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package org.yaml.snakeyaml.parser; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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import org.yaml.snakeyaml.DumperOptions.Version; |
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import org.yaml.snakeyaml.error.Mark; |
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import org.yaml.snakeyaml.error.YAMLException; |
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import org.yaml.snakeyaml.events.AliasEvent; |
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import org.yaml.snakeyaml.events.DocumentEndEvent; |
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import org.yaml.snakeyaml.events.DocumentStartEvent; |
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import org.yaml.snakeyaml.events.Event; |
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import org.yaml.snakeyaml.events.ImplicitTuple; |
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import org.yaml.snakeyaml.events.MappingEndEvent; |
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import org.yaml.snakeyaml.events.MappingStartEvent; |
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import org.yaml.snakeyaml.events.ScalarEvent; |
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import org.yaml.snakeyaml.events.SequenceEndEvent; |
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import org.yaml.snakeyaml.events.SequenceStartEvent; |
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import org.yaml.snakeyaml.events.StreamEndEvent; |
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import org.yaml.snakeyaml.events.StreamStartEvent; |
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import org.yaml.snakeyaml.nodes.Tag; |
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import org.yaml.snakeyaml.reader.StreamReader; |
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import org.yaml.snakeyaml.scanner.Scanner; |
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import org.yaml.snakeyaml.scanner.ScannerImpl; |
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import org.yaml.snakeyaml.tokens.AliasToken; |
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import org.yaml.snakeyaml.tokens.AnchorToken; |
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import org.yaml.snakeyaml.tokens.BlockEntryToken; |
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import org.yaml.snakeyaml.tokens.DirectiveToken; |
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import org.yaml.snakeyaml.tokens.ScalarToken; |
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import org.yaml.snakeyaml.tokens.StreamEndToken; |
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import org.yaml.snakeyaml.tokens.StreamStartToken; |
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import org.yaml.snakeyaml.tokens.TagToken; |
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import org.yaml.snakeyaml.tokens.TagTuple; |
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import org.yaml.snakeyaml.tokens.Token; |
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import org.yaml.snakeyaml.util.ArrayStack; |
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116 | 4646553 | public final class ParserImpl implements Parser { |
117 | 1 | private static final Map<String, String> DEFAULT_TAGS = new HashMap<String, String>(); |
118 | |
static { |
119 | 1 | DEFAULT_TAGS.put("!", "!"); |
120 | 1 | DEFAULT_TAGS.put("!!", Tag.PREFIX); |
121 | 1 | } |
122 | |
|
123 | |
private final Scanner scanner; |
124 | |
private Event currentEvent; |
125 | |
private final ArrayStack<Production> states; |
126 | |
private final ArrayStack<Mark> marks; |
127 | |
private Production state; |
128 | |
private VersionTagsTuple directives; |
129 | |
|
130 | 132563 | public ParserImpl(StreamReader reader) { |
131 | 132563 | this.scanner = new ScannerImpl(reader); |
132 | 132563 | currentEvent = null; |
133 | 132563 | directives = new VersionTagsTuple(null, new HashMap<String, String>(DEFAULT_TAGS)); |
134 | 132563 | states = new ArrayStack<Production>(100); |
135 | 132563 | marks = new ArrayStack<Mark>(10); |
136 | 132563 | state = new ParseStreamStart(); |
137 | 132563 | } |
138 | |
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139 | |
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141 | |
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142 | |
public boolean checkEvent(Event.ID choices) { |
143 | 1609953 | peekEvent(); |
144 | 1609840 | if (currentEvent != null) { |
145 | 1609840 | if (currentEvent.is(choices)) { |
146 | 656935 | return true; |
147 | |
} |
148 | |
} |
149 | 952905 | return false; |
150 | |
} |
151 | |
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155 | |
public Event peekEvent() { |
156 | 3253700 | if (currentEvent == null) { |
157 | 1100631 | if (state != null) { |
158 | 1097952 | currentEvent = state.produce(); |
159 | |
} |
160 | |
} |
161 | 3253587 | return currentEvent; |
162 | |
} |
163 | |
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167 | |
public Event getEvent() { |
168 | 1097632 | peekEvent(); |
169 | 1097632 | Event value = currentEvent; |
170 | 1097632 | currentEvent = null; |
171 | 1097632 | return value; |
172 | |
} |
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181 | 265126 | private class ParseStreamStart implements Production { |
182 | |
public Event produce() { |
183 | |
|
184 | 132563 | StreamStartToken token = (StreamStartToken) scanner.getToken(); |
185 | 132563 | Event event = new StreamStartEvent(token.getStartMark(), token.getEndMark()); |
186 | |
|
187 | 132563 | state = new ParseImplicitDocumentStart(); |
188 | 132563 | return event; |
189 | |
} |
190 | |
} |
191 | |
|
192 | 265126 | private class ParseImplicitDocumentStart implements Production { |
193 | |
public Event produce() { |
194 | |
|
195 | 132563 | if (!scanner.checkToken(Token.ID.Directive, Token.ID.DocumentStart, Token.ID.StreamEnd)) { |
196 | 130676 | directives = new VersionTagsTuple(null, DEFAULT_TAGS); |
197 | 130676 | Token token = scanner.peekToken(); |
198 | 130676 | Mark startMark = token.getStartMark(); |
199 | 130676 | Mark endMark = startMark; |
200 | 130676 | Event event = new DocumentStartEvent(startMark, endMark, false, null, null); |
201 | |
|
202 | 130676 | states.push(new ParseDocumentEnd()); |
203 | 130676 | state = new ParseBlockNode(); |
204 | 130676 | return event; |
205 | |
} else { |
206 | 1847 | Production p = new ParseDocumentStart(); |
207 | 1847 | return p.produce(); |
208 | |
} |
209 | |
} |
210 | |
} |
211 | |
|
212 | 269524 | private class ParseDocumentStart implements Production { |
213 | |
public Event produce() { |
214 | |
|
215 | 134726 | while (scanner.checkToken(Token.ID.DocumentEnd)) { |
216 | 4 | scanner.getToken(); |
217 | |
} |
218 | |
|
219 | |
Event event; |
220 | 134722 | if (!scanner.checkToken(Token.ID.StreamEnd)) { |
221 | 2325 | Token token = scanner.peekToken(); |
222 | 2325 | Mark startMark = token.getStartMark(); |
223 | 2325 | VersionTagsTuple tuple = processDirectives(); |
224 | 2319 | if (!scanner.checkToken(Token.ID.DocumentStart)) { |
225 | 6 | throw new ParserException(null, null, "expected '<document start>', but found " |
226 | |
+ scanner.peekToken().getTokenId(), scanner.peekToken().getStartMark()); |
227 | |
} |
228 | 2313 | token = scanner.getToken(); |
229 | 2313 | Mark endMark = token.getEndMark(); |
230 | 2313 | event = new DocumentStartEvent(startMark, endMark, true, tuple.getVersion(), |
231 | |
tuple.getTags()); |
232 | 2313 | states.push(new ParseDocumentEnd()); |
233 | 2313 | state = new ParseDocumentContent(); |
234 | 2313 | } else { |
235 | |
|
236 | 132397 | StreamEndToken token = (StreamEndToken) scanner.getToken(); |
237 | 132397 | event = new StreamEndEvent(token.getStartMark(), token.getEndMark()); |
238 | 132397 | if (!states.isEmpty()) { |
239 | 0 | throw new YAMLException("Unexpected end of stream. States left: " + states); |
240 | |
} |
241 | 132397 | if (!marks.isEmpty()) { |
242 | 0 | throw new YAMLException("Unexpected end of stream. Marks left: " + marks); |
243 | |
} |
244 | 132397 | state = null; |
245 | |
} |
246 | 134710 | return event; |
247 | |
} |
248 | |
} |
249 | |
|
250 | 265978 | private class ParseDocumentEnd implements Production { |
251 | |
public Event produce() { |
252 | |
|
253 | 132915 | Token token = scanner.peekToken(); |
254 | 132915 | Mark startMark = token.getStartMark(); |
255 | 132915 | Mark endMark = startMark; |
256 | 132915 | boolean explicit = false; |
257 | 132915 | if (scanner.checkToken(Token.ID.DocumentEnd)) { |
258 | 123 | token = scanner.getToken(); |
259 | 123 | endMark = token.getEndMark(); |
260 | 123 | explicit = true; |
261 | |
} |
262 | 132915 | Event event = new DocumentEndEvent(startMark, endMark, explicit); |
263 | |
|
264 | 132915 | state = new ParseDocumentStart(); |
265 | 132915 | return event; |
266 | |
} |
267 | |
} |
268 | |
|
269 | 4626 | private class ParseDocumentContent implements Production { |
270 | |
public Event produce() { |
271 | |
Event event; |
272 | 2308 | if (scanner.checkToken(Token.ID.Directive, Token.ID.DocumentStart, |
273 | |
Token.ID.DocumentEnd, Token.ID.StreamEnd)) { |
274 | 21 | event = processEmptyScalar(scanner.peekToken().getStartMark()); |
275 | 21 | state = states.pop(); |
276 | 21 | return event; |
277 | |
} else { |
278 | 2269 | Production p = new ParseBlockNode(); |
279 | 2269 | return p.produce(); |
280 | |
} |
281 | |
} |
282 | |
} |
283 | |
|
284 | |
@SuppressWarnings("unchecked") |
285 | |
private VersionTagsTuple processDirectives() { |
286 | 2325 | Version yamlVersion = null; |
287 | 2325 | HashMap<String, String> tagHandles = new HashMap<String, String>(); |
288 | 7345 | while (scanner.checkToken(Token.ID.Directive)) { |
289 | |
@SuppressWarnings("rawtypes") |
290 | 5026 | DirectiveToken token = (DirectiveToken) scanner.getToken(); |
291 | 5026 | if (token.getName().equals("YAML")) { |
292 | 1726 | if (yamlVersion != null) { |
293 | 2 | throw new ParserException(null, null, "found duplicate YAML directive", |
294 | |
token.getStartMark()); |
295 | |
} |
296 | 1724 | List<Integer> value = (List<Integer>) token.getValue(); |
297 | 1724 | Integer major = value.get(0); |
298 | 1724 | if (major != 1) { |
299 | 2 | throw new ParserException(null, null, |
300 | |
"found incompatible YAML document (version 1.* is required)", |
301 | |
token.getStartMark()); |
302 | |
} |
303 | 1722 | Integer minor = value.get(1); |
304 | 1722 | switch (minor) { |
305 | |
case 0: |
306 | 0 | yamlVersion = Version.V1_0; |
307 | 0 | break; |
308 | |
|
309 | |
default: |
310 | 1722 | yamlVersion = Version.V1_1; |
311 | |
break; |
312 | |
} |
313 | 1722 | } else if (token.getName().equals("TAG")) { |
314 | 3296 | List<String> value = (List<String>) token.getValue(); |
315 | 3296 | String handle = value.get(0); |
316 | 3296 | String prefix = value.get(1); |
317 | 3296 | if (tagHandles.containsKey(handle)) { |
318 | 2 | throw new ParserException(null, null, "duplicate tag handle " + handle, |
319 | |
token.getStartMark()); |
320 | |
} |
321 | 3294 | tagHandles.put(handle, prefix); |
322 | |
} |
323 | 5020 | } |
324 | 2319 | if (yamlVersion != null || !tagHandles.isEmpty()) { |
325 | |
|
326 | 2043 | for (String key : DEFAULT_TAGS.keySet()) { |
327 | |
|
328 | 4086 | if (!tagHandles.containsKey(key)) { |
329 | 860 | tagHandles.put(key, DEFAULT_TAGS.get(key)); |
330 | |
} |
331 | |
} |
332 | 2043 | directives = new VersionTagsTuple(yamlVersion, tagHandles); |
333 | |
} |
334 | 2319 | return directives; |
335 | |
} |
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357 | 494940 | private class ParseBlockNode implements Production { |
358 | |
public Event produce() { |
359 | 247468 | return parseNode(true, false); |
360 | |
} |
361 | |
} |
362 | |
|
363 | |
private Event parseFlowNode() { |
364 | 11007 | return parseNode(false, false); |
365 | |
} |
366 | |
|
367 | |
private Event parseBlockNodeOrIndentlessSequence() { |
368 | 270968 | return parseNode(true, true); |
369 | |
} |
370 | |
|
371 | |
private Event parseNode(boolean block, boolean indentlessSequence) { |
372 | |
Event event; |
373 | 529443 | Mark startMark = null; |
374 | 529443 | Mark endMark = null; |
375 | 529443 | Mark tagMark = null; |
376 | 529443 | if (scanner.checkToken(Token.ID.Alias)) { |
377 | 1417 | AliasToken token = (AliasToken) scanner.getToken(); |
378 | 1417 | event = new AliasEvent(token.getValue(), token.getStartMark(), token.getEndMark()); |
379 | 1417 | state = states.pop(); |
380 | 1417 | } else { |
381 | 528026 | String anchor = null; |
382 | 528026 | TagTuple tagTokenTag = null; |
383 | 528026 | if (scanner.checkToken(Token.ID.Anchor)) { |
384 | 1352 | AnchorToken token = (AnchorToken) scanner.getToken(); |
385 | 1352 | startMark = token.getStartMark(); |
386 | 1352 | endMark = token.getEndMark(); |
387 | 1352 | anchor = token.getValue(); |
388 | 1352 | if (scanner.checkToken(Token.ID.Tag)) { |
389 | 1242 | TagToken tagToken = (TagToken) scanner.getToken(); |
390 | 1242 | tagMark = tagToken.getStartMark(); |
391 | 1242 | endMark = tagToken.getEndMark(); |
392 | 1242 | tagTokenTag = tagToken.getValue(); |
393 | |
} |
394 | 1352 | } else if (scanner.checkToken(Token.ID.Tag)) { |
395 | 10883 | TagToken tagToken = (TagToken) scanner.getToken(); |
396 | 10883 | startMark = tagToken.getStartMark(); |
397 | 10883 | tagMark = startMark; |
398 | 10883 | endMark = tagToken.getEndMark(); |
399 | 10883 | tagTokenTag = tagToken.getValue(); |
400 | 10883 | if (scanner.checkToken(Token.ID.Anchor)) { |
401 | 15 | AnchorToken token = (AnchorToken) scanner.getToken(); |
402 | 15 | endMark = token.getEndMark(); |
403 | 15 | anchor = token.getValue(); |
404 | |
} |
405 | |
} |
406 | 528026 | String tag = null; |
407 | 528026 | if (tagTokenTag != null) { |
408 | 12125 | String handle = tagTokenTag.getHandle(); |
409 | 12125 | String suffix = tagTokenTag.getSuffix(); |
410 | 12125 | if (handle != null) { |
411 | 9942 | if (!directives.getTags().containsKey(handle)) { |
412 | 2 | throw new ParserException("while parsing a node", startMark, |
413 | |
"found undefined tag handle " + handle, tagMark); |
414 | |
} |
415 | 9940 | tag = directives.getTags().get(handle) + suffix; |
416 | |
} else { |
417 | 2183 | tag = suffix; |
418 | |
} |
419 | |
} |
420 | 528024 | if (startMark == null) { |
421 | 515791 | startMark = scanner.peekToken().getStartMark(); |
422 | 515791 | endMark = startMark; |
423 | |
} |
424 | 528024 | event = null; |
425 | 528024 | boolean implicit = (tag == null || tag.equals("!")); |
426 | 528024 | if (indentlessSequence && scanner.checkToken(Token.ID.BlockEntry)) { |
427 | 10371 | endMark = scanner.peekToken().getEndMark(); |
428 | 10371 | event = new SequenceStartEvent(anchor, tag, implicit, startMark, endMark, |
429 | |
Boolean.FALSE); |
430 | 10371 | state = new ParseIndentlessSequenceEntry(); |
431 | |
} else { |
432 | 517653 | if (scanner.checkToken(Token.ID.Scalar)) { |
433 | 490538 | ScalarToken token = (ScalarToken) scanner.getToken(); |
434 | 490538 | endMark = token.getEndMark(); |
435 | |
ImplicitTuple implicitValues; |
436 | 490538 | if ((token.getPlain() && tag == null) || "!".equals(tag)) { |
437 | 153153 | implicitValues = new ImplicitTuple(true, false); |
438 | 337385 | } else if (tag == null) { |
439 | 331442 | implicitValues = new ImplicitTuple(false, true); |
440 | |
} else { |
441 | 5943 | implicitValues = new ImplicitTuple(false, false); |
442 | |
} |
443 | 490538 | event = new ScalarEvent(anchor, tag, implicitValues, token.getValue(), |
444 | |
startMark, endMark, token.getStyle()); |
445 | 490538 | state = states.pop(); |
446 | 490538 | } else if (scanner.checkToken(Token.ID.FlowSequenceStart)) { |
447 | 1075 | endMark = scanner.peekToken().getEndMark(); |
448 | 1075 | event = new SequenceStartEvent(anchor, tag, implicit, startMark, endMark, |
449 | |
Boolean.TRUE); |
450 | 1075 | state = new ParseFlowSequenceFirstEntry(); |
451 | 26040 | } else if (scanner.checkToken(Token.ID.FlowMappingStart)) { |
452 | 2771 | endMark = scanner.peekToken().getEndMark(); |
453 | 2771 | event = new MappingStartEvent(anchor, tag, implicit, startMark, endMark, |
454 | |
Boolean.TRUE); |
455 | 2771 | state = new ParseFlowMappingFirstKey(); |
456 | 23269 | } else if (block && scanner.checkToken(Token.ID.BlockSequenceStart)) { |
457 | 563 | endMark = scanner.peekToken().getStartMark(); |
458 | 563 | event = new SequenceStartEvent(anchor, tag, implicit, startMark, endMark, |
459 | |
Boolean.FALSE); |
460 | 563 | state = new ParseBlockSequenceFirstEntry(); |
461 | 22706 | } else if (block && scanner.checkToken(Token.ID.BlockMappingStart)) { |
462 | 22537 | endMark = scanner.peekToken().getStartMark(); |
463 | 22537 | event = new MappingStartEvent(anchor, tag, implicit, startMark, endMark, |
464 | |
Boolean.FALSE); |
465 | 22537 | state = new ParseBlockMappingFirstKey(); |
466 | 169 | } else if (anchor != null || tag != null) { |
467 | |
|
468 | |
|
469 | 165 | event = new ScalarEvent(anchor, tag, new ImplicitTuple(implicit, false), "", |
470 | |
startMark, endMark, (char) 0); |
471 | 165 | state = states.pop(); |
472 | |
} else { |
473 | |
String node; |
474 | 4 | if (block) { |
475 | 0 | node = "block"; |
476 | |
} else { |
477 | 4 | node = "flow"; |
478 | |
} |
479 | 4 | Token token = scanner.peekToken(); |
480 | 4 | throw new ParserException("while parsing a " + node + " node", startMark, |
481 | |
"expected the node content, but found " + token.getTokenId(), |
482 | |
token.getStartMark()); |
483 | |
} |
484 | |
} |
485 | |
} |
486 | 529437 | return event; |
487 | |
} |
488 | |
|
489 | |
|
490 | |
|
491 | |
|
492 | 1126 | private class ParseBlockSequenceFirstEntry implements Production { |
493 | |
public Event produce() { |
494 | 563 | Token token = scanner.getToken(); |
495 | 563 | marks.push(token.getStartMark()); |
496 | 563 | return new ParseBlockSequenceEntry().produce(); |
497 | |
} |
498 | |
} |
499 | |
|
500 | 14880 | private class ParseBlockSequenceEntry implements Production { |
501 | |
public Event produce() { |
502 | 14309 | if (scanner.checkToken(Token.ID.BlockEntry)) { |
503 | 13762 | BlockEntryToken token = (BlockEntryToken) scanner.getToken(); |
504 | 13762 | if (!scanner.checkToken(Token.ID.BlockEntry, Token.ID.BlockEnd)) { |
505 | 13743 | states.push(new ParseBlockSequenceEntry()); |
506 | 13743 | return new ParseBlockNode().produce(); |
507 | |
} else { |
508 | 11 | state = new ParseBlockSequenceEntry(); |
509 | 11 | return processEmptyScalar(token.getEndMark()); |
510 | |
} |
511 | |
} |
512 | 547 | if (!scanner.checkToken(Token.ID.BlockEnd)) { |
513 | 4 | Token token = scanner.peekToken(); |
514 | 4 | throw new ParserException("while parsing a block collection", marks.pop(), |
515 | |
"expected <block end>, but found " + token.getTokenId(), |
516 | |
token.getStartMark()); |
517 | |
} |
518 | 543 | Token token = scanner.getToken(); |
519 | 543 | Event event = new SequenceEndEvent(token.getStartMark(), token.getEndMark()); |
520 | 543 | state = states.pop(); |
521 | 543 | marks.pop(); |
522 | 543 | return event; |
523 | |
} |
524 | |
} |
525 | |
|
526 | |
|
527 | |
|
528 | 121524 | private class ParseIndentlessSequenceEntry implements Production { |
529 | |
public Event produce() { |
530 | 111153 | if (scanner.checkToken(Token.ID.BlockEntry)) { |
531 | 100782 | Token token = scanner.getToken(); |
532 | 100782 | if (!scanner.checkToken(Token.ID.BlockEntry, Token.ID.Key, Token.ID.Value, |
533 | |
Token.ID.BlockEnd)) { |
534 | 100782 | states.push(new ParseIndentlessSequenceEntry()); |
535 | 100782 | return new ParseBlockNode().produce(); |
536 | |
} else { |
537 | 0 | state = new ParseIndentlessSequenceEntry(); |
538 | 0 | return processEmptyScalar(token.getEndMark()); |
539 | |
} |
540 | |
} |
541 | 10371 | Token token = scanner.peekToken(); |
542 | 10371 | Event event = new SequenceEndEvent(token.getStartMark(), token.getEndMark()); |
543 | 10371 | state = states.pop(); |
544 | 10371 | return event; |
545 | |
} |
546 | |
} |
547 | |
|
548 | 45074 | private class ParseBlockMappingFirstKey implements Production { |
549 | |
public Event produce() { |
550 | 22537 | Token token = scanner.getToken(); |
551 | 22537 | marks.push(token.getStartMark()); |
552 | 22537 | return new ParseBlockMappingKey().produce(); |
553 | |
} |
554 | |
} |
555 | |
|
556 | 316144 | private class ParseBlockMappingKey implements Production { |
557 | |
public Event produce() { |
558 | 158069 | if (scanner.checkToken(Token.ID.Key)) { |
559 | 135539 | Token token = scanner.getToken(); |
560 | 135539 | if (!scanner.checkToken(Token.ID.Key, Token.ID.Value, Token.ID.BlockEnd)) { |
561 | 135532 | states.push(new ParseBlockMappingValue()); |
562 | 135532 | return parseBlockNodeOrIndentlessSequence(); |
563 | |
} else { |
564 | 7 | state = new ParseBlockMappingValue(); |
565 | 7 | return processEmptyScalar(token.getEndMark()); |
566 | |
} |
567 | |
} |
568 | 22524 | if (!scanner.checkToken(Token.ID.BlockEnd)) { |
569 | 6 | Token token = scanner.peekToken(); |
570 | 6 | throw new ParserException("while parsing a block mapping", marks.pop(), |
571 | |
"expected <block end>, but found " + token.getTokenId(), |
572 | |
token.getStartMark()); |
573 | |
} |
574 | 22518 | Token token = scanner.getToken(); |
575 | 22518 | Event event = new MappingEndEvent(token.getStartMark(), token.getEndMark()); |
576 | 22518 | state = states.pop(); |
577 | 22518 | marks.pop(); |
578 | 22518 | return event; |
579 | |
} |
580 | |
} |
581 | |
|
582 | 271078 | private class ParseBlockMappingValue implements Production { |
583 | |
public Event produce() { |
584 | 135539 | if (scanner.checkToken(Token.ID.Value)) { |
585 | 135523 | Token token = scanner.getToken(); |
586 | 135523 | if (!scanner.checkToken(Token.ID.Key, Token.ID.Value, Token.ID.BlockEnd)) { |
587 | 135436 | states.push(new ParseBlockMappingKey()); |
588 | 135436 | return parseBlockNodeOrIndentlessSequence(); |
589 | |
} else { |
590 | 83 | state = new ParseBlockMappingKey(); |
591 | 83 | return processEmptyScalar(token.getEndMark()); |
592 | |
} |
593 | |
} |
594 | 16 | state = new ParseBlockMappingKey(); |
595 | 16 | Token token = scanner.peekToken(); |
596 | 16 | return processEmptyScalar(token.getStartMark()); |
597 | |
} |
598 | |
} |
599 | |
|
600 | |
|
601 | |
|
602 | |
|
603 | |
|
604 | |
|
605 | |
|
606 | |
|
607 | |
|
608 | |
|
609 | |
|
610 | |
|
611 | |
|
612 | |
|
613 | 2150 | private class ParseFlowSequenceFirstEntry implements Production { |
614 | |
public Event produce() { |
615 | 1075 | Token token = scanner.getToken(); |
616 | 1075 | marks.push(token.getStartMark()); |
617 | 1075 | return new ParseFlowSequenceEntry(true).produce(); |
618 | |
} |
619 | |
} |
620 | |
|
621 | |
private class ParseFlowSequenceEntry implements Production { |
622 | 3721 | private boolean first = false; |
623 | |
|
624 | 3721 | public ParseFlowSequenceEntry(boolean first) { |
625 | 3721 | this.first = first; |
626 | 3721 | } |
627 | |
|
628 | |
public Event produce() { |
629 | 3714 | if (!scanner.checkToken(Token.ID.FlowSequenceEnd)) { |
630 | 2792 | if (!first) { |
631 | 1888 | if (scanner.checkToken(Token.ID.FlowEntry)) { |
632 | 1882 | scanner.getToken(); |
633 | |
} else { |
634 | 6 | Token token = scanner.peekToken(); |
635 | 6 | throw new ParserException("while parsing a flow sequence", marks.pop(), |
636 | |
"expected ',' or ']', but got " + token.getTokenId(), |
637 | |
token.getStartMark()); |
638 | |
} |
639 | |
} |
640 | 2786 | if (scanner.checkToken(Token.ID.Key)) { |
641 | 41 | Token token = scanner.peekToken(); |
642 | 41 | Event event = new MappingStartEvent(null, null, true, token.getStartMark(), |
643 | |
token.getEndMark(), Boolean.TRUE); |
644 | 41 | state = new ParseFlowSequenceEntryMappingKey(); |
645 | 41 | return event; |
646 | 2745 | } else if (!scanner.checkToken(Token.ID.FlowSequenceEnd)) { |
647 | 2605 | states.push(new ParseFlowSequenceEntry(false)); |
648 | 2605 | return parseFlowNode(); |
649 | |
} |
650 | |
} |
651 | 1062 | Token token = scanner.getToken(); |
652 | 1062 | Event event = new SequenceEndEvent(token.getStartMark(), token.getEndMark()); |
653 | 1062 | state = states.pop(); |
654 | 1062 | marks.pop(); |
655 | 1062 | return event; |
656 | |
} |
657 | |
} |
658 | |
|
659 | 82 | private class ParseFlowSequenceEntryMappingKey implements Production { |
660 | |
public Event produce() { |
661 | 41 | Token token = scanner.getToken(); |
662 | 41 | if (!scanner.checkToken(Token.ID.Value, Token.ID.FlowEntry, Token.ID.FlowSequenceEnd)) { |
663 | 41 | states.push(new ParseFlowSequenceEntryMappingValue()); |
664 | 41 | return parseFlowNode(); |
665 | |
} else { |
666 | 0 | state = new ParseFlowSequenceEntryMappingValue(); |
667 | 0 | return processEmptyScalar(token.getEndMark()); |
668 | |
} |
669 | |
} |
670 | |
} |
671 | |
|
672 | 82 | private class ParseFlowSequenceEntryMappingValue implements Production { |
673 | |
public Event produce() { |
674 | 41 | if (scanner.checkToken(Token.ID.Value)) { |
675 | 37 | Token token = scanner.getToken(); |
676 | 37 | if (!scanner.checkToken(Token.ID.FlowEntry, Token.ID.FlowSequenceEnd)) { |
677 | 29 | states.push(new ParseFlowSequenceEntryMappingEnd()); |
678 | 29 | return parseFlowNode(); |
679 | |
} else { |
680 | 8 | state = new ParseFlowSequenceEntryMappingEnd(); |
681 | 8 | return processEmptyScalar(token.getEndMark()); |
682 | |
} |
683 | |
} else { |
684 | 4 | state = new ParseFlowSequenceEntryMappingEnd(); |
685 | 4 | Token token = scanner.peekToken(); |
686 | 4 | return processEmptyScalar(token.getStartMark()); |
687 | |
} |
688 | |
} |
689 | |
} |
690 | |
|
691 | 82 | private class ParseFlowSequenceEntryMappingEnd implements Production { |
692 | |
public Event produce() { |
693 | 41 | state = new ParseFlowSequenceEntry(false); |
694 | 41 | Token token = scanner.peekToken(); |
695 | 41 | return new MappingEndEvent(token.getStartMark(), token.getEndMark()); |
696 | |
} |
697 | |
} |
698 | |
|
699 | |
|
700 | |
|
701 | |
|
702 | |
|
703 | |
|
704 | |
|
705 | |
|
706 | |
|
707 | |
|
708 | 5542 | private class ParseFlowMappingFirstKey implements Production { |
709 | |
public Event produce() { |
710 | 2771 | Token token = scanner.getToken(); |
711 | 2771 | marks.push(token.getStartMark()); |
712 | 2771 | return new ParseFlowMappingKey(true).produce(); |
713 | |
} |
714 | |
} |
715 | |
|
716 | |
private class ParseFlowMappingKey implements Production { |
717 | 6959 | private boolean first = false; |
718 | |
|
719 | 6959 | public ParseFlowMappingKey(boolean first) { |
720 | 6959 | this.first = first; |
721 | 6959 | } |
722 | |
|
723 | |
public Event produce() { |
724 | 6959 | if (!scanner.checkToken(Token.ID.FlowMappingEnd)) { |
725 | 4355 | if (!first) { |
726 | 1632 | if (scanner.checkToken(Token.ID.FlowEntry)) { |
727 | 1629 | scanner.getToken(); |
728 | |
} else { |
729 | 3 | Token token = scanner.peekToken(); |
730 | 3 | throw new ParserException("while parsing a flow mapping", marks.pop(), |
731 | |
"expected ',' or '}', but got " + token.getTokenId(), |
732 | |
token.getStartMark()); |
733 | |
} |
734 | |
} |
735 | 4352 | if (scanner.checkToken(Token.ID.Key)) { |
736 | 4171 | Token token = scanner.getToken(); |
737 | 4171 | if (!scanner.checkToken(Token.ID.Value, Token.ID.FlowEntry, |
738 | |
Token.ID.FlowMappingEnd)) { |
739 | 4163 | states.push(new ParseFlowMappingValue()); |
740 | 4163 | return parseFlowNode(); |
741 | |
} else { |
742 | 8 | state = new ParseFlowMappingValue(); |
743 | 8 | return processEmptyScalar(token.getEndMark()); |
744 | |
} |
745 | 181 | } else if (!scanner.checkToken(Token.ID.FlowMappingEnd)) { |
746 | 18 | states.push(new ParseFlowMappingEmptyValue()); |
747 | 18 | return parseFlowNode(); |
748 | |
} |
749 | |
} |
750 | 2767 | Token token = scanner.getToken(); |
751 | 2767 | Event event = new MappingEndEvent(token.getStartMark(), token.getEndMark()); |
752 | 2767 | state = states.pop(); |
753 | 2767 | marks.pop(); |
754 | 2767 | return event; |
755 | |
} |
756 | |
} |
757 | |
|
758 | 8342 | private class ParseFlowMappingValue implements Production { |
759 | |
public Event produce() { |
760 | 4171 | if (scanner.checkToken(Token.ID.Value)) { |
761 | 4167 | Token token = scanner.getToken(); |
762 | 4167 | if (!scanner.checkToken(Token.ID.FlowEntry, Token.ID.FlowMappingEnd)) { |
763 | 4151 | states.push(new ParseFlowMappingKey(false)); |
764 | 4151 | return parseFlowNode(); |
765 | |
} else { |
766 | 16 | state = new ParseFlowMappingKey(false); |
767 | 16 | return processEmptyScalar(token.getEndMark()); |
768 | |
} |
769 | |
} else { |
770 | 4 | state = new ParseFlowMappingKey(false); |
771 | 4 | Token token = scanner.peekToken(); |
772 | 4 | return processEmptyScalar(token.getStartMark()); |
773 | |
} |
774 | |
} |
775 | |
} |
776 | |
|
777 | 36 | private class ParseFlowMappingEmptyValue implements Production { |
778 | |
public Event produce() { |
779 | 17 | state = new ParseFlowMappingKey(false); |
780 | 17 | return processEmptyScalar(scanner.peekToken().getStartMark()); |
781 | |
} |
782 | |
} |
783 | |
|
784 | |
|
785 | |
|
786 | |
|
787 | |
|
788 | |
|
789 | |
|
790 | |
|
791 | |
|
792 | |
private Event processEmptyScalar(Mark mark) { |
793 | 195 | return new ScalarEvent(null, null, new ImplicitTuple(true, false), "", mark, mark, (char) 0); |
794 | |
} |
795 | |
} |