Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | |
| 2 | #include "yaml_private.h" |
| 3 | |
| 4 | /* |
| 5 | * Flush the buffer if needed. |
| 6 | */ |
| 7 | |
| 8 | #define FLUSH(emitter) \ |
| 9 | ((emitter->buffer.pointer+5 < emitter->buffer.end) \ |
| 10 | || yaml_emitter_flush(emitter)) |
| 11 | |
| 12 | /* |
| 13 | * Put a character to the output buffer. |
| 14 | */ |
| 15 | |
| 16 | #define PUT(emitter,value) \ |
| 17 | (FLUSH(emitter) \ |
| 18 | && (*(emitter->buffer.pointer++) = (yaml_char_t)(value), \ |
| 19 | emitter->column ++, \ |
| 20 | 1)) |
| 21 | |
| 22 | /* |
| 23 | * Put a line break to the output buffer. |
| 24 | */ |
| 25 | |
| 26 | #define PUT_BREAK(emitter) \ |
| 27 | (FLUSH(emitter) \ |
| 28 | && ((emitter->line_break == YAML_CR_BREAK ? \ |
| 29 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\r') : \ |
| 30 | emitter->line_break == YAML_LN_BREAK ? \ |
| 31 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\n') : \ |
| 32 | emitter->line_break == YAML_CRLN_BREAK ? \ |
| 33 | (*(emitter->buffer.pointer++) = (yaml_char_t) '\r', \ |
| 34 | *(emitter->buffer.pointer++) = (yaml_char_t) '\n') : 0), \ |
| 35 | emitter->column = 0, \ |
| 36 | emitter->line ++, \ |
| 37 | 1)) |
| 38 | |
| 39 | /* |
| 40 | * Copy a character from a string into buffer. |
| 41 | */ |
| 42 | |
| 43 | #define WRITE(emitter,string) \ |
| 44 | (FLUSH(emitter) \ |
| 45 | && (COPY(emitter->buffer,string), \ |
| 46 | emitter->column ++, \ |
| 47 | 1)) |
| 48 | |
| 49 | /* |
| 50 | * Copy a line break character from a string into buffer. |
| 51 | */ |
| 52 | |
| 53 | #define WRITE_BREAK(emitter,string) \ |
| 54 | (FLUSH(emitter) \ |
| 55 | && (CHECK(string,'\n') ? \ |
| 56 | (PUT_BREAK(emitter), \ |
| 57 | string.pointer ++, \ |
| 58 | 1) : \ |
| 59 | (COPY(emitter->buffer,string), \ |
| 60 | emitter->column = 0, \ |
| 61 | emitter->line ++, \ |
| 62 | 1))) |
| 63 | |
| 64 | /* |
| 65 | * API functions. |
| 66 | */ |
| 67 | |
| 68 | YAML_DECLARE(int) |
| 69 | yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event); |
| 70 | |
| 71 | /* |
| 72 | * Utility functions. |
| 73 | */ |
| 74 | |
| 75 | static int |
| 76 | yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem); |
| 77 | |
| 78 | static int |
| 79 | yaml_emitter_need_more_events(yaml_emitter_t *emitter); |
| 80 | |
| 81 | static int |
| 82 | yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, |
| 83 | yaml_tag_directive_t value, int allow_duplicates); |
| 84 | |
| 85 | static int |
| 86 | yaml_emitter_increase_indent(yaml_emitter_t *emitter, |
| 87 | int flow, int indentless); |
| 88 | |
| 89 | /* |
| 90 | * State functions. |
| 91 | */ |
| 92 | |
| 93 | static int |
| 94 | yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event); |
| 95 | |
| 96 | static int |
| 97 | yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, |
| 98 | yaml_event_t *event); |
| 99 | |
| 100 | static int |
| 101 | yaml_emitter_emit_document_start(yaml_emitter_t *emitter, |
| 102 | yaml_event_t *event, int first); |
| 103 | |
| 104 | static int |
| 105 | yaml_emitter_emit_document_content(yaml_emitter_t *emitter, |
| 106 | yaml_event_t *event); |
| 107 | |
| 108 | static int |
| 109 | yaml_emitter_emit_document_end(yaml_emitter_t *emitter, |
| 110 | yaml_event_t *event); |
| 111 | |
| 112 | static int |
| 113 | yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, |
| 114 | yaml_event_t *event, int first); |
| 115 | |
| 116 | static int |
| 117 | yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, |
| 118 | yaml_event_t *event, int first); |
| 119 | |
| 120 | static int |
| 121 | yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, |
| 122 | yaml_event_t *event, int simple); |
| 123 | |
| 124 | static int |
| 125 | yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, |
| 126 | yaml_event_t *event, int first); |
| 127 | |
| 128 | static int |
| 129 | yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, |
| 130 | yaml_event_t *event, int first); |
| 131 | |
| 132 | static int |
| 133 | yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, |
| 134 | yaml_event_t *event, int simple); |
| 135 | |
| 136 | static int |
| 137 | yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, |
| 138 | int root, int sequence, int mapping, int simple_key); |
| 139 | |
| 140 | static int |
| 141 | yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event); |
| 142 | |
| 143 | static int |
| 144 | yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event); |
| 145 | |
| 146 | static int |
| 147 | yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event); |
| 148 | |
| 149 | static int |
| 150 | yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event); |
| 151 | |
| 152 | /* |
| 153 | * Checkers. |
| 154 | */ |
| 155 | |
| 156 | static int |
| 157 | yaml_emitter_check_empty_document(yaml_emitter_t *emitter); |
| 158 | |
| 159 | static int |
| 160 | yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter); |
| 161 | |
| 162 | static int |
| 163 | yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter); |
| 164 | |
| 165 | static int |
| 166 | yaml_emitter_check_simple_key(yaml_emitter_t *emitter); |
| 167 | |
| 168 | static int |
| 169 | yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event); |
| 170 | |
| 171 | /* |
| 172 | * Processors. |
| 173 | */ |
| 174 | |
| 175 | static int |
| 176 | yaml_emitter_process_anchor(yaml_emitter_t *emitter); |
| 177 | |
| 178 | static int |
| 179 | yaml_emitter_process_tag(yaml_emitter_t *emitter); |
| 180 | |
| 181 | static int |
| 182 | yaml_emitter_process_scalar(yaml_emitter_t *emitter); |
| 183 | |
| 184 | /* |
| 185 | * Analyzers. |
| 186 | */ |
| 187 | |
| 188 | static int |
| 189 | yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, |
| 190 | yaml_version_directive_t version_directive); |
| 191 | |
| 192 | static int |
| 193 | yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, |
| 194 | yaml_tag_directive_t tag_directive); |
| 195 | |
| 196 | static int |
| 197 | yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, |
| 198 | yaml_char_t *anchor, int alias); |
| 199 | |
| 200 | static int |
| 201 | yaml_emitter_analyze_tag(yaml_emitter_t *emitter, |
| 202 | yaml_char_t *tag); |
| 203 | |
| 204 | static int |
| 205 | yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, |
| 206 | yaml_char_t *value, size_t length); |
| 207 | |
| 208 | static int |
| 209 | yaml_emitter_analyze_event(yaml_emitter_t *emitter, |
| 210 | yaml_event_t *event); |
| 211 | |
| 212 | /* |
| 213 | * Writers. |
| 214 | */ |
| 215 | |
| 216 | static int |
| 217 | yaml_emitter_write_bom(yaml_emitter_t *emitter); |
| 218 | |
| 219 | static int |
| 220 | yaml_emitter_write_indent(yaml_emitter_t *emitter); |
| 221 | |
| 222 | static int |
| 223 | yaml_emitter_write_indicator(yaml_emitter_t *emitter, |
| 224 | char *indicator, int need_whitespace, |
| 225 | int is_whitespace, int is_indention); |
| 226 | |
| 227 | static int |
| 228 | yaml_emitter_write_anchor(yaml_emitter_t *emitter, |
| 229 | yaml_char_t *value, size_t length); |
| 230 | |
| 231 | static int |
| 232 | yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, |
| 233 | yaml_char_t *value, size_t length); |
| 234 | |
| 235 | static int |
| 236 | yaml_emitter_write_tag_content(yaml_emitter_t *emitter, |
| 237 | yaml_char_t *value, size_t length, int need_whitespace); |
| 238 | |
| 239 | static int |
| 240 | yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, |
| 241 | yaml_char_t *value, size_t length, int allow_breaks); |
| 242 | |
| 243 | static int |
| 244 | yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, |
| 245 | yaml_char_t *value, size_t length, int allow_breaks); |
| 246 | |
| 247 | static int |
| 248 | yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, |
| 249 | yaml_char_t *value, size_t length, int allow_breaks); |
| 250 | |
| 251 | static int |
| 252 | yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, |
| 253 | yaml_string_t string); |
| 254 | |
| 255 | static int |
| 256 | yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, |
| 257 | yaml_char_t *value, size_t length); |
| 258 | |
| 259 | static int |
| 260 | yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, |
| 261 | yaml_char_t *value, size_t length); |
| 262 | |
| 263 | /* |
| 264 | * Set an emitter error and return 0. |
| 265 | */ |
| 266 | |
| 267 | static int |
| 268 | yaml_emitter_set_emitter_error(yaml_emitter_t *emitter, const char *problem) |
| 269 | { |
| 270 | emitter->error = YAML_EMITTER_ERROR; |
| 271 | emitter->problem = problem; |
| 272 | |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | /* |
| 277 | * Emit an event. |
| 278 | */ |
| 279 | |
| 280 | YAML_DECLARE(int) |
| 281 | yaml_emitter_emit(yaml_emitter_t *emitter, yaml_event_t *event) |
| 282 | { |
| 283 | if (!ENQUEUE(emitter, emitter->events, *event)) { |
| 284 | yaml_event_delete(event); |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | while (!yaml_emitter_need_more_events(emitter)) { |
| 289 | if (!yaml_emitter_analyze_event(emitter, emitter->events.head)) |
| 290 | return 0; |
| 291 | if (!yaml_emitter_state_machine(emitter, emitter->events.head)) |
| 292 | return 0; |
| 293 | yaml_event_delete(&DEQUEUE(emitter, emitter->events)); |
| 294 | } |
| 295 | |
| 296 | return 1; |
| 297 | } |
| 298 | |
| 299 | /* |
| 300 | * Check if we need to accumulate more events before emitting. |
| 301 | * |
| 302 | * We accumulate extra |
| 303 | * - 1 event for DOCUMENT-START |
| 304 | * - 2 events for SEQUENCE-START |
| 305 | * - 3 events for MAPPING-START |
| 306 | */ |
| 307 | |
| 308 | static int |
| 309 | yaml_emitter_need_more_events(yaml_emitter_t *emitter) |
| 310 | { |
| 311 | int level = 0; |
| 312 | int accumulate = 0; |
| 313 | yaml_event_t *event; |
| 314 | |
| 315 | if (QUEUE_EMPTY(emitter, emitter->events)) |
| 316 | return 1; |
| 317 | |
| 318 | switch (emitter->events.head->type) { |
| 319 | case YAML_DOCUMENT_START_EVENT: |
| 320 | accumulate = 1; |
| 321 | break; |
| 322 | case YAML_SEQUENCE_START_EVENT: |
| 323 | accumulate = 2; |
| 324 | break; |
| 325 | case YAML_MAPPING_START_EVENT: |
| 326 | accumulate = 3; |
| 327 | break; |
| 328 | default: |
| 329 | return 0; |
| 330 | } |
| 331 | |
| 332 | if (emitter->events.tail - emitter->events.head > accumulate) |
| 333 | return 0; |
| 334 | |
| 335 | for (event = emitter->events.head; event != emitter->events.tail; event ++) { |
| 336 | switch (event->type) { |
| 337 | case YAML_STREAM_START_EVENT: |
| 338 | case YAML_DOCUMENT_START_EVENT: |
| 339 | case YAML_SEQUENCE_START_EVENT: |
| 340 | case YAML_MAPPING_START_EVENT: |
| 341 | level += 1; |
| 342 | break; |
| 343 | case YAML_STREAM_END_EVENT: |
| 344 | case YAML_DOCUMENT_END_EVENT: |
| 345 | case YAML_SEQUENCE_END_EVENT: |
| 346 | case YAML_MAPPING_END_EVENT: |
| 347 | level -= 1; |
| 348 | break; |
| 349 | default: |
| 350 | break; |
| 351 | } |
| 352 | if (!level) |
| 353 | return 0; |
| 354 | } |
| 355 | |
| 356 | return 1; |
| 357 | } |
| 358 | |
| 359 | /* |
| 360 | * Append a directive to the directives stack. |
| 361 | */ |
| 362 | |
| 363 | static int |
| 364 | yaml_emitter_append_tag_directive(yaml_emitter_t *emitter, |
| 365 | yaml_tag_directive_t value, int allow_duplicates) |
| 366 | { |
| 367 | yaml_tag_directive_t *tag_directive; |
| 368 | yaml_tag_directive_t copy = { NULL, NULL }; |
| 369 | |
| 370 | for (tag_directive = emitter->tag_directives.start; |
| 371 | tag_directive != emitter->tag_directives.top; tag_directive ++) { |
| 372 | if (strcmp((char *)value.handle, (char *)tag_directive->handle) == 0) { |
| 373 | if (allow_duplicates) |
| 374 | return 1; |
| 375 | return yaml_emitter_set_emitter_error(emitter, |
| 376 | "duplicate %TAG directive"); |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | copy.handle = yaml_strdup(value.handle); |
| 381 | copy.prefix = yaml_strdup(value.prefix); |
| 382 | if (!copy.handle || !copy.prefix) { |
| 383 | emitter->error = YAML_MEMORY_ERROR; |
| 384 | goto error; |
| 385 | } |
| 386 | |
| 387 | if (!PUSH(emitter, emitter->tag_directives, copy)) |
| 388 | goto error; |
| 389 | |
| 390 | return 1; |
| 391 | |
| 392 | error: |
| 393 | yaml_free(copy.handle); |
| 394 | yaml_free(copy.prefix); |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | /* |
| 399 | * Increase the indentation level. |
| 400 | */ |
| 401 | |
| 402 | static int |
| 403 | yaml_emitter_increase_indent(yaml_emitter_t *emitter, |
| 404 | int flow, int indentless) |
| 405 | { |
| 406 | if (!PUSH(emitter, emitter->indents, emitter->indent)) |
| 407 | return 0; |
| 408 | |
| 409 | if (emitter->indent < 0) { |
| 410 | emitter->indent = flow ? emitter->best_indent : 0; |
| 411 | } |
| 412 | else if (!indentless) { |
| 413 | emitter->indent += emitter->best_indent; |
| 414 | } |
| 415 | |
| 416 | return 1; |
| 417 | } |
| 418 | |
| 419 | /* |
| 420 | * State dispatcher. |
| 421 | */ |
| 422 | |
| 423 | static int |
| 424 | yaml_emitter_state_machine(yaml_emitter_t *emitter, yaml_event_t *event) |
| 425 | { |
| 426 | switch (emitter->state) |
| 427 | { |
| 428 | case YAML_EMIT_STREAM_START_STATE: |
| 429 | return yaml_emitter_emit_stream_start(emitter, event); |
| 430 | |
| 431 | case YAML_EMIT_FIRST_DOCUMENT_START_STATE: |
| 432 | return yaml_emitter_emit_document_start(emitter, event, 1); |
| 433 | |
| 434 | case YAML_EMIT_DOCUMENT_START_STATE: |
| 435 | return yaml_emitter_emit_document_start(emitter, event, 0); |
| 436 | |
| 437 | case YAML_EMIT_DOCUMENT_CONTENT_STATE: |
| 438 | return yaml_emitter_emit_document_content(emitter, event); |
| 439 | |
| 440 | case YAML_EMIT_DOCUMENT_END_STATE: |
| 441 | return yaml_emitter_emit_document_end(emitter, event); |
| 442 | |
| 443 | case YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: |
| 444 | return yaml_emitter_emit_flow_sequence_item(emitter, event, 1); |
| 445 | |
| 446 | case YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE: |
| 447 | return yaml_emitter_emit_flow_sequence_item(emitter, event, 0); |
| 448 | |
| 449 | case YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: |
| 450 | return yaml_emitter_emit_flow_mapping_key(emitter, event, 1); |
| 451 | |
| 452 | case YAML_EMIT_FLOW_MAPPING_KEY_STATE: |
| 453 | return yaml_emitter_emit_flow_mapping_key(emitter, event, 0); |
| 454 | |
| 455 | case YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: |
| 456 | return yaml_emitter_emit_flow_mapping_value(emitter, event, 1); |
| 457 | |
| 458 | case YAML_EMIT_FLOW_MAPPING_VALUE_STATE: |
| 459 | return yaml_emitter_emit_flow_mapping_value(emitter, event, 0); |
| 460 | |
| 461 | case YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: |
| 462 | return yaml_emitter_emit_block_sequence_item(emitter, event, 1); |
| 463 | |
| 464 | case YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE: |
| 465 | return yaml_emitter_emit_block_sequence_item(emitter, event, 0); |
| 466 | |
| 467 | case YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: |
| 468 | return yaml_emitter_emit_block_mapping_key(emitter, event, 1); |
| 469 | |
| 470 | case YAML_EMIT_BLOCK_MAPPING_KEY_STATE: |
| 471 | return yaml_emitter_emit_block_mapping_key(emitter, event, 0); |
| 472 | |
| 473 | case YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: |
| 474 | return yaml_emitter_emit_block_mapping_value(emitter, event, 1); |
| 475 | |
| 476 | case YAML_EMIT_BLOCK_MAPPING_VALUE_STATE: |
| 477 | return yaml_emitter_emit_block_mapping_value(emitter, event, 0); |
| 478 | |
| 479 | case YAML_EMIT_END_STATE: |
| 480 | return yaml_emitter_set_emitter_error(emitter, |
| 481 | "expected nothing after STREAM-END"); |
| 482 | |
| 483 | default: |
| 484 | assert(1); /* Invalid state. */ |
| 485 | } |
| 486 | |
| 487 | return 0; |
| 488 | } |
| 489 | |
| 490 | /* |
| 491 | * Expect STREAM-START. |
| 492 | */ |
| 493 | |
| 494 | static int |
| 495 | yaml_emitter_emit_stream_start(yaml_emitter_t *emitter, |
| 496 | yaml_event_t *event) |
| 497 | { |
| 498 | if (event->type == YAML_STREAM_START_EVENT) |
| 499 | { |
| 500 | if (!emitter->encoding) { |
| 501 | emitter->encoding = event->data.stream_start.encoding; |
| 502 | } |
| 503 | |
| 504 | if (!emitter->encoding) { |
| 505 | emitter->encoding = YAML_UTF8_ENCODING; |
| 506 | } |
| 507 | |
| 508 | if (emitter->best_indent < 2 || emitter->best_indent > 9) { |
| 509 | emitter->best_indent = 2; |
| 510 | } |
| 511 | |
| 512 | if (emitter->best_width >= 0 |
| 513 | && emitter->best_width <= emitter->best_indent*2) { |
| 514 | emitter->best_width = 80; |
| 515 | } |
| 516 | |
| 517 | if (emitter->best_width < 0) { |
| 518 | emitter->best_width = INT_MAX; |
| 519 | } |
| 520 | |
| 521 | if (!emitter->line_break) { |
| 522 | emitter->line_break = YAML_LN_BREAK; |
| 523 | } |
| 524 | |
| 525 | emitter->indent = -1; |
| 526 | |
| 527 | emitter->line = 0; |
| 528 | emitter->column = 0; |
| 529 | emitter->whitespace = 1; |
| 530 | emitter->indention = 1; |
| 531 | |
| 532 | if (emitter->encoding != YAML_UTF8_ENCODING) { |
| 533 | if (!yaml_emitter_write_bom(emitter)) |
| 534 | return 0; |
| 535 | } |
| 536 | |
| 537 | emitter->state = YAML_EMIT_FIRST_DOCUMENT_START_STATE; |
| 538 | |
| 539 | return 1; |
| 540 | } |
| 541 | |
| 542 | return yaml_emitter_set_emitter_error(emitter, |
| 543 | "expected STREAM-START"); |
| 544 | } |
| 545 | |
| 546 | /* |
| 547 | * Expect DOCUMENT-START or STREAM-END. |
| 548 | */ |
| 549 | |
| 550 | static int |
| 551 | yaml_emitter_emit_document_start(yaml_emitter_t *emitter, |
| 552 | yaml_event_t *event, int first) |
| 553 | { |
| 554 | if (event->type == YAML_DOCUMENT_START_EVENT) |
| 555 | { |
| 556 | yaml_tag_directive_t default_tag_directives[] = { |
| 557 | {(yaml_char_t *)"!", (yaml_char_t *)"!"}, |
| 558 | {(yaml_char_t *)"!!", (yaml_char_t *)"tag:yaml.org,2002:"}, |
| 559 | {NULL, NULL} |
| 560 | }; |
| 561 | yaml_tag_directive_t *tag_directive; |
| 562 | int implicit; |
| 563 | |
| 564 | if (event->data.document_start.version_directive) { |
| 565 | if (!yaml_emitter_analyze_version_directive(emitter, |
| 566 | *event->data.document_start.version_directive)) |
| 567 | return 0; |
| 568 | } |
| 569 | |
| 570 | for (tag_directive = event->data.document_start.tag_directives.start; |
| 571 | tag_directive != event->data.document_start.tag_directives.end; |
| 572 | tag_directive ++) { |
| 573 | if (!yaml_emitter_analyze_tag_directive(emitter, *tag_directive)) |
| 574 | return 0; |
| 575 | if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 0)) |
| 576 | return 0; |
| 577 | } |
| 578 | |
| 579 | for (tag_directive = default_tag_directives; |
| 580 | tag_directive->handle; tag_directive ++) { |
| 581 | if (!yaml_emitter_append_tag_directive(emitter, *tag_directive, 1)) |
| 582 | return 0; |
| 583 | } |
| 584 | |
| 585 | implicit = event->data.document_start.implicit; |
| 586 | if (!first || emitter->canonical) { |
| 587 | implicit = 0; |
| 588 | } |
| 589 | |
| 590 | if ((event->data.document_start.version_directive || |
| 591 | (event->data.document_start.tag_directives.start |
| 592 | != event->data.document_start.tag_directives.end)) && |
| 593 | emitter->open_ended) |
| 594 | { |
| 595 | if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) |
| 596 | return 0; |
| 597 | if (!yaml_emitter_write_indent(emitter)) |
| 598 | return 0; |
| 599 | } |
| 600 | |
| 601 | if (event->data.document_start.version_directive) { |
| 602 | implicit = 0; |
| 603 | if (!yaml_emitter_write_indicator(emitter, "%YAML", 1, 0, 0)) |
| 604 | return 0; |
| 605 | if (!yaml_emitter_write_indicator(emitter, "1.1", 1, 0, 0)) |
| 606 | return 0; |
| 607 | if (!yaml_emitter_write_indent(emitter)) |
| 608 | return 0; |
| 609 | } |
| 610 | |
| 611 | if (event->data.document_start.tag_directives.start |
| 612 | != event->data.document_start.tag_directives.end) { |
| 613 | implicit = 0; |
| 614 | for (tag_directive = event->data.document_start.tag_directives.start; |
| 615 | tag_directive != event->data.document_start.tag_directives.end; |
| 616 | tag_directive ++) { |
| 617 | if (!yaml_emitter_write_indicator(emitter, "%TAG", 1, 0, 0)) |
| 618 | return 0; |
| 619 | if (!yaml_emitter_write_tag_handle(emitter, tag_directive->handle, |
| 620 | strlen((char *)tag_directive->handle))) |
| 621 | return 0; |
| 622 | if (!yaml_emitter_write_tag_content(emitter, tag_directive->prefix, |
| 623 | strlen((char *)tag_directive->prefix), 1)) |
| 624 | return 0; |
| 625 | if (!yaml_emitter_write_indent(emitter)) |
| 626 | return 0; |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | if (yaml_emitter_check_empty_document(emitter)) { |
| 631 | implicit = 0; |
| 632 | } |
| 633 | |
| 634 | if (!implicit) { |
| 635 | if (!yaml_emitter_write_indent(emitter)) |
| 636 | return 0; |
| 637 | if (!yaml_emitter_write_indicator(emitter, "---", 1, 0, 0)) |
| 638 | return 0; |
| 639 | if (emitter->canonical) { |
| 640 | if (!yaml_emitter_write_indent(emitter)) |
| 641 | return 0; |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | emitter->state = YAML_EMIT_DOCUMENT_CONTENT_STATE; |
| 646 | |
| 647 | return 1; |
| 648 | } |
| 649 | |
| 650 | else if (event->type == YAML_STREAM_END_EVENT) |
| 651 | { |
| 652 | if (emitter->open_ended) |
| 653 | { |
| 654 | if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) |
| 655 | return 0; |
| 656 | if (!yaml_emitter_write_indent(emitter)) |
| 657 | return 0; |
| 658 | } |
| 659 | |
| 660 | if (!yaml_emitter_flush(emitter)) |
| 661 | return 0; |
| 662 | |
| 663 | emitter->state = YAML_EMIT_END_STATE; |
| 664 | |
| 665 | return 1; |
| 666 | } |
| 667 | |
| 668 | return yaml_emitter_set_emitter_error(emitter, |
| 669 | "expected DOCUMENT-START or STREAM-END"); |
| 670 | } |
| 671 | |
| 672 | /* |
| 673 | * Expect the root node. |
| 674 | */ |
| 675 | |
| 676 | static int |
| 677 | yaml_emitter_emit_document_content(yaml_emitter_t *emitter, |
| 678 | yaml_event_t *event) |
| 679 | { |
| 680 | if (!PUSH(emitter, emitter->states, YAML_EMIT_DOCUMENT_END_STATE)) |
| 681 | return 0; |
| 682 | |
| 683 | return yaml_emitter_emit_node(emitter, event, 1, 0, 0, 0); |
| 684 | } |
| 685 | |
| 686 | /* |
| 687 | * Expect DOCUMENT-END. |
| 688 | */ |
| 689 | |
| 690 | static int |
| 691 | yaml_emitter_emit_document_end(yaml_emitter_t *emitter, |
| 692 | yaml_event_t *event) |
| 693 | { |
| 694 | if (event->type == YAML_DOCUMENT_END_EVENT) |
| 695 | { |
| 696 | if (!yaml_emitter_write_indent(emitter)) |
| 697 | return 0; |
| 698 | if (!event->data.document_end.implicit) { |
| 699 | if (!yaml_emitter_write_indicator(emitter, "...", 1, 0, 0)) |
| 700 | return 0; |
| 701 | if (!yaml_emitter_write_indent(emitter)) |
| 702 | return 0; |
| 703 | } |
| 704 | if (!yaml_emitter_flush(emitter)) |
| 705 | return 0; |
| 706 | |
| 707 | emitter->state = YAML_EMIT_DOCUMENT_START_STATE; |
| 708 | |
| 709 | while (!STACK_EMPTY(emitter, emitter->tag_directives)) { |
| 710 | yaml_tag_directive_t tag_directive = POP(emitter, |
| 711 | emitter->tag_directives); |
| 712 | yaml_free(tag_directive.handle); |
| 713 | yaml_free(tag_directive.prefix); |
| 714 | } |
| 715 | |
| 716 | return 1; |
| 717 | } |
| 718 | |
| 719 | return yaml_emitter_set_emitter_error(emitter, |
| 720 | "expected DOCUMENT-END"); |
| 721 | } |
| 722 | |
| 723 | /* |
| 724 | * |
| 725 | * Expect a flow item node. |
| 726 | */ |
| 727 | |
| 728 | static int |
| 729 | yaml_emitter_emit_flow_sequence_item(yaml_emitter_t *emitter, |
| 730 | yaml_event_t *event, int first) |
| 731 | { |
| 732 | if (first) |
| 733 | { |
| 734 | if (!yaml_emitter_write_indicator(emitter, "[", 1, 1, 0)) |
| 735 | return 0; |
| 736 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
| 737 | return 0; |
| 738 | emitter->flow_level ++; |
| 739 | } |
| 740 | |
| 741 | if (event->type == YAML_SEQUENCE_END_EVENT) |
| 742 | { |
| 743 | emitter->flow_level --; |
| 744 | emitter->indent = POP(emitter, emitter->indents); |
| 745 | if (emitter->canonical && !first) { |
| 746 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
| 747 | return 0; |
| 748 | if (!yaml_emitter_write_indent(emitter)) |
| 749 | return 0; |
| 750 | } |
| 751 | if (!yaml_emitter_write_indicator(emitter, "]", 0, 0, 0)) |
| 752 | return 0; |
| 753 | emitter->state = POP(emitter, emitter->states); |
| 754 | |
| 755 | return 1; |
| 756 | } |
| 757 | |
| 758 | if (!first) { |
| 759 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
| 760 | return 0; |
| 761 | } |
| 762 | |
| 763 | if (emitter->canonical || emitter->column > emitter->best_width) { |
| 764 | if (!yaml_emitter_write_indent(emitter)) |
| 765 | return 0; |
| 766 | } |
| 767 | if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_SEQUENCE_ITEM_STATE)) |
| 768 | return 0; |
| 769 | |
| 770 | return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); |
| 771 | } |
| 772 | |
| 773 | /* |
| 774 | * Expect a flow key node. |
| 775 | */ |
| 776 | |
| 777 | static int |
| 778 | yaml_emitter_emit_flow_mapping_key(yaml_emitter_t *emitter, |
| 779 | yaml_event_t *event, int first) |
| 780 | { |
| 781 | if (first) |
| 782 | { |
| 783 | if (!yaml_emitter_write_indicator(emitter, "{", 1, 1, 0)) |
| 784 | return 0; |
| 785 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
| 786 | return 0; |
| 787 | emitter->flow_level ++; |
| 788 | } |
| 789 | |
| 790 | if (event->type == YAML_MAPPING_END_EVENT) |
| 791 | { |
| 792 | emitter->flow_level --; |
| 793 | emitter->indent = POP(emitter, emitter->indents); |
| 794 | if (emitter->canonical && !first) { |
| 795 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
| 796 | return 0; |
| 797 | if (!yaml_emitter_write_indent(emitter)) |
| 798 | return 0; |
| 799 | } |
| 800 | if (!yaml_emitter_write_indicator(emitter, "}", 0, 0, 0)) |
| 801 | return 0; |
| 802 | emitter->state = POP(emitter, emitter->states); |
| 803 | |
| 804 | return 1; |
| 805 | } |
| 806 | |
| 807 | if (!first) { |
| 808 | if (!yaml_emitter_write_indicator(emitter, ",", 0, 0, 0)) |
| 809 | return 0; |
| 810 | } |
| 811 | if (emitter->canonical || emitter->column > emitter->best_width) { |
| 812 | if (!yaml_emitter_write_indent(emitter)) |
| 813 | return 0; |
| 814 | } |
| 815 | |
| 816 | if (!emitter->canonical && yaml_emitter_check_simple_key(emitter)) |
| 817 | { |
| 818 | if (!PUSH(emitter, emitter->states, |
| 819 | YAML_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE)) |
| 820 | return 0; |
| 821 | |
| 822 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); |
| 823 | } |
| 824 | else |
| 825 | { |
| 826 | if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 0)) |
| 827 | return 0; |
| 828 | if (!PUSH(emitter, emitter->states, |
| 829 | YAML_EMIT_FLOW_MAPPING_VALUE_STATE)) |
| 830 | return 0; |
| 831 | |
| 832 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * Expect a flow value node. |
| 838 | */ |
| 839 | |
| 840 | static int |
| 841 | yaml_emitter_emit_flow_mapping_value(yaml_emitter_t *emitter, |
| 842 | yaml_event_t *event, int simple) |
| 843 | { |
| 844 | if (simple) { |
| 845 | if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) |
| 846 | return 0; |
| 847 | } |
| 848 | else { |
| 849 | if (emitter->canonical || emitter->column > emitter->best_width) { |
| 850 | if (!yaml_emitter_write_indent(emitter)) |
| 851 | return 0; |
| 852 | } |
| 853 | if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 0)) |
| 854 | return 0; |
| 855 | } |
| 856 | if (!PUSH(emitter, emitter->states, YAML_EMIT_FLOW_MAPPING_KEY_STATE)) |
| 857 | return 0; |
| 858 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
| 859 | } |
| 860 | |
| 861 | /* |
| 862 | * Expect a block item node. |
| 863 | */ |
| 864 | |
| 865 | static int |
| 866 | yaml_emitter_emit_block_sequence_item(yaml_emitter_t *emitter, |
| 867 | yaml_event_t *event, int first) |
| 868 | { |
| 869 | if (first) |
| 870 | { |
| 871 | if (!yaml_emitter_increase_indent(emitter, 0, |
| 872 | (emitter->mapping_context && !emitter->indention))) |
| 873 | return 0; |
| 874 | } |
| 875 | |
| 876 | if (event->type == YAML_SEQUENCE_END_EVENT) |
| 877 | { |
| 878 | emitter->indent = POP(emitter, emitter->indents); |
| 879 | emitter->state = POP(emitter, emitter->states); |
| 880 | |
| 881 | return 1; |
| 882 | } |
| 883 | |
| 884 | if (!yaml_emitter_write_indent(emitter)) |
| 885 | return 0; |
| 886 | if (!yaml_emitter_write_indicator(emitter, "-", 1, 0, 1)) |
| 887 | return 0; |
| 888 | if (!PUSH(emitter, emitter->states, |
| 889 | YAML_EMIT_BLOCK_SEQUENCE_ITEM_STATE)) |
| 890 | return 0; |
| 891 | |
| 892 | return yaml_emitter_emit_node(emitter, event, 0, 1, 0, 0); |
| 893 | } |
| 894 | |
| 895 | /* |
| 896 | * Expect a block key node. |
| 897 | */ |
| 898 | |
| 899 | static int |
| 900 | yaml_emitter_emit_block_mapping_key(yaml_emitter_t *emitter, |
| 901 | yaml_event_t *event, int first) |
| 902 | { |
| 903 | if (first) |
| 904 | { |
| 905 | if (!yaml_emitter_increase_indent(emitter, 0, 0)) |
| 906 | return 0; |
| 907 | } |
| 908 | |
| 909 | if (event->type == YAML_MAPPING_END_EVENT) |
| 910 | { |
| 911 | emitter->indent = POP(emitter, emitter->indents); |
| 912 | emitter->state = POP(emitter, emitter->states); |
| 913 | |
| 914 | return 1; |
| 915 | } |
| 916 | |
| 917 | if (!yaml_emitter_write_indent(emitter)) |
| 918 | return 0; |
| 919 | |
| 920 | if (yaml_emitter_check_simple_key(emitter)) |
| 921 | { |
| 922 | if (!PUSH(emitter, emitter->states, |
| 923 | YAML_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE)) |
| 924 | return 0; |
| 925 | |
| 926 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 1); |
| 927 | } |
| 928 | else |
| 929 | { |
| 930 | if (!yaml_emitter_write_indicator(emitter, "?", 1, 0, 1)) |
| 931 | return 0; |
| 932 | if (!PUSH(emitter, emitter->states, |
| 933 | YAML_EMIT_BLOCK_MAPPING_VALUE_STATE)) |
| 934 | return 0; |
| 935 | |
| 936 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | /* |
| 941 | * Expect a block value node. |
| 942 | */ |
| 943 | |
| 944 | static int |
| 945 | yaml_emitter_emit_block_mapping_value(yaml_emitter_t *emitter, |
| 946 | yaml_event_t *event, int simple) |
| 947 | { |
| 948 | if (simple) { |
| 949 | if (!yaml_emitter_write_indicator(emitter, ":", 0, 0, 0)) |
| 950 | return 0; |
| 951 | } |
| 952 | else { |
| 953 | if (!yaml_emitter_write_indent(emitter)) |
| 954 | return 0; |
| 955 | if (!yaml_emitter_write_indicator(emitter, ":", 1, 0, 1)) |
| 956 | return 0; |
| 957 | } |
| 958 | if (!PUSH(emitter, emitter->states, |
| 959 | YAML_EMIT_BLOCK_MAPPING_KEY_STATE)) |
| 960 | return 0; |
| 961 | |
| 962 | return yaml_emitter_emit_node(emitter, event, 0, 0, 1, 0); |
| 963 | } |
| 964 | |
| 965 | /* |
| 966 | * Expect a node. |
| 967 | */ |
| 968 | |
| 969 | static int |
| 970 | yaml_emitter_emit_node(yaml_emitter_t *emitter, yaml_event_t *event, |
| 971 | int root, int sequence, int mapping, int simple_key) |
| 972 | { |
| 973 | emitter->root_context = root; |
| 974 | emitter->sequence_context = sequence; |
| 975 | emitter->mapping_context = mapping; |
| 976 | emitter->simple_key_context = simple_key; |
| 977 | |
| 978 | switch (event->type) |
| 979 | { |
| 980 | case YAML_ALIAS_EVENT: |
| 981 | return yaml_emitter_emit_alias(emitter, event); |
| 982 | |
| 983 | case YAML_SCALAR_EVENT: |
| 984 | return yaml_emitter_emit_scalar(emitter, event); |
| 985 | |
| 986 | case YAML_SEQUENCE_START_EVENT: |
| 987 | return yaml_emitter_emit_sequence_start(emitter, event); |
| 988 | |
| 989 | case YAML_MAPPING_START_EVENT: |
| 990 | return yaml_emitter_emit_mapping_start(emitter, event); |
| 991 | |
| 992 | default: |
| 993 | return yaml_emitter_set_emitter_error(emitter, |
| 994 | "expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS"); |
| 995 | } |
| 996 | |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | /* |
| 1001 | * Expect ALIAS. |
| 1002 | */ |
| 1003 | |
| 1004 | static int |
| 1005 | yaml_emitter_emit_alias(yaml_emitter_t *emitter, yaml_event_t *event) |
| 1006 | { |
| 1007 | if (!yaml_emitter_process_anchor(emitter)) |
| 1008 | return 0; |
| 1009 | emitter->state = POP(emitter, emitter->states); |
| 1010 | |
| 1011 | return 1; |
| 1012 | } |
| 1013 | |
| 1014 | /* |
| 1015 | * Expect SCALAR. |
| 1016 | */ |
| 1017 | |
| 1018 | static int |
| 1019 | yaml_emitter_emit_scalar(yaml_emitter_t *emitter, yaml_event_t *event) |
| 1020 | { |
| 1021 | if (!yaml_emitter_select_scalar_style(emitter, event)) |
| 1022 | return 0; |
| 1023 | if (!yaml_emitter_process_anchor(emitter)) |
| 1024 | return 0; |
| 1025 | if (!yaml_emitter_process_tag(emitter)) |
| 1026 | return 0; |
| 1027 | if (!yaml_emitter_increase_indent(emitter, 1, 0)) |
| 1028 | return 0; |
| 1029 | if (!yaml_emitter_process_scalar(emitter)) |
| 1030 | return 0; |
| 1031 | emitter->indent = POP(emitter, emitter->indents); |
| 1032 | emitter->state = POP(emitter, emitter->states); |
| 1033 | |
| 1034 | return 1; |
| 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | * Expect SEQUENCE-START. |
| 1039 | */ |
| 1040 | |
| 1041 | static int |
| 1042 | yaml_emitter_emit_sequence_start(yaml_emitter_t *emitter, yaml_event_t *event) |
| 1043 | { |
| 1044 | if (!yaml_emitter_process_anchor(emitter)) |
| 1045 | return 0; |
| 1046 | if (!yaml_emitter_process_tag(emitter)) |
| 1047 | return 0; |
| 1048 | |
| 1049 | if (emitter->flow_level || emitter->canonical |
| 1050 | || event->data.sequence_start.style == YAML_FLOW_SEQUENCE_STYLE |
| 1051 | || yaml_emitter_check_empty_sequence(emitter)) { |
| 1052 | emitter->state = YAML_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE; |
| 1053 | } |
| 1054 | else { |
| 1055 | emitter->state = YAML_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE; |
| 1056 | } |
| 1057 | |
| 1058 | return 1; |
| 1059 | } |
| 1060 | |
| 1061 | /* |
| 1062 | * Expect MAPPING-START. |
| 1063 | */ |
| 1064 | |
| 1065 | static int |
| 1066 | yaml_emitter_emit_mapping_start(yaml_emitter_t *emitter, yaml_event_t *event) |
| 1067 | { |
| 1068 | if (!yaml_emitter_process_anchor(emitter)) |
| 1069 | return 0; |
| 1070 | if (!yaml_emitter_process_tag(emitter)) |
| 1071 | return 0; |
| 1072 | |
| 1073 | if (emitter->flow_level || emitter->canonical |
| 1074 | || event->data.mapping_start.style == YAML_FLOW_MAPPING_STYLE |
| 1075 | || yaml_emitter_check_empty_mapping(emitter)) { |
| 1076 | emitter->state = YAML_EMIT_FLOW_MAPPING_FIRST_KEY_STATE; |
| 1077 | } |
| 1078 | else { |
| 1079 | emitter->state = YAML_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE; |
| 1080 | } |
| 1081 | |
| 1082 | return 1; |
| 1083 | } |
| 1084 | |
| 1085 | /* |
| 1086 | * Check if the document content is an empty scalar. |
| 1087 | */ |
| 1088 | |
| 1089 | static int |
| 1090 | yaml_emitter_check_empty_document(yaml_emitter_t *emitter) |
| 1091 | { |
| 1092 | return 0; |
| 1093 | } |
| 1094 | |
| 1095 | /* |
| 1096 | * Check if the next events represent an empty sequence. |
| 1097 | */ |
| 1098 | |
| 1099 | static int |
| 1100 | yaml_emitter_check_empty_sequence(yaml_emitter_t *emitter) |
| 1101 | { |
| 1102 | if (emitter->events.tail - emitter->events.head < 2) |
| 1103 | return 0; |
| 1104 | |
| 1105 | return (emitter->events.head[0].type == YAML_SEQUENCE_START_EVENT |
| 1106 | && emitter->events.head[1].type == YAML_SEQUENCE_END_EVENT); |
| 1107 | } |
| 1108 | |
| 1109 | /* |
| 1110 | * Check if the next events represent an empty mapping. |
| 1111 | */ |
| 1112 | |
| 1113 | static int |
| 1114 | yaml_emitter_check_empty_mapping(yaml_emitter_t *emitter) |
| 1115 | { |
| 1116 | if (emitter->events.tail - emitter->events.head < 2) |
| 1117 | return 0; |
| 1118 | |
| 1119 | return (emitter->events.head[0].type == YAML_MAPPING_START_EVENT |
| 1120 | && emitter->events.head[1].type == YAML_MAPPING_END_EVENT); |
| 1121 | } |
| 1122 | |
| 1123 | /* |
| 1124 | * Check if the next node can be expressed as a simple key. |
| 1125 | */ |
| 1126 | |
| 1127 | static int |
| 1128 | yaml_emitter_check_simple_key(yaml_emitter_t *emitter) |
| 1129 | { |
| 1130 | yaml_event_t *event = emitter->events.head; |
| 1131 | size_t length = 0; |
| 1132 | |
| 1133 | switch (event->type) |
| 1134 | { |
| 1135 | case YAML_ALIAS_EVENT: |
| 1136 | length += emitter->anchor_data.anchor_length; |
| 1137 | break; |
| 1138 | |
| 1139 | case YAML_SCALAR_EVENT: |
| 1140 | if (emitter->scalar_data.multiline) |
| 1141 | return 0; |
| 1142 | length += emitter->anchor_data.anchor_length |
| 1143 | + emitter->tag_data.handle_length |
| 1144 | + emitter->tag_data.suffix_length |
| 1145 | + emitter->scalar_data.length; |
| 1146 | break; |
| 1147 | |
| 1148 | case YAML_SEQUENCE_START_EVENT: |
| 1149 | if (!yaml_emitter_check_empty_sequence(emitter)) |
| 1150 | return 0; |
| 1151 | length += emitter->anchor_data.anchor_length |
| 1152 | + emitter->tag_data.handle_length |
| 1153 | + emitter->tag_data.suffix_length; |
| 1154 | break; |
| 1155 | |
| 1156 | case YAML_MAPPING_START_EVENT: |
| 1157 | if (!yaml_emitter_check_empty_mapping(emitter)) |
| 1158 | return 0; |
| 1159 | length += emitter->anchor_data.anchor_length |
| 1160 | + emitter->tag_data.handle_length |
| 1161 | + emitter->tag_data.suffix_length; |
| 1162 | break; |
| 1163 | |
| 1164 | default: |
| 1165 | return 0; |
| 1166 | } |
| 1167 | |
| 1168 | if (length > 128) |
| 1169 | return 0; |
| 1170 | |
| 1171 | return 1; |
| 1172 | } |
| 1173 | |
| 1174 | /* |
| 1175 | * Determine an acceptable scalar style. |
| 1176 | */ |
| 1177 | |
| 1178 | static int |
| 1179 | yaml_emitter_select_scalar_style(yaml_emitter_t *emitter, yaml_event_t *event) |
| 1180 | { |
| 1181 | yaml_scalar_style_t style = event->data.scalar.style; |
| 1182 | int no_tag = (!emitter->tag_data.handle && !emitter->tag_data.suffix); |
| 1183 | |
| 1184 | if (no_tag && !event->data.scalar.plain_implicit |
| 1185 | && !event->data.scalar.quoted_implicit) { |
| 1186 | return yaml_emitter_set_emitter_error(emitter, |
| 1187 | "neither tag nor implicit flags are specified"); |
| 1188 | } |
| 1189 | |
| 1190 | if (style == YAML_ANY_SCALAR_STYLE) |
| 1191 | style = YAML_PLAIN_SCALAR_STYLE; |
| 1192 | |
| 1193 | if (emitter->canonical) |
| 1194 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
| 1195 | |
| 1196 | if (emitter->simple_key_context && emitter->scalar_data.multiline) |
| 1197 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
| 1198 | |
| 1199 | if (style == YAML_PLAIN_SCALAR_STYLE) |
| 1200 | { |
| 1201 | if ((emitter->flow_level && !emitter->scalar_data.flow_plain_allowed) |
| 1202 | || (!emitter->flow_level && !emitter->scalar_data.block_plain_allowed)) |
| 1203 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
| 1204 | if (!emitter->scalar_data.length |
| 1205 | && (emitter->flow_level || emitter->simple_key_context)) |
| 1206 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
| 1207 | if (no_tag && !event->data.scalar.plain_implicit) |
| 1208 | style = YAML_SINGLE_QUOTED_SCALAR_STYLE; |
| 1209 | } |
| 1210 | |
| 1211 | if (style == YAML_SINGLE_QUOTED_SCALAR_STYLE) |
| 1212 | { |
| 1213 | if (!emitter->scalar_data.single_quoted_allowed) |
| 1214 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
| 1215 | } |
| 1216 | |
| 1217 | if (style == YAML_LITERAL_SCALAR_STYLE || style == YAML_FOLDED_SCALAR_STYLE) |
| 1218 | { |
| 1219 | if (!emitter->scalar_data.block_allowed |
| 1220 | || emitter->flow_level || emitter->simple_key_context) |
| 1221 | style = YAML_DOUBLE_QUOTED_SCALAR_STYLE; |
| 1222 | } |
| 1223 | |
| 1224 | if (no_tag && !event->data.scalar.quoted_implicit |
| 1225 | && style != YAML_PLAIN_SCALAR_STYLE) |
| 1226 | { |
| 1227 | emitter->tag_data.handle = (yaml_char_t *)"!"; |
| 1228 | emitter->tag_data.handle_length = 1; |
| 1229 | } |
| 1230 | |
| 1231 | emitter->scalar_data.style = style; |
| 1232 | |
| 1233 | return 1; |
| 1234 | } |
| 1235 | |
| 1236 | /* |
| 1237 | * Write an achor. |
| 1238 | */ |
| 1239 | |
| 1240 | static int |
| 1241 | yaml_emitter_process_anchor(yaml_emitter_t *emitter) |
| 1242 | { |
| 1243 | if (!emitter->anchor_data.anchor) |
| 1244 | return 1; |
| 1245 | |
| 1246 | if (!yaml_emitter_write_indicator(emitter, |
| 1247 | (emitter->anchor_data.alias ? "*" : "&"), 1, 0, 0)) |
| 1248 | return 0; |
| 1249 | |
| 1250 | return yaml_emitter_write_anchor(emitter, |
| 1251 | emitter->anchor_data.anchor, emitter->anchor_data.anchor_length); |
| 1252 | } |
| 1253 | |
| 1254 | /* |
| 1255 | * Write a tag. |
| 1256 | */ |
| 1257 | |
| 1258 | static int |
| 1259 | yaml_emitter_process_tag(yaml_emitter_t *emitter) |
| 1260 | { |
| 1261 | if (!emitter->tag_data.handle && !emitter->tag_data.suffix) |
| 1262 | return 1; |
| 1263 | |
| 1264 | if (emitter->tag_data.handle) |
| 1265 | { |
| 1266 | if (!yaml_emitter_write_tag_handle(emitter, emitter->tag_data.handle, |
| 1267 | emitter->tag_data.handle_length)) |
| 1268 | return 0; |
| 1269 | if (emitter->tag_data.suffix) { |
| 1270 | if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, |
| 1271 | emitter->tag_data.suffix_length, 0)) |
| 1272 | return 0; |
| 1273 | } |
| 1274 | } |
| 1275 | else |
| 1276 | { |
| 1277 | if (!yaml_emitter_write_indicator(emitter, "!<", 1, 0, 0)) |
| 1278 | return 0; |
| 1279 | if (!yaml_emitter_write_tag_content(emitter, emitter->tag_data.suffix, |
| 1280 | emitter->tag_data.suffix_length, 0)) |
| 1281 | return 0; |
| 1282 | if (!yaml_emitter_write_indicator(emitter, ">", 0, 0, 0)) |
| 1283 | return 0; |
| 1284 | } |
| 1285 | |
| 1286 | return 1; |
| 1287 | } |
| 1288 | |
| 1289 | /* |
| 1290 | * Write a scalar. |
| 1291 | */ |
| 1292 | |
| 1293 | static int |
| 1294 | yaml_emitter_process_scalar(yaml_emitter_t *emitter) |
| 1295 | { |
| 1296 | switch (emitter->scalar_data.style) |
| 1297 | { |
| 1298 | case YAML_PLAIN_SCALAR_STYLE: |
| 1299 | return yaml_emitter_write_plain_scalar(emitter, |
| 1300 | emitter->scalar_data.value, emitter->scalar_data.length, |
| 1301 | !emitter->simple_key_context); |
| 1302 | |
| 1303 | case YAML_SINGLE_QUOTED_SCALAR_STYLE: |
| 1304 | return yaml_emitter_write_single_quoted_scalar(emitter, |
| 1305 | emitter->scalar_data.value, emitter->scalar_data.length, |
| 1306 | !emitter->simple_key_context); |
| 1307 | |
| 1308 | case YAML_DOUBLE_QUOTED_SCALAR_STYLE: |
| 1309 | return yaml_emitter_write_double_quoted_scalar(emitter, |
| 1310 | emitter->scalar_data.value, emitter->scalar_data.length, |
| 1311 | !emitter->simple_key_context); |
| 1312 | |
| 1313 | case YAML_LITERAL_SCALAR_STYLE: |
| 1314 | return yaml_emitter_write_literal_scalar(emitter, |
| 1315 | emitter->scalar_data.value, emitter->scalar_data.length); |
| 1316 | |
| 1317 | case YAML_FOLDED_SCALAR_STYLE: |
| 1318 | return yaml_emitter_write_folded_scalar(emitter, |
| 1319 | emitter->scalar_data.value, emitter->scalar_data.length); |
| 1320 | |
| 1321 | default: |
| 1322 | assert(1); /* Impossible. */ |
| 1323 | } |
| 1324 | |
| 1325 | return 0; |
| 1326 | } |
| 1327 | |
| 1328 | /* |
| 1329 | * Check if a %YAML directive is valid. |
| 1330 | */ |
| 1331 | |
| 1332 | static int |
| 1333 | yaml_emitter_analyze_version_directive(yaml_emitter_t *emitter, |
| 1334 | yaml_version_directive_t version_directive) |
| 1335 | { |
| 1336 | if (version_directive.major != 1 || version_directive.minor != 1) { |
| 1337 | return yaml_emitter_set_emitter_error(emitter, |
| 1338 | "incompatible %YAML directive"); |
| 1339 | } |
| 1340 | |
| 1341 | return 1; |
| 1342 | } |
| 1343 | |
| 1344 | /* |
| 1345 | * Check if a %TAG directive is valid. |
| 1346 | */ |
| 1347 | |
| 1348 | static int |
| 1349 | yaml_emitter_analyze_tag_directive(yaml_emitter_t *emitter, |
| 1350 | yaml_tag_directive_t tag_directive) |
| 1351 | { |
| 1352 | yaml_string_t handle; |
| 1353 | yaml_string_t prefix; |
| 1354 | size_t handle_length; |
| 1355 | size_t prefix_length; |
| 1356 | |
| 1357 | handle_length = strlen((char *)tag_directive.handle); |
| 1358 | prefix_length = strlen((char *)tag_directive.prefix); |
| 1359 | STRING_ASSIGN(handle, tag_directive.handle, handle_length); |
| 1360 | STRING_ASSIGN(prefix, tag_directive.prefix, prefix_length); |
| 1361 | |
| 1362 | if (handle.start == handle.end) { |
| 1363 | return yaml_emitter_set_emitter_error(emitter, |
| 1364 | "tag handle must not be empty"); |
| 1365 | } |
| 1366 | |
| 1367 | if (handle.start[0] != '!') { |
| 1368 | return yaml_emitter_set_emitter_error(emitter, |
| 1369 | "tag handle must start with '!'"); |
| 1370 | } |
| 1371 | |
| 1372 | if (handle.end[-1] != '!') { |
| 1373 | return yaml_emitter_set_emitter_error(emitter, |
| 1374 | "tag handle must end with '!'"); |
| 1375 | } |
| 1376 | |
| 1377 | handle.pointer ++; |
| 1378 | |
| 1379 | while (handle.pointer < handle.end-1) { |
| 1380 | if (!IS_ALPHA(handle)) { |
| 1381 | return yaml_emitter_set_emitter_error(emitter, |
| 1382 | "tag handle must contain alphanumerical characters only"); |
| 1383 | } |
| 1384 | MOVE(handle); |
| 1385 | } |
| 1386 | |
| 1387 | if (prefix.start == prefix.end) { |
| 1388 | return yaml_emitter_set_emitter_error(emitter, |
| 1389 | "tag prefix must not be empty"); |
| 1390 | } |
| 1391 | |
| 1392 | return 1; |
| 1393 | } |
| 1394 | |
| 1395 | /* |
| 1396 | * Check if an anchor is valid. |
| 1397 | */ |
| 1398 | |
| 1399 | static int |
| 1400 | yaml_emitter_analyze_anchor(yaml_emitter_t *emitter, |
| 1401 | yaml_char_t *anchor, int alias) |
| 1402 | { |
| 1403 | size_t anchor_length; |
| 1404 | yaml_string_t string; |
| 1405 | |
| 1406 | anchor_length = strlen((char *)anchor); |
| 1407 | STRING_ASSIGN(string, anchor, anchor_length); |
| 1408 | |
| 1409 | if (string.start == string.end) { |
| 1410 | return yaml_emitter_set_emitter_error(emitter, alias ? |
| 1411 | "alias value must not be empty" : |
| 1412 | "anchor value must not be empty"); |
| 1413 | } |
| 1414 | |
| 1415 | while (string.pointer != string.end) { |
| 1416 | if (!IS_ALPHA(string)) { |
| 1417 | return yaml_emitter_set_emitter_error(emitter, alias ? |
| 1418 | "alias value must contain alphanumerical characters only" : |
| 1419 | "anchor value must contain alphanumerical characters only"); |
| 1420 | } |
| 1421 | MOVE(string); |
| 1422 | } |
| 1423 | |
| 1424 | emitter->anchor_data.anchor = string.start; |
| 1425 | emitter->anchor_data.anchor_length = string.end - string.start; |
| 1426 | emitter->anchor_data.alias = alias; |
| 1427 | |
| 1428 | return 1; |
| 1429 | } |
| 1430 | |
| 1431 | /* |
| 1432 | * Check if a tag is valid. |
| 1433 | */ |
| 1434 | |
| 1435 | static int |
| 1436 | yaml_emitter_analyze_tag(yaml_emitter_t *emitter, |
| 1437 | yaml_char_t *tag) |
| 1438 | { |
| 1439 | size_t tag_length; |
| 1440 | yaml_string_t string; |
| 1441 | yaml_tag_directive_t *tag_directive; |
| 1442 | |
| 1443 | tag_length = strlen((char *)tag); |
| 1444 | STRING_ASSIGN(string, tag, tag_length); |
| 1445 | |
| 1446 | if (string.start == string.end) { |
| 1447 | return yaml_emitter_set_emitter_error(emitter, |
| 1448 | "tag value must not be empty"); |
| 1449 | } |
| 1450 | |
| 1451 | for (tag_directive = emitter->tag_directives.start; |
| 1452 | tag_directive != emitter->tag_directives.top; tag_directive ++) { |
| 1453 | size_t prefix_length = strlen((char *)tag_directive->prefix); |
| 1454 | if (prefix_length < (size_t)(string.end - string.start) |
| 1455 | && strncmp((char *)tag_directive->prefix, (char *)string.start, |
| 1456 | prefix_length) == 0) |
| 1457 | { |
| 1458 | emitter->tag_data.handle = tag_directive->handle; |
| 1459 | emitter->tag_data.handle_length = |
| 1460 | strlen((char *)tag_directive->handle); |
| 1461 | emitter->tag_data.suffix = string.start + prefix_length; |
| 1462 | emitter->tag_data.suffix_length = |
| 1463 | (string.end - string.start) - prefix_length; |
| 1464 | return 1; |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | emitter->tag_data.suffix = string.start; |
| 1469 | emitter->tag_data.suffix_length = string.end - string.start; |
| 1470 | |
| 1471 | return 1; |
| 1472 | } |
| 1473 | |
| 1474 | /* |
| 1475 | * Check if a scalar is valid. |
| 1476 | */ |
| 1477 | |
| 1478 | static int |
| 1479 | yaml_emitter_analyze_scalar(yaml_emitter_t *emitter, |
| 1480 | yaml_char_t *value, size_t length) |
| 1481 | { |
| 1482 | yaml_string_t string; |
| 1483 | |
| 1484 | int block_indicators = 0; |
| 1485 | int flow_indicators = 0; |
| 1486 | int line_breaks = 0; |
| 1487 | int special_characters = 0; |
| 1488 | |
| 1489 | int leading_space = 0; |
| 1490 | int leading_break = 0; |
| 1491 | int trailing_space = 0; |
| 1492 | int trailing_break = 0; |
| 1493 | int break_space = 0; |
| 1494 | int space_break = 0; |
| 1495 | |
| 1496 | int preceeded_by_whitespace = 0; |
| 1497 | int followed_by_whitespace = 0; |
| 1498 | int previous_space = 0; |
| 1499 | int previous_break = 0; |
| 1500 | |
| 1501 | STRING_ASSIGN(string, value, length); |
| 1502 | |
| 1503 | emitter->scalar_data.value = value; |
| 1504 | emitter->scalar_data.length = length; |
| 1505 | |
| 1506 | if (string.start == string.end) |
| 1507 | { |
| 1508 | emitter->scalar_data.multiline = 0; |
| 1509 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1510 | emitter->scalar_data.block_plain_allowed = 1; |
| 1511 | emitter->scalar_data.single_quoted_allowed = 1; |
| 1512 | emitter->scalar_data.block_allowed = 0; |
| 1513 | |
| 1514 | return 1; |
| 1515 | } |
| 1516 | |
| 1517 | if ((CHECK_AT(string, '-', 0) |
| 1518 | && CHECK_AT(string, '-', 1) |
| 1519 | && CHECK_AT(string, '-', 2)) |
| 1520 | || (CHECK_AT(string, '.', 0) |
| 1521 | && CHECK_AT(string, '.', 1) |
| 1522 | && CHECK_AT(string, '.', 2))) { |
| 1523 | block_indicators = 1; |
| 1524 | flow_indicators = 1; |
| 1525 | } |
| 1526 | |
| 1527 | preceeded_by_whitespace = 1; |
| 1528 | followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); |
| 1529 | |
| 1530 | while (string.pointer != string.end) |
| 1531 | { |
| 1532 | if (string.start == string.pointer) |
| 1533 | { |
| 1534 | if (CHECK(string, '#') || CHECK(string, ',') |
| 1535 | || CHECK(string, '[') || CHECK(string, ']') |
| 1536 | || CHECK(string, '{') || CHECK(string, '}') |
| 1537 | || CHECK(string, '&') || CHECK(string, '*') |
| 1538 | || CHECK(string, '!') || CHECK(string, '|') |
| 1539 | || CHECK(string, '>') || CHECK(string, '\'') |
| 1540 | || CHECK(string, '"') || CHECK(string, '%') |
| 1541 | || CHECK(string, '@') || CHECK(string, '`')) { |
| 1542 | flow_indicators = 1; |
| 1543 | block_indicators = 1; |
| 1544 | } |
| 1545 | |
| 1546 | if (CHECK(string, '?') || CHECK(string, ':')) { |
| 1547 | flow_indicators = 1; |
| 1548 | if (followed_by_whitespace) { |
| 1549 | block_indicators = 1; |
| 1550 | } |
| 1551 | } |
| 1552 | |
| 1553 | if (CHECK(string, '-') && followed_by_whitespace) { |
| 1554 | flow_indicators = 1; |
| 1555 | block_indicators = 1; |
| 1556 | } |
| 1557 | } |
| 1558 | else |
| 1559 | { |
| 1560 | if (CHECK(string, ',') || CHECK(string, '?') |
| 1561 | || CHECK(string, '[') || CHECK(string, ']') |
| 1562 | || CHECK(string, '{') || CHECK(string, '}')) { |
| 1563 | flow_indicators = 1; |
| 1564 | } |
| 1565 | |
| 1566 | if (CHECK(string, ':')) { |
| 1567 | flow_indicators = 1; |
| 1568 | if (followed_by_whitespace) { |
| 1569 | block_indicators = 1; |
| 1570 | } |
| 1571 | } |
| 1572 | |
| 1573 | if (CHECK(string, '#') && preceeded_by_whitespace) { |
| 1574 | flow_indicators = 1; |
| 1575 | block_indicators = 1; |
| 1576 | } |
| 1577 | } |
| 1578 | |
| 1579 | if (!IS_PRINTABLE(string) |
| 1580 | || (!IS_ASCII(string) && !emitter->unicode)) { |
| 1581 | special_characters = 1; |
| 1582 | } |
| 1583 | |
| 1584 | if (IS_BREAK(string)) { |
| 1585 | line_breaks = 1; |
| 1586 | } |
| 1587 | |
| 1588 | if (IS_SPACE(string)) |
| 1589 | { |
| 1590 | if (string.start == string.pointer) { |
| 1591 | leading_space = 1; |
| 1592 | } |
| 1593 | if (string.pointer+WIDTH(string) == string.end) { |
| 1594 | trailing_space = 1; |
| 1595 | } |
| 1596 | if (previous_break) { |
| 1597 | break_space = 1; |
| 1598 | } |
| 1599 | previous_space = 1; |
| 1600 | previous_break = 0; |
| 1601 | } |
| 1602 | else if (IS_BREAK(string)) |
| 1603 | { |
| 1604 | if (string.start == string.pointer) { |
| 1605 | leading_break = 1; |
| 1606 | } |
| 1607 | if (string.pointer+WIDTH(string) == string.end) { |
| 1608 | trailing_break = 1; |
| 1609 | } |
| 1610 | if (previous_space) { |
| 1611 | space_break = 1; |
| 1612 | } |
| 1613 | previous_space = 0; |
| 1614 | previous_break = 1; |
| 1615 | } |
| 1616 | else |
| 1617 | { |
| 1618 | previous_space = 0; |
| 1619 | previous_break = 0; |
| 1620 | } |
| 1621 | |
| 1622 | preceeded_by_whitespace = IS_BLANKZ(string); |
| 1623 | MOVE(string); |
| 1624 | if (string.pointer != string.end) { |
| 1625 | followed_by_whitespace = IS_BLANKZ_AT(string, WIDTH(string)); |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | emitter->scalar_data.multiline = line_breaks; |
| 1630 | |
| 1631 | emitter->scalar_data.flow_plain_allowed = 1; |
| 1632 | emitter->scalar_data.block_plain_allowed = 1; |
| 1633 | emitter->scalar_data.single_quoted_allowed = 1; |
| 1634 | emitter->scalar_data.block_allowed = 1; |
| 1635 | |
| 1636 | if (leading_space || leading_break || trailing_space || trailing_break) { |
| 1637 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1638 | emitter->scalar_data.block_plain_allowed = 0; |
| 1639 | } |
| 1640 | |
| 1641 | if (trailing_space) { |
| 1642 | emitter->scalar_data.block_allowed = 0; |
| 1643 | } |
| 1644 | |
| 1645 | if (break_space) { |
| 1646 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1647 | emitter->scalar_data.block_plain_allowed = 0; |
| 1648 | emitter->scalar_data.single_quoted_allowed = 0; |
| 1649 | } |
| 1650 | |
| 1651 | if (space_break || special_characters) { |
| 1652 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1653 | emitter->scalar_data.block_plain_allowed = 0; |
| 1654 | emitter->scalar_data.single_quoted_allowed = 0; |
| 1655 | emitter->scalar_data.block_allowed = 0; |
| 1656 | } |
| 1657 | |
| 1658 | if (line_breaks) { |
| 1659 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1660 | emitter->scalar_data.block_plain_allowed = 0; |
| 1661 | } |
| 1662 | |
| 1663 | if (flow_indicators) { |
| 1664 | emitter->scalar_data.flow_plain_allowed = 0; |
| 1665 | } |
| 1666 | |
| 1667 | if (block_indicators) { |
| 1668 | emitter->scalar_data.block_plain_allowed = 0; |
| 1669 | } |
| 1670 | |
| 1671 | return 1; |
| 1672 | } |
| 1673 | |
| 1674 | /* |
| 1675 | * Check if the event data is valid. |
| 1676 | */ |
| 1677 | |
| 1678 | static int |
| 1679 | yaml_emitter_analyze_event(yaml_emitter_t *emitter, |
| 1680 | yaml_event_t *event) |
| 1681 | { |
| 1682 | emitter->anchor_data.anchor = NULL; |
| 1683 | emitter->anchor_data.anchor_length = 0; |
| 1684 | emitter->tag_data.handle = NULL; |
| 1685 | emitter->tag_data.handle_length = 0; |
| 1686 | emitter->tag_data.suffix = NULL; |
| 1687 | emitter->tag_data.suffix_length = 0; |
| 1688 | emitter->scalar_data.value = NULL; |
| 1689 | emitter->scalar_data.length = 0; |
| 1690 | |
| 1691 | switch (event->type) |
| 1692 | { |
| 1693 | case YAML_ALIAS_EVENT: |
| 1694 | if (!yaml_emitter_analyze_anchor(emitter, |
| 1695 | event->data.alias.anchor, 1)) |
| 1696 | return 0; |
| 1697 | return 1; |
| 1698 | |
| 1699 | case YAML_SCALAR_EVENT: |
| 1700 | if (event->data.scalar.anchor) { |
| 1701 | if (!yaml_emitter_analyze_anchor(emitter, |
| 1702 | event->data.scalar.anchor, 0)) |
| 1703 | return 0; |
| 1704 | } |
| 1705 | if (event->data.scalar.tag && (emitter->canonical || |
| 1706 | (!event->data.scalar.plain_implicit |
| 1707 | && !event->data.scalar.quoted_implicit))) { |
| 1708 | if (!yaml_emitter_analyze_tag(emitter, event->data.scalar.tag)) |
| 1709 | return 0; |
| 1710 | } |
| 1711 | if (!yaml_emitter_analyze_scalar(emitter, |
| 1712 | event->data.scalar.value, event->data.scalar.length)) |
| 1713 | return 0; |
| 1714 | return 1; |
| 1715 | |
| 1716 | case YAML_SEQUENCE_START_EVENT: |
| 1717 | if (event->data.sequence_start.anchor) { |
| 1718 | if (!yaml_emitter_analyze_anchor(emitter, |
| 1719 | event->data.sequence_start.anchor, 0)) |
| 1720 | return 0; |
| 1721 | } |
| 1722 | if (event->data.sequence_start.tag && (emitter->canonical || |
| 1723 | !event->data.sequence_start.implicit)) { |
| 1724 | if (!yaml_emitter_analyze_tag(emitter, |
| 1725 | event->data.sequence_start.tag)) |
| 1726 | return 0; |
| 1727 | } |
| 1728 | return 1; |
| 1729 | |
| 1730 | case YAML_MAPPING_START_EVENT: |
| 1731 | if (event->data.mapping_start.anchor) { |
| 1732 | if (!yaml_emitter_analyze_anchor(emitter, |
| 1733 | event->data.mapping_start.anchor, 0)) |
| 1734 | return 0; |
| 1735 | } |
| 1736 | if (event->data.mapping_start.tag && (emitter->canonical || |
| 1737 | !event->data.mapping_start.implicit)) { |
| 1738 | if (!yaml_emitter_analyze_tag(emitter, |
| 1739 | event->data.mapping_start.tag)) |
| 1740 | return 0; |
| 1741 | } |
| 1742 | return 1; |
| 1743 | |
| 1744 | default: |
| 1745 | return 1; |
| 1746 | } |
| 1747 | } |
| 1748 | |
| 1749 | /* |
| 1750 | * Write the BOM character. |
| 1751 | */ |
| 1752 | |
| 1753 | static int |
| 1754 | yaml_emitter_write_bom(yaml_emitter_t *emitter) |
| 1755 | { |
| 1756 | if (!FLUSH(emitter)) return 0; |
| 1757 | |
| 1758 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xEF'; |
| 1759 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xBB'; |
| 1760 | *(emitter->buffer.pointer++) = (yaml_char_t) '\xBF'; |
| 1761 | |
| 1762 | return 1; |
| 1763 | } |
| 1764 | |
| 1765 | static int |
| 1766 | yaml_emitter_write_indent(yaml_emitter_t *emitter) |
| 1767 | { |
| 1768 | int indent = (emitter->indent >= 0) ? emitter->indent : 0; |
| 1769 | |
| 1770 | if (!emitter->indention || emitter->column > indent |
| 1771 | || (emitter->column == indent && !emitter->whitespace)) { |
| 1772 | if (!PUT_BREAK(emitter)) return 0; |
| 1773 | } |
| 1774 | |
| 1775 | while (emitter->column < indent) { |
| 1776 | if (!PUT(emitter, ' ')) return 0; |
| 1777 | } |
| 1778 | |
| 1779 | emitter->whitespace = 1; |
| 1780 | emitter->indention = 1; |
| 1781 | |
| 1782 | return 1; |
| 1783 | } |
| 1784 | |
| 1785 | static int |
| 1786 | yaml_emitter_write_indicator(yaml_emitter_t *emitter, |
| 1787 | char *indicator, int need_whitespace, |
| 1788 | int is_whitespace, int is_indention) |
| 1789 | { |
| 1790 | size_t indicator_length; |
| 1791 | yaml_string_t string; |
| 1792 | |
| 1793 | indicator_length = strlen(indicator); |
| 1794 | STRING_ASSIGN(string, (yaml_char_t *)indicator, indicator_length); |
| 1795 | |
| 1796 | if (need_whitespace && !emitter->whitespace) { |
| 1797 | if (!PUT(emitter, ' ')) return 0; |
| 1798 | } |
| 1799 | |
| 1800 | while (string.pointer != string.end) { |
| 1801 | if (!WRITE(emitter, string)) return 0; |
| 1802 | } |
| 1803 | |
| 1804 | emitter->whitespace = is_whitespace; |
| 1805 | emitter->indention = (emitter->indention && is_indention); |
| 1806 | emitter->open_ended = 0; |
| 1807 | |
| 1808 | return 1; |
| 1809 | } |
| 1810 | |
| 1811 | static int |
| 1812 | yaml_emitter_write_anchor(yaml_emitter_t *emitter, |
| 1813 | yaml_char_t *value, size_t length) |
| 1814 | { |
| 1815 | yaml_string_t string; |
| 1816 | STRING_ASSIGN(string, value, length); |
| 1817 | |
| 1818 | while (string.pointer != string.end) { |
| 1819 | if (!WRITE(emitter, string)) return 0; |
| 1820 | } |
| 1821 | |
| 1822 | emitter->whitespace = 0; |
| 1823 | emitter->indention = 0; |
| 1824 | |
| 1825 | return 1; |
| 1826 | } |
| 1827 | |
| 1828 | static int |
| 1829 | yaml_emitter_write_tag_handle(yaml_emitter_t *emitter, |
| 1830 | yaml_char_t *value, size_t length) |
| 1831 | { |
| 1832 | yaml_string_t string; |
| 1833 | STRING_ASSIGN(string, value, length); |
| 1834 | |
| 1835 | if (!emitter->whitespace) { |
| 1836 | if (!PUT(emitter, ' ')) return 0; |
| 1837 | } |
| 1838 | |
| 1839 | while (string.pointer != string.end) { |
| 1840 | if (!WRITE(emitter, string)) return 0; |
| 1841 | } |
| 1842 | |
| 1843 | emitter->whitespace = 0; |
| 1844 | emitter->indention = 0; |
| 1845 | |
| 1846 | return 1; |
| 1847 | } |
| 1848 | |
| 1849 | static int |
| 1850 | yaml_emitter_write_tag_content(yaml_emitter_t *emitter, |
| 1851 | yaml_char_t *value, size_t length, |
| 1852 | int need_whitespace) |
| 1853 | { |
| 1854 | yaml_string_t string; |
| 1855 | STRING_ASSIGN(string, value, length); |
| 1856 | |
| 1857 | if (need_whitespace && !emitter->whitespace) { |
| 1858 | if (!PUT(emitter, ' ')) return 0; |
| 1859 | } |
| 1860 | |
| 1861 | while (string.pointer != string.end) { |
| 1862 | if (IS_ALPHA(string) |
| 1863 | || CHECK(string, ';') || CHECK(string, '/') |
| 1864 | || CHECK(string, '?') || CHECK(string, ':') |
| 1865 | || CHECK(string, '@') || CHECK(string, '&') |
| 1866 | || CHECK(string, '=') || CHECK(string, '+') |
| 1867 | || CHECK(string, '$') || CHECK(string, ',') |
| 1868 | || CHECK(string, '_') || CHECK(string, '.') |
| 1869 | || CHECK(string, '~') || CHECK(string, '*') |
| 1870 | || CHECK(string, '\'') || CHECK(string, '(') |
| 1871 | || CHECK(string, ')') || CHECK(string, '[') |
| 1872 | || CHECK(string, ']')) { |
| 1873 | if (!WRITE(emitter, string)) return 0; |
| 1874 | } |
| 1875 | else { |
| 1876 | int width = WIDTH(string); |
| 1877 | unsigned int value; |
| 1878 | while (width --) { |
| 1879 | value = *(string.pointer++); |
| 1880 | if (!PUT(emitter, '%')) return 0; |
| 1881 | if (!PUT(emitter, (value >> 4) |
| 1882 | + ((value >> 4) < 10 ? '0' : 'A' - 10))) |
| 1883 | return 0; |
| 1884 | if (!PUT(emitter, (value & 0x0F) |
| 1885 | + ((value & 0x0F) < 10 ? '0' : 'A' - 10))) |
| 1886 | return 0; |
| 1887 | } |
| 1888 | } |
| 1889 | } |
| 1890 | |
| 1891 | emitter->whitespace = 0; |
| 1892 | emitter->indention = 0; |
| 1893 | |
| 1894 | return 1; |
| 1895 | } |
| 1896 | |
| 1897 | static int |
| 1898 | yaml_emitter_write_plain_scalar(yaml_emitter_t *emitter, |
| 1899 | yaml_char_t *value, size_t length, int allow_breaks) |
| 1900 | { |
| 1901 | yaml_string_t string; |
| 1902 | int spaces = 0; |
| 1903 | int breaks = 0; |
| 1904 | |
| 1905 | STRING_ASSIGN(string, value, length); |
| 1906 | |
| 1907 | if (!emitter->whitespace) { |
| 1908 | if (!PUT(emitter, ' ')) return 0; |
| 1909 | } |
| 1910 | |
| 1911 | while (string.pointer != string.end) |
| 1912 | { |
| 1913 | if (IS_SPACE(string)) |
| 1914 | { |
| 1915 | if (allow_breaks && !spaces |
| 1916 | && emitter->column > emitter->best_width |
| 1917 | && !IS_SPACE_AT(string, 1)) { |
| 1918 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 1919 | MOVE(string); |
| 1920 | } |
| 1921 | else { |
| 1922 | if (!WRITE(emitter, string)) return 0; |
| 1923 | } |
| 1924 | spaces = 1; |
| 1925 | } |
| 1926 | else if (IS_BREAK(string)) |
| 1927 | { |
| 1928 | if (!breaks && CHECK(string, '\n')) { |
| 1929 | if (!PUT_BREAK(emitter)) return 0; |
| 1930 | } |
| 1931 | if (!WRITE_BREAK(emitter, string)) return 0; |
| 1932 | emitter->indention = 1; |
| 1933 | breaks = 1; |
| 1934 | } |
| 1935 | else |
| 1936 | { |
| 1937 | if (breaks) { |
| 1938 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 1939 | } |
| 1940 | if (!WRITE(emitter, string)) return 0; |
| 1941 | emitter->indention = 0; |
| 1942 | spaces = 0; |
| 1943 | breaks = 0; |
| 1944 | } |
| 1945 | } |
| 1946 | |
| 1947 | emitter->whitespace = 0; |
| 1948 | emitter->indention = 0; |
| 1949 | if (emitter->root_context) |
| 1950 | { |
| 1951 | emitter->open_ended = 1; |
| 1952 | } |
| 1953 | |
| 1954 | return 1; |
| 1955 | } |
| 1956 | |
| 1957 | static int |
| 1958 | yaml_emitter_write_single_quoted_scalar(yaml_emitter_t *emitter, |
| 1959 | yaml_char_t *value, size_t length, int allow_breaks) |
| 1960 | { |
| 1961 | yaml_string_t string; |
| 1962 | int spaces = 0; |
| 1963 | int breaks = 0; |
| 1964 | |
| 1965 | STRING_ASSIGN(string, value, length); |
| 1966 | |
| 1967 | if (!yaml_emitter_write_indicator(emitter, "'", 1, 0, 0)) |
| 1968 | return 0; |
| 1969 | |
| 1970 | while (string.pointer != string.end) |
| 1971 | { |
| 1972 | if (IS_SPACE(string)) |
| 1973 | { |
| 1974 | if (allow_breaks && !spaces |
| 1975 | && emitter->column > emitter->best_width |
| 1976 | && string.pointer != string.start |
| 1977 | && string.pointer != string.end - 1 |
| 1978 | && !IS_SPACE_AT(string, 1)) { |
| 1979 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 1980 | MOVE(string); |
| 1981 | } |
| 1982 | else { |
| 1983 | if (!WRITE(emitter, string)) return 0; |
| 1984 | } |
| 1985 | spaces = 1; |
| 1986 | } |
| 1987 | else if (IS_BREAK(string)) |
| 1988 | { |
| 1989 | if (!breaks && CHECK(string, '\n')) { |
| 1990 | if (!PUT_BREAK(emitter)) return 0; |
| 1991 | } |
| 1992 | if (!WRITE_BREAK(emitter, string)) return 0; |
| 1993 | emitter->indention = 1; |
| 1994 | breaks = 1; |
| 1995 | } |
| 1996 | else |
| 1997 | { |
| 1998 | if (breaks) { |
| 1999 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 2000 | } |
| 2001 | if (CHECK(string, '\'')) { |
| 2002 | if (!PUT(emitter, '\'')) return 0; |
| 2003 | } |
| 2004 | if (!WRITE(emitter, string)) return 0; |
| 2005 | emitter->indention = 0; |
| 2006 | spaces = 0; |
| 2007 | breaks = 0; |
| 2008 | } |
| 2009 | } |
| 2010 | |
| 2011 | if (!yaml_emitter_write_indicator(emitter, "'", 0, 0, 0)) |
| 2012 | return 0; |
| 2013 | |
| 2014 | emitter->whitespace = 0; |
| 2015 | emitter->indention = 0; |
| 2016 | |
| 2017 | return 1; |
| 2018 | } |
| 2019 | |
| 2020 | static int |
| 2021 | yaml_emitter_write_double_quoted_scalar(yaml_emitter_t *emitter, |
| 2022 | yaml_char_t *value, size_t length, int allow_breaks) |
| 2023 | { |
| 2024 | yaml_string_t string; |
| 2025 | int spaces = 0; |
| 2026 | |
| 2027 | STRING_ASSIGN(string, value, length); |
| 2028 | |
| 2029 | if (!yaml_emitter_write_indicator(emitter, "\"", 1, 0, 0)) |
| 2030 | return 0; |
| 2031 | |
| 2032 | while (string.pointer != string.end) |
| 2033 | { |
| 2034 | if (!IS_PRINTABLE(string) || (!emitter->unicode && !IS_ASCII(string)) |
| 2035 | || IS_BOM(string) || IS_BREAK(string) |
| 2036 | || CHECK(string, '"') || CHECK(string, '\\')) |
| 2037 | { |
| 2038 | unsigned char octet; |
| 2039 | unsigned int width; |
| 2040 | unsigned int value; |
| 2041 | int k; |
| 2042 | |
| 2043 | octet = string.pointer[0]; |
| 2044 | width = (octet & 0x80) == 0x00 ? 1 : |
| 2045 | (octet & 0xE0) == 0xC0 ? 2 : |
| 2046 | (octet & 0xF0) == 0xE0 ? 3 : |
| 2047 | (octet & 0xF8) == 0xF0 ? 4 : 0; |
| 2048 | value = (octet & 0x80) == 0x00 ? octet & 0x7F : |
| 2049 | (octet & 0xE0) == 0xC0 ? octet & 0x1F : |
| 2050 | (octet & 0xF0) == 0xE0 ? octet & 0x0F : |
| 2051 | (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; |
| 2052 | for (k = 1; k < (int)width; k ++) { |
| 2053 | octet = string.pointer[k]; |
| 2054 | value = (value << 6) + (octet & 0x3F); |
| 2055 | } |
| 2056 | string.pointer += width; |
| 2057 | |
| 2058 | if (!PUT(emitter, '\\')) return 0; |
| 2059 | |
| 2060 | switch (value) |
| 2061 | { |
| 2062 | case 0x00: |
| 2063 | if (!PUT(emitter, '0')) return 0; |
| 2064 | break; |
| 2065 | |
| 2066 | case 0x07: |
| 2067 | if (!PUT(emitter, 'a')) return 0; |
| 2068 | break; |
| 2069 | |
| 2070 | case 0x08: |
| 2071 | if (!PUT(emitter, 'b')) return 0; |
| 2072 | break; |
| 2073 | |
| 2074 | case 0x09: |
| 2075 | if (!PUT(emitter, 't')) return 0; |
| 2076 | break; |
| 2077 | |
| 2078 | case 0x0A: |
| 2079 | if (!PUT(emitter, 'n')) return 0; |
| 2080 | break; |
| 2081 | |
| 2082 | case 0x0B: |
| 2083 | if (!PUT(emitter, 'v')) return 0; |
| 2084 | break; |
| 2085 | |
| 2086 | case 0x0C: |
| 2087 | if (!PUT(emitter, 'f')) return 0; |
| 2088 | break; |
| 2089 | |
| 2090 | case 0x0D: |
| 2091 | if (!PUT(emitter, 'r')) return 0; |
| 2092 | break; |
| 2093 | |
| 2094 | case 0x1B: |
| 2095 | if (!PUT(emitter, 'e')) return 0; |
| 2096 | break; |
| 2097 | |
| 2098 | case 0x22: |
| 2099 | if (!PUT(emitter, '\"')) return 0; |
| 2100 | break; |
| 2101 | |
| 2102 | case 0x5C: |
| 2103 | if (!PUT(emitter, '\\')) return 0; |
| 2104 | break; |
| 2105 | |
| 2106 | case 0x85: |
| 2107 | if (!PUT(emitter, 'N')) return 0; |
| 2108 | break; |
| 2109 | |
| 2110 | case 0xA0: |
| 2111 | if (!PUT(emitter, '_')) return 0; |
| 2112 | break; |
| 2113 | |
| 2114 | case 0x2028: |
| 2115 | if (!PUT(emitter, 'L')) return 0; |
| 2116 | break; |
| 2117 | |
| 2118 | case 0x2029: |
| 2119 | if (!PUT(emitter, 'P')) return 0; |
| 2120 | break; |
| 2121 | |
| 2122 | default: |
| 2123 | if (value <= 0xFF) { |
| 2124 | if (!PUT(emitter, 'x')) return 0; |
| 2125 | width = 2; |
| 2126 | } |
| 2127 | else if (value <= 0xFFFF) { |
| 2128 | if (!PUT(emitter, 'u')) return 0; |
| 2129 | width = 4; |
| 2130 | } |
| 2131 | else { |
| 2132 | if (!PUT(emitter, 'U')) return 0; |
| 2133 | width = 8; |
| 2134 | } |
| 2135 | for (k = (width-1)*4; k >= 0; k -= 4) { |
| 2136 | int digit = (value >> k) & 0x0F; |
| 2137 | if (!PUT(emitter, digit + (digit < 10 ? '0' : 'A'-10))) |
| 2138 | return 0; |
| 2139 | } |
| 2140 | } |
| 2141 | spaces = 0; |
| 2142 | } |
| 2143 | else if (IS_SPACE(string)) |
| 2144 | { |
| 2145 | if (allow_breaks && !spaces |
| 2146 | && emitter->column > emitter->best_width |
| 2147 | && string.pointer != string.start |
| 2148 | && string.pointer != string.end - 1) { |
| 2149 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 2150 | if (IS_SPACE_AT(string, 1)) { |
| 2151 | if (!PUT(emitter, '\\')) return 0; |
| 2152 | } |
| 2153 | MOVE(string); |
| 2154 | } |
| 2155 | else { |
| 2156 | if (!WRITE(emitter, string)) return 0; |
| 2157 | } |
| 2158 | spaces = 1; |
| 2159 | } |
| 2160 | else |
| 2161 | { |
| 2162 | if (!WRITE(emitter, string)) return 0; |
| 2163 | spaces = 0; |
| 2164 | } |
| 2165 | } |
| 2166 | |
| 2167 | if (!yaml_emitter_write_indicator(emitter, "\"", 0, 0, 0)) |
| 2168 | return 0; |
| 2169 | |
| 2170 | emitter->whitespace = 0; |
| 2171 | emitter->indention = 0; |
| 2172 | |
| 2173 | return 1; |
| 2174 | } |
| 2175 | |
| 2176 | static int |
| 2177 | yaml_emitter_write_block_scalar_hints(yaml_emitter_t *emitter, |
| 2178 | yaml_string_t string) |
| 2179 | { |
| 2180 | char indent_hint[2]; |
| 2181 | char *chomp_hint = NULL; |
| 2182 | |
| 2183 | if (IS_SPACE(string) || IS_BREAK(string)) |
| 2184 | { |
| 2185 | indent_hint[0] = '0' + (char)emitter->best_indent; |
| 2186 | indent_hint[1] = '\0'; |
| 2187 | if (!yaml_emitter_write_indicator(emitter, indent_hint, 0, 0, 0)) |
| 2188 | return 0; |
| 2189 | } |
| 2190 | |
| 2191 | emitter->open_ended = 0; |
| 2192 | |
| 2193 | string.pointer = string.end; |
| 2194 | if (string.start == string.pointer) |
| 2195 | { |
| 2196 | chomp_hint = "-"; |
| 2197 | } |
| 2198 | else |
| 2199 | { |
| 2200 | do { |
| 2201 | string.pointer --; |
| 2202 | } while ((*string.pointer & 0xC0) == 0x80); |
| 2203 | if (!IS_BREAK(string)) |
| 2204 | { |
| 2205 | chomp_hint = "-"; |
| 2206 | } |
| 2207 | else if (string.start == string.pointer) |
| 2208 | { |
| 2209 | chomp_hint = "+"; |
| 2210 | emitter->open_ended = 1; |
| 2211 | } |
| 2212 | else |
| 2213 | { |
| 2214 | do { |
| 2215 | string.pointer --; |
| 2216 | } while ((*string.pointer & 0xC0) == 0x80); |
| 2217 | if (IS_BREAK(string)) |
| 2218 | { |
| 2219 | chomp_hint = "+"; |
| 2220 | emitter->open_ended = 1; |
| 2221 | } |
| 2222 | } |
| 2223 | } |
| 2224 | |
| 2225 | if (chomp_hint) |
| 2226 | { |
| 2227 | if (!yaml_emitter_write_indicator(emitter, chomp_hint, 0, 0, 0)) |
| 2228 | return 0; |
| 2229 | } |
| 2230 | |
| 2231 | return 1; |
| 2232 | } |
| 2233 | |
| 2234 | static int |
| 2235 | yaml_emitter_write_literal_scalar(yaml_emitter_t *emitter, |
| 2236 | yaml_char_t *value, size_t length) |
| 2237 | { |
| 2238 | yaml_string_t string; |
| 2239 | int breaks = 1; |
| 2240 | |
| 2241 | STRING_ASSIGN(string, value, length); |
| 2242 | |
| 2243 | if (!yaml_emitter_write_indicator(emitter, "|", 1, 0, 0)) |
| 2244 | return 0; |
| 2245 | if (!yaml_emitter_write_block_scalar_hints(emitter, string)) |
| 2246 | return 0; |
| 2247 | if (!PUT_BREAK(emitter)) return 0; |
| 2248 | emitter->indention = 1; |
| 2249 | emitter->whitespace = 1; |
| 2250 | |
| 2251 | while (string.pointer != string.end) |
| 2252 | { |
| 2253 | if (IS_BREAK(string)) |
| 2254 | { |
| 2255 | if (!WRITE_BREAK(emitter, string)) return 0; |
| 2256 | emitter->indention = 1; |
| 2257 | breaks = 1; |
| 2258 | } |
| 2259 | else |
| 2260 | { |
| 2261 | if (breaks) { |
| 2262 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 2263 | } |
| 2264 | if (!WRITE(emitter, string)) return 0; |
| 2265 | emitter->indention = 0; |
| 2266 | breaks = 0; |
| 2267 | } |
| 2268 | } |
| 2269 | |
| 2270 | return 1; |
| 2271 | } |
| 2272 | |
| 2273 | static int |
| 2274 | yaml_emitter_write_folded_scalar(yaml_emitter_t *emitter, |
| 2275 | yaml_char_t *value, size_t length) |
| 2276 | { |
| 2277 | yaml_string_t string; |
| 2278 | int breaks = 1; |
| 2279 | int leading_spaces = 1; |
| 2280 | |
| 2281 | STRING_ASSIGN(string, value, length); |
| 2282 | |
| 2283 | if (!yaml_emitter_write_indicator(emitter, ">", 1, 0, 0)) |
| 2284 | return 0; |
| 2285 | if (!yaml_emitter_write_block_scalar_hints(emitter, string)) |
| 2286 | return 0; |
| 2287 | if (!PUT_BREAK(emitter)) return 0; |
| 2288 | emitter->indention = 1; |
| 2289 | emitter->whitespace = 1; |
| 2290 | |
| 2291 | while (string.pointer != string.end) |
| 2292 | { |
| 2293 | if (IS_BREAK(string)) |
| 2294 | { |
| 2295 | if (!breaks && !leading_spaces && CHECK(string, '\n')) { |
| 2296 | int k = 0; |
| 2297 | while (IS_BREAK_AT(string, k)) { |
| 2298 | k += WIDTH_AT(string, k); |
| 2299 | } |
| 2300 | if (!IS_BLANKZ_AT(string, k)) { |
| 2301 | if (!PUT_BREAK(emitter)) return 0; |
| 2302 | } |
| 2303 | } |
| 2304 | if (!WRITE_BREAK(emitter, string)) return 0; |
| 2305 | emitter->indention = 1; |
| 2306 | breaks = 1; |
| 2307 | } |
| 2308 | else |
| 2309 | { |
| 2310 | if (breaks) { |
| 2311 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 2312 | leading_spaces = IS_BLANK(string); |
| 2313 | } |
| 2314 | if (!breaks && IS_SPACE(string) && !IS_SPACE_AT(string, 1) |
| 2315 | && emitter->column > emitter->best_width) { |
| 2316 | if (!yaml_emitter_write_indent(emitter)) return 0; |
| 2317 | MOVE(string); |
| 2318 | } |
| 2319 | else { |
| 2320 | if (!WRITE(emitter, string)) return 0; |
| 2321 | } |
| 2322 | emitter->indention = 0; |
| 2323 | breaks = 0; |
| 2324 | } |
| 2325 | } |
| 2326 | |
| 2327 | return 1; |
| 2328 | } |
| 2329 | |