1 /*
2 * relaxng.c : implementation of the Relax-NG handling and validity checking
3 *
4 * See Copyright for the status of this software.
5 *
6 * Daniel Veillard <veillard@redhat.com>
7 */
8
9 /**
10 * TODO:
11 * - add support for DTD compatibility spec
12 * http://www.oasis-open.org/committees/relax-ng/compatibility-20011203.html
13 * - report better mem allocations pbms at runtime and abort immediately.
14 */
15
16 #define IN_LIBXML
17 #include "libxml.h"
18
19 #ifdef LIBXML_SCHEMAS_ENABLED
20
21 #include <string.h>
22 #include <stdio.h>
23 #include <libxml/xmlmemory.h>
24 #include <libxml/parser.h>
25 #include <libxml/parserInternals.h>
26 #include <libxml/hash.h>
27 #include <libxml/uri.h>
28
29 #include <libxml/relaxng.h>
30
31 #include <libxml/xmlschemastypes.h>
32 #include <libxml/xmlautomata.h>
33 #include <libxml/xmlregexp.h>
34 #include <libxml/xmlschemastypes.h>
35
36 /*
37 * The Relax-NG namespace
38 */
39 static const xmlChar *xmlRelaxNGNs = (const xmlChar *)
40 "http://relaxng.org/ns/structure/1.0";
41
42 #define IS_RELAXNG(node, typ) \
43 ((node != NULL) && (node->ns != NULL) && \
44 (node->type == XML_ELEMENT_NODE) && \
45 (xmlStrEqual(node->name, (const xmlChar *) typ)) && \
46 (xmlStrEqual(node->ns->href, xmlRelaxNGNs)))
47
48
49 #if 0
50 #define DEBUG 1
51
52 #define DEBUG_GRAMMAR 1
53
54 #define DEBUG_CONTENT 1
55
56 #define DEBUG_TYPE 1
57
58 #define DEBUG_VALID 1
59
60 #define DEBUG_INTERLEAVE 1
61
62 #define DEBUG_LIST 1
63
64 #define DEBUG_INCLUDE 1
65
66 #define DEBUG_ERROR 1
67
68 #define DEBUG_COMPILE 1
69
70 #define DEBUG_PROGRESSIVE 1
71 #endif
72
73 #define MAX_ERROR 5
74
75 #define TODO \
76 xmlGenericError(xmlGenericErrorContext, \
77 "Unimplemented block at %s:%d\n", \
78 __FILE__, __LINE__);
79
80 typedef struct _xmlRelaxNGSchema xmlRelaxNGSchema;
81 typedef xmlRelaxNGSchema *xmlRelaxNGSchemaPtr;
82
83 typedef struct _xmlRelaxNGDefine xmlRelaxNGDefine;
84 typedef xmlRelaxNGDefine *xmlRelaxNGDefinePtr;
85
86 typedef struct _xmlRelaxNGDocument xmlRelaxNGDocument;
87 typedef xmlRelaxNGDocument *xmlRelaxNGDocumentPtr;
88
89 typedef struct _xmlRelaxNGInclude xmlRelaxNGInclude;
90 typedef xmlRelaxNGInclude *xmlRelaxNGIncludePtr;
91
92 typedef enum {
93 XML_RELAXNG_COMBINE_UNDEFINED = 0, /* undefined */
94 XML_RELAXNG_COMBINE_CHOICE, /* choice */
95 XML_RELAXNG_COMBINE_INTERLEAVE /* interleave */
96 } xmlRelaxNGCombine;
97
98 typedef enum {
99 XML_RELAXNG_CONTENT_ERROR = -1,
100 XML_RELAXNG_CONTENT_EMPTY = 0,
101 XML_RELAXNG_CONTENT_SIMPLE,
102 XML_RELAXNG_CONTENT_COMPLEX
103 } xmlRelaxNGContentType;
104
105 typedef struct _xmlRelaxNGGrammar xmlRelaxNGGrammar;
106 typedef xmlRelaxNGGrammar *xmlRelaxNGGrammarPtr;
107
108 struct _xmlRelaxNGGrammar {
109 xmlRelaxNGGrammarPtr parent; /* the parent grammar if any */
110 xmlRelaxNGGrammarPtr children; /* the children grammar if any */
111 xmlRelaxNGGrammarPtr next; /* the next grammar if any */
112 xmlRelaxNGDefinePtr start; /* <start> content */
113 xmlRelaxNGCombine combine; /* the default combine value */
114 xmlRelaxNGDefinePtr startList; /* list of <start> definitions */
115 xmlHashTablePtr defs; /* define* */
116 xmlHashTablePtr refs; /* references */
117 };
118
119
120 typedef enum {
121 XML_RELAXNG_NOOP = -1, /* a no operation from simplification */
122 XML_RELAXNG_EMPTY = 0, /* an empty pattern */
123 XML_RELAXNG_NOT_ALLOWED, /* not allowed top */
124 XML_RELAXNG_EXCEPT, /* except present in nameclass defs */
125 XML_RELAXNG_TEXT, /* textual content */
126 XML_RELAXNG_ELEMENT, /* an element */
127 XML_RELAXNG_DATATYPE, /* extenal data type definition */
128 XML_RELAXNG_PARAM, /* extenal data type parameter */
129 XML_RELAXNG_VALUE, /* value from an extenal data type definition */
130 XML_RELAXNG_LIST, /* a list of patterns */
131 XML_RELAXNG_ATTRIBUTE, /* an attrbute following a pattern */
132 XML_RELAXNG_DEF, /* a definition */
133 XML_RELAXNG_REF, /* reference to a definition */
134 XML_RELAXNG_EXTERNALREF, /* reference to an external def */
135 XML_RELAXNG_PARENTREF, /* reference to a def in the parent grammar */
136 XML_RELAXNG_OPTIONAL, /* optional patterns */
137 XML_RELAXNG_ZEROORMORE, /* zero or more non empty patterns */
138 XML_RELAXNG_ONEORMORE, /* one or more non empty patterns */
139 XML_RELAXNG_CHOICE, /* a choice between non empty patterns */
140 XML_RELAXNG_GROUP, /* a pair/group of non empty patterns */
141 XML_RELAXNG_INTERLEAVE, /* interleaving choice of non-empty patterns */
142 XML_RELAXNG_START /* Used to keep track of starts on grammars */
143 } xmlRelaxNGType;
144
145 #define IS_NULLABLE (1 << 0)
146 #define IS_NOT_NULLABLE (1 << 1)
147 #define IS_INDETERMINIST (1 << 2)
148 #define IS_MIXED (1 << 3)
149 #define IS_TRIABLE (1 << 4)
150 #define IS_PROCESSED (1 << 5)
151 #define IS_COMPILABLE (1 << 6)
152 #define IS_NOT_COMPILABLE (1 << 7)
153 #define IS_EXTERNAL_REF (1 << 8)
154
155 struct _xmlRelaxNGDefine {
156 xmlRelaxNGType type; /* the type of definition */
157 xmlNodePtr node; /* the node in the source */
158 xmlChar *name; /* the element local name if present */
159 xmlChar *ns; /* the namespace local name if present */
160 xmlChar *value; /* value when available */
161 void *data; /* data lib or specific pointer */
162 xmlRelaxNGDefinePtr content; /* the expected content */
163 xmlRelaxNGDefinePtr parent; /* the parent definition, if any */
164 xmlRelaxNGDefinePtr next; /* list within grouping sequences */
165 xmlRelaxNGDefinePtr attrs; /* list of attributes for elements */
166 xmlRelaxNGDefinePtr nameClass; /* the nameClass definition if any */
167 xmlRelaxNGDefinePtr nextHash; /* next define in defs/refs hash tables */
168 short depth; /* used for the cycle detection */
169 short dflags; /* define related flags */
170 xmlRegexpPtr contModel; /* a compiled content model if available */
171 };
172
173 /**
174 * _xmlRelaxNG:
175 *
176 * A RelaxNGs definition
177 */
178 struct _xmlRelaxNG {
179 void *_private; /* unused by the library for users or bindings */
180 xmlRelaxNGGrammarPtr topgrammar;
181 xmlDocPtr doc;
182
183 int idref; /* requires idref checking */
184
185 xmlHashTablePtr defs; /* define */
186 xmlHashTablePtr refs; /* references */
187 xmlRelaxNGDocumentPtr documents; /* all the documents loaded */
188 xmlRelaxNGIncludePtr includes; /* all the includes loaded */
189 int defNr; /* number of defines used */
190 xmlRelaxNGDefinePtr *defTab; /* pointer to the allocated definitions */
191
192 };
193
194 #define XML_RELAXNG_IN_ATTRIBUTE (1 << 0)
195 #define XML_RELAXNG_IN_ONEORMORE (1 << 1)
196 #define XML_RELAXNG_IN_LIST (1 << 2)
197 #define XML_RELAXNG_IN_DATAEXCEPT (1 << 3)
198 #define XML_RELAXNG_IN_START (1 << 4)
199 #define XML_RELAXNG_IN_OOMGROUP (1 << 5)
200 #define XML_RELAXNG_IN_OOMINTERLEAVE (1 << 6)
201 #define XML_RELAXNG_IN_EXTERNALREF (1 << 7)
202 #define XML_RELAXNG_IN_ANYEXCEPT (1 << 8)
203 #define XML_RELAXNG_IN_NSEXCEPT (1 << 9)
204
205 struct _xmlRelaxNGParserCtxt {
206 void *userData; /* user specific data block */
207 xmlRelaxNGValidityErrorFunc error; /* the callback in case of errors */
208 xmlRelaxNGValidityWarningFunc warning; /* the callback in case of warning */
209 xmlStructuredErrorFunc serror;
210 xmlRelaxNGValidErr err;
211
212 xmlRelaxNGPtr schema; /* The schema in use */
213 xmlRelaxNGGrammarPtr grammar; /* the current grammar */
214 xmlRelaxNGGrammarPtr parentgrammar; /* the parent grammar */
215 int flags; /* parser flags */
216 int nbErrors; /* number of errors at parse time */
217 int nbWarnings; /* number of warnings at parse time */
218 const xmlChar *define; /* the current define scope */
219 xmlRelaxNGDefinePtr def; /* the current define */
220
221 int nbInterleaves;
222 xmlHashTablePtr interleaves; /* keep track of all the interleaves */
223
224 xmlRelaxNGDocumentPtr documents; /* all the documents loaded */
225 xmlRelaxNGIncludePtr includes; /* all the includes loaded */
226 xmlChar *URL;
227 xmlDocPtr document;
228
229 int defNr; /* number of defines used */
230 int defMax; /* number of defines aloocated */
231 xmlRelaxNGDefinePtr *defTab; /* pointer to the allocated definitions */
232
233 const char *buffer;
234 int size;
235
236 /* the document stack */
237 xmlRelaxNGDocumentPtr doc; /* Current parsed external ref */
238 int docNr; /* Depth of the parsing stack */
239 int docMax; /* Max depth of the parsing stack */
240 xmlRelaxNGDocumentPtr *docTab; /* array of docs */
241
242 /* the include stack */
243 xmlRelaxNGIncludePtr inc; /* Current parsed include */
244 int incNr; /* Depth of the include parsing stack */
245 int incMax; /* Max depth of the parsing stack */
246 xmlRelaxNGIncludePtr *incTab; /* array of incs */
247
248 int idref; /* requires idref checking */
249
250 /* used to compile content models */
251 xmlAutomataPtr am; /* the automata */
252 xmlAutomataStatePtr state; /* used to build the automata */
253
254 int crng; /* compact syntax and other flags */
255 int freedoc; /* need to free the document */
256 };
257
258 #define FLAGS_IGNORABLE 1
259 #define FLAGS_NEGATIVE 2
260 #define FLAGS_MIXED_CONTENT 4
261 #define FLAGS_NOERROR 8
262
263 /**
264 * xmlRelaxNGInterleaveGroup:
265 *
266 * A RelaxNGs partition set associated to lists of definitions
267 */
268 typedef struct _xmlRelaxNGInterleaveGroup xmlRelaxNGInterleaveGroup;
269 typedef xmlRelaxNGInterleaveGroup *xmlRelaxNGInterleaveGroupPtr;
270 struct _xmlRelaxNGInterleaveGroup {
271 xmlRelaxNGDefinePtr rule; /* the rule to satisfy */
272 xmlRelaxNGDefinePtr *defs; /* the array of element definitions */
273 xmlRelaxNGDefinePtr *attrs; /* the array of attributes definitions */
274 };
275
276 #define IS_DETERMINIST 1
277 #define IS_NEEDCHECK 2
278
279 /**
280 * xmlRelaxNGPartitions:
281 *
282 * A RelaxNGs partition associated to an interleave group
283 */
284 typedef struct _xmlRelaxNGPartition xmlRelaxNGPartition;
285 typedef xmlRelaxNGPartition *xmlRelaxNGPartitionPtr;
286 struct _xmlRelaxNGPartition {
287 int nbgroups; /* number of groups in the partitions */
288 xmlHashTablePtr triage; /* hash table used to direct nodes to the
289 * right group when possible */
290 int flags; /* determinist ? */
291 xmlRelaxNGInterleaveGroupPtr *groups;
292 };
293
294 /**
295 * xmlRelaxNGValidState:
296 *
297 * A RelaxNGs validation state
298 */
299 #define MAX_ATTR 20
300 typedef struct _xmlRelaxNGValidState xmlRelaxNGValidState;
301 typedef xmlRelaxNGValidState *xmlRelaxNGValidStatePtr;
302 struct _xmlRelaxNGValidState {
303 xmlNodePtr node; /* the current node */
304 xmlNodePtr seq; /* the sequence of children left to validate */
305 int nbAttrs; /* the number of attributes */
306 int maxAttrs; /* the size of attrs */
307 int nbAttrLeft; /* the number of attributes left to validate */
308 xmlChar *value; /* the value when operating on string */
309 xmlChar *endvalue; /* the end value when operating on string */
310 xmlAttrPtr *attrs; /* the array of attributes */
311 };
312
313 /**
314 * xmlRelaxNGStates:
315 *
316 * A RelaxNGs container for validation state
317 */
318 typedef struct _xmlRelaxNGStates xmlRelaxNGStates;
319 typedef xmlRelaxNGStates *xmlRelaxNGStatesPtr;
320 struct _xmlRelaxNGStates {
321 int nbState; /* the number of states */
322 int maxState; /* the size of the array */
323 xmlRelaxNGValidStatePtr *tabState;
324 };
325
326 #define ERROR_IS_DUP 1
327
328 /**
329 * xmlRelaxNGValidError:
330 *
331 * A RelaxNGs validation error
332 */
333 typedef struct _xmlRelaxNGValidError xmlRelaxNGValidError;
334 typedef xmlRelaxNGValidError *xmlRelaxNGValidErrorPtr;
335 struct _xmlRelaxNGValidError {
336 xmlRelaxNGValidErr err; /* the error number */
337 int flags; /* flags */
338 xmlNodePtr node; /* the current node */
339 xmlNodePtr seq; /* the current child */
340 const xmlChar *arg1; /* first arg */
341 const xmlChar *arg2; /* second arg */
342 };
343
344 /**
345 * xmlRelaxNGValidCtxt:
346 *
347 * A RelaxNGs validation context
348 */
349
350 struct _xmlRelaxNGValidCtxt {
351 void *userData; /* user specific data block */
352 xmlRelaxNGValidityErrorFunc error; /* the callback in case of errors */
353 xmlRelaxNGValidityWarningFunc warning; /* the callback in case of warning */
354 xmlStructuredErrorFunc serror;
355 int nbErrors; /* number of errors in validation */
356
357 xmlRelaxNGPtr schema; /* The schema in use */
358 xmlDocPtr doc; /* the document being validated */
359 int flags; /* validation flags */
360 int depth; /* validation depth */
361 int idref; /* requires idref checking */
362 int errNo; /* the first error found */
363
364 /*
365 * Errors accumulated in branches may have to be stacked to be
366 * provided back when it's sure they affect validation.
367 */
368 xmlRelaxNGValidErrorPtr err; /* Last error */
369 int errNr; /* Depth of the error stack */
370 int errMax; /* Max depth of the error stack */
371 xmlRelaxNGValidErrorPtr errTab; /* stack of errors */
372
373 xmlRelaxNGValidStatePtr state; /* the current validation state */
374 xmlRelaxNGStatesPtr states; /* the accumulated state list */
375
376 xmlRelaxNGStatesPtr freeState; /* the pool of free valid states */
377 int freeStatesNr;
378 int freeStatesMax;
379 xmlRelaxNGStatesPtr *freeStates; /* the pool of free state groups */
380
381 /*
382 * This is used for "progressive" validation
383 */
384 xmlRegExecCtxtPtr elem; /* the current element regexp */
385 int elemNr; /* the number of element validated */
386 int elemMax; /* the max depth of elements */
387 xmlRegExecCtxtPtr *elemTab; /* the stack of regexp runtime */
388 int pstate; /* progressive state */
389 xmlNodePtr pnode; /* the current node */
390 xmlRelaxNGDefinePtr pdef; /* the non-streamable definition */
391 int perr; /* signal error in content model
392 * outside the regexp */
393 };
394
395 /**
396 * xmlRelaxNGInclude:
397 *
398 * Structure associated to a RelaxNGs document element
399 */
400 struct _xmlRelaxNGInclude {
401 xmlRelaxNGIncludePtr next; /* keep a chain of includes */
402 xmlChar *href; /* the normalized href value */
403 xmlDocPtr doc; /* the associated XML document */
404 xmlRelaxNGDefinePtr content; /* the definitions */
405 xmlRelaxNGPtr schema; /* the schema */
406 };
407
408 /**
409 * xmlRelaxNGDocument:
410 *
411 * Structure associated to a RelaxNGs document element
412 */
413 struct _xmlRelaxNGDocument {
414 xmlRelaxNGDocumentPtr next; /* keep a chain of documents */
415 xmlChar *href; /* the normalized href value */
416 xmlDocPtr doc; /* the associated XML document */
417 xmlRelaxNGDefinePtr content; /* the definitions */
418 xmlRelaxNGPtr schema; /* the schema */
419 int externalRef; /* 1 if an external ref */
420 };
421
422
423 /************************************************************************
424 * *
425 * Some factorized error routines *
426 * *
427 ************************************************************************/
428
429 /**
430 * xmlRngPErrMemory:
431 * @ctxt: an Relax-NG parser context
432 * @extra: extra informations
433 *
434 * Handle a redefinition of attribute error
435 */
436 static void
xmlRngPErrMemory(xmlRelaxNGParserCtxtPtr ctxt,const char * extra)437 xmlRngPErrMemory(xmlRelaxNGParserCtxtPtr ctxt, const char *extra)
438 {
439 xmlStructuredErrorFunc schannel = NULL;
440 xmlGenericErrorFunc channel = NULL;
441 void *data = NULL;
442
443 if (ctxt != NULL) {
444 if (ctxt->serror != NULL)
445 schannel = ctxt->serror;
446 else
447 channel = ctxt->error;
448 data = ctxt->userData;
449 ctxt->nbErrors++;
450 }
451 if (extra)
452 __xmlRaiseError(schannel, channel, data,
453 NULL, NULL, XML_FROM_RELAXNGP,
454 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
455 NULL, NULL, 0, 0,
456 "Memory allocation failed : %s\n", extra);
457 else
458 __xmlRaiseError(schannel, channel, data,
459 NULL, NULL, XML_FROM_RELAXNGP,
460 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
461 NULL, NULL, 0, 0, "Memory allocation failed\n");
462 }
463
464 /**
465 * xmlRngVErrMemory:
466 * @ctxt: a Relax-NG validation context
467 * @extra: extra informations
468 *
469 * Handle a redefinition of attribute error
470 */
471 static void
xmlRngVErrMemory(xmlRelaxNGValidCtxtPtr ctxt,const char * extra)472 xmlRngVErrMemory(xmlRelaxNGValidCtxtPtr ctxt, const char *extra)
473 {
474 xmlStructuredErrorFunc schannel = NULL;
475 xmlGenericErrorFunc channel = NULL;
476 void *data = NULL;
477
478 if (ctxt != NULL) {
479 if (ctxt->serror != NULL)
480 schannel = ctxt->serror;
481 else
482 channel = ctxt->error;
483 data = ctxt->userData;
484 ctxt->nbErrors++;
485 }
486 if (extra)
487 __xmlRaiseError(schannel, channel, data,
488 NULL, NULL, XML_FROM_RELAXNGV,
489 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, extra,
490 NULL, NULL, 0, 0,
491 "Memory allocation failed : %s\n", extra);
492 else
493 __xmlRaiseError(schannel, channel, data,
494 NULL, NULL, XML_FROM_RELAXNGV,
495 XML_ERR_NO_MEMORY, XML_ERR_FATAL, NULL, 0, NULL,
496 NULL, NULL, 0, 0, "Memory allocation failed\n");
497 }
498
499 /**
500 * xmlRngPErr:
501 * @ctxt: a Relax-NG parser context
502 * @node: the node raising the error
503 * @error: the error code
504 * @msg: message
505 * @str1: extra info
506 * @str2: extra info
507 *
508 * Handle a Relax NG Parsing error
509 */
510 static void
xmlRngPErr(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node,int error,const char * msg,const xmlChar * str1,const xmlChar * str2)511 xmlRngPErr(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node, int error,
512 const char *msg, const xmlChar * str1, const xmlChar * str2)
513 {
514 xmlStructuredErrorFunc schannel = NULL;
515 xmlGenericErrorFunc channel = NULL;
516 void *data = NULL;
517
518 if (ctxt != NULL) {
519 if (ctxt->serror != NULL)
520 schannel = ctxt->serror;
521 else
522 channel = ctxt->error;
523 data = ctxt->userData;
524 ctxt->nbErrors++;
525 }
526 __xmlRaiseError(schannel, channel, data,
527 NULL, node, XML_FROM_RELAXNGP,
528 error, XML_ERR_ERROR, NULL, 0,
529 (const char *) str1, (const char *) str2, NULL, 0, 0,
530 msg, str1, str2);
531 }
532
533 /**
534 * xmlRngVErr:
535 * @ctxt: a Relax-NG validation context
536 * @node: the node raising the error
537 * @error: the error code
538 * @msg: message
539 * @str1: extra info
540 * @str2: extra info
541 *
542 * Handle a Relax NG Validation error
543 */
544 static void
xmlRngVErr(xmlRelaxNGValidCtxtPtr ctxt,xmlNodePtr node,int error,const char * msg,const xmlChar * str1,const xmlChar * str2)545 xmlRngVErr(xmlRelaxNGValidCtxtPtr ctxt, xmlNodePtr node, int error,
546 const char *msg, const xmlChar * str1, const xmlChar * str2)
547 {
548 xmlStructuredErrorFunc schannel = NULL;
549 xmlGenericErrorFunc channel = NULL;
550 void *data = NULL;
551
552 if (ctxt != NULL) {
553 if (ctxt->serror != NULL)
554 schannel = ctxt->serror;
555 else
556 channel = ctxt->error;
557 data = ctxt->userData;
558 ctxt->nbErrors++;
559 }
560 __xmlRaiseError(schannel, channel, data,
561 NULL, node, XML_FROM_RELAXNGV,
562 error, XML_ERR_ERROR, NULL, 0,
563 (const char *) str1, (const char *) str2, NULL, 0, 0,
564 msg, str1, str2);
565 }
566
567 /************************************************************************
568 * *
569 * Preliminary type checking interfaces *
570 * *
571 ************************************************************************/
572
573 /**
574 * xmlRelaxNGTypeHave:
575 * @data: data needed for the library
576 * @type: the type name
577 * @value: the value to check
578 *
579 * Function provided by a type library to check if a type is exported
580 *
581 * Returns 1 if yes, 0 if no and -1 in case of error.
582 */
583 typedef int (*xmlRelaxNGTypeHave) (void *data, const xmlChar * type);
584
585 /**
586 * xmlRelaxNGTypeCheck:
587 * @data: data needed for the library
588 * @type: the type name
589 * @value: the value to check
590 * @result: place to store the result if needed
591 *
592 * Function provided by a type library to check if a value match a type
593 *
594 * Returns 1 if yes, 0 if no and -1 in case of error.
595 */
596 typedef int (*xmlRelaxNGTypeCheck) (void *data, const xmlChar * type,
597 const xmlChar * value, void **result,
598 xmlNodePtr node);
599
600 /**
601 * xmlRelaxNGFacetCheck:
602 * @data: data needed for the library
603 * @type: the type name
604 * @facet: the facet name
605 * @val: the facet value
606 * @strval: the string value
607 * @value: the value to check
608 *
609 * Function provided by a type library to check a value facet
610 *
611 * Returns 1 if yes, 0 if no and -1 in case of error.
612 */
613 typedef int (*xmlRelaxNGFacetCheck) (void *data, const xmlChar * type,
614 const xmlChar * facet,
615 const xmlChar * val,
616 const xmlChar * strval, void *value);
617
618 /**
619 * xmlRelaxNGTypeFree:
620 * @data: data needed for the library
621 * @result: the value to free
622 *
623 * Function provided by a type library to free a returned result
624 */
625 typedef void (*xmlRelaxNGTypeFree) (void *data, void *result);
626
627 /**
628 * xmlRelaxNGTypeCompare:
629 * @data: data needed for the library
630 * @type: the type name
631 * @value1: the first value
632 * @value2: the second value
633 *
634 * Function provided by a type library to compare two values accordingly
635 * to a type.
636 *
637 * Returns 1 if yes, 0 if no and -1 in case of error.
638 */
639 typedef int (*xmlRelaxNGTypeCompare) (void *data, const xmlChar * type,
640 const xmlChar * value1,
641 xmlNodePtr ctxt1,
642 void *comp1,
643 const xmlChar * value2,
644 xmlNodePtr ctxt2);
645 typedef struct _xmlRelaxNGTypeLibrary xmlRelaxNGTypeLibrary;
646 typedef xmlRelaxNGTypeLibrary *xmlRelaxNGTypeLibraryPtr;
647 struct _xmlRelaxNGTypeLibrary {
648 const xmlChar *namespace; /* the datatypeLibrary value */
649 void *data; /* data needed for the library */
650 xmlRelaxNGTypeHave have; /* the export function */
651 xmlRelaxNGTypeCheck check; /* the checking function */
652 xmlRelaxNGTypeCompare comp; /* the compare function */
653 xmlRelaxNGFacetCheck facet; /* the facet check function */
654 xmlRelaxNGTypeFree freef; /* the freeing function */
655 };
656
657 /************************************************************************
658 * *
659 * Allocation functions *
660 * *
661 ************************************************************************/
662 static void xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar);
663 static void xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define);
664 static void xmlRelaxNGNormExtSpace(xmlChar * value);
665 static void xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema);
666 static int xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt
667 ATTRIBUTE_UNUSED,
668 xmlRelaxNGValidStatePtr state1,
669 xmlRelaxNGValidStatePtr state2);
670 static void xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,
671 xmlRelaxNGValidStatePtr state);
672
673 /**
674 * xmlRelaxNGFreeDocument:
675 * @docu: a document structure
676 *
677 * Deallocate a RelaxNG document structure.
678 */
679 static void
xmlRelaxNGFreeDocument(xmlRelaxNGDocumentPtr docu)680 xmlRelaxNGFreeDocument(xmlRelaxNGDocumentPtr docu)
681 {
682 if (docu == NULL)
683 return;
684
685 if (docu->href != NULL)
686 xmlFree(docu->href);
687 if (docu->doc != NULL)
688 xmlFreeDoc(docu->doc);
689 if (docu->schema != NULL)
690 xmlRelaxNGFreeInnerSchema(docu->schema);
691 xmlFree(docu);
692 }
693
694 /**
695 * xmlRelaxNGFreeDocumentList:
696 * @docu: a list of document structure
697 *
698 * Deallocate a RelaxNG document structures.
699 */
700 static void
xmlRelaxNGFreeDocumentList(xmlRelaxNGDocumentPtr docu)701 xmlRelaxNGFreeDocumentList(xmlRelaxNGDocumentPtr docu)
702 {
703 xmlRelaxNGDocumentPtr next;
704
705 while (docu != NULL) {
706 next = docu->next;
707 xmlRelaxNGFreeDocument(docu);
708 docu = next;
709 }
710 }
711
712 /**
713 * xmlRelaxNGFreeInclude:
714 * @incl: a include structure
715 *
716 * Deallocate a RelaxNG include structure.
717 */
718 static void
xmlRelaxNGFreeInclude(xmlRelaxNGIncludePtr incl)719 xmlRelaxNGFreeInclude(xmlRelaxNGIncludePtr incl)
720 {
721 if (incl == NULL)
722 return;
723
724 if (incl->href != NULL)
725 xmlFree(incl->href);
726 if (incl->doc != NULL)
727 xmlFreeDoc(incl->doc);
728 if (incl->schema != NULL)
729 xmlRelaxNGFree(incl->schema);
730 xmlFree(incl);
731 }
732
733 /**
734 * xmlRelaxNGFreeIncludeList:
735 * @incl: a include structure list
736 *
737 * Deallocate a RelaxNG include structure.
738 */
739 static void
xmlRelaxNGFreeIncludeList(xmlRelaxNGIncludePtr incl)740 xmlRelaxNGFreeIncludeList(xmlRelaxNGIncludePtr incl)
741 {
742 xmlRelaxNGIncludePtr next;
743
744 while (incl != NULL) {
745 next = incl->next;
746 xmlRelaxNGFreeInclude(incl);
747 incl = next;
748 }
749 }
750
751 /**
752 * xmlRelaxNGNewRelaxNG:
753 * @ctxt: a Relax-NG validation context (optional)
754 *
755 * Allocate a new RelaxNG structure.
756 *
757 * Returns the newly allocated structure or NULL in case or error
758 */
759 static xmlRelaxNGPtr
xmlRelaxNGNewRelaxNG(xmlRelaxNGParserCtxtPtr ctxt)760 xmlRelaxNGNewRelaxNG(xmlRelaxNGParserCtxtPtr ctxt)
761 {
762 xmlRelaxNGPtr ret;
763
764 ret = (xmlRelaxNGPtr) xmlMalloc(sizeof(xmlRelaxNG));
765 if (ret == NULL) {
766 xmlRngPErrMemory(ctxt, NULL);
767 return (NULL);
768 }
769 memset(ret, 0, sizeof(xmlRelaxNG));
770
771 return (ret);
772 }
773
774 /**
775 * xmlRelaxNGFreeInnerSchema:
776 * @schema: a schema structure
777 *
778 * Deallocate a RelaxNG schema structure.
779 */
780 static void
xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema)781 xmlRelaxNGFreeInnerSchema(xmlRelaxNGPtr schema)
782 {
783 if (schema == NULL)
784 return;
785
786 if (schema->doc != NULL)
787 xmlFreeDoc(schema->doc);
788 if (schema->defTab != NULL) {
789 int i;
790
791 for (i = 0; i < schema->defNr; i++)
792 xmlRelaxNGFreeDefine(schema->defTab[i]);
793 xmlFree(schema->defTab);
794 }
795
796 xmlFree(schema);
797 }
798
799 /**
800 * xmlRelaxNGFree:
801 * @schema: a schema structure
802 *
803 * Deallocate a RelaxNG structure.
804 */
805 void
xmlRelaxNGFree(xmlRelaxNGPtr schema)806 xmlRelaxNGFree(xmlRelaxNGPtr schema)
807 {
808 if (schema == NULL)
809 return;
810
811 if (schema->topgrammar != NULL)
812 xmlRelaxNGFreeGrammar(schema->topgrammar);
813 if (schema->doc != NULL)
814 xmlFreeDoc(schema->doc);
815 if (schema->documents != NULL)
816 xmlRelaxNGFreeDocumentList(schema->documents);
817 if (schema->includes != NULL)
818 xmlRelaxNGFreeIncludeList(schema->includes);
819 if (schema->defTab != NULL) {
820 int i;
821
822 for (i = 0; i < schema->defNr; i++)
823 xmlRelaxNGFreeDefine(schema->defTab[i]);
824 xmlFree(schema->defTab);
825 }
826
827 xmlFree(schema);
828 }
829
830 /**
831 * xmlRelaxNGNewGrammar:
832 * @ctxt: a Relax-NG validation context (optional)
833 *
834 * Allocate a new RelaxNG grammar.
835 *
836 * Returns the newly allocated structure or NULL in case or error
837 */
838 static xmlRelaxNGGrammarPtr
xmlRelaxNGNewGrammar(xmlRelaxNGParserCtxtPtr ctxt)839 xmlRelaxNGNewGrammar(xmlRelaxNGParserCtxtPtr ctxt)
840 {
841 xmlRelaxNGGrammarPtr ret;
842
843 ret = (xmlRelaxNGGrammarPtr) xmlMalloc(sizeof(xmlRelaxNGGrammar));
844 if (ret == NULL) {
845 xmlRngPErrMemory(ctxt, NULL);
846 return (NULL);
847 }
848 memset(ret, 0, sizeof(xmlRelaxNGGrammar));
849
850 return (ret);
851 }
852
853 /**
854 * xmlRelaxNGFreeGrammar:
855 * @grammar: a grammar structure
856 *
857 * Deallocate a RelaxNG grammar structure.
858 */
859 static void
xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar)860 xmlRelaxNGFreeGrammar(xmlRelaxNGGrammarPtr grammar)
861 {
862 if (grammar == NULL)
863 return;
864
865 if (grammar->children != NULL) {
866 xmlRelaxNGFreeGrammar(grammar->children);
867 }
868 if (grammar->next != NULL) {
869 xmlRelaxNGFreeGrammar(grammar->next);
870 }
871 if (grammar->refs != NULL) {
872 xmlHashFree(grammar->refs, NULL);
873 }
874 if (grammar->defs != NULL) {
875 xmlHashFree(grammar->defs, NULL);
876 }
877
878 xmlFree(grammar);
879 }
880
881 /**
882 * xmlRelaxNGNewDefine:
883 * @ctxt: a Relax-NG validation context
884 * @node: the node in the input document.
885 *
886 * Allocate a new RelaxNG define.
887 *
888 * Returns the newly allocated structure or NULL in case or error
889 */
890 static xmlRelaxNGDefinePtr
xmlRelaxNGNewDefine(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)891 xmlRelaxNGNewDefine(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
892 {
893 xmlRelaxNGDefinePtr ret;
894
895 if (ctxt->defMax == 0) {
896 ctxt->defMax = 16;
897 ctxt->defNr = 0;
898 ctxt->defTab = (xmlRelaxNGDefinePtr *)
899 xmlMalloc(ctxt->defMax * sizeof(xmlRelaxNGDefinePtr));
900 if (ctxt->defTab == NULL) {
901 xmlRngPErrMemory(ctxt, "allocating define\n");
902 return (NULL);
903 }
904 } else if (ctxt->defMax <= ctxt->defNr) {
905 xmlRelaxNGDefinePtr *tmp;
906
907 ctxt->defMax *= 2;
908 tmp = (xmlRelaxNGDefinePtr *) xmlRealloc(ctxt->defTab,
909 ctxt->defMax *
910 sizeof
911 (xmlRelaxNGDefinePtr));
912 if (tmp == NULL) {
913 xmlRngPErrMemory(ctxt, "allocating define\n");
914 return (NULL);
915 }
916 ctxt->defTab = tmp;
917 }
918 ret = (xmlRelaxNGDefinePtr) xmlMalloc(sizeof(xmlRelaxNGDefine));
919 if (ret == NULL) {
920 xmlRngPErrMemory(ctxt, "allocating define\n");
921 return (NULL);
922 }
923 memset(ret, 0, sizeof(xmlRelaxNGDefine));
924 ctxt->defTab[ctxt->defNr++] = ret;
925 ret->node = node;
926 ret->depth = -1;
927 return (ret);
928 }
929
930 /**
931 * xmlRelaxNGFreePartition:
932 * @partitions: a partition set structure
933 *
934 * Deallocate RelaxNG partition set structures.
935 */
936 static void
xmlRelaxNGFreePartition(xmlRelaxNGPartitionPtr partitions)937 xmlRelaxNGFreePartition(xmlRelaxNGPartitionPtr partitions)
938 {
939 xmlRelaxNGInterleaveGroupPtr group;
940 int j;
941
942 if (partitions != NULL) {
943 if (partitions->groups != NULL) {
944 for (j = 0; j < partitions->nbgroups; j++) {
945 group = partitions->groups[j];
946 if (group != NULL) {
947 if (group->defs != NULL)
948 xmlFree(group->defs);
949 if (group->attrs != NULL)
950 xmlFree(group->attrs);
951 xmlFree(group);
952 }
953 }
954 xmlFree(partitions->groups);
955 }
956 if (partitions->triage != NULL) {
957 xmlHashFree(partitions->triage, NULL);
958 }
959 xmlFree(partitions);
960 }
961 }
962
963 /**
964 * xmlRelaxNGFreeDefine:
965 * @define: a define structure
966 *
967 * Deallocate a RelaxNG define structure.
968 */
969 static void
xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define)970 xmlRelaxNGFreeDefine(xmlRelaxNGDefinePtr define)
971 {
972 if (define == NULL)
973 return;
974
975 if ((define->type == XML_RELAXNG_VALUE) && (define->attrs != NULL)) {
976 xmlRelaxNGTypeLibraryPtr lib;
977
978 lib = (xmlRelaxNGTypeLibraryPtr) define->data;
979 if ((lib != NULL) && (lib->freef != NULL))
980 lib->freef(lib->data, (void *) define->attrs);
981 }
982 if ((define->data != NULL) && (define->type == XML_RELAXNG_INTERLEAVE))
983 xmlRelaxNGFreePartition((xmlRelaxNGPartitionPtr) define->data);
984 if ((define->data != NULL) && (define->type == XML_RELAXNG_CHOICE))
985 xmlHashFree((xmlHashTablePtr) define->data, NULL);
986 if (define->name != NULL)
987 xmlFree(define->name);
988 if (define->ns != NULL)
989 xmlFree(define->ns);
990 if (define->value != NULL)
991 xmlFree(define->value);
992 if (define->contModel != NULL)
993 xmlRegFreeRegexp(define->contModel);
994 xmlFree(define);
995 }
996
997 /**
998 * xmlRelaxNGNewStates:
999 * @ctxt: a Relax-NG validation context
1000 * @size: the default size for the container
1001 *
1002 * Allocate a new RelaxNG validation state container
1003 *
1004 * Returns the newly allocated structure or NULL in case or error
1005 */
1006 static xmlRelaxNGStatesPtr
xmlRelaxNGNewStates(xmlRelaxNGValidCtxtPtr ctxt,int size)1007 xmlRelaxNGNewStates(xmlRelaxNGValidCtxtPtr ctxt, int size)
1008 {
1009 xmlRelaxNGStatesPtr ret;
1010
1011 if ((ctxt != NULL) &&
1012 (ctxt->freeStates != NULL) && (ctxt->freeStatesNr > 0)) {
1013 ctxt->freeStatesNr--;
1014 ret = ctxt->freeStates[ctxt->freeStatesNr];
1015 ret->nbState = 0;
1016 return (ret);
1017 }
1018 if (size < 16)
1019 size = 16;
1020
1021 ret = (xmlRelaxNGStatesPtr) xmlMalloc(sizeof(xmlRelaxNGStates) +
1022 (size -
1023 1) *
1024 sizeof(xmlRelaxNGValidStatePtr));
1025 if (ret == NULL) {
1026 xmlRngVErrMemory(ctxt, "allocating states\n");
1027 return (NULL);
1028 }
1029 ret->nbState = 0;
1030 ret->maxState = size;
1031 ret->tabState = (xmlRelaxNGValidStatePtr *) xmlMalloc((size) *
1032 sizeof
1033 (xmlRelaxNGValidStatePtr));
1034 if (ret->tabState == NULL) {
1035 xmlRngVErrMemory(ctxt, "allocating states\n");
1036 xmlFree(ret);
1037 return (NULL);
1038 }
1039 return (ret);
1040 }
1041
1042 /**
1043 * xmlRelaxNGAddStateUniq:
1044 * @ctxt: a Relax-NG validation context
1045 * @states: the states container
1046 * @state: the validation state
1047 *
1048 * Add a RelaxNG validation state to the container without checking
1049 * for unicity.
1050 *
1051 * Return 1 in case of success and 0 if this is a duplicate and -1 on error
1052 */
1053 static int
xmlRelaxNGAddStatesUniq(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGStatesPtr states,xmlRelaxNGValidStatePtr state)1054 xmlRelaxNGAddStatesUniq(xmlRelaxNGValidCtxtPtr ctxt,
1055 xmlRelaxNGStatesPtr states,
1056 xmlRelaxNGValidStatePtr state)
1057 {
1058 if (state == NULL) {
1059 return (-1);
1060 }
1061 if (states->nbState >= states->maxState) {
1062 xmlRelaxNGValidStatePtr *tmp;
1063 int size;
1064
1065 size = states->maxState * 2;
1066 tmp = (xmlRelaxNGValidStatePtr *) xmlRealloc(states->tabState,
1067 (size) *
1068 sizeof
1069 (xmlRelaxNGValidStatePtr));
1070 if (tmp == NULL) {
1071 xmlRngVErrMemory(ctxt, "adding states\n");
1072 return (-1);
1073 }
1074 states->tabState = tmp;
1075 states->maxState = size;
1076 }
1077 states->tabState[states->nbState++] = state;
1078 return (1);
1079 }
1080
1081 /**
1082 * xmlRelaxNGAddState:
1083 * @ctxt: a Relax-NG validation context
1084 * @states: the states container
1085 * @state: the validation state
1086 *
1087 * Add a RelaxNG validation state to the container
1088 *
1089 * Return 1 in case of success and 0 if this is a duplicate and -1 on error
1090 */
1091 static int
xmlRelaxNGAddStates(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGStatesPtr states,xmlRelaxNGValidStatePtr state)1092 xmlRelaxNGAddStates(xmlRelaxNGValidCtxtPtr ctxt,
1093 xmlRelaxNGStatesPtr states,
1094 xmlRelaxNGValidStatePtr state)
1095 {
1096 int i;
1097
1098 if (state == NULL || states == NULL) {
1099 return (-1);
1100 }
1101 if (states->nbState >= states->maxState) {
1102 xmlRelaxNGValidStatePtr *tmp;
1103 int size;
1104
1105 size = states->maxState * 2;
1106 tmp = (xmlRelaxNGValidStatePtr *) xmlRealloc(states->tabState,
1107 (size) *
1108 sizeof
1109 (xmlRelaxNGValidStatePtr));
1110 if (tmp == NULL) {
1111 xmlRngVErrMemory(ctxt, "adding states\n");
1112 return (-1);
1113 }
1114 states->tabState = tmp;
1115 states->maxState = size;
1116 }
1117 for (i = 0; i < states->nbState; i++) {
1118 if (xmlRelaxNGEqualValidState(ctxt, state, states->tabState[i])) {
1119 xmlRelaxNGFreeValidState(ctxt, state);
1120 return (0);
1121 }
1122 }
1123 states->tabState[states->nbState++] = state;
1124 return (1);
1125 }
1126
1127 /**
1128 * xmlRelaxNGFreeStates:
1129 * @ctxt: a Relax-NG validation context
1130 * @states: teh container
1131 *
1132 * Free a RelaxNG validation state container
1133 */
1134 static void
xmlRelaxNGFreeStates(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGStatesPtr states)1135 xmlRelaxNGFreeStates(xmlRelaxNGValidCtxtPtr ctxt,
1136 xmlRelaxNGStatesPtr states)
1137 {
1138 if (states == NULL)
1139 return;
1140 if ((ctxt != NULL) && (ctxt->freeStates == NULL)) {
1141 ctxt->freeStatesMax = 40;
1142 ctxt->freeStatesNr = 0;
1143 ctxt->freeStates = (xmlRelaxNGStatesPtr *)
1144 xmlMalloc(ctxt->freeStatesMax * sizeof(xmlRelaxNGStatesPtr));
1145 if (ctxt->freeStates == NULL) {
1146 xmlRngVErrMemory(ctxt, "storing states\n");
1147 }
1148 } else if ((ctxt != NULL)
1149 && (ctxt->freeStatesNr >= ctxt->freeStatesMax)) {
1150 xmlRelaxNGStatesPtr *tmp;
1151
1152 tmp = (xmlRelaxNGStatesPtr *) xmlRealloc(ctxt->freeStates,
1153 2 * ctxt->freeStatesMax *
1154 sizeof
1155 (xmlRelaxNGStatesPtr));
1156 if (tmp == NULL) {
1157 xmlRngVErrMemory(ctxt, "storing states\n");
1158 xmlFree(states->tabState);
1159 xmlFree(states);
1160 return;
1161 }
1162 ctxt->freeStates = tmp;
1163 ctxt->freeStatesMax *= 2;
1164 }
1165 if ((ctxt == NULL) || (ctxt->freeStates == NULL)) {
1166 xmlFree(states->tabState);
1167 xmlFree(states);
1168 } else {
1169 ctxt->freeStates[ctxt->freeStatesNr++] = states;
1170 }
1171 }
1172
1173 /**
1174 * xmlRelaxNGNewValidState:
1175 * @ctxt: a Relax-NG validation context
1176 * @node: the current node or NULL for the document
1177 *
1178 * Allocate a new RelaxNG validation state
1179 *
1180 * Returns the newly allocated structure or NULL in case or error
1181 */
1182 static xmlRelaxNGValidStatePtr
xmlRelaxNGNewValidState(xmlRelaxNGValidCtxtPtr ctxt,xmlNodePtr node)1183 xmlRelaxNGNewValidState(xmlRelaxNGValidCtxtPtr ctxt, xmlNodePtr node)
1184 {
1185 xmlRelaxNGValidStatePtr ret;
1186 xmlAttrPtr attr;
1187 xmlAttrPtr attrs[MAX_ATTR];
1188 int nbAttrs = 0;
1189 xmlNodePtr root = NULL;
1190
1191 if (node == NULL) {
1192 root = xmlDocGetRootElement(ctxt->doc);
1193 if (root == NULL)
1194 return (NULL);
1195 } else {
1196 attr = node->properties;
1197 while (attr != NULL) {
1198 if (nbAttrs < MAX_ATTR)
1199 attrs[nbAttrs++] = attr;
1200 else
1201 nbAttrs++;
1202 attr = attr->next;
1203 }
1204 }
1205 if ((ctxt->freeState != NULL) && (ctxt->freeState->nbState > 0)) {
1206 ctxt->freeState->nbState--;
1207 ret = ctxt->freeState->tabState[ctxt->freeState->nbState];
1208 } else {
1209 ret =
1210 (xmlRelaxNGValidStatePtr)
1211 xmlMalloc(sizeof(xmlRelaxNGValidState));
1212 if (ret == NULL) {
1213 xmlRngVErrMemory(ctxt, "allocating states\n");
1214 return (NULL);
1215 }
1216 memset(ret, 0, sizeof(xmlRelaxNGValidState));
1217 }
1218 ret->value = NULL;
1219 ret->endvalue = NULL;
1220 if (node == NULL) {
1221 ret->node = (xmlNodePtr) ctxt->doc;
1222 ret->seq = root;
1223 } else {
1224 ret->node = node;
1225 ret->seq = node->children;
1226 }
1227 ret->nbAttrs = 0;
1228 if (nbAttrs > 0) {
1229 if (ret->attrs == NULL) {
1230 if (nbAttrs < 4)
1231 ret->maxAttrs = 4;
1232 else
1233 ret->maxAttrs = nbAttrs;
1234 ret->attrs = (xmlAttrPtr *) xmlMalloc(ret->maxAttrs *
1235 sizeof(xmlAttrPtr));
1236 if (ret->attrs == NULL) {
1237 xmlRngVErrMemory(ctxt, "allocating states\n");
1238 return (ret);
1239 }
1240 } else if (ret->maxAttrs < nbAttrs) {
1241 xmlAttrPtr *tmp;
1242
1243 tmp = (xmlAttrPtr *) xmlRealloc(ret->attrs, nbAttrs *
1244 sizeof(xmlAttrPtr));
1245 if (tmp == NULL) {
1246 xmlRngVErrMemory(ctxt, "allocating states\n");
1247 return (ret);
1248 }
1249 ret->attrs = tmp;
1250 ret->maxAttrs = nbAttrs;
1251 }
1252 ret->nbAttrs = nbAttrs;
1253 if (nbAttrs < MAX_ATTR) {
1254 memcpy(ret->attrs, attrs, sizeof(xmlAttrPtr) * nbAttrs);
1255 } else {
1256 attr = node->properties;
1257 nbAttrs = 0;
1258 while (attr != NULL) {
1259 ret->attrs[nbAttrs++] = attr;
1260 attr = attr->next;
1261 }
1262 }
1263 }
1264 ret->nbAttrLeft = ret->nbAttrs;
1265 return (ret);
1266 }
1267
1268 /**
1269 * xmlRelaxNGCopyValidState:
1270 * @ctxt: a Relax-NG validation context
1271 * @state: a validation state
1272 *
1273 * Copy the validation state
1274 *
1275 * Returns the newly allocated structure or NULL in case or error
1276 */
1277 static xmlRelaxNGValidStatePtr
xmlRelaxNGCopyValidState(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidStatePtr state)1278 xmlRelaxNGCopyValidState(xmlRelaxNGValidCtxtPtr ctxt,
1279 xmlRelaxNGValidStatePtr state)
1280 {
1281 xmlRelaxNGValidStatePtr ret;
1282 unsigned int maxAttrs;
1283 xmlAttrPtr *attrs;
1284
1285 if (state == NULL)
1286 return (NULL);
1287 if ((ctxt->freeState != NULL) && (ctxt->freeState->nbState > 0)) {
1288 ctxt->freeState->nbState--;
1289 ret = ctxt->freeState->tabState[ctxt->freeState->nbState];
1290 } else {
1291 ret =
1292 (xmlRelaxNGValidStatePtr)
1293 xmlMalloc(sizeof(xmlRelaxNGValidState));
1294 if (ret == NULL) {
1295 xmlRngVErrMemory(ctxt, "allocating states\n");
1296 return (NULL);
1297 }
1298 memset(ret, 0, sizeof(xmlRelaxNGValidState));
1299 }
1300 attrs = ret->attrs;
1301 maxAttrs = ret->maxAttrs;
1302 memcpy(ret, state, sizeof(xmlRelaxNGValidState));
1303 ret->attrs = attrs;
1304 ret->maxAttrs = maxAttrs;
1305 if (state->nbAttrs > 0) {
1306 if (ret->attrs == NULL) {
1307 ret->maxAttrs = state->maxAttrs;
1308 ret->attrs = (xmlAttrPtr *) xmlMalloc(ret->maxAttrs *
1309 sizeof(xmlAttrPtr));
1310 if (ret->attrs == NULL) {
1311 xmlRngVErrMemory(ctxt, "allocating states\n");
1312 ret->nbAttrs = 0;
1313 return (ret);
1314 }
1315 } else if (ret->maxAttrs < state->nbAttrs) {
1316 xmlAttrPtr *tmp;
1317
1318 tmp = (xmlAttrPtr *) xmlRealloc(ret->attrs, state->maxAttrs *
1319 sizeof(xmlAttrPtr));
1320 if (tmp == NULL) {
1321 xmlRngVErrMemory(ctxt, "allocating states\n");
1322 ret->nbAttrs = 0;
1323 return (ret);
1324 }
1325 ret->maxAttrs = state->maxAttrs;
1326 ret->attrs = tmp;
1327 }
1328 memcpy(ret->attrs, state->attrs,
1329 state->nbAttrs * sizeof(xmlAttrPtr));
1330 }
1331 return (ret);
1332 }
1333
1334 /**
1335 * xmlRelaxNGEqualValidState:
1336 * @ctxt: a Relax-NG validation context
1337 * @state1: a validation state
1338 * @state2: a validation state
1339 *
1340 * Compare the validation states for equality
1341 *
1342 * Returns 1 if equald, 0 otherwise
1343 */
1344 static int
xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlRelaxNGValidStatePtr state1,xmlRelaxNGValidStatePtr state2)1345 xmlRelaxNGEqualValidState(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,
1346 xmlRelaxNGValidStatePtr state1,
1347 xmlRelaxNGValidStatePtr state2)
1348 {
1349 int i;
1350
1351 if ((state1 == NULL) || (state2 == NULL))
1352 return (0);
1353 if (state1 == state2)
1354 return (1);
1355 if (state1->node != state2->node)
1356 return (0);
1357 if (state1->seq != state2->seq)
1358 return (0);
1359 if (state1->nbAttrLeft != state2->nbAttrLeft)
1360 return (0);
1361 if (state1->nbAttrs != state2->nbAttrs)
1362 return (0);
1363 if (state1->endvalue != state2->endvalue)
1364 return (0);
1365 if ((state1->value != state2->value) &&
1366 (!xmlStrEqual(state1->value, state2->value)))
1367 return (0);
1368 for (i = 0; i < state1->nbAttrs; i++) {
1369 if (state1->attrs[i] != state2->attrs[i])
1370 return (0);
1371 }
1372 return (1);
1373 }
1374
1375 /**
1376 * xmlRelaxNGFreeValidState:
1377 * @state: a validation state structure
1378 *
1379 * Deallocate a RelaxNG validation state structure.
1380 */
1381 static void
xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidStatePtr state)1382 xmlRelaxNGFreeValidState(xmlRelaxNGValidCtxtPtr ctxt,
1383 xmlRelaxNGValidStatePtr state)
1384 {
1385 if (state == NULL)
1386 return;
1387
1388 if ((ctxt != NULL) && (ctxt->freeState == NULL)) {
1389 ctxt->freeState = xmlRelaxNGNewStates(ctxt, 40);
1390 }
1391 if ((ctxt == NULL) || (ctxt->freeState == NULL)) {
1392 if (state->attrs != NULL)
1393 xmlFree(state->attrs);
1394 xmlFree(state);
1395 } else {
1396 xmlRelaxNGAddStatesUniq(ctxt, ctxt->freeState, state);
1397 }
1398 }
1399
1400 /************************************************************************
1401 * *
1402 * Semi internal functions *
1403 * *
1404 ************************************************************************/
1405
1406 /**
1407 * xmlRelaxParserSetFlag:
1408 * @ctxt: a RelaxNG parser context
1409 * @flags: a set of flags values
1410 *
1411 * Semi private function used to pass informations to a parser context
1412 * which are a combination of xmlRelaxNGParserFlag .
1413 *
1414 * Returns 0 if success and -1 in case of error
1415 */
1416 int
xmlRelaxParserSetFlag(xmlRelaxNGParserCtxtPtr ctxt,int flags)1417 xmlRelaxParserSetFlag(xmlRelaxNGParserCtxtPtr ctxt, int flags)
1418 {
1419 if (ctxt == NULL) return(-1);
1420 if (flags & XML_RELAXNGP_FREE_DOC) {
1421 ctxt->crng |= XML_RELAXNGP_FREE_DOC;
1422 flags -= XML_RELAXNGP_FREE_DOC;
1423 }
1424 if (flags & XML_RELAXNGP_CRNG) {
1425 ctxt->crng |= XML_RELAXNGP_CRNG;
1426 flags -= XML_RELAXNGP_CRNG;
1427 }
1428 if (flags != 0) return(-1);
1429 return(0);
1430 }
1431
1432 /************************************************************************
1433 * *
1434 * Document functions *
1435 * *
1436 ************************************************************************/
1437 static xmlDocPtr xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt,
1438 xmlDocPtr doc);
1439
1440 /**
1441 * xmlRelaxNGIncludePush:
1442 * @ctxt: the parser context
1443 * @value: the element doc
1444 *
1445 * Pushes a new include on top of the include stack
1446 *
1447 * Returns 0 in case of error, the index in the stack otherwise
1448 */
1449 static int
xmlRelaxNGIncludePush(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGIncludePtr value)1450 xmlRelaxNGIncludePush(xmlRelaxNGParserCtxtPtr ctxt,
1451 xmlRelaxNGIncludePtr value)
1452 {
1453 if (ctxt->incTab == NULL) {
1454 ctxt->incMax = 4;
1455 ctxt->incNr = 0;
1456 ctxt->incTab =
1457 (xmlRelaxNGIncludePtr *) xmlMalloc(ctxt->incMax *
1458 sizeof(ctxt->incTab[0]));
1459 if (ctxt->incTab == NULL) {
1460 xmlRngPErrMemory(ctxt, "allocating include\n");
1461 return (0);
1462 }
1463 }
1464 if (ctxt->incNr >= ctxt->incMax) {
1465 ctxt->incMax *= 2;
1466 ctxt->incTab =
1467 (xmlRelaxNGIncludePtr *) xmlRealloc(ctxt->incTab,
1468 ctxt->incMax *
1469 sizeof(ctxt->incTab[0]));
1470 if (ctxt->incTab == NULL) {
1471 xmlRngPErrMemory(ctxt, "allocating include\n");
1472 return (0);
1473 }
1474 }
1475 ctxt->incTab[ctxt->incNr] = value;
1476 ctxt->inc = value;
1477 return (ctxt->incNr++);
1478 }
1479
1480 /**
1481 * xmlRelaxNGIncludePop:
1482 * @ctxt: the parser context
1483 *
1484 * Pops the top include from the include stack
1485 *
1486 * Returns the include just removed
1487 */
1488 static xmlRelaxNGIncludePtr
xmlRelaxNGIncludePop(xmlRelaxNGParserCtxtPtr ctxt)1489 xmlRelaxNGIncludePop(xmlRelaxNGParserCtxtPtr ctxt)
1490 {
1491 xmlRelaxNGIncludePtr ret;
1492
1493 if (ctxt->incNr <= 0)
1494 return (NULL);
1495 ctxt->incNr--;
1496 if (ctxt->incNr > 0)
1497 ctxt->inc = ctxt->incTab[ctxt->incNr - 1];
1498 else
1499 ctxt->inc = NULL;
1500 ret = ctxt->incTab[ctxt->incNr];
1501 ctxt->incTab[ctxt->incNr] = NULL;
1502 return (ret);
1503 }
1504
1505 /**
1506 * xmlRelaxNGRemoveRedefine:
1507 * @ctxt: the parser context
1508 * @URL: the normalized URL
1509 * @target: the included target
1510 * @name: the define name to eliminate
1511 *
1512 * Applies the elimination algorithm of 4.7
1513 *
1514 * Returns 0 in case of error, 1 in case of success.
1515 */
1516 static int
xmlRelaxNGRemoveRedefine(xmlRelaxNGParserCtxtPtr ctxt,const xmlChar * URL ATTRIBUTE_UNUSED,xmlNodePtr target,const xmlChar * name)1517 xmlRelaxNGRemoveRedefine(xmlRelaxNGParserCtxtPtr ctxt,
1518 const xmlChar * URL ATTRIBUTE_UNUSED,
1519 xmlNodePtr target, const xmlChar * name)
1520 {
1521 int found = 0;
1522 xmlNodePtr tmp, tmp2;
1523 xmlChar *name2;
1524
1525 #ifdef DEBUG_INCLUDE
1526 if (name == NULL)
1527 xmlGenericError(xmlGenericErrorContext,
1528 "Elimination of <include> start from %s\n", URL);
1529 else
1530 xmlGenericError(xmlGenericErrorContext,
1531 "Elimination of <include> define %s from %s\n",
1532 name, URL);
1533 #endif
1534 tmp = target;
1535 while (tmp != NULL) {
1536 tmp2 = tmp->next;
1537 if ((name == NULL) && (IS_RELAXNG(tmp, "start"))) {
1538 found = 1;
1539 xmlUnlinkNode(tmp);
1540 xmlFreeNode(tmp);
1541 } else if ((name != NULL) && (IS_RELAXNG(tmp, "define"))) {
1542 name2 = xmlGetProp(tmp, BAD_CAST "name");
1543 xmlRelaxNGNormExtSpace(name2);
1544 if (name2 != NULL) {
1545 if (xmlStrEqual(name, name2)) {
1546 found = 1;
1547 xmlUnlinkNode(tmp);
1548 xmlFreeNode(tmp);
1549 }
1550 xmlFree(name2);
1551 }
1552 } else if (IS_RELAXNG(tmp, "include")) {
1553 xmlChar *href = NULL;
1554 xmlRelaxNGDocumentPtr inc = tmp->psvi;
1555
1556 if ((inc != NULL) && (inc->doc != NULL) &&
1557 (inc->doc->children != NULL)) {
1558
1559 if (xmlStrEqual
1560 (inc->doc->children->name, BAD_CAST "grammar")) {
1561 #ifdef DEBUG_INCLUDE
1562 href = xmlGetProp(tmp, BAD_CAST "href");
1563 #endif
1564 if (xmlRelaxNGRemoveRedefine(ctxt, href,
1565 xmlDocGetRootElement(inc->doc)->children,
1566 name) == 1) {
1567 found = 1;
1568 }
1569 #ifdef DEBUG_INCLUDE
1570 if (href != NULL)
1571 xmlFree(href);
1572 #endif
1573 }
1574 }
1575 }
1576 tmp = tmp2;
1577 }
1578 return (found);
1579 }
1580
1581 /**
1582 * xmlRelaxNGLoadInclude:
1583 * @ctxt: the parser context
1584 * @URL: the normalized URL
1585 * @node: the include node.
1586 * @ns: the namespace passed from the context.
1587 *
1588 * First lookup if the document is already loaded into the parser context,
1589 * check against recursion. If not found the resource is loaded and
1590 * the content is preprocessed before being returned back to the caller.
1591 *
1592 * Returns the xmlRelaxNGIncludePtr or NULL in case of error
1593 */
1594 static xmlRelaxNGIncludePtr
xmlRelaxNGLoadInclude(xmlRelaxNGParserCtxtPtr ctxt,const xmlChar * URL,xmlNodePtr node,const xmlChar * ns)1595 xmlRelaxNGLoadInclude(xmlRelaxNGParserCtxtPtr ctxt, const xmlChar * URL,
1596 xmlNodePtr node, const xmlChar * ns)
1597 {
1598 xmlRelaxNGIncludePtr ret = NULL;
1599 xmlDocPtr doc;
1600 int i;
1601 xmlNodePtr root, cur;
1602
1603 #ifdef DEBUG_INCLUDE
1604 xmlGenericError(xmlGenericErrorContext,
1605 "xmlRelaxNGLoadInclude(%s)\n", URL);
1606 #endif
1607
1608 /*
1609 * check against recursion in the stack
1610 */
1611 for (i = 0; i < ctxt->incNr; i++) {
1612 if (xmlStrEqual(ctxt->incTab[i]->href, URL)) {
1613 xmlRngPErr(ctxt, NULL, XML_RNGP_INCLUDE_RECURSE,
1614 "Detected an Include recursion for %s\n", URL,
1615 NULL);
1616 return (NULL);
1617 }
1618 }
1619
1620 /*
1621 * load the document
1622 */
1623 doc = xmlReadFile((const char *) URL,NULL,0);
1624 if (doc == NULL) {
1625 xmlRngPErr(ctxt, node, XML_RNGP_PARSE_ERROR,
1626 "xmlRelaxNG: could not load %s\n", URL, NULL);
1627 return (NULL);
1628 }
1629 #ifdef DEBUG_INCLUDE
1630 xmlGenericError(xmlGenericErrorContext, "Parsed %s Okay\n", URL);
1631 #endif
1632
1633 /*
1634 * Allocate the document structures and register it first.
1635 */
1636 ret = (xmlRelaxNGIncludePtr) xmlMalloc(sizeof(xmlRelaxNGInclude));
1637 if (ret == NULL) {
1638 xmlRngPErrMemory(ctxt, "allocating include\n");
1639 xmlFreeDoc(doc);
1640 return (NULL);
1641 }
1642 memset(ret, 0, sizeof(xmlRelaxNGInclude));
1643 ret->doc = doc;
1644 ret->href = xmlStrdup(URL);
1645 ret->next = ctxt->includes;
1646 ctxt->includes = ret;
1647
1648 /*
1649 * transmit the ns if needed
1650 */
1651 if (ns != NULL) {
1652 root = xmlDocGetRootElement(doc);
1653 if (root != NULL) {
1654 if (xmlHasProp(root, BAD_CAST "ns") == NULL) {
1655 xmlSetProp(root, BAD_CAST "ns", ns);
1656 }
1657 }
1658 }
1659
1660 /*
1661 * push it on the stack
1662 */
1663 xmlRelaxNGIncludePush(ctxt, ret);
1664
1665 /*
1666 * Some preprocessing of the document content, this include recursing
1667 * in the include stack.
1668 */
1669 #ifdef DEBUG_INCLUDE
1670 xmlGenericError(xmlGenericErrorContext, "cleanup of %s\n", URL);
1671 #endif
1672
1673 doc = xmlRelaxNGCleanupDoc(ctxt, doc);
1674 if (doc == NULL) {
1675 ctxt->inc = NULL;
1676 return (NULL);
1677 }
1678
1679 /*
1680 * Pop up the include from the stack
1681 */
1682 xmlRelaxNGIncludePop(ctxt);
1683
1684 #ifdef DEBUG_INCLUDE
1685 xmlGenericError(xmlGenericErrorContext, "Checking of %s\n", URL);
1686 #endif
1687 /*
1688 * Check that the top element is a grammar
1689 */
1690 root = xmlDocGetRootElement(doc);
1691 if (root == NULL) {
1692 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY,
1693 "xmlRelaxNG: included document is empty %s\n", URL,
1694 NULL);
1695 return (NULL);
1696 }
1697 if (!IS_RELAXNG(root, "grammar")) {
1698 xmlRngPErr(ctxt, node, XML_RNGP_GRAMMAR_MISSING,
1699 "xmlRelaxNG: included document %s root is not a grammar\n",
1700 URL, NULL);
1701 return (NULL);
1702 }
1703
1704 /*
1705 * Elimination of redefined rules in the include.
1706 */
1707 cur = node->children;
1708 while (cur != NULL) {
1709 if (IS_RELAXNG(cur, "start")) {
1710 int found = 0;
1711
1712 found =
1713 xmlRelaxNGRemoveRedefine(ctxt, URL, root->children, NULL);
1714 if (!found) {
1715 xmlRngPErr(ctxt, node, XML_RNGP_START_MISSING,
1716 "xmlRelaxNG: include %s has a start but not the included grammar\n",
1717 URL, NULL);
1718 }
1719 } else if (IS_RELAXNG(cur, "define")) {
1720 xmlChar *name;
1721
1722 name = xmlGetProp(cur, BAD_CAST "name");
1723 if (name == NULL) {
1724 xmlRngPErr(ctxt, node, XML_RNGP_NAME_MISSING,
1725 "xmlRelaxNG: include %s has define without name\n",
1726 URL, NULL);
1727 } else {
1728 int found;
1729
1730 xmlRelaxNGNormExtSpace(name);
1731 found = xmlRelaxNGRemoveRedefine(ctxt, URL,
1732 root->children, name);
1733 if (!found) {
1734 xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_MISSING,
1735 "xmlRelaxNG: include %s has a define %s but not the included grammar\n",
1736 URL, name);
1737 }
1738 xmlFree(name);
1739 }
1740 }
1741 cur = cur->next;
1742 }
1743
1744
1745 return (ret);
1746 }
1747
1748 /**
1749 * xmlRelaxNGValidErrorPush:
1750 * @ctxt: the validation context
1751 * @err: the error code
1752 * @arg1: the first string argument
1753 * @arg2: the second string argument
1754 * @dup: arg need to be duplicated
1755 *
1756 * Pushes a new error on top of the error stack
1757 *
1758 * Returns 0 in case of error, the index in the stack otherwise
1759 */
1760 static int
xmlRelaxNGValidErrorPush(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidErr err,const xmlChar * arg1,const xmlChar * arg2,int dup)1761 xmlRelaxNGValidErrorPush(xmlRelaxNGValidCtxtPtr ctxt,
1762 xmlRelaxNGValidErr err, const xmlChar * arg1,
1763 const xmlChar * arg2, int dup)
1764 {
1765 xmlRelaxNGValidErrorPtr cur;
1766
1767 #ifdef DEBUG_ERROR
1768 xmlGenericError(xmlGenericErrorContext,
1769 "Pushing error %d at %d on stack\n", err, ctxt->errNr);
1770 #endif
1771 if (ctxt->errTab == NULL) {
1772 ctxt->errMax = 8;
1773 ctxt->errNr = 0;
1774 ctxt->errTab =
1775 (xmlRelaxNGValidErrorPtr) xmlMalloc(ctxt->errMax *
1776 sizeof
1777 (xmlRelaxNGValidError));
1778 if (ctxt->errTab == NULL) {
1779 xmlRngVErrMemory(ctxt, "pushing error\n");
1780 return (0);
1781 }
1782 ctxt->err = NULL;
1783 }
1784 if (ctxt->errNr >= ctxt->errMax) {
1785 ctxt->errMax *= 2;
1786 ctxt->errTab =
1787 (xmlRelaxNGValidErrorPtr) xmlRealloc(ctxt->errTab,
1788 ctxt->errMax *
1789 sizeof
1790 (xmlRelaxNGValidError));
1791 if (ctxt->errTab == NULL) {
1792 xmlRngVErrMemory(ctxt, "pushing error\n");
1793 return (0);
1794 }
1795 ctxt->err = &ctxt->errTab[ctxt->errNr - 1];
1796 }
1797 if ((ctxt->err != NULL) && (ctxt->state != NULL) &&
1798 (ctxt->err->node == ctxt->state->node) && (ctxt->err->err == err))
1799 return (ctxt->errNr);
1800 cur = &ctxt->errTab[ctxt->errNr];
1801 cur->err = err;
1802 if (dup) {
1803 cur->arg1 = xmlStrdup(arg1);
1804 cur->arg2 = xmlStrdup(arg2);
1805 cur->flags = ERROR_IS_DUP;
1806 } else {
1807 cur->arg1 = arg1;
1808 cur->arg2 = arg2;
1809 cur->flags = 0;
1810 }
1811 if (ctxt->state != NULL) {
1812 cur->node = ctxt->state->node;
1813 cur->seq = ctxt->state->seq;
1814 } else {
1815 cur->node = NULL;
1816 cur->seq = NULL;
1817 }
1818 ctxt->err = cur;
1819 return (ctxt->errNr++);
1820 }
1821
1822 /**
1823 * xmlRelaxNGValidErrorPop:
1824 * @ctxt: the validation context
1825 *
1826 * Pops the top error from the error stack
1827 */
1828 static void
xmlRelaxNGValidErrorPop(xmlRelaxNGValidCtxtPtr ctxt)1829 xmlRelaxNGValidErrorPop(xmlRelaxNGValidCtxtPtr ctxt)
1830 {
1831 xmlRelaxNGValidErrorPtr cur;
1832
1833 if (ctxt->errNr <= 0) {
1834 ctxt->err = NULL;
1835 return;
1836 }
1837 ctxt->errNr--;
1838 if (ctxt->errNr > 0)
1839 ctxt->err = &ctxt->errTab[ctxt->errNr - 1];
1840 else
1841 ctxt->err = NULL;
1842 cur = &ctxt->errTab[ctxt->errNr];
1843 if (cur->flags & ERROR_IS_DUP) {
1844 if (cur->arg1 != NULL)
1845 xmlFree((xmlChar *) cur->arg1);
1846 cur->arg1 = NULL;
1847 if (cur->arg2 != NULL)
1848 xmlFree((xmlChar *) cur->arg2);
1849 cur->arg2 = NULL;
1850 cur->flags = 0;
1851 }
1852 }
1853
1854 /**
1855 * xmlRelaxNGDocumentPush:
1856 * @ctxt: the parser context
1857 * @value: the element doc
1858 *
1859 * Pushes a new doc on top of the doc stack
1860 *
1861 * Returns 0 in case of error, the index in the stack otherwise
1862 */
1863 static int
xmlRelaxNGDocumentPush(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDocumentPtr value)1864 xmlRelaxNGDocumentPush(xmlRelaxNGParserCtxtPtr ctxt,
1865 xmlRelaxNGDocumentPtr value)
1866 {
1867 if (ctxt->docTab == NULL) {
1868 ctxt->docMax = 4;
1869 ctxt->docNr = 0;
1870 ctxt->docTab =
1871 (xmlRelaxNGDocumentPtr *) xmlMalloc(ctxt->docMax *
1872 sizeof(ctxt->docTab[0]));
1873 if (ctxt->docTab == NULL) {
1874 xmlRngPErrMemory(ctxt, "adding document\n");
1875 return (0);
1876 }
1877 }
1878 if (ctxt->docNr >= ctxt->docMax) {
1879 ctxt->docMax *= 2;
1880 ctxt->docTab =
1881 (xmlRelaxNGDocumentPtr *) xmlRealloc(ctxt->docTab,
1882 ctxt->docMax *
1883 sizeof(ctxt->docTab[0]));
1884 if (ctxt->docTab == NULL) {
1885 xmlRngPErrMemory(ctxt, "adding document\n");
1886 return (0);
1887 }
1888 }
1889 ctxt->docTab[ctxt->docNr] = value;
1890 ctxt->doc = value;
1891 return (ctxt->docNr++);
1892 }
1893
1894 /**
1895 * xmlRelaxNGDocumentPop:
1896 * @ctxt: the parser context
1897 *
1898 * Pops the top doc from the doc stack
1899 *
1900 * Returns the doc just removed
1901 */
1902 static xmlRelaxNGDocumentPtr
xmlRelaxNGDocumentPop(xmlRelaxNGParserCtxtPtr ctxt)1903 xmlRelaxNGDocumentPop(xmlRelaxNGParserCtxtPtr ctxt)
1904 {
1905 xmlRelaxNGDocumentPtr ret;
1906
1907 if (ctxt->docNr <= 0)
1908 return (NULL);
1909 ctxt->docNr--;
1910 if (ctxt->docNr > 0)
1911 ctxt->doc = ctxt->docTab[ctxt->docNr - 1];
1912 else
1913 ctxt->doc = NULL;
1914 ret = ctxt->docTab[ctxt->docNr];
1915 ctxt->docTab[ctxt->docNr] = NULL;
1916 return (ret);
1917 }
1918
1919 /**
1920 * xmlRelaxNGLoadExternalRef:
1921 * @ctxt: the parser context
1922 * @URL: the normalized URL
1923 * @ns: the inherited ns if any
1924 *
1925 * First lookup if the document is already loaded into the parser context,
1926 * check against recursion. If not found the resource is loaded and
1927 * the content is preprocessed before being returned back to the caller.
1928 *
1929 * Returns the xmlRelaxNGDocumentPtr or NULL in case of error
1930 */
1931 static xmlRelaxNGDocumentPtr
xmlRelaxNGLoadExternalRef(xmlRelaxNGParserCtxtPtr ctxt,const xmlChar * URL,const xmlChar * ns)1932 xmlRelaxNGLoadExternalRef(xmlRelaxNGParserCtxtPtr ctxt,
1933 const xmlChar * URL, const xmlChar * ns)
1934 {
1935 xmlRelaxNGDocumentPtr ret = NULL;
1936 xmlDocPtr doc;
1937 xmlNodePtr root;
1938 int i;
1939
1940 /*
1941 * check against recursion in the stack
1942 */
1943 for (i = 0; i < ctxt->docNr; i++) {
1944 if (xmlStrEqual(ctxt->docTab[i]->href, URL)) {
1945 xmlRngPErr(ctxt, NULL, XML_RNGP_EXTERNALREF_RECURSE,
1946 "Detected an externalRef recursion for %s\n", URL,
1947 NULL);
1948 return (NULL);
1949 }
1950 }
1951
1952 /*
1953 * load the document
1954 */
1955 doc = xmlReadFile((const char *) URL,NULL,0);
1956 if (doc == NULL) {
1957 xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
1958 "xmlRelaxNG: could not load %s\n", URL, NULL);
1959 return (NULL);
1960 }
1961
1962 /*
1963 * Allocate the document structures and register it first.
1964 */
1965 ret = (xmlRelaxNGDocumentPtr) xmlMalloc(sizeof(xmlRelaxNGDocument));
1966 if (ret == NULL) {
1967 xmlRngPErr(ctxt, (xmlNodePtr) doc, XML_ERR_NO_MEMORY,
1968 "xmlRelaxNG: allocate memory for doc %s\n", URL, NULL);
1969 xmlFreeDoc(doc);
1970 return (NULL);
1971 }
1972 memset(ret, 0, sizeof(xmlRelaxNGDocument));
1973 ret->doc = doc;
1974 ret->href = xmlStrdup(URL);
1975 ret->next = ctxt->documents;
1976 ret->externalRef = 1;
1977 ctxt->documents = ret;
1978
1979 /*
1980 * transmit the ns if needed
1981 */
1982 if (ns != NULL) {
1983 root = xmlDocGetRootElement(doc);
1984 if (root != NULL) {
1985 if (xmlHasProp(root, BAD_CAST "ns") == NULL) {
1986 xmlSetProp(root, BAD_CAST "ns", ns);
1987 }
1988 }
1989 }
1990
1991 /*
1992 * push it on the stack and register it in the hash table
1993 */
1994 xmlRelaxNGDocumentPush(ctxt, ret);
1995
1996 /*
1997 * Some preprocessing of the document content
1998 */
1999 doc = xmlRelaxNGCleanupDoc(ctxt, doc);
2000 if (doc == NULL) {
2001 ctxt->doc = NULL;
2002 return (NULL);
2003 }
2004
2005 xmlRelaxNGDocumentPop(ctxt);
2006
2007 return (ret);
2008 }
2009
2010 /************************************************************************
2011 * *
2012 * Error functions *
2013 * *
2014 ************************************************************************/
2015
2016 #define VALID_ERR(a) xmlRelaxNGAddValidError(ctxt, a, NULL, NULL, 0);
2017 #define VALID_ERR2(a, b) xmlRelaxNGAddValidError(ctxt, a, b, NULL, 0);
2018 #define VALID_ERR3(a, b, c) xmlRelaxNGAddValidError(ctxt, a, b, c, 0);
2019 #define VALID_ERR2P(a, b) xmlRelaxNGAddValidError(ctxt, a, b, NULL, 1);
2020 #define VALID_ERR3P(a, b, c) xmlRelaxNGAddValidError(ctxt, a, b, c, 1);
2021
2022 static const char *
xmlRelaxNGDefName(xmlRelaxNGDefinePtr def)2023 xmlRelaxNGDefName(xmlRelaxNGDefinePtr def)
2024 {
2025 if (def == NULL)
2026 return ("none");
2027 switch (def->type) {
2028 case XML_RELAXNG_EMPTY:
2029 return ("empty");
2030 case XML_RELAXNG_NOT_ALLOWED:
2031 return ("notAllowed");
2032 case XML_RELAXNG_EXCEPT:
2033 return ("except");
2034 case XML_RELAXNG_TEXT:
2035 return ("text");
2036 case XML_RELAXNG_ELEMENT:
2037 return ("element");
2038 case XML_RELAXNG_DATATYPE:
2039 return ("datatype");
2040 case XML_RELAXNG_VALUE:
2041 return ("value");
2042 case XML_RELAXNG_LIST:
2043 return ("list");
2044 case XML_RELAXNG_ATTRIBUTE:
2045 return ("attribute");
2046 case XML_RELAXNG_DEF:
2047 return ("def");
2048 case XML_RELAXNG_REF:
2049 return ("ref");
2050 case XML_RELAXNG_EXTERNALREF:
2051 return ("externalRef");
2052 case XML_RELAXNG_PARENTREF:
2053 return ("parentRef");
2054 case XML_RELAXNG_OPTIONAL:
2055 return ("optional");
2056 case XML_RELAXNG_ZEROORMORE:
2057 return ("zeroOrMore");
2058 case XML_RELAXNG_ONEORMORE:
2059 return ("oneOrMore");
2060 case XML_RELAXNG_CHOICE:
2061 return ("choice");
2062 case XML_RELAXNG_GROUP:
2063 return ("group");
2064 case XML_RELAXNG_INTERLEAVE:
2065 return ("interleave");
2066 case XML_RELAXNG_START:
2067 return ("start");
2068 case XML_RELAXNG_NOOP:
2069 return ("noop");
2070 case XML_RELAXNG_PARAM:
2071 return ("param");
2072 }
2073 return ("unknown");
2074 }
2075
2076 /**
2077 * xmlRelaxNGGetErrorString:
2078 * @err: the error code
2079 * @arg1: the first string argument
2080 * @arg2: the second string argument
2081 *
2082 * computes a formatted error string for the given error code and args
2083 *
2084 * Returns the error string, it must be deallocated by the caller
2085 */
2086 static xmlChar *
xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err,const xmlChar * arg1,const xmlChar * arg2)2087 xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
2088 const xmlChar * arg2)
2089 {
2090 char msg[1000];
2091
2092 if (arg1 == NULL)
2093 arg1 = BAD_CAST "";
2094 if (arg2 == NULL)
2095 arg2 = BAD_CAST "";
2096
2097 msg[0] = 0;
2098 switch (err) {
2099 case XML_RELAXNG_OK:
2100 return (NULL);
2101 case XML_RELAXNG_ERR_MEMORY:
2102 return (xmlCharStrdup("out of memory\n"));
2103 case XML_RELAXNG_ERR_TYPE:
2104 snprintf(msg, 1000, "failed to validate type %s\n", arg1);
2105 break;
2106 case XML_RELAXNG_ERR_TYPEVAL:
2107 snprintf(msg, 1000, "Type %s doesn't allow value '%s'\n", arg1,
2108 arg2);
2109 break;
2110 case XML_RELAXNG_ERR_DUPID:
2111 snprintf(msg, 1000, "ID %s redefined\n", arg1);
2112 break;
2113 case XML_RELAXNG_ERR_TYPECMP:
2114 snprintf(msg, 1000, "failed to compare type %s\n", arg1);
2115 break;
2116 case XML_RELAXNG_ERR_NOSTATE:
2117 return (xmlCharStrdup("Internal error: no state\n"));
2118 case XML_RELAXNG_ERR_NODEFINE:
2119 return (xmlCharStrdup("Internal error: no define\n"));
2120 case XML_RELAXNG_ERR_INTERNAL:
2121 snprintf(msg, 1000, "Internal error: %s\n", arg1);
2122 break;
2123 case XML_RELAXNG_ERR_LISTEXTRA:
2124 snprintf(msg, 1000, "Extra data in list: %s\n", arg1);
2125 break;
2126 case XML_RELAXNG_ERR_INTERNODATA:
2127 return (xmlCharStrdup
2128 ("Internal: interleave block has no data\n"));
2129 case XML_RELAXNG_ERR_INTERSEQ:
2130 return (xmlCharStrdup("Invalid sequence in interleave\n"));
2131 case XML_RELAXNG_ERR_INTEREXTRA:
2132 snprintf(msg, 1000, "Extra element %s in interleave\n", arg1);
2133 break;
2134 case XML_RELAXNG_ERR_ELEMNAME:
2135 snprintf(msg, 1000, "Expecting element %s, got %s\n", arg1,
2136 arg2);
2137 break;
2138 case XML_RELAXNG_ERR_ELEMNONS:
2139 snprintf(msg, 1000, "Expecting a namespace for element %s\n",
2140 arg1);
2141 break;
2142 case XML_RELAXNG_ERR_ELEMWRONGNS:
2143 snprintf(msg, 1000,
2144 "Element %s has wrong namespace: expecting %s\n", arg1,
2145 arg2);
2146 break;
2147 case XML_RELAXNG_ERR_ELEMWRONG:
2148 snprintf(msg, 1000, "Did not expect element %s there\n", arg1);
2149 break;
2150 case XML_RELAXNG_ERR_TEXTWRONG:
2151 snprintf(msg, 1000,
2152 "Did not expect text in element %s content\n", arg1);
2153 break;
2154 case XML_RELAXNG_ERR_ELEMEXTRANS:
2155 snprintf(msg, 1000, "Expecting no namespace for element %s\n",
2156 arg1);
2157 break;
2158 case XML_RELAXNG_ERR_ELEMNOTEMPTY:
2159 snprintf(msg, 1000, "Expecting element %s to be empty\n", arg1);
2160 break;
2161 case XML_RELAXNG_ERR_NOELEM:
2162 snprintf(msg, 1000, "Expecting an element %s, got nothing\n",
2163 arg1);
2164 break;
2165 case XML_RELAXNG_ERR_NOTELEM:
2166 return (xmlCharStrdup("Expecting an element got text\n"));
2167 case XML_RELAXNG_ERR_ATTRVALID:
2168 snprintf(msg, 1000, "Element %s failed to validate attributes\n",
2169 arg1);
2170 break;
2171 case XML_RELAXNG_ERR_CONTENTVALID:
2172 snprintf(msg, 1000, "Element %s failed to validate content\n",
2173 arg1);
2174 break;
2175 case XML_RELAXNG_ERR_EXTRACONTENT:
2176 snprintf(msg, 1000, "Element %s has extra content: %s\n",
2177 arg1, arg2);
2178 break;
2179 case XML_RELAXNG_ERR_INVALIDATTR:
2180 snprintf(msg, 1000, "Invalid attribute %s for element %s\n",
2181 arg1, arg2);
2182 break;
2183 case XML_RELAXNG_ERR_LACKDATA:
2184 snprintf(msg, 1000, "Datatype element %s contains no data\n",
2185 arg1);
2186 break;
2187 case XML_RELAXNG_ERR_DATAELEM:
2188 snprintf(msg, 1000, "Datatype element %s has child elements\n",
2189 arg1);
2190 break;
2191 case XML_RELAXNG_ERR_VALELEM:
2192 snprintf(msg, 1000, "Value element %s has child elements\n",
2193 arg1);
2194 break;
2195 case XML_RELAXNG_ERR_LISTELEM:
2196 snprintf(msg, 1000, "List element %s has child elements\n",
2197 arg1);
2198 break;
2199 case XML_RELAXNG_ERR_DATATYPE:
2200 snprintf(msg, 1000, "Error validating datatype %s\n", arg1);
2201 break;
2202 case XML_RELAXNG_ERR_VALUE:
2203 snprintf(msg, 1000, "Error validating value %s\n", arg1);
2204 break;
2205 case XML_RELAXNG_ERR_LIST:
2206 return (xmlCharStrdup("Error validating list\n"));
2207 case XML_RELAXNG_ERR_NOGRAMMAR:
2208 return (xmlCharStrdup("No top grammar defined\n"));
2209 case XML_RELAXNG_ERR_EXTRADATA:
2210 return (xmlCharStrdup("Extra data in the document\n"));
2211 default:
2212 return (xmlCharStrdup("Unknown error !\n"));
2213 }
2214 if (msg[0] == 0) {
2215 snprintf(msg, 1000, "Unknown error code %d\n", err);
2216 }
2217 msg[1000 - 1] = 0;
2218 return (xmlStrdup((xmlChar *) msg));
2219 }
2220
2221 /**
2222 * xmlRelaxNGShowValidError:
2223 * @ctxt: the validation context
2224 * @err: the error number
2225 * @node: the node
2226 * @child: the node child generating the problem.
2227 * @arg1: the first argument
2228 * @arg2: the second argument
2229 *
2230 * Show a validation error.
2231 */
2232 static void
xmlRelaxNGShowValidError(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidErr err,xmlNodePtr node,xmlNodePtr child,const xmlChar * arg1,const xmlChar * arg2)2233 xmlRelaxNGShowValidError(xmlRelaxNGValidCtxtPtr ctxt,
2234 xmlRelaxNGValidErr err, xmlNodePtr node,
2235 xmlNodePtr child, const xmlChar * arg1,
2236 const xmlChar * arg2)
2237 {
2238 xmlChar *msg;
2239
2240 if (ctxt->flags & FLAGS_NOERROR)
2241 return;
2242
2243 #ifdef DEBUG_ERROR
2244 xmlGenericError(xmlGenericErrorContext, "Show error %d\n", err);
2245 #endif
2246 msg = xmlRelaxNGGetErrorString(err, arg1, arg2);
2247 if (msg == NULL)
2248 return;
2249
2250 if (ctxt->errNo == XML_RELAXNG_OK)
2251 ctxt->errNo = err;
2252 xmlRngVErr(ctxt, (child == NULL ? node : child), err,
2253 (const char *) msg, arg1, arg2);
2254 xmlFree(msg);
2255 }
2256
2257 /**
2258 * xmlRelaxNGPopErrors:
2259 * @ctxt: the validation context
2260 * @level: the error level in the stack
2261 *
2262 * pop and discard all errors until the given level is reached
2263 */
2264 static void
xmlRelaxNGPopErrors(xmlRelaxNGValidCtxtPtr ctxt,int level)2265 xmlRelaxNGPopErrors(xmlRelaxNGValidCtxtPtr ctxt, int level)
2266 {
2267 int i;
2268 xmlRelaxNGValidErrorPtr err;
2269
2270 #ifdef DEBUG_ERROR
2271 xmlGenericError(xmlGenericErrorContext,
2272 "Pop errors till level %d\n", level);
2273 #endif
2274 for (i = level; i < ctxt->errNr; i++) {
2275 err = &ctxt->errTab[i];
2276 if (err->flags & ERROR_IS_DUP) {
2277 if (err->arg1 != NULL)
2278 xmlFree((xmlChar *) err->arg1);
2279 err->arg1 = NULL;
2280 if (err->arg2 != NULL)
2281 xmlFree((xmlChar *) err->arg2);
2282 err->arg2 = NULL;
2283 err->flags = 0;
2284 }
2285 }
2286 ctxt->errNr = level;
2287 if (ctxt->errNr <= 0)
2288 ctxt->err = NULL;
2289 }
2290
2291 /**
2292 * xmlRelaxNGDumpValidError:
2293 * @ctxt: the validation context
2294 *
2295 * Show all validation error over a given index.
2296 */
2297 static void
xmlRelaxNGDumpValidError(xmlRelaxNGValidCtxtPtr ctxt)2298 xmlRelaxNGDumpValidError(xmlRelaxNGValidCtxtPtr ctxt)
2299 {
2300 int i, j, k;
2301 xmlRelaxNGValidErrorPtr err, dup;
2302
2303 #ifdef DEBUG_ERROR
2304 xmlGenericError(xmlGenericErrorContext,
2305 "Dumping error stack %d errors\n", ctxt->errNr);
2306 #endif
2307 for (i = 0, k = 0; i < ctxt->errNr; i++) {
2308 err = &ctxt->errTab[i];
2309 if (k < MAX_ERROR) {
2310 for (j = 0; j < i; j++) {
2311 dup = &ctxt->errTab[j];
2312 if ((err->err == dup->err) && (err->node == dup->node) &&
2313 (xmlStrEqual(err->arg1, dup->arg1)) &&
2314 (xmlStrEqual(err->arg2, dup->arg2))) {
2315 goto skip;
2316 }
2317 }
2318 xmlRelaxNGShowValidError(ctxt, err->err, err->node, err->seq,
2319 err->arg1, err->arg2);
2320 k++;
2321 }
2322 skip:
2323 if (err->flags & ERROR_IS_DUP) {
2324 if (err->arg1 != NULL)
2325 xmlFree((xmlChar *) err->arg1);
2326 err->arg1 = NULL;
2327 if (err->arg2 != NULL)
2328 xmlFree((xmlChar *) err->arg2);
2329 err->arg2 = NULL;
2330 err->flags = 0;
2331 }
2332 }
2333 ctxt->errNr = 0;
2334 }
2335
2336 /**
2337 * xmlRelaxNGAddValidError:
2338 * @ctxt: the validation context
2339 * @err: the error number
2340 * @arg1: the first argument
2341 * @arg2: the second argument
2342 * @dup: need to dup the args
2343 *
2344 * Register a validation error, either generating it if it's sure
2345 * or stacking it for later handling if unsure.
2346 */
2347 static void
xmlRelaxNGAddValidError(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidErr err,const xmlChar * arg1,const xmlChar * arg2,int dup)2348 xmlRelaxNGAddValidError(xmlRelaxNGValidCtxtPtr ctxt,
2349 xmlRelaxNGValidErr err, const xmlChar * arg1,
2350 const xmlChar * arg2, int dup)
2351 {
2352 if (ctxt == NULL)
2353 return;
2354 if (ctxt->flags & FLAGS_NOERROR)
2355 return;
2356
2357 #ifdef DEBUG_ERROR
2358 xmlGenericError(xmlGenericErrorContext, "Adding error %d\n", err);
2359 #endif
2360 /*
2361 * generate the error directly
2362 */
2363 if (((ctxt->flags & FLAGS_IGNORABLE) == 0) ||
2364 (ctxt->flags & FLAGS_NEGATIVE)) {
2365 xmlNodePtr node, seq;
2366
2367 /*
2368 * Flush first any stacked error which might be the
2369 * real cause of the problem.
2370 */
2371 if (ctxt->errNr != 0)
2372 xmlRelaxNGDumpValidError(ctxt);
2373 if (ctxt->state != NULL) {
2374 node = ctxt->state->node;
2375 seq = ctxt->state->seq;
2376 } else {
2377 node = seq = NULL;
2378 }
2379 if ((node == NULL) && (seq == NULL)) {
2380 node = ctxt->pnode;
2381 }
2382 xmlRelaxNGShowValidError(ctxt, err, node, seq, arg1, arg2);
2383 }
2384 /*
2385 * Stack the error for later processing if needed
2386 */
2387 else {
2388 xmlRelaxNGValidErrorPush(ctxt, err, arg1, arg2, dup);
2389 }
2390 }
2391
2392
2393 /************************************************************************
2394 * *
2395 * Type library hooks *
2396 * *
2397 ************************************************************************/
2398 static xmlChar *xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt,
2399 const xmlChar * str);
2400
2401 /**
2402 * xmlRelaxNGSchemaTypeHave:
2403 * @data: data needed for the library
2404 * @type: the type name
2405 *
2406 * Check if the given type is provided by
2407 * the W3C XMLSchema Datatype library.
2408 *
2409 * Returns 1 if yes, 0 if no and -1 in case of error.
2410 */
2411 static int
xmlRelaxNGSchemaTypeHave(void * data ATTRIBUTE_UNUSED,const xmlChar * type)2412 xmlRelaxNGSchemaTypeHave(void *data ATTRIBUTE_UNUSED, const xmlChar * type)
2413 {
2414 xmlSchemaTypePtr typ;
2415
2416 if (type == NULL)
2417 return (-1);
2418 typ = xmlSchemaGetPredefinedType(type,
2419 BAD_CAST
2420 "http://www.w3.org/2001/XMLSchema");
2421 if (typ == NULL)
2422 return (0);
2423 return (1);
2424 }
2425
2426 /**
2427 * xmlRelaxNGSchemaTypeCheck:
2428 * @data: data needed for the library
2429 * @type: the type name
2430 * @value: the value to check
2431 * @node: the node
2432 *
2433 * Check if the given type and value are validated by
2434 * the W3C XMLSchema Datatype library.
2435 *
2436 * Returns 1 if yes, 0 if no and -1 in case of error.
2437 */
2438 static int
xmlRelaxNGSchemaTypeCheck(void * data ATTRIBUTE_UNUSED,const xmlChar * type,const xmlChar * value,void ** result,xmlNodePtr node)2439 xmlRelaxNGSchemaTypeCheck(void *data ATTRIBUTE_UNUSED,
2440 const xmlChar * type,
2441 const xmlChar * value,
2442 void **result, xmlNodePtr node)
2443 {
2444 xmlSchemaTypePtr typ;
2445 int ret;
2446
2447 if ((type == NULL) || (value == NULL))
2448 return (-1);
2449 typ = xmlSchemaGetPredefinedType(type,
2450 BAD_CAST
2451 "http://www.w3.org/2001/XMLSchema");
2452 if (typ == NULL)
2453 return (-1);
2454 ret = xmlSchemaValPredefTypeNode(typ, value,
2455 (xmlSchemaValPtr *) result, node);
2456 if (ret == 2) /* special ID error code */
2457 return (2);
2458 if (ret == 0)
2459 return (1);
2460 if (ret > 0)
2461 return (0);
2462 return (-1);
2463 }
2464
2465 /**
2466 * xmlRelaxNGSchemaFacetCheck:
2467 * @data: data needed for the library
2468 * @type: the type name
2469 * @facet: the facet name
2470 * @val: the facet value
2471 * @strval: the string value
2472 * @value: the value to check
2473 *
2474 * Function provided by a type library to check a value facet
2475 *
2476 * Returns 1 if yes, 0 if no and -1 in case of error.
2477 */
2478 static int
xmlRelaxNGSchemaFacetCheck(void * data ATTRIBUTE_UNUSED,const xmlChar * type,const xmlChar * facetname,const xmlChar * val,const xmlChar * strval,void * value)2479 xmlRelaxNGSchemaFacetCheck(void *data ATTRIBUTE_UNUSED,
2480 const xmlChar * type, const xmlChar * facetname,
2481 const xmlChar * val, const xmlChar * strval,
2482 void *value)
2483 {
2484 xmlSchemaFacetPtr facet;
2485 xmlSchemaTypePtr typ;
2486 int ret;
2487
2488 if ((type == NULL) || (strval == NULL))
2489 return (-1);
2490 typ = xmlSchemaGetPredefinedType(type,
2491 BAD_CAST
2492 "http://www.w3.org/2001/XMLSchema");
2493 if (typ == NULL)
2494 return (-1);
2495
2496 facet = xmlSchemaNewFacet();
2497 if (facet == NULL)
2498 return (-1);
2499
2500 if (xmlStrEqual(facetname, BAD_CAST "minInclusive")) {
2501 facet->type = XML_SCHEMA_FACET_MININCLUSIVE;
2502 } else if (xmlStrEqual(facetname, BAD_CAST "minExclusive")) {
2503 facet->type = XML_SCHEMA_FACET_MINEXCLUSIVE;
2504 } else if (xmlStrEqual(facetname, BAD_CAST "maxInclusive")) {
2505 facet->type = XML_SCHEMA_FACET_MAXINCLUSIVE;
2506 } else if (xmlStrEqual(facetname, BAD_CAST "maxExclusive")) {
2507 facet->type = XML_SCHEMA_FACET_MAXEXCLUSIVE;
2508 } else if (xmlStrEqual(facetname, BAD_CAST "totalDigits")) {
2509 facet->type = XML_SCHEMA_FACET_TOTALDIGITS;
2510 } else if (xmlStrEqual(facetname, BAD_CAST "fractionDigits")) {
2511 facet->type = XML_SCHEMA_FACET_FRACTIONDIGITS;
2512 } else if (xmlStrEqual(facetname, BAD_CAST "pattern")) {
2513 facet->type = XML_SCHEMA_FACET_PATTERN;
2514 } else if (xmlStrEqual(facetname, BAD_CAST "enumeration")) {
2515 facet->type = XML_SCHEMA_FACET_ENUMERATION;
2516 } else if (xmlStrEqual(facetname, BAD_CAST "whiteSpace")) {
2517 facet->type = XML_SCHEMA_FACET_WHITESPACE;
2518 } else if (xmlStrEqual(facetname, BAD_CAST "length")) {
2519 facet->type = XML_SCHEMA_FACET_LENGTH;
2520 } else if (xmlStrEqual(facetname, BAD_CAST "maxLength")) {
2521 facet->type = XML_SCHEMA_FACET_MAXLENGTH;
2522 } else if (xmlStrEqual(facetname, BAD_CAST "minLength")) {
2523 facet->type = XML_SCHEMA_FACET_MINLENGTH;
2524 } else {
2525 xmlSchemaFreeFacet(facet);
2526 return (-1);
2527 }
2528 facet->value = val;
2529 ret = xmlSchemaCheckFacet(facet, typ, NULL, type);
2530 if (ret != 0) {
2531 xmlSchemaFreeFacet(facet);
2532 return (-1);
2533 }
2534 ret = xmlSchemaValidateFacet(typ, facet, strval, value);
2535 xmlSchemaFreeFacet(facet);
2536 if (ret != 0)
2537 return (-1);
2538 return (0);
2539 }
2540
2541 /**
2542 * xmlRelaxNGSchemaFreeValue:
2543 * @data: data needed for the library
2544 * @value: the value to free
2545 *
2546 * Function provided by a type library to free a Schemas value
2547 *
2548 * Returns 1 if yes, 0 if no and -1 in case of error.
2549 */
2550 static void
xmlRelaxNGSchemaFreeValue(void * data ATTRIBUTE_UNUSED,void * value)2551 xmlRelaxNGSchemaFreeValue(void *data ATTRIBUTE_UNUSED, void *value)
2552 {
2553 xmlSchemaFreeValue(value);
2554 }
2555
2556 /**
2557 * xmlRelaxNGSchemaTypeCompare:
2558 * @data: data needed for the library
2559 * @type: the type name
2560 * @value1: the first value
2561 * @value2: the second value
2562 *
2563 * Compare two values for equality accordingly a type from the W3C XMLSchema
2564 * Datatype library.
2565 *
2566 * Returns 1 if equal, 0 if no and -1 in case of error.
2567 */
2568 static int
xmlRelaxNGSchemaTypeCompare(void * data ATTRIBUTE_UNUSED,const xmlChar * type,const xmlChar * value1,xmlNodePtr ctxt1,void * comp1,const xmlChar * value2,xmlNodePtr ctxt2)2569 xmlRelaxNGSchemaTypeCompare(void *data ATTRIBUTE_UNUSED,
2570 const xmlChar * type,
2571 const xmlChar * value1,
2572 xmlNodePtr ctxt1,
2573 void *comp1,
2574 const xmlChar * value2, xmlNodePtr ctxt2)
2575 {
2576 int ret;
2577 xmlSchemaTypePtr typ;
2578 xmlSchemaValPtr res1 = NULL, res2 = NULL;
2579
2580 if ((type == NULL) || (value1 == NULL) || (value2 == NULL))
2581 return (-1);
2582 typ = xmlSchemaGetPredefinedType(type,
2583 BAD_CAST
2584 "http://www.w3.org/2001/XMLSchema");
2585 if (typ == NULL)
2586 return (-1);
2587 if (comp1 == NULL) {
2588 ret = xmlSchemaValPredefTypeNode(typ, value1, &res1, ctxt1);
2589 if (ret != 0)
2590 return (-1);
2591 if (res1 == NULL)
2592 return (-1);
2593 } else {
2594 res1 = (xmlSchemaValPtr) comp1;
2595 }
2596 ret = xmlSchemaValPredefTypeNode(typ, value2, &res2, ctxt2);
2597 if (ret != 0) {
2598 if (res1 != (xmlSchemaValPtr) comp1)
2599 xmlSchemaFreeValue(res1);
2600 return (-1);
2601 }
2602 ret = xmlSchemaCompareValues(res1, res2);
2603 if (res1 != (xmlSchemaValPtr) comp1)
2604 xmlSchemaFreeValue(res1);
2605 xmlSchemaFreeValue(res2);
2606 if (ret == -2)
2607 return (-1);
2608 if (ret == 0)
2609 return (1);
2610 return (0);
2611 }
2612
2613 /**
2614 * xmlRelaxNGDefaultTypeHave:
2615 * @data: data needed for the library
2616 * @type: the type name
2617 *
2618 * Check if the given type is provided by
2619 * the default datatype library.
2620 *
2621 * Returns 1 if yes, 0 if no and -1 in case of error.
2622 */
2623 static int
xmlRelaxNGDefaultTypeHave(void * data ATTRIBUTE_UNUSED,const xmlChar * type)2624 xmlRelaxNGDefaultTypeHave(void *data ATTRIBUTE_UNUSED,
2625 const xmlChar * type)
2626 {
2627 if (type == NULL)
2628 return (-1);
2629 if (xmlStrEqual(type, BAD_CAST "string"))
2630 return (1);
2631 if (xmlStrEqual(type, BAD_CAST "token"))
2632 return (1);
2633 return (0);
2634 }
2635
2636 /**
2637 * xmlRelaxNGDefaultTypeCheck:
2638 * @data: data needed for the library
2639 * @type: the type name
2640 * @value: the value to check
2641 * @node: the node
2642 *
2643 * Check if the given type and value are validated by
2644 * the default datatype library.
2645 *
2646 * Returns 1 if yes, 0 if no and -1 in case of error.
2647 */
2648 static int
xmlRelaxNGDefaultTypeCheck(void * data ATTRIBUTE_UNUSED,const xmlChar * type ATTRIBUTE_UNUSED,const xmlChar * value ATTRIBUTE_UNUSED,void ** result ATTRIBUTE_UNUSED,xmlNodePtr node ATTRIBUTE_UNUSED)2649 xmlRelaxNGDefaultTypeCheck(void *data ATTRIBUTE_UNUSED,
2650 const xmlChar * type ATTRIBUTE_UNUSED,
2651 const xmlChar * value ATTRIBUTE_UNUSED,
2652 void **result ATTRIBUTE_UNUSED,
2653 xmlNodePtr node ATTRIBUTE_UNUSED)
2654 {
2655 if (value == NULL)
2656 return (-1);
2657 if (xmlStrEqual(type, BAD_CAST "string"))
2658 return (1);
2659 if (xmlStrEqual(type, BAD_CAST "token")) {
2660 return (1);
2661 }
2662
2663 return (0);
2664 }
2665
2666 /**
2667 * xmlRelaxNGDefaultTypeCompare:
2668 * @data: data needed for the library
2669 * @type: the type name
2670 * @value1: the first value
2671 * @value2: the second value
2672 *
2673 * Compare two values accordingly a type from the default
2674 * datatype library.
2675 *
2676 * Returns 1 if yes, 0 if no and -1 in case of error.
2677 */
2678 static int
xmlRelaxNGDefaultTypeCompare(void * data ATTRIBUTE_UNUSED,const xmlChar * type,const xmlChar * value1,xmlNodePtr ctxt1 ATTRIBUTE_UNUSED,void * comp1 ATTRIBUTE_UNUSED,const xmlChar * value2,xmlNodePtr ctxt2 ATTRIBUTE_UNUSED)2679 xmlRelaxNGDefaultTypeCompare(void *data ATTRIBUTE_UNUSED,
2680 const xmlChar * type,
2681 const xmlChar * value1,
2682 xmlNodePtr ctxt1 ATTRIBUTE_UNUSED,
2683 void *comp1 ATTRIBUTE_UNUSED,
2684 const xmlChar * value2,
2685 xmlNodePtr ctxt2 ATTRIBUTE_UNUSED)
2686 {
2687 int ret = -1;
2688
2689 if (xmlStrEqual(type, BAD_CAST "string")) {
2690 ret = xmlStrEqual(value1, value2);
2691 } else if (xmlStrEqual(type, BAD_CAST "token")) {
2692 if (!xmlStrEqual(value1, value2)) {
2693 xmlChar *nval, *nvalue;
2694
2695 /*
2696 * TODO: trivial optimizations are possible by
2697 * computing at compile-time
2698 */
2699 nval = xmlRelaxNGNormalize(NULL, value1);
2700 nvalue = xmlRelaxNGNormalize(NULL, value2);
2701
2702 if ((nval == NULL) || (nvalue == NULL))
2703 ret = -1;
2704 else if (xmlStrEqual(nval, nvalue))
2705 ret = 1;
2706 else
2707 ret = 0;
2708 if (nval != NULL)
2709 xmlFree(nval);
2710 if (nvalue != NULL)
2711 xmlFree(nvalue);
2712 } else
2713 ret = 1;
2714 }
2715 return (ret);
2716 }
2717
2718 static int xmlRelaxNGTypeInitialized = 0;
2719 static xmlHashTablePtr xmlRelaxNGRegisteredTypes = NULL;
2720
2721 /**
2722 * xmlRelaxNGFreeTypeLibrary:
2723 * @lib: the type library structure
2724 * @namespace: the URI bound to the library
2725 *
2726 * Free the structure associated to the type library
2727 */
2728 static void
xmlRelaxNGFreeTypeLibrary(xmlRelaxNGTypeLibraryPtr lib,const xmlChar * namespace ATTRIBUTE_UNUSED)2729 xmlRelaxNGFreeTypeLibrary(xmlRelaxNGTypeLibraryPtr lib,
2730 const xmlChar * namespace ATTRIBUTE_UNUSED)
2731 {
2732 if (lib == NULL)
2733 return;
2734 if (lib->namespace != NULL)
2735 xmlFree((xmlChar *) lib->namespace);
2736 xmlFree(lib);
2737 }
2738
2739 /**
2740 * xmlRelaxNGRegisterTypeLibrary:
2741 * @namespace: the URI bound to the library
2742 * @data: data associated to the library
2743 * @have: the provide function
2744 * @check: the checking function
2745 * @comp: the comparison function
2746 *
2747 * Register a new type library
2748 *
2749 * Returns 0 in case of success and -1 in case of error.
2750 */
2751 static int
xmlRelaxNGRegisterTypeLibrary(const xmlChar * namespace,void * data,xmlRelaxNGTypeHave have,xmlRelaxNGTypeCheck check,xmlRelaxNGTypeCompare comp,xmlRelaxNGFacetCheck facet,xmlRelaxNGTypeFree freef)2752 xmlRelaxNGRegisterTypeLibrary(const xmlChar * namespace, void *data,
2753 xmlRelaxNGTypeHave have,
2754 xmlRelaxNGTypeCheck check,
2755 xmlRelaxNGTypeCompare comp,
2756 xmlRelaxNGFacetCheck facet,
2757 xmlRelaxNGTypeFree freef)
2758 {
2759 xmlRelaxNGTypeLibraryPtr lib;
2760 int ret;
2761
2762 if ((xmlRelaxNGRegisteredTypes == NULL) || (namespace == NULL) ||
2763 (check == NULL) || (comp == NULL))
2764 return (-1);
2765 if (xmlHashLookup(xmlRelaxNGRegisteredTypes, namespace) != NULL) {
2766 xmlGenericError(xmlGenericErrorContext,
2767 "Relax-NG types library '%s' already registered\n",
2768 namespace);
2769 return (-1);
2770 }
2771 lib =
2772 (xmlRelaxNGTypeLibraryPtr)
2773 xmlMalloc(sizeof(xmlRelaxNGTypeLibrary));
2774 if (lib == NULL) {
2775 xmlRngVErrMemory(NULL, "adding types library\n");
2776 return (-1);
2777 }
2778 memset(lib, 0, sizeof(xmlRelaxNGTypeLibrary));
2779 lib->namespace = xmlStrdup(namespace);
2780 lib->data = data;
2781 lib->have = have;
2782 lib->comp = comp;
2783 lib->check = check;
2784 lib->facet = facet;
2785 lib->freef = freef;
2786 ret = xmlHashAddEntry(xmlRelaxNGRegisteredTypes, namespace, lib);
2787 if (ret < 0) {
2788 xmlGenericError(xmlGenericErrorContext,
2789 "Relax-NG types library failed to register '%s'\n",
2790 namespace);
2791 xmlRelaxNGFreeTypeLibrary(lib, namespace);
2792 return (-1);
2793 }
2794 return (0);
2795 }
2796
2797 /**
2798 * xmlRelaxNGInitTypes:
2799 *
2800 * Initilize the default type libraries.
2801 *
2802 * Returns 0 in case of success and -1 in case of error.
2803 */
2804 int
xmlRelaxNGInitTypes(void)2805 xmlRelaxNGInitTypes(void)
2806 {
2807 if (xmlRelaxNGTypeInitialized != 0)
2808 return (0);
2809 xmlRelaxNGRegisteredTypes = xmlHashCreate(10);
2810 if (xmlRelaxNGRegisteredTypes == NULL) {
2811 xmlGenericError(xmlGenericErrorContext,
2812 "Failed to allocate sh table for Relax-NG types\n");
2813 return (-1);
2814 }
2815 xmlRelaxNGRegisterTypeLibrary(BAD_CAST
2816 "http://www.w3.org/2001/XMLSchema-datatypes",
2817 NULL, xmlRelaxNGSchemaTypeHave,
2818 xmlRelaxNGSchemaTypeCheck,
2819 xmlRelaxNGSchemaTypeCompare,
2820 xmlRelaxNGSchemaFacetCheck,
2821 xmlRelaxNGSchemaFreeValue);
2822 xmlRelaxNGRegisterTypeLibrary(xmlRelaxNGNs, NULL,
2823 xmlRelaxNGDefaultTypeHave,
2824 xmlRelaxNGDefaultTypeCheck,
2825 xmlRelaxNGDefaultTypeCompare, NULL,
2826 NULL);
2827 xmlRelaxNGTypeInitialized = 1;
2828 return (0);
2829 }
2830
2831 /**
2832 * xmlRelaxNGCleanupTypes:
2833 *
2834 * Cleanup the default Schemas type library associated to RelaxNG
2835 */
2836 void
xmlRelaxNGCleanupTypes(void)2837 xmlRelaxNGCleanupTypes(void)
2838 {
2839 xmlSchemaCleanupTypes();
2840 if (xmlRelaxNGTypeInitialized == 0)
2841 return;
2842 xmlHashFree(xmlRelaxNGRegisteredTypes, (xmlHashDeallocator)
2843 xmlRelaxNGFreeTypeLibrary);
2844 xmlRelaxNGTypeInitialized = 0;
2845 }
2846
2847 /************************************************************************
2848 * *
2849 * Compiling element content into regexp *
2850 * *
2851 * Sometime the element content can be compiled into a pure regexp, *
2852 * This allows a faster execution and streamability at that level *
2853 * *
2854 ************************************************************************/
2855
2856 /* from automata.c but not exported */
2857 void xmlAutomataSetFlags(xmlAutomataPtr am, int flags);
2858
2859
2860 static int xmlRelaxNGTryCompile(xmlRelaxNGParserCtxtPtr ctxt,
2861 xmlRelaxNGDefinePtr def);
2862
2863 /**
2864 * xmlRelaxNGIsCompileable:
2865 * @define: the definition to check
2866 *
2867 * Check if a definition is nullable.
2868 *
2869 * Returns 1 if yes, 0 if no and -1 in case of error
2870 */
2871 static int
xmlRelaxNGIsCompileable(xmlRelaxNGDefinePtr def)2872 xmlRelaxNGIsCompileable(xmlRelaxNGDefinePtr def)
2873 {
2874 int ret = -1;
2875
2876 if (def == NULL) {
2877 return (-1);
2878 }
2879 if ((def->type != XML_RELAXNG_ELEMENT) &&
2880 (def->dflags & IS_COMPILABLE))
2881 return (1);
2882 if ((def->type != XML_RELAXNG_ELEMENT) &&
2883 (def->dflags & IS_NOT_COMPILABLE))
2884 return (0);
2885 switch (def->type) {
2886 case XML_RELAXNG_NOOP:
2887 ret = xmlRelaxNGIsCompileable(def->content);
2888 break;
2889 case XML_RELAXNG_TEXT:
2890 case XML_RELAXNG_EMPTY:
2891 ret = 1;
2892 break;
2893 case XML_RELAXNG_ELEMENT:
2894 /*
2895 * Check if the element content is compileable
2896 */
2897 if (((def->dflags & IS_NOT_COMPILABLE) == 0) &&
2898 ((def->dflags & IS_COMPILABLE) == 0)) {
2899 xmlRelaxNGDefinePtr list;
2900
2901 list = def->content;
2902 while (list != NULL) {
2903 ret = xmlRelaxNGIsCompileable(list);
2904 if (ret != 1)
2905 break;
2906 list = list->next;
2907 }
2908 /*
2909 * Because the routine is recursive, we must guard against
2910 * discovering both COMPILABLE and NOT_COMPILABLE
2911 */
2912 if (ret == 0) {
2913 def->dflags &= ~IS_COMPILABLE;
2914 def->dflags |= IS_NOT_COMPILABLE;
2915 }
2916 if ((ret == 1) && !(def->dflags &= IS_NOT_COMPILABLE))
2917 def->dflags |= IS_COMPILABLE;
2918 #ifdef DEBUG_COMPILE
2919 if (ret == 1) {
2920 xmlGenericError(xmlGenericErrorContext,
2921 "element content for %s is compilable\n",
2922 def->name);
2923 } else if (ret == 0) {
2924 xmlGenericError(xmlGenericErrorContext,
2925 "element content for %s is not compilable\n",
2926 def->name);
2927 } else {
2928 xmlGenericError(xmlGenericErrorContext,
2929 "Problem in RelaxNGIsCompileable for element %s\n",
2930 def->name);
2931 }
2932 #endif
2933 }
2934 /*
2935 * All elements return a compileable status unless they
2936 * are generic like anyName
2937 */
2938 if ((def->nameClass != NULL) || (def->name == NULL))
2939 ret = 0;
2940 else
2941 ret = 1;
2942 return (ret);
2943 case XML_RELAXNG_REF:
2944 case XML_RELAXNG_EXTERNALREF:
2945 case XML_RELAXNG_PARENTREF:
2946 if (def->depth == -20) {
2947 return (1);
2948 } else {
2949 xmlRelaxNGDefinePtr list;
2950
2951 def->depth = -20;
2952 list = def->content;
2953 while (list != NULL) {
2954 ret = xmlRelaxNGIsCompileable(list);
2955 if (ret != 1)
2956 break;
2957 list = list->next;
2958 }
2959 }
2960 break;
2961 case XML_RELAXNG_START:
2962 case XML_RELAXNG_OPTIONAL:
2963 case XML_RELAXNG_ZEROORMORE:
2964 case XML_RELAXNG_ONEORMORE:
2965 case XML_RELAXNG_CHOICE:
2966 case XML_RELAXNG_GROUP:
2967 case XML_RELAXNG_DEF:{
2968 xmlRelaxNGDefinePtr list;
2969
2970 list = def->content;
2971 while (list != NULL) {
2972 ret = xmlRelaxNGIsCompileable(list);
2973 if (ret != 1)
2974 break;
2975 list = list->next;
2976 }
2977 break;
2978 }
2979 case XML_RELAXNG_EXCEPT:
2980 case XML_RELAXNG_ATTRIBUTE:
2981 case XML_RELAXNG_INTERLEAVE:
2982 case XML_RELAXNG_DATATYPE:
2983 case XML_RELAXNG_LIST:
2984 case XML_RELAXNG_PARAM:
2985 case XML_RELAXNG_VALUE:
2986 case XML_RELAXNG_NOT_ALLOWED:
2987 ret = 0;
2988 break;
2989 }
2990 if (ret == 0)
2991 def->dflags |= IS_NOT_COMPILABLE;
2992 if (ret == 1)
2993 def->dflags |= IS_COMPILABLE;
2994 #ifdef DEBUG_COMPILE
2995 if (ret == 1) {
2996 xmlGenericError(xmlGenericErrorContext,
2997 "RelaxNGIsCompileable %s : true\n",
2998 xmlRelaxNGDefName(def));
2999 } else if (ret == 0) {
3000 xmlGenericError(xmlGenericErrorContext,
3001 "RelaxNGIsCompileable %s : false\n",
3002 xmlRelaxNGDefName(def));
3003 } else {
3004 xmlGenericError(xmlGenericErrorContext,
3005 "Problem in RelaxNGIsCompileable %s\n",
3006 xmlRelaxNGDefName(def));
3007 }
3008 #endif
3009 return (ret);
3010 }
3011
3012 /**
3013 * xmlRelaxNGCompile:
3014 * ctxt: the RelaxNG parser context
3015 * @define: the definition tree to compile
3016 *
3017 * Compile the set of definitions, it works recursively, till the
3018 * element boundaries, where it tries to compile the content if possible
3019 *
3020 * Returns 0 if success and -1 in case of error
3021 */
3022 static int
xmlRelaxNGCompile(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def)3023 xmlRelaxNGCompile(xmlRelaxNGParserCtxtPtr ctxt, xmlRelaxNGDefinePtr def)
3024 {
3025 int ret = 0;
3026 xmlRelaxNGDefinePtr list;
3027
3028 if ((ctxt == NULL) || (def == NULL))
3029 return (-1);
3030
3031 switch (def->type) {
3032 case XML_RELAXNG_START:
3033 if ((xmlRelaxNGIsCompileable(def) == 1) && (def->depth != -25)) {
3034 xmlAutomataPtr oldam = ctxt->am;
3035 xmlAutomataStatePtr oldstate = ctxt->state;
3036
3037 def->depth = -25;
3038
3039 list = def->content;
3040 ctxt->am = xmlNewAutomata();
3041 if (ctxt->am == NULL)
3042 return (-1);
3043
3044 /*
3045 * assume identical strings but not same pointer are different
3046 * atoms, needed for non-determinism detection
3047 * That way if 2 elements with the same name are in a choice
3048 * branch the automata is found non-deterministic and
3049 * we fallback to the normal validation which does the right
3050 * thing of exploring both choices.
3051 */
3052 xmlAutomataSetFlags(ctxt->am, 1);
3053
3054 ctxt->state = xmlAutomataGetInitState(ctxt->am);
3055 while (list != NULL) {
3056 xmlRelaxNGCompile(ctxt, list);
3057 list = list->next;
3058 }
3059 xmlAutomataSetFinalState(ctxt->am, ctxt->state);
3060 if (xmlAutomataIsDeterminist(ctxt->am))
3061 def->contModel = xmlAutomataCompile(ctxt->am);
3062
3063 xmlFreeAutomata(ctxt->am);
3064 ctxt->state = oldstate;
3065 ctxt->am = oldam;
3066 }
3067 break;
3068 case XML_RELAXNG_ELEMENT:
3069 if ((ctxt->am != NULL) && (def->name != NULL)) {
3070 ctxt->state = xmlAutomataNewTransition2(ctxt->am,
3071 ctxt->state, NULL,
3072 def->name, def->ns,
3073 def);
3074 }
3075 if ((def->dflags & IS_COMPILABLE) && (def->depth != -25)) {
3076 xmlAutomataPtr oldam = ctxt->am;
3077 xmlAutomataStatePtr oldstate = ctxt->state;
3078
3079 def->depth = -25;
3080
3081 list = def->content;
3082 ctxt->am = xmlNewAutomata();
3083 if (ctxt->am == NULL)
3084 return (-1);
3085 xmlAutomataSetFlags(ctxt->am, 1);
3086 ctxt->state = xmlAutomataGetInitState(ctxt->am);
3087 while (list != NULL) {
3088 xmlRelaxNGCompile(ctxt, list);
3089 list = list->next;
3090 }
3091 xmlAutomataSetFinalState(ctxt->am, ctxt->state);
3092 def->contModel = xmlAutomataCompile(ctxt->am);
3093 if (!xmlRegexpIsDeterminist(def->contModel)) {
3094 #ifdef DEBUG_COMPILE
3095 xmlGenericError(xmlGenericErrorContext,
3096 "Content model not determinist %s\n",
3097 def->name);
3098 #endif
3099 /*
3100 * we can only use the automata if it is determinist
3101 */
3102 xmlRegFreeRegexp(def->contModel);
3103 def->contModel = NULL;
3104 }
3105 xmlFreeAutomata(ctxt->am);
3106 ctxt->state = oldstate;
3107 ctxt->am = oldam;
3108 } else {
3109 xmlAutomataPtr oldam = ctxt->am;
3110
3111 /*
3112 * we can't build the content model for this element content
3113 * but it still might be possible to build it for some of its
3114 * children, recurse.
3115 */
3116 ret = xmlRelaxNGTryCompile(ctxt, def);
3117 ctxt->am = oldam;
3118 }
3119 break;
3120 case XML_RELAXNG_NOOP:
3121 ret = xmlRelaxNGCompile(ctxt, def->content);
3122 break;
3123 case XML_RELAXNG_OPTIONAL:{
3124 xmlAutomataStatePtr oldstate = ctxt->state;
3125
3126 list = def->content;
3127 while (list != NULL) {
3128 xmlRelaxNGCompile(ctxt, list);
3129 list = list->next;
3130 }
3131 xmlAutomataNewEpsilon(ctxt->am, oldstate, ctxt->state);
3132 break;
3133 }
3134 case XML_RELAXNG_ZEROORMORE:{
3135 xmlAutomataStatePtr oldstate;
3136
3137 ctxt->state =
3138 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
3139 oldstate = ctxt->state;
3140 list = def->content;
3141 while (list != NULL) {
3142 xmlRelaxNGCompile(ctxt, list);
3143 list = list->next;
3144 }
3145 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
3146 ctxt->state =
3147 xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
3148 break;
3149 }
3150 case XML_RELAXNG_ONEORMORE:{
3151 xmlAutomataStatePtr oldstate;
3152
3153 list = def->content;
3154 while (list != NULL) {
3155 xmlRelaxNGCompile(ctxt, list);
3156 list = list->next;
3157 }
3158 oldstate = ctxt->state;
3159 list = def->content;
3160 while (list != NULL) {
3161 xmlRelaxNGCompile(ctxt, list);
3162 list = list->next;
3163 }
3164 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, oldstate);
3165 ctxt->state =
3166 xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
3167 break;
3168 }
3169 case XML_RELAXNG_CHOICE:{
3170 xmlAutomataStatePtr target = NULL;
3171 xmlAutomataStatePtr oldstate = ctxt->state;
3172
3173 list = def->content;
3174 while (list != NULL) {
3175 ctxt->state = oldstate;
3176 ret = xmlRelaxNGCompile(ctxt, list);
3177 if (ret != 0)
3178 break;
3179 if (target == NULL)
3180 target = ctxt->state;
3181 else {
3182 xmlAutomataNewEpsilon(ctxt->am, ctxt->state,
3183 target);
3184 }
3185 list = list->next;
3186 }
3187 ctxt->state = target;
3188
3189 break;
3190 }
3191 case XML_RELAXNG_REF:
3192 case XML_RELAXNG_EXTERNALREF:
3193 case XML_RELAXNG_PARENTREF:
3194 case XML_RELAXNG_GROUP:
3195 case XML_RELAXNG_DEF:
3196 list = def->content;
3197 while (list != NULL) {
3198 ret = xmlRelaxNGCompile(ctxt, list);
3199 if (ret != 0)
3200 break;
3201 list = list->next;
3202 }
3203 break;
3204 case XML_RELAXNG_TEXT:{
3205 xmlAutomataStatePtr oldstate;
3206
3207 ctxt->state =
3208 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
3209 oldstate = ctxt->state;
3210 xmlRelaxNGCompile(ctxt, def->content);
3211 xmlAutomataNewTransition(ctxt->am, ctxt->state,
3212 ctxt->state, BAD_CAST "#text",
3213 NULL);
3214 ctxt->state =
3215 xmlAutomataNewEpsilon(ctxt->am, oldstate, NULL);
3216 break;
3217 }
3218 case XML_RELAXNG_EMPTY:
3219 ctxt->state =
3220 xmlAutomataNewEpsilon(ctxt->am, ctxt->state, NULL);
3221 break;
3222 case XML_RELAXNG_EXCEPT:
3223 case XML_RELAXNG_ATTRIBUTE:
3224 case XML_RELAXNG_INTERLEAVE:
3225 case XML_RELAXNG_NOT_ALLOWED:
3226 case XML_RELAXNG_DATATYPE:
3227 case XML_RELAXNG_LIST:
3228 case XML_RELAXNG_PARAM:
3229 case XML_RELAXNG_VALUE:
3230 /* This should not happen and generate an internal error */
3231 fprintf(stderr, "RNG internal error trying to compile %s\n",
3232 xmlRelaxNGDefName(def));
3233 break;
3234 }
3235 return (ret);
3236 }
3237
3238 /**
3239 * xmlRelaxNGTryCompile:
3240 * ctxt: the RelaxNG parser context
3241 * @define: the definition tree to compile
3242 *
3243 * Try to compile the set of definitions, it works recursively,
3244 * possibly ignoring parts which cannot be compiled.
3245 *
3246 * Returns 0 if success and -1 in case of error
3247 */
3248 static int
xmlRelaxNGTryCompile(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def)3249 xmlRelaxNGTryCompile(xmlRelaxNGParserCtxtPtr ctxt, xmlRelaxNGDefinePtr def)
3250 {
3251 int ret = 0;
3252 xmlRelaxNGDefinePtr list;
3253
3254 if ((ctxt == NULL) || (def == NULL))
3255 return (-1);
3256
3257 if ((def->type == XML_RELAXNG_START) ||
3258 (def->type == XML_RELAXNG_ELEMENT)) {
3259 ret = xmlRelaxNGIsCompileable(def);
3260 if ((def->dflags & IS_COMPILABLE) && (def->depth != -25)) {
3261 ctxt->am = NULL;
3262 ret = xmlRelaxNGCompile(ctxt, def);
3263 #ifdef DEBUG_PROGRESSIVE
3264 if (ret == 0) {
3265 if (def->type == XML_RELAXNG_START)
3266 xmlGenericError(xmlGenericErrorContext,
3267 "compiled the start\n");
3268 else
3269 xmlGenericError(xmlGenericErrorContext,
3270 "compiled element %s\n", def->name);
3271 } else {
3272 if (def->type == XML_RELAXNG_START)
3273 xmlGenericError(xmlGenericErrorContext,
3274 "failed to compile the start\n");
3275 else
3276 xmlGenericError(xmlGenericErrorContext,
3277 "failed to compile element %s\n",
3278 def->name);
3279 }
3280 #endif
3281 return (ret);
3282 }
3283 }
3284 switch (def->type) {
3285 case XML_RELAXNG_NOOP:
3286 ret = xmlRelaxNGTryCompile(ctxt, def->content);
3287 break;
3288 case XML_RELAXNG_TEXT:
3289 case XML_RELAXNG_DATATYPE:
3290 case XML_RELAXNG_LIST:
3291 case XML_RELAXNG_PARAM:
3292 case XML_RELAXNG_VALUE:
3293 case XML_RELAXNG_EMPTY:
3294 case XML_RELAXNG_ELEMENT:
3295 ret = 0;
3296 break;
3297 case XML_RELAXNG_OPTIONAL:
3298 case XML_RELAXNG_ZEROORMORE:
3299 case XML_RELAXNG_ONEORMORE:
3300 case XML_RELAXNG_CHOICE:
3301 case XML_RELAXNG_GROUP:
3302 case XML_RELAXNG_DEF:
3303 case XML_RELAXNG_START:
3304 case XML_RELAXNG_REF:
3305 case XML_RELAXNG_EXTERNALREF:
3306 case XML_RELAXNG_PARENTREF:
3307 list = def->content;
3308 while (list != NULL) {
3309 ret = xmlRelaxNGTryCompile(ctxt, list);
3310 if (ret != 0)
3311 break;
3312 list = list->next;
3313 }
3314 break;
3315 case XML_RELAXNG_EXCEPT:
3316 case XML_RELAXNG_ATTRIBUTE:
3317 case XML_RELAXNG_INTERLEAVE:
3318 case XML_RELAXNG_NOT_ALLOWED:
3319 ret = 0;
3320 break;
3321 }
3322 return (ret);
3323 }
3324
3325 /************************************************************************
3326 * *
3327 * Parsing functions *
3328 * *
3329 ************************************************************************/
3330
3331 static xmlRelaxNGDefinePtr xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr
3332 ctxt, xmlNodePtr node);
3333 static xmlRelaxNGDefinePtr xmlRelaxNGParseElement(xmlRelaxNGParserCtxtPtr
3334 ctxt, xmlNodePtr node);
3335 static xmlRelaxNGDefinePtr xmlRelaxNGParsePatterns(xmlRelaxNGParserCtxtPtr
3336 ctxt, xmlNodePtr nodes,
3337 int group);
3338 static xmlRelaxNGDefinePtr xmlRelaxNGParsePattern(xmlRelaxNGParserCtxtPtr
3339 ctxt, xmlNodePtr node);
3340 static xmlRelaxNGPtr xmlRelaxNGParseDocument(xmlRelaxNGParserCtxtPtr ctxt,
3341 xmlNodePtr node);
3342 static int xmlRelaxNGParseGrammarContent(xmlRelaxNGParserCtxtPtr ctxt,
3343 xmlNodePtr nodes);
3344 static xmlRelaxNGDefinePtr xmlRelaxNGParseNameClass(xmlRelaxNGParserCtxtPtr
3345 ctxt, xmlNodePtr node,
3346 xmlRelaxNGDefinePtr
3347 def);
3348 static xmlRelaxNGGrammarPtr xmlRelaxNGParseGrammar(xmlRelaxNGParserCtxtPtr
3349 ctxt, xmlNodePtr nodes);
3350 static int xmlRelaxNGElementMatch(xmlRelaxNGValidCtxtPtr ctxt,
3351 xmlRelaxNGDefinePtr define,
3352 xmlNodePtr elem);
3353
3354
3355 #define IS_BLANK_NODE(n) (xmlRelaxNGIsBlank((n)->content))
3356
3357 /**
3358 * xmlRelaxNGIsNullable:
3359 * @define: the definition to verify
3360 *
3361 * Check if a definition is nullable.
3362 *
3363 * Returns 1 if yes, 0 if no and -1 in case of error
3364 */
3365 static int
xmlRelaxNGIsNullable(xmlRelaxNGDefinePtr define)3366 xmlRelaxNGIsNullable(xmlRelaxNGDefinePtr define)
3367 {
3368 int ret;
3369
3370 if (define == NULL)
3371 return (-1);
3372
3373 if (define->dflags & IS_NULLABLE)
3374 return (1);
3375 if (define->dflags & IS_NOT_NULLABLE)
3376 return (0);
3377 switch (define->type) {
3378 case XML_RELAXNG_EMPTY:
3379 case XML_RELAXNG_TEXT:
3380 ret = 1;
3381 break;
3382 case XML_RELAXNG_NOOP:
3383 case XML_RELAXNG_DEF:
3384 case XML_RELAXNG_REF:
3385 case XML_RELAXNG_EXTERNALREF:
3386 case XML_RELAXNG_PARENTREF:
3387 case XML_RELAXNG_ONEORMORE:
3388 ret = xmlRelaxNGIsNullable(define->content);
3389 break;
3390 case XML_RELAXNG_EXCEPT:
3391 case XML_RELAXNG_NOT_ALLOWED:
3392 case XML_RELAXNG_ELEMENT:
3393 case XML_RELAXNG_DATATYPE:
3394 case XML_RELAXNG_PARAM:
3395 case XML_RELAXNG_VALUE:
3396 case XML_RELAXNG_LIST:
3397 case XML_RELAXNG_ATTRIBUTE:
3398 ret = 0;
3399 break;
3400 case XML_RELAXNG_CHOICE:{
3401 xmlRelaxNGDefinePtr list = define->content;
3402
3403 while (list != NULL) {
3404 ret = xmlRelaxNGIsNullable(list);
3405 if (ret != 0)
3406 goto done;
3407 list = list->next;
3408 }
3409 ret = 0;
3410 break;
3411 }
3412 case XML_RELAXNG_START:
3413 case XML_RELAXNG_INTERLEAVE:
3414 case XML_RELAXNG_GROUP:{
3415 xmlRelaxNGDefinePtr list = define->content;
3416
3417 while (list != NULL) {
3418 ret = xmlRelaxNGIsNullable(list);
3419 if (ret != 1)
3420 goto done;
3421 list = list->next;
3422 }
3423 return (1);
3424 }
3425 default:
3426 return (-1);
3427 }
3428 done:
3429 if (ret == 0)
3430 define->dflags |= IS_NOT_NULLABLE;
3431 if (ret == 1)
3432 define->dflags |= IS_NULLABLE;
3433 return (ret);
3434 }
3435
3436 /**
3437 * xmlRelaxNGIsBlank:
3438 * @str: a string
3439 *
3440 * Check if a string is ignorable c.f. 4.2. Whitespace
3441 *
3442 * Returns 1 if the string is NULL or made of blanks chars, 0 otherwise
3443 */
3444 static int
xmlRelaxNGIsBlank(xmlChar * str)3445 xmlRelaxNGIsBlank(xmlChar * str)
3446 {
3447 if (str == NULL)
3448 return (1);
3449 while (*str != 0) {
3450 if (!(IS_BLANK_CH(*str)))
3451 return (0);
3452 str++;
3453 }
3454 return (1);
3455 }
3456
3457 /**
3458 * xmlRelaxNGGetDataTypeLibrary:
3459 * @ctxt: a Relax-NG parser context
3460 * @node: the current data or value element
3461 *
3462 * Applies algorithm from 4.3. datatypeLibrary attribute
3463 *
3464 * Returns the datatypeLibary value or NULL if not found
3465 */
3466 static xmlChar *
xmlRelaxNGGetDataTypeLibrary(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlNodePtr node)3467 xmlRelaxNGGetDataTypeLibrary(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,
3468 xmlNodePtr node)
3469 {
3470 xmlChar *ret, *escape;
3471
3472 if (node == NULL)
3473 return(NULL);
3474
3475 if ((IS_RELAXNG(node, "data")) || (IS_RELAXNG(node, "value"))) {
3476 ret = xmlGetProp(node, BAD_CAST "datatypeLibrary");
3477 if (ret != NULL) {
3478 if (ret[0] == 0) {
3479 xmlFree(ret);
3480 return (NULL);
3481 }
3482 escape = xmlURIEscapeStr(ret, BAD_CAST ":/#?");
3483 if (escape == NULL) {
3484 return (ret);
3485 }
3486 xmlFree(ret);
3487 return (escape);
3488 }
3489 }
3490 node = node->parent;
3491 while ((node != NULL) && (node->type == XML_ELEMENT_NODE)) {
3492 ret = xmlGetProp(node, BAD_CAST "datatypeLibrary");
3493 if (ret != NULL) {
3494 if (ret[0] == 0) {
3495 xmlFree(ret);
3496 return (NULL);
3497 }
3498 escape = xmlURIEscapeStr(ret, BAD_CAST ":/#?");
3499 if (escape == NULL) {
3500 return (ret);
3501 }
3502 xmlFree(ret);
3503 return (escape);
3504 }
3505 node = node->parent;
3506 }
3507 return (NULL);
3508 }
3509
3510 /**
3511 * xmlRelaxNGParseValue:
3512 * @ctxt: a Relax-NG parser context
3513 * @node: the data node.
3514 *
3515 * parse the content of a RelaxNG value node.
3516 *
3517 * Returns the definition pointer or NULL in case of error
3518 */
3519 static xmlRelaxNGDefinePtr
xmlRelaxNGParseValue(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)3520 xmlRelaxNGParseValue(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
3521 {
3522 xmlRelaxNGDefinePtr def = NULL;
3523 xmlRelaxNGTypeLibraryPtr lib = NULL;
3524 xmlChar *type;
3525 xmlChar *library;
3526 int success = 0;
3527
3528 def = xmlRelaxNGNewDefine(ctxt, node);
3529 if (def == NULL)
3530 return (NULL);
3531 def->type = XML_RELAXNG_VALUE;
3532
3533 type = xmlGetProp(node, BAD_CAST "type");
3534 if (type != NULL) {
3535 xmlRelaxNGNormExtSpace(type);
3536 if (xmlValidateNCName(type, 0)) {
3537 xmlRngPErr(ctxt, node, XML_RNGP_TYPE_VALUE,
3538 "value type '%s' is not an NCName\n", type, NULL);
3539 }
3540 library = xmlRelaxNGGetDataTypeLibrary(ctxt, node);
3541 if (library == NULL)
3542 library =
3543 xmlStrdup(BAD_CAST "http://relaxng.org/ns/structure/1.0");
3544
3545 def->name = type;
3546 def->ns = library;
3547
3548 lib = (xmlRelaxNGTypeLibraryPtr)
3549 xmlHashLookup(xmlRelaxNGRegisteredTypes, library);
3550 if (lib == NULL) {
3551 xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_TYPE_LIB,
3552 "Use of unregistered type library '%s'\n", library,
3553 NULL);
3554 def->data = NULL;
3555 } else {
3556 def->data = lib;
3557 if (lib->have == NULL) {
3558 xmlRngPErr(ctxt, node, XML_RNGP_ERROR_TYPE_LIB,
3559 "Internal error with type library '%s': no 'have'\n",
3560 library, NULL);
3561 } else {
3562 success = lib->have(lib->data, def->name);
3563 if (success != 1) {
3564 xmlRngPErr(ctxt, node, XML_RNGP_TYPE_NOT_FOUND,
3565 "Error type '%s' is not exported by type library '%s'\n",
3566 def->name, library);
3567 }
3568 }
3569 }
3570 }
3571 if (node->children == NULL) {
3572 def->value = xmlStrdup(BAD_CAST "");
3573 } else if (((node->children->type != XML_TEXT_NODE) &&
3574 (node->children->type != XML_CDATA_SECTION_NODE)) ||
3575 (node->children->next != NULL)) {
3576 xmlRngPErr(ctxt, node, XML_RNGP_TEXT_EXPECTED,
3577 "Expecting a single text value for <value>content\n",
3578 NULL, NULL);
3579 } else if (def != NULL) {
3580 def->value = xmlNodeGetContent(node);
3581 if (def->value == NULL) {
3582 xmlRngPErr(ctxt, node, XML_RNGP_VALUE_NO_CONTENT,
3583 "Element <value> has no content\n", NULL, NULL);
3584 } else if ((lib != NULL) && (lib->check != NULL) && (success == 1)) {
3585 void *val = NULL;
3586
3587 success =
3588 lib->check(lib->data, def->name, def->value, &val, node);
3589 if (success != 1) {
3590 xmlRngPErr(ctxt, node, XML_RNGP_INVALID_VALUE,
3591 "Value '%s' is not acceptable for type '%s'\n",
3592 def->value, def->name);
3593 } else {
3594 if (val != NULL)
3595 def->attrs = val;
3596 }
3597 }
3598 }
3599 return (def);
3600 }
3601
3602 /**
3603 * xmlRelaxNGParseData:
3604 * @ctxt: a Relax-NG parser context
3605 * @node: the data node.
3606 *
3607 * parse the content of a RelaxNG data node.
3608 *
3609 * Returns the definition pointer or NULL in case of error
3610 */
3611 static xmlRelaxNGDefinePtr
xmlRelaxNGParseData(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)3612 xmlRelaxNGParseData(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
3613 {
3614 xmlRelaxNGDefinePtr def = NULL, except;
3615 xmlRelaxNGDefinePtr param, lastparam = NULL;
3616 xmlRelaxNGTypeLibraryPtr lib;
3617 xmlChar *type;
3618 xmlChar *library;
3619 xmlNodePtr content;
3620 int tmp;
3621
3622 type = xmlGetProp(node, BAD_CAST "type");
3623 if (type == NULL) {
3624 xmlRngPErr(ctxt, node, XML_RNGP_TYPE_MISSING, "data has no type\n", NULL,
3625 NULL);
3626 return (NULL);
3627 }
3628 xmlRelaxNGNormExtSpace(type);
3629 if (xmlValidateNCName(type, 0)) {
3630 xmlRngPErr(ctxt, node, XML_RNGP_TYPE_VALUE,
3631 "data type '%s' is not an NCName\n", type, NULL);
3632 }
3633 library = xmlRelaxNGGetDataTypeLibrary(ctxt, node);
3634 if (library == NULL)
3635 library =
3636 xmlStrdup(BAD_CAST "http://relaxng.org/ns/structure/1.0");
3637
3638 def = xmlRelaxNGNewDefine(ctxt, node);
3639 if (def == NULL) {
3640 xmlFree(type);
3641 return (NULL);
3642 }
3643 def->type = XML_RELAXNG_DATATYPE;
3644 def->name = type;
3645 def->ns = library;
3646
3647 lib = (xmlRelaxNGTypeLibraryPtr)
3648 xmlHashLookup(xmlRelaxNGRegisteredTypes, library);
3649 if (lib == NULL) {
3650 xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_TYPE_LIB,
3651 "Use of unregistered type library '%s'\n", library,
3652 NULL);
3653 def->data = NULL;
3654 } else {
3655 def->data = lib;
3656 if (lib->have == NULL) {
3657 xmlRngPErr(ctxt, node, XML_RNGP_ERROR_TYPE_LIB,
3658 "Internal error with type library '%s': no 'have'\n",
3659 library, NULL);
3660 } else {
3661 tmp = lib->have(lib->data, def->name);
3662 if (tmp != 1) {
3663 xmlRngPErr(ctxt, node, XML_RNGP_TYPE_NOT_FOUND,
3664 "Error type '%s' is not exported by type library '%s'\n",
3665 def->name, library);
3666 } else
3667 if ((xmlStrEqual
3668 (library,
3669 BAD_CAST
3670 "http://www.w3.org/2001/XMLSchema-datatypes"))
3671 && ((xmlStrEqual(def->name, BAD_CAST "IDREF"))
3672 || (xmlStrEqual(def->name, BAD_CAST "IDREFS")))) {
3673 ctxt->idref = 1;
3674 }
3675 }
3676 }
3677 content = node->children;
3678
3679 /*
3680 * Handle optional params
3681 */
3682 while (content != NULL) {
3683 if (!xmlStrEqual(content->name, BAD_CAST "param"))
3684 break;
3685 if (xmlStrEqual(library,
3686 BAD_CAST "http://relaxng.org/ns/structure/1.0")) {
3687 xmlRngPErr(ctxt, node, XML_RNGP_PARAM_FORBIDDEN,
3688 "Type library '%s' does not allow type parameters\n",
3689 library, NULL);
3690 content = content->next;
3691 while ((content != NULL) &&
3692 (xmlStrEqual(content->name, BAD_CAST "param")))
3693 content = content->next;
3694 } else {
3695 param = xmlRelaxNGNewDefine(ctxt, node);
3696 if (param != NULL) {
3697 param->type = XML_RELAXNG_PARAM;
3698 param->name = xmlGetProp(content, BAD_CAST "name");
3699 if (param->name == NULL) {
3700 xmlRngPErr(ctxt, node, XML_RNGP_PARAM_NAME_MISSING,
3701 "param has no name\n", NULL, NULL);
3702 }
3703 param->value = xmlNodeGetContent(content);
3704 if (lastparam == NULL) {
3705 def->attrs = lastparam = param;
3706 } else {
3707 lastparam->next = param;
3708 lastparam = param;
3709 }
3710 if (lib != NULL) {
3711 }
3712 }
3713 content = content->next;
3714 }
3715 }
3716 /*
3717 * Handle optional except
3718 */
3719 if ((content != NULL)
3720 && (xmlStrEqual(content->name, BAD_CAST "except"))) {
3721 xmlNodePtr child;
3722 xmlRelaxNGDefinePtr tmp2, last = NULL;
3723
3724 except = xmlRelaxNGNewDefine(ctxt, node);
3725 if (except == NULL) {
3726 return (def);
3727 }
3728 except->type = XML_RELAXNG_EXCEPT;
3729 child = content->children;
3730 def->content = except;
3731 if (child == NULL) {
3732 xmlRngPErr(ctxt, content, XML_RNGP_EXCEPT_NO_CONTENT,
3733 "except has no content\n", NULL, NULL);
3734 }
3735 while (child != NULL) {
3736 tmp2 = xmlRelaxNGParsePattern(ctxt, child);
3737 if (tmp2 != NULL) {
3738 if (last == NULL) {
3739 except->content = last = tmp2;
3740 } else {
3741 last->next = tmp2;
3742 last = tmp2;
3743 }
3744 }
3745 child = child->next;
3746 }
3747 content = content->next;
3748 }
3749 /*
3750 * Check there is no unhandled data
3751 */
3752 if (content != NULL) {
3753 xmlRngPErr(ctxt, content, XML_RNGP_DATA_CONTENT,
3754 "Element data has unexpected content %s\n",
3755 content->name, NULL);
3756 }
3757
3758 return (def);
3759 }
3760
3761 static const xmlChar *invalidName = BAD_CAST "\1";
3762
3763 /**
3764 * xmlRelaxNGCompareNameClasses:
3765 * @defs1: the first element/attribute defs
3766 * @defs2: the second element/attribute defs
3767 * @name: the restriction on the name
3768 * @ns: the restriction on the namespace
3769 *
3770 * Compare the 2 lists of element definitions. The comparison is
3771 * that if both lists do not accept the same QNames, it returns 1
3772 * If the 2 lists can accept the same QName the comparison returns 0
3773 *
3774 * Returns 1 disttinct, 0 if equal
3775 */
3776 static int
xmlRelaxNGCompareNameClasses(xmlRelaxNGDefinePtr def1,xmlRelaxNGDefinePtr def2)3777 xmlRelaxNGCompareNameClasses(xmlRelaxNGDefinePtr def1,
3778 xmlRelaxNGDefinePtr def2)
3779 {
3780 int ret = 1;
3781 xmlNode node;
3782 xmlNs ns;
3783 xmlRelaxNGValidCtxt ctxt;
3784
3785 memset(&ctxt, 0, sizeof(xmlRelaxNGValidCtxt));
3786
3787 ctxt.flags = FLAGS_IGNORABLE | FLAGS_NOERROR;
3788
3789 if ((def1->type == XML_RELAXNG_ELEMENT) ||
3790 (def1->type == XML_RELAXNG_ATTRIBUTE)) {
3791 if (def2->type == XML_RELAXNG_TEXT)
3792 return (1);
3793 if (def1->name != NULL) {
3794 node.name = def1->name;
3795 } else {
3796 node.name = invalidName;
3797 }
3798 if (def1->ns != NULL) {
3799 if (def1->ns[0] == 0) {
3800 node.ns = NULL;
3801 } else {
3802 node.ns = &ns;
3803 ns.href = def1->ns;
3804 }
3805 } else {
3806 node.ns = NULL;
3807 }
3808 if (xmlRelaxNGElementMatch(&ctxt, def2, &node)) {
3809 if (def1->nameClass != NULL) {
3810 ret = xmlRelaxNGCompareNameClasses(def1->nameClass, def2);
3811 } else {
3812 ret = 0;
3813 }
3814 } else {
3815 ret = 1;
3816 }
3817 } else if (def1->type == XML_RELAXNG_TEXT) {
3818 if (def2->type == XML_RELAXNG_TEXT)
3819 return (0);
3820 return (1);
3821 } else if (def1->type == XML_RELAXNG_EXCEPT) {
3822 TODO ret = 0;
3823 } else {
3824 TODO ret = 0;
3825 }
3826 if (ret == 0)
3827 return (ret);
3828 if ((def2->type == XML_RELAXNG_ELEMENT) ||
3829 (def2->type == XML_RELAXNG_ATTRIBUTE)) {
3830 if (def2->name != NULL) {
3831 node.name = def2->name;
3832 } else {
3833 node.name = invalidName;
3834 }
3835 node.ns = &ns;
3836 if (def2->ns != NULL) {
3837 if (def2->ns[0] == 0) {
3838 node.ns = NULL;
3839 } else {
3840 ns.href = def2->ns;
3841 }
3842 } else {
3843 ns.href = invalidName;
3844 }
3845 if (xmlRelaxNGElementMatch(&ctxt, def1, &node)) {
3846 if (def2->nameClass != NULL) {
3847 ret = xmlRelaxNGCompareNameClasses(def2->nameClass, def1);
3848 } else {
3849 ret = 0;
3850 }
3851 } else {
3852 ret = 1;
3853 }
3854 } else {
3855 TODO ret = 0;
3856 }
3857
3858 return (ret);
3859 }
3860
3861 /**
3862 * xmlRelaxNGCompareElemDefLists:
3863 * @ctxt: a Relax-NG parser context
3864 * @defs1: the first list of element/attribute defs
3865 * @defs2: the second list of element/attribute defs
3866 *
3867 * Compare the 2 lists of element or attribute definitions. The comparison
3868 * is that if both lists do not accept the same QNames, it returns 1
3869 * If the 2 lists can accept the same QName the comparison returns 0
3870 *
3871 * Returns 1 disttinct, 0 if equal
3872 */
3873 static int
xmlRelaxNGCompareElemDefLists(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlRelaxNGDefinePtr * def1,xmlRelaxNGDefinePtr * def2)3874 xmlRelaxNGCompareElemDefLists(xmlRelaxNGParserCtxtPtr ctxt
3875 ATTRIBUTE_UNUSED, xmlRelaxNGDefinePtr * def1,
3876 xmlRelaxNGDefinePtr * def2)
3877 {
3878 xmlRelaxNGDefinePtr *basedef2 = def2;
3879
3880 if ((def1 == NULL) || (def2 == NULL))
3881 return (1);
3882 if ((*def1 == NULL) || (*def2 == NULL))
3883 return (1);
3884 while (*def1 != NULL) {
3885 while ((*def2) != NULL) {
3886 if (xmlRelaxNGCompareNameClasses(*def1, *def2) == 0)
3887 return (0);
3888 def2++;
3889 }
3890 def2 = basedef2;
3891 def1++;
3892 }
3893 return (1);
3894 }
3895
3896 /**
3897 * xmlRelaxNGGenerateAttributes:
3898 * @ctxt: a Relax-NG parser context
3899 * @def: the definition definition
3900 *
3901 * Check if the definition can only generate attributes
3902 *
3903 * Returns 1 if yes, 0 if no and -1 in case of error.
3904 */
3905 static int
xmlRelaxNGGenerateAttributes(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def)3906 xmlRelaxNGGenerateAttributes(xmlRelaxNGParserCtxtPtr ctxt,
3907 xmlRelaxNGDefinePtr def)
3908 {
3909 xmlRelaxNGDefinePtr parent, cur, tmp;
3910
3911 /*
3912 * Don't run that check in case of error. Infinite recursion
3913 * becomes possible.
3914 */
3915 if (ctxt->nbErrors != 0)
3916 return (-1);
3917
3918 parent = NULL;
3919 cur = def;
3920 while (cur != NULL) {
3921 if ((cur->type == XML_RELAXNG_ELEMENT) ||
3922 (cur->type == XML_RELAXNG_TEXT) ||
3923 (cur->type == XML_RELAXNG_DATATYPE) ||
3924 (cur->type == XML_RELAXNG_PARAM) ||
3925 (cur->type == XML_RELAXNG_LIST) ||
3926 (cur->type == XML_RELAXNG_VALUE) ||
3927 (cur->type == XML_RELAXNG_EMPTY))
3928 return (0);
3929 if ((cur->type == XML_RELAXNG_CHOICE) ||
3930 (cur->type == XML_RELAXNG_INTERLEAVE) ||
3931 (cur->type == XML_RELAXNG_GROUP) ||
3932 (cur->type == XML_RELAXNG_ONEORMORE) ||
3933 (cur->type == XML_RELAXNG_ZEROORMORE) ||
3934 (cur->type == XML_RELAXNG_OPTIONAL) ||
3935 (cur->type == XML_RELAXNG_PARENTREF) ||
3936 (cur->type == XML_RELAXNG_EXTERNALREF) ||
3937 (cur->type == XML_RELAXNG_REF) ||
3938 (cur->type == XML_RELAXNG_DEF)) {
3939 if (cur->content != NULL) {
3940 parent = cur;
3941 cur = cur->content;
3942 tmp = cur;
3943 while (tmp != NULL) {
3944 tmp->parent = parent;
3945 tmp = tmp->next;
3946 }
3947 continue;
3948 }
3949 }
3950 if (cur == def)
3951 break;
3952 if (cur->next != NULL) {
3953 cur = cur->next;
3954 continue;
3955 }
3956 do {
3957 cur = cur->parent;
3958 if (cur == NULL)
3959 break;
3960 if (cur == def)
3961 return (1);
3962 if (cur->next != NULL) {
3963 cur = cur->next;
3964 break;
3965 }
3966 } while (cur != NULL);
3967 }
3968 return (1);
3969 }
3970
3971 /**
3972 * xmlRelaxNGGetElements:
3973 * @ctxt: a Relax-NG parser context
3974 * @def: the definition definition
3975 * @eora: gather elements (0) or attributes (1)
3976 *
3977 * Compute the list of top elements a definition can generate
3978 *
3979 * Returns a list of elements or NULL if none was found.
3980 */
3981 static xmlRelaxNGDefinePtr *
xmlRelaxNGGetElements(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def,int eora)3982 xmlRelaxNGGetElements(xmlRelaxNGParserCtxtPtr ctxt,
3983 xmlRelaxNGDefinePtr def, int eora)
3984 {
3985 xmlRelaxNGDefinePtr *ret = NULL, parent, cur, tmp;
3986 int len = 0;
3987 int max = 0;
3988
3989 /*
3990 * Don't run that check in case of error. Infinite recursion
3991 * becomes possible.
3992 */
3993 if (ctxt->nbErrors != 0)
3994 return (NULL);
3995
3996 parent = NULL;
3997 cur = def;
3998 while (cur != NULL) {
3999 if (((eora == 0) && ((cur->type == XML_RELAXNG_ELEMENT) ||
4000 (cur->type == XML_RELAXNG_TEXT))) ||
4001 ((eora == 1) && (cur->type == XML_RELAXNG_ATTRIBUTE))) {
4002 if (ret == NULL) {
4003 max = 10;
4004 ret = (xmlRelaxNGDefinePtr *)
4005 xmlMalloc((max + 1) * sizeof(xmlRelaxNGDefinePtr));
4006 if (ret == NULL) {
4007 xmlRngPErrMemory(ctxt, "getting element list\n");
4008 return (NULL);
4009 }
4010 } else if (max <= len) {
4011 xmlRelaxNGDefinePtr *temp;
4012
4013 max *= 2;
4014 temp = xmlRealloc(ret,
4015 (max + 1) * sizeof(xmlRelaxNGDefinePtr));
4016 if (temp == NULL) {
4017 xmlRngPErrMemory(ctxt, "getting element list\n");
4018 xmlFree(ret);
4019 return (NULL);
4020 }
4021 ret = temp;
4022 }
4023 ret[len++] = cur;
4024 ret[len] = NULL;
4025 } else if ((cur->type == XML_RELAXNG_CHOICE) ||
4026 (cur->type == XML_RELAXNG_INTERLEAVE) ||
4027 (cur->type == XML_RELAXNG_GROUP) ||
4028 (cur->type == XML_RELAXNG_ONEORMORE) ||
4029 (cur->type == XML_RELAXNG_ZEROORMORE) ||
4030 (cur->type == XML_RELAXNG_OPTIONAL) ||
4031 (cur->type == XML_RELAXNG_PARENTREF) ||
4032 (cur->type == XML_RELAXNG_REF) ||
4033 (cur->type == XML_RELAXNG_DEF) ||
4034 (cur->type == XML_RELAXNG_EXTERNALREF)) {
4035 /*
4036 * Don't go within elements or attributes or string values.
4037 * Just gather the element top list
4038 */
4039 if (cur->content != NULL) {
4040 parent = cur;
4041 cur = cur->content;
4042 tmp = cur;
4043 while (tmp != NULL) {
4044 tmp->parent = parent;
4045 tmp = tmp->next;
4046 }
4047 continue;
4048 }
4049 }
4050 if (cur == def)
4051 break;
4052 if (cur->next != NULL) {
4053 cur = cur->next;
4054 continue;
4055 }
4056 do {
4057 cur = cur->parent;
4058 if (cur == NULL)
4059 break;
4060 if (cur == def)
4061 return (ret);
4062 if (cur->next != NULL) {
4063 cur = cur->next;
4064 break;
4065 }
4066 } while (cur != NULL);
4067 }
4068 return (ret);
4069 }
4070
4071 /**
4072 * xmlRelaxNGCheckChoiceDeterminism:
4073 * @ctxt: a Relax-NG parser context
4074 * @def: the choice definition
4075 *
4076 * Also used to find indeterministic pattern in choice
4077 */
4078 static void
xmlRelaxNGCheckChoiceDeterminism(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def)4079 xmlRelaxNGCheckChoiceDeterminism(xmlRelaxNGParserCtxtPtr ctxt,
4080 xmlRelaxNGDefinePtr def)
4081 {
4082 xmlRelaxNGDefinePtr **list;
4083 xmlRelaxNGDefinePtr cur;
4084 int nbchild = 0, i, j, ret;
4085 int is_nullable = 0;
4086 int is_indeterminist = 0;
4087 xmlHashTablePtr triage = NULL;
4088 int is_triable = 1;
4089
4090 if ((def == NULL) || (def->type != XML_RELAXNG_CHOICE))
4091 return;
4092
4093 if (def->dflags & IS_PROCESSED)
4094 return;
4095
4096 /*
4097 * Don't run that check in case of error. Infinite recursion
4098 * becomes possible.
4099 */
4100 if (ctxt->nbErrors != 0)
4101 return;
4102
4103 is_nullable = xmlRelaxNGIsNullable(def);
4104
4105 cur = def->content;
4106 while (cur != NULL) {
4107 nbchild++;
4108 cur = cur->next;
4109 }
4110
4111 list = (xmlRelaxNGDefinePtr **) xmlMalloc(nbchild *
4112 sizeof(xmlRelaxNGDefinePtr
4113 *));
4114 if (list == NULL) {
4115 xmlRngPErrMemory(ctxt, "building choice\n");
4116 return;
4117 }
4118 i = 0;
4119 /*
4120 * a bit strong but safe
4121 */
4122 if (is_nullable == 0) {
4123 triage = xmlHashCreate(10);
4124 } else {
4125 is_triable = 0;
4126 }
4127 cur = def->content;
4128 while (cur != NULL) {
4129 list[i] = xmlRelaxNGGetElements(ctxt, cur, 0);
4130 if ((list[i] == NULL) || (list[i][0] == NULL)) {
4131 is_triable = 0;
4132 } else if (is_triable == 1) {
4133 xmlRelaxNGDefinePtr *tmp;
4134 int res;
4135
4136 tmp = list[i];
4137 while ((*tmp != NULL) && (is_triable == 1)) {
4138 if ((*tmp)->type == XML_RELAXNG_TEXT) {
4139 res = xmlHashAddEntry2(triage,
4140 BAD_CAST "#text", NULL,
4141 (void *) cur);
4142 if (res != 0)
4143 is_triable = -1;
4144 } else if (((*tmp)->type == XML_RELAXNG_ELEMENT) &&
4145 ((*tmp)->name != NULL)) {
4146 if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
4147 res = xmlHashAddEntry2(triage,
4148 (*tmp)->name, NULL,
4149 (void *) cur);
4150 else
4151 res = xmlHashAddEntry2(triage,
4152 (*tmp)->name, (*tmp)->ns,
4153 (void *) cur);
4154 if (res != 0)
4155 is_triable = -1;
4156 } else if ((*tmp)->type == XML_RELAXNG_ELEMENT) {
4157 if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
4158 res = xmlHashAddEntry2(triage,
4159 BAD_CAST "#any", NULL,
4160 (void *) cur);
4161 else
4162 res = xmlHashAddEntry2(triage,
4163 BAD_CAST "#any", (*tmp)->ns,
4164 (void *) cur);
4165 if (res != 0)
4166 is_triable = -1;
4167 } else {
4168 is_triable = -1;
4169 }
4170 tmp++;
4171 }
4172 }
4173 i++;
4174 cur = cur->next;
4175 }
4176
4177 for (i = 0; i < nbchild; i++) {
4178 if (list[i] == NULL)
4179 continue;
4180 for (j = 0; j < i; j++) {
4181 if (list[j] == NULL)
4182 continue;
4183 ret = xmlRelaxNGCompareElemDefLists(ctxt, list[i], list[j]);
4184 if (ret == 0) {
4185 is_indeterminist = 1;
4186 }
4187 }
4188 }
4189 for (i = 0; i < nbchild; i++) {
4190 if (list[i] != NULL)
4191 xmlFree(list[i]);
4192 }
4193
4194 xmlFree(list);
4195 if (is_indeterminist) {
4196 def->dflags |= IS_INDETERMINIST;
4197 }
4198 if (is_triable == 1) {
4199 def->dflags |= IS_TRIABLE;
4200 def->data = triage;
4201 } else if (triage != NULL) {
4202 xmlHashFree(triage, NULL);
4203 }
4204 def->dflags |= IS_PROCESSED;
4205 }
4206
4207 /**
4208 * xmlRelaxNGCheckGroupAttrs:
4209 * @ctxt: a Relax-NG parser context
4210 * @def: the group definition
4211 *
4212 * Detects violations of rule 7.3
4213 */
4214 static void
xmlRelaxNGCheckGroupAttrs(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr def)4215 xmlRelaxNGCheckGroupAttrs(xmlRelaxNGParserCtxtPtr ctxt,
4216 xmlRelaxNGDefinePtr def)
4217 {
4218 xmlRelaxNGDefinePtr **list;
4219 xmlRelaxNGDefinePtr cur;
4220 int nbchild = 0, i, j, ret;
4221
4222 if ((def == NULL) ||
4223 ((def->type != XML_RELAXNG_GROUP) &&
4224 (def->type != XML_RELAXNG_ELEMENT)))
4225 return;
4226
4227 if (def->dflags & IS_PROCESSED)
4228 return;
4229
4230 /*
4231 * Don't run that check in case of error. Infinite recursion
4232 * becomes possible.
4233 */
4234 if (ctxt->nbErrors != 0)
4235 return;
4236
4237 cur = def->attrs;
4238 while (cur != NULL) {
4239 nbchild++;
4240 cur = cur->next;
4241 }
4242 cur = def->content;
4243 while (cur != NULL) {
4244 nbchild++;
4245 cur = cur->next;
4246 }
4247
4248 list = (xmlRelaxNGDefinePtr **) xmlMalloc(nbchild *
4249 sizeof(xmlRelaxNGDefinePtr
4250 *));
4251 if (list == NULL) {
4252 xmlRngPErrMemory(ctxt, "building group\n");
4253 return;
4254 }
4255 i = 0;
4256 cur = def->attrs;
4257 while (cur != NULL) {
4258 list[i] = xmlRelaxNGGetElements(ctxt, cur, 1);
4259 i++;
4260 cur = cur->next;
4261 }
4262 cur = def->content;
4263 while (cur != NULL) {
4264 list[i] = xmlRelaxNGGetElements(ctxt, cur, 1);
4265 i++;
4266 cur = cur->next;
4267 }
4268
4269 for (i = 0; i < nbchild; i++) {
4270 if (list[i] == NULL)
4271 continue;
4272 for (j = 0; j < i; j++) {
4273 if (list[j] == NULL)
4274 continue;
4275 ret = xmlRelaxNGCompareElemDefLists(ctxt, list[i], list[j]);
4276 if (ret == 0) {
4277 xmlRngPErr(ctxt, def->node, XML_RNGP_GROUP_ATTR_CONFLICT,
4278 "Attributes conflicts in group\n", NULL, NULL);
4279 }
4280 }
4281 }
4282 for (i = 0; i < nbchild; i++) {
4283 if (list[i] != NULL)
4284 xmlFree(list[i]);
4285 }
4286
4287 xmlFree(list);
4288 def->dflags |= IS_PROCESSED;
4289 }
4290
4291 /**
4292 * xmlRelaxNGComputeInterleaves:
4293 * @def: the interleave definition
4294 * @ctxt: a Relax-NG parser context
4295 * @name: the definition name
4296 *
4297 * A lot of work for preprocessing interleave definitions
4298 * is potentially needed to get a decent execution speed at runtime
4299 * - trying to get a total order on the element nodes generated
4300 * by the interleaves, order the list of interleave definitions
4301 * following that order.
4302 * - if <text/> is used to handle mixed content, it is better to
4303 * flag this in the define and simplify the runtime checking
4304 * algorithm
4305 */
4306 static void
xmlRelaxNGComputeInterleaves(xmlRelaxNGDefinePtr def,xmlRelaxNGParserCtxtPtr ctxt,xmlChar * name ATTRIBUTE_UNUSED)4307 xmlRelaxNGComputeInterleaves(xmlRelaxNGDefinePtr def,
4308 xmlRelaxNGParserCtxtPtr ctxt,
4309 xmlChar * name ATTRIBUTE_UNUSED)
4310 {
4311 xmlRelaxNGDefinePtr cur, *tmp;
4312
4313 xmlRelaxNGPartitionPtr partitions = NULL;
4314 xmlRelaxNGInterleaveGroupPtr *groups = NULL;
4315 xmlRelaxNGInterleaveGroupPtr group;
4316 int i, j, ret, res;
4317 int nbgroups = 0;
4318 int nbchild = 0;
4319 int is_mixed = 0;
4320 int is_determinist = 1;
4321
4322 /*
4323 * Don't run that check in case of error. Infinite recursion
4324 * becomes possible.
4325 */
4326 if (ctxt->nbErrors != 0)
4327 return;
4328
4329 #ifdef DEBUG_INTERLEAVE
4330 xmlGenericError(xmlGenericErrorContext,
4331 "xmlRelaxNGComputeInterleaves(%s)\n", name);
4332 #endif
4333 cur = def->content;
4334 while (cur != NULL) {
4335 nbchild++;
4336 cur = cur->next;
4337 }
4338
4339 #ifdef DEBUG_INTERLEAVE
4340 xmlGenericError(xmlGenericErrorContext, " %d child\n", nbchild);
4341 #endif
4342 groups = (xmlRelaxNGInterleaveGroupPtr *)
4343 xmlMalloc(nbchild * sizeof(xmlRelaxNGInterleaveGroupPtr));
4344 if (groups == NULL)
4345 goto error;
4346 cur = def->content;
4347 while (cur != NULL) {
4348 groups[nbgroups] = (xmlRelaxNGInterleaveGroupPtr)
4349 xmlMalloc(sizeof(xmlRelaxNGInterleaveGroup));
4350 if (groups[nbgroups] == NULL)
4351 goto error;
4352 if (cur->type == XML_RELAXNG_TEXT)
4353 is_mixed++;
4354 groups[nbgroups]->rule = cur;
4355 groups[nbgroups]->defs = xmlRelaxNGGetElements(ctxt, cur, 0);
4356 groups[nbgroups]->attrs = xmlRelaxNGGetElements(ctxt, cur, 1);
4357 nbgroups++;
4358 cur = cur->next;
4359 }
4360 #ifdef DEBUG_INTERLEAVE
4361 xmlGenericError(xmlGenericErrorContext, " %d groups\n", nbgroups);
4362 #endif
4363
4364 /*
4365 * Let's check that all rules makes a partitions according to 7.4
4366 */
4367 partitions = (xmlRelaxNGPartitionPtr)
4368 xmlMalloc(sizeof(xmlRelaxNGPartition));
4369 if (partitions == NULL)
4370 goto error;
4371 memset(partitions, 0, sizeof(xmlRelaxNGPartition));
4372 partitions->nbgroups = nbgroups;
4373 partitions->triage = xmlHashCreate(nbgroups);
4374 for (i = 0; i < nbgroups; i++) {
4375 group = groups[i];
4376 for (j = i + 1; j < nbgroups; j++) {
4377 if (groups[j] == NULL)
4378 continue;
4379
4380 ret = xmlRelaxNGCompareElemDefLists(ctxt, group->defs,
4381 groups[j]->defs);
4382 if (ret == 0) {
4383 xmlRngPErr(ctxt, def->node, XML_RNGP_ELEM_TEXT_CONFLICT,
4384 "Element or text conflicts in interleave\n",
4385 NULL, NULL);
4386 }
4387 ret = xmlRelaxNGCompareElemDefLists(ctxt, group->attrs,
4388 groups[j]->attrs);
4389 if (ret == 0) {
4390 xmlRngPErr(ctxt, def->node, XML_RNGP_ATTR_CONFLICT,
4391 "Attributes conflicts in interleave\n", NULL,
4392 NULL);
4393 }
4394 }
4395 tmp = group->defs;
4396 if ((tmp != NULL) && (*tmp != NULL)) {
4397 while (*tmp != NULL) {
4398 if ((*tmp)->type == XML_RELAXNG_TEXT) {
4399 res = xmlHashAddEntry2(partitions->triage,
4400 BAD_CAST "#text", NULL,
4401 (void *) (long) (i + 1));
4402 if (res != 0)
4403 is_determinist = -1;
4404 } else if (((*tmp)->type == XML_RELAXNG_ELEMENT) &&
4405 ((*tmp)->name != NULL)) {
4406 if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
4407 res = xmlHashAddEntry2(partitions->triage,
4408 (*tmp)->name, NULL,
4409 (void *) (long) (i + 1));
4410 else
4411 res = xmlHashAddEntry2(partitions->triage,
4412 (*tmp)->name, (*tmp)->ns,
4413 (void *) (long) (i + 1));
4414 if (res != 0)
4415 is_determinist = -1;
4416 } else if ((*tmp)->type == XML_RELAXNG_ELEMENT) {
4417 if (((*tmp)->ns == NULL) || ((*tmp)->ns[0] == 0))
4418 res = xmlHashAddEntry2(partitions->triage,
4419 BAD_CAST "#any", NULL,
4420 (void *) (long) (i + 1));
4421 else
4422 res = xmlHashAddEntry2(partitions->triage,
4423 BAD_CAST "#any", (*tmp)->ns,
4424 (void *) (long) (i + 1));
4425 if ((*tmp)->nameClass != NULL)
4426 is_determinist = 2;
4427 if (res != 0)
4428 is_determinist = -1;
4429 } else {
4430 is_determinist = -1;
4431 }
4432 tmp++;
4433 }
4434 } else {
4435 is_determinist = 0;
4436 }
4437 }
4438 partitions->groups = groups;
4439
4440 /*
4441 * and save the partition list back in the def
4442 */
4443 def->data = partitions;
4444 if (is_mixed != 0)
4445 def->dflags |= IS_MIXED;
4446 if (is_determinist == 1)
4447 partitions->flags = IS_DETERMINIST;
4448 if (is_determinist == 2)
4449 partitions->flags = IS_DETERMINIST | IS_NEEDCHECK;
4450 return;
4451
4452 error:
4453 xmlRngPErrMemory(ctxt, "in interleave computation\n");
4454 if (groups != NULL) {
4455 for (i = 0; i < nbgroups; i++)
4456 if (groups[i] != NULL) {
4457 if (groups[i]->defs != NULL)
4458 xmlFree(groups[i]->defs);
4459 xmlFree(groups[i]);
4460 }
4461 xmlFree(groups);
4462 }
4463 xmlRelaxNGFreePartition(partitions);
4464 }
4465
4466 /**
4467 * xmlRelaxNGParseInterleave:
4468 * @ctxt: a Relax-NG parser context
4469 * @node: the data node.
4470 *
4471 * parse the content of a RelaxNG interleave node.
4472 *
4473 * Returns the definition pointer or NULL in case of error
4474 */
4475 static xmlRelaxNGDefinePtr
xmlRelaxNGParseInterleave(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)4476 xmlRelaxNGParseInterleave(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
4477 {
4478 xmlRelaxNGDefinePtr def = NULL;
4479 xmlRelaxNGDefinePtr last = NULL, cur;
4480 xmlNodePtr child;
4481
4482 def = xmlRelaxNGNewDefine(ctxt, node);
4483 if (def == NULL) {
4484 return (NULL);
4485 }
4486 def->type = XML_RELAXNG_INTERLEAVE;
4487
4488 if (ctxt->interleaves == NULL)
4489 ctxt->interleaves = xmlHashCreate(10);
4490 if (ctxt->interleaves == NULL) {
4491 xmlRngPErrMemory(ctxt, "create interleaves\n");
4492 } else {
4493 char name[32];
4494
4495 snprintf(name, 32, "interleave%d", ctxt->nbInterleaves++);
4496 if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST name, def) < 0) {
4497 xmlRngPErr(ctxt, node, XML_RNGP_INTERLEAVE_ADD,
4498 "Failed to add %s to hash table\n",
4499 (const xmlChar *) name, NULL);
4500 }
4501 }
4502 child = node->children;
4503 if (child == NULL) {
4504 xmlRngPErr(ctxt, node, XML_RNGP_INTERLEAVE_NO_CONTENT,
4505 "Element interleave is empty\n", NULL, NULL);
4506 }
4507 while (child != NULL) {
4508 if (IS_RELAXNG(child, "element")) {
4509 cur = xmlRelaxNGParseElement(ctxt, child);
4510 } else {
4511 cur = xmlRelaxNGParsePattern(ctxt, child);
4512 }
4513 if (cur != NULL) {
4514 cur->parent = def;
4515 if (last == NULL) {
4516 def->content = last = cur;
4517 } else {
4518 last->next = cur;
4519 last = cur;
4520 }
4521 }
4522 child = child->next;
4523 }
4524
4525 return (def);
4526 }
4527
4528 /**
4529 * xmlRelaxNGParseInclude:
4530 * @ctxt: a Relax-NG parser context
4531 * @node: the include node
4532 *
4533 * Integrate the content of an include node in the current grammar
4534 *
4535 * Returns 0 in case of success or -1 in case of error
4536 */
4537 static int
xmlRelaxNGParseInclude(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)4538 xmlRelaxNGParseInclude(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
4539 {
4540 xmlRelaxNGIncludePtr incl;
4541 xmlNodePtr root;
4542 int ret = 0, tmp;
4543
4544 incl = node->psvi;
4545 if (incl == NULL) {
4546 xmlRngPErr(ctxt, node, XML_RNGP_INCLUDE_EMPTY,
4547 "Include node has no data\n", NULL, NULL);
4548 return (-1);
4549 }
4550 root = xmlDocGetRootElement(incl->doc);
4551 if (root == NULL) {
4552 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY, "Include document is empty\n",
4553 NULL, NULL);
4554 return (-1);
4555 }
4556 if (!xmlStrEqual(root->name, BAD_CAST "grammar")) {
4557 xmlRngPErr(ctxt, node, XML_RNGP_GRAMMAR_MISSING,
4558 "Include document root is not a grammar\n", NULL, NULL);
4559 return (-1);
4560 }
4561
4562 /*
4563 * Merge the definition from both the include and the internal list
4564 */
4565 if (root->children != NULL) {
4566 tmp = xmlRelaxNGParseGrammarContent(ctxt, root->children);
4567 if (tmp != 0)
4568 ret = -1;
4569 }
4570 if (node->children != NULL) {
4571 tmp = xmlRelaxNGParseGrammarContent(ctxt, node->children);
4572 if (tmp != 0)
4573 ret = -1;
4574 }
4575 return (ret);
4576 }
4577
4578 /**
4579 * xmlRelaxNGParseDefine:
4580 * @ctxt: a Relax-NG parser context
4581 * @node: the define node
4582 *
4583 * parse the content of a RelaxNG define element node.
4584 *
4585 * Returns 0 in case of success or -1 in case of error
4586 */
4587 static int
xmlRelaxNGParseDefine(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)4588 xmlRelaxNGParseDefine(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
4589 {
4590 xmlChar *name;
4591 int ret = 0, tmp;
4592 xmlRelaxNGDefinePtr def;
4593 const xmlChar *olddefine;
4594
4595 name = xmlGetProp(node, BAD_CAST "name");
4596 if (name == NULL) {
4597 xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_NAME_MISSING,
4598 "define has no name\n", NULL, NULL);
4599 } else {
4600 xmlRelaxNGNormExtSpace(name);
4601 if (xmlValidateNCName(name, 0)) {
4602 xmlRngPErr(ctxt, node, XML_RNGP_INVALID_DEFINE_NAME,
4603 "define name '%s' is not an NCName\n", name, NULL);
4604 }
4605 def = xmlRelaxNGNewDefine(ctxt, node);
4606 if (def == NULL) {
4607 xmlFree(name);
4608 return (-1);
4609 }
4610 def->type = XML_RELAXNG_DEF;
4611 def->name = name;
4612 if (node->children == NULL) {
4613 xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_EMPTY,
4614 "define has no children\n", NULL, NULL);
4615 } else {
4616 olddefine = ctxt->define;
4617 ctxt->define = name;
4618 def->content =
4619 xmlRelaxNGParsePatterns(ctxt, node->children, 0);
4620 ctxt->define = olddefine;
4621 }
4622 if (ctxt->grammar->defs == NULL)
4623 ctxt->grammar->defs = xmlHashCreate(10);
4624 if (ctxt->grammar->defs == NULL) {
4625 xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_CREATE_FAILED,
4626 "Could not create definition hash\n", NULL, NULL);
4627 ret = -1;
4628 } else {
4629 tmp = xmlHashAddEntry(ctxt->grammar->defs, name, def);
4630 if (tmp < 0) {
4631 xmlRelaxNGDefinePtr prev;
4632
4633 prev = xmlHashLookup(ctxt->grammar->defs, name);
4634 if (prev == NULL) {
4635 xmlRngPErr(ctxt, node, XML_RNGP_DEFINE_CREATE_FAILED,
4636 "Internal error on define aggregation of %s\n",
4637 name, NULL);
4638 ret = -1;
4639 } else {
4640 while (prev->nextHash != NULL)
4641 prev = prev->nextHash;
4642 prev->nextHash = def;
4643 }
4644 }
4645 }
4646 }
4647 return (ret);
4648 }
4649
4650 /**
4651 * xmlRelaxNGParseImportRef:
4652 * @payload: the parser context
4653 * @data: the current grammar
4654 * @name: the reference name
4655 *
4656 * Import import one references into the current grammar
4657 */
4658 static void
xmlRelaxNGParseImportRef(void * payload,void * data,xmlChar * name)4659 xmlRelaxNGParseImportRef(void *payload, void *data, xmlChar *name) {
4660 xmlRelaxNGParserCtxtPtr ctxt = (xmlRelaxNGParserCtxtPtr) data;
4661 xmlRelaxNGDefinePtr def = (xmlRelaxNGDefinePtr) payload;
4662 int tmp;
4663
4664 def->dflags |= IS_EXTERNAL_REF;
4665
4666 tmp = xmlHashAddEntry(ctxt->grammar->refs, name, def);
4667 if (tmp < 0) {
4668 xmlRelaxNGDefinePtr prev;
4669
4670 prev = (xmlRelaxNGDefinePtr)
4671 xmlHashLookup(ctxt->grammar->refs, def->name);
4672 if (prev == NULL) {
4673 if (def->name != NULL) {
4674 xmlRngPErr(ctxt, NULL, XML_RNGP_REF_CREATE_FAILED,
4675 "Error refs definitions '%s'\n",
4676 def->name, NULL);
4677 } else {
4678 xmlRngPErr(ctxt, NULL, XML_RNGP_REF_CREATE_FAILED,
4679 "Error refs definitions\n",
4680 NULL, NULL);
4681 }
4682 } else {
4683 def->nextHash = prev->nextHash;
4684 prev->nextHash = def;
4685 }
4686 }
4687 }
4688
4689 /**
4690 * xmlRelaxNGParseImportRefs:
4691 * @ctxt: the parser context
4692 * @grammar: the sub grammar
4693 *
4694 * Import references from the subgrammar into the current grammar
4695 *
4696 * Returns 0 in case of success, -1 in case of failure
4697 */
4698 static int
xmlRelaxNGParseImportRefs(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGGrammarPtr grammar)4699 xmlRelaxNGParseImportRefs(xmlRelaxNGParserCtxtPtr ctxt,
4700 xmlRelaxNGGrammarPtr grammar) {
4701 if ((ctxt == NULL) || (grammar == NULL) || (ctxt->grammar == NULL))
4702 return(-1);
4703 if (grammar->refs == NULL)
4704 return(0);
4705 if (ctxt->grammar->refs == NULL)
4706 ctxt->grammar->refs = xmlHashCreate(10);
4707 if (ctxt->grammar->refs == NULL) {
4708 xmlRngPErr(ctxt, NULL, XML_RNGP_REF_CREATE_FAILED,
4709 "Could not create references hash\n", NULL, NULL);
4710 return(-1);
4711 }
4712 xmlHashScan(grammar->refs, xmlRelaxNGParseImportRef, ctxt);
4713 return(0);
4714 }
4715
4716 /**
4717 * xmlRelaxNGProcessExternalRef:
4718 * @ctxt: the parser context
4719 * @node: the externlRef node
4720 *
4721 * Process and compile an externlRef node
4722 *
4723 * Returns the xmlRelaxNGDefinePtr or NULL in case of error
4724 */
4725 static xmlRelaxNGDefinePtr
xmlRelaxNGProcessExternalRef(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)4726 xmlRelaxNGProcessExternalRef(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
4727 {
4728 xmlRelaxNGDocumentPtr docu;
4729 xmlNodePtr root, tmp;
4730 xmlChar *ns;
4731 int newNs = 0, oldflags;
4732 xmlRelaxNGDefinePtr def;
4733
4734 docu = node->psvi;
4735 if (docu != NULL) {
4736 def = xmlRelaxNGNewDefine(ctxt, node);
4737 if (def == NULL)
4738 return (NULL);
4739 def->type = XML_RELAXNG_EXTERNALREF;
4740
4741 if (docu->content == NULL) {
4742 /*
4743 * Then do the parsing for good
4744 */
4745 root = xmlDocGetRootElement(docu->doc);
4746 if (root == NULL) {
4747 xmlRngPErr(ctxt, node, XML_RNGP_EXTERNALREF_EMTPY,
4748 "xmlRelaxNGParse: %s is empty\n", ctxt->URL,
4749 NULL);
4750 return (NULL);
4751 }
4752 /*
4753 * ns transmission rules
4754 */
4755 ns = xmlGetProp(root, BAD_CAST "ns");
4756 if (ns == NULL) {
4757 tmp = node;
4758 while ((tmp != NULL) && (tmp->type == XML_ELEMENT_NODE)) {
4759 ns = xmlGetProp(tmp, BAD_CAST "ns");
4760 if (ns != NULL) {
4761 break;
4762 }
4763 tmp = tmp->parent;
4764 }
4765 if (ns != NULL) {
4766 xmlSetProp(root, BAD_CAST "ns", ns);
4767 newNs = 1;
4768 xmlFree(ns);
4769 }
4770 } else {
4771 xmlFree(ns);
4772 }
4773
4774 /*
4775 * Parsing to get a precompiled schemas.
4776 */
4777 oldflags = ctxt->flags;
4778 ctxt->flags |= XML_RELAXNG_IN_EXTERNALREF;
4779 docu->schema = xmlRelaxNGParseDocument(ctxt, root);
4780 ctxt->flags = oldflags;
4781 if ((docu->schema != NULL) &&
4782 (docu->schema->topgrammar != NULL)) {
4783 docu->content = docu->schema->topgrammar->start;
4784 if (docu->schema->topgrammar->refs)
4785 xmlRelaxNGParseImportRefs(ctxt, docu->schema->topgrammar);
4786 }
4787
4788 /*
4789 * the externalRef may be reused in a different ns context
4790 */
4791 if (newNs == 1) {
4792 xmlUnsetProp(root, BAD_CAST "ns");
4793 }
4794 }
4795 def->content = docu->content;
4796 } else {
4797 def = NULL;
4798 }
4799 return (def);
4800 }
4801
4802 /**
4803 * xmlRelaxNGParsePattern:
4804 * @ctxt: a Relax-NG parser context
4805 * @node: the pattern node.
4806 *
4807 * parse the content of a RelaxNG pattern node.
4808 *
4809 * Returns the definition pointer or NULL in case of error or if no
4810 * pattern is generated.
4811 */
4812 static xmlRelaxNGDefinePtr
xmlRelaxNGParsePattern(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)4813 xmlRelaxNGParsePattern(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
4814 {
4815 xmlRelaxNGDefinePtr def = NULL;
4816
4817 if (node == NULL) {
4818 return (NULL);
4819 }
4820 if (IS_RELAXNG(node, "element")) {
4821 def = xmlRelaxNGParseElement(ctxt, node);
4822 } else if (IS_RELAXNG(node, "attribute")) {
4823 def = xmlRelaxNGParseAttribute(ctxt, node);
4824 } else if (IS_RELAXNG(node, "empty")) {
4825 def = xmlRelaxNGNewDefine(ctxt, node);
4826 if (def == NULL)
4827 return (NULL);
4828 def->type = XML_RELAXNG_EMPTY;
4829 if (node->children != NULL) {
4830 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_NOT_EMPTY,
4831 "empty: had a child node\n", NULL, NULL);
4832 }
4833 } else if (IS_RELAXNG(node, "text")) {
4834 def = xmlRelaxNGNewDefine(ctxt, node);
4835 if (def == NULL)
4836 return (NULL);
4837 def->type = XML_RELAXNG_TEXT;
4838 if (node->children != NULL) {
4839 xmlRngPErr(ctxt, node, XML_RNGP_TEXT_HAS_CHILD,
4840 "text: had a child node\n", NULL, NULL);
4841 }
4842 } else if (IS_RELAXNG(node, "zeroOrMore")) {
4843 def = xmlRelaxNGNewDefine(ctxt, node);
4844 if (def == NULL)
4845 return (NULL);
4846 def->type = XML_RELAXNG_ZEROORMORE;
4847 if (node->children == NULL) {
4848 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4849 "Element %s is empty\n", node->name, NULL);
4850 } else {
4851 def->content =
4852 xmlRelaxNGParsePatterns(ctxt, node->children, 1);
4853 }
4854 } else if (IS_RELAXNG(node, "oneOrMore")) {
4855 def = xmlRelaxNGNewDefine(ctxt, node);
4856 if (def == NULL)
4857 return (NULL);
4858 def->type = XML_RELAXNG_ONEORMORE;
4859 if (node->children == NULL) {
4860 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4861 "Element %s is empty\n", node->name, NULL);
4862 } else {
4863 def->content =
4864 xmlRelaxNGParsePatterns(ctxt, node->children, 1);
4865 }
4866 } else if (IS_RELAXNG(node, "optional")) {
4867 def = xmlRelaxNGNewDefine(ctxt, node);
4868 if (def == NULL)
4869 return (NULL);
4870 def->type = XML_RELAXNG_OPTIONAL;
4871 if (node->children == NULL) {
4872 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4873 "Element %s is empty\n", node->name, NULL);
4874 } else {
4875 def->content =
4876 xmlRelaxNGParsePatterns(ctxt, node->children, 1);
4877 }
4878 } else if (IS_RELAXNG(node, "choice")) {
4879 def = xmlRelaxNGNewDefine(ctxt, node);
4880 if (def == NULL)
4881 return (NULL);
4882 def->type = XML_RELAXNG_CHOICE;
4883 if (node->children == NULL) {
4884 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4885 "Element %s is empty\n", node->name, NULL);
4886 } else {
4887 def->content =
4888 xmlRelaxNGParsePatterns(ctxt, node->children, 0);
4889 }
4890 } else if (IS_RELAXNG(node, "group")) {
4891 def = xmlRelaxNGNewDefine(ctxt, node);
4892 if (def == NULL)
4893 return (NULL);
4894 def->type = XML_RELAXNG_GROUP;
4895 if (node->children == NULL) {
4896 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4897 "Element %s is empty\n", node->name, NULL);
4898 } else {
4899 def->content =
4900 xmlRelaxNGParsePatterns(ctxt, node->children, 0);
4901 }
4902 } else if (IS_RELAXNG(node, "ref")) {
4903 def = xmlRelaxNGNewDefine(ctxt, node);
4904 if (def == NULL)
4905 return (NULL);
4906 def->type = XML_RELAXNG_REF;
4907 def->name = xmlGetProp(node, BAD_CAST "name");
4908 if (def->name == NULL) {
4909 xmlRngPErr(ctxt, node, XML_RNGP_REF_NO_NAME, "ref has no name\n",
4910 NULL, NULL);
4911 } else {
4912 xmlRelaxNGNormExtSpace(def->name);
4913 if (xmlValidateNCName(def->name, 0)) {
4914 xmlRngPErr(ctxt, node, XML_RNGP_REF_NAME_INVALID,
4915 "ref name '%s' is not an NCName\n", def->name,
4916 NULL);
4917 }
4918 }
4919 if (node->children != NULL) {
4920 xmlRngPErr(ctxt, node, XML_RNGP_REF_NOT_EMPTY, "ref is not empty\n",
4921 NULL, NULL);
4922 }
4923 if (ctxt->grammar->refs == NULL)
4924 ctxt->grammar->refs = xmlHashCreate(10);
4925 if (ctxt->grammar->refs == NULL) {
4926 xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
4927 "Could not create references hash\n", NULL, NULL);
4928 def = NULL;
4929 } else {
4930 int tmp;
4931
4932 tmp = xmlHashAddEntry(ctxt->grammar->refs, def->name, def);
4933 if (tmp < 0) {
4934 xmlRelaxNGDefinePtr prev;
4935
4936 prev = (xmlRelaxNGDefinePtr)
4937 xmlHashLookup(ctxt->grammar->refs, def->name);
4938 if (prev == NULL) {
4939 if (def->name != NULL) {
4940 xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
4941 "Error refs definitions '%s'\n",
4942 def->name, NULL);
4943 } else {
4944 xmlRngPErr(ctxt, node, XML_RNGP_REF_CREATE_FAILED,
4945 "Error refs definitions\n",
4946 NULL, NULL);
4947 }
4948 def = NULL;
4949 } else {
4950 def->nextHash = prev->nextHash;
4951 prev->nextHash = def;
4952 }
4953 }
4954 }
4955 } else if (IS_RELAXNG(node, "data")) {
4956 def = xmlRelaxNGParseData(ctxt, node);
4957 } else if (IS_RELAXNG(node, "value")) {
4958 def = xmlRelaxNGParseValue(ctxt, node);
4959 } else if (IS_RELAXNG(node, "list")) {
4960 def = xmlRelaxNGNewDefine(ctxt, node);
4961 if (def == NULL)
4962 return (NULL);
4963 def->type = XML_RELAXNG_LIST;
4964 if (node->children == NULL) {
4965 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT,
4966 "Element %s is empty\n", node->name, NULL);
4967 } else {
4968 def->content =
4969 xmlRelaxNGParsePatterns(ctxt, node->children, 0);
4970 }
4971 } else if (IS_RELAXNG(node, "interleave")) {
4972 def = xmlRelaxNGParseInterleave(ctxt, node);
4973 } else if (IS_RELAXNG(node, "externalRef")) {
4974 def = xmlRelaxNGProcessExternalRef(ctxt, node);
4975 } else if (IS_RELAXNG(node, "notAllowed")) {
4976 def = xmlRelaxNGNewDefine(ctxt, node);
4977 if (def == NULL)
4978 return (NULL);
4979 def->type = XML_RELAXNG_NOT_ALLOWED;
4980 if (node->children != NULL) {
4981 xmlRngPErr(ctxt, node, XML_RNGP_NOTALLOWED_NOT_EMPTY,
4982 "xmlRelaxNGParse: notAllowed element is not empty\n",
4983 NULL, NULL);
4984 }
4985 } else if (IS_RELAXNG(node, "grammar")) {
4986 xmlRelaxNGGrammarPtr grammar, old;
4987 xmlRelaxNGGrammarPtr oldparent;
4988
4989 #ifdef DEBUG_GRAMMAR
4990 xmlGenericError(xmlGenericErrorContext,
4991 "Found <grammar> pattern\n");
4992 #endif
4993
4994 oldparent = ctxt->parentgrammar;
4995 old = ctxt->grammar;
4996 ctxt->parentgrammar = old;
4997 grammar = xmlRelaxNGParseGrammar(ctxt, node->children);
4998 if (old != NULL) {
4999 ctxt->grammar = old;
5000 ctxt->parentgrammar = oldparent;
5001 #if 0
5002 if (grammar != NULL) {
5003 grammar->next = old->next;
5004 old->next = grammar;
5005 }
5006 #endif
5007 }
5008 if (grammar != NULL)
5009 def = grammar->start;
5010 else
5011 def = NULL;
5012 } else if (IS_RELAXNG(node, "parentRef")) {
5013 if (ctxt->parentgrammar == NULL) {
5014 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NO_PARENT,
5015 "Use of parentRef without a parent grammar\n", NULL,
5016 NULL);
5017 return (NULL);
5018 }
5019 def = xmlRelaxNGNewDefine(ctxt, node);
5020 if (def == NULL)
5021 return (NULL);
5022 def->type = XML_RELAXNG_PARENTREF;
5023 def->name = xmlGetProp(node, BAD_CAST "name");
5024 if (def->name == NULL) {
5025 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NO_NAME,
5026 "parentRef has no name\n", NULL, NULL);
5027 } else {
5028 xmlRelaxNGNormExtSpace(def->name);
5029 if (xmlValidateNCName(def->name, 0)) {
5030 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NAME_INVALID,
5031 "parentRef name '%s' is not an NCName\n",
5032 def->name, NULL);
5033 }
5034 }
5035 if (node->children != NULL) {
5036 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_NOT_EMPTY,
5037 "parentRef is not empty\n", NULL, NULL);
5038 }
5039 if (ctxt->parentgrammar->refs == NULL)
5040 ctxt->parentgrammar->refs = xmlHashCreate(10);
5041 if (ctxt->parentgrammar->refs == NULL) {
5042 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_CREATE_FAILED,
5043 "Could not create references hash\n", NULL, NULL);
5044 def = NULL;
5045 } else if (def->name != NULL) {
5046 int tmp;
5047
5048 tmp =
5049 xmlHashAddEntry(ctxt->parentgrammar->refs, def->name, def);
5050 if (tmp < 0) {
5051 xmlRelaxNGDefinePtr prev;
5052
5053 prev = (xmlRelaxNGDefinePtr)
5054 xmlHashLookup(ctxt->parentgrammar->refs, def->name);
5055 if (prev == NULL) {
5056 xmlRngPErr(ctxt, node, XML_RNGP_PARENTREF_CREATE_FAILED,
5057 "Internal error parentRef definitions '%s'\n",
5058 def->name, NULL);
5059 def = NULL;
5060 } else {
5061 def->nextHash = prev->nextHash;
5062 prev->nextHash = def;
5063 }
5064 }
5065 }
5066 } else if (IS_RELAXNG(node, "mixed")) {
5067 if (node->children == NULL) {
5068 xmlRngPErr(ctxt, node, XML_RNGP_EMPTY_CONSTRUCT, "Mixed is empty\n",
5069 NULL, NULL);
5070 def = NULL;
5071 } else {
5072 def = xmlRelaxNGParseInterleave(ctxt, node);
5073 if (def != NULL) {
5074 xmlRelaxNGDefinePtr tmp;
5075
5076 if ((def->content != NULL) && (def->content->next != NULL)) {
5077 tmp = xmlRelaxNGNewDefine(ctxt, node);
5078 if (tmp != NULL) {
5079 tmp->type = XML_RELAXNG_GROUP;
5080 tmp->content = def->content;
5081 def->content = tmp;
5082 }
5083 }
5084
5085 tmp = xmlRelaxNGNewDefine(ctxt, node);
5086 if (tmp == NULL)
5087 return (def);
5088 tmp->type = XML_RELAXNG_TEXT;
5089 tmp->next = def->content;
5090 def->content = tmp;
5091 }
5092 }
5093 } else {
5094 xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_CONSTRUCT,
5095 "Unexpected node %s is not a pattern\n", node->name,
5096 NULL);
5097 def = NULL;
5098 }
5099 return (def);
5100 }
5101
5102 /**
5103 * xmlRelaxNGParseAttribute:
5104 * @ctxt: a Relax-NG parser context
5105 * @node: the element node
5106 *
5107 * parse the content of a RelaxNG attribute node.
5108 *
5109 * Returns the definition pointer or NULL in case of error.
5110 */
5111 static xmlRelaxNGDefinePtr
xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)5112 xmlRelaxNGParseAttribute(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
5113 {
5114 xmlRelaxNGDefinePtr ret, cur;
5115 xmlNodePtr child;
5116 int old_flags;
5117
5118 ret = xmlRelaxNGNewDefine(ctxt, node);
5119 if (ret == NULL)
5120 return (NULL);
5121 ret->type = XML_RELAXNG_ATTRIBUTE;
5122 ret->parent = ctxt->def;
5123 child = node->children;
5124 if (child == NULL) {
5125 xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_EMPTY,
5126 "xmlRelaxNGParseattribute: attribute has no children\n",
5127 NULL, NULL);
5128 return (ret);
5129 }
5130 old_flags = ctxt->flags;
5131 ctxt->flags |= XML_RELAXNG_IN_ATTRIBUTE;
5132 cur = xmlRelaxNGParseNameClass(ctxt, child, ret);
5133 if (cur != NULL)
5134 child = child->next;
5135
5136 if (child != NULL) {
5137 cur = xmlRelaxNGParsePattern(ctxt, child);
5138 if (cur != NULL) {
5139 switch (cur->type) {
5140 case XML_RELAXNG_EMPTY:
5141 case XML_RELAXNG_NOT_ALLOWED:
5142 case XML_RELAXNG_TEXT:
5143 case XML_RELAXNG_ELEMENT:
5144 case XML_RELAXNG_DATATYPE:
5145 case XML_RELAXNG_VALUE:
5146 case XML_RELAXNG_LIST:
5147 case XML_RELAXNG_REF:
5148 case XML_RELAXNG_PARENTREF:
5149 case XML_RELAXNG_EXTERNALREF:
5150 case XML_RELAXNG_DEF:
5151 case XML_RELAXNG_ONEORMORE:
5152 case XML_RELAXNG_ZEROORMORE:
5153 case XML_RELAXNG_OPTIONAL:
5154 case XML_RELAXNG_CHOICE:
5155 case XML_RELAXNG_GROUP:
5156 case XML_RELAXNG_INTERLEAVE:
5157 case XML_RELAXNG_ATTRIBUTE:
5158 ret->content = cur;
5159 cur->parent = ret;
5160 break;
5161 case XML_RELAXNG_START:
5162 case XML_RELAXNG_PARAM:
5163 case XML_RELAXNG_EXCEPT:
5164 xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_CONTENT,
5165 "attribute has invalid content\n", NULL,
5166 NULL);
5167 break;
5168 case XML_RELAXNG_NOOP:
5169 xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_NOOP,
5170 "RNG Internal error, noop found in attribute\n",
5171 NULL, NULL);
5172 break;
5173 }
5174 }
5175 child = child->next;
5176 }
5177 if (child != NULL) {
5178 xmlRngPErr(ctxt, node, XML_RNGP_ATTRIBUTE_CHILDREN,
5179 "attribute has multiple children\n", NULL, NULL);
5180 }
5181 ctxt->flags = old_flags;
5182 return (ret);
5183 }
5184
5185 /**
5186 * xmlRelaxNGParseExceptNameClass:
5187 * @ctxt: a Relax-NG parser context
5188 * @node: the except node
5189 * @attr: 1 if within an attribute, 0 if within an element
5190 *
5191 * parse the content of a RelaxNG nameClass node.
5192 *
5193 * Returns the definition pointer or NULL in case of error.
5194 */
5195 static xmlRelaxNGDefinePtr
xmlRelaxNGParseExceptNameClass(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node,int attr)5196 xmlRelaxNGParseExceptNameClass(xmlRelaxNGParserCtxtPtr ctxt,
5197 xmlNodePtr node, int attr)
5198 {
5199 xmlRelaxNGDefinePtr ret, cur, last = NULL;
5200 xmlNodePtr child;
5201
5202 if (!IS_RELAXNG(node, "except")) {
5203 xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_MISSING,
5204 "Expecting an except node\n", NULL, NULL);
5205 return (NULL);
5206 }
5207 if (node->next != NULL) {
5208 xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_MULTIPLE,
5209 "exceptNameClass allows only a single except node\n",
5210 NULL, NULL);
5211 }
5212 if (node->children == NULL) {
5213 xmlRngPErr(ctxt, node, XML_RNGP_EXCEPT_EMPTY, "except has no content\n",
5214 NULL, NULL);
5215 return (NULL);
5216 }
5217
5218 ret = xmlRelaxNGNewDefine(ctxt, node);
5219 if (ret == NULL)
5220 return (NULL);
5221 ret->type = XML_RELAXNG_EXCEPT;
5222 child = node->children;
5223 while (child != NULL) {
5224 cur = xmlRelaxNGNewDefine(ctxt, child);
5225 if (cur == NULL)
5226 break;
5227 if (attr)
5228 cur->type = XML_RELAXNG_ATTRIBUTE;
5229 else
5230 cur->type = XML_RELAXNG_ELEMENT;
5231
5232 if (xmlRelaxNGParseNameClass(ctxt, child, cur) != NULL) {
5233 if (last == NULL) {
5234 ret->content = cur;
5235 } else {
5236 last->next = cur;
5237 }
5238 last = cur;
5239 }
5240 child = child->next;
5241 }
5242
5243 return (ret);
5244 }
5245
5246 /**
5247 * xmlRelaxNGParseNameClass:
5248 * @ctxt: a Relax-NG parser context
5249 * @node: the nameClass node
5250 * @def: the current definition
5251 *
5252 * parse the content of a RelaxNG nameClass node.
5253 *
5254 * Returns the definition pointer or NULL in case of error.
5255 */
5256 static xmlRelaxNGDefinePtr
xmlRelaxNGParseNameClass(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node,xmlRelaxNGDefinePtr def)5257 xmlRelaxNGParseNameClass(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node,
5258 xmlRelaxNGDefinePtr def)
5259 {
5260 xmlRelaxNGDefinePtr ret, tmp;
5261 xmlChar *val;
5262
5263 ret = def;
5264 if ((IS_RELAXNG(node, "name")) || (IS_RELAXNG(node, "anyName")) ||
5265 (IS_RELAXNG(node, "nsName"))) {
5266 if ((def->type != XML_RELAXNG_ELEMENT) &&
5267 (def->type != XML_RELAXNG_ATTRIBUTE)) {
5268 ret = xmlRelaxNGNewDefine(ctxt, node);
5269 if (ret == NULL)
5270 return (NULL);
5271 ret->parent = def;
5272 if (ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE)
5273 ret->type = XML_RELAXNG_ATTRIBUTE;
5274 else
5275 ret->type = XML_RELAXNG_ELEMENT;
5276 }
5277 }
5278 if (IS_RELAXNG(node, "name")) {
5279 val = xmlNodeGetContent(node);
5280 xmlRelaxNGNormExtSpace(val);
5281 if (xmlValidateNCName(val, 0)) {
5282 if (node->parent != NULL)
5283 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NAME,
5284 "Element %s name '%s' is not an NCName\n",
5285 node->parent->name, val);
5286 else
5287 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NAME,
5288 "name '%s' is not an NCName\n",
5289 val, NULL);
5290 }
5291 ret->name = val;
5292 val = xmlGetProp(node, BAD_CAST "ns");
5293 ret->ns = val;
5294 if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
5295 (val != NULL) &&
5296 (xmlStrEqual(val, BAD_CAST "http://www.w3.org/2000/xmlns"))) {
5297 xmlRngPErr(ctxt, node, XML_RNGP_XML_NS,
5298 "Attribute with namespace '%s' is not allowed\n",
5299 val, NULL);
5300 }
5301 if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
5302 (val != NULL) &&
5303 (val[0] == 0) && (xmlStrEqual(ret->name, BAD_CAST "xmlns"))) {
5304 xmlRngPErr(ctxt, node, XML_RNGP_XMLNS_NAME,
5305 "Attribute with QName 'xmlns' is not allowed\n",
5306 val, NULL);
5307 }
5308 } else if (IS_RELAXNG(node, "anyName")) {
5309 ret->name = NULL;
5310 ret->ns = NULL;
5311 if (node->children != NULL) {
5312 ret->nameClass =
5313 xmlRelaxNGParseExceptNameClass(ctxt, node->children,
5314 (def->type ==
5315 XML_RELAXNG_ATTRIBUTE));
5316 }
5317 } else if (IS_RELAXNG(node, "nsName")) {
5318 ret->name = NULL;
5319 ret->ns = xmlGetProp(node, BAD_CAST "ns");
5320 if (ret->ns == NULL) {
5321 xmlRngPErr(ctxt, node, XML_RNGP_NSNAME_NO_NS,
5322 "nsName has no ns attribute\n", NULL, NULL);
5323 }
5324 if ((ctxt->flags & XML_RELAXNG_IN_ATTRIBUTE) &&
5325 (ret->ns != NULL) &&
5326 (xmlStrEqual
5327 (ret->ns, BAD_CAST "http://www.w3.org/2000/xmlns"))) {
5328 xmlRngPErr(ctxt, node, XML_RNGP_XML_NS,
5329 "Attribute with namespace '%s' is not allowed\n",
5330 ret->ns, NULL);
5331 }
5332 if (node->children != NULL) {
5333 ret->nameClass =
5334 xmlRelaxNGParseExceptNameClass(ctxt, node->children,
5335 (def->type ==
5336 XML_RELAXNG_ATTRIBUTE));
5337 }
5338 } else if (IS_RELAXNG(node, "choice")) {
5339 xmlNodePtr child;
5340 xmlRelaxNGDefinePtr last = NULL;
5341
5342 ret = xmlRelaxNGNewDefine(ctxt, node);
5343 if (ret == NULL)
5344 return (NULL);
5345 ret->parent = def;
5346 ret->type = XML_RELAXNG_CHOICE;
5347
5348 if (node->children == NULL) {
5349 xmlRngPErr(ctxt, node, XML_RNGP_CHOICE_EMPTY,
5350 "Element choice is empty\n", NULL, NULL);
5351 } else {
5352
5353 child = node->children;
5354 while (child != NULL) {
5355 tmp = xmlRelaxNGParseNameClass(ctxt, child, ret);
5356 if (tmp != NULL) {
5357 if (last == NULL) {
5358 last = ret->nameClass = tmp;
5359 } else {
5360 last->next = tmp;
5361 last = tmp;
5362 }
5363 }
5364 child = child->next;
5365 }
5366 }
5367 } else {
5368 xmlRngPErr(ctxt, node, XML_RNGP_CHOICE_CONTENT,
5369 "expecting name, anyName, nsName or choice : got %s\n",
5370 (node == NULL ? (const xmlChar *) "nothing" : node->name),
5371 NULL);
5372 return (NULL);
5373 }
5374 if (ret != def) {
5375 if (def->nameClass == NULL) {
5376 def->nameClass = ret;
5377 } else {
5378 tmp = def->nameClass;
5379 while (tmp->next != NULL) {
5380 tmp = tmp->next;
5381 }
5382 tmp->next = ret;
5383 }
5384 }
5385 return (ret);
5386 }
5387
5388 /**
5389 * xmlRelaxNGParseElement:
5390 * @ctxt: a Relax-NG parser context
5391 * @node: the element node
5392 *
5393 * parse the content of a RelaxNG element node.
5394 *
5395 * Returns the definition pointer or NULL in case of error.
5396 */
5397 static xmlRelaxNGDefinePtr
xmlRelaxNGParseElement(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)5398 xmlRelaxNGParseElement(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
5399 {
5400 xmlRelaxNGDefinePtr ret, cur, last;
5401 xmlNodePtr child;
5402 const xmlChar *olddefine;
5403
5404 ret = xmlRelaxNGNewDefine(ctxt, node);
5405 if (ret == NULL)
5406 return (NULL);
5407 ret->type = XML_RELAXNG_ELEMENT;
5408 ret->parent = ctxt->def;
5409 child = node->children;
5410 if (child == NULL) {
5411 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_EMPTY,
5412 "xmlRelaxNGParseElement: element has no children\n",
5413 NULL, NULL);
5414 return (ret);
5415 }
5416 cur = xmlRelaxNGParseNameClass(ctxt, child, ret);
5417 if (cur != NULL)
5418 child = child->next;
5419
5420 if (child == NULL) {
5421 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_NO_CONTENT,
5422 "xmlRelaxNGParseElement: element has no content\n",
5423 NULL, NULL);
5424 return (ret);
5425 }
5426 olddefine = ctxt->define;
5427 ctxt->define = NULL;
5428 last = NULL;
5429 while (child != NULL) {
5430 cur = xmlRelaxNGParsePattern(ctxt, child);
5431 if (cur != NULL) {
5432 cur->parent = ret;
5433 switch (cur->type) {
5434 case XML_RELAXNG_EMPTY:
5435 case XML_RELAXNG_NOT_ALLOWED:
5436 case XML_RELAXNG_TEXT:
5437 case XML_RELAXNG_ELEMENT:
5438 case XML_RELAXNG_DATATYPE:
5439 case XML_RELAXNG_VALUE:
5440 case XML_RELAXNG_LIST:
5441 case XML_RELAXNG_REF:
5442 case XML_RELAXNG_PARENTREF:
5443 case XML_RELAXNG_EXTERNALREF:
5444 case XML_RELAXNG_DEF:
5445 case XML_RELAXNG_ZEROORMORE:
5446 case XML_RELAXNG_ONEORMORE:
5447 case XML_RELAXNG_OPTIONAL:
5448 case XML_RELAXNG_CHOICE:
5449 case XML_RELAXNG_GROUP:
5450 case XML_RELAXNG_INTERLEAVE:
5451 if (last == NULL) {
5452 ret->content = last = cur;
5453 } else {
5454 if ((last->type == XML_RELAXNG_ELEMENT) &&
5455 (ret->content == last)) {
5456 ret->content = xmlRelaxNGNewDefine(ctxt, node);
5457 if (ret->content != NULL) {
5458 ret->content->type = XML_RELAXNG_GROUP;
5459 ret->content->content = last;
5460 } else {
5461 ret->content = last;
5462 }
5463 }
5464 last->next = cur;
5465 last = cur;
5466 }
5467 break;
5468 case XML_RELAXNG_ATTRIBUTE:
5469 cur->next = ret->attrs;
5470 ret->attrs = cur;
5471 break;
5472 case XML_RELAXNG_START:
5473 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
5474 "RNG Internal error, start found in element\n",
5475 NULL, NULL);
5476 break;
5477 case XML_RELAXNG_PARAM:
5478 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
5479 "RNG Internal error, param found in element\n",
5480 NULL, NULL);
5481 break;
5482 case XML_RELAXNG_EXCEPT:
5483 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
5484 "RNG Internal error, except found in element\n",
5485 NULL, NULL);
5486 break;
5487 case XML_RELAXNG_NOOP:
5488 xmlRngPErr(ctxt, node, XML_RNGP_ELEMENT_CONTENT,
5489 "RNG Internal error, noop found in element\n",
5490 NULL, NULL);
5491 break;
5492 }
5493 }
5494 child = child->next;
5495 }
5496 ctxt->define = olddefine;
5497 return (ret);
5498 }
5499
5500 /**
5501 * xmlRelaxNGParsePatterns:
5502 * @ctxt: a Relax-NG parser context
5503 * @nodes: list of nodes
5504 * @group: use an implicit <group> for elements
5505 *
5506 * parse the content of a RelaxNG start node.
5507 *
5508 * Returns the definition pointer or NULL in case of error.
5509 */
5510 static xmlRelaxNGDefinePtr
xmlRelaxNGParsePatterns(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr nodes,int group)5511 xmlRelaxNGParsePatterns(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes,
5512 int group)
5513 {
5514 xmlRelaxNGDefinePtr def = NULL, last = NULL, cur, parent;
5515
5516 parent = ctxt->def;
5517 while (nodes != NULL) {
5518 if (IS_RELAXNG(nodes, "element")) {
5519 cur = xmlRelaxNGParseElement(ctxt, nodes);
5520 if (def == NULL) {
5521 def = last = cur;
5522 } else {
5523 if ((group == 1) && (def->type == XML_RELAXNG_ELEMENT) &&
5524 (def == last)) {
5525 def = xmlRelaxNGNewDefine(ctxt, nodes);
5526 def->type = XML_RELAXNG_GROUP;
5527 def->content = last;
5528 }
5529 last->next = cur;
5530 last = cur;
5531 }
5532 cur->parent = parent;
5533 } else {
5534 cur = xmlRelaxNGParsePattern(ctxt, nodes);
5535 if (cur != NULL) {
5536 if (def == NULL) {
5537 def = last = cur;
5538 } else {
5539 last->next = cur;
5540 last = cur;
5541 }
5542 }
5543 }
5544 nodes = nodes->next;
5545 }
5546 return (def);
5547 }
5548
5549 /**
5550 * xmlRelaxNGParseStart:
5551 * @ctxt: a Relax-NG parser context
5552 * @nodes: start children nodes
5553 *
5554 * parse the content of a RelaxNG start node.
5555 *
5556 * Returns 0 in case of success, -1 in case of error
5557 */
5558 static int
xmlRelaxNGParseStart(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr nodes)5559 xmlRelaxNGParseStart(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes)
5560 {
5561 int ret = 0;
5562 xmlRelaxNGDefinePtr def = NULL, last;
5563
5564 if (nodes == NULL) {
5565 xmlRngPErr(ctxt, nodes, XML_RNGP_START_EMPTY, "start has no children\n",
5566 NULL, NULL);
5567 return (-1);
5568 }
5569 if (IS_RELAXNG(nodes, "empty")) {
5570 def = xmlRelaxNGNewDefine(ctxt, nodes);
5571 if (def == NULL)
5572 return (-1);
5573 def->type = XML_RELAXNG_EMPTY;
5574 if (nodes->children != NULL) {
5575 xmlRngPErr(ctxt, nodes, XML_RNGP_EMPTY_CONTENT,
5576 "element empty is not empty\n", NULL, NULL);
5577 }
5578 } else if (IS_RELAXNG(nodes, "notAllowed")) {
5579 def = xmlRelaxNGNewDefine(ctxt, nodes);
5580 if (def == NULL)
5581 return (-1);
5582 def->type = XML_RELAXNG_NOT_ALLOWED;
5583 if (nodes->children != NULL) {
5584 xmlRngPErr(ctxt, nodes, XML_RNGP_NOTALLOWED_NOT_EMPTY,
5585 "element notAllowed is not empty\n", NULL, NULL);
5586 }
5587 } else {
5588 def = xmlRelaxNGParsePatterns(ctxt, nodes, 1);
5589 }
5590 if (ctxt->grammar->start != NULL) {
5591 last = ctxt->grammar->start;
5592 while (last->next != NULL)
5593 last = last->next;
5594 last->next = def;
5595 } else {
5596 ctxt->grammar->start = def;
5597 }
5598 nodes = nodes->next;
5599 if (nodes != NULL) {
5600 xmlRngPErr(ctxt, nodes, XML_RNGP_START_CONTENT,
5601 "start more than one children\n", NULL, NULL);
5602 return (-1);
5603 }
5604 return (ret);
5605 }
5606
5607 /**
5608 * xmlRelaxNGParseGrammarContent:
5609 * @ctxt: a Relax-NG parser context
5610 * @nodes: grammar children nodes
5611 *
5612 * parse the content of a RelaxNG grammar node.
5613 *
5614 * Returns 0 in case of success, -1 in case of error
5615 */
5616 static int
xmlRelaxNGParseGrammarContent(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr nodes)5617 xmlRelaxNGParseGrammarContent(xmlRelaxNGParserCtxtPtr ctxt,
5618 xmlNodePtr nodes)
5619 {
5620 int ret = 0, tmp;
5621
5622 if (nodes == NULL) {
5623 xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_EMPTY,
5624 "grammar has no children\n", NULL, NULL);
5625 return (-1);
5626 }
5627 while (nodes != NULL) {
5628 if (IS_RELAXNG(nodes, "start")) {
5629 if (nodes->children == NULL) {
5630 xmlRngPErr(ctxt, nodes, XML_RNGP_START_EMPTY,
5631 "start has no children\n", NULL, NULL);
5632 } else {
5633 tmp = xmlRelaxNGParseStart(ctxt, nodes->children);
5634 if (tmp != 0)
5635 ret = -1;
5636 }
5637 } else if (IS_RELAXNG(nodes, "define")) {
5638 tmp = xmlRelaxNGParseDefine(ctxt, nodes);
5639 if (tmp != 0)
5640 ret = -1;
5641 } else if (IS_RELAXNG(nodes, "include")) {
5642 tmp = xmlRelaxNGParseInclude(ctxt, nodes);
5643 if (tmp != 0)
5644 ret = -1;
5645 } else {
5646 xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_CONTENT,
5647 "grammar has unexpected child %s\n", nodes->name,
5648 NULL);
5649 ret = -1;
5650 }
5651 nodes = nodes->next;
5652 }
5653 return (ret);
5654 }
5655
5656 /**
5657 * xmlRelaxNGCheckReference:
5658 * @ref: the ref
5659 * @ctxt: a Relax-NG parser context
5660 * @name: the name associated to the defines
5661 *
5662 * Applies the 4.17. combine attribute rule for all the define
5663 * element of a given grammar using the same name.
5664 */
5665 static void
xmlRelaxNGCheckReference(xmlRelaxNGDefinePtr ref,xmlRelaxNGParserCtxtPtr ctxt,const xmlChar * name)5666 xmlRelaxNGCheckReference(xmlRelaxNGDefinePtr ref,
5667 xmlRelaxNGParserCtxtPtr ctxt,
5668 const xmlChar * name)
5669 {
5670 xmlRelaxNGGrammarPtr grammar;
5671 xmlRelaxNGDefinePtr def, cur;
5672
5673 /*
5674 * Those rules don't apply to imported ref from xmlRelaxNGParseImportRef
5675 */
5676 if (ref->dflags & IS_EXTERNAL_REF)
5677 return;
5678
5679 grammar = ctxt->grammar;
5680 if (grammar == NULL) {
5681 xmlRngPErr(ctxt, ref->node, XML_ERR_INTERNAL_ERROR,
5682 "Internal error: no grammar in CheckReference %s\n",
5683 name, NULL);
5684 return;
5685 }
5686 if (ref->content != NULL) {
5687 xmlRngPErr(ctxt, ref->node, XML_ERR_INTERNAL_ERROR,
5688 "Internal error: reference has content in CheckReference %s\n",
5689 name, NULL);
5690 return;
5691 }
5692 if (grammar->defs != NULL) {
5693 def = xmlHashLookup(grammar->defs, name);
5694 if (def != NULL) {
5695 cur = ref;
5696 while (cur != NULL) {
5697 cur->content = def;
5698 cur = cur->nextHash;
5699 }
5700 } else {
5701 xmlRngPErr(ctxt, ref->node, XML_RNGP_REF_NO_DEF,
5702 "Reference %s has no matching definition\n", name,
5703 NULL);
5704 }
5705 } else {
5706 xmlRngPErr(ctxt, ref->node, XML_RNGP_REF_NO_DEF,
5707 "Reference %s has no matching definition\n", name,
5708 NULL);
5709 }
5710 }
5711
5712 /**
5713 * xmlRelaxNGCheckCombine:
5714 * @define: the define(s) list
5715 * @ctxt: a Relax-NG parser context
5716 * @name: the name associated to the defines
5717 *
5718 * Applies the 4.17. combine attribute rule for all the define
5719 * element of a given grammar using the same name.
5720 */
5721 static void
xmlRelaxNGCheckCombine(xmlRelaxNGDefinePtr define,xmlRelaxNGParserCtxtPtr ctxt,const xmlChar * name)5722 xmlRelaxNGCheckCombine(xmlRelaxNGDefinePtr define,
5723 xmlRelaxNGParserCtxtPtr ctxt, const xmlChar * name)
5724 {
5725 xmlChar *combine;
5726 int choiceOrInterleave = -1;
5727 int missing = 0;
5728 xmlRelaxNGDefinePtr cur, last, tmp, tmp2;
5729
5730 if (define->nextHash == NULL)
5731 return;
5732 cur = define;
5733 while (cur != NULL) {
5734 combine = xmlGetProp(cur->node, BAD_CAST "combine");
5735 if (combine != NULL) {
5736 if (xmlStrEqual(combine, BAD_CAST "choice")) {
5737 if (choiceOrInterleave == -1)
5738 choiceOrInterleave = 1;
5739 else if (choiceOrInterleave == 0) {
5740 xmlRngPErr(ctxt, define->node, XML_RNGP_DEF_CHOICE_AND_INTERLEAVE,
5741 "Defines for %s use both 'choice' and 'interleave'\n",
5742 name, NULL);
5743 }
5744 } else if (xmlStrEqual(combine, BAD_CAST "interleave")) {
5745 if (choiceOrInterleave == -1)
5746 choiceOrInterleave = 0;
5747 else if (choiceOrInterleave == 1) {
5748 xmlRngPErr(ctxt, define->node, XML_RNGP_DEF_CHOICE_AND_INTERLEAVE,
5749 "Defines for %s use both 'choice' and 'interleave'\n",
5750 name, NULL);
5751 }
5752 } else {
5753 xmlRngPErr(ctxt, define->node, XML_RNGP_UNKNOWN_COMBINE,
5754 "Defines for %s use unknown combine value '%s''\n",
5755 name, combine);
5756 }
5757 xmlFree(combine);
5758 } else {
5759 if (missing == 0)
5760 missing = 1;
5761 else {
5762 xmlRngPErr(ctxt, define->node, XML_RNGP_NEED_COMBINE,
5763 "Some defines for %s needs the combine attribute\n",
5764 name, NULL);
5765 }
5766 }
5767
5768 cur = cur->nextHash;
5769 }
5770 #ifdef DEBUG
5771 xmlGenericError(xmlGenericErrorContext,
5772 "xmlRelaxNGCheckCombine(): merging %s defines: %d\n",
5773 name, choiceOrInterleave);
5774 #endif
5775 if (choiceOrInterleave == -1)
5776 choiceOrInterleave = 0;
5777 cur = xmlRelaxNGNewDefine(ctxt, define->node);
5778 if (cur == NULL)
5779 return;
5780 if (choiceOrInterleave == 0)
5781 cur->type = XML_RELAXNG_INTERLEAVE;
5782 else
5783 cur->type = XML_RELAXNG_CHOICE;
5784 tmp = define;
5785 last = NULL;
5786 while (tmp != NULL) {
5787 if (tmp->content != NULL) {
5788 if (tmp->content->next != NULL) {
5789 /*
5790 * we need first to create a wrapper.
5791 */
5792 tmp2 = xmlRelaxNGNewDefine(ctxt, tmp->content->node);
5793 if (tmp2 == NULL)
5794 break;
5795 tmp2->type = XML_RELAXNG_GROUP;
5796 tmp2->content = tmp->content;
5797 } else {
5798 tmp2 = tmp->content;
5799 }
5800 if (last == NULL) {
5801 cur->content = tmp2;
5802 } else {
5803 last->next = tmp2;
5804 }
5805 last = tmp2;
5806 }
5807 tmp->content = cur;
5808 tmp = tmp->nextHash;
5809 }
5810 define->content = cur;
5811 if (choiceOrInterleave == 0) {
5812 if (ctxt->interleaves == NULL)
5813 ctxt->interleaves = xmlHashCreate(10);
5814 if (ctxt->interleaves == NULL) {
5815 xmlRngPErr(ctxt, define->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
5816 "Failed to create interleaves hash table\n", NULL,
5817 NULL);
5818 } else {
5819 char tmpname[32];
5820
5821 snprintf(tmpname, 32, "interleave%d", ctxt->nbInterleaves++);
5822 if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST tmpname, cur) <
5823 0) {
5824 xmlRngPErr(ctxt, define->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
5825 "Failed to add %s to hash table\n",
5826 (const xmlChar *) tmpname, NULL);
5827 }
5828 }
5829 }
5830 }
5831
5832 /**
5833 * xmlRelaxNGCombineStart:
5834 * @ctxt: a Relax-NG parser context
5835 * @grammar: the grammar
5836 *
5837 * Applies the 4.17. combine rule for all the start
5838 * element of a given grammar.
5839 */
5840 static void
xmlRelaxNGCombineStart(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGGrammarPtr grammar)5841 xmlRelaxNGCombineStart(xmlRelaxNGParserCtxtPtr ctxt,
5842 xmlRelaxNGGrammarPtr grammar)
5843 {
5844 xmlRelaxNGDefinePtr starts;
5845 xmlChar *combine;
5846 int choiceOrInterleave = -1;
5847 int missing = 0;
5848 xmlRelaxNGDefinePtr cur;
5849
5850 starts = grammar->start;
5851 if ((starts == NULL) || (starts->next == NULL))
5852 return;
5853 cur = starts;
5854 while (cur != NULL) {
5855 if ((cur->node == NULL) || (cur->node->parent == NULL) ||
5856 (!xmlStrEqual(cur->node->parent->name, BAD_CAST "start"))) {
5857 combine = NULL;
5858 xmlRngPErr(ctxt, cur->node, XML_RNGP_START_MISSING,
5859 "Internal error: start element not found\n", NULL,
5860 NULL);
5861 } else {
5862 combine = xmlGetProp(cur->node->parent, BAD_CAST "combine");
5863 }
5864
5865 if (combine != NULL) {
5866 if (xmlStrEqual(combine, BAD_CAST "choice")) {
5867 if (choiceOrInterleave == -1)
5868 choiceOrInterleave = 1;
5869 else if (choiceOrInterleave == 0) {
5870 xmlRngPErr(ctxt, cur->node, XML_RNGP_START_CHOICE_AND_INTERLEAVE,
5871 "<start> use both 'choice' and 'interleave'\n",
5872 NULL, NULL);
5873 }
5874 } else if (xmlStrEqual(combine, BAD_CAST "interleave")) {
5875 if (choiceOrInterleave == -1)
5876 choiceOrInterleave = 0;
5877 else if (choiceOrInterleave == 1) {
5878 xmlRngPErr(ctxt, cur->node, XML_RNGP_START_CHOICE_AND_INTERLEAVE,
5879 "<start> use both 'choice' and 'interleave'\n",
5880 NULL, NULL);
5881 }
5882 } else {
5883 xmlRngPErr(ctxt, cur->node, XML_RNGP_UNKNOWN_COMBINE,
5884 "<start> uses unknown combine value '%s''\n",
5885 combine, NULL);
5886 }
5887 xmlFree(combine);
5888 } else {
5889 if (missing == 0)
5890 missing = 1;
5891 else {
5892 xmlRngPErr(ctxt, cur->node, XML_RNGP_NEED_COMBINE,
5893 "Some <start> element miss the combine attribute\n",
5894 NULL, NULL);
5895 }
5896 }
5897
5898 cur = cur->next;
5899 }
5900 #ifdef DEBUG
5901 xmlGenericError(xmlGenericErrorContext,
5902 "xmlRelaxNGCombineStart(): merging <start>: %d\n",
5903 choiceOrInterleave);
5904 #endif
5905 if (choiceOrInterleave == -1)
5906 choiceOrInterleave = 0;
5907 cur = xmlRelaxNGNewDefine(ctxt, starts->node);
5908 if (cur == NULL)
5909 return;
5910 if (choiceOrInterleave == 0)
5911 cur->type = XML_RELAXNG_INTERLEAVE;
5912 else
5913 cur->type = XML_RELAXNG_CHOICE;
5914 cur->content = grammar->start;
5915 grammar->start = cur;
5916 if (choiceOrInterleave == 0) {
5917 if (ctxt->interleaves == NULL)
5918 ctxt->interleaves = xmlHashCreate(10);
5919 if (ctxt->interleaves == NULL) {
5920 xmlRngPErr(ctxt, cur->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
5921 "Failed to create interleaves hash table\n", NULL,
5922 NULL);
5923 } else {
5924 char tmpname[32];
5925
5926 snprintf(tmpname, 32, "interleave%d", ctxt->nbInterleaves++);
5927 if (xmlHashAddEntry(ctxt->interleaves, BAD_CAST tmpname, cur) <
5928 0) {
5929 xmlRngPErr(ctxt, cur->node, XML_RNGP_INTERLEAVE_CREATE_FAILED,
5930 "Failed to add %s to hash table\n",
5931 (const xmlChar *) tmpname, NULL);
5932 }
5933 }
5934 }
5935 }
5936
5937 /**
5938 * xmlRelaxNGCheckCycles:
5939 * @ctxt: a Relax-NG parser context
5940 * @nodes: grammar children nodes
5941 * @depth: the counter
5942 *
5943 * Check for cycles.
5944 *
5945 * Returns 0 if check passed, and -1 in case of error
5946 */
5947 static int
xmlRelaxNGCheckCycles(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr cur,int depth)5948 xmlRelaxNGCheckCycles(xmlRelaxNGParserCtxtPtr ctxt,
5949 xmlRelaxNGDefinePtr cur, int depth)
5950 {
5951 int ret = 0;
5952
5953 while ((ret == 0) && (cur != NULL)) {
5954 if ((cur->type == XML_RELAXNG_REF) ||
5955 (cur->type == XML_RELAXNG_PARENTREF)) {
5956 if (cur->depth == -1) {
5957 cur->depth = depth;
5958 ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth);
5959 cur->depth = -2;
5960 } else if (depth == cur->depth) {
5961 xmlRngPErr(ctxt, cur->node, XML_RNGP_REF_CYCLE,
5962 "Detected a cycle in %s references\n",
5963 cur->name, NULL);
5964 return (-1);
5965 }
5966 } else if (cur->type == XML_RELAXNG_ELEMENT) {
5967 ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth + 1);
5968 } else {
5969 ret = xmlRelaxNGCheckCycles(ctxt, cur->content, depth);
5970 }
5971 cur = cur->next;
5972 }
5973 return (ret);
5974 }
5975
5976 /**
5977 * xmlRelaxNGTryUnlink:
5978 * @ctxt: a Relax-NG parser context
5979 * @cur: the definition to unlink
5980 * @parent: the parent definition
5981 * @prev: the previous sibling definition
5982 *
5983 * Try to unlink a definition. If not possble make it a NOOP
5984 *
5985 * Returns the new prev definition
5986 */
5987 static xmlRelaxNGDefinePtr
xmlRelaxNGTryUnlink(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlRelaxNGDefinePtr cur,xmlRelaxNGDefinePtr parent,xmlRelaxNGDefinePtr prev)5988 xmlRelaxNGTryUnlink(xmlRelaxNGParserCtxtPtr ctxt ATTRIBUTE_UNUSED,
5989 xmlRelaxNGDefinePtr cur,
5990 xmlRelaxNGDefinePtr parent, xmlRelaxNGDefinePtr prev)
5991 {
5992 if (prev != NULL) {
5993 prev->next = cur->next;
5994 } else {
5995 if (parent != NULL) {
5996 if (parent->content == cur)
5997 parent->content = cur->next;
5998 else if (parent->attrs == cur)
5999 parent->attrs = cur->next;
6000 else if (parent->nameClass == cur)
6001 parent->nameClass = cur->next;
6002 } else {
6003 cur->type = XML_RELAXNG_NOOP;
6004 prev = cur;
6005 }
6006 }
6007 return (prev);
6008 }
6009
6010 /**
6011 * xmlRelaxNGSimplify:
6012 * @ctxt: a Relax-NG parser context
6013 * @nodes: grammar children nodes
6014 *
6015 * Check for simplification of empty and notAllowed
6016 */
6017 static void
xmlRelaxNGSimplify(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr cur,xmlRelaxNGDefinePtr parent)6018 xmlRelaxNGSimplify(xmlRelaxNGParserCtxtPtr ctxt,
6019 xmlRelaxNGDefinePtr cur, xmlRelaxNGDefinePtr parent)
6020 {
6021 xmlRelaxNGDefinePtr prev = NULL;
6022
6023 while (cur != NULL) {
6024 if ((cur->type == XML_RELAXNG_REF) ||
6025 (cur->type == XML_RELAXNG_PARENTREF)) {
6026 if (cur->depth != -3) {
6027 cur->depth = -3;
6028 xmlRelaxNGSimplify(ctxt, cur->content, cur);
6029 }
6030 } else if (cur->type == XML_RELAXNG_NOT_ALLOWED) {
6031 cur->parent = parent;
6032 if ((parent != NULL) &&
6033 ((parent->type == XML_RELAXNG_ATTRIBUTE) ||
6034 (parent->type == XML_RELAXNG_LIST) ||
6035 (parent->type == XML_RELAXNG_GROUP) ||
6036 (parent->type == XML_RELAXNG_INTERLEAVE) ||
6037 (parent->type == XML_RELAXNG_ONEORMORE) ||
6038 (parent->type == XML_RELAXNG_ZEROORMORE))) {
6039 parent->type = XML_RELAXNG_NOT_ALLOWED;
6040 break;
6041 }
6042 if ((parent != NULL) && (parent->type == XML_RELAXNG_CHOICE)) {
6043 prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
6044 } else
6045 prev = cur;
6046 } else if (cur->type == XML_RELAXNG_EMPTY) {
6047 cur->parent = parent;
6048 if ((parent != NULL) &&
6049 ((parent->type == XML_RELAXNG_ONEORMORE) ||
6050 (parent->type == XML_RELAXNG_ZEROORMORE))) {
6051 parent->type = XML_RELAXNG_EMPTY;
6052 break;
6053 }
6054 if ((parent != NULL) &&
6055 ((parent->type == XML_RELAXNG_GROUP) ||
6056 (parent->type == XML_RELAXNG_INTERLEAVE))) {
6057 prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
6058 } else
6059 prev = cur;
6060 } else {
6061 cur->parent = parent;
6062 if (cur->content != NULL)
6063 xmlRelaxNGSimplify(ctxt, cur->content, cur);
6064 if ((cur->type != XML_RELAXNG_VALUE) && (cur->attrs != NULL))
6065 xmlRelaxNGSimplify(ctxt, cur->attrs, cur);
6066 if (cur->nameClass != NULL)
6067 xmlRelaxNGSimplify(ctxt, cur->nameClass, cur);
6068 /*
6069 * On Elements, try to move attribute only generating rules on
6070 * the attrs rules.
6071 */
6072 if (cur->type == XML_RELAXNG_ELEMENT) {
6073 int attronly;
6074 xmlRelaxNGDefinePtr tmp, pre;
6075
6076 while (cur->content != NULL) {
6077 attronly =
6078 xmlRelaxNGGenerateAttributes(ctxt, cur->content);
6079 if (attronly == 1) {
6080 /*
6081 * migrate cur->content to attrs
6082 */
6083 tmp = cur->content;
6084 cur->content = tmp->next;
6085 tmp->next = cur->attrs;
6086 cur->attrs = tmp;
6087 } else {
6088 /*
6089 * cur->content can generate elements or text
6090 */
6091 break;
6092 }
6093 }
6094 pre = cur->content;
6095 while ((pre != NULL) && (pre->next != NULL)) {
6096 tmp = pre->next;
6097 attronly = xmlRelaxNGGenerateAttributes(ctxt, tmp);
6098 if (attronly == 1) {
6099 /*
6100 * migrate tmp to attrs
6101 */
6102 pre->next = tmp->next;
6103 tmp->next = cur->attrs;
6104 cur->attrs = tmp;
6105 } else {
6106 pre = tmp;
6107 }
6108 }
6109 }
6110 /*
6111 * This may result in a simplification
6112 */
6113 if ((cur->type == XML_RELAXNG_GROUP) ||
6114 (cur->type == XML_RELAXNG_INTERLEAVE)) {
6115 if (cur->content == NULL)
6116 cur->type = XML_RELAXNG_EMPTY;
6117 else if (cur->content->next == NULL) {
6118 if ((parent == NULL) && (prev == NULL)) {
6119 cur->type = XML_RELAXNG_NOOP;
6120 } else if (prev == NULL) {
6121 parent->content = cur->content;
6122 cur->content->next = cur->next;
6123 cur = cur->content;
6124 } else {
6125 cur->content->next = cur->next;
6126 prev->next = cur->content;
6127 cur = cur->content;
6128 }
6129 }
6130 }
6131 /*
6132 * the current node may have been transformed back
6133 */
6134 if ((cur->type == XML_RELAXNG_EXCEPT) &&
6135 (cur->content != NULL) &&
6136 (cur->content->type == XML_RELAXNG_NOT_ALLOWED)) {
6137 prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
6138 } else if (cur->type == XML_RELAXNG_NOT_ALLOWED) {
6139 if ((parent != NULL) &&
6140 ((parent->type == XML_RELAXNG_ATTRIBUTE) ||
6141 (parent->type == XML_RELAXNG_LIST) ||
6142 (parent->type == XML_RELAXNG_GROUP) ||
6143 (parent->type == XML_RELAXNG_INTERLEAVE) ||
6144 (parent->type == XML_RELAXNG_ONEORMORE) ||
6145 (parent->type == XML_RELAXNG_ZEROORMORE))) {
6146 parent->type = XML_RELAXNG_NOT_ALLOWED;
6147 break;
6148 }
6149 if ((parent != NULL) &&
6150 (parent->type == XML_RELAXNG_CHOICE)) {
6151 prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
6152 } else
6153 prev = cur;
6154 } else if (cur->type == XML_RELAXNG_EMPTY) {
6155 if ((parent != NULL) &&
6156 ((parent->type == XML_RELAXNG_ONEORMORE) ||
6157 (parent->type == XML_RELAXNG_ZEROORMORE))) {
6158 parent->type = XML_RELAXNG_EMPTY;
6159 break;
6160 }
6161 if ((parent != NULL) &&
6162 ((parent->type == XML_RELAXNG_GROUP) ||
6163 (parent->type == XML_RELAXNG_INTERLEAVE) ||
6164 (parent->type == XML_RELAXNG_CHOICE))) {
6165 prev = xmlRelaxNGTryUnlink(ctxt, cur, parent, prev);
6166 } else
6167 prev = cur;
6168 } else {
6169 prev = cur;
6170 }
6171 }
6172 cur = cur->next;
6173 }
6174 }
6175
6176 /**
6177 * xmlRelaxNGGroupContentType:
6178 * @ct1: the first content type
6179 * @ct2: the second content type
6180 *
6181 * Try to group 2 content types
6182 *
6183 * Returns the content type
6184 */
6185 static xmlRelaxNGContentType
xmlRelaxNGGroupContentType(xmlRelaxNGContentType ct1,xmlRelaxNGContentType ct2)6186 xmlRelaxNGGroupContentType(xmlRelaxNGContentType ct1,
6187 xmlRelaxNGContentType ct2)
6188 {
6189 if ((ct1 == XML_RELAXNG_CONTENT_ERROR) ||
6190 (ct2 == XML_RELAXNG_CONTENT_ERROR))
6191 return (XML_RELAXNG_CONTENT_ERROR);
6192 if (ct1 == XML_RELAXNG_CONTENT_EMPTY)
6193 return (ct2);
6194 if (ct2 == XML_RELAXNG_CONTENT_EMPTY)
6195 return (ct1);
6196 if ((ct1 == XML_RELAXNG_CONTENT_COMPLEX) &&
6197 (ct2 == XML_RELAXNG_CONTENT_COMPLEX))
6198 return (XML_RELAXNG_CONTENT_COMPLEX);
6199 return (XML_RELAXNG_CONTENT_ERROR);
6200 }
6201
6202 /**
6203 * xmlRelaxNGMaxContentType:
6204 * @ct1: the first content type
6205 * @ct2: the second content type
6206 *
6207 * Compute the max content-type
6208 *
6209 * Returns the content type
6210 */
6211 static xmlRelaxNGContentType
xmlRelaxNGMaxContentType(xmlRelaxNGContentType ct1,xmlRelaxNGContentType ct2)6212 xmlRelaxNGMaxContentType(xmlRelaxNGContentType ct1,
6213 xmlRelaxNGContentType ct2)
6214 {
6215 if ((ct1 == XML_RELAXNG_CONTENT_ERROR) ||
6216 (ct2 == XML_RELAXNG_CONTENT_ERROR))
6217 return (XML_RELAXNG_CONTENT_ERROR);
6218 if ((ct1 == XML_RELAXNG_CONTENT_SIMPLE) ||
6219 (ct2 == XML_RELAXNG_CONTENT_SIMPLE))
6220 return (XML_RELAXNG_CONTENT_SIMPLE);
6221 if ((ct1 == XML_RELAXNG_CONTENT_COMPLEX) ||
6222 (ct2 == XML_RELAXNG_CONTENT_COMPLEX))
6223 return (XML_RELAXNG_CONTENT_COMPLEX);
6224 return (XML_RELAXNG_CONTENT_EMPTY);
6225 }
6226
6227 /**
6228 * xmlRelaxNGCheckRules:
6229 * @ctxt: a Relax-NG parser context
6230 * @cur: the current definition
6231 * @flags: some accumulated flags
6232 * @ptype: the parent type
6233 *
6234 * Check for rules in section 7.1 and 7.2
6235 *
6236 * Returns the content type of @cur
6237 */
6238 static xmlRelaxNGContentType
xmlRelaxNGCheckRules(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGDefinePtr cur,int flags,xmlRelaxNGType ptype)6239 xmlRelaxNGCheckRules(xmlRelaxNGParserCtxtPtr ctxt,
6240 xmlRelaxNGDefinePtr cur, int flags,
6241 xmlRelaxNGType ptype)
6242 {
6243 int nflags;
6244 xmlRelaxNGContentType ret, tmp, val = XML_RELAXNG_CONTENT_EMPTY;
6245
6246 while (cur != NULL) {
6247 ret = XML_RELAXNG_CONTENT_EMPTY;
6248 if ((cur->type == XML_RELAXNG_REF) ||
6249 (cur->type == XML_RELAXNG_PARENTREF)) {
6250 /*
6251 * This should actually be caught by list//element(ref) at the
6252 * element boundaries, c.f. Bug #159968 local refs are dropped
6253 * in step 4.19.
6254 */
6255 #if 0
6256 if (flags & XML_RELAXNG_IN_LIST) {
6257 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_REF,
6258 "Found forbidden pattern list//ref\n", NULL,
6259 NULL);
6260 }
6261 #endif
6262 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6263 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_REF,
6264 "Found forbidden pattern data/except//ref\n",
6265 NULL, NULL);
6266 }
6267 if (cur->content == NULL) {
6268 if (cur->type == XML_RELAXNG_PARENTREF)
6269 xmlRngPErr(ctxt, cur->node, XML_RNGP_REF_NO_DEF,
6270 "Internal found no define for parent refs\n",
6271 NULL, NULL);
6272 else
6273 xmlRngPErr(ctxt, cur->node, XML_RNGP_REF_NO_DEF,
6274 "Internal found no define for ref %s\n",
6275 (cur->name ? cur->name: BAD_CAST "null"), NULL);
6276 }
6277 if (cur->depth > -4) {
6278 cur->depth = -4;
6279 ret = xmlRelaxNGCheckRules(ctxt, cur->content,
6280 flags, cur->type);
6281 cur->depth = ret - 15;
6282 } else if (cur->depth == -4) {
6283 ret = XML_RELAXNG_CONTENT_COMPLEX;
6284 } else {
6285 ret = (xmlRelaxNGContentType) (cur->depth + 15);
6286 }
6287 } else if (cur->type == XML_RELAXNG_ELEMENT) {
6288 /*
6289 * The 7.3 Attribute derivation rule for groups is plugged there
6290 */
6291 xmlRelaxNGCheckGroupAttrs(ctxt, cur);
6292 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6293 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ELEM,
6294 "Found forbidden pattern data/except//element(ref)\n",
6295 NULL, NULL);
6296 }
6297 if (flags & XML_RELAXNG_IN_LIST) {
6298 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_ELEM,
6299 "Found forbidden pattern list//element(ref)\n",
6300 NULL, NULL);
6301 }
6302 if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
6303 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ELEM,
6304 "Found forbidden pattern attribute//element(ref)\n",
6305 NULL, NULL);
6306 }
6307 if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
6308 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ELEM,
6309 "Found forbidden pattern attribute//element(ref)\n",
6310 NULL, NULL);
6311 }
6312 /*
6313 * reset since in the simple form elements are only child
6314 * of grammar/define
6315 */
6316 nflags = 0;
6317 ret =
6318 xmlRelaxNGCheckRules(ctxt, cur->attrs, nflags, cur->type);
6319 if (ret != XML_RELAXNG_CONTENT_EMPTY) {
6320 xmlRngPErr(ctxt, cur->node, XML_RNGP_ELEM_CONTENT_EMPTY,
6321 "Element %s attributes have a content type error\n",
6322 cur->name, NULL);
6323 }
6324 ret =
6325 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6326 cur->type);
6327 if (ret == XML_RELAXNG_CONTENT_ERROR) {
6328 xmlRngPErr(ctxt, cur->node, XML_RNGP_ELEM_CONTENT_ERROR,
6329 "Element %s has a content type error\n",
6330 cur->name, NULL);
6331 } else {
6332 ret = XML_RELAXNG_CONTENT_COMPLEX;
6333 }
6334 } else if (cur->type == XML_RELAXNG_ATTRIBUTE) {
6335 if (flags & XML_RELAXNG_IN_ATTRIBUTE) {
6336 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ATTR_ATTR,
6337 "Found forbidden pattern attribute//attribute\n",
6338 NULL, NULL);
6339 }
6340 if (flags & XML_RELAXNG_IN_LIST) {
6341 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_ATTR,
6342 "Found forbidden pattern list//attribute\n",
6343 NULL, NULL);
6344 }
6345 if (flags & XML_RELAXNG_IN_OOMGROUP) {
6346 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ONEMORE_GROUP_ATTR,
6347 "Found forbidden pattern oneOrMore//group//attribute\n",
6348 NULL, NULL);
6349 }
6350 if (flags & XML_RELAXNG_IN_OOMINTERLEAVE) {
6351 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_ONEMORE_INTERLEAVE_ATTR,
6352 "Found forbidden pattern oneOrMore//interleave//attribute\n",
6353 NULL, NULL);
6354 }
6355 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6356 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ATTR,
6357 "Found forbidden pattern data/except//attribute\n",
6358 NULL, NULL);
6359 }
6360 if (flags & XML_RELAXNG_IN_START) {
6361 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_ATTR,
6362 "Found forbidden pattern start//attribute\n",
6363 NULL, NULL);
6364 }
6365 if ((!(flags & XML_RELAXNG_IN_ONEORMORE))
6366 && (cur->name == NULL)) {
6367 if (cur->ns == NULL) {
6368 xmlRngPErr(ctxt, cur->node, XML_RNGP_ANYNAME_ATTR_ANCESTOR,
6369 "Found anyName attribute without oneOrMore ancestor\n",
6370 NULL, NULL);
6371 } else {
6372 xmlRngPErr(ctxt, cur->node, XML_RNGP_NSNAME_ATTR_ANCESTOR,
6373 "Found nsName attribute without oneOrMore ancestor\n",
6374 NULL, NULL);
6375 }
6376 }
6377 nflags = flags | XML_RELAXNG_IN_ATTRIBUTE;
6378 xmlRelaxNGCheckRules(ctxt, cur->content, nflags, cur->type);
6379 ret = XML_RELAXNG_CONTENT_EMPTY;
6380 } else if ((cur->type == XML_RELAXNG_ONEORMORE) ||
6381 (cur->type == XML_RELAXNG_ZEROORMORE)) {
6382 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6383 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_ONEMORE,
6384 "Found forbidden pattern data/except//oneOrMore\n",
6385 NULL, NULL);
6386 }
6387 if (flags & XML_RELAXNG_IN_START) {
6388 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_ONEMORE,
6389 "Found forbidden pattern start//oneOrMore\n",
6390 NULL, NULL);
6391 }
6392 nflags = flags | XML_RELAXNG_IN_ONEORMORE;
6393 ret =
6394 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6395 cur->type);
6396 ret = xmlRelaxNGGroupContentType(ret, ret);
6397 } else if (cur->type == XML_RELAXNG_LIST) {
6398 if (flags & XML_RELAXNG_IN_LIST) {
6399 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_LIST,
6400 "Found forbidden pattern list//list\n", NULL,
6401 NULL);
6402 }
6403 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6404 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_LIST,
6405 "Found forbidden pattern data/except//list\n",
6406 NULL, NULL);
6407 }
6408 if (flags & XML_RELAXNG_IN_START) {
6409 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_LIST,
6410 "Found forbidden pattern start//list\n", NULL,
6411 NULL);
6412 }
6413 nflags = flags | XML_RELAXNG_IN_LIST;
6414 ret =
6415 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6416 cur->type);
6417 } else if (cur->type == XML_RELAXNG_GROUP) {
6418 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6419 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_GROUP,
6420 "Found forbidden pattern data/except//group\n",
6421 NULL, NULL);
6422 }
6423 if (flags & XML_RELAXNG_IN_START) {
6424 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_GROUP,
6425 "Found forbidden pattern start//group\n", NULL,
6426 NULL);
6427 }
6428 if (flags & XML_RELAXNG_IN_ONEORMORE)
6429 nflags = flags | XML_RELAXNG_IN_OOMGROUP;
6430 else
6431 nflags = flags;
6432 ret =
6433 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6434 cur->type);
6435 /*
6436 * The 7.3 Attribute derivation rule for groups is plugged there
6437 */
6438 xmlRelaxNGCheckGroupAttrs(ctxt, cur);
6439 } else if (cur->type == XML_RELAXNG_INTERLEAVE) {
6440 if (flags & XML_RELAXNG_IN_LIST) {
6441 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_INTERLEAVE,
6442 "Found forbidden pattern list//interleave\n",
6443 NULL, NULL);
6444 }
6445 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6446 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_INTERLEAVE,
6447 "Found forbidden pattern data/except//interleave\n",
6448 NULL, NULL);
6449 }
6450 if (flags & XML_RELAXNG_IN_START) {
6451 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_INTERLEAVE,
6452 "Found forbidden pattern start//interleave\n",
6453 NULL, NULL);
6454 }
6455 if (flags & XML_RELAXNG_IN_ONEORMORE)
6456 nflags = flags | XML_RELAXNG_IN_OOMINTERLEAVE;
6457 else
6458 nflags = flags;
6459 ret =
6460 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6461 cur->type);
6462 } else if (cur->type == XML_RELAXNG_EXCEPT) {
6463 if ((cur->parent != NULL) &&
6464 (cur->parent->type == XML_RELAXNG_DATATYPE))
6465 nflags = flags | XML_RELAXNG_IN_DATAEXCEPT;
6466 else
6467 nflags = flags;
6468 ret =
6469 xmlRelaxNGCheckRules(ctxt, cur->content, nflags,
6470 cur->type);
6471 } else if (cur->type == XML_RELAXNG_DATATYPE) {
6472 if (flags & XML_RELAXNG_IN_START) {
6473 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_DATA,
6474 "Found forbidden pattern start//data\n", NULL,
6475 NULL);
6476 }
6477 xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
6478 ret = XML_RELAXNG_CONTENT_SIMPLE;
6479 } else if (cur->type == XML_RELAXNG_VALUE) {
6480 if (flags & XML_RELAXNG_IN_START) {
6481 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_VALUE,
6482 "Found forbidden pattern start//value\n", NULL,
6483 NULL);
6484 }
6485 xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
6486 ret = XML_RELAXNG_CONTENT_SIMPLE;
6487 } else if (cur->type == XML_RELAXNG_TEXT) {
6488 if (flags & XML_RELAXNG_IN_LIST) {
6489 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_LIST_TEXT,
6490 "Found forbidden pattern list//text\n", NULL,
6491 NULL);
6492 }
6493 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6494 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_TEXT,
6495 "Found forbidden pattern data/except//text\n",
6496 NULL, NULL);
6497 }
6498 if (flags & XML_RELAXNG_IN_START) {
6499 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_TEXT,
6500 "Found forbidden pattern start//text\n", NULL,
6501 NULL);
6502 }
6503 ret = XML_RELAXNG_CONTENT_COMPLEX;
6504 } else if (cur->type == XML_RELAXNG_EMPTY) {
6505 if (flags & XML_RELAXNG_IN_DATAEXCEPT) {
6506 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_DATA_EXCEPT_EMPTY,
6507 "Found forbidden pattern data/except//empty\n",
6508 NULL, NULL);
6509 }
6510 if (flags & XML_RELAXNG_IN_START) {
6511 xmlRngPErr(ctxt, cur->node, XML_RNGP_PAT_START_EMPTY,
6512 "Found forbidden pattern start//empty\n", NULL,
6513 NULL);
6514 }
6515 ret = XML_RELAXNG_CONTENT_EMPTY;
6516 } else if (cur->type == XML_RELAXNG_CHOICE) {
6517 xmlRelaxNGCheckChoiceDeterminism(ctxt, cur);
6518 ret =
6519 xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
6520 } else {
6521 ret =
6522 xmlRelaxNGCheckRules(ctxt, cur->content, flags, cur->type);
6523 }
6524 cur = cur->next;
6525 if (ptype == XML_RELAXNG_GROUP) {
6526 val = xmlRelaxNGGroupContentType(val, ret);
6527 } else if (ptype == XML_RELAXNG_INTERLEAVE) {
6528 /*
6529 * TODO: scan complain that tmp is never used, seems on purpose
6530 * need double-checking
6531 */
6532 tmp = xmlRelaxNGGroupContentType(val, ret);
6533 if (tmp != XML_RELAXNG_CONTENT_ERROR)
6534 tmp = xmlRelaxNGMaxContentType(val, ret);
6535 } else if (ptype == XML_RELAXNG_CHOICE) {
6536 val = xmlRelaxNGMaxContentType(val, ret);
6537 } else if (ptype == XML_RELAXNG_LIST) {
6538 val = XML_RELAXNG_CONTENT_SIMPLE;
6539 } else if (ptype == XML_RELAXNG_EXCEPT) {
6540 if (ret == XML_RELAXNG_CONTENT_ERROR)
6541 val = XML_RELAXNG_CONTENT_ERROR;
6542 else
6543 val = XML_RELAXNG_CONTENT_SIMPLE;
6544 } else {
6545 val = xmlRelaxNGGroupContentType(val, ret);
6546 }
6547
6548 }
6549 return (val);
6550 }
6551
6552 /**
6553 * xmlRelaxNGParseGrammar:
6554 * @ctxt: a Relax-NG parser context
6555 * @nodes: grammar children nodes
6556 *
6557 * parse a Relax-NG <grammar> node
6558 *
6559 * Returns the internal xmlRelaxNGGrammarPtr built or
6560 * NULL in case of error
6561 */
6562 static xmlRelaxNGGrammarPtr
xmlRelaxNGParseGrammar(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr nodes)6563 xmlRelaxNGParseGrammar(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr nodes)
6564 {
6565 xmlRelaxNGGrammarPtr ret, tmp, old;
6566
6567 #ifdef DEBUG_GRAMMAR
6568 xmlGenericError(xmlGenericErrorContext, "Parsing a new grammar\n");
6569 #endif
6570
6571 ret = xmlRelaxNGNewGrammar(ctxt);
6572 if (ret == NULL)
6573 return (NULL);
6574
6575 /*
6576 * Link the new grammar in the tree
6577 */
6578 ret->parent = ctxt->grammar;
6579 if (ctxt->grammar != NULL) {
6580 tmp = ctxt->grammar->children;
6581 if (tmp == NULL) {
6582 ctxt->grammar->children = ret;
6583 } else {
6584 while (tmp->next != NULL)
6585 tmp = tmp->next;
6586 tmp->next = ret;
6587 }
6588 }
6589
6590 old = ctxt->grammar;
6591 ctxt->grammar = ret;
6592 xmlRelaxNGParseGrammarContent(ctxt, nodes);
6593 ctxt->grammar = ret;
6594 if (ctxt->grammar == NULL) {
6595 xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_CONTENT,
6596 "Failed to parse <grammar> content\n", NULL, NULL);
6597 } else if (ctxt->grammar->start == NULL) {
6598 xmlRngPErr(ctxt, nodes, XML_RNGP_GRAMMAR_NO_START,
6599 "Element <grammar> has no <start>\n", NULL, NULL);
6600 }
6601
6602 /*
6603 * Apply 4.17 merging rules to defines and starts
6604 */
6605 xmlRelaxNGCombineStart(ctxt, ret);
6606 if (ret->defs != NULL) {
6607 xmlHashScan(ret->defs, (xmlHashScanner) xmlRelaxNGCheckCombine,
6608 ctxt);
6609 }
6610
6611 /*
6612 * link together defines and refs in this grammar
6613 */
6614 if (ret->refs != NULL) {
6615 xmlHashScan(ret->refs, (xmlHashScanner) xmlRelaxNGCheckReference,
6616 ctxt);
6617 }
6618
6619
6620 /* @@@@ */
6621
6622 ctxt->grammar = old;
6623 return (ret);
6624 }
6625
6626 /**
6627 * xmlRelaxNGParseDocument:
6628 * @ctxt: a Relax-NG parser context
6629 * @node: the root node of the RelaxNG schema
6630 *
6631 * parse a Relax-NG definition resource and build an internal
6632 * xmlRelaxNG struture which can be used to validate instances.
6633 *
6634 * Returns the internal XML RelaxNG structure built or
6635 * NULL in case of error
6636 */
6637 static xmlRelaxNGPtr
xmlRelaxNGParseDocument(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)6638 xmlRelaxNGParseDocument(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
6639 {
6640 xmlRelaxNGPtr schema = NULL;
6641 const xmlChar *olddefine;
6642 xmlRelaxNGGrammarPtr old;
6643
6644 if ((ctxt == NULL) || (node == NULL))
6645 return (NULL);
6646
6647 schema = xmlRelaxNGNewRelaxNG(ctxt);
6648 if (schema == NULL)
6649 return (NULL);
6650
6651 olddefine = ctxt->define;
6652 ctxt->define = NULL;
6653 if (IS_RELAXNG(node, "grammar")) {
6654 schema->topgrammar = xmlRelaxNGParseGrammar(ctxt, node->children);
6655 if (schema->topgrammar == NULL) {
6656 xmlRelaxNGFree(schema);
6657 return (NULL);
6658 }
6659 } else {
6660 xmlRelaxNGGrammarPtr tmp, ret;
6661
6662 schema->topgrammar = ret = xmlRelaxNGNewGrammar(ctxt);
6663 if (schema->topgrammar == NULL) {
6664 xmlRelaxNGFree(schema);
6665 return (NULL);
6666 }
6667 /*
6668 * Link the new grammar in the tree
6669 */
6670 ret->parent = ctxt->grammar;
6671 if (ctxt->grammar != NULL) {
6672 tmp = ctxt->grammar->children;
6673 if (tmp == NULL) {
6674 ctxt->grammar->children = ret;
6675 } else {
6676 while (tmp->next != NULL)
6677 tmp = tmp->next;
6678 tmp->next = ret;
6679 }
6680 }
6681 old = ctxt->grammar;
6682 ctxt->grammar = ret;
6683 xmlRelaxNGParseStart(ctxt, node);
6684 if (old != NULL)
6685 ctxt->grammar = old;
6686 }
6687 ctxt->define = olddefine;
6688 if (schema->topgrammar->start != NULL) {
6689 xmlRelaxNGCheckCycles(ctxt, schema->topgrammar->start, 0);
6690 if ((ctxt->flags & XML_RELAXNG_IN_EXTERNALREF) == 0) {
6691 xmlRelaxNGSimplify(ctxt, schema->topgrammar->start, NULL);
6692 while ((schema->topgrammar->start != NULL) &&
6693 (schema->topgrammar->start->type == XML_RELAXNG_NOOP) &&
6694 (schema->topgrammar->start->next != NULL))
6695 schema->topgrammar->start =
6696 schema->topgrammar->start->content;
6697 xmlRelaxNGCheckRules(ctxt, schema->topgrammar->start,
6698 XML_RELAXNG_IN_START, XML_RELAXNG_NOOP);
6699 }
6700 }
6701 #ifdef DEBUG
6702 if (schema == NULL)
6703 xmlGenericError(xmlGenericErrorContext,
6704 "xmlRelaxNGParseDocument() failed\n");
6705 #endif
6706
6707 return (schema);
6708 }
6709
6710 /************************************************************************
6711 * *
6712 * Reading RelaxNGs *
6713 * *
6714 ************************************************************************/
6715
6716 /**
6717 * xmlRelaxNGNewParserCtxt:
6718 * @URL: the location of the schema
6719 *
6720 * Create an XML RelaxNGs parse context for that file/resource expected
6721 * to contain an XML RelaxNGs file.
6722 *
6723 * Returns the parser context or NULL in case of error
6724 */
6725 xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewParserCtxt(const char * URL)6726 xmlRelaxNGNewParserCtxt(const char *URL)
6727 {
6728 xmlRelaxNGParserCtxtPtr ret;
6729
6730 if (URL == NULL)
6731 return (NULL);
6732
6733 ret =
6734 (xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
6735 if (ret == NULL) {
6736 xmlRngPErrMemory(NULL, "building parser\n");
6737 return (NULL);
6738 }
6739 memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
6740 ret->URL = xmlStrdup((const xmlChar *) URL);
6741 ret->error = xmlGenericError;
6742 ret->userData = xmlGenericErrorContext;
6743 return (ret);
6744 }
6745
6746 /**
6747 * xmlRelaxNGNewMemParserCtxt:
6748 * @buffer: a pointer to a char array containing the schemas
6749 * @size: the size of the array
6750 *
6751 * Create an XML RelaxNGs parse context for that memory buffer expected
6752 * to contain an XML RelaxNGs file.
6753 *
6754 * Returns the parser context or NULL in case of error
6755 */
6756 xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewMemParserCtxt(const char * buffer,int size)6757 xmlRelaxNGNewMemParserCtxt(const char *buffer, int size)
6758 {
6759 xmlRelaxNGParserCtxtPtr ret;
6760
6761 if ((buffer == NULL) || (size <= 0))
6762 return (NULL);
6763
6764 ret =
6765 (xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
6766 if (ret == NULL) {
6767 xmlRngPErrMemory(NULL, "building parser\n");
6768 return (NULL);
6769 }
6770 memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
6771 ret->buffer = buffer;
6772 ret->size = size;
6773 ret->error = xmlGenericError;
6774 ret->userData = xmlGenericErrorContext;
6775 return (ret);
6776 }
6777
6778 /**
6779 * xmlRelaxNGNewDocParserCtxt:
6780 * @doc: a preparsed document tree
6781 *
6782 * Create an XML RelaxNGs parser context for that document.
6783 * Note: since the process of compiling a RelaxNG schemas modifies the
6784 * document, the @doc parameter is duplicated internally.
6785 *
6786 * Returns the parser context or NULL in case of error
6787 */
6788 xmlRelaxNGParserCtxtPtr
xmlRelaxNGNewDocParserCtxt(xmlDocPtr doc)6789 xmlRelaxNGNewDocParserCtxt(xmlDocPtr doc)
6790 {
6791 xmlRelaxNGParserCtxtPtr ret;
6792 xmlDocPtr copy;
6793
6794 if (doc == NULL)
6795 return (NULL);
6796 copy = xmlCopyDoc(doc, 1);
6797 if (copy == NULL)
6798 return (NULL);
6799
6800 ret =
6801 (xmlRelaxNGParserCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGParserCtxt));
6802 if (ret == NULL) {
6803 xmlRngPErrMemory(NULL, "building parser\n");
6804 return (NULL);
6805 }
6806 memset(ret, 0, sizeof(xmlRelaxNGParserCtxt));
6807 ret->document = copy;
6808 ret->freedoc = 1;
6809 ret->userData = xmlGenericErrorContext;
6810 return (ret);
6811 }
6812
6813 /**
6814 * xmlRelaxNGFreeParserCtxt:
6815 * @ctxt: the schema parser context
6816 *
6817 * Free the resources associated to the schema parser context
6818 */
6819 void
xmlRelaxNGFreeParserCtxt(xmlRelaxNGParserCtxtPtr ctxt)6820 xmlRelaxNGFreeParserCtxt(xmlRelaxNGParserCtxtPtr ctxt)
6821 {
6822 if (ctxt == NULL)
6823 return;
6824 if (ctxt->URL != NULL)
6825 xmlFree(ctxt->URL);
6826 if (ctxt->doc != NULL)
6827 xmlRelaxNGFreeDocument(ctxt->doc);
6828 if (ctxt->interleaves != NULL)
6829 xmlHashFree(ctxt->interleaves, NULL);
6830 if (ctxt->documents != NULL)
6831 xmlRelaxNGFreeDocumentList(ctxt->documents);
6832 if (ctxt->includes != NULL)
6833 xmlRelaxNGFreeIncludeList(ctxt->includes);
6834 if (ctxt->docTab != NULL)
6835 xmlFree(ctxt->docTab);
6836 if (ctxt->incTab != NULL)
6837 xmlFree(ctxt->incTab);
6838 if (ctxt->defTab != NULL) {
6839 int i;
6840
6841 for (i = 0; i < ctxt->defNr; i++)
6842 xmlRelaxNGFreeDefine(ctxt->defTab[i]);
6843 xmlFree(ctxt->defTab);
6844 }
6845 if ((ctxt->document != NULL) && (ctxt->freedoc))
6846 xmlFreeDoc(ctxt->document);
6847 xmlFree(ctxt);
6848 }
6849
6850 /**
6851 * xmlRelaxNGNormExtSpace:
6852 * @value: a value
6853 *
6854 * Removes the leading and ending spaces of the value
6855 * The string is modified "in situ"
6856 */
6857 static void
xmlRelaxNGNormExtSpace(xmlChar * value)6858 xmlRelaxNGNormExtSpace(xmlChar * value)
6859 {
6860 xmlChar *start = value;
6861 xmlChar *cur = value;
6862
6863 if (value == NULL)
6864 return;
6865
6866 while (IS_BLANK_CH(*cur))
6867 cur++;
6868 if (cur == start) {
6869 do {
6870 while ((*cur != 0) && (!IS_BLANK_CH(*cur)))
6871 cur++;
6872 if (*cur == 0)
6873 return;
6874 start = cur;
6875 while (IS_BLANK_CH(*cur))
6876 cur++;
6877 if (*cur == 0) {
6878 *start = 0;
6879 return;
6880 }
6881 } while (1);
6882 } else {
6883 do {
6884 while ((*cur != 0) && (!IS_BLANK_CH(*cur)))
6885 *start++ = *cur++;
6886 if (*cur == 0) {
6887 *start = 0;
6888 return;
6889 }
6890 /* don't try to normalize the inner spaces */
6891 while (IS_BLANK_CH(*cur))
6892 cur++;
6893 if (*cur == 0) {
6894 *start = 0;
6895 return;
6896 }
6897 *start++ = *cur++;
6898 } while (1);
6899 }
6900 }
6901
6902 /**
6903 * xmlRelaxNGCleanupAttributes:
6904 * @ctxt: a Relax-NG parser context
6905 * @node: a Relax-NG node
6906 *
6907 * Check all the attributes on the given node
6908 */
6909 static void
xmlRelaxNGCleanupAttributes(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr node)6910 xmlRelaxNGCleanupAttributes(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr node)
6911 {
6912 xmlAttrPtr cur, next;
6913
6914 cur = node->properties;
6915 while (cur != NULL) {
6916 next = cur->next;
6917 if ((cur->ns == NULL) ||
6918 (xmlStrEqual(cur->ns->href, xmlRelaxNGNs))) {
6919 if (xmlStrEqual(cur->name, BAD_CAST "name")) {
6920 if ((!xmlStrEqual(node->name, BAD_CAST "element")) &&
6921 (!xmlStrEqual(node->name, BAD_CAST "attribute")) &&
6922 (!xmlStrEqual(node->name, BAD_CAST "ref")) &&
6923 (!xmlStrEqual(node->name, BAD_CAST "parentRef")) &&
6924 (!xmlStrEqual(node->name, BAD_CAST "param")) &&
6925 (!xmlStrEqual(node->name, BAD_CAST "define"))) {
6926 xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
6927 "Attribute %s is not allowed on %s\n",
6928 cur->name, node->name);
6929 }
6930 } else if (xmlStrEqual(cur->name, BAD_CAST "type")) {
6931 if ((!xmlStrEqual(node->name, BAD_CAST "value")) &&
6932 (!xmlStrEqual(node->name, BAD_CAST "data"))) {
6933 xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
6934 "Attribute %s is not allowed on %s\n",
6935 cur->name, node->name);
6936 }
6937 } else if (xmlStrEqual(cur->name, BAD_CAST "href")) {
6938 if ((!xmlStrEqual(node->name, BAD_CAST "externalRef")) &&
6939 (!xmlStrEqual(node->name, BAD_CAST "include"))) {
6940 xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
6941 "Attribute %s is not allowed on %s\n",
6942 cur->name, node->name);
6943 }
6944 } else if (xmlStrEqual(cur->name, BAD_CAST "combine")) {
6945 if ((!xmlStrEqual(node->name, BAD_CAST "start")) &&
6946 (!xmlStrEqual(node->name, BAD_CAST "define"))) {
6947 xmlRngPErr(ctxt, node, XML_RNGP_FORBIDDEN_ATTRIBUTE,
6948 "Attribute %s is not allowed on %s\n",
6949 cur->name, node->name);
6950 }
6951 } else if (xmlStrEqual(cur->name, BAD_CAST "datatypeLibrary")) {
6952 xmlChar *val;
6953 xmlURIPtr uri;
6954
6955 val = xmlNodeListGetString(node->doc, cur->children, 1);
6956 if (val != NULL) {
6957 if (val[0] != 0) {
6958 uri = xmlParseURI((const char *) val);
6959 if (uri == NULL) {
6960 xmlRngPErr(ctxt, node, XML_RNGP_INVALID_URI,
6961 "Attribute %s contains invalid URI %s\n",
6962 cur->name, val);
6963 } else {
6964 if (uri->scheme == NULL) {
6965 xmlRngPErr(ctxt, node, XML_RNGP_URI_NOT_ABSOLUTE,
6966 "Attribute %s URI %s is not absolute\n",
6967 cur->name, val);
6968 }
6969 if (uri->fragment != NULL) {
6970 xmlRngPErr(ctxt, node, XML_RNGP_URI_FRAGMENT,
6971 "Attribute %s URI %s has a fragment ID\n",
6972 cur->name, val);
6973 }
6974 xmlFreeURI(uri);
6975 }
6976 }
6977 xmlFree(val);
6978 }
6979 } else if (!xmlStrEqual(cur->name, BAD_CAST "ns")) {
6980 xmlRngPErr(ctxt, node, XML_RNGP_UNKNOWN_ATTRIBUTE,
6981 "Unknown attribute %s on %s\n", cur->name,
6982 node->name);
6983 }
6984 }
6985 cur = next;
6986 }
6987 }
6988
6989 /**
6990 * xmlRelaxNGCleanupTree:
6991 * @ctxt: a Relax-NG parser context
6992 * @root: an xmlNodePtr subtree
6993 *
6994 * Cleanup the subtree from unwanted nodes for parsing, resolve
6995 * Include and externalRef lookups.
6996 */
6997 static void
xmlRelaxNGCleanupTree(xmlRelaxNGParserCtxtPtr ctxt,xmlNodePtr root)6998 xmlRelaxNGCleanupTree(xmlRelaxNGParserCtxtPtr ctxt, xmlNodePtr root)
6999 {
7000 xmlNodePtr cur, delete;
7001
7002 delete = NULL;
7003 cur = root;
7004 while (cur != NULL) {
7005 if (delete != NULL) {
7006 xmlUnlinkNode(delete);
7007 xmlFreeNode(delete);
7008 delete = NULL;
7009 }
7010 if (cur->type == XML_ELEMENT_NODE) {
7011 /*
7012 * Simplification 4.1. Annotations
7013 */
7014 if ((cur->ns == NULL) ||
7015 (!xmlStrEqual(cur->ns->href, xmlRelaxNGNs))) {
7016 if ((cur->parent != NULL) &&
7017 (cur->parent->type == XML_ELEMENT_NODE) &&
7018 ((xmlStrEqual(cur->parent->name, BAD_CAST "name")) ||
7019 (xmlStrEqual(cur->parent->name, BAD_CAST "value")) ||
7020 (xmlStrEqual(cur->parent->name, BAD_CAST "param")))) {
7021 xmlRngPErr(ctxt, cur, XML_RNGP_FOREIGN_ELEMENT,
7022 "element %s doesn't allow foreign elements\n",
7023 cur->parent->name, NULL);
7024 }
7025 delete = cur;
7026 goto skip_children;
7027 } else {
7028 xmlRelaxNGCleanupAttributes(ctxt, cur);
7029 if (xmlStrEqual(cur->name, BAD_CAST "externalRef")) {
7030 xmlChar *href, *ns, *base, *URL;
7031 xmlRelaxNGDocumentPtr docu;
7032 xmlNodePtr tmp;
7033 xmlURIPtr uri;
7034
7035 ns = xmlGetProp(cur, BAD_CAST "ns");
7036 if (ns == NULL) {
7037 tmp = cur->parent;
7038 while ((tmp != NULL) &&
7039 (tmp->type == XML_ELEMENT_NODE)) {
7040 ns = xmlGetProp(tmp, BAD_CAST "ns");
7041 if (ns != NULL)
7042 break;
7043 tmp = tmp->parent;
7044 }
7045 }
7046 href = xmlGetProp(cur, BAD_CAST "href");
7047 if (href == NULL) {
7048 xmlRngPErr(ctxt, cur, XML_RNGP_MISSING_HREF,
7049 "xmlRelaxNGParse: externalRef has no href attribute\n",
7050 NULL, NULL);
7051 if (ns != NULL)
7052 xmlFree(ns);
7053 delete = cur;
7054 goto skip_children;
7055 }
7056 uri = xmlParseURI((const char *) href);
7057 if (uri == NULL) {
7058 xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
7059 "Incorrect URI for externalRef %s\n",
7060 href, NULL);
7061 if (ns != NULL)
7062 xmlFree(ns);
7063 if (href != NULL)
7064 xmlFree(href);
7065 delete = cur;
7066 goto skip_children;
7067 }
7068 if (uri->fragment != NULL) {
7069 xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
7070 "Fragment forbidden in URI for externalRef %s\n",
7071 href, NULL);
7072 if (ns != NULL)
7073 xmlFree(ns);
7074 xmlFreeURI(uri);
7075 if (href != NULL)
7076 xmlFree(href);
7077 delete = cur;
7078 goto skip_children;
7079 }
7080 xmlFreeURI(uri);
7081 base = xmlNodeGetBase(cur->doc, cur);
7082 URL = xmlBuildURI(href, base);
7083 if (URL == NULL) {
7084 xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
7085 "Failed to compute URL for externalRef %s\n",
7086 href, NULL);
7087 if (ns != NULL)
7088 xmlFree(ns);
7089 if (href != NULL)
7090 xmlFree(href);
7091 if (base != NULL)
7092 xmlFree(base);
7093 delete = cur;
7094 goto skip_children;
7095 }
7096 if (href != NULL)
7097 xmlFree(href);
7098 if (base != NULL)
7099 xmlFree(base);
7100 docu = xmlRelaxNGLoadExternalRef(ctxt, URL, ns);
7101 if (docu == NULL) {
7102 xmlRngPErr(ctxt, cur, XML_RNGP_EXTERNAL_REF_FAILURE,
7103 "Failed to load externalRef %s\n", URL,
7104 NULL);
7105 if (ns != NULL)
7106 xmlFree(ns);
7107 xmlFree(URL);
7108 delete = cur;
7109 goto skip_children;
7110 }
7111 if (ns != NULL)
7112 xmlFree(ns);
7113 xmlFree(URL);
7114 cur->psvi = docu;
7115 } else if (xmlStrEqual(cur->name, BAD_CAST "include")) {
7116 xmlChar *href, *ns, *base, *URL;
7117 xmlRelaxNGIncludePtr incl;
7118 xmlNodePtr tmp;
7119
7120 href = xmlGetProp(cur, BAD_CAST "href");
7121 if (href == NULL) {
7122 xmlRngPErr(ctxt, cur, XML_RNGP_MISSING_HREF,
7123 "xmlRelaxNGParse: include has no href attribute\n",
7124 NULL, NULL);
7125 delete = cur;
7126 goto skip_children;
7127 }
7128 base = xmlNodeGetBase(cur->doc, cur);
7129 URL = xmlBuildURI(href, base);
7130 if (URL == NULL) {
7131 xmlRngPErr(ctxt, cur, XML_RNGP_HREF_ERROR,
7132 "Failed to compute URL for include %s\n",
7133 href, NULL);
7134 if (href != NULL)
7135 xmlFree(href);
7136 if (base != NULL)
7137 xmlFree(base);
7138 delete = cur;
7139 goto skip_children;
7140 }
7141 if (href != NULL)
7142 xmlFree(href);
7143 if (base != NULL)
7144 xmlFree(base);
7145 ns = xmlGetProp(cur, BAD_CAST "ns");
7146 if (ns == NULL) {
7147 tmp = cur->parent;
7148 while ((tmp != NULL) &&
7149 (tmp->type == XML_ELEMENT_NODE)) {
7150 ns = xmlGetProp(tmp, BAD_CAST "ns");
7151 if (ns != NULL)
7152 break;
7153 tmp = tmp->parent;
7154 }
7155 }
7156 incl = xmlRelaxNGLoadInclude(ctxt, URL, cur, ns);
7157 if (ns != NULL)
7158 xmlFree(ns);
7159 if (incl == NULL) {
7160 xmlRngPErr(ctxt, cur, XML_RNGP_INCLUDE_FAILURE,
7161 "Failed to load include %s\n", URL,
7162 NULL);
7163 xmlFree(URL);
7164 delete = cur;
7165 goto skip_children;
7166 }
7167 xmlFree(URL);
7168 cur->psvi = incl;
7169 } else if ((xmlStrEqual(cur->name, BAD_CAST "element")) ||
7170 (xmlStrEqual(cur->name, BAD_CAST "attribute")))
7171 {
7172 xmlChar *name, *ns;
7173 xmlNodePtr text = NULL;
7174
7175 /*
7176 * Simplification 4.8. name attribute of element
7177 * and attribute elements
7178 */
7179 name = xmlGetProp(cur, BAD_CAST "name");
7180 if (name != NULL) {
7181 if (cur->children == NULL) {
7182 text =
7183 xmlNewChild(cur, cur->ns, BAD_CAST "name",
7184 name);
7185 } else {
7186 xmlNodePtr node;
7187
7188 node = xmlNewDocNode(cur->doc, cur->ns,
7189 BAD_CAST "name", NULL);
7190 if (node != NULL) {
7191 xmlAddPrevSibling(cur->children, node);
7192 text = xmlNewText(name);
7193 xmlAddChild(node, text);
7194 text = node;
7195 }
7196 }
7197 if (text == NULL) {
7198 xmlRngPErr(ctxt, cur, XML_RNGP_CREATE_FAILURE,
7199 "Failed to create a name %s element\n",
7200 name, NULL);
7201 }
7202 xmlUnsetProp(cur, BAD_CAST "name");
7203 xmlFree(name);
7204 ns = xmlGetProp(cur, BAD_CAST "ns");
7205 if (ns != NULL) {
7206 if (text != NULL) {
7207 xmlSetProp(text, BAD_CAST "ns", ns);
7208 /* xmlUnsetProp(cur, BAD_CAST "ns"); */
7209 }
7210 xmlFree(ns);
7211 } else if (xmlStrEqual(cur->name,
7212 BAD_CAST "attribute")) {
7213 xmlSetProp(text, BAD_CAST "ns", BAD_CAST "");
7214 }
7215 }
7216 } else if ((xmlStrEqual(cur->name, BAD_CAST "name")) ||
7217 (xmlStrEqual(cur->name, BAD_CAST "nsName")) ||
7218 (xmlStrEqual(cur->name, BAD_CAST "value"))) {
7219 /*
7220 * Simplification 4.8. name attribute of element
7221 * and attribute elements
7222 */
7223 if (xmlHasProp(cur, BAD_CAST "ns") == NULL) {
7224 xmlNodePtr node;
7225 xmlChar *ns = NULL;
7226
7227 node = cur->parent;
7228 while ((node != NULL) &&
7229 (node->type == XML_ELEMENT_NODE)) {
7230 ns = xmlGetProp(node, BAD_CAST "ns");
7231 if (ns != NULL) {
7232 break;
7233 }
7234 node = node->parent;
7235 }
7236 if (ns == NULL) {
7237 xmlSetProp(cur, BAD_CAST "ns", BAD_CAST "");
7238 } else {
7239 xmlSetProp(cur, BAD_CAST "ns", ns);
7240 xmlFree(ns);
7241 }
7242 }
7243 if (xmlStrEqual(cur->name, BAD_CAST "name")) {
7244 xmlChar *name, *local, *prefix;
7245
7246 /*
7247 * Simplification: 4.10. QNames
7248 */
7249 name = xmlNodeGetContent(cur);
7250 if (name != NULL) {
7251 local = xmlSplitQName2(name, &prefix);
7252 if (local != NULL) {
7253 xmlNsPtr ns;
7254
7255 ns = xmlSearchNs(cur->doc, cur, prefix);
7256 if (ns == NULL) {
7257 xmlRngPErr(ctxt, cur,
7258 XML_RNGP_PREFIX_UNDEFINED,
7259 "xmlRelaxNGParse: no namespace for prefix %s\n",
7260 prefix, NULL);
7261 } else {
7262 xmlSetProp(cur, BAD_CAST "ns",
7263 ns->href);
7264 xmlNodeSetContent(cur, local);
7265 }
7266 xmlFree(local);
7267 xmlFree(prefix);
7268 }
7269 xmlFree(name);
7270 }
7271 }
7272 /*
7273 * 4.16
7274 */
7275 if (xmlStrEqual(cur->name, BAD_CAST "nsName")) {
7276 if (ctxt->flags & XML_RELAXNG_IN_NSEXCEPT) {
7277 xmlRngPErr(ctxt, cur,
7278 XML_RNGP_PAT_NSNAME_EXCEPT_NSNAME,
7279 "Found nsName/except//nsName forbidden construct\n",
7280 NULL, NULL);
7281 }
7282 }
7283 } else if ((xmlStrEqual(cur->name, BAD_CAST "except")) &&
7284 (cur != root)) {
7285 int oldflags = ctxt->flags;
7286
7287 /*
7288 * 4.16
7289 */
7290 if ((cur->parent != NULL) &&
7291 (xmlStrEqual
7292 (cur->parent->name, BAD_CAST "anyName"))) {
7293 ctxt->flags |= XML_RELAXNG_IN_ANYEXCEPT;
7294 xmlRelaxNGCleanupTree(ctxt, cur);
7295 ctxt->flags = oldflags;
7296 goto skip_children;
7297 } else if ((cur->parent != NULL) &&
7298 (xmlStrEqual
7299 (cur->parent->name, BAD_CAST "nsName"))) {
7300 ctxt->flags |= XML_RELAXNG_IN_NSEXCEPT;
7301 xmlRelaxNGCleanupTree(ctxt, cur);
7302 ctxt->flags = oldflags;
7303 goto skip_children;
7304 }
7305 } else if (xmlStrEqual(cur->name, BAD_CAST "anyName")) {
7306 /*
7307 * 4.16
7308 */
7309 if (ctxt->flags & XML_RELAXNG_IN_ANYEXCEPT) {
7310 xmlRngPErr(ctxt, cur,
7311 XML_RNGP_PAT_ANYNAME_EXCEPT_ANYNAME,
7312 "Found anyName/except//anyName forbidden construct\n",
7313 NULL, NULL);
7314 } else if (ctxt->flags & XML_RELAXNG_IN_NSEXCEPT) {
7315 xmlRngPErr(ctxt, cur,
7316 XML_RNGP_PAT_NSNAME_EXCEPT_ANYNAME,
7317 "Found nsName/except//anyName forbidden construct\n",
7318 NULL, NULL);
7319 }
7320 }
7321 /*
7322 * This is not an else since "include" is transformed
7323 * into a div
7324 */
7325 if (xmlStrEqual(cur->name, BAD_CAST "div")) {
7326 xmlChar *ns;
7327 xmlNodePtr child, ins, tmp;
7328
7329 /*
7330 * implements rule 4.11
7331 */
7332
7333 ns = xmlGetProp(cur, BAD_CAST "ns");
7334
7335 child = cur->children;
7336 ins = cur;
7337 while (child != NULL) {
7338 if (ns != NULL) {
7339 if (!xmlHasProp(child, BAD_CAST "ns")) {
7340 xmlSetProp(child, BAD_CAST "ns", ns);
7341 }
7342 }
7343 tmp = child->next;
7344 xmlUnlinkNode(child);
7345 ins = xmlAddNextSibling(ins, child);
7346 child = tmp;
7347 }
7348 if (ns != NULL)
7349 xmlFree(ns);
7350 /*
7351 * Since we are about to delete cur, if its nsDef is non-NULL we
7352 * need to preserve it (it contains the ns definitions for the
7353 * children we just moved). We'll just stick it on to the end
7354 * of cur->parent's list, since it's never going to be re-serialized
7355 * (bug 143738).
7356 */
7357 if ((cur->nsDef != NULL) && (cur->parent != NULL)) {
7358 xmlNsPtr parDef = (xmlNsPtr)&cur->parent->nsDef;
7359 while (parDef->next != NULL)
7360 parDef = parDef->next;
7361 parDef->next = cur->nsDef;
7362 cur->nsDef = NULL;
7363 }
7364 delete = cur;
7365 goto skip_children;
7366 }
7367 }
7368 }
7369 /*
7370 * Simplification 4.2 whitespaces
7371 */
7372 else if ((cur->type == XML_TEXT_NODE) ||
7373 (cur->type == XML_CDATA_SECTION_NODE)) {
7374 if (IS_BLANK_NODE(cur)) {
7375 if ((cur->parent != NULL) &&
7376 (cur->parent->type == XML_ELEMENT_NODE)) {
7377 if ((!xmlStrEqual(cur->parent->name, BAD_CAST "value"))
7378 &&
7379 (!xmlStrEqual
7380 (cur->parent->name, BAD_CAST "param")))
7381 delete = cur;
7382 } else {
7383 delete = cur;
7384 goto skip_children;
7385 }
7386 }
7387 } else {
7388 delete = cur;
7389 goto skip_children;
7390 }
7391
7392 /*
7393 * Skip to next node
7394 */
7395 if (cur->children != NULL) {
7396 if ((cur->children->type != XML_ENTITY_DECL) &&
7397 (cur->children->type != XML_ENTITY_REF_NODE) &&
7398 (cur->children->type != XML_ENTITY_NODE)) {
7399 cur = cur->children;
7400 continue;
7401 }
7402 }
7403 skip_children:
7404 if (cur->next != NULL) {
7405 cur = cur->next;
7406 continue;
7407 }
7408
7409 do {
7410 cur = cur->parent;
7411 if (cur == NULL)
7412 break;
7413 if (cur == root) {
7414 cur = NULL;
7415 break;
7416 }
7417 if (cur->next != NULL) {
7418 cur = cur->next;
7419 break;
7420 }
7421 } while (cur != NULL);
7422 }
7423 if (delete != NULL) {
7424 xmlUnlinkNode(delete);
7425 xmlFreeNode(delete);
7426 delete = NULL;
7427 }
7428 }
7429
7430 /**
7431 * xmlRelaxNGCleanupDoc:
7432 * @ctxt: a Relax-NG parser context
7433 * @doc: an xmldocPtr document pointer
7434 *
7435 * Cleanup the document from unwanted nodes for parsing, resolve
7436 * Include and externalRef lookups.
7437 *
7438 * Returns the cleaned up document or NULL in case of error
7439 */
7440 static xmlDocPtr
xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt,xmlDocPtr doc)7441 xmlRelaxNGCleanupDoc(xmlRelaxNGParserCtxtPtr ctxt, xmlDocPtr doc)
7442 {
7443 xmlNodePtr root;
7444
7445 /*
7446 * Extract the root
7447 */
7448 root = xmlDocGetRootElement(doc);
7449 if (root == NULL) {
7450 xmlRngPErr(ctxt, (xmlNodePtr) doc, XML_RNGP_EMPTY, "xmlRelaxNGParse: %s is empty\n",
7451 ctxt->URL, NULL);
7452 return (NULL);
7453 }
7454 xmlRelaxNGCleanupTree(ctxt, root);
7455 return (doc);
7456 }
7457
7458 /**
7459 * xmlRelaxNGParse:
7460 * @ctxt: a Relax-NG parser context
7461 *
7462 * parse a schema definition resource and build an internal
7463 * XML Shema struture which can be used to validate instances.
7464 *
7465 * Returns the internal XML RelaxNG structure built from the resource or
7466 * NULL in case of error
7467 */
7468 xmlRelaxNGPtr
xmlRelaxNGParse(xmlRelaxNGParserCtxtPtr ctxt)7469 xmlRelaxNGParse(xmlRelaxNGParserCtxtPtr ctxt)
7470 {
7471 xmlRelaxNGPtr ret = NULL;
7472 xmlDocPtr doc;
7473 xmlNodePtr root;
7474
7475 xmlRelaxNGInitTypes();
7476
7477 if (ctxt == NULL)
7478 return (NULL);
7479
7480 /*
7481 * First step is to parse the input document into an DOM/Infoset
7482 */
7483 if (ctxt->URL != NULL) {
7484 doc = xmlReadFile((const char *) ctxt->URL,NULL,0);
7485 if (doc == NULL) {
7486 xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
7487 "xmlRelaxNGParse: could not load %s\n", ctxt->URL,
7488 NULL);
7489 return (NULL);
7490 }
7491 } else if (ctxt->buffer != NULL) {
7492 doc = xmlReadMemory(ctxt->buffer, ctxt->size,NULL,NULL,0);
7493 if (doc == NULL) {
7494 xmlRngPErr(ctxt, NULL, XML_RNGP_PARSE_ERROR,
7495 "xmlRelaxNGParse: could not parse schemas\n", NULL,
7496 NULL);
7497 return (NULL);
7498 }
7499 doc->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
7500 ctxt->URL = xmlStrdup(BAD_CAST "in_memory_buffer");
7501 } else if (ctxt->document != NULL) {
7502 doc = ctxt->document;
7503 } else {
7504 xmlRngPErr(ctxt, NULL, XML_RNGP_EMPTY,
7505 "xmlRelaxNGParse: nothing to parse\n", NULL, NULL);
7506 return (NULL);
7507 }
7508 ctxt->document = doc;
7509
7510 /*
7511 * Some preprocessing of the document content
7512 */
7513 doc = xmlRelaxNGCleanupDoc(ctxt, doc);
7514 if (doc == NULL) {
7515 xmlFreeDoc(ctxt->document);
7516 ctxt->document = NULL;
7517 return (NULL);
7518 }
7519
7520 /*
7521 * Then do the parsing for good
7522 */
7523 root = xmlDocGetRootElement(doc);
7524 if (root == NULL) {
7525 xmlRngPErr(ctxt, (xmlNodePtr) doc,
7526 XML_RNGP_EMPTY, "xmlRelaxNGParse: %s is empty\n",
7527 (ctxt->URL ? ctxt->URL : BAD_CAST "schemas"), NULL);
7528
7529 xmlFreeDoc(ctxt->document);
7530 ctxt->document = NULL;
7531 return (NULL);
7532 }
7533 ret = xmlRelaxNGParseDocument(ctxt, root);
7534 if (ret == NULL) {
7535 xmlFreeDoc(ctxt->document);
7536 ctxt->document = NULL;
7537 return (NULL);
7538 }
7539
7540 /*
7541 * Check the ref/defines links
7542 */
7543 /*
7544 * try to preprocess interleaves
7545 */
7546 if (ctxt->interleaves != NULL) {
7547 xmlHashScan(ctxt->interleaves,
7548 (xmlHashScanner) xmlRelaxNGComputeInterleaves, ctxt);
7549 }
7550
7551 /*
7552 * if there was a parsing error return NULL
7553 */
7554 if (ctxt->nbErrors > 0) {
7555 xmlRelaxNGFree(ret);
7556 ctxt->document = NULL;
7557 xmlFreeDoc(doc);
7558 return (NULL);
7559 }
7560
7561 /*
7562 * try to compile (parts of) the schemas
7563 */
7564 if ((ret->topgrammar != NULL) && (ret->topgrammar->start != NULL)) {
7565 if (ret->topgrammar->start->type != XML_RELAXNG_START) {
7566 xmlRelaxNGDefinePtr def;
7567
7568 def = xmlRelaxNGNewDefine(ctxt, NULL);
7569 if (def != NULL) {
7570 def->type = XML_RELAXNG_START;
7571 def->content = ret->topgrammar->start;
7572 ret->topgrammar->start = def;
7573 }
7574 }
7575 xmlRelaxNGTryCompile(ctxt, ret->topgrammar->start);
7576 }
7577
7578 /*
7579 * Transfer the pointer for cleanup at the schema level.
7580 */
7581 ret->doc = doc;
7582 ctxt->document = NULL;
7583 ret->documents = ctxt->documents;
7584 ctxt->documents = NULL;
7585
7586 ret->includes = ctxt->includes;
7587 ctxt->includes = NULL;
7588 ret->defNr = ctxt->defNr;
7589 ret->defTab = ctxt->defTab;
7590 ctxt->defTab = NULL;
7591 if (ctxt->idref == 1)
7592 ret->idref = 1;
7593
7594 return (ret);
7595 }
7596
7597 /**
7598 * xmlRelaxNGSetParserErrors:
7599 * @ctxt: a Relax-NG validation context
7600 * @err: the error callback
7601 * @warn: the warning callback
7602 * @ctx: contextual data for the callbacks
7603 *
7604 * Set the callback functions used to handle errors for a validation context
7605 */
7606 void
xmlRelaxNGSetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGValidityErrorFunc err,xmlRelaxNGValidityWarningFunc warn,void * ctx)7607 xmlRelaxNGSetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,
7608 xmlRelaxNGValidityErrorFunc err,
7609 xmlRelaxNGValidityWarningFunc warn, void *ctx)
7610 {
7611 if (ctxt == NULL)
7612 return;
7613 ctxt->error = err;
7614 ctxt->warning = warn;
7615 ctxt->serror = NULL;
7616 ctxt->userData = ctx;
7617 }
7618
7619 /**
7620 * xmlRelaxNGGetParserErrors:
7621 * @ctxt: a Relax-NG validation context
7622 * @err: the error callback result
7623 * @warn: the warning callback result
7624 * @ctx: contextual data for the callbacks result
7625 *
7626 * Get the callback information used to handle errors for a validation context
7627 *
7628 * Returns -1 in case of failure, 0 otherwise.
7629 */
7630 int
xmlRelaxNGGetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,xmlRelaxNGValidityErrorFunc * err,xmlRelaxNGValidityWarningFunc * warn,void ** ctx)7631 xmlRelaxNGGetParserErrors(xmlRelaxNGParserCtxtPtr ctxt,
7632 xmlRelaxNGValidityErrorFunc * err,
7633 xmlRelaxNGValidityWarningFunc * warn, void **ctx)
7634 {
7635 if (ctxt == NULL)
7636 return (-1);
7637 if (err != NULL)
7638 *err = ctxt->error;
7639 if (warn != NULL)
7640 *warn = ctxt->warning;
7641 if (ctx != NULL)
7642 *ctx = ctxt->userData;
7643 return (0);
7644 }
7645
7646 /**
7647 * xmlRelaxNGSetParserStructuredErrors:
7648 * @ctxt: a Relax-NG parser context
7649 * @serror: the error callback
7650 * @ctx: contextual data for the callbacks
7651 *
7652 * Set the callback functions used to handle errors for a parsing context
7653 */
7654 void
xmlRelaxNGSetParserStructuredErrors(xmlRelaxNGParserCtxtPtr ctxt,xmlStructuredErrorFunc serror,void * ctx)7655 xmlRelaxNGSetParserStructuredErrors(xmlRelaxNGParserCtxtPtr ctxt,
7656 xmlStructuredErrorFunc serror,
7657 void *ctx)
7658 {
7659 if (ctxt == NULL)
7660 return;
7661 ctxt->serror = serror;
7662 ctxt->error = NULL;
7663 ctxt->warning = NULL;
7664 ctxt->userData = ctx;
7665 }
7666
7667 #ifdef LIBXML_OUTPUT_ENABLED
7668
7669 /************************************************************************
7670 * *
7671 * Dump back a compiled form *
7672 * *
7673 ************************************************************************/
7674 static void xmlRelaxNGDumpDefine(FILE * output,
7675 xmlRelaxNGDefinePtr define);
7676
7677 /**
7678 * xmlRelaxNGDumpDefines:
7679 * @output: the file output
7680 * @defines: a list of define structures
7681 *
7682 * Dump a RelaxNG structure back
7683 */
7684 static void
xmlRelaxNGDumpDefines(FILE * output,xmlRelaxNGDefinePtr defines)7685 xmlRelaxNGDumpDefines(FILE * output, xmlRelaxNGDefinePtr defines)
7686 {
7687 while (defines != NULL) {
7688 xmlRelaxNGDumpDefine(output, defines);
7689 defines = defines->next;
7690 }
7691 }
7692
7693 /**
7694 * xmlRelaxNGDumpDefine:
7695 * @output: the file output
7696 * @define: a define structure
7697 *
7698 * Dump a RelaxNG structure back
7699 */
7700 static void
xmlRelaxNGDumpDefine(FILE * output,xmlRelaxNGDefinePtr define)7701 xmlRelaxNGDumpDefine(FILE * output, xmlRelaxNGDefinePtr define)
7702 {
7703 if (define == NULL)
7704 return;
7705 switch (define->type) {
7706 case XML_RELAXNG_EMPTY:
7707 fprintf(output, "<empty/>\n");
7708 break;
7709 case XML_RELAXNG_NOT_ALLOWED:
7710 fprintf(output, "<notAllowed/>\n");
7711 break;
7712 case XML_RELAXNG_TEXT:
7713 fprintf(output, "<text/>\n");
7714 break;
7715 case XML_RELAXNG_ELEMENT:
7716 fprintf(output, "<element>\n");
7717 if (define->name != NULL) {
7718 fprintf(output, "<name");
7719 if (define->ns != NULL)
7720 fprintf(output, " ns=\"%s\"", define->ns);
7721 fprintf(output, ">%s</name>\n", define->name);
7722 }
7723 xmlRelaxNGDumpDefines(output, define->attrs);
7724 xmlRelaxNGDumpDefines(output, define->content);
7725 fprintf(output, "</element>\n");
7726 break;
7727 case XML_RELAXNG_LIST:
7728 fprintf(output, "<list>\n");
7729 xmlRelaxNGDumpDefines(output, define->content);
7730 fprintf(output, "</list>\n");
7731 break;
7732 case XML_RELAXNG_ONEORMORE:
7733 fprintf(output, "<oneOrMore>\n");
7734 xmlRelaxNGDumpDefines(output, define->content);
7735 fprintf(output, "</oneOrMore>\n");
7736 break;
7737 case XML_RELAXNG_ZEROORMORE:
7738 fprintf(output, "<zeroOrMore>\n");
7739 xmlRelaxNGDumpDefines(output, define->content);
7740 fprintf(output, "</zeroOrMore>\n");
7741 break;
7742 case XML_RELAXNG_CHOICE:
7743 fprintf(output, "<choice>\n");
7744 xmlRelaxNGDumpDefines(output, define->content);
7745 fprintf(output, "</choice>\n");
7746 break;
7747 case XML_RELAXNG_GROUP:
7748 fprintf(output, "<group>\n");
7749 xmlRelaxNGDumpDefines(output, define->content);
7750 fprintf(output, "</group>\n");
7751 break;
7752 case XML_RELAXNG_INTERLEAVE:
7753 fprintf(output, "<interleave>\n");
7754 xmlRelaxNGDumpDefines(output, define->content);
7755 fprintf(output, "</interleave>\n");
7756 break;
7757 case XML_RELAXNG_OPTIONAL:
7758 fprintf(output, "<optional>\n");
7759 xmlRelaxNGDumpDefines(output, define->content);
7760 fprintf(output, "</optional>\n");
7761 break;
7762 case XML_RELAXNG_ATTRIBUTE:
7763 fprintf(output, "<attribute>\n");
7764 xmlRelaxNGDumpDefines(output, define->content);
7765 fprintf(output, "</attribute>\n");
7766 break;
7767 case XML_RELAXNG_DEF:
7768 fprintf(output, "<define");
7769 if (define->name != NULL)
7770 fprintf(output, " name=\"%s\"", define->name);
7771 fprintf(output, ">\n");
7772 xmlRelaxNGDumpDefines(output, define->content);
7773 fprintf(output, "</define>\n");
7774 break;
7775 case XML_RELAXNG_REF:
7776 fprintf(output, "<ref");
7777 if (define->name != NULL)
7778 fprintf(output, " name=\"%s\"", define->name);
7779 fprintf(output, ">\n");
7780 xmlRelaxNGDumpDefines(output, define->content);
7781 fprintf(output, "</ref>\n");
7782 break;
7783 case XML_RELAXNG_PARENTREF:
7784 fprintf(output, "<parentRef");
7785 if (define->name != NULL)
7786 fprintf(output, " name=\"%s\"", define->name);
7787 fprintf(output, ">\n");
7788 xmlRelaxNGDumpDefines(output, define->content);
7789 fprintf(output, "</parentRef>\n");
7790 break;
7791 case XML_RELAXNG_EXTERNALREF:
7792 fprintf(output, "<externalRef>");
7793 xmlRelaxNGDumpDefines(output, define->content);
7794 fprintf(output, "</externalRef>\n");
7795 break;
7796 case XML_RELAXNG_DATATYPE:
7797 case XML_RELAXNG_VALUE:
7798 TODO break;
7799 case XML_RELAXNG_START:
7800 case XML_RELAXNG_EXCEPT:
7801 case XML_RELAXNG_PARAM:
7802 TODO break;
7803 case XML_RELAXNG_NOOP:
7804 xmlRelaxNGDumpDefines(output, define->content);
7805 break;
7806 }
7807 }
7808
7809 /**
7810 * xmlRelaxNGDumpGrammar:
7811 * @output: the file output
7812 * @grammar: a grammar structure
7813 * @top: is this a top grammar
7814 *
7815 * Dump a RelaxNG structure back
7816 */
7817 static void
xmlRelaxNGDumpGrammar(FILE * output,xmlRelaxNGGrammarPtr grammar,int top)7818 xmlRelaxNGDumpGrammar(FILE * output, xmlRelaxNGGrammarPtr grammar, int top)
7819 {
7820 if (grammar == NULL)
7821 return;
7822
7823 fprintf(output, "<grammar");
7824 if (top)
7825 fprintf(output, " xmlns=\"http://relaxng.org/ns/structure/1.0\"");
7826 switch (grammar->combine) {
7827 case XML_RELAXNG_COMBINE_UNDEFINED:
7828 break;
7829 case XML_RELAXNG_COMBINE_CHOICE:
7830 fprintf(output, " combine=\"choice\"");
7831 break;
7832 case XML_RELAXNG_COMBINE_INTERLEAVE:
7833 fprintf(output, " combine=\"interleave\"");
7834 break;
7835 default:
7836 fprintf(output, " <!-- invalid combine value -->");
7837 }
7838 fprintf(output, ">\n");
7839 if (grammar->start == NULL) {
7840 fprintf(output, " <!-- grammar had no start -->");
7841 } else {
7842 fprintf(output, "<start>\n");
7843 xmlRelaxNGDumpDefine(output, grammar->start);
7844 fprintf(output, "</start>\n");
7845 }
7846 /* TODO ? Dump the defines ? */
7847 fprintf(output, "</grammar>\n");
7848 }
7849
7850 /**
7851 * xmlRelaxNGDump:
7852 * @output: the file output
7853 * @schema: a schema structure
7854 *
7855 * Dump a RelaxNG structure back
7856 */
7857 void
xmlRelaxNGDump(FILE * output,xmlRelaxNGPtr schema)7858 xmlRelaxNGDump(FILE * output, xmlRelaxNGPtr schema)
7859 {
7860 if (output == NULL)
7861 return;
7862 if (schema == NULL) {
7863 fprintf(output, "RelaxNG empty or failed to compile\n");
7864 return;
7865 }
7866 fprintf(output, "RelaxNG: ");
7867 if (schema->doc == NULL) {
7868 fprintf(output, "no document\n");
7869 } else if (schema->doc->URL != NULL) {
7870 fprintf(output, "%s\n", schema->doc->URL);
7871 } else {
7872 fprintf(output, "\n");
7873 }
7874 if (schema->topgrammar == NULL) {
7875 fprintf(output, "RelaxNG has no top grammar\n");
7876 return;
7877 }
7878 xmlRelaxNGDumpGrammar(output, schema->topgrammar, 1);
7879 }
7880
7881 /**
7882 * xmlRelaxNGDumpTree:
7883 * @output: the file output
7884 * @schema: a schema structure
7885 *
7886 * Dump the transformed RelaxNG tree.
7887 */
7888 void
xmlRelaxNGDumpTree(FILE * output,xmlRelaxNGPtr schema)7889 xmlRelaxNGDumpTree(FILE * output, xmlRelaxNGPtr schema)
7890 {
7891 if (output == NULL)
7892 return;
7893 if (schema == NULL) {
7894 fprintf(output, "RelaxNG empty or failed to compile\n");
7895 return;
7896 }
7897 if (schema->doc == NULL) {
7898 fprintf(output, "no document\n");
7899 } else {
7900 xmlDocDump(output, schema->doc);
7901 }
7902 }
7903 #endif /* LIBXML_OUTPUT_ENABLED */
7904
7905 /************************************************************************
7906 * *
7907 * Validation of compiled content *
7908 * *
7909 ************************************************************************/
7910 static int xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,
7911 xmlRelaxNGDefinePtr define);
7912
7913 /**
7914 * xmlRelaxNGValidateCompiledCallback:
7915 * @exec: the regular expression instance
7916 * @token: the token which matched
7917 * @transdata: callback data, the define for the subelement if available
7918 @ @inputdata: callback data, the Relax NG validation context
7919 *
7920 * Handle the callback and if needed validate the element children.
7921 */
7922 static void
xmlRelaxNGValidateCompiledCallback(xmlRegExecCtxtPtr exec ATTRIBUTE_UNUSED,const xmlChar * token,void * transdata,void * inputdata)7923 xmlRelaxNGValidateCompiledCallback(xmlRegExecCtxtPtr exec ATTRIBUTE_UNUSED,
7924 const xmlChar * token,
7925 void *transdata, void *inputdata)
7926 {
7927 xmlRelaxNGValidCtxtPtr ctxt = (xmlRelaxNGValidCtxtPtr) inputdata;
7928 xmlRelaxNGDefinePtr define = (xmlRelaxNGDefinePtr) transdata;
7929 int ret;
7930
7931 #ifdef DEBUG_COMPILE
7932 xmlGenericError(xmlGenericErrorContext,
7933 "Compiled callback for: '%s'\n", token);
7934 #endif
7935 if (ctxt == NULL) {
7936 fprintf(stderr, "callback on %s missing context\n", token);
7937 return;
7938 }
7939 if (define == NULL) {
7940 if (token[0] == '#')
7941 return;
7942 fprintf(stderr, "callback on %s missing define\n", token);
7943 if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
7944 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
7945 return;
7946 }
7947 if ((ctxt == NULL) || (define == NULL)) {
7948 fprintf(stderr, "callback on %s missing info\n", token);
7949 if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
7950 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
7951 return;
7952 } else if (define->type != XML_RELAXNG_ELEMENT) {
7953 fprintf(stderr, "callback on %s define is not element\n", token);
7954 if (ctxt->errNo == XML_RELAXNG_OK)
7955 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
7956 return;
7957 }
7958 ret = xmlRelaxNGValidateDefinition(ctxt, define);
7959 if (ret != 0)
7960 ctxt->perr = ret;
7961 }
7962
7963 /**
7964 * xmlRelaxNGValidateCompiledContent:
7965 * @ctxt: the RelaxNG validation context
7966 * @regexp: the regular expression as compiled
7967 * @content: list of children to test against the regexp
7968 *
7969 * Validate the content model of an element or start using the regexp
7970 *
7971 * Returns 0 in case of success, -1 in case of error.
7972 */
7973 static int
xmlRelaxNGValidateCompiledContent(xmlRelaxNGValidCtxtPtr ctxt,xmlRegexpPtr regexp,xmlNodePtr content)7974 xmlRelaxNGValidateCompiledContent(xmlRelaxNGValidCtxtPtr ctxt,
7975 xmlRegexpPtr regexp, xmlNodePtr content)
7976 {
7977 xmlRegExecCtxtPtr exec;
7978 xmlNodePtr cur;
7979 int ret = 0;
7980 int oldperr;
7981
7982 if ((ctxt == NULL) || (regexp == NULL))
7983 return (-1);
7984 oldperr = ctxt->perr;
7985 exec = xmlRegNewExecCtxt(regexp,
7986 xmlRelaxNGValidateCompiledCallback, ctxt);
7987 ctxt->perr = 0;
7988 cur = content;
7989 while (cur != NULL) {
7990 ctxt->state->seq = cur;
7991 switch (cur->type) {
7992 case XML_TEXT_NODE:
7993 case XML_CDATA_SECTION_NODE:
7994 if (xmlIsBlankNode(cur))
7995 break;
7996 ret = xmlRegExecPushString(exec, BAD_CAST "#text", ctxt);
7997 if (ret < 0) {
7998 VALID_ERR2(XML_RELAXNG_ERR_TEXTWRONG,
7999 cur->parent->name);
8000 }
8001 break;
8002 case XML_ELEMENT_NODE:
8003 if (cur->ns != NULL) {
8004 ret = xmlRegExecPushString2(exec, cur->name,
8005 cur->ns->href, ctxt);
8006 } else {
8007 ret = xmlRegExecPushString(exec, cur->name, ctxt);
8008 }
8009 if (ret < 0) {
8010 VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, cur->name);
8011 }
8012 break;
8013 default:
8014 break;
8015 }
8016 if (ret < 0)
8017 break;
8018 /*
8019 * Switch to next element
8020 */
8021 cur = cur->next;
8022 }
8023 ret = xmlRegExecPushString(exec, NULL, NULL);
8024 if (ret == 1) {
8025 ret = 0;
8026 ctxt->state->seq = NULL;
8027 } else if (ret == 0) {
8028 /*
8029 * TODO: get some of the names needed to exit the current state of exec
8030 */
8031 VALID_ERR2(XML_RELAXNG_ERR_NOELEM, BAD_CAST "");
8032 ret = -1;
8033 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
8034 xmlRelaxNGDumpValidError(ctxt);
8035 } else {
8036 ret = -1;
8037 }
8038 xmlRegFreeExecCtxt(exec);
8039 /*
8040 * There might be content model errors outside of the pure
8041 * regexp validation, e.g. for attribute values.
8042 */
8043 if ((ret == 0) && (ctxt->perr != 0)) {
8044 ret = ctxt->perr;
8045 }
8046 ctxt->perr = oldperr;
8047 return (ret);
8048 }
8049
8050 /************************************************************************
8051 * *
8052 * Progressive validation of when possible *
8053 * *
8054 ************************************************************************/
8055 static int xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,
8056 xmlRelaxNGDefinePtr defines);
8057 static int xmlRelaxNGValidateElementEnd(xmlRelaxNGValidCtxtPtr ctxt,
8058 int dolog);
8059 static void xmlRelaxNGLogBestError(xmlRelaxNGValidCtxtPtr ctxt);
8060
8061 /**
8062 * xmlRelaxNGElemPush:
8063 * @ctxt: the validation context
8064 * @exec: the regexp runtime for the new content model
8065 *
8066 * Push a new regexp for the current node content model on the stack
8067 *
8068 * Returns 0 in case of success and -1 in case of error.
8069 */
8070 static int
xmlRelaxNGElemPush(xmlRelaxNGValidCtxtPtr ctxt,xmlRegExecCtxtPtr exec)8071 xmlRelaxNGElemPush(xmlRelaxNGValidCtxtPtr ctxt, xmlRegExecCtxtPtr exec)
8072 {
8073 if (ctxt->elemTab == NULL) {
8074 ctxt->elemMax = 10;
8075 ctxt->elemTab = (xmlRegExecCtxtPtr *) xmlMalloc(ctxt->elemMax *
8076 sizeof
8077 (xmlRegExecCtxtPtr));
8078 if (ctxt->elemTab == NULL) {
8079 xmlRngVErrMemory(ctxt, "validating\n");
8080 return (-1);
8081 }
8082 }
8083 if (ctxt->elemNr >= ctxt->elemMax) {
8084 ctxt->elemMax *= 2;
8085 ctxt->elemTab = (xmlRegExecCtxtPtr *) xmlRealloc(ctxt->elemTab,
8086 ctxt->elemMax *
8087 sizeof
8088 (xmlRegExecCtxtPtr));
8089 if (ctxt->elemTab == NULL) {
8090 xmlRngVErrMemory(ctxt, "validating\n");
8091 return (-1);
8092 }
8093 }
8094 ctxt->elemTab[ctxt->elemNr++] = exec;
8095 ctxt->elem = exec;
8096 return (0);
8097 }
8098
8099 /**
8100 * xmlRelaxNGElemPop:
8101 * @ctxt: the validation context
8102 *
8103 * Pop the regexp of the current node content model from the stack
8104 *
8105 * Returns the exec or NULL if empty
8106 */
8107 static xmlRegExecCtxtPtr
xmlRelaxNGElemPop(xmlRelaxNGValidCtxtPtr ctxt)8108 xmlRelaxNGElemPop(xmlRelaxNGValidCtxtPtr ctxt)
8109 {
8110 xmlRegExecCtxtPtr ret;
8111
8112 if (ctxt->elemNr <= 0)
8113 return (NULL);
8114 ctxt->elemNr--;
8115 ret = ctxt->elemTab[ctxt->elemNr];
8116 ctxt->elemTab[ctxt->elemNr] = NULL;
8117 if (ctxt->elemNr > 0)
8118 ctxt->elem = ctxt->elemTab[ctxt->elemNr - 1];
8119 else
8120 ctxt->elem = NULL;
8121 return (ret);
8122 }
8123
8124 /**
8125 * xmlRelaxNGValidateProgressiveCallback:
8126 * @exec: the regular expression instance
8127 * @token: the token which matched
8128 * @transdata: callback data, the define for the subelement if available
8129 @ @inputdata: callback data, the Relax NG validation context
8130 *
8131 * Handle the callback and if needed validate the element children.
8132 * some of the in/out informations are passed via the context in @inputdata.
8133 */
8134 static void
xmlRelaxNGValidateProgressiveCallback(xmlRegExecCtxtPtr exec ATTRIBUTE_UNUSED,const xmlChar * token,void * transdata,void * inputdata)8135 xmlRelaxNGValidateProgressiveCallback(xmlRegExecCtxtPtr exec
8136 ATTRIBUTE_UNUSED,
8137 const xmlChar * token,
8138 void *transdata, void *inputdata)
8139 {
8140 xmlRelaxNGValidCtxtPtr ctxt = (xmlRelaxNGValidCtxtPtr) inputdata;
8141 xmlRelaxNGDefinePtr define = (xmlRelaxNGDefinePtr) transdata;
8142 xmlRelaxNGValidStatePtr state, oldstate;
8143 xmlNodePtr node;
8144 int ret = 0, oldflags;
8145
8146 #ifdef DEBUG_PROGRESSIVE
8147 xmlGenericError(xmlGenericErrorContext,
8148 "Progressive callback for: '%s'\n", token);
8149 #endif
8150 if (ctxt == NULL) {
8151 fprintf(stderr, "callback on %s missing context\n", token);
8152 return;
8153 }
8154 node = ctxt->pnode;
8155 ctxt->pstate = 1;
8156 if (define == NULL) {
8157 if (token[0] == '#')
8158 return;
8159 fprintf(stderr, "callback on %s missing define\n", token);
8160 if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
8161 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
8162 ctxt->pstate = -1;
8163 return;
8164 }
8165 if ((ctxt == NULL) || (define == NULL)) {
8166 fprintf(stderr, "callback on %s missing info\n", token);
8167 if ((ctxt != NULL) && (ctxt->errNo == XML_RELAXNG_OK))
8168 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
8169 ctxt->pstate = -1;
8170 return;
8171 } else if (define->type != XML_RELAXNG_ELEMENT) {
8172 fprintf(stderr, "callback on %s define is not element\n", token);
8173 if (ctxt->errNo == XML_RELAXNG_OK)
8174 ctxt->errNo = XML_RELAXNG_ERR_INTERNAL;
8175 ctxt->pstate = -1;
8176 return;
8177 }
8178 if (node->type != XML_ELEMENT_NODE) {
8179 VALID_ERR(XML_RELAXNG_ERR_NOTELEM);
8180 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
8181 xmlRelaxNGDumpValidError(ctxt);
8182 ctxt->pstate = -1;
8183 return;
8184 }
8185 if (define->contModel == NULL) {
8186 /*
8187 * this node cannot be validated in a streamable fashion
8188 */
8189 #ifdef DEBUG_PROGRESSIVE
8190 xmlGenericError(xmlGenericErrorContext,
8191 "Element '%s' validation is not streamable\n",
8192 token);
8193 #endif
8194 ctxt->pstate = 0;
8195 ctxt->pdef = define;
8196 return;
8197 }
8198 exec = xmlRegNewExecCtxt(define->contModel,
8199 xmlRelaxNGValidateProgressiveCallback, ctxt);
8200 if (exec == NULL) {
8201 ctxt->pstate = -1;
8202 return;
8203 }
8204 xmlRelaxNGElemPush(ctxt, exec);
8205
8206 /*
8207 * Validate the attributes part of the content.
8208 */
8209 state = xmlRelaxNGNewValidState(ctxt, node);
8210 if (state == NULL) {
8211 ctxt->pstate = -1;
8212 return;
8213 }
8214 oldstate = ctxt->state;
8215 ctxt->state = state;
8216 if (define->attrs != NULL) {
8217 ret = xmlRelaxNGValidateAttributeList(ctxt, define->attrs);
8218 if (ret != 0) {
8219 ctxt->pstate = -1;
8220 VALID_ERR2(XML_RELAXNG_ERR_ATTRVALID, node->name);
8221 }
8222 }
8223 if (ctxt->state != NULL) {
8224 ctxt->state->seq = NULL;
8225 ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
8226 if (ret != 0) {
8227 ctxt->pstate = -1;
8228 }
8229 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
8230 } else if (ctxt->states != NULL) {
8231 int tmp = -1, i;
8232
8233 oldflags = ctxt->flags;
8234
8235 for (i = 0; i < ctxt->states->nbState; i++) {
8236 state = ctxt->states->tabState[i];
8237 ctxt->state = state;
8238 ctxt->state->seq = NULL;
8239
8240 if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
8241 tmp = 0;
8242 break;
8243 }
8244 }
8245 if (tmp != 0) {
8246 /*
8247 * validation error, log the message for the "best" one
8248 */
8249 ctxt->flags |= FLAGS_IGNORABLE;
8250 xmlRelaxNGLogBestError(ctxt);
8251 }
8252 for (i = 0; i < ctxt->states->nbState; i++) {
8253 xmlRelaxNGFreeValidState(ctxt, ctxt->states->tabState[i]);
8254 }
8255 xmlRelaxNGFreeStates(ctxt, ctxt->states);
8256 ctxt->states = NULL;
8257 if ((ret == 0) && (tmp == -1))
8258 ctxt->pstate = -1;
8259 ctxt->flags = oldflags;
8260 }
8261 if (ctxt->pstate == -1) {
8262 if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
8263 xmlRelaxNGDumpValidError(ctxt);
8264 }
8265 }
8266 ctxt->state = oldstate;
8267 }
8268
8269 /**
8270 * xmlRelaxNGValidatePushElement:
8271 * @ctxt: the validation context
8272 * @doc: a document instance
8273 * @elem: an element instance
8274 *
8275 * Push a new element start on the RelaxNG validation stack.
8276 *
8277 * returns 1 if no validation problem was found or 0 if validating the
8278 * element requires a full node, and -1 in case of error.
8279 */
8280 int
xmlRelaxNGValidatePushElement(xmlRelaxNGValidCtxtPtr ctxt,xmlDocPtr doc ATTRIBUTE_UNUSED,xmlNodePtr elem)8281 xmlRelaxNGValidatePushElement(xmlRelaxNGValidCtxtPtr ctxt,
8282 xmlDocPtr doc ATTRIBUTE_UNUSED,
8283 xmlNodePtr elem)
8284 {
8285 int ret = 1;
8286
8287 if ((ctxt == NULL) || (elem == NULL))
8288 return (-1);
8289
8290 #ifdef DEBUG_PROGRESSIVE
8291 xmlGenericError(xmlGenericErrorContext, "PushElem %s\n", elem->name);
8292 #endif
8293 if (ctxt->elem == 0) {
8294 xmlRelaxNGPtr schema;
8295 xmlRelaxNGGrammarPtr grammar;
8296 xmlRegExecCtxtPtr exec;
8297 xmlRelaxNGDefinePtr define;
8298
8299 schema = ctxt->schema;
8300 if (schema == NULL) {
8301 VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
8302 return (-1);
8303 }
8304 grammar = schema->topgrammar;
8305 if ((grammar == NULL) || (grammar->start == NULL)) {
8306 VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
8307 return (-1);
8308 }
8309 define = grammar->start;
8310 if (define->contModel == NULL) {
8311 ctxt->pdef = define;
8312 return (0);
8313 }
8314 exec = xmlRegNewExecCtxt(define->contModel,
8315 xmlRelaxNGValidateProgressiveCallback,
8316 ctxt);
8317 if (exec == NULL) {
8318 return (-1);
8319 }
8320 xmlRelaxNGElemPush(ctxt, exec);
8321 }
8322 ctxt->pnode = elem;
8323 ctxt->pstate = 0;
8324 if (elem->ns != NULL) {
8325 ret =
8326 xmlRegExecPushString2(ctxt->elem, elem->name, elem->ns->href,
8327 ctxt);
8328 } else {
8329 ret = xmlRegExecPushString(ctxt->elem, elem->name, ctxt);
8330 }
8331 if (ret < 0) {
8332 VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, elem->name);
8333 } else {
8334 if (ctxt->pstate == 0)
8335 ret = 0;
8336 else if (ctxt->pstate < 0)
8337 ret = -1;
8338 else
8339 ret = 1;
8340 }
8341 #ifdef DEBUG_PROGRESSIVE
8342 if (ret < 0)
8343 xmlGenericError(xmlGenericErrorContext, "PushElem %s failed\n",
8344 elem->name);
8345 #endif
8346 return (ret);
8347 }
8348
8349 /**
8350 * xmlRelaxNGValidatePushCData:
8351 * @ctxt: the RelaxNG validation context
8352 * @data: some character data read
8353 * @len: the length of the data
8354 *
8355 * check the CData parsed for validation in the current stack
8356 *
8357 * returns 1 if no validation problem was found or -1 otherwise
8358 */
8359 int
xmlRelaxNGValidatePushCData(xmlRelaxNGValidCtxtPtr ctxt,const xmlChar * data,int len ATTRIBUTE_UNUSED)8360 xmlRelaxNGValidatePushCData(xmlRelaxNGValidCtxtPtr ctxt,
8361 const xmlChar * data, int len ATTRIBUTE_UNUSED)
8362 {
8363 int ret = 1;
8364
8365 if ((ctxt == NULL) || (ctxt->elem == NULL) || (data == NULL))
8366 return (-1);
8367
8368 #ifdef DEBUG_PROGRESSIVE
8369 xmlGenericError(xmlGenericErrorContext, "CDATA %s %d\n", data, len);
8370 #endif
8371
8372 while (*data != 0) {
8373 if (!IS_BLANK_CH(*data))
8374 break;
8375 data++;
8376 }
8377 if (*data == 0)
8378 return (1);
8379
8380 ret = xmlRegExecPushString(ctxt->elem, BAD_CAST "#text", ctxt);
8381 if (ret < 0) {
8382 VALID_ERR2(XML_RELAXNG_ERR_TEXTWRONG, BAD_CAST " TODO ");
8383 #ifdef DEBUG_PROGRESSIVE
8384 xmlGenericError(xmlGenericErrorContext, "CDATA failed\n");
8385 #endif
8386
8387 return (-1);
8388 }
8389 return (1);
8390 }
8391
8392 /**
8393 * xmlRelaxNGValidatePopElement:
8394 * @ctxt: the RelaxNG validation context
8395 * @doc: a document instance
8396 * @elem: an element instance
8397 *
8398 * Pop the element end from the RelaxNG validation stack.
8399 *
8400 * returns 1 if no validation problem was found or 0 otherwise
8401 */
8402 int
xmlRelaxNGValidatePopElement(xmlRelaxNGValidCtxtPtr ctxt,xmlDocPtr doc ATTRIBUTE_UNUSED,xmlNodePtr elem)8403 xmlRelaxNGValidatePopElement(xmlRelaxNGValidCtxtPtr ctxt,
8404 xmlDocPtr doc ATTRIBUTE_UNUSED,
8405 xmlNodePtr elem)
8406 {
8407 int ret;
8408 xmlRegExecCtxtPtr exec;
8409
8410 if ((ctxt == NULL) || (ctxt->elem == NULL) || (elem == NULL))
8411 return (-1);
8412 #ifdef DEBUG_PROGRESSIVE
8413 xmlGenericError(xmlGenericErrorContext, "PopElem %s\n", elem->name);
8414 #endif
8415 /*
8416 * verify that we reached a terminal state of the content model.
8417 */
8418 exec = xmlRelaxNGElemPop(ctxt);
8419 ret = xmlRegExecPushString(exec, NULL, NULL);
8420 if (ret == 0) {
8421 /*
8422 * TODO: get some of the names needed to exit the current state of exec
8423 */
8424 VALID_ERR2(XML_RELAXNG_ERR_NOELEM, BAD_CAST "");
8425 ret = -1;
8426 } else if (ret < 0) {
8427 ret = -1;
8428 } else {
8429 ret = 1;
8430 }
8431 xmlRegFreeExecCtxt(exec);
8432 #ifdef DEBUG_PROGRESSIVE
8433 if (ret < 0)
8434 xmlGenericError(xmlGenericErrorContext, "PopElem %s failed\n",
8435 elem->name);
8436 #endif
8437 return (ret);
8438 }
8439
8440 /**
8441 * xmlRelaxNGValidateFullElement:
8442 * @ctxt: the validation context
8443 * @doc: a document instance
8444 * @elem: an element instance
8445 *
8446 * Validate a full subtree when xmlRelaxNGValidatePushElement() returned
8447 * 0 and the content of the node has been expanded.
8448 *
8449 * returns 1 if no validation problem was found or -1 in case of error.
8450 */
8451 int
xmlRelaxNGValidateFullElement(xmlRelaxNGValidCtxtPtr ctxt,xmlDocPtr doc ATTRIBUTE_UNUSED,xmlNodePtr elem)8452 xmlRelaxNGValidateFullElement(xmlRelaxNGValidCtxtPtr ctxt,
8453 xmlDocPtr doc ATTRIBUTE_UNUSED,
8454 xmlNodePtr elem)
8455 {
8456 int ret;
8457 xmlRelaxNGValidStatePtr state;
8458
8459 if ((ctxt == NULL) || (ctxt->pdef == NULL) || (elem == NULL))
8460 return (-1);
8461 #ifdef DEBUG_PROGRESSIVE
8462 xmlGenericError(xmlGenericErrorContext, "FullElem %s\n", elem->name);
8463 #endif
8464 state = xmlRelaxNGNewValidState(ctxt, elem->parent);
8465 if (state == NULL) {
8466 return (-1);
8467 }
8468 state->seq = elem;
8469 ctxt->state = state;
8470 ctxt->errNo = XML_RELAXNG_OK;
8471 ret = xmlRelaxNGValidateDefinition(ctxt, ctxt->pdef);
8472 if ((ret != 0) || (ctxt->errNo != XML_RELAXNG_OK))
8473 ret = -1;
8474 else
8475 ret = 1;
8476 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
8477 ctxt->state = NULL;
8478 #ifdef DEBUG_PROGRESSIVE
8479 if (ret < 0)
8480 xmlGenericError(xmlGenericErrorContext, "FullElem %s failed\n",
8481 elem->name);
8482 #endif
8483 return (ret);
8484 }
8485
8486 /************************************************************************
8487 * *
8488 * Generic interpreted validation implementation *
8489 * *
8490 ************************************************************************/
8491 static int xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,
8492 xmlRelaxNGDefinePtr define);
8493
8494 /**
8495 * xmlRelaxNGSkipIgnored:
8496 * @ctxt: a schema validation context
8497 * @node: the top node.
8498 *
8499 * Skip ignorable nodes in that context
8500 *
8501 * Returns the new sibling or NULL in case of error.
8502 */
8503 static xmlNodePtr
xmlRelaxNGSkipIgnored(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,xmlNodePtr node)8504 xmlRelaxNGSkipIgnored(xmlRelaxNGValidCtxtPtr ctxt ATTRIBUTE_UNUSED,
8505 xmlNodePtr node)
8506 {
8507 /*
8508 * TODO complete and handle entities
8509 */
8510 while ((node != NULL) &&
8511 ((node->type == XML_COMMENT_NODE) ||
8512 (node->type == XML_PI_NODE) ||
8513 (node->type == XML_XINCLUDE_START) ||
8514 (node->type == XML_XINCLUDE_END) ||
8515 (((node->type == XML_TEXT_NODE) ||
8516 (node->type == XML_CDATA_SECTION_NODE)) &&
8517 ((ctxt->flags & FLAGS_MIXED_CONTENT) ||
8518 (IS_BLANK_NODE(node)))))) {
8519 node = node->next;
8520 }
8521 return (node);
8522 }
8523
8524 /**
8525 * xmlRelaxNGNormalize:
8526 * @ctxt: a schema validation context
8527 * @str: the string to normalize
8528 *
8529 * Implements the normalizeWhiteSpace( s ) function from
8530 * section 6.2.9 of the spec
8531 *
8532 * Returns the new string or NULL in case of error.
8533 */
8534 static xmlChar *
xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt,const xmlChar * str)8535 xmlRelaxNGNormalize(xmlRelaxNGValidCtxtPtr ctxt, const xmlChar * str)
8536 {
8537 xmlChar *ret, *p;
8538 const xmlChar *tmp;
8539 int len;
8540
8541 if (str == NULL)
8542 return (NULL);
8543 tmp = str;
8544 while (*tmp != 0)
8545 tmp++;
8546 len = tmp - str;
8547
8548 ret = (xmlChar *) xmlMallocAtomic((len + 1) * sizeof(xmlChar));
8549 if (ret == NULL) {
8550 xmlRngVErrMemory(ctxt, "validating\n");
8551 return (NULL);
8552 }
8553 p = ret;
8554 while (IS_BLANK_CH(*str))
8555 str++;
8556 while (*str != 0) {
8557 if (IS_BLANK_CH(*str)) {
8558 while (IS_BLANK_CH(*str))
8559 str++;
8560 if (*str == 0)
8561 break;
8562 *p++ = ' ';
8563 } else
8564 *p++ = *str++;
8565 }
8566 *p = 0;
8567 return (ret);
8568 }
8569
8570 /**
8571 * xmlRelaxNGValidateDatatype:
8572 * @ctxt: a Relax-NG validation context
8573 * @value: the string value
8574 * @type: the datatype definition
8575 * @node: the node
8576 *
8577 * Validate the given value against the dataype
8578 *
8579 * Returns 0 if the validation succeeded or an error code.
8580 */
8581 static int
xmlRelaxNGValidateDatatype(xmlRelaxNGValidCtxtPtr ctxt,const xmlChar * value,xmlRelaxNGDefinePtr define,xmlNodePtr node)8582 xmlRelaxNGValidateDatatype(xmlRelaxNGValidCtxtPtr ctxt,
8583 const xmlChar * value,
8584 xmlRelaxNGDefinePtr define, xmlNodePtr node)
8585 {
8586 int ret, tmp;
8587 xmlRelaxNGTypeLibraryPtr lib;
8588 void *result = NULL;
8589 xmlRelaxNGDefinePtr cur;
8590
8591 if ((define == NULL) || (define->data == NULL)) {
8592 return (-1);
8593 }
8594 lib = (xmlRelaxNGTypeLibraryPtr) define->data;
8595 if (lib->check != NULL) {
8596 if ((define->attrs != NULL) &&
8597 (define->attrs->type == XML_RELAXNG_PARAM)) {
8598 ret =
8599 lib->check(lib->data, define->name, value, &result, node);
8600 } else {
8601 ret = lib->check(lib->data, define->name, value, NULL, node);
8602 }
8603 } else
8604 ret = -1;
8605 if (ret < 0) {
8606 VALID_ERR2(XML_RELAXNG_ERR_TYPE, define->name);
8607 if ((result != NULL) && (lib != NULL) && (lib->freef != NULL))
8608 lib->freef(lib->data, result);
8609 return (-1);
8610 } else if (ret == 1) {
8611 ret = 0;
8612 } else if (ret == 2) {
8613 VALID_ERR2P(XML_RELAXNG_ERR_DUPID, value);
8614 } else {
8615 VALID_ERR3P(XML_RELAXNG_ERR_TYPEVAL, define->name, value);
8616 ret = -1;
8617 }
8618 cur = define->attrs;
8619 while ((ret == 0) && (cur != NULL) && (cur->type == XML_RELAXNG_PARAM)) {
8620 if (lib->facet != NULL) {
8621 tmp = lib->facet(lib->data, define->name, cur->name,
8622 cur->value, value, result);
8623 if (tmp != 0)
8624 ret = -1;
8625 }
8626 cur = cur->next;
8627 }
8628 if ((ret == 0) && (define->content != NULL)) {
8629 const xmlChar *oldvalue, *oldendvalue;
8630
8631 oldvalue = ctxt->state->value;
8632 oldendvalue = ctxt->state->endvalue;
8633 ctxt->state->value = (xmlChar *) value;
8634 ctxt->state->endvalue = NULL;
8635 ret = xmlRelaxNGValidateValue(ctxt, define->content);
8636 ctxt->state->value = (xmlChar *) oldvalue;
8637 ctxt->state->endvalue = (xmlChar *) oldendvalue;
8638 }
8639 if ((result != NULL) && (lib != NULL) && (lib->freef != NULL))
8640 lib->freef(lib->data, result);
8641 return (ret);
8642 }
8643
8644 /**
8645 * xmlRelaxNGNextValue:
8646 * @ctxt: a Relax-NG validation context
8647 *
8648 * Skip to the next value when validating within a list
8649 *
8650 * Returns 0 if the operation succeeded or an error code.
8651 */
8652 static int
xmlRelaxNGNextValue(xmlRelaxNGValidCtxtPtr ctxt)8653 xmlRelaxNGNextValue(xmlRelaxNGValidCtxtPtr ctxt)
8654 {
8655 xmlChar *cur;
8656
8657 cur = ctxt->state->value;
8658 if ((cur == NULL) || (ctxt->state->endvalue == NULL)) {
8659 ctxt->state->value = NULL;
8660 ctxt->state->endvalue = NULL;
8661 return (0);
8662 }
8663 while (*cur != 0)
8664 cur++;
8665 while ((cur != ctxt->state->endvalue) && (*cur == 0))
8666 cur++;
8667 if (cur == ctxt->state->endvalue)
8668 ctxt->state->value = NULL;
8669 else
8670 ctxt->state->value = cur;
8671 return (0);
8672 }
8673
8674 /**
8675 * xmlRelaxNGValidateValueList:
8676 * @ctxt: a Relax-NG validation context
8677 * @defines: the list of definitions to verify
8678 *
8679 * Validate the given set of definitions for the current value
8680 *
8681 * Returns 0 if the validation succeeded or an error code.
8682 */
8683 static int
xmlRelaxNGValidateValueList(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr defines)8684 xmlRelaxNGValidateValueList(xmlRelaxNGValidCtxtPtr ctxt,
8685 xmlRelaxNGDefinePtr defines)
8686 {
8687 int ret = 0;
8688
8689 while (defines != NULL) {
8690 ret = xmlRelaxNGValidateValue(ctxt, defines);
8691 if (ret != 0)
8692 break;
8693 defines = defines->next;
8694 }
8695 return (ret);
8696 }
8697
8698 /**
8699 * xmlRelaxNGValidateValue:
8700 * @ctxt: a Relax-NG validation context
8701 * @define: the definition to verify
8702 *
8703 * Validate the given definition for the current value
8704 *
8705 * Returns 0 if the validation succeeded or an error code.
8706 */
8707 static int
xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define)8708 xmlRelaxNGValidateValue(xmlRelaxNGValidCtxtPtr ctxt,
8709 xmlRelaxNGDefinePtr define)
8710 {
8711 int ret = 0, oldflags;
8712 xmlChar *value;
8713
8714 value = ctxt->state->value;
8715 switch (define->type) {
8716 case XML_RELAXNG_EMPTY:{
8717 if ((value != NULL) && (value[0] != 0)) {
8718 int idx = 0;
8719
8720 while (IS_BLANK_CH(value[idx]))
8721 idx++;
8722 if (value[idx] != 0)
8723 ret = -1;
8724 }
8725 break;
8726 }
8727 case XML_RELAXNG_TEXT:
8728 break;
8729 case XML_RELAXNG_VALUE:{
8730 if (!xmlStrEqual(value, define->value)) {
8731 if (define->name != NULL) {
8732 xmlRelaxNGTypeLibraryPtr lib;
8733
8734 lib = (xmlRelaxNGTypeLibraryPtr) define->data;
8735 if ((lib != NULL) && (lib->comp != NULL)) {
8736 ret = lib->comp(lib->data, define->name,
8737 define->value, define->node,
8738 (void *) define->attrs,
8739 value, ctxt->state->node);
8740 } else
8741 ret = -1;
8742 if (ret < 0) {
8743 VALID_ERR2(XML_RELAXNG_ERR_TYPECMP,
8744 define->name);
8745 return (-1);
8746 } else if (ret == 1) {
8747 ret = 0;
8748 } else {
8749 ret = -1;
8750 }
8751 } else {
8752 xmlChar *nval, *nvalue;
8753
8754 /*
8755 * TODO: trivial optimizations are possible by
8756 * computing at compile-time
8757 */
8758 nval = xmlRelaxNGNormalize(ctxt, define->value);
8759 nvalue = xmlRelaxNGNormalize(ctxt, value);
8760
8761 if ((nval == NULL) || (nvalue == NULL) ||
8762 (!xmlStrEqual(nval, nvalue)))
8763 ret = -1;
8764 if (nval != NULL)
8765 xmlFree(nval);
8766 if (nvalue != NULL)
8767 xmlFree(nvalue);
8768 }
8769 }
8770 if (ret == 0)
8771 xmlRelaxNGNextValue(ctxt);
8772 break;
8773 }
8774 case XML_RELAXNG_DATATYPE:{
8775 ret = xmlRelaxNGValidateDatatype(ctxt, value, define,
8776 ctxt->state->seq);
8777 if (ret == 0)
8778 xmlRelaxNGNextValue(ctxt);
8779
8780 break;
8781 }
8782 case XML_RELAXNG_CHOICE:{
8783 xmlRelaxNGDefinePtr list = define->content;
8784 xmlChar *oldvalue;
8785
8786 oldflags = ctxt->flags;
8787 ctxt->flags |= FLAGS_IGNORABLE;
8788
8789 oldvalue = ctxt->state->value;
8790 while (list != NULL) {
8791 ret = xmlRelaxNGValidateValue(ctxt, list);
8792 if (ret == 0) {
8793 break;
8794 }
8795 ctxt->state->value = oldvalue;
8796 list = list->next;
8797 }
8798 ctxt->flags = oldflags;
8799 if (ret != 0) {
8800 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
8801 xmlRelaxNGDumpValidError(ctxt);
8802 } else {
8803 if (ctxt->errNr > 0)
8804 xmlRelaxNGPopErrors(ctxt, 0);
8805 }
8806 break;
8807 }
8808 case XML_RELAXNG_LIST:{
8809 xmlRelaxNGDefinePtr list = define->content;
8810 xmlChar *oldvalue, *oldend, *val, *cur;
8811
8812 #ifdef DEBUG_LIST
8813 int nb_values = 0;
8814 #endif
8815
8816 oldvalue = ctxt->state->value;
8817 oldend = ctxt->state->endvalue;
8818
8819 val = xmlStrdup(oldvalue);
8820 if (val == NULL) {
8821 val = xmlStrdup(BAD_CAST "");
8822 }
8823 if (val == NULL) {
8824 VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
8825 return (-1);
8826 }
8827 cur = val;
8828 while (*cur != 0) {
8829 if (IS_BLANK_CH(*cur)) {
8830 *cur = 0;
8831 cur++;
8832 #ifdef DEBUG_LIST
8833 nb_values++;
8834 #endif
8835 while (IS_BLANK_CH(*cur))
8836 *cur++ = 0;
8837 } else
8838 cur++;
8839 }
8840 #ifdef DEBUG_LIST
8841 xmlGenericError(xmlGenericErrorContext,
8842 "list value: '%s' found %d items\n",
8843 oldvalue, nb_values);
8844 nb_values = 0;
8845 #endif
8846 ctxt->state->endvalue = cur;
8847 cur = val;
8848 while ((*cur == 0) && (cur != ctxt->state->endvalue))
8849 cur++;
8850
8851 ctxt->state->value = cur;
8852
8853 while (list != NULL) {
8854 if (ctxt->state->value == ctxt->state->endvalue)
8855 ctxt->state->value = NULL;
8856 ret = xmlRelaxNGValidateValue(ctxt, list);
8857 if (ret != 0) {
8858 #ifdef DEBUG_LIST
8859 xmlGenericError(xmlGenericErrorContext,
8860 "Failed to validate value: '%s' with %d rule\n",
8861 ctxt->state->value, nb_values);
8862 #endif
8863 break;
8864 }
8865 #ifdef DEBUG_LIST
8866 nb_values++;
8867 #endif
8868 list = list->next;
8869 }
8870
8871 if ((ret == 0) && (ctxt->state->value != NULL) &&
8872 (ctxt->state->value != ctxt->state->endvalue)) {
8873 VALID_ERR2(XML_RELAXNG_ERR_LISTEXTRA,
8874 ctxt->state->value);
8875 ret = -1;
8876 }
8877 xmlFree(val);
8878 ctxt->state->value = oldvalue;
8879 ctxt->state->endvalue = oldend;
8880 break;
8881 }
8882 case XML_RELAXNG_ONEORMORE:
8883 ret = xmlRelaxNGValidateValueList(ctxt, define->content);
8884 if (ret != 0) {
8885 break;
8886 }
8887 /* no break on purpose */
8888 case XML_RELAXNG_ZEROORMORE:{
8889 xmlChar *cur, *temp;
8890
8891 if ((ctxt->state->value == NULL) ||
8892 (*ctxt->state->value == 0)) {
8893 ret = 0;
8894 break;
8895 }
8896 oldflags = ctxt->flags;
8897 ctxt->flags |= FLAGS_IGNORABLE;
8898 cur = ctxt->state->value;
8899 temp = NULL;
8900 while ((cur != NULL) && (cur != ctxt->state->endvalue) &&
8901 (temp != cur)) {
8902 temp = cur;
8903 ret =
8904 xmlRelaxNGValidateValueList(ctxt, define->content);
8905 if (ret != 0) {
8906 ctxt->state->value = temp;
8907 ret = 0;
8908 break;
8909 }
8910 cur = ctxt->state->value;
8911 }
8912 ctxt->flags = oldflags;
8913 if (ctxt->errNr > 0)
8914 xmlRelaxNGPopErrors(ctxt, 0);
8915 break;
8916 }
8917 case XML_RELAXNG_OPTIONAL:{
8918 xmlChar *temp;
8919
8920 if ((ctxt->state->value == NULL) ||
8921 (*ctxt->state->value == 0)) {
8922 ret = 0;
8923 break;
8924 }
8925 oldflags = ctxt->flags;
8926 ctxt->flags |= FLAGS_IGNORABLE;
8927 temp = ctxt->state->value;
8928 ret = xmlRelaxNGValidateValue(ctxt, define->content);
8929 ctxt->flags = oldflags;
8930 if (ret != 0) {
8931 ctxt->state->value = temp;
8932 if (ctxt->errNr > 0)
8933 xmlRelaxNGPopErrors(ctxt, 0);
8934 ret = 0;
8935 break;
8936 }
8937 if (ctxt->errNr > 0)
8938 xmlRelaxNGPopErrors(ctxt, 0);
8939 break;
8940 }
8941 case XML_RELAXNG_EXCEPT:{
8942 xmlRelaxNGDefinePtr list;
8943
8944 list = define->content;
8945 while (list != NULL) {
8946 ret = xmlRelaxNGValidateValue(ctxt, list);
8947 if (ret == 0) {
8948 ret = -1;
8949 break;
8950 } else
8951 ret = 0;
8952 list = list->next;
8953 }
8954 break;
8955 }
8956 case XML_RELAXNG_DEF:
8957 case XML_RELAXNG_GROUP:{
8958 xmlRelaxNGDefinePtr list;
8959
8960 list = define->content;
8961 while (list != NULL) {
8962 ret = xmlRelaxNGValidateValue(ctxt, list);
8963 if (ret != 0) {
8964 ret = -1;
8965 break;
8966 } else
8967 ret = 0;
8968 list = list->next;
8969 }
8970 break;
8971 }
8972 case XML_RELAXNG_REF:
8973 case XML_RELAXNG_PARENTREF:
8974 if (define->content == NULL) {
8975 VALID_ERR(XML_RELAXNG_ERR_NODEFINE);
8976 ret = -1;
8977 } else {
8978 ret = xmlRelaxNGValidateValue(ctxt, define->content);
8979 }
8980 break;
8981 default:
8982 TODO ret = -1;
8983 }
8984 return (ret);
8985 }
8986
8987 /**
8988 * xmlRelaxNGValidateValueContent:
8989 * @ctxt: a Relax-NG validation context
8990 * @defines: the list of definitions to verify
8991 *
8992 * Validate the given definitions for the current value
8993 *
8994 * Returns 0 if the validation succeeded or an error code.
8995 */
8996 static int
xmlRelaxNGValidateValueContent(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr defines)8997 xmlRelaxNGValidateValueContent(xmlRelaxNGValidCtxtPtr ctxt,
8998 xmlRelaxNGDefinePtr defines)
8999 {
9000 int ret = 0;
9001
9002 while (defines != NULL) {
9003 ret = xmlRelaxNGValidateValue(ctxt, defines);
9004 if (ret != 0)
9005 break;
9006 defines = defines->next;
9007 }
9008 return (ret);
9009 }
9010
9011 /**
9012 * xmlRelaxNGAttributeMatch:
9013 * @ctxt: a Relax-NG validation context
9014 * @define: the definition to check
9015 * @prop: the attribute
9016 *
9017 * Check if the attribute matches the definition nameClass
9018 *
9019 * Returns 1 if the attribute matches, 0 if no, or -1 in case of error
9020 */
9021 static int
xmlRelaxNGAttributeMatch(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define,xmlAttrPtr prop)9022 xmlRelaxNGAttributeMatch(xmlRelaxNGValidCtxtPtr ctxt,
9023 xmlRelaxNGDefinePtr define, xmlAttrPtr prop)
9024 {
9025 int ret;
9026
9027 if (define->name != NULL) {
9028 if (!xmlStrEqual(define->name, prop->name))
9029 return (0);
9030 }
9031 if (define->ns != NULL) {
9032 if (define->ns[0] == 0) {
9033 if (prop->ns != NULL)
9034 return (0);
9035 } else {
9036 if ((prop->ns == NULL) ||
9037 (!xmlStrEqual(define->ns, prop->ns->href)))
9038 return (0);
9039 }
9040 }
9041 if (define->nameClass == NULL)
9042 return (1);
9043 define = define->nameClass;
9044 if (define->type == XML_RELAXNG_EXCEPT) {
9045 xmlRelaxNGDefinePtr list;
9046
9047 list = define->content;
9048 while (list != NULL) {
9049 ret = xmlRelaxNGAttributeMatch(ctxt, list, prop);
9050 if (ret == 1)
9051 return (0);
9052 if (ret < 0)
9053 return (ret);
9054 list = list->next;
9055 }
9056 } else if (define->type == XML_RELAXNG_CHOICE) {
9057 xmlRelaxNGDefinePtr list;
9058
9059 list = define->nameClass;
9060 while (list != NULL) {
9061 ret = xmlRelaxNGAttributeMatch(ctxt, list, prop);
9062 if (ret == 1)
9063 return (1);
9064 if (ret < 0)
9065 return (ret);
9066 list = list->next;
9067 }
9068 return (0);
9069 } else {
9070 TODO}
9071 return (1);
9072 }
9073
9074 /**
9075 * xmlRelaxNGValidateAttribute:
9076 * @ctxt: a Relax-NG validation context
9077 * @define: the definition to verify
9078 *
9079 * Validate the given attribute definition for that node
9080 *
9081 * Returns 0 if the validation succeeded or an error code.
9082 */
9083 static int
xmlRelaxNGValidateAttribute(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define)9084 xmlRelaxNGValidateAttribute(xmlRelaxNGValidCtxtPtr ctxt,
9085 xmlRelaxNGDefinePtr define)
9086 {
9087 int ret = 0, i;
9088 xmlChar *value, *oldvalue;
9089 xmlAttrPtr prop = NULL, tmp;
9090 xmlNodePtr oldseq;
9091
9092 if (ctxt->state->nbAttrLeft <= 0)
9093 return (-1);
9094 if (define->name != NULL) {
9095 for (i = 0; i < ctxt->state->nbAttrs; i++) {
9096 tmp = ctxt->state->attrs[i];
9097 if ((tmp != NULL) && (xmlStrEqual(define->name, tmp->name))) {
9098 if ((((define->ns == NULL) || (define->ns[0] == 0)) &&
9099 (tmp->ns == NULL)) ||
9100 ((tmp->ns != NULL) &&
9101 (xmlStrEqual(define->ns, tmp->ns->href)))) {
9102 prop = tmp;
9103 break;
9104 }
9105 }
9106 }
9107 if (prop != NULL) {
9108 value = xmlNodeListGetString(prop->doc, prop->children, 1);
9109 oldvalue = ctxt->state->value;
9110 oldseq = ctxt->state->seq;
9111 ctxt->state->seq = (xmlNodePtr) prop;
9112 ctxt->state->value = value;
9113 ctxt->state->endvalue = NULL;
9114 ret = xmlRelaxNGValidateValueContent(ctxt, define->content);
9115 if (ctxt->state->value != NULL)
9116 value = ctxt->state->value;
9117 if (value != NULL)
9118 xmlFree(value);
9119 ctxt->state->value = oldvalue;
9120 ctxt->state->seq = oldseq;
9121 if (ret == 0) {
9122 /*
9123 * flag the attribute as processed
9124 */
9125 ctxt->state->attrs[i] = NULL;
9126 ctxt->state->nbAttrLeft--;
9127 }
9128 } else {
9129 ret = -1;
9130 }
9131 #ifdef DEBUG
9132 xmlGenericError(xmlGenericErrorContext,
9133 "xmlRelaxNGValidateAttribute(%s): %d\n",
9134 define->name, ret);
9135 #endif
9136 } else {
9137 for (i = 0; i < ctxt->state->nbAttrs; i++) {
9138 tmp = ctxt->state->attrs[i];
9139 if ((tmp != NULL) &&
9140 (xmlRelaxNGAttributeMatch(ctxt, define, tmp) == 1)) {
9141 prop = tmp;
9142 break;
9143 }
9144 }
9145 if (prop != NULL) {
9146 value = xmlNodeListGetString(prop->doc, prop->children, 1);
9147 oldvalue = ctxt->state->value;
9148 oldseq = ctxt->state->seq;
9149 ctxt->state->seq = (xmlNodePtr) prop;
9150 ctxt->state->value = value;
9151 ret = xmlRelaxNGValidateValueContent(ctxt, define->content);
9152 if (ctxt->state->value != NULL)
9153 value = ctxt->state->value;
9154 if (value != NULL)
9155 xmlFree(value);
9156 ctxt->state->value = oldvalue;
9157 ctxt->state->seq = oldseq;
9158 if (ret == 0) {
9159 /*
9160 * flag the attribute as processed
9161 */
9162 ctxt->state->attrs[i] = NULL;
9163 ctxt->state->nbAttrLeft--;
9164 }
9165 } else {
9166 ret = -1;
9167 }
9168 #ifdef DEBUG
9169 if (define->ns != NULL) {
9170 xmlGenericError(xmlGenericErrorContext,
9171 "xmlRelaxNGValidateAttribute(nsName ns = %s): %d\n",
9172 define->ns, ret);
9173 } else {
9174 xmlGenericError(xmlGenericErrorContext,
9175 "xmlRelaxNGValidateAttribute(anyName): %d\n",
9176 ret);
9177 }
9178 #endif
9179 }
9180
9181 return (ret);
9182 }
9183
9184 /**
9185 * xmlRelaxNGValidateAttributeList:
9186 * @ctxt: a Relax-NG validation context
9187 * @define: the list of definition to verify
9188 *
9189 * Validate the given node against the list of attribute definitions
9190 *
9191 * Returns 0 if the validation succeeded or an error code.
9192 */
9193 static int
xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr defines)9194 xmlRelaxNGValidateAttributeList(xmlRelaxNGValidCtxtPtr ctxt,
9195 xmlRelaxNGDefinePtr defines)
9196 {
9197 int ret = 0, res;
9198 int needmore = 0;
9199 xmlRelaxNGDefinePtr cur;
9200
9201 cur = defines;
9202 while (cur != NULL) {
9203 if (cur->type == XML_RELAXNG_ATTRIBUTE) {
9204 if (xmlRelaxNGValidateAttribute(ctxt, cur) != 0)
9205 ret = -1;
9206 } else
9207 needmore = 1;
9208 cur = cur->next;
9209 }
9210 if (!needmore)
9211 return (ret);
9212 cur = defines;
9213 while (cur != NULL) {
9214 if (cur->type != XML_RELAXNG_ATTRIBUTE) {
9215 if ((ctxt->state != NULL) || (ctxt->states != NULL)) {
9216 res = xmlRelaxNGValidateDefinition(ctxt, cur);
9217 if (res < 0)
9218 ret = -1;
9219 } else {
9220 VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
9221 return (-1);
9222 }
9223 if (res == -1) /* continues on -2 */
9224 break;
9225 }
9226 cur = cur->next;
9227 }
9228
9229 return (ret);
9230 }
9231
9232 /**
9233 * xmlRelaxNGNodeMatchesList:
9234 * @node: the node
9235 * @list: a NULL terminated array of definitions
9236 *
9237 * Check if a node can be matched by one of the definitions
9238 *
9239 * Returns 1 if matches 0 otherwise
9240 */
9241 static int
xmlRelaxNGNodeMatchesList(xmlNodePtr node,xmlRelaxNGDefinePtr * list)9242 xmlRelaxNGNodeMatchesList(xmlNodePtr node, xmlRelaxNGDefinePtr * list)
9243 {
9244 xmlRelaxNGDefinePtr cur;
9245 int i = 0, tmp;
9246
9247 if ((node == NULL) || (list == NULL))
9248 return (0);
9249
9250 cur = list[i++];
9251 while (cur != NULL) {
9252 if ((node->type == XML_ELEMENT_NODE) &&
9253 (cur->type == XML_RELAXNG_ELEMENT)) {
9254 tmp = xmlRelaxNGElementMatch(NULL, cur, node);
9255 if (tmp == 1)
9256 return (1);
9257 } else if (((node->type == XML_TEXT_NODE) ||
9258 (node->type == XML_CDATA_SECTION_NODE)) &&
9259 (cur->type == XML_RELAXNG_TEXT)) {
9260 return (1);
9261 }
9262 cur = list[i++];
9263 }
9264 return (0);
9265 }
9266
9267 /**
9268 * xmlRelaxNGValidateInterleave:
9269 * @ctxt: a Relax-NG validation context
9270 * @define: the definition to verify
9271 *
9272 * Validate an interleave definition for a node.
9273 *
9274 * Returns 0 if the validation succeeded or an error code.
9275 */
9276 static int
xmlRelaxNGValidateInterleave(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define)9277 xmlRelaxNGValidateInterleave(xmlRelaxNGValidCtxtPtr ctxt,
9278 xmlRelaxNGDefinePtr define)
9279 {
9280 int ret = 0, i, nbgroups;
9281 int errNr = ctxt->errNr;
9282 int oldflags;
9283
9284 xmlRelaxNGValidStatePtr oldstate;
9285 xmlRelaxNGPartitionPtr partitions;
9286 xmlRelaxNGInterleaveGroupPtr group = NULL;
9287 xmlNodePtr cur, start, last = NULL, lastchg = NULL, lastelem;
9288 xmlNodePtr *list = NULL, *lasts = NULL;
9289
9290 if (define->data != NULL) {
9291 partitions = (xmlRelaxNGPartitionPtr) define->data;
9292 nbgroups = partitions->nbgroups;
9293 } else {
9294 VALID_ERR(XML_RELAXNG_ERR_INTERNODATA);
9295 return (-1);
9296 }
9297 /*
9298 * Optimizations for MIXED
9299 */
9300 oldflags = ctxt->flags;
9301 if (define->dflags & IS_MIXED) {
9302 ctxt->flags |= FLAGS_MIXED_CONTENT;
9303 if (nbgroups == 2) {
9304 /*
9305 * this is a pure <mixed> case
9306 */
9307 if (ctxt->state != NULL)
9308 ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt,
9309 ctxt->state->seq);
9310 if (partitions->groups[0]->rule->type == XML_RELAXNG_TEXT)
9311 ret = xmlRelaxNGValidateDefinition(ctxt,
9312 partitions->groups[1]->
9313 rule);
9314 else
9315 ret = xmlRelaxNGValidateDefinition(ctxt,
9316 partitions->groups[0]->
9317 rule);
9318 if (ret == 0) {
9319 if (ctxt->state != NULL)
9320 ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt,
9321 ctxt->state->
9322 seq);
9323 }
9324 ctxt->flags = oldflags;
9325 return (ret);
9326 }
9327 }
9328
9329 /*
9330 * Build arrays to store the first and last node of the chain
9331 * pertaining to each group
9332 */
9333 list = (xmlNodePtr *) xmlMalloc(nbgroups * sizeof(xmlNodePtr));
9334 if (list == NULL) {
9335 xmlRngVErrMemory(ctxt, "validating\n");
9336 return (-1);
9337 }
9338 memset(list, 0, nbgroups * sizeof(xmlNodePtr));
9339 lasts = (xmlNodePtr *) xmlMalloc(nbgroups * sizeof(xmlNodePtr));
9340 if (lasts == NULL) {
9341 xmlRngVErrMemory(ctxt, "validating\n");
9342 return (-1);
9343 }
9344 memset(lasts, 0, nbgroups * sizeof(xmlNodePtr));
9345
9346 /*
9347 * Walk the sequence of children finding the right group and
9348 * sorting them in sequences.
9349 */
9350 cur = ctxt->state->seq;
9351 cur = xmlRelaxNGSkipIgnored(ctxt, cur);
9352 start = cur;
9353 while (cur != NULL) {
9354 ctxt->state->seq = cur;
9355 if ((partitions->triage != NULL) &&
9356 (partitions->flags & IS_DETERMINIST)) {
9357 void *tmp = NULL;
9358
9359 if ((cur->type == XML_TEXT_NODE) ||
9360 (cur->type == XML_CDATA_SECTION_NODE)) {
9361 tmp = xmlHashLookup2(partitions->triage, BAD_CAST "#text",
9362 NULL);
9363 } else if (cur->type == XML_ELEMENT_NODE) {
9364 if (cur->ns != NULL) {
9365 tmp = xmlHashLookup2(partitions->triage, cur->name,
9366 cur->ns->href);
9367 if (tmp == NULL)
9368 tmp = xmlHashLookup2(partitions->triage,
9369 BAD_CAST "#any",
9370 cur->ns->href);
9371 } else
9372 tmp =
9373 xmlHashLookup2(partitions->triage, cur->name,
9374 NULL);
9375 if (tmp == NULL)
9376 tmp =
9377 xmlHashLookup2(partitions->triage, BAD_CAST "#any",
9378 NULL);
9379 }
9380
9381 if (tmp == NULL) {
9382 i = nbgroups;
9383 } else {
9384 i = ((long) tmp) - 1;
9385 if (partitions->flags & IS_NEEDCHECK) {
9386 group = partitions->groups[i];
9387 if (!xmlRelaxNGNodeMatchesList(cur, group->defs))
9388 i = nbgroups;
9389 }
9390 }
9391 } else {
9392 for (i = 0; i < nbgroups; i++) {
9393 group = partitions->groups[i];
9394 if (group == NULL)
9395 continue;
9396 if (xmlRelaxNGNodeMatchesList(cur, group->defs))
9397 break;
9398 }
9399 }
9400 /*
9401 * We break as soon as an element not matched is found
9402 */
9403 if (i >= nbgroups) {
9404 break;
9405 }
9406 if (lasts[i] != NULL) {
9407 lasts[i]->next = cur;
9408 lasts[i] = cur;
9409 } else {
9410 list[i] = cur;
9411 lasts[i] = cur;
9412 }
9413 if (cur->next != NULL)
9414 lastchg = cur->next;
9415 else
9416 lastchg = cur;
9417 cur = xmlRelaxNGSkipIgnored(ctxt, cur->next);
9418 }
9419 if (ret != 0) {
9420 VALID_ERR(XML_RELAXNG_ERR_INTERSEQ);
9421 ret = -1;
9422 goto done;
9423 }
9424 lastelem = cur;
9425 oldstate = ctxt->state;
9426 for (i = 0; i < nbgroups; i++) {
9427 ctxt->state = xmlRelaxNGCopyValidState(ctxt, oldstate);
9428 if (ctxt->state == NULL) {
9429 ret = -1;
9430 break;
9431 }
9432 group = partitions->groups[i];
9433 if (lasts[i] != NULL) {
9434 last = lasts[i]->next;
9435 lasts[i]->next = NULL;
9436 }
9437 ctxt->state->seq = list[i];
9438 ret = xmlRelaxNGValidateDefinition(ctxt, group->rule);
9439 if (ret != 0)
9440 break;
9441 if (ctxt->state != NULL) {
9442 cur = ctxt->state->seq;
9443 cur = xmlRelaxNGSkipIgnored(ctxt, cur);
9444 xmlRelaxNGFreeValidState(ctxt, oldstate);
9445 oldstate = ctxt->state;
9446 ctxt->state = NULL;
9447 if (cur != NULL) {
9448 VALID_ERR2(XML_RELAXNG_ERR_INTEREXTRA, cur->name);
9449 ret = -1;
9450 ctxt->state = oldstate;
9451 goto done;
9452 }
9453 } else if (ctxt->states != NULL) {
9454 int j;
9455 int found = 0;
9456 int best = -1;
9457 int lowattr = -1;
9458
9459 /*
9460 * PBM: what happen if there is attributes checks in the interleaves
9461 */
9462
9463 for (j = 0; j < ctxt->states->nbState; j++) {
9464 cur = ctxt->states->tabState[j]->seq;
9465 cur = xmlRelaxNGSkipIgnored(ctxt, cur);
9466 if (cur == NULL) {
9467 if (found == 0) {
9468 lowattr = ctxt->states->tabState[j]->nbAttrLeft;
9469 best = j;
9470 }
9471 found = 1;
9472 if (ctxt->states->tabState[j]->nbAttrLeft <= lowattr) {
9473 /* try to keep the latest one to mach old heuristic */
9474 lowattr = ctxt->states->tabState[j]->nbAttrLeft;
9475 best = j;
9476 }
9477 if (lowattr == 0)
9478 break;
9479 } else if (found == 0) {
9480 if (lowattr == -1) {
9481 lowattr = ctxt->states->tabState[j]->nbAttrLeft;
9482 best = j;
9483 } else
9484 if (ctxt->states->tabState[j]->nbAttrLeft <= lowattr) {
9485 /* try to keep the latest one to mach old heuristic */
9486 lowattr = ctxt->states->tabState[j]->nbAttrLeft;
9487 best = j;
9488 }
9489 }
9490 }
9491 /*
9492 * BIG PBM: here we pick only one restarting point :-(
9493 */
9494 if (ctxt->states->nbState > 0) {
9495 xmlRelaxNGFreeValidState(ctxt, oldstate);
9496 if (best != -1) {
9497 oldstate = ctxt->states->tabState[best];
9498 ctxt->states->tabState[best] = NULL;
9499 } else {
9500 oldstate =
9501 ctxt->states->tabState[ctxt->states->nbState - 1];
9502 ctxt->states->tabState[ctxt->states->nbState - 1] = NULL;
9503 ctxt->states->nbState--;
9504 }
9505 }
9506 for (j = 0; j < ctxt->states->nbState ; j++) {
9507 xmlRelaxNGFreeValidState(ctxt, ctxt->states->tabState[j]);
9508 }
9509 xmlRelaxNGFreeStates(ctxt, ctxt->states);
9510 ctxt->states = NULL;
9511 if (found == 0) {
9512 if (cur == NULL) {
9513 VALID_ERR2(XML_RELAXNG_ERR_INTEREXTRA,
9514 (const xmlChar *) "noname");
9515 } else {
9516 VALID_ERR2(XML_RELAXNG_ERR_INTEREXTRA, cur->name);
9517 }
9518 ret = -1;
9519 ctxt->state = oldstate;
9520 goto done;
9521 }
9522 } else {
9523 ret = -1;
9524 break;
9525 }
9526 if (lasts[i] != NULL) {
9527 lasts[i]->next = last;
9528 }
9529 }
9530 if (ctxt->state != NULL)
9531 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
9532 ctxt->state = oldstate;
9533 ctxt->state->seq = lastelem;
9534 if (ret != 0) {
9535 VALID_ERR(XML_RELAXNG_ERR_INTERSEQ);
9536 ret = -1;
9537 goto done;
9538 }
9539
9540 done:
9541 ctxt->flags = oldflags;
9542 /*
9543 * builds the next links chain from the prev one
9544 */
9545 cur = lastchg;
9546 while (cur != NULL) {
9547 if ((cur == start) || (cur->prev == NULL))
9548 break;
9549 cur->prev->next = cur;
9550 cur = cur->prev;
9551 }
9552 if (ret == 0) {
9553 if (ctxt->errNr > errNr)
9554 xmlRelaxNGPopErrors(ctxt, errNr);
9555 }
9556
9557 xmlFree(list);
9558 xmlFree(lasts);
9559 return (ret);
9560 }
9561
9562 /**
9563 * xmlRelaxNGValidateDefinitionList:
9564 * @ctxt: a Relax-NG validation context
9565 * @define: the list of definition to verify
9566 *
9567 * Validate the given node content against the (list) of definitions
9568 *
9569 * Returns 0 if the validation succeeded or an error code.
9570 */
9571 static int
xmlRelaxNGValidateDefinitionList(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr defines)9572 xmlRelaxNGValidateDefinitionList(xmlRelaxNGValidCtxtPtr ctxt,
9573 xmlRelaxNGDefinePtr defines)
9574 {
9575 int ret = 0, res;
9576
9577
9578 if (defines == NULL) {
9579 VALID_ERR2(XML_RELAXNG_ERR_INTERNAL,
9580 BAD_CAST "NULL definition list");
9581 return (-1);
9582 }
9583 while (defines != NULL) {
9584 if ((ctxt->state != NULL) || (ctxt->states != NULL)) {
9585 res = xmlRelaxNGValidateDefinition(ctxt, defines);
9586 if (res < 0)
9587 ret = -1;
9588 } else {
9589 VALID_ERR(XML_RELAXNG_ERR_NOSTATE);
9590 return (-1);
9591 }
9592 if (res == -1) /* continues on -2 */
9593 break;
9594 defines = defines->next;
9595 }
9596
9597 return (ret);
9598 }
9599
9600 /**
9601 * xmlRelaxNGElementMatch:
9602 * @ctxt: a Relax-NG validation context
9603 * @define: the definition to check
9604 * @elem: the element
9605 *
9606 * Check if the element matches the definition nameClass
9607 *
9608 * Returns 1 if the element matches, 0 if no, or -1 in case of error
9609 */
9610 static int
xmlRelaxNGElementMatch(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define,xmlNodePtr elem)9611 xmlRelaxNGElementMatch(xmlRelaxNGValidCtxtPtr ctxt,
9612 xmlRelaxNGDefinePtr define, xmlNodePtr elem)
9613 {
9614 int ret = 0, oldflags = 0;
9615
9616 if (define->name != NULL) {
9617 if (!xmlStrEqual(elem->name, define->name)) {
9618 VALID_ERR3(XML_RELAXNG_ERR_ELEMNAME, define->name, elem->name);
9619 return (0);
9620 }
9621 }
9622 if ((define->ns != NULL) && (define->ns[0] != 0)) {
9623 if (elem->ns == NULL) {
9624 VALID_ERR2(XML_RELAXNG_ERR_ELEMNONS, elem->name);
9625 return (0);
9626 } else if (!xmlStrEqual(elem->ns->href, define->ns)) {
9627 VALID_ERR3(XML_RELAXNG_ERR_ELEMWRONGNS,
9628 elem->name, define->ns);
9629 return (0);
9630 }
9631 } else if ((elem->ns != NULL) && (define->ns != NULL) &&
9632 (define->name == NULL)) {
9633 VALID_ERR2(XML_RELAXNG_ERR_ELEMEXTRANS, elem->name);
9634 return (0);
9635 } else if ((elem->ns != NULL) && (define->name != NULL)) {
9636 VALID_ERR2(XML_RELAXNG_ERR_ELEMEXTRANS, define->name);
9637 return (0);
9638 }
9639
9640 if (define->nameClass == NULL)
9641 return (1);
9642
9643 define = define->nameClass;
9644 if (define->type == XML_RELAXNG_EXCEPT) {
9645 xmlRelaxNGDefinePtr list;
9646
9647 if (ctxt != NULL) {
9648 oldflags = ctxt->flags;
9649 ctxt->flags |= FLAGS_IGNORABLE;
9650 }
9651
9652 list = define->content;
9653 while (list != NULL) {
9654 ret = xmlRelaxNGElementMatch(ctxt, list, elem);
9655 if (ret == 1) {
9656 if (ctxt != NULL)
9657 ctxt->flags = oldflags;
9658 return (0);
9659 }
9660 if (ret < 0) {
9661 if (ctxt != NULL)
9662 ctxt->flags = oldflags;
9663 return (ret);
9664 }
9665 list = list->next;
9666 }
9667 ret = 1;
9668 if (ctxt != NULL) {
9669 ctxt->flags = oldflags;
9670 }
9671 } else if (define->type == XML_RELAXNG_CHOICE) {
9672 xmlRelaxNGDefinePtr list;
9673
9674 if (ctxt != NULL) {
9675 oldflags = ctxt->flags;
9676 ctxt->flags |= FLAGS_IGNORABLE;
9677 }
9678
9679 list = define->nameClass;
9680 while (list != NULL) {
9681 ret = xmlRelaxNGElementMatch(ctxt, list, elem);
9682 if (ret == 1) {
9683 if (ctxt != NULL)
9684 ctxt->flags = oldflags;
9685 return (1);
9686 }
9687 if (ret < 0) {
9688 if (ctxt != NULL)
9689 ctxt->flags = oldflags;
9690 return (ret);
9691 }
9692 list = list->next;
9693 }
9694 if (ctxt != NULL) {
9695 if (ret != 0) {
9696 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
9697 xmlRelaxNGDumpValidError(ctxt);
9698 } else {
9699 if (ctxt->errNr > 0)
9700 xmlRelaxNGPopErrors(ctxt, 0);
9701 }
9702 }
9703 ret = 0;
9704 if (ctxt != NULL) {
9705 ctxt->flags = oldflags;
9706 }
9707 } else {
9708 TODO ret = -1;
9709 }
9710 return (ret);
9711 }
9712
9713 /**
9714 * xmlRelaxNGBestState:
9715 * @ctxt: a Relax-NG validation context
9716 *
9717 * Find the "best" state in the ctxt->states list of states to report
9718 * errors about. I.e. a state with no element left in the child list
9719 * or the one with the less attributes left.
9720 * This is called only if a falidation error was detected
9721 *
9722 * Returns the index of the "best" state or -1 in case of error
9723 */
9724 static int
xmlRelaxNGBestState(xmlRelaxNGValidCtxtPtr ctxt)9725 xmlRelaxNGBestState(xmlRelaxNGValidCtxtPtr ctxt)
9726 {
9727 xmlRelaxNGValidStatePtr state;
9728 int i, tmp;
9729 int best = -1;
9730 int value = 1000000;
9731
9732 if ((ctxt == NULL) || (ctxt->states == NULL) ||
9733 (ctxt->states->nbState <= 0))
9734 return (-1);
9735
9736 for (i = 0; i < ctxt->states->nbState; i++) {
9737 state = ctxt->states->tabState[i];
9738 if (state == NULL)
9739 continue;
9740 if (state->seq != NULL) {
9741 if ((best == -1) || (value > 100000)) {
9742 value = 100000;
9743 best = i;
9744 }
9745 } else {
9746 tmp = state->nbAttrLeft;
9747 if ((best == -1) || (value > tmp)) {
9748 value = tmp;
9749 best = i;
9750 }
9751 }
9752 }
9753 return (best);
9754 }
9755
9756 /**
9757 * xmlRelaxNGLogBestError:
9758 * @ctxt: a Relax-NG validation context
9759 *
9760 * Find the "best" state in the ctxt->states list of states to report
9761 * errors about and log it.
9762 */
9763 static void
xmlRelaxNGLogBestError(xmlRelaxNGValidCtxtPtr ctxt)9764 xmlRelaxNGLogBestError(xmlRelaxNGValidCtxtPtr ctxt)
9765 {
9766 int best;
9767
9768 if ((ctxt == NULL) || (ctxt->states == NULL) ||
9769 (ctxt->states->nbState <= 0))
9770 return;
9771
9772 best = xmlRelaxNGBestState(ctxt);
9773 if ((best >= 0) && (best < ctxt->states->nbState)) {
9774 ctxt->state = ctxt->states->tabState[best];
9775
9776 xmlRelaxNGValidateElementEnd(ctxt, 1);
9777 }
9778 }
9779
9780 /**
9781 * xmlRelaxNGValidateElementEnd:
9782 * @ctxt: a Relax-NG validation context
9783 * @dolog: indicate that error logging should be done
9784 *
9785 * Validate the end of the element, implements check that
9786 * there is nothing left not consumed in the element content
9787 * or in the attribute list.
9788 *
9789 * Returns 0 if the validation succeeded or an error code.
9790 */
9791 static int
xmlRelaxNGValidateElementEnd(xmlRelaxNGValidCtxtPtr ctxt,int dolog)9792 xmlRelaxNGValidateElementEnd(xmlRelaxNGValidCtxtPtr ctxt, int dolog)
9793 {
9794 int i;
9795 xmlRelaxNGValidStatePtr state;
9796
9797 state = ctxt->state;
9798 if (state->seq != NULL) {
9799 state->seq = xmlRelaxNGSkipIgnored(ctxt, state->seq);
9800 if (state->seq != NULL) {
9801 if (dolog) {
9802 VALID_ERR3(XML_RELAXNG_ERR_EXTRACONTENT,
9803 state->node->name, state->seq->name);
9804 }
9805 return (-1);
9806 }
9807 }
9808 for (i = 0; i < state->nbAttrs; i++) {
9809 if (state->attrs[i] != NULL) {
9810 if (dolog) {
9811 VALID_ERR3(XML_RELAXNG_ERR_INVALIDATTR,
9812 state->attrs[i]->name, state->node->name);
9813 }
9814 return (-1 - i);
9815 }
9816 }
9817 return (0);
9818 }
9819
9820 /**
9821 * xmlRelaxNGValidateState:
9822 * @ctxt: a Relax-NG validation context
9823 * @define: the definition to verify
9824 *
9825 * Validate the current state against the definition
9826 *
9827 * Returns 0 if the validation succeeded or an error code.
9828 */
9829 static int
xmlRelaxNGValidateState(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define)9830 xmlRelaxNGValidateState(xmlRelaxNGValidCtxtPtr ctxt,
9831 xmlRelaxNGDefinePtr define)
9832 {
9833 xmlNodePtr node;
9834 int ret = 0, i, tmp, oldflags, errNr;
9835 xmlRelaxNGValidStatePtr oldstate = NULL, state;
9836
9837 if (define == NULL) {
9838 VALID_ERR(XML_RELAXNG_ERR_NODEFINE);
9839 return (-1);
9840 }
9841
9842 if (ctxt->state != NULL) {
9843 node = ctxt->state->seq;
9844 } else {
9845 node = NULL;
9846 }
9847 #ifdef DEBUG
9848 for (i = 0; i < ctxt->depth; i++)
9849 xmlGenericError(xmlGenericErrorContext, " ");
9850 xmlGenericError(xmlGenericErrorContext,
9851 "Start validating %s ", xmlRelaxNGDefName(define));
9852 if (define->name != NULL)
9853 xmlGenericError(xmlGenericErrorContext, "%s ", define->name);
9854 if ((node != NULL) && (node->name != NULL))
9855 xmlGenericError(xmlGenericErrorContext, "on %s\n", node->name);
9856 else
9857 xmlGenericError(xmlGenericErrorContext, "\n");
9858 #endif
9859 ctxt->depth++;
9860 switch (define->type) {
9861 case XML_RELAXNG_EMPTY:
9862 xmlRelaxNGSkipIgnored(ctxt, node);
9863 ret = 0;
9864 break;
9865 case XML_RELAXNG_NOT_ALLOWED:
9866 ret = -1;
9867 break;
9868 case XML_RELAXNG_TEXT:
9869 while ((node != NULL) &&
9870 ((node->type == XML_TEXT_NODE) ||
9871 (node->type == XML_COMMENT_NODE) ||
9872 (node->type == XML_PI_NODE) ||
9873 (node->type == XML_CDATA_SECTION_NODE)))
9874 node = node->next;
9875 ctxt->state->seq = node;
9876 break;
9877 case XML_RELAXNG_ELEMENT:
9878 errNr = ctxt->errNr;
9879 node = xmlRelaxNGSkipIgnored(ctxt, node);
9880 if (node == NULL) {
9881 VALID_ERR2(XML_RELAXNG_ERR_NOELEM, define->name);
9882 ret = -1;
9883 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
9884 xmlRelaxNGDumpValidError(ctxt);
9885 break;
9886 }
9887 if (node->type != XML_ELEMENT_NODE) {
9888 VALID_ERR(XML_RELAXNG_ERR_NOTELEM);
9889 ret = -1;
9890 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
9891 xmlRelaxNGDumpValidError(ctxt);
9892 break;
9893 }
9894 /*
9895 * This node was already validated successfully against
9896 * this definition.
9897 */
9898 if (node->psvi == define) {
9899 ctxt->state->seq = xmlRelaxNGSkipIgnored(ctxt, node->next);
9900 if (ctxt->errNr > errNr)
9901 xmlRelaxNGPopErrors(ctxt, errNr);
9902 if (ctxt->errNr != 0) {
9903 while ((ctxt->err != NULL) &&
9904 (((ctxt->err->err == XML_RELAXNG_ERR_ELEMNAME)
9905 && (xmlStrEqual(ctxt->err->arg2, node->name)))
9906 ||
9907 ((ctxt->err->err ==
9908 XML_RELAXNG_ERR_ELEMEXTRANS)
9909 && (xmlStrEqual(ctxt->err->arg1, node->name)))
9910 || (ctxt->err->err == XML_RELAXNG_ERR_NOELEM)
9911 || (ctxt->err->err ==
9912 XML_RELAXNG_ERR_NOTELEM)))
9913 xmlRelaxNGValidErrorPop(ctxt);
9914 }
9915 break;
9916 }
9917
9918 ret = xmlRelaxNGElementMatch(ctxt, define, node);
9919 if (ret <= 0) {
9920 ret = -1;
9921 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
9922 xmlRelaxNGDumpValidError(ctxt);
9923 break;
9924 }
9925 ret = 0;
9926 if (ctxt->errNr != 0) {
9927 if (ctxt->errNr > errNr)
9928 xmlRelaxNGPopErrors(ctxt, errNr);
9929 while ((ctxt->err != NULL) &&
9930 (((ctxt->err->err == XML_RELAXNG_ERR_ELEMNAME) &&
9931 (xmlStrEqual(ctxt->err->arg2, node->name))) ||
9932 ((ctxt->err->err == XML_RELAXNG_ERR_ELEMEXTRANS) &&
9933 (xmlStrEqual(ctxt->err->arg1, node->name))) ||
9934 (ctxt->err->err == XML_RELAXNG_ERR_NOELEM) ||
9935 (ctxt->err->err == XML_RELAXNG_ERR_NOTELEM)))
9936 xmlRelaxNGValidErrorPop(ctxt);
9937 }
9938 errNr = ctxt->errNr;
9939
9940 oldflags = ctxt->flags;
9941 if (ctxt->flags & FLAGS_MIXED_CONTENT) {
9942 ctxt->flags -= FLAGS_MIXED_CONTENT;
9943 }
9944 state = xmlRelaxNGNewValidState(ctxt, node);
9945 if (state == NULL) {
9946 ret = -1;
9947 if ((ctxt->flags & FLAGS_IGNORABLE) == 0)
9948 xmlRelaxNGDumpValidError(ctxt);
9949 break;
9950 }
9951
9952 oldstate = ctxt->state;
9953 ctxt->state = state;
9954 if (define->attrs != NULL) {
9955 tmp = xmlRelaxNGValidateAttributeList(ctxt, define->attrs);
9956 if (tmp != 0) {
9957 ret = -1;
9958 VALID_ERR2(XML_RELAXNG_ERR_ATTRVALID, node->name);
9959 }
9960 }
9961 if (define->contModel != NULL) {
9962 xmlRelaxNGValidStatePtr nstate, tmpstate = ctxt->state;
9963 xmlRelaxNGStatesPtr tmpstates = ctxt->states;
9964 xmlNodePtr nseq;
9965
9966 nstate = xmlRelaxNGNewValidState(ctxt, node);
9967 ctxt->state = nstate;
9968 ctxt->states = NULL;
9969
9970 tmp = xmlRelaxNGValidateCompiledContent(ctxt,
9971 define->contModel,
9972 ctxt->state->seq);
9973 nseq = ctxt->state->seq;
9974 ctxt->state = tmpstate;
9975 ctxt->states = tmpstates;
9976 xmlRelaxNGFreeValidState(ctxt, nstate);
9977
9978 #ifdef DEBUG_COMPILE
9979 xmlGenericError(xmlGenericErrorContext,
9980 "Validating content of '%s' : %d\n",
9981 define->name, tmp);
9982 #endif
9983 if (tmp != 0)
9984 ret = -1;
9985
9986 if (ctxt->states != NULL) {
9987 tmp = -1;
9988
9989 for (i = 0; i < ctxt->states->nbState; i++) {
9990 state = ctxt->states->tabState[i];
9991 ctxt->state = state;
9992 ctxt->state->seq = nseq;
9993
9994 if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
9995 tmp = 0;
9996 break;
9997 }
9998 }
9999 if (tmp != 0) {
10000 /*
10001 * validation error, log the message for the "best" one
10002 */
10003 ctxt->flags |= FLAGS_IGNORABLE;
10004 xmlRelaxNGLogBestError(ctxt);
10005 }
10006 for (i = 0; i < ctxt->states->nbState; i++) {
10007 xmlRelaxNGFreeValidState(ctxt,
10008 ctxt->states->
10009 tabState[i]);
10010 }
10011 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10012 ctxt->flags = oldflags;
10013 ctxt->states = NULL;
10014 if ((ret == 0) && (tmp == -1))
10015 ret = -1;
10016 } else {
10017 state = ctxt->state;
10018 if (ctxt->state != NULL)
10019 ctxt->state->seq = nseq;
10020 if (ret == 0)
10021 ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
10022 xmlRelaxNGFreeValidState(ctxt, state);
10023 }
10024 } else {
10025 if (define->content != NULL) {
10026 tmp = xmlRelaxNGValidateDefinitionList(ctxt,
10027 define->
10028 content);
10029 if (tmp != 0) {
10030 ret = -1;
10031 if (ctxt->state == NULL) {
10032 ctxt->state = oldstate;
10033 VALID_ERR2(XML_RELAXNG_ERR_CONTENTVALID,
10034 node->name);
10035 ctxt->state = NULL;
10036 } else {
10037 VALID_ERR2(XML_RELAXNG_ERR_CONTENTVALID,
10038 node->name);
10039 }
10040
10041 }
10042 }
10043 if (ctxt->states != NULL) {
10044 tmp = -1;
10045
10046 for (i = 0; i < ctxt->states->nbState; i++) {
10047 state = ctxt->states->tabState[i];
10048 ctxt->state = state;
10049
10050 if (xmlRelaxNGValidateElementEnd(ctxt, 0) == 0) {
10051 tmp = 0;
10052 break;
10053 }
10054 }
10055 if (tmp != 0) {
10056 /*
10057 * validation error, log the message for the "best" one
10058 */
10059 ctxt->flags |= FLAGS_IGNORABLE;
10060 xmlRelaxNGLogBestError(ctxt);
10061 }
10062 for (i = 0; i < ctxt->states->nbState; i++) {
10063 xmlRelaxNGFreeValidState(ctxt,
10064 ctxt->states->tabState[i]);
10065 ctxt->states->tabState[i] = NULL;
10066 }
10067 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10068 ctxt->flags = oldflags;
10069 ctxt->states = NULL;
10070 if ((ret == 0) && (tmp == -1))
10071 ret = -1;
10072 } else {
10073 state = ctxt->state;
10074 if (ret == 0)
10075 ret = xmlRelaxNGValidateElementEnd(ctxt, 1);
10076 xmlRelaxNGFreeValidState(ctxt, state);
10077 }
10078 }
10079 if (ret == 0) {
10080 node->psvi = define;
10081 }
10082 ctxt->flags = oldflags;
10083 ctxt->state = oldstate;
10084 if (oldstate != NULL)
10085 oldstate->seq = xmlRelaxNGSkipIgnored(ctxt, node->next);
10086 if (ret != 0) {
10087 if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
10088 xmlRelaxNGDumpValidError(ctxt);
10089 ret = 0;
10090 #if 0
10091 } else {
10092 ret = -2;
10093 #endif
10094 }
10095 } else {
10096 if (ctxt->errNr > errNr)
10097 xmlRelaxNGPopErrors(ctxt, errNr);
10098 }
10099
10100 #ifdef DEBUG
10101 xmlGenericError(xmlGenericErrorContext,
10102 "xmlRelaxNGValidateDefinition(): validated %s : %d",
10103 node->name, ret);
10104 if (oldstate == NULL)
10105 xmlGenericError(xmlGenericErrorContext, ": no state\n");
10106 else if (oldstate->seq == NULL)
10107 xmlGenericError(xmlGenericErrorContext, ": done\n");
10108 else if (oldstate->seq->type == XML_ELEMENT_NODE)
10109 xmlGenericError(xmlGenericErrorContext, ": next elem %s\n",
10110 oldstate->seq->name);
10111 else
10112 xmlGenericError(xmlGenericErrorContext, ": next %s %d\n",
10113 oldstate->seq->name, oldstate->seq->type);
10114 #endif
10115 break;
10116 case XML_RELAXNG_OPTIONAL:{
10117 errNr = ctxt->errNr;
10118 oldflags = ctxt->flags;
10119 ctxt->flags |= FLAGS_IGNORABLE;
10120 oldstate = xmlRelaxNGCopyValidState(ctxt, ctxt->state);
10121 ret =
10122 xmlRelaxNGValidateDefinitionList(ctxt,
10123 define->content);
10124 if (ret != 0) {
10125 if (ctxt->state != NULL)
10126 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10127 ctxt->state = oldstate;
10128 ctxt->flags = oldflags;
10129 ret = 0;
10130 if (ctxt->errNr > errNr)
10131 xmlRelaxNGPopErrors(ctxt, errNr);
10132 break;
10133 }
10134 if (ctxt->states != NULL) {
10135 xmlRelaxNGAddStates(ctxt, ctxt->states, oldstate);
10136 } else {
10137 ctxt->states = xmlRelaxNGNewStates(ctxt, 1);
10138 if (ctxt->states == NULL) {
10139 xmlRelaxNGFreeValidState(ctxt, oldstate);
10140 ctxt->flags = oldflags;
10141 ret = -1;
10142 if (ctxt->errNr > errNr)
10143 xmlRelaxNGPopErrors(ctxt, errNr);
10144 break;
10145 }
10146 xmlRelaxNGAddStates(ctxt, ctxt->states, oldstate);
10147 xmlRelaxNGAddStates(ctxt, ctxt->states, ctxt->state);
10148 ctxt->state = NULL;
10149 }
10150 ctxt->flags = oldflags;
10151 ret = 0;
10152 if (ctxt->errNr > errNr)
10153 xmlRelaxNGPopErrors(ctxt, errNr);
10154 break;
10155 }
10156 case XML_RELAXNG_ONEORMORE:
10157 errNr = ctxt->errNr;
10158 ret = xmlRelaxNGValidateDefinitionList(ctxt, define->content);
10159 if (ret != 0) {
10160 break;
10161 }
10162 if (ctxt->errNr > errNr)
10163 xmlRelaxNGPopErrors(ctxt, errNr);
10164 /* no break on purpose */
10165 case XML_RELAXNG_ZEROORMORE:{
10166 int progress;
10167 xmlRelaxNGStatesPtr states = NULL, res = NULL;
10168 int base, j;
10169
10170 errNr = ctxt->errNr;
10171 res = xmlRelaxNGNewStates(ctxt, 1);
10172 if (res == NULL) {
10173 ret = -1;
10174 break;
10175 }
10176 /*
10177 * All the input states are also exit states
10178 */
10179 if (ctxt->state != NULL) {
10180 xmlRelaxNGAddStates(ctxt, res,
10181 xmlRelaxNGCopyValidState(ctxt,
10182 ctxt->
10183 state));
10184 } else {
10185 for (j = 0; j < ctxt->states->nbState; j++) {
10186 xmlRelaxNGAddStates(ctxt, res,
10187 xmlRelaxNGCopyValidState(ctxt,
10188 ctxt->states->tabState[j]));
10189 }
10190 }
10191 oldflags = ctxt->flags;
10192 ctxt->flags |= FLAGS_IGNORABLE;
10193 do {
10194 progress = 0;
10195 base = res->nbState;
10196
10197 if (ctxt->states != NULL) {
10198 states = ctxt->states;
10199 for (i = 0; i < states->nbState; i++) {
10200 ctxt->state = states->tabState[i];
10201 ctxt->states = NULL;
10202 ret = xmlRelaxNGValidateDefinitionList(ctxt,
10203 define->
10204 content);
10205 if (ret == 0) {
10206 if (ctxt->state != NULL) {
10207 tmp = xmlRelaxNGAddStates(ctxt, res,
10208 ctxt->state);
10209 ctxt->state = NULL;
10210 if (tmp == 1)
10211 progress = 1;
10212 } else if (ctxt->states != NULL) {
10213 for (j = 0; j < ctxt->states->nbState;
10214 j++) {
10215 tmp =
10216 xmlRelaxNGAddStates(ctxt, res,
10217 ctxt->states->tabState[j]);
10218 if (tmp == 1)
10219 progress = 1;
10220 }
10221 xmlRelaxNGFreeStates(ctxt,
10222 ctxt->states);
10223 ctxt->states = NULL;
10224 }
10225 } else {
10226 if (ctxt->state != NULL) {
10227 xmlRelaxNGFreeValidState(ctxt,
10228 ctxt->state);
10229 ctxt->state = NULL;
10230 }
10231 }
10232 }
10233 } else {
10234 ret = xmlRelaxNGValidateDefinitionList(ctxt,
10235 define->
10236 content);
10237 if (ret != 0) {
10238 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10239 ctxt->state = NULL;
10240 } else {
10241 base = res->nbState;
10242 if (ctxt->state != NULL) {
10243 tmp = xmlRelaxNGAddStates(ctxt, res,
10244 ctxt->state);
10245 ctxt->state = NULL;
10246 if (tmp == 1)
10247 progress = 1;
10248 } else if (ctxt->states != NULL) {
10249 for (j = 0; j < ctxt->states->nbState; j++) {
10250 tmp = xmlRelaxNGAddStates(ctxt, res,
10251 ctxt->states->tabState[j]);
10252 if (tmp == 1)
10253 progress = 1;
10254 }
10255 if (states == NULL) {
10256 states = ctxt->states;
10257 } else {
10258 xmlRelaxNGFreeStates(ctxt,
10259 ctxt->states);
10260 }
10261 ctxt->states = NULL;
10262 }
10263 }
10264 }
10265 if (progress) {
10266 /*
10267 * Collect all the new nodes added at that step
10268 * and make them the new node set
10269 */
10270 if (res->nbState - base == 1) {
10271 ctxt->state = xmlRelaxNGCopyValidState(ctxt,
10272 res->
10273 tabState
10274 [base]);
10275 } else {
10276 if (states == NULL) {
10277 xmlRelaxNGNewStates(ctxt,
10278 res->nbState - base);
10279 states = ctxt->states;
10280 if (states == NULL) {
10281 progress = 0;
10282 break;
10283 }
10284 }
10285 states->nbState = 0;
10286 for (i = base; i < res->nbState; i++)
10287 xmlRelaxNGAddStates(ctxt, states,
10288 xmlRelaxNGCopyValidState
10289 (ctxt, res->tabState[i]));
10290 ctxt->states = states;
10291 }
10292 }
10293 } while (progress == 1);
10294 if (states != NULL) {
10295 xmlRelaxNGFreeStates(ctxt, states);
10296 }
10297 ctxt->states = res;
10298 ctxt->flags = oldflags;
10299 #if 0
10300 /*
10301 * errors may have to be propagated back...
10302 */
10303 if (ctxt->errNr > errNr)
10304 xmlRelaxNGPopErrors(ctxt, errNr);
10305 #endif
10306 ret = 0;
10307 break;
10308 }
10309 case XML_RELAXNG_CHOICE:{
10310 xmlRelaxNGDefinePtr list = NULL;
10311 xmlRelaxNGStatesPtr states = NULL;
10312
10313 node = xmlRelaxNGSkipIgnored(ctxt, node);
10314
10315 errNr = ctxt->errNr;
10316 if ((define->dflags & IS_TRIABLE) && (define->data != NULL) &&
10317 (node != NULL)) {
10318 /*
10319 * node == NULL can't be optimized since IS_TRIABLE
10320 * doesn't account for choice which may lead to
10321 * only attributes.
10322 */
10323 xmlHashTablePtr triage =
10324 (xmlHashTablePtr) define->data;
10325
10326 /*
10327 * Something we can optimize cleanly there is only one
10328 * possble branch out !
10329 */
10330 if ((node->type == XML_TEXT_NODE) ||
10331 (node->type == XML_CDATA_SECTION_NODE)) {
10332 list =
10333 xmlHashLookup2(triage, BAD_CAST "#text", NULL);
10334 } else if (node->type == XML_ELEMENT_NODE) {
10335 if (node->ns != NULL) {
10336 list = xmlHashLookup2(triage, node->name,
10337 node->ns->href);
10338 if (list == NULL)
10339 list =
10340 xmlHashLookup2(triage, BAD_CAST "#any",
10341 node->ns->href);
10342 } else
10343 list =
10344 xmlHashLookup2(triage, node->name, NULL);
10345 if (list == NULL)
10346 list =
10347 xmlHashLookup2(triage, BAD_CAST "#any",
10348 NULL);
10349 }
10350 if (list == NULL) {
10351 ret = -1;
10352 VALID_ERR2(XML_RELAXNG_ERR_ELEMWRONG, node->name);
10353 break;
10354 }
10355 ret = xmlRelaxNGValidateDefinition(ctxt, list);
10356 if (ret == 0) {
10357 }
10358 break;
10359 }
10360
10361 list = define->content;
10362 oldflags = ctxt->flags;
10363 ctxt->flags |= FLAGS_IGNORABLE;
10364
10365 while (list != NULL) {
10366 oldstate = xmlRelaxNGCopyValidState(ctxt, ctxt->state);
10367 ret = xmlRelaxNGValidateDefinition(ctxt, list);
10368 if (ret == 0) {
10369 if (states == NULL) {
10370 states = xmlRelaxNGNewStates(ctxt, 1);
10371 }
10372 if (ctxt->state != NULL) {
10373 xmlRelaxNGAddStates(ctxt, states, ctxt->state);
10374 } else if (ctxt->states != NULL) {
10375 for (i = 0; i < ctxt->states->nbState; i++) {
10376 xmlRelaxNGAddStates(ctxt, states,
10377 ctxt->states->
10378 tabState[i]);
10379 }
10380 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10381 ctxt->states = NULL;
10382 }
10383 } else {
10384 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10385 }
10386 ctxt->state = oldstate;
10387 list = list->next;
10388 }
10389 if (states != NULL) {
10390 xmlRelaxNGFreeValidState(ctxt, oldstate);
10391 ctxt->states = states;
10392 ctxt->state = NULL;
10393 ret = 0;
10394 } else {
10395 ctxt->states = NULL;
10396 }
10397 ctxt->flags = oldflags;
10398 if (ret != 0) {
10399 if ((ctxt->flags & FLAGS_IGNORABLE) == 0) {
10400 xmlRelaxNGDumpValidError(ctxt);
10401 }
10402 } else {
10403 if (ctxt->errNr > errNr)
10404 xmlRelaxNGPopErrors(ctxt, errNr);
10405 }
10406 break;
10407 }
10408 case XML_RELAXNG_DEF:
10409 case XML_RELAXNG_GROUP:
10410 ret = xmlRelaxNGValidateDefinitionList(ctxt, define->content);
10411 break;
10412 case XML_RELAXNG_INTERLEAVE:
10413 ret = xmlRelaxNGValidateInterleave(ctxt, define);
10414 break;
10415 case XML_RELAXNG_ATTRIBUTE:
10416 ret = xmlRelaxNGValidateAttribute(ctxt, define);
10417 break;
10418 case XML_RELAXNG_START:
10419 case XML_RELAXNG_NOOP:
10420 case XML_RELAXNG_REF:
10421 case XML_RELAXNG_EXTERNALREF:
10422 case XML_RELAXNG_PARENTREF:
10423 ret = xmlRelaxNGValidateDefinition(ctxt, define->content);
10424 break;
10425 case XML_RELAXNG_DATATYPE:{
10426 xmlNodePtr child;
10427 xmlChar *content = NULL;
10428
10429 child = node;
10430 while (child != NULL) {
10431 if (child->type == XML_ELEMENT_NODE) {
10432 VALID_ERR2(XML_RELAXNG_ERR_DATAELEM,
10433 node->parent->name);
10434 ret = -1;
10435 break;
10436 } else if ((child->type == XML_TEXT_NODE) ||
10437 (child->type == XML_CDATA_SECTION_NODE)) {
10438 content = xmlStrcat(content, child->content);
10439 }
10440 /* TODO: handle entities ... */
10441 child = child->next;
10442 }
10443 if (ret == -1) {
10444 if (content != NULL)
10445 xmlFree(content);
10446 break;
10447 }
10448 if (content == NULL) {
10449 content = xmlStrdup(BAD_CAST "");
10450 if (content == NULL) {
10451 xmlRngVErrMemory(ctxt, "validating\n");
10452 ret = -1;
10453 break;
10454 }
10455 }
10456 ret = xmlRelaxNGValidateDatatype(ctxt, content, define,
10457 ctxt->state->seq);
10458 if (ret == -1) {
10459 VALID_ERR2(XML_RELAXNG_ERR_DATATYPE, define->name);
10460 } else if (ret == 0) {
10461 ctxt->state->seq = NULL;
10462 }
10463 if (content != NULL)
10464 xmlFree(content);
10465 break;
10466 }
10467 case XML_RELAXNG_VALUE:{
10468 xmlChar *content = NULL;
10469 xmlChar *oldvalue;
10470 xmlNodePtr child;
10471
10472 child = node;
10473 while (child != NULL) {
10474 if (child->type == XML_ELEMENT_NODE) {
10475 VALID_ERR2(XML_RELAXNG_ERR_VALELEM,
10476 node->parent->name);
10477 ret = -1;
10478 break;
10479 } else if ((child->type == XML_TEXT_NODE) ||
10480 (child->type == XML_CDATA_SECTION_NODE)) {
10481 content = xmlStrcat(content, child->content);
10482 }
10483 /* TODO: handle entities ... */
10484 child = child->next;
10485 }
10486 if (ret == -1) {
10487 if (content != NULL)
10488 xmlFree(content);
10489 break;
10490 }
10491 if (content == NULL) {
10492 content = xmlStrdup(BAD_CAST "");
10493 if (content == NULL) {
10494 xmlRngVErrMemory(ctxt, "validating\n");
10495 ret = -1;
10496 break;
10497 }
10498 }
10499 oldvalue = ctxt->state->value;
10500 ctxt->state->value = content;
10501 ret = xmlRelaxNGValidateValue(ctxt, define);
10502 ctxt->state->value = oldvalue;
10503 if (ret == -1) {
10504 VALID_ERR2(XML_RELAXNG_ERR_VALUE, define->name);
10505 } else if (ret == 0) {
10506 ctxt->state->seq = NULL;
10507 }
10508 if (content != NULL)
10509 xmlFree(content);
10510 break;
10511 }
10512 case XML_RELAXNG_LIST:{
10513 xmlChar *content;
10514 xmlNodePtr child;
10515 xmlChar *oldvalue, *oldendvalue;
10516 int len;
10517
10518 /*
10519 * Make sure it's only text nodes
10520 */
10521
10522 content = NULL;
10523 child = node;
10524 while (child != NULL) {
10525 if (child->type == XML_ELEMENT_NODE) {
10526 VALID_ERR2(XML_RELAXNG_ERR_LISTELEM,
10527 node->parent->name);
10528 ret = -1;
10529 break;
10530 } else if ((child->type == XML_TEXT_NODE) ||
10531 (child->type == XML_CDATA_SECTION_NODE)) {
10532 content = xmlStrcat(content, child->content);
10533 }
10534 /* TODO: handle entities ... */
10535 child = child->next;
10536 }
10537 if (ret == -1) {
10538 if (content != NULL)
10539 xmlFree(content);
10540 break;
10541 }
10542 if (content == NULL) {
10543 content = xmlStrdup(BAD_CAST "");
10544 if (content == NULL) {
10545 xmlRngVErrMemory(ctxt, "validating\n");
10546 ret = -1;
10547 break;
10548 }
10549 }
10550 len = xmlStrlen(content);
10551 oldvalue = ctxt->state->value;
10552 oldendvalue = ctxt->state->endvalue;
10553 ctxt->state->value = content;
10554 ctxt->state->endvalue = content + len;
10555 ret = xmlRelaxNGValidateValue(ctxt, define);
10556 ctxt->state->value = oldvalue;
10557 ctxt->state->endvalue = oldendvalue;
10558 if (ret == -1) {
10559 VALID_ERR(XML_RELAXNG_ERR_LIST);
10560 } else if ((ret == 0) && (node != NULL)) {
10561 ctxt->state->seq = node->next;
10562 }
10563 if (content != NULL)
10564 xmlFree(content);
10565 break;
10566 }
10567 case XML_RELAXNG_EXCEPT:
10568 case XML_RELAXNG_PARAM:
10569 TODO ret = -1;
10570 break;
10571 }
10572 ctxt->depth--;
10573 #ifdef DEBUG
10574 for (i = 0; i < ctxt->depth; i++)
10575 xmlGenericError(xmlGenericErrorContext, " ");
10576 xmlGenericError(xmlGenericErrorContext,
10577 "Validating %s ", xmlRelaxNGDefName(define));
10578 if (define->name != NULL)
10579 xmlGenericError(xmlGenericErrorContext, "%s ", define->name);
10580 if (ret == 0)
10581 xmlGenericError(xmlGenericErrorContext, "suceeded\n");
10582 else
10583 xmlGenericError(xmlGenericErrorContext, "failed\n");
10584 #endif
10585 return (ret);
10586 }
10587
10588 /**
10589 * xmlRelaxNGValidateDefinition:
10590 * @ctxt: a Relax-NG validation context
10591 * @define: the definition to verify
10592 *
10593 * Validate the current node lists against the definition
10594 *
10595 * Returns 0 if the validation succeeded or an error code.
10596 */
10597 static int
xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGDefinePtr define)10598 xmlRelaxNGValidateDefinition(xmlRelaxNGValidCtxtPtr ctxt,
10599 xmlRelaxNGDefinePtr define)
10600 {
10601 xmlRelaxNGStatesPtr states, res;
10602 int i, j, k, ret, oldflags;
10603
10604 /*
10605 * We should NOT have both ctxt->state and ctxt->states
10606 */
10607 if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
10608 TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10609 ctxt->state = NULL;
10610 }
10611
10612 if ((ctxt->states == NULL) || (ctxt->states->nbState == 1)) {
10613 if (ctxt->states != NULL) {
10614 ctxt->state = ctxt->states->tabState[0];
10615 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10616 ctxt->states = NULL;
10617 }
10618 ret = xmlRelaxNGValidateState(ctxt, define);
10619 if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
10620 TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10621 ctxt->state = NULL;
10622 }
10623 if ((ctxt->states != NULL) && (ctxt->states->nbState == 1)) {
10624 ctxt->state = ctxt->states->tabState[0];
10625 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10626 ctxt->states = NULL;
10627 }
10628 return (ret);
10629 }
10630
10631 states = ctxt->states;
10632 ctxt->states = NULL;
10633 res = NULL;
10634 j = 0;
10635 oldflags = ctxt->flags;
10636 ctxt->flags |= FLAGS_IGNORABLE;
10637 for (i = 0; i < states->nbState; i++) {
10638 ctxt->state = states->tabState[i];
10639 ctxt->states = NULL;
10640 ret = xmlRelaxNGValidateState(ctxt, define);
10641 /*
10642 * We should NOT have both ctxt->state and ctxt->states
10643 */
10644 if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
10645 TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10646 ctxt->state = NULL;
10647 }
10648 if (ret == 0) {
10649 if (ctxt->states == NULL) {
10650 if (res != NULL) {
10651 /* add the state to the container */
10652 xmlRelaxNGAddStates(ctxt, res, ctxt->state);
10653 ctxt->state = NULL;
10654 } else {
10655 /* add the state directly in states */
10656 states->tabState[j++] = ctxt->state;
10657 ctxt->state = NULL;
10658 }
10659 } else {
10660 if (res == NULL) {
10661 /* make it the new container and copy other results */
10662 res = ctxt->states;
10663 ctxt->states = NULL;
10664 for (k = 0; k < j; k++)
10665 xmlRelaxNGAddStates(ctxt, res,
10666 states->tabState[k]);
10667 } else {
10668 /* add all the new results to res and reff the container */
10669 for (k = 0; k < ctxt->states->nbState; k++)
10670 xmlRelaxNGAddStates(ctxt, res,
10671 ctxt->states->tabState[k]);
10672 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10673 ctxt->states = NULL;
10674 }
10675 }
10676 } else {
10677 if (ctxt->state != NULL) {
10678 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10679 ctxt->state = NULL;
10680 } else if (ctxt->states != NULL) {
10681 for (k = 0; k < ctxt->states->nbState; k++)
10682 xmlRelaxNGFreeValidState(ctxt,
10683 ctxt->states->tabState[k]);
10684 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10685 ctxt->states = NULL;
10686 }
10687 }
10688 }
10689 ctxt->flags = oldflags;
10690 if (res != NULL) {
10691 xmlRelaxNGFreeStates(ctxt, states);
10692 ctxt->states = res;
10693 ret = 0;
10694 } else if (j > 1) {
10695 states->nbState = j;
10696 ctxt->states = states;
10697 ret = 0;
10698 } else if (j == 1) {
10699 ctxt->state = states->tabState[0];
10700 xmlRelaxNGFreeStates(ctxt, states);
10701 ret = 0;
10702 } else {
10703 ret = -1;
10704 xmlRelaxNGFreeStates(ctxt, states);
10705 if (ctxt->states != NULL) {
10706 xmlRelaxNGFreeStates(ctxt, ctxt->states);
10707 ctxt->states = NULL;
10708 }
10709 }
10710 if ((ctxt->state != NULL) && (ctxt->states != NULL)) {
10711 TODO xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10712 ctxt->state = NULL;
10713 }
10714 return (ret);
10715 }
10716
10717 /**
10718 * xmlRelaxNGValidateDocument:
10719 * @ctxt: a Relax-NG validation context
10720 * @doc: the document
10721 *
10722 * Validate the given document
10723 *
10724 * Returns 0 if the validation succeeded or an error code.
10725 */
10726 static int
xmlRelaxNGValidateDocument(xmlRelaxNGValidCtxtPtr ctxt,xmlDocPtr doc)10727 xmlRelaxNGValidateDocument(xmlRelaxNGValidCtxtPtr ctxt, xmlDocPtr doc)
10728 {
10729 int ret;
10730 xmlRelaxNGPtr schema;
10731 xmlRelaxNGGrammarPtr grammar;
10732 xmlRelaxNGValidStatePtr state;
10733 xmlNodePtr node;
10734
10735 if ((ctxt == NULL) || (ctxt->schema == NULL) || (doc == NULL))
10736 return (-1);
10737
10738 ctxt->errNo = XML_RELAXNG_OK;
10739 schema = ctxt->schema;
10740 grammar = schema->topgrammar;
10741 if (grammar == NULL) {
10742 VALID_ERR(XML_RELAXNG_ERR_NOGRAMMAR);
10743 return (-1);
10744 }
10745 state = xmlRelaxNGNewValidState(ctxt, NULL);
10746 ctxt->state = state;
10747 ret = xmlRelaxNGValidateDefinition(ctxt, grammar->start);
10748 if ((ctxt->state != NULL) && (state->seq != NULL)) {
10749 state = ctxt->state;
10750 node = state->seq;
10751 node = xmlRelaxNGSkipIgnored(ctxt, node);
10752 if (node != NULL) {
10753 if (ret != -1) {
10754 VALID_ERR(XML_RELAXNG_ERR_EXTRADATA);
10755 ret = -1;
10756 }
10757 }
10758 } else if (ctxt->states != NULL) {
10759 int i;
10760 int tmp = -1;
10761
10762 for (i = 0; i < ctxt->states->nbState; i++) {
10763 state = ctxt->states->tabState[i];
10764 node = state->seq;
10765 node = xmlRelaxNGSkipIgnored(ctxt, node);
10766 if (node == NULL)
10767 tmp = 0;
10768 xmlRelaxNGFreeValidState(ctxt, state);
10769 }
10770 if (tmp == -1) {
10771 if (ret != -1) {
10772 VALID_ERR(XML_RELAXNG_ERR_EXTRADATA);
10773 ret = -1;
10774 }
10775 }
10776 }
10777 if (ctxt->state != NULL) {
10778 xmlRelaxNGFreeValidState(ctxt, ctxt->state);
10779 ctxt->state = NULL;
10780 }
10781 if (ret != 0)
10782 xmlRelaxNGDumpValidError(ctxt);
10783 #ifdef DEBUG
10784 else if (ctxt->errNr != 0) {
10785 ctxt->error(ctxt->userData,
10786 "%d Extra error messages left on stack !\n",
10787 ctxt->errNr);
10788 xmlRelaxNGDumpValidError(ctxt);
10789 }
10790 #endif
10791 #ifdef LIBXML_VALID_ENABLED
10792 if (ctxt->idref == 1) {
10793 xmlValidCtxt vctxt;
10794
10795 memset(&vctxt, 0, sizeof(xmlValidCtxt));
10796 vctxt.valid = 1;
10797 vctxt.error = ctxt->error;
10798 vctxt.warning = ctxt->warning;
10799 vctxt.userData = ctxt->userData;
10800
10801 if (xmlValidateDocumentFinal(&vctxt, doc) != 1)
10802 ret = -1;
10803 }
10804 #endif /* LIBXML_VALID_ENABLED */
10805 if ((ret == 0) && (ctxt->errNo != XML_RELAXNG_OK))
10806 ret = -1;
10807
10808 return (ret);
10809 }
10810
10811 /**
10812 * xmlRelaxNGCleanPSVI:
10813 * @node: an input element or document
10814 *
10815 * Call this routine to speed up XPath computation on static documents.
10816 * This stamps all the element nodes with the document order
10817 * Like for line information, the order is kept in the element->content
10818 * field, the value stored is actually - the node number (starting at -1)
10819 * to be able to differentiate from line numbers.
10820 *
10821 * Returns the number of elements found in the document or -1 in case
10822 * of error.
10823 */
10824 static void
xmlRelaxNGCleanPSVI(xmlNodePtr node)10825 xmlRelaxNGCleanPSVI(xmlNodePtr node) {
10826 xmlNodePtr cur;
10827
10828 if ((node == NULL) ||
10829 ((node->type != XML_ELEMENT_NODE) &&
10830 (node->type != XML_DOCUMENT_NODE) &&
10831 (node->type != XML_HTML_DOCUMENT_NODE)))
10832 return;
10833 if (node->type == XML_ELEMENT_NODE)
10834 node->psvi = NULL;
10835
10836 cur = node->children;
10837 while (cur != NULL) {
10838 if (cur->type == XML_ELEMENT_NODE) {
10839 cur->psvi = NULL;
10840 if (cur->children != NULL) {
10841 cur = cur->children;
10842 continue;
10843 }
10844 }
10845 if (cur->next != NULL) {
10846 cur = cur->next;
10847 continue;
10848 }
10849 do {
10850 cur = cur->parent;
10851 if (cur == NULL)
10852 break;
10853 if (cur == node) {
10854 cur = NULL;
10855 break;
10856 }
10857 if (cur->next != NULL) {
10858 cur = cur->next;
10859 break;
10860 }
10861 } while (cur != NULL);
10862 }
10863 return;
10864 }
10865 /************************************************************************
10866 * *
10867 * Validation interfaces *
10868 * *
10869 ************************************************************************/
10870
10871 /**
10872 * xmlRelaxNGNewValidCtxt:
10873 * @schema: a precompiled XML RelaxNGs
10874 *
10875 * Create an XML RelaxNGs validation context based on the given schema
10876 *
10877 * Returns the validation context or NULL in case of error
10878 */
10879 xmlRelaxNGValidCtxtPtr
xmlRelaxNGNewValidCtxt(xmlRelaxNGPtr schema)10880 xmlRelaxNGNewValidCtxt(xmlRelaxNGPtr schema)
10881 {
10882 xmlRelaxNGValidCtxtPtr ret;
10883
10884 ret = (xmlRelaxNGValidCtxtPtr) xmlMalloc(sizeof(xmlRelaxNGValidCtxt));
10885 if (ret == NULL) {
10886 xmlRngVErrMemory(NULL, "building context\n");
10887 return (NULL);
10888 }
10889 memset(ret, 0, sizeof(xmlRelaxNGValidCtxt));
10890 ret->schema = schema;
10891 ret->error = xmlGenericError;
10892 ret->userData = xmlGenericErrorContext;
10893 ret->errNr = 0;
10894 ret->errMax = 0;
10895 ret->err = NULL;
10896 ret->errTab = NULL;
10897 if (schema != NULL)
10898 ret->idref = schema->idref;
10899 ret->states = NULL;
10900 ret->freeState = NULL;
10901 ret->freeStates = NULL;
10902 ret->errNo = XML_RELAXNG_OK;
10903 return (ret);
10904 }
10905
10906 /**
10907 * xmlRelaxNGFreeValidCtxt:
10908 * @ctxt: the schema validation context
10909 *
10910 * Free the resources associated to the schema validation context
10911 */
10912 void
xmlRelaxNGFreeValidCtxt(xmlRelaxNGValidCtxtPtr ctxt)10913 xmlRelaxNGFreeValidCtxt(xmlRelaxNGValidCtxtPtr ctxt)
10914 {
10915 int k;
10916
10917 if (ctxt == NULL)
10918 return;
10919 if (ctxt->states != NULL)
10920 xmlRelaxNGFreeStates(NULL, ctxt->states);
10921 if (ctxt->freeState != NULL) {
10922 for (k = 0; k < ctxt->freeState->nbState; k++) {
10923 xmlRelaxNGFreeValidState(NULL, ctxt->freeState->tabState[k]);
10924 }
10925 xmlRelaxNGFreeStates(NULL, ctxt->freeState);
10926 }
10927 if (ctxt->freeStates != NULL) {
10928 for (k = 0; k < ctxt->freeStatesNr; k++) {
10929 xmlRelaxNGFreeStates(NULL, ctxt->freeStates[k]);
10930 }
10931 xmlFree(ctxt->freeStates);
10932 }
10933 if (ctxt->errTab != NULL)
10934 xmlFree(ctxt->errTab);
10935 if (ctxt->elemTab != NULL) {
10936 xmlRegExecCtxtPtr exec;
10937
10938 exec = xmlRelaxNGElemPop(ctxt);
10939 while (exec != NULL) {
10940 xmlRegFreeExecCtxt(exec);
10941 exec = xmlRelaxNGElemPop(ctxt);
10942 }
10943 xmlFree(ctxt->elemTab);
10944 }
10945 xmlFree(ctxt);
10946 }
10947
10948 /**
10949 * xmlRelaxNGSetValidErrors:
10950 * @ctxt: a Relax-NG validation context
10951 * @err: the error function
10952 * @warn: the warning function
10953 * @ctx: the functions context
10954 *
10955 * Set the error and warning callback informations
10956 */
10957 void
xmlRelaxNGSetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidityErrorFunc err,xmlRelaxNGValidityWarningFunc warn,void * ctx)10958 xmlRelaxNGSetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,
10959 xmlRelaxNGValidityErrorFunc err,
10960 xmlRelaxNGValidityWarningFunc warn, void *ctx)
10961 {
10962 if (ctxt == NULL)
10963 return;
10964 ctxt->error = err;
10965 ctxt->warning = warn;
10966 ctxt->userData = ctx;
10967 ctxt->serror = NULL;
10968 }
10969
10970 /**
10971 * xmlRelaxNGSetValidStructuredErrors:
10972 * @ctxt: a Relax-NG validation context
10973 * @serror: the structured error function
10974 * @ctx: the functions context
10975 *
10976 * Set the structured error callback
10977 */
10978 void
xmlRelaxNGSetValidStructuredErrors(xmlRelaxNGValidCtxtPtr ctxt,xmlStructuredErrorFunc serror,void * ctx)10979 xmlRelaxNGSetValidStructuredErrors(xmlRelaxNGValidCtxtPtr ctxt,
10980 xmlStructuredErrorFunc serror, void *ctx)
10981 {
10982 if (ctxt == NULL)
10983 return;
10984 ctxt->serror = serror;
10985 ctxt->error = NULL;
10986 ctxt->warning = NULL;
10987 ctxt->userData = ctx;
10988 }
10989
10990 /**
10991 * xmlRelaxNGGetValidErrors:
10992 * @ctxt: a Relax-NG validation context
10993 * @err: the error function result
10994 * @warn: the warning function result
10995 * @ctx: the functions context result
10996 *
10997 * Get the error and warning callback informations
10998 *
10999 * Returns -1 in case of error and 0 otherwise
11000 */
11001 int
xmlRelaxNGGetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,xmlRelaxNGValidityErrorFunc * err,xmlRelaxNGValidityWarningFunc * warn,void ** ctx)11002 xmlRelaxNGGetValidErrors(xmlRelaxNGValidCtxtPtr ctxt,
11003 xmlRelaxNGValidityErrorFunc * err,
11004 xmlRelaxNGValidityWarningFunc * warn, void **ctx)
11005 {
11006 if (ctxt == NULL)
11007 return (-1);
11008 if (err != NULL)
11009 *err = ctxt->error;
11010 if (warn != NULL)
11011 *warn = ctxt->warning;
11012 if (ctx != NULL)
11013 *ctx = ctxt->userData;
11014 return (0);
11015 }
11016
11017 /**
11018 * xmlRelaxNGValidateDoc:
11019 * @ctxt: a Relax-NG validation context
11020 * @doc: a parsed document tree
11021 *
11022 * Validate a document tree in memory.
11023 *
11024 * Returns 0 if the document is valid, a positive error code
11025 * number otherwise and -1 in case of internal or API error.
11026 */
11027 int
xmlRelaxNGValidateDoc(xmlRelaxNGValidCtxtPtr ctxt,xmlDocPtr doc)11028 xmlRelaxNGValidateDoc(xmlRelaxNGValidCtxtPtr ctxt, xmlDocPtr doc)
11029 {
11030 int ret;
11031
11032 if ((ctxt == NULL) || (doc == NULL))
11033 return (-1);
11034
11035 ctxt->doc = doc;
11036
11037 ret = xmlRelaxNGValidateDocument(ctxt, doc);
11038 /*
11039 * Remove all left PSVI
11040 */
11041 xmlRelaxNGCleanPSVI((xmlNodePtr) doc);
11042
11043 /*
11044 * TODO: build error codes
11045 */
11046 if (ret == -1)
11047 return (1);
11048 return (ret);
11049 }
11050
11051 #define bottom_relaxng
11052 #include "elfgcchack.h"
11053 #endif /* LIBXML_SCHEMAS_ENABLED */
11054