); /* Non-NULL event object is expected. */ | |
1eb01be7 | 240 | |
625fcfe9 | 241 | /* No events after the end of the stream or error. */ |
1eb01be7 | 242 | |
625fcfe9 KS |
243 | if (parser->stream_end_produced || parser->error || |
244 | parser->state == YAML_PARSE_END_STATE) { | |
245 | memset(event, 0, sizeof(yaml_event_t)); | |
1eb01be7 | 246 | |
625fcfe9 | 247 | return 1; |
1eb01be7 KS |
248 | } |
249 | ||
625fcfe9 | 250 | /* Generate the next event. */ |
1eb01be7 | 251 | |
625fcfe9 | 252 | return yaml_parser_state_machine(parser, event); |
1eb01be7 KS |
253 | } |
254 | ||
52fba2c6 KS |
255 | /* |
256 | * Set parser error. | |
257 | */ | |
258 | ||
259 | static int | |
260 | yaml_parser_set_parser_error(yaml_parser_t *parser, | |
261 | const char *problem, yaml_mark_t problem_mark) | |
262 | { | |
263 | parser->error = YAML_PARSER_ERROR; | |
264 | parser->problem = problem; | |
265 | parser->problem_mark = problem_mark; | |
266 | ||
267 | return 0; | |
268 | } | |
269 | ||
270 | static int | |
271 | yaml_parser_set_parser_error_context(yaml_parser_t *parser, | |
272 | const char *context, yaml_mark_t context_mark, | |
273 | const char *problem, yaml_mark_t problem_mark) | |
274 | { | |
275 | parser->error = YAML_PARSER_ERROR; | |
276 | parser->context = context; | |
277 | parser->context_mark = context_mark; | |
278 | parser->problem = problem; | |
279 | parser->problem_mark = problem_mark; | |
280 | ||
281 | return 0; | |
282 | } | |
283 | ||
52fba2c6 | 284 | |
1eb01be7 KS |
285 | /* |
286 | * State dispatcher. | |
287 | */ | |
288 | ||
625fcfe9 KS |
289 | static int |
290 | yaml_parser_state_machine(yaml_parser_t *parser, yaml_event_t *event) | |
1eb01be7 | 291 | { |
1eb01be7 KS |
292 | switch (parser->state) |
293 | { | |
294 | case YAML_PARSE_STREAM_START_STATE: | |
625fcfe9 | 295 | return yaml_parser_parse_stream_start(parser, event); |
1eb01be7 KS |
296 | |
297 | case YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE: | |
625fcfe9 | 298 | return yaml_parser_parse_document_start(parser, event, 1); |
1eb01be7 KS |
299 | |
300 | case YAML_PARSE_DOCUMENT_START_STATE: | |
625fcfe9 | 301 | return yaml_parser_parse_document_start(parser, event, 0); |
1eb01be7 KS |
302 | |
303 | case YAML_PARSE_DOCUMENT_CONTENT_STATE: | |
625fcfe9 | 304 | return yaml_parser_parse_document_content(parser, event); |
1eb01be7 KS |
305 | |
306 | case YAML_PARSE_DOCUMENT_END_STATE: | |
625fcfe9 | 307 | return yaml_parser_parse_document_end(parser, event); |
1eb01be7 KS |
308 | |
309 | case YAML_PARSE_BLOCK_NODE_STATE: | |
625fcfe9 | 310 | return yaml_parser_parse_node(parser, event, 1, 0); |
1eb01be7 KS |
311 | |
312 | case YAML_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: | |
625fcfe9 | 313 | return yaml_parser_parse_node(parser, event, 1, 1); |
1eb01be7 KS |
314 | |
315 | case YAML_PARSE_FLOW_NODE_STATE: | |
625fcfe9 | 316 | return yaml_parser_parse_node(parser, event, 0, 0); |
1eb01be7 KS |
317 | |
318 | case YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: | |
625fcfe9 | 319 | return yaml_parser_parse_block_sequence_entry(parser, event, 1); |
1eb01be7 KS |
320 | |
321 | case YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: | |
625fcfe9 | 322 | return yaml_parser_parse_block_sequence_entry(parser, event, 0); |
1eb01be7 KS |
323 | |
324 | case YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: | |
625fcfe9 | 325 | return yaml_parser_parse_indentless_sequence_entry(parser, event); |
1eb01be7 KS |
326 | |
327 | case YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: | |
625fcfe9 | 328 | return yaml_parser_parse_block_mapping_key(parser, event, 1); |
1eb01be7 KS |
329 | |
330 | case YAML_PARSE_BLOCK_MAPPING_KEY_STATE: | |
625fcfe9 | 331 | return yaml_parser_parse_block_mapping_key(parser, event, 0); |
1eb01be7 KS |
332 | |
333 | case YAML_PARSE_BLOCK_MAPPING_VALUE_STATE: | |
625fcfe9 | 334 | return yaml_parser_parse_block_mapping_value(parser, event); |
1eb01be7 KS |
335 | |
336 | case YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: | |
625fcfe9 | 337 | return yaml_parser_parse_flow_sequence_entry(parser, event, 1); |
1eb01be7 KS |
338 | |
339 | case YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE: | |
625fcfe9 | 340 | return yaml_parser_parse_flow_sequence_entry(parser, event, 0); |
1eb01be7 KS |
341 | |
342 | case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: | |
625fcfe9 | 343 | return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event); |
1eb01be7 KS |
344 | |
345 | case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: | |
625fcfe9 | 346 | return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event); |
1eb01be7 KS |
347 | |
348 | case YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: | |
625fcfe9 | 349 | return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event); |
1eb01be7 KS |
350 | |
351 | case YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: | |
625fcfe9 | 352 | return yaml_parser_parse_flow_mapping_key(parser, event, 1); |
1eb01be7 KS |
353 | |
354 | case YAML_PARSE_FLOW_MAPPING_KEY_STATE: | |
625fcfe9 | 355 | return yaml_parser_parse_flow_mapping_key(parser, event, 0); |
1eb01be7 KS |
356 | |
357 | case YAML_PARSE_FLOW_MAPPING_VALUE_STATE: | |
625fcfe9 | 358 | return yaml_parser_parse_flow_mapping_value(parser, event, 0); |
1eb01be7 KS |
359 | |
360 | case YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: | |
625fcfe9 KS |
361 | return yaml_parser_parse_flow_mapping_value(parser, event, 1); |
362 | ||
363 | default: | |
364 | assert(1); /* Invalid state. */ | |
1eb01be7 | 365 | } |
1eb01be7 KS |
366 | } |
367 | ||
52fba2c6 KS |
368 | /* |
369 | * Parse the production: | |
370 | * stream ::= STREAM-START implicit_document? explicit_document* STREAM-END | |
371 | * ************ | |
372 | */ | |
373 | ||
625fcfe9 KS |
374 | static int |
375 | yaml_parser_parse_stream_start(yaml_parser_t *parser, yaml_event_t *event) | |
52fba2c6 KS |
376 | { |
377 | yaml_token_t *token; | |
52fba2c6 | 378 | |
625fcfe9 KS |
379 | token = PEEK_TOKEN(parser); |
380 | if (!token) return 0; | |
52fba2c6 | 381 | |
625fcfe9 KS |
382 | if (token->type != YAML_STREAM_START_TOKEN) { |
383 | return yaml_parser_set_parser_error(parser, | |
384 | "did not found expected <stream-start>", token->start_mark); | |
52fba2c6 KS |
385 | } |
386 | ||
387 | parser->state = YAML_PARSE_IMPLICIT_DOCUMENT_START_STATE; | |
625fcfe9 KS |
388 | STREAM_START_EVENT_INIT(*event, token->data.stream_start.encoding, |
389 | token->start_mark, token->start_mark); | |
390 | SKIP_TOKEN(parser); | |
52fba2c6 | 391 | |
625fcfe9 | 392 | return 1; |
52fba2c6 KS |
393 | } |
394 | ||
395 | /* | |
396 | * Parse the productions: | |
397 | * implicit_document ::= block_node DOCUMENT-END* | |
398 | * * | |
399 | * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* | |
400 | * ************************* | |
401 | */ | |
402 | ||
625fcfe9 KS |
403 | static int |
404 | yaml_parser_parse_document_start(yaml_parser_t *parser, yaml_event_t *event, | |
405 | int implicit) | |
52fba2c6 KS |
406 | { |
407 | yaml_token_t *token; | |
625fcfe9 KS |
408 | yaml_version_directive_t *version_directive = NULL; |
409 | struct { | |
410 | yaml_tag_directive_t *start; | |
411 | yaml_tag_directive_t *end; | |
412 | } tag_directives = { NULL, NULL }; | |
52fba2c6 | 413 | |
625fcfe9 KS |
414 | token = PEEK_TOKEN(parser); |
415 | if (!token) return 0; | |
52fba2c6 KS |
416 | |
417 | /* Parse an implicit document. */ | |
418 | ||
419 | if (implicit && token->type != YAML_VERSION_DIRECTIVE_TOKEN && | |
420 | token->type != YAML_TAG_DIRECTIVE_TOKEN && | |
421 | token->type != YAML_DOCUMENT_START_TOKEN && | |
422 | token->type != YAML_STREAM_END_TOKEN) | |
423 | { | |
625fcfe9 KS |
424 | if (!yaml_parser_process_directives(parser, NULL, NULL, NULL)) |
425 | return 0; | |
426 | if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) | |
427 | return 0; | |
52fba2c6 | 428 | parser->state = YAML_PARSE_BLOCK_NODE_STATE; |
625fcfe9 | 429 | DOCUMENT_START_EVENT_INIT(*event, NULL, NULL, NULL, 1, |
52fba2c6 | 430 | token->start_mark, token->start_mark); |
625fcfe9 | 431 | return 1; |
52fba2c6 KS |
432 | } |
433 | ||
434 | /* Parse an explicit document. */ | |
435 | ||
436 | else if (token->type != YAML_STREAM_END_TOKEN) | |
437 | { | |
438 | yaml_mark_t start_mark, end_mark; | |
439 | start_mark = token->start_mark; | |
625fcfe9 KS |
440 | if (!yaml_parser_process_directives(parser, &version_directive, |
441 | &tag_directives.start, &tag_directives.end)) | |
442 | return 0; | |
443 | token = PEEK_TOKEN(parser); | |
444 | if (!token) goto error; | |
52fba2c6 KS |
445 | if (token->type != YAML_DOCUMENT_START_TOKEN) { |
446 | yaml_parser_set_parser_error(parser, | |
447 | "did not found expected <document start>", token->start_mark); | |
625fcfe9 | 448 | goto error; |
52fba2c6 | 449 | } |
625fcfe9 KS |
450 | if (!PUSH(parser, parser->states, YAML_PARSE_DOCUMENT_END_STATE)) |
451 | goto error; | |
52fba2c6 | 452 | parser->state = YAML_PARSE_DOCUMENT_CONTENT_STATE; |
625fcfe9 KS |
453 | end_mark = token->end_mark; |
454 | DOCUMENT_START_EVENT_INIT(*event, version_directive, | |
455 | tag_directives.start, tag_directives.end, 0, | |
52fba2c6 | 456 | start_mark, end_mark); |
625fcfe9 KS |
457 | SKIP_TOKEN(parser); |
458 | version_directive = NULL; | |
459 | tag_directives.start = tag_directives.end = NULL; | |
460 | return 1; | |
52fba2c6 KS |
461 | } |
462 | ||
463 | /* Parse the stream end. */ | |
464 | ||
465 | else | |
466 | { | |
52fba2c6 | 467 | parser->state = YAML_PARSE_END_STATE; |
625fcfe9 KS |
468 | STREAM_END_EVENT_INIT(*event, token->start_mark, token->end_mark); |
469 | SKIP_TOKEN(parser); | |
470 | return 1; | |
52fba2c6 | 471 | } |
625fcfe9 KS |
472 | |
473 | error: | |
474 | yaml_free(version_directive); | |
475 | while (tag_directives.start != tag_directives.end) { | |
476 | yaml_free(tag_directives.end[-1].handle); | |
477 | yaml_free(tag_directives.end[-1].prefix); | |
478 | tag_directives.end --; | |
479 | } | |
480 | yaml_free(tag_directives.start); | |
481 | return 0; | |
52fba2c6 KS |
482 | } |
483 | ||
484 | /* | |
485 | * Parse the productions: | |
486 | * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* | |
487 | * *********** | |
488 | */ | |
489 | ||
625fcfe9 KS |
490 | static int |
491 | yaml_parser_parse_document_content(yaml_parser_t *parser, yaml_event_t *event) | |
52fba2c6 KS |
492 | { |
493 | yaml_token_t *token; | |
494 | ||
625fcfe9 KS |
495 | token = PEEK_TOKEN(parser); |
496 | if (!token) return 0; | |
52fba2c6 KS |
497 | |
498 | if (token->type == YAML_VERSION_DIRECTIVE_TOKEN || | |
499 | token->type == YAML_TAG_DIRECTIVE_TOKEN || | |
500 | token->type == YAML_DOCUMENT_START_TOKEN || | |
501 | token->type == YAML_DOCUMENT_END_TOKEN || | |
502 | token->type == YAML_STREAM_END_TOKEN) { | |
625fcfe9 KS |
503 | parser->state = POP(parser, parser->states); |
504 | return yaml_parser_process_empty_scalar(parser, event, | |
505 | token->start_mark); | |
52fba2c6 KS |
506 | } |
507 | else { | |
625fcfe9 | 508 | return yaml_parser_parse_node(parser, event, 1, 0); |
52fba2c6 KS |
509 | } |
510 | } | |
511 | ||
512 | /* | |
513 | * Parse the productions: | |
514 | * implicit_document ::= block_node DOCUMENT-END* | |
515 | * ************* | |
516 | * explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* | |
517 | * ************* | |
518 | */ | |
519 | ||
625fcfe9 KS |
520 | static int |
521 | yaml_parser_parse_document_end(yaml_parser_t *parser, yaml_event_t *event) | |
52fba2c6 KS |
522 | { |
523 | yaml_token_t *token; | |
52fba2c6 KS |
524 | yaml_mark_t start_mark, end_mark; |
525 | int implicit = 1; | |
526 | ||
625fcfe9 KS |
527 | token = PEEK_TOKEN(parser); |
528 | if (!token) return 0; | |
52fba2c6 KS |
529 | |
530 | start_mark = end_mark = token->start_mark; | |
531 | ||
532 | while (token->type == YAML_DOCUMENT_END_TOKEN) { | |
533 | end_mark = token->end_mark; | |
625fcfe9 KS |
534 | SKIP_TOKEN(parser); |
535 | token = PEEK_TOKEN(parser); | |
536 | if (!token) return 0; | |
52fba2c6 KS |
537 | implicit = 0; |
538 | } | |
539 | ||
625fcfe9 KS |
540 | while (!STACK_EMPTY(parser, parser->tag_directives)) { |
541 | yaml_tag_directive_t tag_directive = POP(parser, parser->tag_directives); | |
542 | yaml_free(tag_directive.handle); | |
543 | yaml_free(tag_directive.prefix); | |
ab01bac8 | 544 | } |
ab01bac8 | 545 | |
ab01bac8 | 546 | parser->state = YAML_PARSE_DOCUMENT_START_STATE; |
625fcfe9 | 547 | DOCUMENT_END_EVENT_INIT(*event, implicit, start_mark, end_mark); |
ab01bac8 | 548 | |
625fcfe9 | 549 | return 1; |
52fba2c6 KS |
550 | } |
551 | ||
552 | /* | |
553 | * Parse the productions: | |
554 | * block_node_or_indentless_sequence ::= | |
555 | * ALIAS | |
556 | * ***** | |
557 | * | properties (block_content | indentless_block_sequence)? | |
558 | * ********** * | |
559 | * | block_content | indentless_block_sequence | |
560 | * * | |
561 | * block_node ::= ALIAS | |
562 | * ***** | |
563 | * | properties block_content? | |
564 | * ********** * | |
565 | * | block_content | |
566 | * * | |
567 | * flow_node ::= ALIAS | |
568 | * ***** | |
569 | * | properties flow_content? | |
570 | * ********** * | |
571 | * | flow_content | |
572 | * * | |
573 | * properties ::= TAG ANCHOR? | ANCHOR TAG? | |
574 | * ************************* | |
575 | * block_content ::= block_collection | flow_collection | SCALAR | |
576 | * ****** | |
577 | * flow_content ::= flow_collection | SCALAR | |
578 | * ****** | |
579 | */ | |
580 | ||
625fcfe9 KS |
581 | static int |
582 | yaml_parser_parse_node(yaml_parser_t *parser, yaml_event_t *event, | |
52fba2c6 KS |
583 | int block, int indentless_sequence) |
584 | { | |
585 | yaml_token_t *token; | |
52fba2c6 KS |
586 | yaml_char_t *anchor = NULL; |
587 | yaml_char_t *tag_handle = NULL; | |
588 | yaml_char_t *tag_suffix = NULL; | |
589 | yaml_char_t *tag = NULL; | |
590 | yaml_mark_t start_mark, end_mark, tag_mark; | |
591 | int implicit; | |
592 | ||
625fcfe9 KS |
593 | token = PEEK_TOKEN(parser); |
594 | if (!token) return 0; | |
52fba2c6 KS |
595 | |
596 | if (token->type == YAML_ALIAS_TOKEN) | |
597 | { | |
625fcfe9 KS |
598 | parser->state = POP(parser, parser->states); |
599 | ALIAS_EVENT_INIT(*event, token->data.alias.value, | |
52fba2c6 | 600 | token->start_mark, token->end_mark); |
625fcfe9 KS |
601 | SKIP_TOKEN(parser); |
602 | return 1; | |
52fba2c6 KS |
603 | } |
604 | ||
605 | else | |
606 | { | |
607 | start_mark = end_mark = token->start_mark; | |
608 | ||
609 | if (token->type == YAML_ANCHOR_TOKEN) | |
610 | { | |
52fba2c6 KS |
611 | anchor = token->data.anchor.value; |
612 | start_mark = token->start_mark; | |
613 | end_mark = token->end_mark; | |
625fcfe9 KS |
614 | SKIP_TOKEN(parser); |
615 | token = PEEK_TOKEN(parser); | |
52fba2c6 KS |
616 | if (!token) goto error; |
617 | if (token->type == YAML_TAG_TOKEN) | |
618 | { | |
52fba2c6 KS |
619 | tag_handle = token->data.tag.handle; |
620 | tag_suffix = token->data.tag.suffix; | |
621 | tag_mark = token->start_mark; | |
622 | end_mark = token->end_mark; | |
625fcfe9 KS |
623 | SKIP_TOKEN(parser); |
624 | token = PEEK_TOKEN(parser); | |
52fba2c6 KS |
625 | if (!token) goto error; |
626 | } | |
627 | } | |
628 | else if (token->type == YAML_TAG_TOKEN) | |
629 | { | |
52fba2c6 KS |
630 | tag_handle = token->data.tag.handle; |
631 | tag_suffix = token->data.tag.suffix; | |
632 | start_mark = tag_mark = token->start_mark; | |
633 | end_mark = token->end_mark; | |
625fcfe9 KS |
634 | SKIP_TOKEN(parser); |
635 | token = PEEK_TOKEN(parser); | |
52fba2c6 KS |
636 | if (!token) goto error; |
637 | if (token->type == YAML_ANCHOR_TOKEN) | |
638 | { | |
52fba2c6 KS |
639 | anchor = token->data.anchor.value; |
640 | end_mark = token->end_mark; | |
625fcfe9 KS |
641 | SKIP_TOKEN(parser); |
642 | token = PEEK_TOKEN(parser); | |
52fba2c6 KS |
643 | if (!token) goto error; |
644 | } | |
645 | } | |
646 | ||
647 | if (tag_handle) { | |
648 | if (!*tag_handle) { | |
649 | tag = tag_suffix; | |
650 | yaml_free(tag_handle); | |
651 | tag_handle = tag_suffix = NULL; | |
652 | } | |
653 | else { | |
625fcfe9 KS |
654 | yaml_tag_directive_t *tag_directive; |
655 | for (tag_directive = parser->tag_directives.start; | |
656 | tag_directive != parser->tag_directives.top; | |
657 | tag_directive ++) { | |
658 | if (strcmp((char *)tag_directive->handle, (char *)tag_handle) == 0) { | |
659 | size_t prefix_len = strlen((char *)tag_directive->prefix); | |
52fba2c6 KS |
660 | size_t suffix_len = strlen((char *)tag_suffix); |
661 | tag = yaml_malloc(prefix_len+suffix_len+1); | |
662 | if (!tag) { | |
663 | parser->error = YAML_MEMORY_ERROR; | |
664 | goto error; | |
665 | } | |
625fcfe9 | 666 | memcpy(tag, tag_directive->prefix, prefix_len); |
52fba2c6 KS |
667 | memcpy(tag+prefix_len, tag_suffix, suffix_len); |
668 | tag[prefix_len+suffix_len] = '\0'; | |
669 | yaml_free(tag_handle); | |
670 | yaml_free(tag_suffix); | |
671 | tag_handle = tag_suffix = NULL; | |
672 | break; | |
673 | } | |
674 | } | |
625fcfe9 | 675 | if (!tag) { |
52fba2c6 KS |
676 | yaml_parser_set_parser_error_context(parser, |
677 | "while parsing a node", start_mark, | |
678 | "found undefined tag handle", tag_mark); | |
679 | goto error; | |
680 | } | |
681 | } | |
682 | } | |
683 | ||
684 | implicit = (!tag || !*tag); | |
685 | if (indentless_sequence && token->type == YAML_BLOCK_ENTRY_TOKEN) { | |
686 | end_mark = token->end_mark; | |
687 | parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; | |
625fcfe9 | 688 | SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, |
52fba2c6 | 689 | YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); |
625fcfe9 | 690 | return 1; |
52fba2c6 KS |
691 | } |
692 | else { | |
693 | if (token->type == YAML_SCALAR_TOKEN) { | |
694 | int plain_implicit = 0; | |
695 | int quoted_implicit = 0; | |
52fba2c6 KS |
696 | end_mark = token->end_mark; |
697 | if ((token->data.scalar.style == YAML_PLAIN_SCALAR_STYLE && !tag) | |
ab01bac8 | 698 | || (tag && strcmp((char *)tag, "!") == 0)) { |
52fba2c6 KS |
699 | plain_implicit = 1; |
700 | } | |
701 | else if (!tag) { | |
702 | quoted_implicit = 1; | |
703 | } | |
625fcfe9 KS |
704 | parser->state = POP(parser, parser->states); |
705 | SCALAR_EVENT_INIT(*event, anchor, tag, | |
52fba2c6 KS |
706 | token->data.scalar.value, token->data.scalar.length, |
707 | plain_implicit, quoted_implicit, | |
708 | token->data.scalar.style, start_mark, end_mark); | |
625fcfe9 KS |
709 | SKIP_TOKEN(parser); |
710 | return 1; | |
52fba2c6 KS |
711 | } |
712 | else if (token->type == YAML_FLOW_SEQUENCE_START_TOKEN) { | |
713 | end_mark = token->end_mark; | |
714 | parser->state = YAML_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE; | |
625fcfe9 | 715 | SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, |
52fba2c6 | 716 | YAML_FLOW_SEQUENCE_STYLE, start_mark, end_mark); |
625fcfe9 | 717 | return 1; |
52fba2c6 KS |
718 | } |
719 | else if (token->type == YAML_FLOW_MAPPING_START_TOKEN) { | |
720 | end_mark = token->end_mark; | |
721 | parser->state = YAML_PARSE_FLOW_MAPPING_FIRST_KEY_STATE; | |
625fcfe9 | 722 | MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, |
52fba2c6 | 723 | YAML_FLOW_MAPPING_STYLE, start_mark, end_mark); |
625fcfe9 | 724 | return 1; |
52fba2c6 KS |
725 | } |
726 | else if (block && token->type == YAML_BLOCK_SEQUENCE_START_TOKEN) { | |
727 | end_mark = token->end_mark; | |
728 | parser->state = YAML_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE; | |
625fcfe9 | 729 | SEQUENCE_START_EVENT_INIT(*event, anchor, tag, implicit, |
52fba2c6 | 730 | YAML_BLOCK_SEQUENCE_STYLE, start_mark, end_mark); |
625fcfe9 | 731 | return 1; |
52fba2c6 KS |
732 | } |
733 | else if (block && token->type == YAML_BLOCK_MAPPING_START_TOKEN) { | |
734 | end_mark = token->end_mark; | |
735 | parser->state = YAML_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE; | |
625fcfe9 | 736 | MAPPING_START_EVENT_INIT(*event, anchor, tag, implicit, |
52fba2c6 | 737 | YAML_BLOCK_MAPPING_STYLE, start_mark, end_mark); |
625fcfe9 | 738 | return 1; |
52fba2c6 KS |
739 | } |
740 | else if (anchor || tag) { | |
741 | yaml_char_t *value = yaml_malloc(1); | |
742 | if (!value) { | |
743 | parser->error = YAML_MEMORY_ERROR; | |
744 | goto error; | |
745 | } | |
746 | value[0] = '\0'; | |
625fcfe9 KS |
747 | parser->state = POP(parser, parser->states); |
748 | SCALAR_EVENT_INIT(*event, anchor, tag, value, 0, | |
52fba2c6 KS |
749 | implicit, 0, YAML_PLAIN_SCALAR_STYLE, |
750 | start_mark, end_mark); | |
625fcfe9 | 751 | return 1; |
52fba2c6 KS |
752 | } |
753 | else { | |
754 | yaml_parser_set_parser_error_context(parser, | |
755 | (block ? "while parsing a block node" | |
756 | : "while parsing a flow node"), start_mark, | |
757 | "did not found expected node content", token->start_mark); | |
758 | goto error; | |
759 | } | |
52fba2c6 KS |
760 | } |
761 | } | |
762 | ||
763 | error: | |
764 | yaml_free(anchor); | |
765 | yaml_free(tag_handle); | |
766 | yaml_free(tag_suffix); | |
767 | yaml_free(tag); | |
768 | ||
625fcfe9 | 769 | return 0; |
52fba2c6 KS |
770 | } |
771 | ||
772 | /* | |
773 | * Parse the productions: | |
774 | * block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END | |
775 | * ******************** *********** * ********* | |
776 | */ | |
777 | ||
625fcfe9 KS |
778 | static int |
779 | yaml_parser_parse_block_sequence_entry(yaml_parser_t *parser, | |
780 | yaml_event_t *event, int first) | |
52fba2c6 KS |
781 | { |
782 | yaml_token_t *token; | |
52fba2c6 KS |
783 | |
784 | if (first) { | |
625fcfe9 KS |
785 | token = PEEK_TOKEN(parser); |
786 | if (!PUSH(parser, parser->marks, token->start_mark)) | |
787 | return 0; | |
788 | SKIP_TOKEN(parser); | |
52fba2c6 KS |
789 | } |
790 | ||
625fcfe9 KS |
791 | token = PEEK_TOKEN(parser); |
792 | if (!token) return 0; | |
52fba2c6 KS |
793 | |
794 | if (token->type == YAML_BLOCK_ENTRY_TOKEN) | |
795 | { | |
796 | yaml_mark_t mark = token->end_mark; | |
625fcfe9 KS |
797 | SKIP_TOKEN(parser); |
798 | token = PEEK_TOKEN(parser); | |
799 | if (!token) return 0; | |
52fba2c6 KS |
800 | if (token->type != YAML_BLOCK_ENTRY_TOKEN && |
801 | token->type != YAML_BLOCK_END_TOKEN) { | |
625fcfe9 | 802 | if (!PUSH(parser, parser->states, |
52fba2c6 | 803 | YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE)) |
625fcfe9 KS |
804 | return 0; |
805 | return yaml_parser_parse_node(parser, event, 1, 0); | |
52fba2c6 KS |
806 | } |
807 | else { | |
808 | parser->state = YAML_PARSE_BLOCK_SEQUENCE_ENTRY_STATE; | |
625fcfe9 | 809 | return yaml_parser_process_empty_scalar(parser, event, mark); |
52fba2c6 KS |
810 | } |
811 | } | |
812 | ||
813 | else if (token->type == YAML_BLOCK_END_TOKEN) | |
814 | { | |
625fcfe9 KS |
815 | parser->state = POP(parser, parser->states); |
816 | POP(parser, parser->marks); | |
817 | SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); | |
818 | SKIP_TOKEN(parser); | |
819 | return 1; | |
52fba2c6 KS |
820 | } |
821 | ||
822 | else | |
823 | { | |
625fcfe9 KS |
824 | return yaml_parser_set_parser_error_context(parser, |
825 | "while parsing a block collection", POP(parser, parser->marks), | |
52fba2c6 | 826 | "did not found expected '-' indicator", token->start_mark); |
52fba2c6 KS |
827 | } |
828 | } | |
829 | ||
830 | /* | |
831 | * Parse the productions: | |
832 | * indentless_sequence ::= (BLOCK-ENTRY block_node?)+ | |
833 | * *********** * | |
834 | */ | |
835 | ||
625fcfe9 KS |
836 | static int |
837 | yaml_parser_parse_indentless_sequence_entry(yaml_parser_t *parser, | |
838 | yaml_event_t *event) | |
52fba2c6 KS |
839 | { |
840 | yaml_token_t *token; | |
52fba2c6 | 841 | |
625fcfe9 KS |
842 | token = PEEK_TOKEN(parser); |
843 | if (!token) return 0; | |
52fba2c6 KS |
844 | |
845 | if (token->type == YAML_BLOCK_ENTRY_TOKEN) | |
846 | { | |
847 | yaml_mark_t mark = token->end_mark; | |
625fcfe9 KS |
848 | SKIP_TOKEN(parser); |
849 | token = PEEK_TOKEN(parser); | |
850 | if (!token) return 0; | |
52fba2c6 | 851 | if (token->type != YAML_BLOCK_ENTRY_TOKEN && |
625fcfe9 KS |
852 | token->type != YAML_KEY_TOKEN && |
853 | token->type != YAML_VALUE_TOKEN && | |
52fba2c6 | 854 | token->type != YAML_BLOCK_END_TOKEN) { |
625fcfe9 | 855 | if (!PUSH(parser, parser->states, |
52fba2c6 | 856 | YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE)) |
625fcfe9 KS |
857 | return 0; |
858 | return yaml_parser_parse_node(parser, event, 1, 0); | |
52fba2c6 KS |
859 | } |
860 | else { | |
861 | parser->state = YAML_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE; | |
625fcfe9 | 862 | return yaml_parser_process_empty_scalar(parser, event, mark); |
52fba2c6 KS |
863 | } |
864 | } | |
865 | ||
866 | else | |
867 | { | |
625fcfe9 KS |
868 | parser->state = POP(parser, parser->states); |
869 | SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->start_mark); | |
870 | return 1; | |
52fba2c6 KS |
871 | } |
872 | } | |
873 | ||
874 | /* | |
875 | * Parse the productions: | |
876 | * block_mapping ::= BLOCK-MAPPING_START | |
877 | * ******************* | |
878 | * ((KEY block_node_or_indentless_sequence?)? | |
879 | * *** * | |
880 | * (VALUE block_node_or_indentless_sequence?)?)* | |
881 | * | |
882 | * BLOCK-END | |
883 | * ********* | |
884 | */ | |
885 | ||
625fcfe9 KS |
886 | static int |
887 | yaml_parser_parse_block_mapping_key(yaml_parser_t *parser, | |
888 | yaml_event_t *event, int first) | |
52fba2c6 KS |
889 | { |
890 | yaml_token_t *token; | |
52fba2c6 KS |
891 | |
892 | if (first) { | |
625fcfe9 KS |
893 | token = PEEK_TOKEN(parser); |
894 | if (!PUSH(parser, parser->marks, token->start_mark)) | |
895 | return 0; | |
896 | SKIP_TOKEN(parser); | |
52fba2c6 KS |
897 | } |
898 | ||
625fcfe9 KS |
899 | token = PEEK_TOKEN(parser); |
900 | if (!token) return 0; | |
52fba2c6 KS |
901 | |
902 | if (token->type == YAML_KEY_TOKEN) | |
903 | { | |
904 | yaml_mark_t mark = token->end_mark; | |
625fcfe9 KS |
905 | SKIP_TOKEN(parser); |
906 | token = PEEK_TOKEN(parser); | |
907 | if (!token) return 0; | |
52fba2c6 KS |
908 | if (token->type != YAML_KEY_TOKEN && |
909 | token->type != YAML_VALUE_TOKEN && | |
910 | token->type != YAML_BLOCK_END_TOKEN) { | |
625fcfe9 | 911 | if (!PUSH(parser, parser->states, |
52fba2c6 | 912 | YAML_PARSE_BLOCK_MAPPING_VALUE_STATE)) |
625fcfe9 KS |
913 | return 0; |
914 | return yaml_parser_parse_node(parser, event, 1, 1); | |
52fba2c6 KS |
915 | } |
916 | else { | |
917 | parser->state = YAML_PARSE_BLOCK_MAPPING_VALUE_STATE; | |
625fcfe9 | 918 | return yaml_parser_process_empty_scalar(parser, event, mark); |
52fba2c6 KS |
919 | } |
920 | } | |
921 | ||
922 | else if (token->type == YAML_BLOCK_END_TOKEN) | |
923 | { | |
625fcfe9 KS |
924 | parser->state = POP(parser, parser->states); |
925 | POP(parser, parser->marks); | |
926 | MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); | |
927 | SKIP_TOKEN(parser); | |
928 | return 1; | |
52fba2c6 KS |
929 | } |
930 | ||
931 | else | |
932 | { | |
625fcfe9 KS |
933 | return yaml_parser_set_parser_error_context(parser, |
934 | "while parsing a block mapping", POP(parser, parser->marks), | |
52fba2c6 | 935 | "did not found expected key", token->start_mark); |
52fba2c6 KS |
936 | } |
937 | } | |
938 | ||
939 | /* | |
940 | * Parse the productions: | |
941 | * block_mapping ::= BLOCK-MAPPING_START | |
942 | * | |
943 | * ((KEY block_node_or_indentless_sequence?)? | |
944 | * | |
945 | * (VALUE block_node_or_indentless_sequence?)?)* | |
946 | * ***** * | |
947 | * BLOCK-END | |
948 | * | |
949 | */ | |
950 | ||
625fcfe9 KS |
951 | static int |
952 | yaml_parser_parse_block_mapping_value(yaml_parser_t *parser, | |
953 | yaml_event_t *event) | |
52fba2c6 KS |
954 | { |
955 | yaml_token_t *token; | |
52fba2c6 | 956 | |
625fcfe9 KS |
957 | token = PEEK_TOKEN(parser); |
958 | if (!token) return 0; | |
52fba2c6 KS |
959 | |
960 | if (token->type == YAML_VALUE_TOKEN) | |
961 | { | |
962 | yaml_mark_t mark = token->end_mark; | |
625fcfe9 KS |
963 | SKIP_TOKEN(parser); |
964 | token = PEEK_TOKEN(parser); | |
965 | if (!token) return 0; | |
52fba2c6 KS |
966 | if (token->type != YAML_KEY_TOKEN && |
967 | token->type != YAML_VALUE_TOKEN && | |
968 | token->type != YAML_BLOCK_END_TOKEN) { | |
625fcfe9 | 969 | if (!PUSH(parser, parser->states, |
52fba2c6 | 970 | YAML_PARSE_BLOCK_MAPPING_KEY_STATE)) |
625fcfe9 KS |
971 | return 0; |
972 | return yaml_parser_parse_node(parser, event, 1, 1); | |
52fba2c6 KS |
973 | } |
974 | else { | |
975 | parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; | |
625fcfe9 | 976 | return yaml_parser_process_empty_scalar(parser, event, mark); |
52fba2c6 KS |
977 | } |
978 | } | |
979 | ||
980 | else | |
981 | { | |
982 | parser->state = YAML_PARSE_BLOCK_MAPPING_KEY_STATE; | |
625fcfe9 | 983 | return yaml_parser_process_empty_scalar(parser, event, token->start_mark); |
52fba2c6 KS |
984 | } |
985 | } | |
986 | ||
ab01bac8 KS |
987 | /* |
988 | * Parse the productions: | |
989 | * flow_sequence ::= FLOW-SEQUENCE-START | |
990 | * ******************* | |
991 | * (flow_sequence_entry FLOW-ENTRY)* | |
992 | * * ********** | |
993 | * flow_sequence_entry? | |
994 | * * | |
995 | * FLOW-SEQUENCE-END | |
996 | * ***************** | |
997 | * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
998 | * * | |
999 | */ | |
1000 | ||
625fcfe9 KS |
1001 | static int |
1002 | yaml_parser_parse_flow_sequence_entry(yaml_parser_t *parser, | |
1003 | yaml_event_t *event, int first) | |
ab01bac8 KS |
1004 | { |
1005 | yaml_token_t *token; | |
ab01bac8 KS |
1006 | |
1007 | if (first) { | |
625fcfe9 KS |
1008 | token = PEEK_TOKEN(parser); |
1009 | if (!PUSH(parser, parser->marks, token->start_mark)) | |
1010 | return 0; | |
1011 | SKIP_TOKEN(parser); | |
ab01bac8 KS |
1012 | } |
1013 | ||
625fcfe9 KS |
1014 | token = PEEK_TOKEN(parser); |
1015 | if (!token) return 0; | |
ab01bac8 KS |
1016 | |
1017 | if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) | |
1018 | { | |
1019 | if (!first) { | |
1020 | if (token->type == YAML_FLOW_ENTRY_TOKEN) { | |
625fcfe9 KS |
1021 | SKIP_TOKEN(parser); |
1022 | token = PEEK_TOKEN(parser); | |
1023 | if (!token) return 0; | |
ab01bac8 KS |
1024 | } |
1025 | else { | |
625fcfe9 KS |
1026 | return yaml_parser_set_parser_error_context(parser, |
1027 | "while parsing a flow sequence", POP(parser, parser->marks), | |
ab01bac8 | 1028 | "did not found expected ',' or ']'", token->start_mark); |
ab01bac8 KS |
1029 | } |
1030 | } | |
1031 | ||
1032 | if (token->type == YAML_KEY_TOKEN) { | |
ab01bac8 | 1033 | parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE; |
625fcfe9 | 1034 | MAPPING_START_EVENT_INIT(*event, NULL, NULL, |
ab01bac8 KS |
1035 | 1, YAML_FLOW_MAPPING_STYLE, |
1036 | token->start_mark, token->end_mark); | |
625fcfe9 KS |
1037 | SKIP_TOKEN(parser); |
1038 | return 1; | |
ab01bac8 KS |
1039 | } |
1040 | ||
1041 | else if (token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { | |
625fcfe9 | 1042 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1043 | YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE)) |
625fcfe9 KS |
1044 | return 0; |
1045 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1046 | } |
1047 | } | |
1048 | ||
625fcfe9 KS |
1049 | parser->state = POP(parser, parser->states); |
1050 | POP(parser, parser->marks); | |
1051 | SEQUENCE_END_EVENT_INIT(*event, token->start_mark, token->end_mark); | |
1052 | SKIP_TOKEN(parser); | |
1053 | return 1; | |
ab01bac8 KS |
1054 | } |
1055 | ||
1056 | /* | |
1057 | * Parse the productions: | |
1058 | * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
1059 | * *** * | |
1060 | */ | |
52fba2c6 | 1061 | |
625fcfe9 KS |
1062 | static int |
1063 | yaml_parser_parse_flow_sequence_entry_mapping_key(yaml_parser_t *parser, | |
1064 | yaml_event_t *event) | |
ab01bac8 KS |
1065 | { |
1066 | yaml_token_t *token; | |
ab01bac8 | 1067 | |
625fcfe9 KS |
1068 | token = PEEK_TOKEN(parser); |
1069 | if (!token) return 0; | |
ab01bac8 KS |
1070 | |
1071 | if (token->type != YAML_VALUE_TOKEN && token->type != YAML_FLOW_ENTRY_TOKEN | |
1072 | && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { | |
625fcfe9 | 1073 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1074 | YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE)) |
625fcfe9 KS |
1075 | return 0; |
1076 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1077 | } |
1078 | else { | |
625fcfe9 KS |
1079 | yaml_mark_t mark = token->end_mark; |
1080 | SKIP_TOKEN(parser); | |
ab01bac8 | 1081 | parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE; |
625fcfe9 | 1082 | return yaml_parser_process_empty_scalar(parser, event, mark); |
ab01bac8 KS |
1083 | } |
1084 | } | |
1085 | ||
1086 | /* | |
1087 | * Parse the productions: | |
1088 | * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
1089 | * ***** * | |
1090 | */ | |
52fba2c6 | 1091 | |
625fcfe9 KS |
1092 | static int |
1093 | yaml_parser_parse_flow_sequence_entry_mapping_value(yaml_parser_t *parser, | |
1094 | yaml_event_t *event) | |
ab01bac8 KS |
1095 | { |
1096 | yaml_token_t *token; | |
1097 | ||
625fcfe9 KS |
1098 | token = PEEK_TOKEN(parser); |
1099 | if (!token) return 0; | |
ab01bac8 KS |
1100 | |
1101 | if (token->type == YAML_VALUE_TOKEN) { | |
625fcfe9 KS |
1102 | SKIP_TOKEN(parser); |
1103 | token = PEEK_TOKEN(parser); | |
1104 | if (!token) return 0; | |
ab01bac8 KS |
1105 | if (token->type != YAML_FLOW_ENTRY_TOKEN |
1106 | && token->type != YAML_FLOW_SEQUENCE_END_TOKEN) { | |
625fcfe9 | 1107 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1108 | YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE)) |
625fcfe9 KS |
1109 | return 0; |
1110 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1111 | } |
1112 | } | |
1113 | parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE; | |
625fcfe9 | 1114 | return yaml_parser_process_empty_scalar(parser, event, token->start_mark); |
ab01bac8 KS |
1115 | } |
1116 | ||
1117 | /* | |
1118 | * Parse the productions: | |
1119 | * flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
1120 | * * | |
1121 | */ | |
52fba2c6 | 1122 | |
625fcfe9 KS |
1123 | static int |
1124 | yaml_parser_parse_flow_sequence_entry_mapping_end(yaml_parser_t *parser, | |
1125 | yaml_event_t *event) | |
ab01bac8 KS |
1126 | { |
1127 | yaml_token_t *token; | |
1128 | ||
625fcfe9 KS |
1129 | token = PEEK_TOKEN(parser); |
1130 | if (!token) return 0; | |
ab01bac8 KS |
1131 | |
1132 | parser->state = YAML_PARSE_FLOW_SEQUENCE_ENTRY_STATE; | |
1133 | ||
625fcfe9 KS |
1134 | MAPPING_END_EVENT_INIT(*event, token->start_mark, token->start_mark); |
1135 | return 1; | |
ab01bac8 KS |
1136 | } |
1137 | ||
1138 | /* | |
1139 | * Parse the productions: | |
1140 | * flow_mapping ::= FLOW-MAPPING-START | |
1141 | * ****************** | |
1142 | * (flow_mapping_entry FLOW-ENTRY)* | |
1143 | * * ********** | |
1144 | * flow_mapping_entry? | |
1145 | * ****************** | |
1146 | * FLOW-MAPPING-END | |
1147 | * **************** | |
1148 | * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
1149 | * * *** * | |
1150 | */ | |
52fba2c6 | 1151 | |
625fcfe9 KS |
1152 | static int |
1153 | yaml_parser_parse_flow_mapping_key(yaml_parser_t *parser, | |
1154 | yaml_event_t *event, int first) | |
ab01bac8 KS |
1155 | { |
1156 | yaml_token_t *token; | |
ab01bac8 KS |
1157 | |
1158 | if (first) { | |
625fcfe9 KS |
1159 | token = PEEK_TOKEN(parser); |
1160 | if (!PUSH(parser, parser->marks, token->start_mark)) | |
1161 | return 0; | |
1162 | SKIP_TOKEN(parser); | |
ab01bac8 KS |
1163 | } |
1164 | ||
625fcfe9 KS |
1165 | token = PEEK_TOKEN(parser); |
1166 | if (!token) return 0; | |
ab01bac8 KS |
1167 | |
1168 | if (token->type != YAML_FLOW_MAPPING_END_TOKEN) | |
1169 | { | |
1170 | if (!first) { | |
1171 | if (token->type == YAML_FLOW_ENTRY_TOKEN) { | |
625fcfe9 KS |
1172 | SKIP_TOKEN(parser); |
1173 | token = PEEK_TOKEN(parser); | |
1174 | if (!token) return 0; | |
ab01bac8 KS |
1175 | } |
1176 | else { | |
625fcfe9 KS |
1177 | return yaml_parser_set_parser_error_context(parser, |
1178 | "while parsing a flow mapping", POP(parser, parser->marks), | |
ab01bac8 | 1179 | "did not found expected ',' or '}'", token->start_mark); |
ab01bac8 KS |
1180 | } |
1181 | } | |
1182 | ||
1183 | if (token->type == YAML_KEY_TOKEN) { | |
625fcfe9 KS |
1184 | SKIP_TOKEN(parser); |
1185 | token = PEEK_TOKEN(parser); | |
1186 | if (!token) return 0; | |
ab01bac8 KS |
1187 | if (token->type != YAML_VALUE_TOKEN |
1188 | && token->type != YAML_FLOW_ENTRY_TOKEN | |
1189 | && token->type != YAML_FLOW_MAPPING_END_TOKEN) { | |
625fcfe9 | 1190 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1191 | YAML_PARSE_FLOW_MAPPING_VALUE_STATE)) |
625fcfe9 KS |
1192 | return 0; |
1193 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1194 | } |
1195 | else { | |
1196 | parser->state = YAML_PARSE_FLOW_MAPPING_VALUE_STATE; | |
625fcfe9 KS |
1197 | return yaml_parser_process_empty_scalar(parser, event, |
1198 | token->start_mark); | |
ab01bac8 KS |
1199 | } |
1200 | } | |
1201 | else if (token->type != YAML_FLOW_MAPPING_END_TOKEN) { | |
625fcfe9 | 1202 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1203 | YAML_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE)) |
625fcfe9 KS |
1204 | return 0; |
1205 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1206 | } |
1207 | } | |
1208 | ||
625fcfe9 KS |
1209 | parser->state = POP(parser, parser->states); |
1210 | POP(parser, parser->marks); | |
1211 | MAPPING_END_EVENT_INIT(*event, token->start_mark, token->end_mark); | |
1212 | SKIP_TOKEN(parser); | |
1213 | return 1; | |
ab01bac8 KS |
1214 | } |
1215 | ||
1216 | /* | |
1217 | * Parse the productions: | |
1218 | * flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? | |
1219 | * * ***** * | |
1220 | */ | |
52fba2c6 | 1221 | |
625fcfe9 KS |
1222 | static int |
1223 | yaml_parser_parse_flow_mapping_value(yaml_parser_t *parser, | |
1224 | yaml_event_t *event, int empty) | |
ab01bac8 KS |
1225 | { |
1226 | yaml_token_t *token; | |
ab01bac8 | 1227 | |
625fcfe9 KS |
1228 | token = PEEK_TOKEN(parser); |
1229 | if (!token) return 0; | |
ab01bac8 KS |
1230 | |
1231 | if (empty) { | |
1232 | parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; | |
625fcfe9 KS |
1233 | return yaml_parser_process_empty_scalar(parser, event, |
1234 | token->start_mark); | |
ab01bac8 KS |
1235 | } |
1236 | ||
1237 | if (token->type == YAML_VALUE_TOKEN) { | |
625fcfe9 KS |
1238 | SKIP_TOKEN(parser); |
1239 | token = PEEK_TOKEN(parser); | |
1240 | if (!token) return 0; | |
ab01bac8 KS |
1241 | if (token->type != YAML_FLOW_ENTRY_TOKEN |
1242 | && token->type != YAML_FLOW_MAPPING_END_TOKEN) { | |
625fcfe9 | 1243 | if (!PUSH(parser, parser->states, |
ab01bac8 | 1244 | YAML_PARSE_FLOW_MAPPING_KEY_STATE)) |
625fcfe9 KS |
1245 | return 0; |
1246 | return yaml_parser_parse_node(parser, event, 0, 0); | |
ab01bac8 KS |
1247 | } |
1248 | } | |
1249 | ||
1250 | parser->state = YAML_PARSE_FLOW_MAPPING_KEY_STATE; | |
625fcfe9 | 1251 | return yaml_parser_process_empty_scalar(parser, event, token->start_mark); |
ab01bac8 KS |
1252 | } |
1253 | ||
1254 | /* | |
1255 | * Generate an empty scalar event. | |
1256 | */ | |
1257 | ||
625fcfe9 KS |
1258 | static int |
1259 | yaml_parser_process_empty_scalar(yaml_parser_t *parser, yaml_event_t *event, | |
1260 | yaml_mark_t mark) | |
ab01bac8 | 1261 | { |
ab01bac8 KS |
1262 | yaml_char_t *value; |
1263 | ||
1264 | value = yaml_malloc(1); | |
1265 | if (!value) { | |
1266 | parser->error = YAML_MEMORY_ERROR; | |
625fcfe9 | 1267 | return 0; |
ab01bac8 KS |
1268 | } |
1269 | value[0] = '\0'; | |
1270 | ||
625fcfe9 | 1271 | SCALAR_EVENT_INIT(*event, NULL, NULL, value, 0, |
ab01bac8 | 1272 | 1, 0, YAML_PLAIN_SCALAR_STYLE, mark, mark); |
ab01bac8 | 1273 | |
625fcfe9 | 1274 | return 1; |
ab01bac8 KS |
1275 | } |
1276 | ||
1277 | /* | |
1278 | * Parse directives. | |
1279 | */ | |
1280 | ||
1281 | static int | |
625fcfe9 KS |
1282 | yaml_parser_process_directives(yaml_parser_t *parser, |
1283 | yaml_version_directive_t **version_directive_ref, | |
1284 | yaml_tag_directive_t **tag_directives_start_ref, | |
1285 | yaml_tag_directive_t **tag_directives_end_ref) | |
ab01bac8 KS |
1286 | { |
1287 | yaml_tag_directive_t default_tag_directives[] = { | |
1288 | {(yaml_char_t *)"!", (yaml_char_t *)"!"}, | |
1289 | {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, | |
1290 | {NULL, NULL} | |
1291 | }; | |
ab01bac8 | 1292 | yaml_tag_directive_t *default_tag_directive; |
625fcfe9 KS |
1293 | yaml_version_directive_t *version_directive = NULL; |
1294 | struct { | |
1295 | yaml_tag_directive_t *start; | |
1296 | yaml_tag_directive_t *end; | |
1297 | yaml_tag_directive_t *top; | |
1298 | } tag_directives = { NULL, NULL, NULL }; | |
ab01bac8 KS |
1299 | yaml_token_t *token; |
1300 | ||
625fcfe9 KS |
1301 | if (!STACK_INIT(parser, tag_directives, INITIAL_STACK_SIZE)) |
1302 | goto error; | |
1303 | ||
1304 | token = PEEK_TOKEN(parser); | |
1305 | if (!token) goto error; | |
ab01bac8 KS |
1306 | |
1307 | while (token->type == YAML_VERSION_DIRECTIVE_TOKEN || | |
1308 | token->type == YAML_TAG_DIRECTIVE_TOKEN) | |
1309 | { | |
1310 | if (token->type == YAML_VERSION_DIRECTIVE_TOKEN) { | |
625fcfe9 KS |
1311 | if (version_directive) { |
1312 | yaml_parser_set_parser_error(parser, | |
ab01bac8 | 1313 | "found duplicate %YAML directive", token->start_mark); |
625fcfe9 | 1314 | goto error; |
ab01bac8 KS |
1315 | } |
1316 | if (token->data.version_directive.major != 1 | |
1317 | && token->data.version_directive.minor != 1) { | |
625fcfe9 | 1318 | yaml_parser_set_parser_error(parser, |
ab01bac8 | 1319 | "found incompatible YAML document", token->start_mark); |
625fcfe9 | 1320 | goto error; |
ab01bac8 | 1321 | } |
625fcfe9 KS |
1322 | version_directive = yaml_malloc(sizeof(yaml_version_directive_t)); |
1323 | if (!version_directive) { | |
ab01bac8 | 1324 | parser->error = YAML_MEMORY_ERROR; |
625fcfe9 | 1325 | goto error; |
ab01bac8 | 1326 | } |
625fcfe9 KS |
1327 | version_directive->major = token->data.version_directive.major; |
1328 | version_directive->minor = token->data.version_directive.minor; | |
ab01bac8 KS |
1329 | } |
1330 | ||
1331 | else if (token->type == YAML_TAG_DIRECTIVE_TOKEN) { | |
1332 | yaml_tag_directive_t value = { | |
1333 | token->data.tag_directive.handle, | |
1334 | token->data.tag_directive.prefix | |
1335 | }; | |
625fcfe9 KS |
1336 | if (!yaml_parser_append_tag_directive(parser, value, 0, |
1337 | token->start_mark)) | |
1338 | goto error; | |
1339 | if (!PUSH(parser, tag_directives, value)) | |
1340 | goto error; | |
ab01bac8 | 1341 | } |
ab01bac8 | 1342 | |
625fcfe9 KS |
1343 | SKIP_TOKEN(parser); |
1344 | token = PEEK_TOKEN(parser); | |
1345 | if (!token) goto error; | |
1346 | } | |
1347 | ||
ab01bac8 KS |
1348 | for (default_tag_directive = default_tag_directives; |
1349 | default_tag_directive->handle; default_tag_directive++) { | |
625fcfe9 KS |
1350 | if (!yaml_parser_append_tag_directive(parser, *default_tag_directive, 1, |
1351 | token->start_mark)) | |
1352 | goto error; | |
1353 | } | |
1354 | ||
1355 | if (version_directive_ref) { | |
1356 | *version_directive_ref = version_directive; | |
1357 | } | |
1358 | if (tag_directives_start_ref) { | |
1359 | if (STACK_EMPTY(parser, tag_directives)) { | |
1360 | *tag_directives_start_ref = *tag_directives_end_ref = NULL; | |
ab01bac8 | 1361 | } |
625fcfe9 KS |
1362 | else { |
1363 | *tag_directives_start_ref = tag_directives.start; | |
1364 | *tag_directives_end_ref = tag_directives.end; | |
ab01bac8 KS |
1365 | } |
1366 | } | |
625fcfe9 | 1367 | |
ab01bac8 | 1368 | return 1; |
625fcfe9 KS |
1369 | |
1370 | error: | |
1371 | yaml_free(version_directive); | |
1372 | while (!STACK_EMPTY(parser, tag_directives)) { | |
1373 | yaml_tag_directive_t tag_directive = POP(parser, tag_directives); | |
1374 | yaml_free(tag_directive.handle); | |
1375 | yaml_free(tag_directive.prefix); | |
1376 | } | |
1377 | STACK_DEL(parser, tag_directives); | |
1378 | return 0; | |
1379 | } | |
1380 | ||
1381 | static int | |
1382 | yaml_parser_append_tag_directive(yaml_parser_t *parser, | |
1383 | yaml_tag_directive_t value, int allow_duplicates, yaml_mark_t mark) | |
1384 | { | |
1385 | yaml_tag_directive_t *tag_directive; | |
1386 | yaml_tag_directive_t copy = { NULL, NULL }; | |
1387 | int length; | |
1388 | ||
1389 | for (tag_directive = parser->tag_directives.start; | |
1390 | tag_directive != parser->tag_directives.top; tag_directive ++) { | |
1391 | if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { | |
1392 | if (allow_duplicates) | |
1393 | return 1; | |
1394 | return yaml_parser_set_parser_error(parser, | |
1395 | "found duplicate %TAG directive", mark); | |
1396 | } | |
1397 | } | |
1398 | ||
1399 | copy.handle = (yaml_char_t *)yaml_strdup((char *)value.handle); | |
1400 | copy.prefix = (yaml_char_t *)yaml_strdup((char *)value.prefix); | |
1401 | if (!copy.handle || !copy.prefix) { | |
1402 | parser->error = YAML_MEMORY_ERROR; | |
1403 | goto error; | |
1404 | } | |
1405 | ||
1406 | if (!PUSH(parser, parser->tag_directives, copy)) | |
1407 | goto error; | |
1408 | ||
1409 | return 1; | |
1410 | ||
1411 | error: | |
1412 | yaml_free(copy.handle); | |
1413 | yaml_free(copy.prefix); | |
1414 | return 0; | |
ab01bac8 | 1415 | } |
52fba2c6 | 1416 |