Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * valid.c : part of the code use to do the DTD handling and the validity |
| 3 | * checking |
| 4 | * |
| 5 | * See Copyright for the status of this software. |
| 6 | * |
Daniel Veillard | c5d6434 | 2001-06-24 12:13:24 +0000 | [diff] [blame] | 7 | * daniel@veillard.com |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
Bjorn Reese | 70a9da5 | 2001-04-21 16:57:29 +0000 | [diff] [blame] | 10 | #include "libxml.h" |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 11 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 12 | #include <string.h> |
| 13 | |
| 14 | #ifdef HAVE_STDLIB_H |
| 15 | #include <stdlib.h> |
| 16 | #endif |
| 17 | |
| 18 | #include <libxml/xmlmemory.h> |
| 19 | #include <libxml/hash.h> |
| 20 | #include <libxml/valid.h> |
| 21 | #include <libxml/parser.h> |
| 22 | #include <libxml/parserInternals.h> |
| 23 | #include <libxml/xmlerror.h> |
| 24 | #include <libxml/list.h> |
| 25 | |
Daniel Veillard | e62d36c | 2001-05-15 08:53:16 +0000 | [diff] [blame] | 26 | /* #define DEBUG_VALID_ALGO */ |
| 27 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 28 | /* |
| 29 | * Generic function for accessing stacks in the Validity Context |
| 30 | */ |
| 31 | |
| 32 | #define PUSH_AND_POP(scope, type, name) \ |
| 33 | scope int name##VPush(xmlValidCtxtPtr ctxt, type value) { \ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 34 | if (ctxt->name##Max <= 0) { \ |
| 35 | ctxt->name##Max = 4; \ |
| 36 | ctxt->name##Tab = (type *) xmlMalloc( \ |
| 37 | ctxt->name##Max * sizeof(ctxt->name##Tab[0])); \ |
| 38 | if (ctxt->name##Tab == NULL) { \ |
| 39 | xmlGenericError(xmlGenericErrorContext, \ |
| 40 | "malloc failed !\n"); \ |
Daniel Veillard | a9142e7 | 2001-06-19 11:07:54 +0000 | [diff] [blame] | 41 | ctxt->name##Max = 0; \ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 42 | return(0); \ |
| 43 | } \ |
| 44 | } \ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 45 | if (ctxt->name##Nr >= ctxt->name##Max) { \ |
| 46 | ctxt->name##Max *= 2; \ |
| 47 | ctxt->name##Tab = (type *) xmlRealloc(ctxt->name##Tab, \ |
| 48 | ctxt->name##Max * sizeof(ctxt->name##Tab[0])); \ |
| 49 | if (ctxt->name##Tab == NULL) { \ |
| 50 | xmlGenericError(xmlGenericErrorContext, \ |
| 51 | "realloc failed !\n"); \ |
| 52 | return(0); \ |
| 53 | } \ |
| 54 | } \ |
| 55 | ctxt->name##Tab[ctxt->name##Nr] = value; \ |
| 56 | ctxt->name = value; \ |
| 57 | return(ctxt->name##Nr++); \ |
| 58 | } \ |
| 59 | scope type name##VPop(xmlValidCtxtPtr ctxt) { \ |
| 60 | type ret; \ |
| 61 | if (ctxt->name##Nr <= 0) return(0); \ |
| 62 | ctxt->name##Nr--; \ |
| 63 | if (ctxt->name##Nr > 0) \ |
| 64 | ctxt->name = ctxt->name##Tab[ctxt->name##Nr - 1]; \ |
| 65 | else \ |
| 66 | ctxt->name = NULL; \ |
| 67 | ret = ctxt->name##Tab[ctxt->name##Nr]; \ |
| 68 | ctxt->name##Tab[ctxt->name##Nr] = 0; \ |
| 69 | return(ret); \ |
| 70 | } \ |
| 71 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 72 | /* |
| 73 | * I will use a home made algorithm less complex and easier to |
| 74 | * debug/maintin than a generic NFA -> DFA state based algo. The |
| 75 | * only restriction is on the deepness of the tree limited by the |
| 76 | * size of the occurs bitfield |
| 77 | * |
| 78 | * this is the content of a saved state for rollbacks |
| 79 | */ |
| 80 | |
| 81 | #define ROLLBACK_OR 0 |
| 82 | #define ROLLBACK_PARENT 1 |
| 83 | |
| 84 | struct _xmlValidState { |
| 85 | xmlElementContentPtr cont; /* pointer to the content model subtree */ |
| 86 | xmlNodePtr node; /* pointer to the current node in the list */ |
| 87 | long occurs;/* bitfield for multiple occurences */ |
| 88 | unsigned char depth; /* current depth in the overall tree */ |
| 89 | unsigned char state; /* ROLLBACK_XXX */ |
| 90 | } _xmlValidState; |
| 91 | |
| 92 | #define MAX_DEPTH ((sizeof(_xmlValidState.occurs)) * 8) |
| 93 | #define CONT ctxt->vstate->cont |
| 94 | #define NODE ctxt->vstate->node |
| 95 | #define DEPTH ctxt->vstate->depth |
| 96 | #define OCCURS ctxt->vstate->occurs |
| 97 | #define STATE ctxt->vstate->state |
| 98 | |
| 99 | #define OCCURENCE (ctxt->vstate->occurs & (1 << DEPTH)) |
| 100 | #define PARENT_OCCURENCE (ctxt->vstate->occurs & ((1 << DEPTH) - 1)) |
| 101 | |
| 102 | #define SET_OCCURENCE ctxt->vstate->occurs |= (1 << DEPTH) |
| 103 | #define RESET_OCCURENCE ctxt->vstate->occurs &= ((1 << DEPTH) - 1) |
| 104 | |
| 105 | static int |
| 106 | vstateVPush(xmlValidCtxtPtr ctxt, xmlElementContentPtr cont, |
| 107 | xmlNodePtr node, unsigned char depth, long occurs, |
| 108 | unsigned char state) { |
Daniel Veillard | bed7b05 | 2001-05-19 14:59:49 +0000 | [diff] [blame] | 109 | int i = ctxt->vstateNr - 1; |
| 110 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 111 | if (ctxt->vstateNr >= ctxt->vstateMax) { |
| 112 | ctxt->vstateMax *= 2; |
| 113 | ctxt->vstateTab = (xmlValidState *) xmlRealloc(ctxt->vstateTab, |
| 114 | ctxt->vstateMax * sizeof(ctxt->vstateTab[0])); |
| 115 | if (ctxt->vstateTab == NULL) { |
| 116 | xmlGenericError(xmlGenericErrorContext, |
| 117 | "realloc failed !n"); |
| 118 | return(0); |
| 119 | } |
Daniel Veillard | 0680399 | 2001-04-22 10:35:56 +0000 | [diff] [blame] | 120 | ctxt->vstate = &ctxt->vstateTab[0]; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 121 | } |
Daniel Veillard | bed7b05 | 2001-05-19 14:59:49 +0000 | [diff] [blame] | 122 | /* |
| 123 | * Don't push on the stack a state already here |
| 124 | */ |
| 125 | if ((i >= 0) && (ctxt->vstateTab[i].cont == cont) && |
| 126 | (ctxt->vstateTab[i].node == node) && |
| 127 | (ctxt->vstateTab[i].depth == depth) && |
| 128 | (ctxt->vstateTab[i].occurs == occurs) && |
| 129 | (ctxt->vstateTab[i].state == state)) |
| 130 | return(ctxt->vstateNr); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 131 | ctxt->vstateTab[ctxt->vstateNr].cont = cont; |
| 132 | ctxt->vstateTab[ctxt->vstateNr].node = node; |
| 133 | ctxt->vstateTab[ctxt->vstateNr].depth = depth; |
| 134 | ctxt->vstateTab[ctxt->vstateNr].occurs = occurs; |
| 135 | ctxt->vstateTab[ctxt->vstateNr].state = state; |
| 136 | return(ctxt->vstateNr++); |
| 137 | } |
| 138 | |
| 139 | static int |
| 140 | vstateVPop(xmlValidCtxtPtr ctxt) { |
| 141 | if (ctxt->vstateNr <= 1) return(-1); |
| 142 | ctxt->vstateNr--; |
| 143 | ctxt->vstate = &ctxt->vstateTab[0]; |
| 144 | ctxt->vstate->cont = ctxt->vstateTab[ctxt->vstateNr].cont; |
| 145 | ctxt->vstate->node = ctxt->vstateTab[ctxt->vstateNr].node; |
| 146 | ctxt->vstate->depth = ctxt->vstateTab[ctxt->vstateNr].depth; |
| 147 | ctxt->vstate->occurs = ctxt->vstateTab[ctxt->vstateNr].occurs; |
| 148 | ctxt->vstate->state = ctxt->vstateTab[ctxt->vstateNr].state; |
| 149 | return(ctxt->vstateNr); |
| 150 | } |
| 151 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 152 | PUSH_AND_POP(static, xmlNodePtr, node) |
| 153 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 154 | #ifdef DEBUG_VALID_ALGO |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 155 | static void |
| 156 | xmlValidPrintNode(xmlNodePtr cur) { |
| 157 | if (cur == NULL) { |
| 158 | xmlGenericError(xmlGenericErrorContext, "null"); |
| 159 | return; |
| 160 | } |
| 161 | switch (cur->type) { |
| 162 | case XML_ELEMENT_NODE: |
| 163 | xmlGenericError(xmlGenericErrorContext, "%s ", cur->name); |
| 164 | break; |
| 165 | case XML_TEXT_NODE: |
| 166 | xmlGenericError(xmlGenericErrorContext, "text "); |
| 167 | break; |
| 168 | case XML_CDATA_SECTION_NODE: |
| 169 | xmlGenericError(xmlGenericErrorContext, "cdata "); |
| 170 | break; |
| 171 | case XML_ENTITY_REF_NODE: |
| 172 | xmlGenericError(xmlGenericErrorContext, "&%s; ", cur->name); |
| 173 | break; |
| 174 | case XML_PI_NODE: |
| 175 | xmlGenericError(xmlGenericErrorContext, "pi(%s) ", cur->name); |
| 176 | break; |
| 177 | case XML_COMMENT_NODE: |
| 178 | xmlGenericError(xmlGenericErrorContext, "comment "); |
| 179 | break; |
| 180 | case XML_ATTRIBUTE_NODE: |
| 181 | xmlGenericError(xmlGenericErrorContext, "?attr? "); |
| 182 | break; |
| 183 | case XML_ENTITY_NODE: |
| 184 | xmlGenericError(xmlGenericErrorContext, "?ent? "); |
| 185 | break; |
| 186 | case XML_DOCUMENT_NODE: |
| 187 | xmlGenericError(xmlGenericErrorContext, "?doc? "); |
| 188 | break; |
| 189 | case XML_DOCUMENT_TYPE_NODE: |
| 190 | xmlGenericError(xmlGenericErrorContext, "?doctype? "); |
| 191 | break; |
| 192 | case XML_DOCUMENT_FRAG_NODE: |
| 193 | xmlGenericError(xmlGenericErrorContext, "?frag? "); |
| 194 | break; |
| 195 | case XML_NOTATION_NODE: |
| 196 | xmlGenericError(xmlGenericErrorContext, "?nota? "); |
| 197 | break; |
| 198 | case XML_HTML_DOCUMENT_NODE: |
| 199 | xmlGenericError(xmlGenericErrorContext, "?html? "); |
| 200 | break; |
| 201 | case XML_DTD_NODE: |
| 202 | xmlGenericError(xmlGenericErrorContext, "?dtd? "); |
| 203 | break; |
| 204 | case XML_ELEMENT_DECL: |
| 205 | xmlGenericError(xmlGenericErrorContext, "?edecl? "); |
| 206 | break; |
| 207 | case XML_ATTRIBUTE_DECL: |
| 208 | xmlGenericError(xmlGenericErrorContext, "?adecl? "); |
| 209 | break; |
| 210 | case XML_ENTITY_DECL: |
| 211 | xmlGenericError(xmlGenericErrorContext, "?entdecl? "); |
| 212 | break; |
| 213 | case XML_NAMESPACE_DECL: |
| 214 | xmlGenericError(xmlGenericErrorContext, "?nsdecl? "); |
| 215 | break; |
| 216 | case XML_XINCLUDE_START: |
| 217 | xmlGenericError(xmlGenericErrorContext, "incstart "); |
| 218 | break; |
| 219 | case XML_XINCLUDE_END: |
| 220 | xmlGenericError(xmlGenericErrorContext, "incend "); |
| 221 | break; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | static void |
| 226 | xmlValidPrintNodeList(xmlNodePtr cur) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 227 | if (cur == NULL) |
| 228 | xmlGenericError(xmlGenericErrorContext, "null "); |
| 229 | while (cur != NULL) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 230 | xmlValidPrintNode(cur); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 231 | cur = cur->next; |
| 232 | } |
| 233 | } |
| 234 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 235 | static void |
| 236 | xmlValidDebug(xmlNodePtr cur, xmlElementContentPtr cont) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 237 | char expr[1000]; |
| 238 | |
| 239 | expr[0] = 0; |
| 240 | xmlGenericError(xmlGenericErrorContext, "valid: "); |
| 241 | xmlValidPrintNodeList(cur); |
| 242 | xmlGenericError(xmlGenericErrorContext, "against "); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 243 | xmlSprintfElementContent(expr, cont, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 244 | xmlGenericError(xmlGenericErrorContext, "%s\n", expr); |
| 245 | } |
| 246 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 247 | static void |
| 248 | xmlValidDebugState(xmlValidStatePtr state) { |
| 249 | xmlGenericError(xmlGenericErrorContext, "("); |
| 250 | if (state->cont == NULL) |
| 251 | xmlGenericError(xmlGenericErrorContext, "null,"); |
| 252 | else |
| 253 | switch (state->cont->type) { |
| 254 | case XML_ELEMENT_CONTENT_PCDATA: |
| 255 | xmlGenericError(xmlGenericErrorContext, "pcdata,"); |
| 256 | break; |
| 257 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 258 | xmlGenericError(xmlGenericErrorContext, "%s,", |
| 259 | state->cont->name); |
| 260 | break; |
| 261 | case XML_ELEMENT_CONTENT_SEQ: |
| 262 | xmlGenericError(xmlGenericErrorContext, "seq,"); |
| 263 | break; |
| 264 | case XML_ELEMENT_CONTENT_OR: |
| 265 | xmlGenericError(xmlGenericErrorContext, "or,"); |
| 266 | break; |
| 267 | } |
| 268 | xmlValidPrintNode(state->node); |
| 269 | xmlGenericError(xmlGenericErrorContext, ",%d,%X,%d)", |
| 270 | state->depth, state->occurs, state->state); |
| 271 | } |
| 272 | |
| 273 | static void |
| 274 | xmlValidStateDebug(xmlValidCtxtPtr ctxt) { |
| 275 | int i, j; |
| 276 | |
| 277 | xmlGenericError(xmlGenericErrorContext, "state: "); |
| 278 | xmlValidDebugState(ctxt->vstate); |
| 279 | xmlGenericError(xmlGenericErrorContext, " stack: %d ", |
| 280 | ctxt->vstateNr - 1); |
| 281 | for (i = 0, j = ctxt->vstateNr - 1;(i < 3) && (j > 0);i++,j--) |
| 282 | xmlValidDebugState(&ctxt->vstateTab[j]); |
| 283 | xmlGenericError(xmlGenericErrorContext, "\n"); |
| 284 | } |
| 285 | |
| 286 | /***** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 287 | #define DEBUG_VALID_STATE(n,c) xmlValidDebug(n,c); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 288 | *****/ |
| 289 | |
| 290 | #define DEBUG_VALID_STATE(n,c) xmlValidStateDebug(ctxt); |
Daniel Veillard | e356c28 | 2001-03-10 12:32:04 +0000 | [diff] [blame] | 291 | #define DEBUG_VALID_MSG(m) \ |
| 292 | xmlGenericError(xmlGenericErrorContext, "%s\n", m); |
| 293 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 294 | #else |
| 295 | #define DEBUG_VALID_STATE(n,c) |
Daniel Veillard | e356c28 | 2001-03-10 12:32:04 +0000 | [diff] [blame] | 296 | #define DEBUG_VALID_MSG(m) |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 297 | #endif |
| 298 | |
| 299 | /* TODO: use hash table for accesses to elem and attribute dedinitions */ |
| 300 | |
| 301 | #define VERROR \ |
| 302 | if ((ctxt != NULL) && (ctxt->error != NULL)) ctxt->error |
| 303 | |
| 304 | #define VWARNING \ |
| 305 | if ((ctxt != NULL) && (ctxt->warning != NULL)) ctxt->warning |
| 306 | |
| 307 | #define CHECK_DTD \ |
| 308 | if (doc == NULL) return(0); \ |
| 309 | else if ((doc->intSubset == NULL) && \ |
| 310 | (doc->extSubset == NULL)) return(0) |
| 311 | |
| 312 | xmlElementPtr xmlGetDtdElementDesc(xmlDtdPtr dtd, const xmlChar *name); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 313 | static xmlElementPtr xmlGetDtdElementDesc2(xmlDtdPtr dtd, const xmlChar *name, |
| 314 | int create); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 315 | xmlAttributePtr xmlScanAttributeDecl(xmlDtdPtr dtd, const xmlChar *elem); |
| 316 | |
| 317 | /************************************************************************ |
| 318 | * * |
| 319 | * QName handling helper * |
| 320 | * * |
| 321 | ************************************************************************/ |
| 322 | |
| 323 | /** |
| 324 | * xmlSplitQName2: |
| 325 | * @name: an XML parser context |
| 326 | * @prefix: a xmlChar ** |
| 327 | * |
| 328 | * parse an XML qualified name string |
| 329 | * |
| 330 | * [NS 5] QName ::= (Prefix ':')? LocalPart |
| 331 | * |
| 332 | * [NS 6] Prefix ::= NCName |
| 333 | * |
| 334 | * [NS 7] LocalPart ::= NCName |
| 335 | * |
| 336 | * Returns NULL if not a QName, otherwise the local part, and prefix |
| 337 | * is updated to get the Prefix if any. |
| 338 | */ |
| 339 | |
| 340 | xmlChar * |
| 341 | xmlSplitQName2(const xmlChar *name, xmlChar **prefix) { |
| 342 | int len = 0; |
| 343 | xmlChar *ret = NULL; |
| 344 | |
| 345 | *prefix = NULL; |
| 346 | |
| 347 | /* xml: prefix is not really a namespace */ |
| 348 | if ((name[0] == 'x') && (name[1] == 'm') && |
| 349 | (name[2] == 'l') && (name[3] == ':')) |
| 350 | return(NULL); |
| 351 | |
| 352 | /* nasty but valid */ |
| 353 | if (name[0] == ':') |
| 354 | return(NULL); |
| 355 | |
| 356 | /* |
| 357 | * we are not trying to validate but just to cut, and yes it will |
| 358 | * work even if this is as set of UTF-8 encoded chars |
| 359 | */ |
| 360 | while ((name[len] != 0) && (name[len] != ':')) |
| 361 | len++; |
| 362 | |
| 363 | if (name[len] == 0) |
| 364 | return(NULL); |
| 365 | |
| 366 | *prefix = xmlStrndup(name, len); |
| 367 | ret = xmlStrdup(&name[len + 1]); |
| 368 | |
| 369 | return(ret); |
| 370 | } |
| 371 | |
| 372 | /**************************************************************** |
| 373 | * * |
| 374 | * Util functions for data allocation/deallocation * |
| 375 | * * |
| 376 | ****************************************************************/ |
| 377 | |
| 378 | /** |
| 379 | * xmlNewElementContent: |
| 380 | * @name: the subelement name or NULL |
| 381 | * @type: the type of element content decl |
| 382 | * |
| 383 | * Allocate an element content structure. |
| 384 | * |
| 385 | * Returns NULL if not, othervise the new element content structure |
| 386 | */ |
| 387 | xmlElementContentPtr |
| 388 | xmlNewElementContent(xmlChar *name, xmlElementContentType type) { |
| 389 | xmlElementContentPtr ret; |
| 390 | |
| 391 | switch(type) { |
| 392 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 393 | if (name == NULL) { |
| 394 | xmlGenericError(xmlGenericErrorContext, |
| 395 | "xmlNewElementContent : name == NULL !\n"); |
| 396 | } |
| 397 | break; |
| 398 | case XML_ELEMENT_CONTENT_PCDATA: |
| 399 | case XML_ELEMENT_CONTENT_SEQ: |
| 400 | case XML_ELEMENT_CONTENT_OR: |
| 401 | if (name != NULL) { |
| 402 | xmlGenericError(xmlGenericErrorContext, |
| 403 | "xmlNewElementContent : name != NULL !\n"); |
| 404 | } |
| 405 | break; |
| 406 | default: |
| 407 | xmlGenericError(xmlGenericErrorContext, |
| 408 | "xmlNewElementContent: unknown type %d\n", type); |
| 409 | return(NULL); |
| 410 | } |
| 411 | ret = (xmlElementContentPtr) xmlMalloc(sizeof(xmlElementContent)); |
| 412 | if (ret == NULL) { |
| 413 | xmlGenericError(xmlGenericErrorContext, |
| 414 | "xmlNewElementContent : out of memory!\n"); |
| 415 | return(NULL); |
| 416 | } |
| 417 | ret->type = type; |
| 418 | ret->ocur = XML_ELEMENT_CONTENT_ONCE; |
| 419 | if (name != NULL) |
| 420 | ret->name = xmlStrdup(name); |
| 421 | else |
| 422 | ret->name = NULL; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 423 | ret->c1 = ret->c2 = ret->parent = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 424 | return(ret); |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * xmlCopyElementContent: |
| 429 | * @content: An element content pointer. |
| 430 | * |
| 431 | * Build a copy of an element content description. |
| 432 | * |
| 433 | * Returns the new xmlElementContentPtr or NULL in case of error. |
| 434 | */ |
| 435 | xmlElementContentPtr |
| 436 | xmlCopyElementContent(xmlElementContentPtr cur) { |
| 437 | xmlElementContentPtr ret; |
| 438 | |
| 439 | if (cur == NULL) return(NULL); |
| 440 | ret = xmlNewElementContent((xmlChar *) cur->name, cur->type); |
| 441 | if (ret == NULL) { |
| 442 | xmlGenericError(xmlGenericErrorContext, |
| 443 | "xmlCopyElementContent : out of memory\n"); |
| 444 | return(NULL); |
| 445 | } |
| 446 | ret->ocur = cur->ocur; |
| 447 | if (cur->c1 != NULL) ret->c1 = xmlCopyElementContent(cur->c1); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 448 | if (ret->c1 != NULL) |
| 449 | ret->c1->parent = ret; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 450 | if (cur->c2 != NULL) ret->c2 = xmlCopyElementContent(cur->c2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 451 | if (ret->c2 != NULL) |
| 452 | ret->c2->parent = ret; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 453 | return(ret); |
| 454 | } |
| 455 | |
| 456 | /** |
| 457 | * xmlFreeElementContent: |
| 458 | * @cur: the element content tree to free |
| 459 | * |
| 460 | * Free an element content structure. This is a recursive call ! |
| 461 | */ |
| 462 | void |
| 463 | xmlFreeElementContent(xmlElementContentPtr cur) { |
| 464 | if (cur == NULL) return; |
| 465 | switch (cur->type) { |
| 466 | case XML_ELEMENT_CONTENT_PCDATA: |
| 467 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 468 | case XML_ELEMENT_CONTENT_SEQ: |
| 469 | case XML_ELEMENT_CONTENT_OR: |
| 470 | break; |
| 471 | default: |
| 472 | xmlGenericError(xmlGenericErrorContext, |
| 473 | "xmlFreeElementContent : type %d\n", cur->type); |
| 474 | return; |
| 475 | } |
| 476 | if (cur->c1 != NULL) xmlFreeElementContent(cur->c1); |
| 477 | if (cur->c2 != NULL) xmlFreeElementContent(cur->c2); |
| 478 | if (cur->name != NULL) xmlFree((xmlChar *) cur->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 479 | xmlFree(cur); |
| 480 | } |
| 481 | |
| 482 | /** |
| 483 | * xmlDumpElementContent: |
| 484 | * @buf: An XML buffer |
| 485 | * @content: An element table |
| 486 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 487 | * |
| 488 | * This will dump the content of the element table as an XML DTD definition |
| 489 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 490 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 491 | xmlDumpElementContent(xmlBufferPtr buf, xmlElementContentPtr content, int glob) { |
| 492 | if (content == NULL) return; |
| 493 | |
| 494 | if (glob) xmlBufferWriteChar(buf, "("); |
| 495 | switch (content->type) { |
| 496 | case XML_ELEMENT_CONTENT_PCDATA: |
| 497 | xmlBufferWriteChar(buf, "#PCDATA"); |
| 498 | break; |
| 499 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 500 | xmlBufferWriteCHAR(buf, content->name); |
| 501 | break; |
| 502 | case XML_ELEMENT_CONTENT_SEQ: |
| 503 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 504 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 505 | xmlDumpElementContent(buf, content->c1, 1); |
| 506 | else |
| 507 | xmlDumpElementContent(buf, content->c1, 0); |
| 508 | xmlBufferWriteChar(buf, " , "); |
| 509 | if (content->c2->type == XML_ELEMENT_CONTENT_OR) |
| 510 | xmlDumpElementContent(buf, content->c2, 1); |
| 511 | else |
| 512 | xmlDumpElementContent(buf, content->c2, 0); |
| 513 | break; |
| 514 | case XML_ELEMENT_CONTENT_OR: |
| 515 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 516 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 517 | xmlDumpElementContent(buf, content->c1, 1); |
| 518 | else |
| 519 | xmlDumpElementContent(buf, content->c1, 0); |
| 520 | xmlBufferWriteChar(buf, " | "); |
| 521 | if (content->c2->type == XML_ELEMENT_CONTENT_SEQ) |
| 522 | xmlDumpElementContent(buf, content->c2, 1); |
| 523 | else |
| 524 | xmlDumpElementContent(buf, content->c2, 0); |
| 525 | break; |
| 526 | default: |
| 527 | xmlGenericError(xmlGenericErrorContext, |
| 528 | "xmlDumpElementContent: unknown type %d\n", |
| 529 | content->type); |
| 530 | } |
| 531 | if (glob) |
| 532 | xmlBufferWriteChar(buf, ")"); |
| 533 | switch (content->ocur) { |
| 534 | case XML_ELEMENT_CONTENT_ONCE: |
| 535 | break; |
| 536 | case XML_ELEMENT_CONTENT_OPT: |
| 537 | xmlBufferWriteChar(buf, "?"); |
| 538 | break; |
| 539 | case XML_ELEMENT_CONTENT_MULT: |
| 540 | xmlBufferWriteChar(buf, "*"); |
| 541 | break; |
| 542 | case XML_ELEMENT_CONTENT_PLUS: |
| 543 | xmlBufferWriteChar(buf, "+"); |
| 544 | break; |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | /** |
| 549 | * xmlSprintfElementContent: |
| 550 | * @buf: an output buffer |
| 551 | * @content: An element table |
| 552 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 553 | * |
| 554 | * This will dump the content of the element content definition |
| 555 | * Intended just for the debug routine |
| 556 | */ |
| 557 | void |
| 558 | xmlSprintfElementContent(char *buf, xmlElementContentPtr content, int glob) { |
| 559 | if (content == NULL) return; |
| 560 | if (glob) strcat(buf, "("); |
| 561 | switch (content->type) { |
| 562 | case XML_ELEMENT_CONTENT_PCDATA: |
| 563 | strcat(buf, "#PCDATA"); |
| 564 | break; |
| 565 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 566 | strcat(buf, (char *) content->name); |
| 567 | break; |
| 568 | case XML_ELEMENT_CONTENT_SEQ: |
| 569 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 570 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 571 | xmlSprintfElementContent(buf, content->c1, 1); |
| 572 | else |
| 573 | xmlSprintfElementContent(buf, content->c1, 0); |
| 574 | strcat(buf, " , "); |
| 575 | if (content->c2->type == XML_ELEMENT_CONTENT_OR) |
| 576 | xmlSprintfElementContent(buf, content->c2, 1); |
| 577 | else |
| 578 | xmlSprintfElementContent(buf, content->c2, 0); |
| 579 | break; |
| 580 | case XML_ELEMENT_CONTENT_OR: |
| 581 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 582 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 583 | xmlSprintfElementContent(buf, content->c1, 1); |
| 584 | else |
| 585 | xmlSprintfElementContent(buf, content->c1, 0); |
| 586 | strcat(buf, " | "); |
| 587 | if (content->c2->type == XML_ELEMENT_CONTENT_SEQ) |
| 588 | xmlSprintfElementContent(buf, content->c2, 1); |
| 589 | else |
| 590 | xmlSprintfElementContent(buf, content->c2, 0); |
| 591 | break; |
| 592 | } |
| 593 | if (glob) |
| 594 | strcat(buf, ")"); |
| 595 | switch (content->ocur) { |
| 596 | case XML_ELEMENT_CONTENT_ONCE: |
| 597 | break; |
| 598 | case XML_ELEMENT_CONTENT_OPT: |
| 599 | strcat(buf, "?"); |
| 600 | break; |
| 601 | case XML_ELEMENT_CONTENT_MULT: |
| 602 | strcat(buf, "*"); |
| 603 | break; |
| 604 | case XML_ELEMENT_CONTENT_PLUS: |
| 605 | strcat(buf, "+"); |
| 606 | break; |
| 607 | } |
| 608 | } |
| 609 | |
| 610 | /**************************************************************** |
| 611 | * * |
| 612 | * Registration of DTD declarations * |
| 613 | * * |
| 614 | ****************************************************************/ |
| 615 | |
| 616 | /** |
| 617 | * xmlCreateElementTable: |
| 618 | * |
| 619 | * create and initialize an empty element hash table. |
| 620 | * |
| 621 | * Returns the xmlElementTablePtr just created or NULL in case of error. |
| 622 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 623 | static xmlElementTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 624 | xmlCreateElementTable(void) { |
| 625 | return(xmlHashCreate(0)); |
| 626 | } |
| 627 | |
| 628 | /** |
| 629 | * xmlFreeElement: |
| 630 | * @elem: An element |
| 631 | * |
| 632 | * Deallocate the memory used by an element definition |
| 633 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 634 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 635 | xmlFreeElement(xmlElementPtr elem) { |
| 636 | if (elem == NULL) return; |
| 637 | xmlUnlinkNode((xmlNodePtr) elem); |
| 638 | xmlFreeElementContent(elem->content); |
| 639 | if (elem->name != NULL) |
| 640 | xmlFree((xmlChar *) elem->name); |
| 641 | if (elem->prefix != NULL) |
| 642 | xmlFree((xmlChar *) elem->prefix); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 643 | xmlFree(elem); |
| 644 | } |
| 645 | |
| 646 | |
| 647 | /** |
| 648 | * xmlAddElementDecl: |
| 649 | * @ctxt: the validation context |
| 650 | * @dtd: pointer to the DTD |
| 651 | * @name: the entity name |
| 652 | * @type: the element type |
| 653 | * @content: the element content tree or NULL |
| 654 | * |
| 655 | * Register a new element declaration |
| 656 | * |
| 657 | * Returns NULL if not, othervise the entity |
| 658 | */ |
| 659 | xmlElementPtr |
| 660 | xmlAddElementDecl(xmlValidCtxtPtr ctxt, xmlDtdPtr dtd, const xmlChar *name, |
| 661 | xmlElementTypeVal type, |
| 662 | xmlElementContentPtr content) { |
| 663 | xmlElementPtr ret; |
| 664 | xmlElementTablePtr table; |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 665 | xmlAttributePtr oldAttributes = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 666 | xmlChar *ns, *uqname; |
| 667 | |
| 668 | if (dtd == NULL) { |
| 669 | xmlGenericError(xmlGenericErrorContext, |
| 670 | "xmlAddElementDecl: dtd == NULL\n"); |
| 671 | return(NULL); |
| 672 | } |
| 673 | if (name == NULL) { |
| 674 | xmlGenericError(xmlGenericErrorContext, |
| 675 | "xmlAddElementDecl: name == NULL\n"); |
| 676 | return(NULL); |
| 677 | } |
| 678 | switch (type) { |
| 679 | case XML_ELEMENT_TYPE_EMPTY: |
| 680 | if (content != NULL) { |
| 681 | xmlGenericError(xmlGenericErrorContext, |
| 682 | "xmlAddElementDecl: content != NULL for EMPTY\n"); |
| 683 | return(NULL); |
| 684 | } |
| 685 | break; |
| 686 | case XML_ELEMENT_TYPE_ANY: |
| 687 | if (content != NULL) { |
| 688 | xmlGenericError(xmlGenericErrorContext, |
| 689 | "xmlAddElementDecl: content != NULL for ANY\n"); |
| 690 | return(NULL); |
| 691 | } |
| 692 | break; |
| 693 | case XML_ELEMENT_TYPE_MIXED: |
| 694 | if (content == NULL) { |
| 695 | xmlGenericError(xmlGenericErrorContext, |
| 696 | "xmlAddElementDecl: content == NULL for MIXED\n"); |
| 697 | return(NULL); |
| 698 | } |
| 699 | break; |
| 700 | case XML_ELEMENT_TYPE_ELEMENT: |
| 701 | if (content == NULL) { |
| 702 | xmlGenericError(xmlGenericErrorContext, |
| 703 | "xmlAddElementDecl: content == NULL for ELEMENT\n"); |
| 704 | return(NULL); |
| 705 | } |
| 706 | break; |
| 707 | default: |
| 708 | xmlGenericError(xmlGenericErrorContext, |
| 709 | "xmlAddElementDecl: unknown type %d\n", type); |
| 710 | return(NULL); |
| 711 | } |
| 712 | |
| 713 | /* |
| 714 | * check if name is a QName |
| 715 | */ |
| 716 | uqname = xmlSplitQName2(name, &ns); |
| 717 | if (uqname != NULL) |
| 718 | name = uqname; |
| 719 | |
| 720 | /* |
| 721 | * Create the Element table if needed. |
| 722 | */ |
| 723 | table = (xmlElementTablePtr) dtd->elements; |
| 724 | if (table == NULL) { |
| 725 | table = xmlCreateElementTable(); |
| 726 | dtd->elements = (void *) table; |
| 727 | } |
| 728 | if (table == NULL) { |
| 729 | xmlGenericError(xmlGenericErrorContext, |
| 730 | "xmlAddElementDecl: Table creation failed!\n"); |
| 731 | return(NULL); |
| 732 | } |
| 733 | |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 734 | /* |
| 735 | * lookup old attributes inserted on an undefined element in the |
| 736 | * internal subset. |
| 737 | */ |
| 738 | if ((dtd->doc != NULL) && (dtd->doc->intSubset != NULL)) { |
| 739 | ret = xmlHashLookup2(dtd->doc->intSubset->elements, name, ns); |
| 740 | if ((ret != NULL) && (ret->etype == XML_ELEMENT_TYPE_UNDEFINED)) { |
| 741 | oldAttributes = ret->attributes; |
| 742 | ret->attributes = NULL; |
| 743 | xmlHashRemoveEntry2(dtd->doc->intSubset->elements, name, ns, NULL); |
| 744 | xmlFreeElement(ret); |
| 745 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 746 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 747 | |
| 748 | /* |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 749 | * The element may already be present if one of its attribute |
| 750 | * was registered first |
| 751 | */ |
| 752 | ret = xmlHashLookup2(table, name, ns); |
| 753 | if (ret != NULL) { |
| 754 | if (ret->etype != XML_ELEMENT_TYPE_UNDEFINED) { |
| 755 | /* |
| 756 | * The element is already defined in this Dtd. |
| 757 | */ |
| 758 | VERROR(ctxt->userData, "Redefinition of element %s\n", name); |
| 759 | if (uqname != NULL) |
| 760 | xmlFree(uqname); |
| 761 | return(NULL); |
| 762 | } |
| 763 | } else { |
| 764 | ret = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 765 | if (ret == NULL) { |
| 766 | xmlGenericError(xmlGenericErrorContext, |
| 767 | "xmlAddElementDecl: out of memory\n"); |
| 768 | return(NULL); |
| 769 | } |
| 770 | memset(ret, 0, sizeof(xmlElement)); |
| 771 | ret->type = XML_ELEMENT_DECL; |
| 772 | |
| 773 | /* |
| 774 | * fill the structure. |
| 775 | */ |
| 776 | ret->name = xmlStrdup(name); |
| 777 | ret->prefix = ns; |
| 778 | |
| 779 | /* |
| 780 | * Validity Check: |
| 781 | * Insertion must not fail |
| 782 | */ |
| 783 | if (xmlHashAddEntry2(table, name, ns, ret)) { |
| 784 | /* |
| 785 | * The element is already defined in this Dtd. |
| 786 | */ |
| 787 | VERROR(ctxt->userData, "Redefinition of element %s\n", name); |
| 788 | xmlFreeElement(ret); |
| 789 | if (uqname != NULL) |
| 790 | xmlFree(uqname); |
| 791 | return(NULL); |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | /* |
| 796 | * Finish to fill the structure. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 797 | */ |
| 798 | ret->etype = type; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 799 | ret->content = xmlCopyElementContent(content); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 800 | ret->attributes = oldAttributes; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 801 | |
| 802 | /* |
| 803 | * Link it to the Dtd |
| 804 | */ |
| 805 | ret->parent = dtd; |
| 806 | ret->doc = dtd->doc; |
| 807 | if (dtd->last == NULL) { |
| 808 | dtd->children = dtd->last = (xmlNodePtr) ret; |
| 809 | } else { |
| 810 | dtd->last->next = (xmlNodePtr) ret; |
| 811 | ret->prev = dtd->last; |
| 812 | dtd->last = (xmlNodePtr) ret; |
| 813 | } |
| 814 | if (uqname != NULL) |
| 815 | xmlFree(uqname); |
| 816 | return(ret); |
| 817 | } |
| 818 | |
| 819 | /** |
| 820 | * xmlFreeElementTable: |
| 821 | * @table: An element table |
| 822 | * |
| 823 | * Deallocate the memory used by an element hash table. |
| 824 | */ |
| 825 | void |
| 826 | xmlFreeElementTable(xmlElementTablePtr table) { |
| 827 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeElement); |
| 828 | } |
| 829 | |
| 830 | /** |
| 831 | * xmlCopyElement: |
| 832 | * @elem: An element |
| 833 | * |
| 834 | * Build a copy of an element. |
| 835 | * |
| 836 | * Returns the new xmlElementPtr or NULL in case of error. |
| 837 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 838 | static xmlElementPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 839 | xmlCopyElement(xmlElementPtr elem) { |
| 840 | xmlElementPtr cur; |
| 841 | |
| 842 | cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 843 | if (cur == NULL) { |
| 844 | xmlGenericError(xmlGenericErrorContext, |
| 845 | "xmlCopyElement: out of memory !\n"); |
| 846 | return(NULL); |
| 847 | } |
| 848 | memset(cur, 0, sizeof(xmlElement)); |
| 849 | cur->type = XML_ELEMENT_DECL; |
| 850 | cur->etype = elem->etype; |
| 851 | if (elem->name != NULL) |
| 852 | cur->name = xmlStrdup(elem->name); |
| 853 | else |
| 854 | cur->name = NULL; |
| 855 | if (elem->prefix != NULL) |
| 856 | cur->prefix = xmlStrdup(elem->prefix); |
| 857 | else |
| 858 | cur->prefix = NULL; |
| 859 | cur->content = xmlCopyElementContent(elem->content); |
| 860 | /* TODO : rebuild the attribute list on the copy */ |
| 861 | cur->attributes = NULL; |
| 862 | return(cur); |
| 863 | } |
| 864 | |
| 865 | /** |
| 866 | * xmlCopyElementTable: |
| 867 | * @table: An element table |
| 868 | * |
| 869 | * Build a copy of an element table. |
| 870 | * |
| 871 | * Returns the new xmlElementTablePtr or NULL in case of error. |
| 872 | */ |
| 873 | xmlElementTablePtr |
| 874 | xmlCopyElementTable(xmlElementTablePtr table) { |
| 875 | return((xmlElementTablePtr) xmlHashCopy(table, |
| 876 | (xmlHashCopier) xmlCopyElement)); |
| 877 | } |
| 878 | |
| 879 | /** |
| 880 | * xmlDumpElementDecl: |
| 881 | * @buf: the XML buffer output |
| 882 | * @elem: An element table |
| 883 | * |
| 884 | * This will dump the content of the element declaration as an XML |
| 885 | * DTD definition |
| 886 | */ |
| 887 | void |
| 888 | xmlDumpElementDecl(xmlBufferPtr buf, xmlElementPtr elem) { |
| 889 | switch (elem->etype) { |
| 890 | case XML_ELEMENT_TYPE_EMPTY: |
| 891 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 892 | xmlBufferWriteCHAR(buf, elem->name); |
| 893 | xmlBufferWriteChar(buf, " EMPTY>\n"); |
| 894 | break; |
| 895 | case XML_ELEMENT_TYPE_ANY: |
| 896 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 897 | xmlBufferWriteCHAR(buf, elem->name); |
| 898 | xmlBufferWriteChar(buf, " ANY>\n"); |
| 899 | break; |
| 900 | case XML_ELEMENT_TYPE_MIXED: |
| 901 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 902 | xmlBufferWriteCHAR(buf, elem->name); |
| 903 | xmlBufferWriteChar(buf, " "); |
| 904 | xmlDumpElementContent(buf, elem->content, 1); |
| 905 | xmlBufferWriteChar(buf, ">\n"); |
| 906 | break; |
| 907 | case XML_ELEMENT_TYPE_ELEMENT: |
| 908 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 909 | xmlBufferWriteCHAR(buf, elem->name); |
| 910 | xmlBufferWriteChar(buf, " "); |
| 911 | xmlDumpElementContent(buf, elem->content, 1); |
| 912 | xmlBufferWriteChar(buf, ">\n"); |
| 913 | break; |
| 914 | default: |
| 915 | xmlGenericError(xmlGenericErrorContext, |
| 916 | "xmlDumpElementDecl: internal: unknown type %d\n", |
| 917 | elem->etype); |
| 918 | } |
| 919 | } |
| 920 | |
| 921 | /** |
| 922 | * xmlDumpElementTable: |
| 923 | * @buf: the XML buffer output |
| 924 | * @table: An element table |
| 925 | * |
| 926 | * This will dump the content of the element table as an XML DTD definition |
| 927 | */ |
| 928 | void |
| 929 | xmlDumpElementTable(xmlBufferPtr buf, xmlElementTablePtr table) { |
| 930 | xmlHashScan(table, (xmlHashScanner) xmlDumpElementDecl, buf); |
| 931 | } |
| 932 | |
| 933 | /** |
| 934 | * xmlCreateEnumeration: |
| 935 | * @name: the enumeration name or NULL |
| 936 | * |
| 937 | * create and initialize an enumeration attribute node. |
| 938 | * |
| 939 | * Returns the xmlEnumerationPtr just created or NULL in case |
| 940 | * of error. |
| 941 | */ |
| 942 | xmlEnumerationPtr |
| 943 | xmlCreateEnumeration(xmlChar *name) { |
| 944 | xmlEnumerationPtr ret; |
| 945 | |
| 946 | ret = (xmlEnumerationPtr) xmlMalloc(sizeof(xmlEnumeration)); |
| 947 | if (ret == NULL) { |
| 948 | xmlGenericError(xmlGenericErrorContext, |
| 949 | "xmlCreateEnumeration : xmlMalloc(%ld) failed\n", |
| 950 | (long)sizeof(xmlEnumeration)); |
| 951 | return(NULL); |
| 952 | } |
| 953 | memset(ret, 0, sizeof(xmlEnumeration)); |
| 954 | |
| 955 | if (name != NULL) |
| 956 | ret->name = xmlStrdup(name); |
| 957 | return(ret); |
| 958 | } |
| 959 | |
| 960 | /** |
| 961 | * xmlFreeEnumeration: |
| 962 | * @cur: the tree to free. |
| 963 | * |
| 964 | * free an enumeration attribute node (recursive). |
| 965 | */ |
| 966 | void |
| 967 | xmlFreeEnumeration(xmlEnumerationPtr cur) { |
| 968 | if (cur == NULL) return; |
| 969 | |
| 970 | if (cur->next != NULL) xmlFreeEnumeration(cur->next); |
| 971 | |
| 972 | if (cur->name != NULL) xmlFree((xmlChar *) cur->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 973 | xmlFree(cur); |
| 974 | } |
| 975 | |
| 976 | /** |
| 977 | * xmlCopyEnumeration: |
| 978 | * @cur: the tree to copy. |
| 979 | * |
| 980 | * Copy an enumeration attribute node (recursive). |
| 981 | * |
| 982 | * Returns the xmlEnumerationPtr just created or NULL in case |
| 983 | * of error. |
| 984 | */ |
| 985 | xmlEnumerationPtr |
| 986 | xmlCopyEnumeration(xmlEnumerationPtr cur) { |
| 987 | xmlEnumerationPtr ret; |
| 988 | |
| 989 | if (cur == NULL) return(NULL); |
| 990 | ret = xmlCreateEnumeration((xmlChar *) cur->name); |
| 991 | |
| 992 | if (cur->next != NULL) ret->next = xmlCopyEnumeration(cur->next); |
| 993 | else ret->next = NULL; |
| 994 | |
| 995 | return(ret); |
| 996 | } |
| 997 | |
| 998 | /** |
| 999 | * xmlDumpEnumeration: |
| 1000 | * @buf: the XML buffer output |
| 1001 | * @enum: An enumeration |
| 1002 | * |
| 1003 | * This will dump the content of the enumeration |
| 1004 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1005 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1006 | xmlDumpEnumeration(xmlBufferPtr buf, xmlEnumerationPtr cur) { |
| 1007 | if (cur == NULL) return; |
| 1008 | |
| 1009 | xmlBufferWriteCHAR(buf, cur->name); |
| 1010 | if (cur->next == NULL) |
| 1011 | xmlBufferWriteChar(buf, ")"); |
| 1012 | else { |
| 1013 | xmlBufferWriteChar(buf, " | "); |
| 1014 | xmlDumpEnumeration(buf, cur->next); |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | /** |
| 1019 | * xmlCreateAttributeTable: |
| 1020 | * |
| 1021 | * create and initialize an empty attribute hash table. |
| 1022 | * |
| 1023 | * Returns the xmlAttributeTablePtr just created or NULL in case |
| 1024 | * of error. |
| 1025 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1026 | static xmlAttributeTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1027 | xmlCreateAttributeTable(void) { |
| 1028 | return(xmlHashCreate(0)); |
| 1029 | } |
| 1030 | |
| 1031 | /** |
| 1032 | * xmlScanAttributeDeclCallback: |
| 1033 | * @attr: the attribute decl |
| 1034 | * @list: the list to update |
| 1035 | * |
| 1036 | * Callback called by xmlScanAttributeDecl when a new attribute |
| 1037 | * has to be entered in the list. |
| 1038 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1039 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1040 | xmlScanAttributeDeclCallback(xmlAttributePtr attr, xmlAttributePtr *list, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1041 | const xmlChar* name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1042 | attr->nexth = *list; |
| 1043 | *list = attr; |
| 1044 | } |
| 1045 | |
| 1046 | /** |
| 1047 | * xmlScanAttributeDecl: |
| 1048 | * @dtd: pointer to the DTD |
| 1049 | * @elem: the element name |
| 1050 | * |
| 1051 | * When inserting a new element scan the DtD for existing attributes |
| 1052 | * for taht element and initialize the Attribute chain |
| 1053 | * |
| 1054 | * Returns the pointer to the first attribute decl in the chain, |
| 1055 | * possibly NULL. |
| 1056 | */ |
| 1057 | xmlAttributePtr |
| 1058 | xmlScanAttributeDecl(xmlDtdPtr dtd, const xmlChar *elem) { |
| 1059 | xmlAttributePtr ret = NULL; |
| 1060 | xmlAttributeTablePtr table; |
| 1061 | |
| 1062 | if (dtd == NULL) { |
| 1063 | xmlGenericError(xmlGenericErrorContext, |
| 1064 | "xmlScanAttributeDecl: dtd == NULL\n"); |
| 1065 | return(NULL); |
| 1066 | } |
| 1067 | if (elem == NULL) { |
| 1068 | xmlGenericError(xmlGenericErrorContext, |
| 1069 | "xmlScanAttributeDecl: elem == NULL\n"); |
| 1070 | return(NULL); |
| 1071 | } |
| 1072 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 1073 | if (table == NULL) |
| 1074 | return(NULL); |
| 1075 | |
| 1076 | /* WRONG !!! */ |
| 1077 | xmlHashScan3(table, NULL, NULL, elem, |
| 1078 | (xmlHashScanner) xmlScanAttributeDeclCallback, &ret); |
| 1079 | return(ret); |
| 1080 | } |
| 1081 | |
| 1082 | /** |
| 1083 | * xmlScanIDAttributeDecl: |
| 1084 | * @ctxt: the validation context |
| 1085 | * @elem: the element name |
| 1086 | * |
| 1087 | * Verify that the element don't have too many ID attributes |
| 1088 | * declared. |
| 1089 | * |
| 1090 | * Returns the number of ID attributes found. |
| 1091 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1092 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1093 | xmlScanIDAttributeDecl(xmlValidCtxtPtr ctxt, xmlElementPtr elem) { |
| 1094 | xmlAttributePtr cur; |
| 1095 | int ret = 0; |
| 1096 | |
| 1097 | if (elem == NULL) return(0); |
| 1098 | cur = elem->attributes; |
| 1099 | while (cur != NULL) { |
| 1100 | if (cur->atype == XML_ATTRIBUTE_ID) { |
| 1101 | ret ++; |
| 1102 | if (ret > 1) |
| 1103 | VERROR(ctxt->userData, |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 1104 | "Element %s has too many ID attributes defined : %s\n", |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1105 | elem->name, cur->name); |
| 1106 | } |
| 1107 | cur = cur->nexth; |
| 1108 | } |
| 1109 | return(ret); |
| 1110 | } |
| 1111 | |
| 1112 | /** |
| 1113 | * xmlFreeAttribute: |
| 1114 | * @elem: An attribute |
| 1115 | * |
| 1116 | * Deallocate the memory used by an attribute definition |
| 1117 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1118 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1119 | xmlFreeAttribute(xmlAttributePtr attr) { |
| 1120 | if (attr == NULL) return; |
| 1121 | xmlUnlinkNode((xmlNodePtr) attr); |
| 1122 | if (attr->tree != NULL) |
| 1123 | xmlFreeEnumeration(attr->tree); |
| 1124 | if (attr->elem != NULL) |
| 1125 | xmlFree((xmlChar *) attr->elem); |
| 1126 | if (attr->name != NULL) |
| 1127 | xmlFree((xmlChar *) attr->name); |
| 1128 | if (attr->defaultValue != NULL) |
| 1129 | xmlFree((xmlChar *) attr->defaultValue); |
| 1130 | if (attr->prefix != NULL) |
| 1131 | xmlFree((xmlChar *) attr->prefix); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1132 | xmlFree(attr); |
| 1133 | } |
| 1134 | |
| 1135 | |
| 1136 | /** |
| 1137 | * xmlAddAttributeDecl: |
| 1138 | * @ctxt: the validation context |
| 1139 | * @dtd: pointer to the DTD |
| 1140 | * @elem: the element name |
| 1141 | * @name: the attribute name |
| 1142 | * @ns: the attribute namespace prefix |
| 1143 | * @type: the attribute type |
| 1144 | * @def: the attribute default type |
| 1145 | * @defaultValue: the attribute default value |
| 1146 | * @tree: if it's an enumeration, the associated list |
| 1147 | * |
| 1148 | * Register a new attribute declaration |
| 1149 | * Note that @tree becomes the ownership of the DTD |
| 1150 | * |
| 1151 | * Returns NULL if not new, othervise the attribute decl |
| 1152 | */ |
| 1153 | xmlAttributePtr |
| 1154 | xmlAddAttributeDecl(xmlValidCtxtPtr ctxt, xmlDtdPtr dtd, const xmlChar *elem, |
| 1155 | const xmlChar *name, const xmlChar *ns, |
| 1156 | xmlAttributeType type, xmlAttributeDefault def, |
| 1157 | const xmlChar *defaultValue, xmlEnumerationPtr tree) { |
| 1158 | xmlAttributePtr ret; |
| 1159 | xmlAttributeTablePtr table; |
| 1160 | xmlElementPtr elemDef; |
| 1161 | |
| 1162 | if (dtd == NULL) { |
| 1163 | xmlGenericError(xmlGenericErrorContext, |
| 1164 | "xmlAddAttributeDecl: dtd == NULL\n"); |
| 1165 | xmlFreeEnumeration(tree); |
| 1166 | return(NULL); |
| 1167 | } |
| 1168 | if (name == NULL) { |
| 1169 | xmlGenericError(xmlGenericErrorContext, |
| 1170 | "xmlAddAttributeDecl: name == NULL\n"); |
| 1171 | xmlFreeEnumeration(tree); |
| 1172 | return(NULL); |
| 1173 | } |
| 1174 | if (elem == NULL) { |
| 1175 | xmlGenericError(xmlGenericErrorContext, |
| 1176 | "xmlAddAttributeDecl: elem == NULL\n"); |
| 1177 | xmlFreeEnumeration(tree); |
| 1178 | return(NULL); |
| 1179 | } |
| 1180 | /* |
| 1181 | * Check the type and possibly the default value. |
| 1182 | */ |
| 1183 | switch (type) { |
| 1184 | case XML_ATTRIBUTE_CDATA: |
| 1185 | break; |
| 1186 | case XML_ATTRIBUTE_ID: |
| 1187 | break; |
| 1188 | case XML_ATTRIBUTE_IDREF: |
| 1189 | break; |
| 1190 | case XML_ATTRIBUTE_IDREFS: |
| 1191 | break; |
| 1192 | case XML_ATTRIBUTE_ENTITY: |
| 1193 | break; |
| 1194 | case XML_ATTRIBUTE_ENTITIES: |
| 1195 | break; |
| 1196 | case XML_ATTRIBUTE_NMTOKEN: |
| 1197 | break; |
| 1198 | case XML_ATTRIBUTE_NMTOKENS: |
| 1199 | break; |
| 1200 | case XML_ATTRIBUTE_ENUMERATION: |
| 1201 | break; |
| 1202 | case XML_ATTRIBUTE_NOTATION: |
| 1203 | break; |
| 1204 | default: |
| 1205 | xmlGenericError(xmlGenericErrorContext, |
| 1206 | "xmlAddAttributeDecl: unknown type %d\n", type); |
| 1207 | xmlFreeEnumeration(tree); |
| 1208 | return(NULL); |
| 1209 | } |
| 1210 | if ((defaultValue != NULL) && |
| 1211 | (!xmlValidateAttributeValue(type, defaultValue))) { |
| 1212 | VERROR(ctxt->userData, "Attribute %s on %s: invalid default value\n", |
| 1213 | elem, name, defaultValue); |
| 1214 | defaultValue = NULL; |
| 1215 | } |
| 1216 | |
| 1217 | /* |
| 1218 | * Create the Attribute table if needed. |
| 1219 | */ |
| 1220 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 1221 | if (table == NULL) { |
| 1222 | table = xmlCreateAttributeTable(); |
| 1223 | dtd->attributes = (void *) table; |
| 1224 | } |
| 1225 | if (table == NULL) { |
| 1226 | xmlGenericError(xmlGenericErrorContext, |
| 1227 | "xmlAddAttributeDecl: Table creation failed!\n"); |
| 1228 | return(NULL); |
| 1229 | } |
| 1230 | |
| 1231 | |
| 1232 | ret = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute)); |
| 1233 | if (ret == NULL) { |
| 1234 | xmlGenericError(xmlGenericErrorContext, |
| 1235 | "xmlAddAttributeDecl: out of memory\n"); |
| 1236 | return(NULL); |
| 1237 | } |
| 1238 | memset(ret, 0, sizeof(xmlAttribute)); |
| 1239 | ret->type = XML_ATTRIBUTE_DECL; |
| 1240 | |
| 1241 | /* |
| 1242 | * fill the structure. |
| 1243 | */ |
| 1244 | ret->atype = type; |
| 1245 | ret->name = xmlStrdup(name); |
| 1246 | ret->prefix = xmlStrdup(ns); |
| 1247 | ret->elem = xmlStrdup(elem); |
| 1248 | ret->def = def; |
| 1249 | ret->tree = tree; |
| 1250 | if (defaultValue != NULL) |
| 1251 | ret->defaultValue = xmlStrdup(defaultValue); |
| 1252 | |
| 1253 | /* |
| 1254 | * Validity Check: |
| 1255 | * Search the DTD for previous declarations of the ATTLIST |
| 1256 | */ |
| 1257 | if (xmlHashAddEntry3(table, name, ns, elem, ret) < 0) { |
| 1258 | /* |
| 1259 | * The attribute is already defined in this Dtd. |
| 1260 | */ |
| 1261 | VWARNING(ctxt->userData, |
| 1262 | "Attribute %s on %s: already defined\n", |
| 1263 | name, elem); |
| 1264 | xmlFreeAttribute(ret); |
| 1265 | return(NULL); |
| 1266 | } |
| 1267 | |
| 1268 | /* |
| 1269 | * Validity Check: |
| 1270 | * Multiple ID per element |
| 1271 | */ |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 1272 | elemDef = xmlGetDtdElementDesc2(dtd, elem, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1273 | if (elemDef != NULL) { |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame^] | 1274 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1275 | if ((type == XML_ATTRIBUTE_ID) && |
| 1276 | (xmlScanIDAttributeDecl(NULL, elemDef) != 0)) |
| 1277 | VERROR(ctxt->userData, |
| 1278 | "Element %s has too may ID attributes defined : %s\n", |
| 1279 | elem, name); |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame^] | 1280 | /* |
| 1281 | * Insert namespace default def first they need to be |
| 1282 | * processed firt. |
| 1283 | */ |
| 1284 | if ((xmlStrEqual(ret->name, BAD_CAST "xmlns")) || |
| 1285 | ((ret->prefix != NULL && |
| 1286 | (xmlStrEqual(ret->prefix, BAD_CAST "xmlns"))))) { |
| 1287 | ret->nexth = elemDef->attributes; |
| 1288 | elemDef->attributes = ret; |
| 1289 | } else { |
| 1290 | xmlAttributePtr tmp = elemDef->attributes; |
| 1291 | |
| 1292 | while ((tmp != NULL) && |
| 1293 | ((xmlStrEqual(tmp->name, BAD_CAST "xmlns")) || |
| 1294 | ((ret->prefix != NULL && |
| 1295 | (xmlStrEqual(ret->prefix, BAD_CAST "xmlns")))))) { |
| 1296 | if (tmp->nexth == NULL) |
| 1297 | break; |
| 1298 | tmp = tmp->nexth; |
| 1299 | } |
| 1300 | if (tmp != NULL) { |
| 1301 | ret->nexth = tmp->nexth; |
| 1302 | tmp->nexth = ret; |
| 1303 | } else { |
| 1304 | ret->nexth = elemDef->attributes; |
| 1305 | elemDef->attributes = ret; |
| 1306 | } |
| 1307 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1308 | } |
| 1309 | |
| 1310 | /* |
| 1311 | * Link it to the Dtd |
| 1312 | */ |
| 1313 | ret->parent = dtd; |
| 1314 | ret->doc = dtd->doc; |
| 1315 | if (dtd->last == NULL) { |
| 1316 | dtd->children = dtd->last = (xmlNodePtr) ret; |
| 1317 | } else { |
| 1318 | dtd->last->next = (xmlNodePtr) ret; |
| 1319 | ret->prev = dtd->last; |
| 1320 | dtd->last = (xmlNodePtr) ret; |
| 1321 | } |
| 1322 | return(ret); |
| 1323 | } |
| 1324 | |
| 1325 | /** |
| 1326 | * xmlFreeAttributeTable: |
| 1327 | * @table: An attribute table |
| 1328 | * |
| 1329 | * Deallocate the memory used by an entities hash table. |
| 1330 | */ |
| 1331 | void |
| 1332 | xmlFreeAttributeTable(xmlAttributeTablePtr table) { |
| 1333 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeAttribute); |
| 1334 | } |
| 1335 | |
| 1336 | /** |
| 1337 | * xmlCopyAttribute: |
| 1338 | * @attr: An attribute |
| 1339 | * |
| 1340 | * Build a copy of an attribute. |
| 1341 | * |
| 1342 | * Returns the new xmlAttributePtr or NULL in case of error. |
| 1343 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1344 | static xmlAttributePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1345 | xmlCopyAttribute(xmlAttributePtr attr) { |
| 1346 | xmlAttributePtr cur; |
| 1347 | |
| 1348 | cur = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute)); |
| 1349 | if (cur == NULL) { |
| 1350 | xmlGenericError(xmlGenericErrorContext, |
| 1351 | "xmlCopyAttribute: out of memory !\n"); |
| 1352 | return(NULL); |
| 1353 | } |
| 1354 | memset(cur, 0, sizeof(xmlAttribute)); |
| 1355 | cur->atype = attr->atype; |
| 1356 | cur->def = attr->def; |
| 1357 | cur->tree = xmlCopyEnumeration(attr->tree); |
| 1358 | if (attr->elem != NULL) |
| 1359 | cur->elem = xmlStrdup(attr->elem); |
| 1360 | if (attr->name != NULL) |
| 1361 | cur->name = xmlStrdup(attr->name); |
| 1362 | if (attr->defaultValue != NULL) |
| 1363 | cur->defaultValue = xmlStrdup(attr->defaultValue); |
| 1364 | return(cur); |
| 1365 | } |
| 1366 | |
| 1367 | /** |
| 1368 | * xmlCopyAttributeTable: |
| 1369 | * @table: An attribute table |
| 1370 | * |
| 1371 | * Build a copy of an attribute table. |
| 1372 | * |
| 1373 | * Returns the new xmlAttributeTablePtr or NULL in case of error. |
| 1374 | */ |
| 1375 | xmlAttributeTablePtr |
| 1376 | xmlCopyAttributeTable(xmlAttributeTablePtr table) { |
| 1377 | return((xmlAttributeTablePtr) xmlHashCopy(table, |
| 1378 | (xmlHashCopier) xmlCopyAttribute)); |
| 1379 | } |
| 1380 | |
| 1381 | /** |
| 1382 | * xmlDumpAttributeDecl: |
| 1383 | * @buf: the XML buffer output |
| 1384 | * @attr: An attribute declaration |
| 1385 | * |
| 1386 | * This will dump the content of the attribute declaration as an XML |
| 1387 | * DTD definition |
| 1388 | */ |
| 1389 | void |
| 1390 | xmlDumpAttributeDecl(xmlBufferPtr buf, xmlAttributePtr attr) { |
| 1391 | xmlBufferWriteChar(buf, "<!ATTLIST "); |
| 1392 | xmlBufferWriteCHAR(buf, attr->elem); |
| 1393 | xmlBufferWriteChar(buf, " "); |
| 1394 | if (attr->prefix != NULL) { |
| 1395 | xmlBufferWriteCHAR(buf, attr->prefix); |
| 1396 | xmlBufferWriteChar(buf, ":"); |
| 1397 | } |
| 1398 | xmlBufferWriteCHAR(buf, attr->name); |
| 1399 | switch (attr->atype) { |
| 1400 | case XML_ATTRIBUTE_CDATA: |
| 1401 | xmlBufferWriteChar(buf, " CDATA"); |
| 1402 | break; |
| 1403 | case XML_ATTRIBUTE_ID: |
| 1404 | xmlBufferWriteChar(buf, " ID"); |
| 1405 | break; |
| 1406 | case XML_ATTRIBUTE_IDREF: |
| 1407 | xmlBufferWriteChar(buf, " IDREF"); |
| 1408 | break; |
| 1409 | case XML_ATTRIBUTE_IDREFS: |
| 1410 | xmlBufferWriteChar(buf, " IDREFS"); |
| 1411 | break; |
| 1412 | case XML_ATTRIBUTE_ENTITY: |
| 1413 | xmlBufferWriteChar(buf, " ENTITY"); |
| 1414 | break; |
| 1415 | case XML_ATTRIBUTE_ENTITIES: |
| 1416 | xmlBufferWriteChar(buf, " ENTITIES"); |
| 1417 | break; |
| 1418 | case XML_ATTRIBUTE_NMTOKEN: |
| 1419 | xmlBufferWriteChar(buf, " NMTOKEN"); |
| 1420 | break; |
| 1421 | case XML_ATTRIBUTE_NMTOKENS: |
| 1422 | xmlBufferWriteChar(buf, " NMTOKENS"); |
| 1423 | break; |
| 1424 | case XML_ATTRIBUTE_ENUMERATION: |
| 1425 | xmlBufferWriteChar(buf, " ("); |
| 1426 | xmlDumpEnumeration(buf, attr->tree); |
| 1427 | break; |
| 1428 | case XML_ATTRIBUTE_NOTATION: |
| 1429 | xmlBufferWriteChar(buf, " NOTATION ("); |
| 1430 | xmlDumpEnumeration(buf, attr->tree); |
| 1431 | break; |
| 1432 | default: |
| 1433 | xmlGenericError(xmlGenericErrorContext, |
| 1434 | "xmlDumpAttributeTable: internal: unknown type %d\n", |
| 1435 | attr->atype); |
| 1436 | } |
| 1437 | switch (attr->def) { |
| 1438 | case XML_ATTRIBUTE_NONE: |
| 1439 | break; |
| 1440 | case XML_ATTRIBUTE_REQUIRED: |
| 1441 | xmlBufferWriteChar(buf, " #REQUIRED"); |
| 1442 | break; |
| 1443 | case XML_ATTRIBUTE_IMPLIED: |
| 1444 | xmlBufferWriteChar(buf, " #IMPLIED"); |
| 1445 | break; |
| 1446 | case XML_ATTRIBUTE_FIXED: |
| 1447 | xmlBufferWriteChar(buf, " #FIXED"); |
| 1448 | break; |
| 1449 | default: |
| 1450 | xmlGenericError(xmlGenericErrorContext, |
| 1451 | "xmlDumpAttributeTable: internal: unknown default %d\n", |
| 1452 | attr->def); |
| 1453 | } |
| 1454 | if (attr->defaultValue != NULL) { |
| 1455 | xmlBufferWriteChar(buf, " "); |
| 1456 | xmlBufferWriteQuotedString(buf, attr->defaultValue); |
| 1457 | } |
| 1458 | xmlBufferWriteChar(buf, ">\n"); |
| 1459 | } |
| 1460 | |
| 1461 | /** |
| 1462 | * xmlDumpAttributeTable: |
| 1463 | * @buf: the XML buffer output |
| 1464 | * @table: An attribute table |
| 1465 | * |
| 1466 | * This will dump the content of the attribute table as an XML DTD definition |
| 1467 | */ |
| 1468 | void |
| 1469 | xmlDumpAttributeTable(xmlBufferPtr buf, xmlAttributeTablePtr table) { |
| 1470 | xmlHashScan(table, (xmlHashScanner) xmlDumpAttributeDecl, buf); |
| 1471 | } |
| 1472 | |
| 1473 | /************************************************************************ |
| 1474 | * * |
| 1475 | * NOTATIONs * |
| 1476 | * * |
| 1477 | ************************************************************************/ |
| 1478 | /** |
| 1479 | * xmlCreateNotationTable: |
| 1480 | * |
| 1481 | * create and initialize an empty notation hash table. |
| 1482 | * |
| 1483 | * Returns the xmlNotationTablePtr just created or NULL in case |
| 1484 | * of error. |
| 1485 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1486 | static xmlNotationTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1487 | xmlCreateNotationTable(void) { |
| 1488 | return(xmlHashCreate(0)); |
| 1489 | } |
| 1490 | |
| 1491 | /** |
| 1492 | * xmlFreeNotation: |
| 1493 | * @not: A notation |
| 1494 | * |
| 1495 | * Deallocate the memory used by an notation definition |
| 1496 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1497 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1498 | xmlFreeNotation(xmlNotationPtr nota) { |
| 1499 | if (nota == NULL) return; |
| 1500 | if (nota->name != NULL) |
| 1501 | xmlFree((xmlChar *) nota->name); |
| 1502 | if (nota->PublicID != NULL) |
| 1503 | xmlFree((xmlChar *) nota->PublicID); |
| 1504 | if (nota->SystemID != NULL) |
| 1505 | xmlFree((xmlChar *) nota->SystemID); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1506 | xmlFree(nota); |
| 1507 | } |
| 1508 | |
| 1509 | |
| 1510 | /** |
| 1511 | * xmlAddNotationDecl: |
| 1512 | * @dtd: pointer to the DTD |
| 1513 | * @ctxt: the validation context |
| 1514 | * @name: the entity name |
| 1515 | * @PublicID: the public identifier or NULL |
| 1516 | * @SystemID: the system identifier or NULL |
| 1517 | * |
| 1518 | * Register a new notation declaration |
| 1519 | * |
| 1520 | * Returns NULL if not, othervise the entity |
| 1521 | */ |
| 1522 | xmlNotationPtr |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1523 | xmlAddNotationDecl(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDtdPtr dtd, |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1524 | const xmlChar *name, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1525 | const xmlChar *PublicID, const xmlChar *SystemID) { |
| 1526 | xmlNotationPtr ret; |
| 1527 | xmlNotationTablePtr table; |
| 1528 | |
| 1529 | if (dtd == NULL) { |
| 1530 | xmlGenericError(xmlGenericErrorContext, |
| 1531 | "xmlAddNotationDecl: dtd == NULL\n"); |
| 1532 | return(NULL); |
| 1533 | } |
| 1534 | if (name == NULL) { |
| 1535 | xmlGenericError(xmlGenericErrorContext, |
| 1536 | "xmlAddNotationDecl: name == NULL\n"); |
| 1537 | return(NULL); |
| 1538 | } |
| 1539 | if ((PublicID == NULL) && (SystemID == NULL)) { |
| 1540 | xmlGenericError(xmlGenericErrorContext, |
| 1541 | "xmlAddNotationDecl: no PUBLIC ID nor SYSTEM ID\n"); |
| 1542 | } |
| 1543 | |
| 1544 | /* |
| 1545 | * Create the Notation table if needed. |
| 1546 | */ |
| 1547 | table = (xmlNotationTablePtr) dtd->notations; |
| 1548 | if (table == NULL) |
| 1549 | dtd->notations = table = xmlCreateNotationTable(); |
| 1550 | if (table == NULL) { |
| 1551 | xmlGenericError(xmlGenericErrorContext, |
| 1552 | "xmlAddNotationDecl: Table creation failed!\n"); |
| 1553 | return(NULL); |
| 1554 | } |
| 1555 | |
| 1556 | ret = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation)); |
| 1557 | if (ret == NULL) { |
| 1558 | xmlGenericError(xmlGenericErrorContext, |
| 1559 | "xmlAddNotationDecl: out of memory\n"); |
| 1560 | return(NULL); |
| 1561 | } |
| 1562 | memset(ret, 0, sizeof(xmlNotation)); |
| 1563 | |
| 1564 | /* |
| 1565 | * fill the structure. |
| 1566 | */ |
| 1567 | ret->name = xmlStrdup(name); |
| 1568 | if (SystemID != NULL) |
| 1569 | ret->SystemID = xmlStrdup(SystemID); |
| 1570 | if (PublicID != NULL) |
| 1571 | ret->PublicID = xmlStrdup(PublicID); |
| 1572 | |
| 1573 | /* |
| 1574 | * Validity Check: |
| 1575 | * Check the DTD for previous declarations of the ATTLIST |
| 1576 | */ |
| 1577 | if (xmlHashAddEntry(table, name, ret)) { |
| 1578 | xmlGenericError(xmlGenericErrorContext, |
| 1579 | "xmlAddNotationDecl: %s already defined\n", name); |
| 1580 | xmlFreeNotation(ret); |
| 1581 | return(NULL); |
| 1582 | } |
| 1583 | return(ret); |
| 1584 | } |
| 1585 | |
| 1586 | /** |
| 1587 | * xmlFreeNotationTable: |
| 1588 | * @table: An notation table |
| 1589 | * |
| 1590 | * Deallocate the memory used by an entities hash table. |
| 1591 | */ |
| 1592 | void |
| 1593 | xmlFreeNotationTable(xmlNotationTablePtr table) { |
| 1594 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeNotation); |
| 1595 | } |
| 1596 | |
| 1597 | /** |
| 1598 | * xmlCopyNotation: |
| 1599 | * @nota: A notation |
| 1600 | * |
| 1601 | * Build a copy of a notation. |
| 1602 | * |
| 1603 | * Returns the new xmlNotationPtr or NULL in case of error. |
| 1604 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1605 | static xmlNotationPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1606 | xmlCopyNotation(xmlNotationPtr nota) { |
| 1607 | xmlNotationPtr cur; |
| 1608 | |
| 1609 | cur = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation)); |
| 1610 | if (cur == NULL) { |
| 1611 | xmlGenericError(xmlGenericErrorContext, |
| 1612 | "xmlCopyNotation: out of memory !\n"); |
| 1613 | return(NULL); |
| 1614 | } |
| 1615 | if (nota->name != NULL) |
| 1616 | cur->name = xmlStrdup(nota->name); |
| 1617 | else |
| 1618 | cur->name = NULL; |
| 1619 | if (nota->PublicID != NULL) |
| 1620 | cur->PublicID = xmlStrdup(nota->PublicID); |
| 1621 | else |
| 1622 | cur->PublicID = NULL; |
| 1623 | if (nota->SystemID != NULL) |
| 1624 | cur->SystemID = xmlStrdup(nota->SystemID); |
| 1625 | else |
| 1626 | cur->SystemID = NULL; |
| 1627 | return(cur); |
| 1628 | } |
| 1629 | |
| 1630 | /** |
| 1631 | * xmlCopyNotationTable: |
| 1632 | * @table: A notation table |
| 1633 | * |
| 1634 | * Build a copy of a notation table. |
| 1635 | * |
| 1636 | * Returns the new xmlNotationTablePtr or NULL in case of error. |
| 1637 | */ |
| 1638 | xmlNotationTablePtr |
| 1639 | xmlCopyNotationTable(xmlNotationTablePtr table) { |
| 1640 | return((xmlNotationTablePtr) xmlHashCopy(table, |
| 1641 | (xmlHashCopier) xmlCopyNotation)); |
| 1642 | } |
| 1643 | |
| 1644 | /** |
| 1645 | * xmlDumpNotationDecl: |
| 1646 | * @buf: the XML buffer output |
| 1647 | * @nota: A notation declaration |
| 1648 | * |
| 1649 | * This will dump the content the notation declaration as an XML DTD definition |
| 1650 | */ |
| 1651 | void |
| 1652 | xmlDumpNotationDecl(xmlBufferPtr buf, xmlNotationPtr nota) { |
| 1653 | xmlBufferWriteChar(buf, "<!NOTATION "); |
| 1654 | xmlBufferWriteCHAR(buf, nota->name); |
| 1655 | if (nota->PublicID != NULL) { |
| 1656 | xmlBufferWriteChar(buf, " PUBLIC "); |
| 1657 | xmlBufferWriteQuotedString(buf, nota->PublicID); |
| 1658 | if (nota->SystemID != NULL) { |
| 1659 | xmlBufferWriteChar(buf, " "); |
| 1660 | xmlBufferWriteCHAR(buf, nota->SystemID); |
| 1661 | } |
| 1662 | } else { |
| 1663 | xmlBufferWriteChar(buf, " SYSTEM "); |
| 1664 | xmlBufferWriteCHAR(buf, nota->SystemID); |
| 1665 | } |
| 1666 | xmlBufferWriteChar(buf, " >\n"); |
| 1667 | } |
| 1668 | |
| 1669 | /** |
| 1670 | * xmlDumpNotationTable: |
| 1671 | * @buf: the XML buffer output |
| 1672 | * @table: A notation table |
| 1673 | * |
| 1674 | * This will dump the content of the notation table as an XML DTD definition |
| 1675 | */ |
| 1676 | void |
| 1677 | xmlDumpNotationTable(xmlBufferPtr buf, xmlNotationTablePtr table) { |
| 1678 | xmlHashScan(table, (xmlHashScanner) xmlDumpNotationDecl, buf); |
| 1679 | } |
| 1680 | |
| 1681 | /************************************************************************ |
| 1682 | * * |
| 1683 | * IDs * |
| 1684 | * * |
| 1685 | ************************************************************************/ |
| 1686 | /** |
| 1687 | * xmlCreateIDTable: |
| 1688 | * |
| 1689 | * create and initialize an empty id hash table. |
| 1690 | * |
| 1691 | * Returns the xmlIDTablePtr just created or NULL in case |
| 1692 | * of error. |
| 1693 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1694 | static xmlIDTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1695 | xmlCreateIDTable(void) { |
| 1696 | return(xmlHashCreate(0)); |
| 1697 | } |
| 1698 | |
| 1699 | /** |
| 1700 | * xmlFreeID: |
| 1701 | * @not: A id |
| 1702 | * |
| 1703 | * Deallocate the memory used by an id definition |
| 1704 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1705 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1706 | xmlFreeID(xmlIDPtr id) { |
| 1707 | if (id == NULL) return; |
| 1708 | if (id->value != NULL) |
| 1709 | xmlFree((xmlChar *) id->value); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1710 | xmlFree(id); |
| 1711 | } |
| 1712 | |
| 1713 | /** |
| 1714 | * xmlAddID: |
| 1715 | * @ctxt: the validation context |
| 1716 | * @doc: pointer to the document |
| 1717 | * @value: the value name |
| 1718 | * @attr: the attribute holding the ID |
| 1719 | * |
| 1720 | * Register a new id declaration |
| 1721 | * |
| 1722 | * Returns NULL if not, othervise the new xmlIDPtr |
| 1723 | */ |
| 1724 | xmlIDPtr |
| 1725 | xmlAddID(xmlValidCtxtPtr ctxt, xmlDocPtr doc, const xmlChar *value, |
| 1726 | xmlAttrPtr attr) { |
| 1727 | xmlIDPtr ret; |
| 1728 | xmlIDTablePtr table; |
| 1729 | |
| 1730 | if (doc == NULL) { |
| 1731 | xmlGenericError(xmlGenericErrorContext, |
| 1732 | "xmlAddIDDecl: doc == NULL\n"); |
| 1733 | return(NULL); |
| 1734 | } |
| 1735 | if (value == NULL) { |
| 1736 | xmlGenericError(xmlGenericErrorContext, |
| 1737 | "xmlAddIDDecl: value == NULL\n"); |
| 1738 | return(NULL); |
| 1739 | } |
| 1740 | if (attr == NULL) { |
| 1741 | xmlGenericError(xmlGenericErrorContext, |
| 1742 | "xmlAddIDDecl: attr == NULL\n"); |
| 1743 | return(NULL); |
| 1744 | } |
| 1745 | |
| 1746 | /* |
| 1747 | * Create the ID table if needed. |
| 1748 | */ |
| 1749 | table = (xmlIDTablePtr) doc->ids; |
| 1750 | if (table == NULL) |
| 1751 | doc->ids = table = xmlCreateIDTable(); |
| 1752 | if (table == NULL) { |
| 1753 | xmlGenericError(xmlGenericErrorContext, |
| 1754 | "xmlAddID: Table creation failed!\n"); |
| 1755 | return(NULL); |
| 1756 | } |
| 1757 | |
| 1758 | ret = (xmlIDPtr) xmlMalloc(sizeof(xmlID)); |
| 1759 | if (ret == NULL) { |
| 1760 | xmlGenericError(xmlGenericErrorContext, |
| 1761 | "xmlAddID: out of memory\n"); |
| 1762 | return(NULL); |
| 1763 | } |
| 1764 | |
| 1765 | /* |
| 1766 | * fill the structure. |
| 1767 | */ |
| 1768 | ret->value = xmlStrdup(value); |
| 1769 | ret->attr = attr; |
| 1770 | |
| 1771 | if (xmlHashAddEntry(table, value, ret) < 0) { |
| 1772 | /* |
| 1773 | * The id is already defined in this Dtd. |
| 1774 | */ |
| 1775 | VERROR(ctxt->userData, "ID %s already defined\n", value); |
| 1776 | xmlFreeID(ret); |
| 1777 | return(NULL); |
| 1778 | } |
| 1779 | return(ret); |
| 1780 | } |
| 1781 | |
| 1782 | /** |
| 1783 | * xmlFreeIDTable: |
| 1784 | * @table: An id table |
| 1785 | * |
| 1786 | * Deallocate the memory used by an ID hash table. |
| 1787 | */ |
| 1788 | void |
| 1789 | xmlFreeIDTable(xmlIDTablePtr table) { |
| 1790 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeID); |
| 1791 | } |
| 1792 | |
| 1793 | /** |
| 1794 | * xmlIsID: |
| 1795 | * @doc: the document |
| 1796 | * @elem: the element carrying the attribute |
| 1797 | * @attr: the attribute |
| 1798 | * |
| 1799 | * Determine whether an attribute is of type ID. In case we have Dtd(s) |
| 1800 | * then this is simple, otherwise we use an heuristic: name ID (upper |
| 1801 | * or lowercase). |
| 1802 | * |
| 1803 | * Returns 0 or 1 depending on the lookup result |
| 1804 | */ |
| 1805 | int |
| 1806 | xmlIsID(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) { |
| 1807 | if (doc == NULL) return(0); |
| 1808 | if (attr == NULL) return(0); |
| 1809 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) { |
| 1810 | return(0); |
| 1811 | } else if (doc->type == XML_HTML_DOCUMENT_NODE) { |
| 1812 | if ((xmlStrEqual(BAD_CAST "id", attr->name)) || |
| 1813 | (xmlStrEqual(BAD_CAST "name", attr->name))) |
| 1814 | return(1); |
| 1815 | return(0); |
| 1816 | } else { |
| 1817 | xmlAttributePtr attrDecl; |
| 1818 | |
| 1819 | if (elem == NULL) return(0); |
| 1820 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, attr->name); |
| 1821 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 1822 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, |
| 1823 | attr->name); |
| 1824 | |
| 1825 | if ((attrDecl != NULL) && (attrDecl->atype == XML_ATTRIBUTE_ID)) |
| 1826 | return(1); |
| 1827 | } |
| 1828 | return(0); |
| 1829 | } |
| 1830 | |
| 1831 | /** |
| 1832 | * xmlRemoveID |
| 1833 | * @doc: the document |
| 1834 | * @attr: the attribute |
| 1835 | * |
| 1836 | * Remove the given attribute from the ID table maintained internally. |
| 1837 | * |
| 1838 | * Returns -1 if the lookup failed and 0 otherwise |
| 1839 | */ |
| 1840 | int |
| 1841 | xmlRemoveID(xmlDocPtr doc, xmlAttrPtr attr) { |
| 1842 | xmlAttrPtr cur; |
| 1843 | xmlIDTablePtr table; |
| 1844 | xmlChar *ID; |
| 1845 | |
| 1846 | if (doc == NULL) return(-1); |
| 1847 | if (attr == NULL) return(-1); |
| 1848 | table = (xmlIDTablePtr) doc->ids; |
| 1849 | if (table == NULL) |
| 1850 | return(-1); |
| 1851 | |
| 1852 | if (attr == NULL) |
| 1853 | return(-1); |
| 1854 | ID = xmlNodeListGetString(doc, attr->children, 1); |
| 1855 | if (ID == NULL) |
| 1856 | return(-1); |
| 1857 | cur = xmlHashLookup(table, ID); |
| 1858 | if (cur != attr) { |
| 1859 | xmlFree(ID); |
| 1860 | return(-1); |
| 1861 | } |
| 1862 | xmlHashUpdateEntry(table, ID, NULL, (xmlHashDeallocator) xmlFreeID); |
| 1863 | xmlFree(ID); |
| 1864 | return(0); |
| 1865 | } |
| 1866 | |
| 1867 | /** |
| 1868 | * xmlGetID: |
| 1869 | * @doc: pointer to the document |
| 1870 | * @ID: the ID value |
| 1871 | * |
| 1872 | * Search the attribute declaring the given ID |
| 1873 | * |
| 1874 | * Returns NULL if not found, otherwise the xmlAttrPtr defining the ID |
| 1875 | */ |
| 1876 | xmlAttrPtr |
| 1877 | xmlGetID(xmlDocPtr doc, const xmlChar *ID) { |
| 1878 | xmlIDTablePtr table; |
| 1879 | xmlIDPtr id; |
| 1880 | |
| 1881 | if (doc == NULL) { |
| 1882 | xmlGenericError(xmlGenericErrorContext, "xmlGetID: doc == NULL\n"); |
| 1883 | return(NULL); |
| 1884 | } |
| 1885 | |
| 1886 | if (ID == NULL) { |
| 1887 | xmlGenericError(xmlGenericErrorContext, "xmlGetID: ID == NULL\n"); |
| 1888 | return(NULL); |
| 1889 | } |
| 1890 | |
| 1891 | table = (xmlIDTablePtr) doc->ids; |
| 1892 | if (table == NULL) |
| 1893 | return(NULL); |
| 1894 | |
| 1895 | id = xmlHashLookup(table, ID); |
| 1896 | if (id == NULL) |
| 1897 | return(NULL); |
| 1898 | return(id->attr); |
| 1899 | } |
| 1900 | |
| 1901 | /************************************************************************ |
| 1902 | * * |
| 1903 | * Refs * |
| 1904 | * * |
| 1905 | ************************************************************************/ |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 1906 | typedef struct xmlRemoveMemo_t |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1907 | { |
| 1908 | xmlListPtr l; |
| 1909 | xmlAttrPtr ap; |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 1910 | } xmlRemoveMemo; |
| 1911 | |
| 1912 | typedef xmlRemoveMemo *xmlRemoveMemoPtr; |
| 1913 | |
| 1914 | typedef struct xmlValidateMemo_t |
| 1915 | { |
| 1916 | xmlValidCtxtPtr ctxt; |
| 1917 | const xmlChar *name; |
| 1918 | } xmlValidateMemo; |
| 1919 | |
| 1920 | typedef xmlValidateMemo *xmlValidateMemoPtr; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1921 | |
| 1922 | /** |
| 1923 | * xmlCreateRefTable: |
| 1924 | * |
| 1925 | * create and initialize an empty ref hash table. |
| 1926 | * |
| 1927 | * Returns the xmlRefTablePtr just created or NULL in case |
| 1928 | * of error. |
| 1929 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1930 | static xmlRefTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1931 | xmlCreateRefTable(void) { |
| 1932 | return(xmlHashCreate(0)); |
| 1933 | } |
| 1934 | |
| 1935 | /** |
| 1936 | * xmlFreeRef: |
| 1937 | * @lk: A list link |
| 1938 | * |
| 1939 | * Deallocate the memory used by a ref definition |
| 1940 | */ |
| 1941 | static void |
| 1942 | xmlFreeRef(xmlLinkPtr lk) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1943 | xmlRefPtr ref = (xmlRefPtr)xmlLinkGetData(lk); |
| 1944 | if (ref == NULL) return; |
| 1945 | if (ref->value != NULL) |
| 1946 | xmlFree((xmlChar *)ref->value); |
| 1947 | xmlFree(ref); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1948 | } |
| 1949 | |
| 1950 | /** |
| 1951 | * xmlFreeRefList: |
| 1952 | * @list_ref: A list of references. |
| 1953 | * |
| 1954 | * Deallocate the memory used by a list of references |
| 1955 | */ |
| 1956 | static void |
| 1957 | xmlFreeRefList(xmlListPtr list_ref) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1958 | if (list_ref == NULL) return; |
| 1959 | xmlListDelete(list_ref); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1960 | } |
| 1961 | |
| 1962 | /** |
| 1963 | * xmlWalkRemoveRef: |
| 1964 | * @data: Contents of current link |
| 1965 | * @user: Value supplied by the user |
| 1966 | * |
| 1967 | * Return 0 to abort the walk or 1 to continue |
| 1968 | */ |
| 1969 | static int |
| 1970 | xmlWalkRemoveRef(const void *data, const void *user) |
| 1971 | { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1972 | xmlAttrPtr attr0 = ((xmlRefPtr)data)->attr; |
| 1973 | xmlAttrPtr attr1 = ((xmlRemoveMemoPtr)user)->ap; |
| 1974 | xmlListPtr ref_list = ((xmlRemoveMemoPtr)user)->l; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1975 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1976 | if (attr0 == attr1) { /* Matched: remove and terminate walk */ |
| 1977 | xmlListRemoveFirst(ref_list, (void *)data); |
| 1978 | return 0; |
| 1979 | } |
| 1980 | return 1; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1981 | } |
| 1982 | |
| 1983 | /** |
| 1984 | * xmlAddRef: |
| 1985 | * @ctxt: the validation context |
| 1986 | * @doc: pointer to the document |
| 1987 | * @value: the value name |
| 1988 | * @attr: the attribute holding the Ref |
| 1989 | * |
| 1990 | * Register a new ref declaration |
| 1991 | * |
| 1992 | * Returns NULL if not, othervise the new xmlRefPtr |
| 1993 | */ |
| 1994 | xmlRefPtr |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1995 | xmlAddRef(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDocPtr doc, const xmlChar *value, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1996 | xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1997 | xmlRefPtr ret; |
| 1998 | xmlRefTablePtr table; |
| 1999 | xmlListPtr ref_list; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2000 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2001 | if (doc == NULL) { |
| 2002 | xmlGenericError(xmlGenericErrorContext, |
| 2003 | "xmlAddRefDecl: doc == NULL\n"); |
| 2004 | return(NULL); |
| 2005 | } |
| 2006 | if (value == NULL) { |
| 2007 | xmlGenericError(xmlGenericErrorContext, |
| 2008 | "xmlAddRefDecl: value == NULL\n"); |
| 2009 | return(NULL); |
| 2010 | } |
| 2011 | if (attr == NULL) { |
| 2012 | xmlGenericError(xmlGenericErrorContext, |
| 2013 | "xmlAddRefDecl: attr == NULL\n"); |
| 2014 | return(NULL); |
| 2015 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2016 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2017 | /* |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2018 | * Create the Ref table if needed. |
| 2019 | */ |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2020 | table = (xmlRefTablePtr) doc->refs; |
| 2021 | if (table == NULL) |
| 2022 | doc->refs = table = xmlCreateRefTable(); |
| 2023 | if (table == NULL) { |
| 2024 | xmlGenericError(xmlGenericErrorContext, |
| 2025 | "xmlAddRef: Table creation failed!\n"); |
| 2026 | return(NULL); |
| 2027 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2028 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2029 | ret = (xmlRefPtr) xmlMalloc(sizeof(xmlRef)); |
| 2030 | if (ret == NULL) { |
| 2031 | xmlGenericError(xmlGenericErrorContext, |
| 2032 | "xmlAddRef: out of memory\n"); |
| 2033 | return(NULL); |
| 2034 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2035 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2036 | /* |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2037 | * fill the structure. |
| 2038 | */ |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2039 | ret->value = xmlStrdup(value); |
| 2040 | ret->attr = attr; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2041 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2042 | /* To add a reference :- |
| 2043 | * References are maintained as a list of references, |
| 2044 | * Lookup the entry, if no entry create new nodelist |
| 2045 | * Add the owning node to the NodeList |
| 2046 | * Return the ref |
| 2047 | */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2048 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2049 | if (NULL == (ref_list = xmlHashLookup(table, value))) { |
| 2050 | if (NULL == (ref_list = xmlListCreate(xmlFreeRef, NULL))) { |
| 2051 | xmlGenericError(xmlGenericErrorContext, |
| 2052 | "xmlAddRef: Reference list creation failed!\n"); |
| 2053 | return(NULL); |
| 2054 | } |
| 2055 | if (xmlHashAddEntry(table, value, ref_list) < 0) { |
| 2056 | xmlListDelete(ref_list); |
| 2057 | xmlGenericError(xmlGenericErrorContext, |
| 2058 | "xmlAddRef: Reference list insertion failed!\n"); |
| 2059 | return(NULL); |
| 2060 | } |
| 2061 | } |
| 2062 | xmlListInsert(ref_list, ret); |
| 2063 | return(ret); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2064 | } |
| 2065 | |
| 2066 | /** |
| 2067 | * xmlFreeRefTable: |
| 2068 | * @table: An ref table |
| 2069 | * |
| 2070 | * Deallocate the memory used by an Ref hash table. |
| 2071 | */ |
| 2072 | void |
| 2073 | xmlFreeRefTable(xmlRefTablePtr table) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2074 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeRefList); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2075 | } |
| 2076 | |
| 2077 | /** |
| 2078 | * xmlIsRef: |
| 2079 | * @doc: the document |
| 2080 | * @elem: the element carrying the attribute |
| 2081 | * @attr: the attribute |
| 2082 | * |
| 2083 | * Determine whether an attribute is of type Ref. In case we have Dtd(s) |
| 2084 | * then this is simple, otherwise we use an heuristic: name Ref (upper |
| 2085 | * or lowercase). |
| 2086 | * |
| 2087 | * Returns 0 or 1 depending on the lookup result |
| 2088 | */ |
| 2089 | int |
| 2090 | xmlIsRef(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2091 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) { |
| 2092 | return(0); |
| 2093 | } else if (doc->type == XML_HTML_DOCUMENT_NODE) { |
| 2094 | /* TODO @@@ */ |
| 2095 | return(0); |
| 2096 | } else { |
| 2097 | xmlAttributePtr attrDecl; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2098 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2099 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, attr->name); |
| 2100 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2101 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 2102 | elem->name, attr->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2103 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2104 | if ((attrDecl != NULL) && |
| 2105 | (attrDecl->atype == XML_ATTRIBUTE_IDREF || |
| 2106 | attrDecl->atype == XML_ATTRIBUTE_IDREFS)) |
| 2107 | return(1); |
| 2108 | } |
| 2109 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2110 | } |
| 2111 | |
| 2112 | /** |
| 2113 | * xmlRemoveRef |
| 2114 | * @doc: the document |
| 2115 | * @attr: the attribute |
| 2116 | * |
| 2117 | * Remove the given attribute from the Ref table maintained internally. |
| 2118 | * |
| 2119 | * Returns -1 if the lookup failed and 0 otherwise |
| 2120 | */ |
| 2121 | int |
| 2122 | xmlRemoveRef(xmlDocPtr doc, xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2123 | xmlListPtr ref_list; |
| 2124 | xmlRefTablePtr table; |
| 2125 | xmlChar *ID; |
| 2126 | xmlRemoveMemo target; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2127 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2128 | if (doc == NULL) return(-1); |
| 2129 | if (attr == NULL) return(-1); |
| 2130 | table = (xmlRefTablePtr) doc->refs; |
| 2131 | if (table == NULL) |
| 2132 | return(-1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2133 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2134 | if (attr == NULL) |
| 2135 | return(-1); |
| 2136 | ID = xmlNodeListGetString(doc, attr->children, 1); |
| 2137 | if (ID == NULL) |
| 2138 | return(-1); |
| 2139 | ref_list = xmlHashLookup(table, ID); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2140 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2141 | if(ref_list == NULL) { |
| 2142 | xmlFree(ID); |
| 2143 | return (-1); |
| 2144 | } |
| 2145 | /* At this point, ref_list refers to a list of references which |
| 2146 | * have the same key as the supplied attr. Our list of references |
| 2147 | * is ordered by reference address and we don't have that information |
| 2148 | * here to use when removing. We'll have to walk the list and |
| 2149 | * check for a matching attribute, when we find one stop the walk |
| 2150 | * and remove the entry. |
| 2151 | * The list is ordered by reference, so that means we don't have the |
| 2152 | * key. Passing the list and the reference to the walker means we |
| 2153 | * will have enough data to be able to remove the entry. |
| 2154 | */ |
| 2155 | target.l = ref_list; |
| 2156 | target.ap = attr; |
| 2157 | |
| 2158 | /* Remove the supplied attr from our list */ |
| 2159 | xmlListWalk(ref_list, xmlWalkRemoveRef, &target); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2160 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2161 | /*If the list is empty then remove the list entry in the hash */ |
| 2162 | if (xmlListEmpty(ref_list)) |
| 2163 | xmlHashUpdateEntry(table, ID, NULL, (xmlHashDeallocator) |
| 2164 | xmlFreeRefList); |
| 2165 | xmlFree(ID); |
| 2166 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2167 | } |
| 2168 | |
| 2169 | /** |
| 2170 | * xmlGetRefs: |
| 2171 | * @doc: pointer to the document |
| 2172 | * @ID: the ID value |
| 2173 | * |
| 2174 | * Find the set of references for the supplied ID. |
| 2175 | * |
| 2176 | * Returns NULL if not found, otherwise node set for the ID. |
| 2177 | */ |
| 2178 | xmlListPtr |
| 2179 | xmlGetRefs(xmlDocPtr doc, const xmlChar *ID) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2180 | xmlRefTablePtr table; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2181 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2182 | if (doc == NULL) { |
| 2183 | xmlGenericError(xmlGenericErrorContext, "xmlGetRef: doc == NULL\n"); |
| 2184 | return(NULL); |
| 2185 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2186 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2187 | if (ID == NULL) { |
| 2188 | xmlGenericError(xmlGenericErrorContext, "xmlGetRef: ID == NULL\n"); |
| 2189 | return(NULL); |
| 2190 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2191 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2192 | table = (xmlRefTablePtr) doc->refs; |
| 2193 | if (table == NULL) |
| 2194 | return(NULL); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2195 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2196 | return (xmlHashLookup(table, ID)); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2197 | } |
| 2198 | |
| 2199 | /************************************************************************ |
| 2200 | * * |
| 2201 | * Routines for validity checking * |
| 2202 | * * |
| 2203 | ************************************************************************/ |
| 2204 | |
| 2205 | /** |
| 2206 | * xmlGetDtdElementDesc: |
| 2207 | * @dtd: a pointer to the DtD to search |
| 2208 | * @name: the element name |
| 2209 | * |
| 2210 | * Search the Dtd for the description of this element |
| 2211 | * |
| 2212 | * returns the xmlElementPtr if found or NULL |
| 2213 | */ |
| 2214 | |
| 2215 | xmlElementPtr |
| 2216 | xmlGetDtdElementDesc(xmlDtdPtr dtd, const xmlChar *name) { |
| 2217 | xmlElementTablePtr table; |
| 2218 | xmlElementPtr cur; |
| 2219 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2220 | |
| 2221 | if (dtd == NULL) return(NULL); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2222 | if (dtd->elements == NULL) |
| 2223 | return(NULL); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2224 | table = (xmlElementTablePtr) dtd->elements; |
| 2225 | |
| 2226 | uqname = xmlSplitQName2(name, &prefix); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2227 | if (uqname != NULL) |
| 2228 | name = uqname; |
| 2229 | cur = xmlHashLookup2(table, name, prefix); |
| 2230 | if (prefix != NULL) xmlFree(prefix); |
| 2231 | if (uqname != NULL) xmlFree(uqname); |
| 2232 | return(cur); |
| 2233 | } |
| 2234 | /** |
| 2235 | * xmlGetDtdElementDesc2: |
| 2236 | * @dtd: a pointer to the DtD to search |
| 2237 | * @name: the element name |
| 2238 | * @create: create an empty description if not found |
| 2239 | * |
| 2240 | * Search the Dtd for the description of this element |
| 2241 | * |
| 2242 | * returns the xmlElementPtr if found or NULL |
| 2243 | */ |
| 2244 | |
| 2245 | xmlElementPtr |
| 2246 | xmlGetDtdElementDesc2(xmlDtdPtr dtd, const xmlChar *name, int create) { |
| 2247 | xmlElementTablePtr table; |
| 2248 | xmlElementPtr cur; |
| 2249 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2250 | |
| 2251 | if (dtd == NULL) return(NULL); |
| 2252 | if (dtd->elements == NULL) { |
| 2253 | if (!create) |
| 2254 | return(NULL); |
| 2255 | /* |
| 2256 | * Create the Element table if needed. |
| 2257 | */ |
| 2258 | table = (xmlElementTablePtr) dtd->elements; |
| 2259 | if (table == NULL) { |
| 2260 | table = xmlCreateElementTable(); |
| 2261 | dtd->elements = (void *) table; |
| 2262 | } |
| 2263 | if (table == NULL) { |
| 2264 | xmlGenericError(xmlGenericErrorContext, |
| 2265 | "xmlGetDtdElementDesc: Table creation failed!\n"); |
| 2266 | return(NULL); |
| 2267 | } |
| 2268 | } |
| 2269 | table = (xmlElementTablePtr) dtd->elements; |
| 2270 | |
| 2271 | uqname = xmlSplitQName2(name, &prefix); |
| 2272 | if (uqname != NULL) |
| 2273 | name = uqname; |
| 2274 | cur = xmlHashLookup2(table, name, prefix); |
| 2275 | if ((cur == NULL) && (create)) { |
| 2276 | cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 2277 | if (cur == NULL) { |
| 2278 | xmlGenericError(xmlGenericErrorContext, |
| 2279 | "xmlGetDtdElementDesc: out of memory\n"); |
| 2280 | return(NULL); |
| 2281 | } |
| 2282 | memset(cur, 0, sizeof(xmlElement)); |
| 2283 | cur->type = XML_ELEMENT_DECL; |
| 2284 | |
| 2285 | /* |
| 2286 | * fill the structure. |
| 2287 | */ |
| 2288 | cur->name = xmlStrdup(name); |
| 2289 | cur->prefix = xmlStrdup(prefix); |
| 2290 | cur->etype = XML_ELEMENT_TYPE_UNDEFINED; |
| 2291 | |
| 2292 | xmlHashAddEntry2(table, name, prefix, cur); |
| 2293 | } |
| 2294 | if (prefix != NULL) xmlFree(prefix); |
| 2295 | if (uqname != NULL) xmlFree(uqname); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2296 | return(cur); |
| 2297 | } |
| 2298 | |
| 2299 | /** |
| 2300 | * xmlGetDtdQElementDesc: |
| 2301 | * @dtd: a pointer to the DtD to search |
| 2302 | * @name: the element name |
| 2303 | * @prefix: the element namespace prefix |
| 2304 | * |
| 2305 | * Search the Dtd for the description of this element |
| 2306 | * |
| 2307 | * returns the xmlElementPtr if found or NULL |
| 2308 | */ |
| 2309 | |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame^] | 2310 | xmlElementPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2311 | xmlGetDtdQElementDesc(xmlDtdPtr dtd, const xmlChar *name, |
| 2312 | const xmlChar *prefix) { |
| 2313 | xmlElementTablePtr table; |
| 2314 | |
| 2315 | if (dtd == NULL) return(NULL); |
| 2316 | if (dtd->elements == NULL) return(NULL); |
| 2317 | table = (xmlElementTablePtr) dtd->elements; |
| 2318 | |
| 2319 | return(xmlHashLookup2(table, name, prefix)); |
| 2320 | } |
| 2321 | |
| 2322 | /** |
| 2323 | * xmlGetDtdAttrDesc: |
| 2324 | * @dtd: a pointer to the DtD to search |
| 2325 | * @elem: the element name |
| 2326 | * @name: the attribute name |
| 2327 | * |
| 2328 | * Search the Dtd for the description of this attribute on |
| 2329 | * this element. |
| 2330 | * |
| 2331 | * returns the xmlAttributePtr if found or NULL |
| 2332 | */ |
| 2333 | |
| 2334 | xmlAttributePtr |
| 2335 | xmlGetDtdAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name) { |
| 2336 | xmlAttributeTablePtr table; |
| 2337 | xmlAttributePtr cur; |
| 2338 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2339 | |
| 2340 | if (dtd == NULL) return(NULL); |
| 2341 | if (dtd->attributes == NULL) return(NULL); |
| 2342 | |
| 2343 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 2344 | if (table == NULL) |
| 2345 | return(NULL); |
| 2346 | |
| 2347 | uqname = xmlSplitQName2(name, &prefix); |
| 2348 | |
| 2349 | if (uqname != NULL) { |
| 2350 | cur = xmlHashLookup3(table, uqname, prefix, elem); |
| 2351 | if (prefix != NULL) xmlFree(prefix); |
| 2352 | if (uqname != NULL) xmlFree(uqname); |
| 2353 | } else |
| 2354 | cur = xmlHashLookup3(table, name, NULL, elem); |
| 2355 | return(cur); |
| 2356 | } |
| 2357 | |
| 2358 | /** |
| 2359 | * xmlGetDtdQAttrDesc: |
| 2360 | * @dtd: a pointer to the DtD to search |
| 2361 | * @elem: the element name |
| 2362 | * @name: the attribute name |
| 2363 | * @prefix: the attribute namespace prefix |
| 2364 | * |
| 2365 | * Search the Dtd for the description of this qualified attribute on |
| 2366 | * this element. |
| 2367 | * |
| 2368 | * returns the xmlAttributePtr if found or NULL |
| 2369 | */ |
| 2370 | |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame^] | 2371 | xmlAttributePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2372 | xmlGetDtdQAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name, |
| 2373 | const xmlChar *prefix) { |
| 2374 | xmlAttributeTablePtr table; |
| 2375 | |
| 2376 | if (dtd == NULL) return(NULL); |
| 2377 | if (dtd->attributes == NULL) return(NULL); |
| 2378 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 2379 | |
| 2380 | return(xmlHashLookup3(table, name, prefix, elem)); |
| 2381 | } |
| 2382 | |
| 2383 | /** |
| 2384 | * xmlGetDtdNotationDesc: |
| 2385 | * @dtd: a pointer to the DtD to search |
| 2386 | * @name: the notation name |
| 2387 | * |
| 2388 | * Search the Dtd for the description of this notation |
| 2389 | * |
| 2390 | * returns the xmlNotationPtr if found or NULL |
| 2391 | */ |
| 2392 | |
| 2393 | xmlNotationPtr |
| 2394 | xmlGetDtdNotationDesc(xmlDtdPtr dtd, const xmlChar *name) { |
| 2395 | xmlNotationTablePtr table; |
| 2396 | |
| 2397 | if (dtd == NULL) return(NULL); |
| 2398 | if (dtd->notations == NULL) return(NULL); |
| 2399 | table = (xmlNotationTablePtr) dtd->notations; |
| 2400 | |
| 2401 | return(xmlHashLookup(table, name)); |
| 2402 | } |
| 2403 | |
| 2404 | /** |
| 2405 | * xmlValidateNotationUse: |
| 2406 | * @ctxt: the validation context |
| 2407 | * @doc: the document |
| 2408 | * @notationName: the notation name to check |
| 2409 | * |
| 2410 | * Validate that the given mame match a notation declaration. |
| 2411 | * - [ VC: Notation Declared ] |
| 2412 | * |
| 2413 | * returns 1 if valid or 0 otherwise |
| 2414 | */ |
| 2415 | |
| 2416 | int |
| 2417 | xmlValidateNotationUse(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2418 | const xmlChar *notationName) { |
| 2419 | xmlNotationPtr notaDecl; |
| 2420 | if ((doc == NULL) || (doc->intSubset == NULL)) return(-1); |
| 2421 | |
| 2422 | notaDecl = xmlGetDtdNotationDesc(doc->intSubset, notationName); |
| 2423 | if ((notaDecl == NULL) && (doc->extSubset != NULL)) |
| 2424 | notaDecl = xmlGetDtdNotationDesc(doc->extSubset, notationName); |
| 2425 | |
| 2426 | if (notaDecl == NULL) { |
| 2427 | VERROR(ctxt->userData, "NOTATION %s is not declared\n", |
| 2428 | notationName); |
| 2429 | return(0); |
| 2430 | } |
| 2431 | return(1); |
| 2432 | } |
| 2433 | |
| 2434 | /** |
| 2435 | * xmlIsMixedElement |
| 2436 | * @doc: the document |
| 2437 | * @name: the element name |
| 2438 | * |
| 2439 | * Search in the DtDs whether an element accept Mixed content (or ANY) |
| 2440 | * basically if it is supposed to accept text childs |
| 2441 | * |
| 2442 | * returns 0 if no, 1 if yes, and -1 if no element description is available |
| 2443 | */ |
| 2444 | |
| 2445 | int |
| 2446 | xmlIsMixedElement(xmlDocPtr doc, const xmlChar *name) { |
| 2447 | xmlElementPtr elemDecl; |
| 2448 | |
| 2449 | if ((doc == NULL) || (doc->intSubset == NULL)) return(-1); |
| 2450 | |
| 2451 | elemDecl = xmlGetDtdElementDesc(doc->intSubset, name); |
| 2452 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 2453 | elemDecl = xmlGetDtdElementDesc(doc->extSubset, name); |
| 2454 | if (elemDecl == NULL) return(-1); |
| 2455 | switch (elemDecl->etype) { |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2456 | case XML_ELEMENT_TYPE_UNDEFINED: |
| 2457 | return(-1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2458 | case XML_ELEMENT_TYPE_ELEMENT: |
| 2459 | return(0); |
| 2460 | case XML_ELEMENT_TYPE_EMPTY: |
| 2461 | /* |
| 2462 | * return 1 for EMPTY since we want VC error to pop up |
| 2463 | * on <empty> </empty> for example |
| 2464 | */ |
| 2465 | case XML_ELEMENT_TYPE_ANY: |
| 2466 | case XML_ELEMENT_TYPE_MIXED: |
| 2467 | return(1); |
| 2468 | } |
| 2469 | return(1); |
| 2470 | } |
| 2471 | |
| 2472 | /** |
| 2473 | * xmlValidateNameValue: |
| 2474 | * @value: an Name value |
| 2475 | * |
| 2476 | * Validate that the given value match Name production |
| 2477 | * |
| 2478 | * returns 1 if valid or 0 otherwise |
| 2479 | */ |
| 2480 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2481 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2482 | xmlValidateNameValue(const xmlChar *value) { |
| 2483 | const xmlChar *cur; |
| 2484 | |
| 2485 | if (value == NULL) return(0); |
| 2486 | cur = value; |
| 2487 | |
| 2488 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2489 | (*cur != ':')) { |
| 2490 | return(0); |
| 2491 | } |
| 2492 | |
| 2493 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2494 | (*cur == '.') || (*cur == '-') || |
| 2495 | (*cur == '_') || (*cur == ':') || |
| 2496 | (IS_COMBINING(*cur)) || |
| 2497 | (IS_EXTENDER(*cur))) |
| 2498 | cur++; |
| 2499 | |
| 2500 | if (*cur != 0) return(0); |
| 2501 | |
| 2502 | return(1); |
| 2503 | } |
| 2504 | |
| 2505 | /** |
| 2506 | * xmlValidateNamesValue: |
| 2507 | * @value: an Names value |
| 2508 | * |
| 2509 | * Validate that the given value match Names production |
| 2510 | * |
| 2511 | * returns 1 if valid or 0 otherwise |
| 2512 | */ |
| 2513 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2514 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2515 | xmlValidateNamesValue(const xmlChar *value) { |
| 2516 | const xmlChar *cur; |
| 2517 | |
| 2518 | if (value == NULL) return(0); |
| 2519 | cur = value; |
| 2520 | |
| 2521 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2522 | (*cur != ':')) { |
| 2523 | return(0); |
| 2524 | } |
| 2525 | |
| 2526 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2527 | (*cur == '.') || (*cur == '-') || |
| 2528 | (*cur == '_') || (*cur == ':') || |
| 2529 | (IS_COMBINING(*cur)) || |
| 2530 | (IS_EXTENDER(*cur))) |
| 2531 | cur++; |
| 2532 | |
| 2533 | while (IS_BLANK(*cur)) { |
| 2534 | while (IS_BLANK(*cur)) cur++; |
| 2535 | |
| 2536 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2537 | (*cur != ':')) { |
| 2538 | return(0); |
| 2539 | } |
| 2540 | |
| 2541 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2542 | (*cur == '.') || (*cur == '-') || |
| 2543 | (*cur == '_') || (*cur == ':') || |
| 2544 | (IS_COMBINING(*cur)) || |
| 2545 | (IS_EXTENDER(*cur))) |
| 2546 | cur++; |
| 2547 | } |
| 2548 | |
| 2549 | if (*cur != 0) return(0); |
| 2550 | |
| 2551 | return(1); |
| 2552 | } |
| 2553 | |
| 2554 | /** |
| 2555 | * xmlValidateNmtokenValue: |
| 2556 | * @value: an Mntoken value |
| 2557 | * |
| 2558 | * Validate that the given value match Nmtoken production |
| 2559 | * |
| 2560 | * [ VC: Name Token ] |
| 2561 | * |
| 2562 | * returns 1 if valid or 0 otherwise |
| 2563 | */ |
| 2564 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2565 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2566 | xmlValidateNmtokenValue(const xmlChar *value) { |
| 2567 | const xmlChar *cur; |
| 2568 | |
| 2569 | if (value == NULL) return(0); |
| 2570 | cur = value; |
| 2571 | |
| 2572 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2573 | (*cur != '.') && (*cur != '-') && |
| 2574 | (*cur != '_') && (*cur != ':') && |
| 2575 | (!IS_COMBINING(*cur)) && |
| 2576 | (!IS_EXTENDER(*cur))) |
| 2577 | return(0); |
| 2578 | |
| 2579 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2580 | (*cur == '.') || (*cur == '-') || |
| 2581 | (*cur == '_') || (*cur == ':') || |
| 2582 | (IS_COMBINING(*cur)) || |
| 2583 | (IS_EXTENDER(*cur))) |
| 2584 | cur++; |
| 2585 | |
| 2586 | if (*cur != 0) return(0); |
| 2587 | |
| 2588 | return(1); |
| 2589 | } |
| 2590 | |
| 2591 | /** |
| 2592 | * xmlValidateNmtokensValue: |
| 2593 | * @value: an Mntokens value |
| 2594 | * |
| 2595 | * Validate that the given value match Nmtokens production |
| 2596 | * |
| 2597 | * [ VC: Name Token ] |
| 2598 | * |
| 2599 | * returns 1 if valid or 0 otherwise |
| 2600 | */ |
| 2601 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2602 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2603 | xmlValidateNmtokensValue(const xmlChar *value) { |
| 2604 | const xmlChar *cur; |
| 2605 | |
| 2606 | if (value == NULL) return(0); |
| 2607 | cur = value; |
| 2608 | |
| 2609 | while (IS_BLANK(*cur)) cur++; |
| 2610 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2611 | (*cur != '.') && (*cur != '-') && |
| 2612 | (*cur != '_') && (*cur != ':') && |
| 2613 | (!IS_COMBINING(*cur)) && |
| 2614 | (!IS_EXTENDER(*cur))) |
| 2615 | return(0); |
| 2616 | |
| 2617 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2618 | (*cur == '.') || (*cur == '-') || |
| 2619 | (*cur == '_') || (*cur == ':') || |
| 2620 | (IS_COMBINING(*cur)) || |
| 2621 | (IS_EXTENDER(*cur))) |
| 2622 | cur++; |
| 2623 | |
| 2624 | while (IS_BLANK(*cur)) { |
| 2625 | while (IS_BLANK(*cur)) cur++; |
| 2626 | if (*cur == 0) return(1); |
| 2627 | |
| 2628 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2629 | (*cur != '.') && (*cur != '-') && |
| 2630 | (*cur != '_') && (*cur != ':') && |
| 2631 | (!IS_COMBINING(*cur)) && |
| 2632 | (!IS_EXTENDER(*cur))) |
| 2633 | return(0); |
| 2634 | |
| 2635 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2636 | (*cur == '.') || (*cur == '-') || |
| 2637 | (*cur == '_') || (*cur == ':') || |
| 2638 | (IS_COMBINING(*cur)) || |
| 2639 | (IS_EXTENDER(*cur))) |
| 2640 | cur++; |
| 2641 | } |
| 2642 | |
| 2643 | if (*cur != 0) return(0); |
| 2644 | |
| 2645 | return(1); |
| 2646 | } |
| 2647 | |
| 2648 | /** |
| 2649 | * xmlValidateNotationDecl: |
| 2650 | * @ctxt: the validation context |
| 2651 | * @doc: a document instance |
| 2652 | * @nota: a notation definition |
| 2653 | * |
| 2654 | * Try to validate a single notation definition |
| 2655 | * basically it does the following checks as described by the |
| 2656 | * XML-1.0 recommendation: |
| 2657 | * - it seems that no validity constraing exist on notation declarations |
| 2658 | * But this function get called anyway ... |
| 2659 | * |
| 2660 | * returns 1 if valid or 0 otherwise |
| 2661 | */ |
| 2662 | |
| 2663 | int |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 2664 | xmlValidateNotationDecl(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDocPtr doc ATTRIBUTE_UNUSED, |
| 2665 | xmlNotationPtr nota ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2666 | int ret = 1; |
| 2667 | |
| 2668 | return(ret); |
| 2669 | } |
| 2670 | |
| 2671 | /** |
| 2672 | * xmlValidateAttributeValue: |
| 2673 | * @type: an attribute type |
| 2674 | * @value: an attribute value |
| 2675 | * |
| 2676 | * Validate that the given attribute value match the proper production |
| 2677 | * |
| 2678 | * [ VC: ID ] |
| 2679 | * Values of type ID must match the Name production.... |
| 2680 | * |
| 2681 | * [ VC: IDREF ] |
| 2682 | * Values of type IDREF must match the Name production, and values |
| 2683 | * of type IDREFS must match Names ... |
| 2684 | * |
| 2685 | * [ VC: Entity Name ] |
| 2686 | * Values of type ENTITY must match the Name production, values |
| 2687 | * of type ENTITIES must match Names ... |
| 2688 | * |
| 2689 | * [ VC: Name Token ] |
| 2690 | * Values of type NMTOKEN must match the Nmtoken production; values |
| 2691 | * of type NMTOKENS must match Nmtokens. |
| 2692 | * |
| 2693 | * returns 1 if valid or 0 otherwise |
| 2694 | */ |
| 2695 | |
| 2696 | int |
| 2697 | xmlValidateAttributeValue(xmlAttributeType type, const xmlChar *value) { |
| 2698 | switch (type) { |
| 2699 | case XML_ATTRIBUTE_ENTITIES: |
| 2700 | case XML_ATTRIBUTE_IDREFS: |
| 2701 | return(xmlValidateNamesValue(value)); |
| 2702 | case XML_ATTRIBUTE_ENTITY: |
| 2703 | case XML_ATTRIBUTE_IDREF: |
| 2704 | case XML_ATTRIBUTE_ID: |
| 2705 | case XML_ATTRIBUTE_NOTATION: |
| 2706 | return(xmlValidateNameValue(value)); |
| 2707 | case XML_ATTRIBUTE_NMTOKENS: |
| 2708 | case XML_ATTRIBUTE_ENUMERATION: |
| 2709 | return(xmlValidateNmtokensValue(value)); |
| 2710 | case XML_ATTRIBUTE_NMTOKEN: |
| 2711 | return(xmlValidateNmtokenValue(value)); |
| 2712 | case XML_ATTRIBUTE_CDATA: |
| 2713 | break; |
| 2714 | } |
| 2715 | return(1); |
| 2716 | } |
| 2717 | |
| 2718 | /** |
| 2719 | * xmlValidateAttributeValue2: |
| 2720 | * @ctxt: the validation context |
| 2721 | * @doc: the document |
| 2722 | * @name: the attribute name (used for error reporting only) |
| 2723 | * @type: the attribute type |
| 2724 | * @value: the attribute value |
| 2725 | * |
| 2726 | * Validate that the given attribute value match a given type. |
| 2727 | * This typically cannot be done before having finished parsing |
| 2728 | * the subsets. |
| 2729 | * |
| 2730 | * [ VC: IDREF ] |
| 2731 | * Values of type IDREF must match one of the declared IDs |
| 2732 | * Values of type IDREFS must match a sequence of the declared IDs |
| 2733 | * each Name must match the value of an ID attribute on some element |
| 2734 | * in the XML document; i.e. IDREF values must match the value of |
| 2735 | * some ID attribute |
| 2736 | * |
| 2737 | * [ VC: Entity Name ] |
| 2738 | * Values of type ENTITY must match one declared entity |
| 2739 | * Values of type ENTITIES must match a sequence of declared entities |
| 2740 | * |
| 2741 | * [ VC: Notation Attributes ] |
| 2742 | * all notation names in the declaration must be declared. |
| 2743 | * |
| 2744 | * returns 1 if valid or 0 otherwise |
| 2745 | */ |
| 2746 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2747 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2748 | xmlValidateAttributeValue2(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2749 | const xmlChar *name, xmlAttributeType type, const xmlChar *value) { |
| 2750 | int ret = 1; |
| 2751 | switch (type) { |
| 2752 | case XML_ATTRIBUTE_IDREFS: |
| 2753 | case XML_ATTRIBUTE_IDREF: |
| 2754 | case XML_ATTRIBUTE_ID: |
| 2755 | case XML_ATTRIBUTE_NMTOKENS: |
| 2756 | case XML_ATTRIBUTE_ENUMERATION: |
| 2757 | case XML_ATTRIBUTE_NMTOKEN: |
| 2758 | case XML_ATTRIBUTE_CDATA: |
| 2759 | break; |
| 2760 | case XML_ATTRIBUTE_ENTITY: { |
| 2761 | xmlEntityPtr ent; |
| 2762 | |
| 2763 | ent = xmlGetDocEntity(doc, value); |
| 2764 | if (ent == NULL) { |
| 2765 | VERROR(ctxt->userData, |
| 2766 | "ENTITY attribute %s reference an unknown entity \"%s\"\n", |
| 2767 | name, value); |
| 2768 | ret = 0; |
| 2769 | } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) { |
| 2770 | VERROR(ctxt->userData, |
| 2771 | "ENTITY attribute %s reference an entity \"%s\" of wrong type\n", |
| 2772 | name, value); |
| 2773 | ret = 0; |
| 2774 | } |
| 2775 | break; |
| 2776 | } |
| 2777 | case XML_ATTRIBUTE_ENTITIES: { |
| 2778 | xmlChar *dup, *nam = NULL, *cur, save; |
| 2779 | xmlEntityPtr ent; |
| 2780 | |
| 2781 | dup = xmlStrdup(value); |
| 2782 | if (dup == NULL) |
| 2783 | return(0); |
| 2784 | cur = dup; |
| 2785 | while (*cur != 0) { |
| 2786 | nam = cur; |
| 2787 | while ((*cur != 0) && (!IS_BLANK(*cur))) cur++; |
| 2788 | save = *cur; |
| 2789 | *cur = 0; |
| 2790 | ent = xmlGetDocEntity(doc, nam); |
| 2791 | if (ent == NULL) { |
| 2792 | VERROR(ctxt->userData, |
| 2793 | "ENTITIES attribute %s reference an unknown entity \"%s\"\n", |
| 2794 | name, nam); |
| 2795 | ret = 0; |
| 2796 | } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) { |
| 2797 | VERROR(ctxt->userData, |
| 2798 | "ENTITIES attribute %s reference an entity \"%s\" of wrong type\n", |
| 2799 | name, nam); |
| 2800 | ret = 0; |
| 2801 | } |
| 2802 | if (save == 0) |
| 2803 | break; |
| 2804 | *cur = save; |
| 2805 | while (IS_BLANK(*cur)) cur++; |
| 2806 | } |
| 2807 | xmlFree(dup); |
| 2808 | break; |
| 2809 | } |
| 2810 | case XML_ATTRIBUTE_NOTATION: { |
| 2811 | xmlNotationPtr nota; |
| 2812 | |
| 2813 | nota = xmlGetDtdNotationDesc(doc->intSubset, value); |
| 2814 | if ((nota == NULL) && (doc->extSubset != NULL)) |
| 2815 | nota = xmlGetDtdNotationDesc(doc->extSubset, value); |
| 2816 | |
| 2817 | if (nota == NULL) { |
| 2818 | VERROR(ctxt->userData, |
| 2819 | "NOTATION attribute %s reference an unknown notation \"%s\"\n", |
| 2820 | name, value); |
| 2821 | ret = 0; |
| 2822 | } |
| 2823 | break; |
| 2824 | } |
| 2825 | } |
| 2826 | return(ret); |
| 2827 | } |
| 2828 | |
| 2829 | /** |
| 2830 | * xmlValidNormalizeAttributeValue: |
| 2831 | * @doc: the document |
| 2832 | * @elem: the parent |
| 2833 | * @name: the attribute name |
| 2834 | * @value: the attribute value |
| 2835 | * |
| 2836 | * Does the validation related extra step of the normalization of attribute |
| 2837 | * values: |
| 2838 | * |
| 2839 | * If the declared value is not CDATA, then the XML processor must further |
| 2840 | * process the normalized attribute value by discarding any leading and |
| 2841 | * trailing space (#x20) characters, and by replacing sequences of space |
| 2842 | * (#x20) characters by single space (#x20) character. |
| 2843 | * |
| 2844 | * returns a new normalized string if normalization is needed, NULL otherwise |
| 2845 | * the caller must free the returned value. |
| 2846 | */ |
| 2847 | |
| 2848 | xmlChar * |
| 2849 | xmlValidNormalizeAttributeValue(xmlDocPtr doc, xmlNodePtr elem, |
| 2850 | const xmlChar *name, const xmlChar *value) { |
| 2851 | xmlChar *ret, *dst; |
| 2852 | const xmlChar *src; |
| 2853 | xmlAttributePtr attrDecl = NULL; |
| 2854 | |
| 2855 | if (doc == NULL) return(NULL); |
| 2856 | if (elem == NULL) return(NULL); |
| 2857 | if (name == NULL) return(NULL); |
| 2858 | if (value == NULL) return(NULL); |
| 2859 | |
| 2860 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 2861 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2862 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 2863 | elem->ns->prefix, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2864 | qname[sizeof(qname) - 1] = 0; |
| 2865 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, qname, name); |
| 2866 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2867 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, qname, name); |
| 2868 | } |
| 2869 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, name); |
| 2870 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2871 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, name); |
| 2872 | |
| 2873 | if (attrDecl == NULL) |
| 2874 | return(NULL); |
| 2875 | if (attrDecl->atype == XML_ATTRIBUTE_CDATA) |
| 2876 | return(NULL); |
| 2877 | |
| 2878 | ret = xmlStrdup(value); |
| 2879 | if (ret == NULL) |
| 2880 | return(NULL); |
| 2881 | src = value; |
| 2882 | dst = ret; |
| 2883 | while (*src == 0x20) src++; |
| 2884 | while (*src != 0) { |
| 2885 | if (*src == 0x20) { |
| 2886 | while (*src == 0x20) src++; |
| 2887 | if (*src != 0) |
| 2888 | *dst++ = 0x20; |
| 2889 | } else { |
| 2890 | *dst++ = *src++; |
| 2891 | } |
| 2892 | } |
| 2893 | *dst = 0; |
| 2894 | return(ret); |
| 2895 | } |
| 2896 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2897 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2898 | xmlValidateAttributeIdCallback(xmlAttributePtr attr, int *count, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 2899 | const xmlChar* name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2900 | if (attr->atype == XML_ATTRIBUTE_ID) (*count)++; |
| 2901 | } |
| 2902 | |
| 2903 | /** |
| 2904 | * xmlValidateAttributeDecl: |
| 2905 | * @ctxt: the validation context |
| 2906 | * @doc: a document instance |
| 2907 | * @attr: an attribute definition |
| 2908 | * |
| 2909 | * Try to validate a single attribute definition |
| 2910 | * basically it does the following checks as described by the |
| 2911 | * XML-1.0 recommendation: |
| 2912 | * - [ VC: Attribute Default Legal ] |
| 2913 | * - [ VC: Enumeration ] |
| 2914 | * - [ VC: ID Attribute Default ] |
| 2915 | * |
| 2916 | * The ID/IDREF uniqueness and matching are done separately |
| 2917 | * |
| 2918 | * returns 1 if valid or 0 otherwise |
| 2919 | */ |
| 2920 | |
| 2921 | int |
| 2922 | xmlValidateAttributeDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2923 | xmlAttributePtr attr) { |
| 2924 | int ret = 1; |
| 2925 | int val; |
| 2926 | CHECK_DTD; |
| 2927 | if(attr == NULL) return(1); |
| 2928 | |
| 2929 | /* Attribute Default Legal */ |
| 2930 | /* Enumeration */ |
| 2931 | if (attr->defaultValue != NULL) { |
| 2932 | val = xmlValidateAttributeValue(attr->atype, attr->defaultValue); |
| 2933 | if (val == 0) { |
| 2934 | VERROR(ctxt->userData, |
| 2935 | "Syntax of default value for attribute %s on %s is not valid\n", |
| 2936 | attr->name, attr->elem); |
| 2937 | } |
| 2938 | ret &= val; |
| 2939 | } |
| 2940 | |
| 2941 | /* ID Attribute Default */ |
| 2942 | if ((attr->atype == XML_ATTRIBUTE_ID)&& |
| 2943 | (attr->def != XML_ATTRIBUTE_IMPLIED) && |
| 2944 | (attr->def != XML_ATTRIBUTE_REQUIRED)) { |
| 2945 | VERROR(ctxt->userData, |
| 2946 | "ID attribute %s on %s is not valid must be #IMPLIED or #REQUIRED\n", |
| 2947 | attr->name, attr->elem); |
| 2948 | ret = 0; |
| 2949 | } |
| 2950 | |
| 2951 | /* One ID per Element Type */ |
| 2952 | if (attr->atype == XML_ATTRIBUTE_ID) { |
| 2953 | int nbId; |
| 2954 | |
| 2955 | /* the trick is taht we parse DtD as their own internal subset */ |
| 2956 | xmlElementPtr elem = xmlGetDtdElementDesc(doc->intSubset, |
| 2957 | attr->elem); |
| 2958 | if (elem != NULL) { |
| 2959 | nbId = xmlScanIDAttributeDecl(NULL, elem); |
| 2960 | } else { |
| 2961 | xmlAttributeTablePtr table; |
| 2962 | |
| 2963 | /* |
| 2964 | * The attribute may be declared in the internal subset and the |
| 2965 | * element in the external subset. |
| 2966 | */ |
| 2967 | nbId = 0; |
| 2968 | table = (xmlAttributeTablePtr) doc->intSubset->attributes; |
| 2969 | xmlHashScan3(table, NULL, NULL, attr->elem, (xmlHashScanner) |
| 2970 | xmlValidateAttributeIdCallback, &nbId); |
| 2971 | } |
| 2972 | if (nbId > 1) { |
| 2973 | VERROR(ctxt->userData, |
| 2974 | "Element %s has %d ID attribute defined in the internal subset : %s\n", |
| 2975 | attr->elem, nbId, attr->name); |
| 2976 | } else if (doc->extSubset != NULL) { |
| 2977 | int extId = 0; |
| 2978 | elem = xmlGetDtdElementDesc(doc->extSubset, attr->elem); |
| 2979 | if (elem != NULL) { |
| 2980 | extId = xmlScanIDAttributeDecl(NULL, elem); |
| 2981 | } |
| 2982 | if (extId > 1) { |
| 2983 | VERROR(ctxt->userData, |
| 2984 | "Element %s has %d ID attribute defined in the external subset : %s\n", |
| 2985 | attr->elem, extId, attr->name); |
| 2986 | } else if (extId + nbId > 1) { |
| 2987 | VERROR(ctxt->userData, |
| 2988 | "Element %s has ID attributes defined in the internal and external subset : %s\n", |
| 2989 | attr->elem, attr->name); |
| 2990 | } |
| 2991 | } |
| 2992 | } |
| 2993 | |
| 2994 | /* Validity Constraint: Enumeration */ |
| 2995 | if ((attr->defaultValue != NULL) && (attr->tree != NULL)) { |
| 2996 | xmlEnumerationPtr tree = attr->tree; |
| 2997 | while (tree != NULL) { |
| 2998 | if (xmlStrEqual(tree->name, attr->defaultValue)) break; |
| 2999 | tree = tree->next; |
| 3000 | } |
| 3001 | if (tree == NULL) { |
| 3002 | VERROR(ctxt->userData, |
| 3003 | "Default value \"%s\" for attribute %s on %s is not among the enumerated set\n", |
| 3004 | attr->defaultValue, attr->name, attr->elem); |
| 3005 | ret = 0; |
| 3006 | } |
| 3007 | } |
| 3008 | |
| 3009 | return(ret); |
| 3010 | } |
| 3011 | |
| 3012 | /** |
| 3013 | * xmlValidateElementDecl: |
| 3014 | * @ctxt: the validation context |
| 3015 | * @doc: a document instance |
| 3016 | * @elem: an element definition |
| 3017 | * |
| 3018 | * Try to validate a single element definition |
| 3019 | * basically it does the following checks as described by the |
| 3020 | * XML-1.0 recommendation: |
| 3021 | * - [ VC: One ID per Element Type ] |
| 3022 | * - [ VC: No Duplicate Types ] |
| 3023 | * - [ VC: Unique Element Type Declaration ] |
| 3024 | * |
| 3025 | * returns 1 if valid or 0 otherwise |
| 3026 | */ |
| 3027 | |
| 3028 | int |
| 3029 | xmlValidateElementDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3030 | xmlElementPtr elem) { |
| 3031 | int ret = 1; |
| 3032 | xmlElementPtr tst; |
| 3033 | |
| 3034 | CHECK_DTD; |
| 3035 | |
| 3036 | if (elem == NULL) return(1); |
| 3037 | |
| 3038 | /* No Duplicate Types */ |
| 3039 | if (elem->etype == XML_ELEMENT_TYPE_MIXED) { |
| 3040 | xmlElementContentPtr cur, next; |
| 3041 | const xmlChar *name; |
| 3042 | |
| 3043 | cur = elem->content; |
| 3044 | while (cur != NULL) { |
| 3045 | if (cur->type != XML_ELEMENT_CONTENT_OR) break; |
| 3046 | if (cur->c1 == NULL) break; |
| 3047 | if (cur->c1->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3048 | name = cur->c1->name; |
| 3049 | next = cur->c2; |
| 3050 | while (next != NULL) { |
| 3051 | if (next->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3052 | if (xmlStrEqual(next->name, name)) { |
| 3053 | VERROR(ctxt->userData, |
| 3054 | "Definition of %s has duplicate references of %s\n", |
| 3055 | elem->name, name); |
| 3056 | ret = 0; |
| 3057 | } |
| 3058 | break; |
| 3059 | } |
| 3060 | if (next->c1 == NULL) break; |
| 3061 | if (next->c1->type != XML_ELEMENT_CONTENT_ELEMENT) break; |
| 3062 | if (xmlStrEqual(next->c1->name, name)) { |
| 3063 | VERROR(ctxt->userData, |
| 3064 | "Definition of %s has duplicate references of %s\n", |
| 3065 | elem->name, name); |
| 3066 | ret = 0; |
| 3067 | } |
| 3068 | next = next->c2; |
| 3069 | } |
| 3070 | } |
| 3071 | cur = cur->c2; |
| 3072 | } |
| 3073 | } |
| 3074 | |
| 3075 | /* VC: Unique Element Type Declaration */ |
| 3076 | tst = xmlGetDtdElementDesc(doc->intSubset, elem->name); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3077 | if ((tst != NULL ) && (tst != elem) && |
| 3078 | (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3079 | VERROR(ctxt->userData, "Redefinition of element %s\n", |
| 3080 | elem->name); |
| 3081 | ret = 0; |
| 3082 | } |
| 3083 | tst = xmlGetDtdElementDesc(doc->extSubset, elem->name); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3084 | if ((tst != NULL ) && (tst != elem) && |
| 3085 | (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3086 | VERROR(ctxt->userData, "Redefinition of element %s\n", |
| 3087 | elem->name); |
| 3088 | ret = 0; |
| 3089 | } |
| 3090 | |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3091 | /* One ID per Element Type |
| 3092 | * already done when registering the attribute |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3093 | if (xmlScanIDAttributeDecl(ctxt, elem) > 1) { |
| 3094 | ret = 0; |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3095 | } */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3096 | return(ret); |
| 3097 | } |
| 3098 | |
| 3099 | /** |
| 3100 | * xmlValidateOneAttribute: |
| 3101 | * @ctxt: the validation context |
| 3102 | * @doc: a document instance |
| 3103 | * @elem: an element instance |
| 3104 | * @attr: an attribute instance |
| 3105 | * @value: the attribute value (without entities processing) |
| 3106 | * |
| 3107 | * Try to validate a single attribute for an element |
| 3108 | * basically it does the following checks as described by the |
| 3109 | * XML-1.0 recommendation: |
| 3110 | * - [ VC: Attribute Value Type ] |
| 3111 | * - [ VC: Fixed Attribute Default ] |
| 3112 | * - [ VC: Entity Name ] |
| 3113 | * - [ VC: Name Token ] |
| 3114 | * - [ VC: ID ] |
| 3115 | * - [ VC: IDREF ] |
| 3116 | * - [ VC: Entity Name ] |
| 3117 | * - [ VC: Notation Attributes ] |
| 3118 | * |
| 3119 | * The ID/IDREF uniqueness and matching are done separately |
| 3120 | * |
| 3121 | * returns 1 if valid or 0 otherwise |
| 3122 | */ |
| 3123 | |
| 3124 | int |
| 3125 | xmlValidateOneAttribute(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3126 | xmlNodePtr elem, xmlAttrPtr attr, const xmlChar *value) { |
| 3127 | /* xmlElementPtr elemDecl; */ |
| 3128 | xmlAttributePtr attrDecl = NULL; |
| 3129 | int val; |
| 3130 | int ret = 1; |
| 3131 | |
| 3132 | CHECK_DTD; |
| 3133 | if ((elem == NULL) || (elem->name == NULL)) return(0); |
| 3134 | if ((attr == NULL) || (attr->name == NULL)) return(0); |
| 3135 | |
| 3136 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 3137 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3138 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 3139 | elem->ns->prefix, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3140 | qname[sizeof(qname) - 1] = 0; |
| 3141 | if (attr->ns != NULL) { |
| 3142 | attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, qname, |
| 3143 | attr->name, attr->ns->prefix); |
| 3144 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3145 | attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, qname, |
| 3146 | attr->name, attr->ns->prefix); |
| 3147 | } else { |
| 3148 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, qname, attr->name); |
| 3149 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3150 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 3151 | qname, attr->name); |
| 3152 | } |
| 3153 | } |
| 3154 | if (attrDecl == NULL) { |
| 3155 | if (attr->ns != NULL) { |
| 3156 | attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elem->name, |
| 3157 | attr->name, attr->ns->prefix); |
| 3158 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3159 | attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elem->name, |
| 3160 | attr->name, attr->ns->prefix); |
| 3161 | } else { |
| 3162 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, |
| 3163 | elem->name, attr->name); |
| 3164 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3165 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 3166 | elem->name, attr->name); |
| 3167 | } |
| 3168 | } |
| 3169 | |
| 3170 | |
| 3171 | /* Validity Constraint: Attribute Value Type */ |
| 3172 | if (attrDecl == NULL) { |
| 3173 | VERROR(ctxt->userData, |
| 3174 | "No declaration for attribute %s on element %s\n", |
| 3175 | attr->name, elem->name); |
| 3176 | return(0); |
| 3177 | } |
| 3178 | attr->atype = attrDecl->atype; |
| 3179 | |
| 3180 | val = xmlValidateAttributeValue(attrDecl->atype, value); |
| 3181 | if (val == 0) { |
| 3182 | VERROR(ctxt->userData, |
| 3183 | "Syntax of value for attribute %s on %s is not valid\n", |
| 3184 | attr->name, elem->name); |
| 3185 | ret = 0; |
| 3186 | } |
| 3187 | |
| 3188 | /* Validity constraint: Fixed Attribute Default */ |
| 3189 | if (attrDecl->def == XML_ATTRIBUTE_FIXED) { |
| 3190 | if (!xmlStrEqual(value, attrDecl->defaultValue)) { |
| 3191 | VERROR(ctxt->userData, |
| 3192 | "Value for attribute %s on %s is differnt from default \"%s\"\n", |
| 3193 | attr->name, elem->name, attrDecl->defaultValue); |
| 3194 | ret = 0; |
| 3195 | } |
| 3196 | } |
| 3197 | |
| 3198 | /* Validity Constraint: ID uniqueness */ |
| 3199 | if (attrDecl->atype == XML_ATTRIBUTE_ID) { |
| 3200 | if (xmlAddID(ctxt, doc, value, attr) == NULL) |
| 3201 | ret = 0; |
| 3202 | } |
| 3203 | |
| 3204 | if ((attrDecl->atype == XML_ATTRIBUTE_IDREF) || |
| 3205 | (attrDecl->atype == XML_ATTRIBUTE_IDREFS)) { |
| 3206 | if (xmlAddRef(ctxt, doc, value, attr) == NULL) |
| 3207 | ret = 0; |
| 3208 | } |
| 3209 | |
| 3210 | /* Validity Constraint: Notation Attributes */ |
| 3211 | if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) { |
| 3212 | xmlEnumerationPtr tree = attrDecl->tree; |
| 3213 | xmlNotationPtr nota; |
| 3214 | |
| 3215 | /* First check that the given NOTATION was declared */ |
| 3216 | nota = xmlGetDtdNotationDesc(doc->intSubset, value); |
| 3217 | if (nota == NULL) |
| 3218 | nota = xmlGetDtdNotationDesc(doc->extSubset, value); |
| 3219 | |
| 3220 | if (nota == NULL) { |
| 3221 | VERROR(ctxt->userData, |
| 3222 | "Value \"%s\" for attribute %s on %s is not a declared Notation\n", |
| 3223 | value, attr->name, elem->name); |
| 3224 | ret = 0; |
| 3225 | } |
| 3226 | |
| 3227 | /* Second, verify that it's among the list */ |
| 3228 | while (tree != NULL) { |
| 3229 | if (xmlStrEqual(tree->name, value)) break; |
| 3230 | tree = tree->next; |
| 3231 | } |
| 3232 | if (tree == NULL) { |
| 3233 | VERROR(ctxt->userData, |
| 3234 | "Value \"%s\" for attribute %s on %s is not among the enumerated notations\n", |
| 3235 | value, attr->name, elem->name); |
| 3236 | ret = 0; |
| 3237 | } |
| 3238 | } |
| 3239 | |
| 3240 | /* Validity Constraint: Enumeration */ |
| 3241 | if (attrDecl->atype == XML_ATTRIBUTE_ENUMERATION) { |
| 3242 | xmlEnumerationPtr tree = attrDecl->tree; |
| 3243 | while (tree != NULL) { |
| 3244 | if (xmlStrEqual(tree->name, value)) break; |
| 3245 | tree = tree->next; |
| 3246 | } |
| 3247 | if (tree == NULL) { |
| 3248 | VERROR(ctxt->userData, |
| 3249 | "Value \"%s\" for attribute %s on %s is not among the enumerated set\n", |
| 3250 | value, attr->name, elem->name); |
| 3251 | ret = 0; |
| 3252 | } |
| 3253 | } |
| 3254 | |
| 3255 | /* Fixed Attribute Default */ |
| 3256 | if ((attrDecl->def == XML_ATTRIBUTE_FIXED) && |
| 3257 | (!xmlStrEqual(attrDecl->defaultValue, value))) { |
| 3258 | VERROR(ctxt->userData, |
| 3259 | "Value for attribute %s on %s must be \"%s\"\n", |
| 3260 | attr->name, elem->name, attrDecl->defaultValue); |
| 3261 | ret = 0; |
| 3262 | } |
| 3263 | |
| 3264 | /* Extra check for the attribute value */ |
| 3265 | ret &= xmlValidateAttributeValue2(ctxt, doc, attr->name, |
| 3266 | attrDecl->atype, value); |
| 3267 | |
| 3268 | return(ret); |
| 3269 | } |
| 3270 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3271 | /** |
| 3272 | * xmlValidateSkipIgnorable: |
| 3273 | * @ctxt: the validation context |
| 3274 | * @child: the child list |
| 3275 | * |
| 3276 | * Skip ignorable elements w.r.t. the validation process |
| 3277 | * |
| 3278 | * returns the first element to consider for validation of the content model |
| 3279 | */ |
| 3280 | |
| 3281 | static xmlNodePtr |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3282 | xmlValidateSkipIgnorable(xmlNodePtr child) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3283 | while (child != NULL) { |
| 3284 | switch (child->type) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3285 | /* These things are ignored (skipped) during validation. */ |
| 3286 | case XML_PI_NODE: |
| 3287 | case XML_COMMENT_NODE: |
| 3288 | case XML_XINCLUDE_START: |
| 3289 | case XML_XINCLUDE_END: |
| 3290 | child = child->next; |
| 3291 | break; |
| 3292 | case XML_TEXT_NODE: |
| 3293 | if (xmlIsBlankNode(child)) |
| 3294 | child = child->next; |
| 3295 | else |
| 3296 | return(child); |
| 3297 | break; |
| 3298 | /* keep current node */ |
| 3299 | default: |
| 3300 | return(child); |
| 3301 | } |
| 3302 | } |
| 3303 | return(child); |
| 3304 | } |
| 3305 | |
| 3306 | /** |
| 3307 | * xmlValidateElementType: |
| 3308 | * @ctxt: the validation context |
| 3309 | * |
| 3310 | * Try to validate the content model of an element internal function |
| 3311 | * |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3312 | * returns 1 if valid or 0 ,-1 in case of error, -2 if an entity |
| 3313 | * reference is found and -3 if the validation succeeded but |
| 3314 | * the content model is not determinist. |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3315 | */ |
| 3316 | |
| 3317 | static int |
| 3318 | xmlValidateElementType(xmlValidCtxtPtr ctxt) { |
| 3319 | int ret = -1; |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3320 | int determinist = 1; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3321 | |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3322 | NODE = xmlValidateSkipIgnorable(NODE); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3323 | if ((NODE == NULL) && (CONT == NULL)) |
| 3324 | return(1); |
| 3325 | if ((NODE == NULL) && |
| 3326 | ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) || |
| 3327 | (CONT->ocur == XML_ELEMENT_CONTENT_OPT))) { |
| 3328 | return(1); |
| 3329 | } |
| 3330 | if (CONT == NULL) return(-1); |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3331 | if ((NODE != NULL) && (NODE->type == XML_ENTITY_REF_NODE)) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3332 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3333 | |
| 3334 | /* |
| 3335 | * We arrive here when more states need to be examined |
| 3336 | */ |
| 3337 | cont: |
| 3338 | |
| 3339 | /* |
| 3340 | * We just recovered from a rollback generated by a possible |
| 3341 | * epsilon transition, go directly to the analysis phase |
| 3342 | */ |
| 3343 | if (STATE == ROLLBACK_PARENT) { |
| 3344 | DEBUG_VALID_MSG("restaured parent branch"); |
| 3345 | DEBUG_VALID_STATE(NODE, CONT) |
| 3346 | ret = 1; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3347 | goto analyze; |
| 3348 | } |
| 3349 | |
| 3350 | DEBUG_VALID_STATE(NODE, CONT) |
| 3351 | /* |
| 3352 | * we may have to save a backup state here. This is the equivalent |
| 3353 | * of handling epsilon transition in NFAs. |
| 3354 | */ |
Daniel Veillard | e62d36c | 2001-05-15 08:53:16 +0000 | [diff] [blame] | 3355 | if ((CONT != NULL) && |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3356 | ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) || |
Daniel Veillard | ca1f172 | 2001-04-20 15:47:35 +0000 | [diff] [blame] | 3357 | (CONT->ocur == XML_ELEMENT_CONTENT_OPT) || |
| 3358 | ((CONT->ocur == XML_ELEMENT_CONTENT_PLUS) && (OCCURENCE)))) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3359 | DEBUG_VALID_MSG("saving parent branch"); |
| 3360 | vstateVPush(ctxt, CONT, NODE, DEPTH, OCCURS, ROLLBACK_PARENT); |
| 3361 | } |
| 3362 | |
| 3363 | |
| 3364 | /* |
| 3365 | * Check first if the content matches |
| 3366 | */ |
| 3367 | switch (CONT->type) { |
| 3368 | case XML_ELEMENT_CONTENT_PCDATA: |
| 3369 | if (NODE == NULL) { |
| 3370 | DEBUG_VALID_MSG("pcdata failed no node"); |
| 3371 | ret = 0; |
| 3372 | break; |
| 3373 | } |
| 3374 | if (NODE->type == XML_TEXT_NODE) { |
| 3375 | DEBUG_VALID_MSG("pcdata found, skip to next"); |
| 3376 | /* |
| 3377 | * go to next element in the content model |
| 3378 | * skipping ignorable elems |
| 3379 | */ |
| 3380 | do { |
| 3381 | NODE = NODE->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3382 | NODE = xmlValidateSkipIgnorable(NODE); |
| 3383 | if ((NODE != NULL) && |
| 3384 | (NODE->type == XML_ENTITY_REF_NODE)) |
| 3385 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3386 | } while ((NODE != NULL) && |
| 3387 | ((NODE->type != XML_ELEMENT_NODE) && |
| 3388 | (NODE->type != XML_TEXT_NODE))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3389 | ret = 1; |
| 3390 | break; |
| 3391 | } else { |
| 3392 | DEBUG_VALID_MSG("pcdata failed"); |
| 3393 | ret = 0; |
| 3394 | break; |
| 3395 | } |
| 3396 | break; |
| 3397 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 3398 | if (NODE == NULL) { |
| 3399 | DEBUG_VALID_MSG("element failed no node"); |
| 3400 | ret = 0; |
| 3401 | break; |
| 3402 | } |
Daniel Veillard | 8bdd220 | 2001-06-11 12:47:59 +0000 | [diff] [blame] | 3403 | ret = ((NODE->type == XML_ELEMENT_NODE) && |
| 3404 | (xmlStrEqual(NODE->name, CONT->name))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3405 | if (ret == 1) { |
| 3406 | DEBUG_VALID_MSG("element found, skip to next"); |
| 3407 | /* |
| 3408 | * go to next element in the content model |
| 3409 | * skipping ignorable elems |
| 3410 | */ |
| 3411 | do { |
| 3412 | NODE = NODE->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3413 | NODE = xmlValidateSkipIgnorable(NODE); |
| 3414 | if ((NODE != NULL) && |
| 3415 | (NODE->type == XML_ENTITY_REF_NODE)) |
| 3416 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3417 | } while ((NODE != NULL) && |
| 3418 | ((NODE->type != XML_ELEMENT_NODE) && |
| 3419 | (NODE->type != XML_TEXT_NODE))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3420 | } else { |
| 3421 | DEBUG_VALID_MSG("element failed"); |
| 3422 | ret = 0; |
| 3423 | break; |
| 3424 | } |
| 3425 | break; |
| 3426 | case XML_ELEMENT_CONTENT_OR: |
| 3427 | /* |
Daniel Veillard | 8534905 | 2001-04-20 13:48:21 +0000 | [diff] [blame] | 3428 | * Small optimization. |
| 3429 | */ |
| 3430 | if (CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3431 | if ((NODE == NULL) || |
| 3432 | (!xmlStrEqual(NODE->name, CONT->c1->name))) { |
| 3433 | DEPTH++; |
| 3434 | CONT = CONT->c2; |
| 3435 | goto cont; |
| 3436 | } |
| 3437 | } |
| 3438 | |
| 3439 | /* |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3440 | * save the second branch 'or' branch |
| 3441 | */ |
| 3442 | DEBUG_VALID_MSG("saving 'or' branch"); |
| 3443 | vstateVPush(ctxt, CONT->c2, NODE, DEPTH + 1, OCCURS, ROLLBACK_OR); |
| 3444 | |
| 3445 | DEPTH++; |
| 3446 | CONT = CONT->c1; |
| 3447 | goto cont; |
| 3448 | case XML_ELEMENT_CONTENT_SEQ: |
Daniel Veillard | 1d04767 | 2001-06-09 16:41:01 +0000 | [diff] [blame] | 3449 | /* |
| 3450 | * Small optimization. |
| 3451 | */ |
| 3452 | if ((CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) && |
| 3453 | ((CONT->c1->ocur == XML_ELEMENT_CONTENT_OPT) || |
| 3454 | (CONT->c1->ocur == XML_ELEMENT_CONTENT_MULT))) { |
| 3455 | if ((NODE == NULL) || |
| 3456 | (!xmlStrEqual(NODE->name, CONT->c1->name))) { |
| 3457 | DEPTH++; |
| 3458 | CONT = CONT->c2; |
| 3459 | goto cont; |
| 3460 | } |
| 3461 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3462 | DEPTH++; |
| 3463 | CONT = CONT->c1; |
| 3464 | goto cont; |
| 3465 | } |
| 3466 | |
| 3467 | /* |
| 3468 | * At this point handle going up in the tree |
| 3469 | */ |
| 3470 | if (ret == -1) { |
| 3471 | DEBUG_VALID_MSG("error found returning"); |
| 3472 | return(ret); |
| 3473 | } |
| 3474 | analyze: |
| 3475 | while (CONT != NULL) { |
| 3476 | /* |
| 3477 | * First do the analysis depending on the occurence model at |
| 3478 | * this level. |
| 3479 | */ |
| 3480 | if (ret == 0) { |
| 3481 | switch (CONT->ocur) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3482 | xmlNodePtr cur; |
| 3483 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3484 | case XML_ELEMENT_CONTENT_ONCE: |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3485 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3486 | DEBUG_VALID_MSG("Once branch failed, rollback"); |
| 3487 | if (vstateVPop(ctxt) < 0 ) { |
| 3488 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3489 | return(0); |
| 3490 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3491 | if (cur != ctxt->vstate->node) |
| 3492 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3493 | goto cont; |
| 3494 | case XML_ELEMENT_CONTENT_PLUS: |
| 3495 | if (OCCURENCE == 0) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3496 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3497 | DEBUG_VALID_MSG("Plus branch failed, rollback"); |
| 3498 | if (vstateVPop(ctxt) < 0 ) { |
| 3499 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3500 | return(0); |
| 3501 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3502 | if (cur != ctxt->vstate->node) |
| 3503 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3504 | goto cont; |
| 3505 | } |
| 3506 | DEBUG_VALID_MSG("Plus branch found"); |
| 3507 | ret = 1; |
| 3508 | break; |
| 3509 | case XML_ELEMENT_CONTENT_MULT: |
| 3510 | #ifdef DEBUG_VALID_ALGO |
| 3511 | if (OCCURENCE == 0) { |
| 3512 | DEBUG_VALID_MSG("Mult branch failed"); |
| 3513 | } else { |
| 3514 | DEBUG_VALID_MSG("Mult branch found"); |
| 3515 | } |
| 3516 | #endif |
| 3517 | ret = 1; |
| 3518 | break; |
| 3519 | case XML_ELEMENT_CONTENT_OPT: |
| 3520 | DEBUG_VALID_MSG("Option branch failed"); |
| 3521 | ret = 1; |
| 3522 | break; |
| 3523 | } |
| 3524 | } else { |
| 3525 | switch (CONT->ocur) { |
| 3526 | case XML_ELEMENT_CONTENT_OPT: |
| 3527 | DEBUG_VALID_MSG("Option branch succeeded"); |
| 3528 | ret = 1; |
| 3529 | break; |
| 3530 | case XML_ELEMENT_CONTENT_ONCE: |
| 3531 | DEBUG_VALID_MSG("Once branch succeeded"); |
| 3532 | ret = 1; |
| 3533 | break; |
| 3534 | case XML_ELEMENT_CONTENT_PLUS: |
| 3535 | if (STATE == ROLLBACK_PARENT) { |
| 3536 | DEBUG_VALID_MSG("Plus branch rollback"); |
| 3537 | ret = 1; |
| 3538 | break; |
| 3539 | } |
| 3540 | if (NODE == NULL) { |
| 3541 | DEBUG_VALID_MSG("Plus branch exhausted"); |
| 3542 | ret = 1; |
| 3543 | break; |
| 3544 | } |
| 3545 | DEBUG_VALID_MSG("Plus branch succeeded, continuing"); |
| 3546 | SET_OCCURENCE; |
| 3547 | goto cont; |
| 3548 | case XML_ELEMENT_CONTENT_MULT: |
| 3549 | if (STATE == ROLLBACK_PARENT) { |
| 3550 | DEBUG_VALID_MSG("Mult branch rollback"); |
| 3551 | ret = 1; |
| 3552 | break; |
| 3553 | } |
| 3554 | if (NODE == NULL) { |
| 3555 | DEBUG_VALID_MSG("Mult branch exhausted"); |
| 3556 | ret = 1; |
| 3557 | break; |
| 3558 | } |
| 3559 | DEBUG_VALID_MSG("Mult branch succeeded, continuing"); |
| 3560 | SET_OCCURENCE; |
| 3561 | goto cont; |
| 3562 | } |
| 3563 | } |
| 3564 | STATE = 0; |
| 3565 | |
| 3566 | /* |
| 3567 | * Then act accordingly at the parent level |
| 3568 | */ |
| 3569 | RESET_OCCURENCE; |
| 3570 | if (CONT->parent == NULL) |
| 3571 | break; |
| 3572 | |
| 3573 | switch (CONT->parent->type) { |
| 3574 | case XML_ELEMENT_CONTENT_PCDATA: |
| 3575 | DEBUG_VALID_MSG("Error: parent pcdata"); |
| 3576 | return(-1); |
| 3577 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 3578 | DEBUG_VALID_MSG("Error: parent element"); |
| 3579 | return(-1); |
| 3580 | case XML_ELEMENT_CONTENT_OR: |
| 3581 | if (ret == 1) { |
| 3582 | DEBUG_VALID_MSG("Or succeeded"); |
| 3583 | CONT = CONT->parent; |
| 3584 | DEPTH--; |
| 3585 | } else { |
| 3586 | DEBUG_VALID_MSG("Or failed"); |
| 3587 | CONT = CONT->parent; |
| 3588 | DEPTH--; |
| 3589 | } |
| 3590 | break; |
| 3591 | case XML_ELEMENT_CONTENT_SEQ: |
| 3592 | if (ret == 0) { |
| 3593 | DEBUG_VALID_MSG("Sequence failed"); |
| 3594 | CONT = CONT->parent; |
| 3595 | DEPTH--; |
| 3596 | } else if (CONT == CONT->parent->c1) { |
| 3597 | DEBUG_VALID_MSG("Sequence testing 2nd branch"); |
| 3598 | CONT = CONT->parent->c2; |
| 3599 | goto cont; |
| 3600 | } else { |
| 3601 | DEBUG_VALID_MSG("Sequence succeeded"); |
| 3602 | CONT = CONT->parent; |
| 3603 | DEPTH--; |
| 3604 | } |
| 3605 | } |
| 3606 | } |
| 3607 | if (NODE != NULL) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3608 | xmlNodePtr cur; |
| 3609 | |
| 3610 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3611 | DEBUG_VALID_MSG("Failed, remaining input, rollback"); |
| 3612 | if (vstateVPop(ctxt) < 0 ) { |
| 3613 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3614 | return(0); |
| 3615 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3616 | if (cur != ctxt->vstate->node) |
| 3617 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3618 | goto cont; |
| 3619 | } |
| 3620 | if (ret == 0) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3621 | xmlNodePtr cur; |
| 3622 | |
| 3623 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3624 | DEBUG_VALID_MSG("Failure, rollback"); |
| 3625 | if (vstateVPop(ctxt) < 0 ) { |
| 3626 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3627 | return(0); |
| 3628 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3629 | if (cur != ctxt->vstate->node) |
| 3630 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3631 | goto cont; |
| 3632 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3633 | return(determinist); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3634 | } |
| 3635 | |
| 3636 | /** |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3637 | * xmlSprintfElements: |
| 3638 | * @buf: an output buffer |
| 3639 | * @content: An element |
| 3640 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 3641 | * |
| 3642 | * This will dump the list of elements to the buffer |
| 3643 | * Intended just for the debug routine |
| 3644 | */ |
| 3645 | static void |
| 3646 | xmlSprintfElements(char *buf, xmlNodePtr node, int glob) { |
| 3647 | xmlNodePtr cur; |
| 3648 | |
| 3649 | if (node == NULL) return; |
| 3650 | if (glob) strcat(buf, "("); |
| 3651 | cur = node; |
| 3652 | while (cur != NULL) { |
| 3653 | switch (cur->type) { |
| 3654 | case XML_ELEMENT_NODE: |
| 3655 | strcat(buf, (char *) cur->name); |
| 3656 | if (cur->next != NULL) |
| 3657 | strcat(buf, " "); |
| 3658 | break; |
| 3659 | case XML_TEXT_NODE: |
| 3660 | if (xmlIsBlankNode(cur)) |
| 3661 | break; |
| 3662 | case XML_CDATA_SECTION_NODE: |
| 3663 | case XML_ENTITY_REF_NODE: |
| 3664 | strcat(buf, "CDATA"); |
| 3665 | if (cur->next != NULL) |
| 3666 | strcat(buf, " "); |
| 3667 | break; |
| 3668 | case XML_ATTRIBUTE_NODE: |
| 3669 | case XML_DOCUMENT_NODE: |
Daniel Veillard | eae522a | 2001-04-23 13:41:34 +0000 | [diff] [blame] | 3670 | #ifdef LIBXML_DOCB_ENABLED |
| 3671 | case XML_DOCB_DOCUMENT_NODE: |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3672 | #endif |
| 3673 | case XML_HTML_DOCUMENT_NODE: |
| 3674 | case XML_DOCUMENT_TYPE_NODE: |
| 3675 | case XML_DOCUMENT_FRAG_NODE: |
| 3676 | case XML_NOTATION_NODE: |
| 3677 | case XML_NAMESPACE_DECL: |
| 3678 | strcat(buf, "???"); |
| 3679 | if (cur->next != NULL) |
| 3680 | strcat(buf, " "); |
| 3681 | break; |
| 3682 | case XML_ENTITY_NODE: |
| 3683 | case XML_PI_NODE: |
| 3684 | case XML_DTD_NODE: |
| 3685 | case XML_COMMENT_NODE: |
| 3686 | case XML_ELEMENT_DECL: |
| 3687 | case XML_ATTRIBUTE_DECL: |
| 3688 | case XML_ENTITY_DECL: |
| 3689 | case XML_XINCLUDE_START: |
| 3690 | case XML_XINCLUDE_END: |
| 3691 | break; |
| 3692 | } |
| 3693 | cur = cur->next; |
| 3694 | } |
| 3695 | if (glob) strcat(buf, ")"); |
| 3696 | } |
| 3697 | |
| 3698 | /** |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3699 | * xmlValidateElementContent: |
| 3700 | * @ctxt: the validation context |
| 3701 | * @child: the child list |
| 3702 | * @cont: pointer to the content declaration |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3703 | * @warn: emit the error message |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3704 | * |
| 3705 | * Try to validate the content model of an element |
| 3706 | * |
| 3707 | * returns 1 if valid or 0 if not and -1 in case of error |
| 3708 | */ |
| 3709 | |
| 3710 | static int |
| 3711 | xmlValidateElementContent(xmlValidCtxtPtr ctxt, xmlNodePtr child, |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3712 | xmlElementContentPtr cont, int warn, const xmlChar *name) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3713 | int ret; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3714 | xmlNodePtr repl = NULL, last = NULL, cur, tmp; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3715 | |
| 3716 | /* |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3717 | * Allocate the stack |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3718 | */ |
| 3719 | ctxt->vstateMax = 8; |
| 3720 | ctxt->vstateTab = (xmlValidState *) xmlMalloc( |
| 3721 | ctxt->vstateMax * sizeof(ctxt->vstateTab[0])); |
| 3722 | if (ctxt->vstateTab == NULL) { |
| 3723 | xmlGenericError(xmlGenericErrorContext, |
| 3724 | "malloc failed !n"); |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3725 | return(-1); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3726 | } |
| 3727 | /* |
| 3728 | * The first entry in the stack is reserved to the current state |
| 3729 | */ |
Daniel Veillard | a9142e7 | 2001-06-19 11:07:54 +0000 | [diff] [blame] | 3730 | ctxt->nodeMax = 0; |
| 3731 | ctxt->nodeNr = 0; |
Daniel Veillard | 61b33d5 | 2001-04-24 13:55:12 +0000 | [diff] [blame] | 3732 | ctxt->nodeTab = NULL; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3733 | ctxt->vstate = &ctxt->vstateTab[0]; |
| 3734 | ctxt->vstateNr = 1; |
| 3735 | CONT = cont; |
| 3736 | NODE = child; |
| 3737 | DEPTH = 0; |
| 3738 | OCCURS = 0; |
| 3739 | STATE = 0; |
| 3740 | ret = xmlValidateElementType(ctxt); |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3741 | if ((ret == -3) && (warn)) { |
| 3742 | VWARNING(ctxt->userData, |
| 3743 | "Element %s content model is ambiguous\n", name); |
| 3744 | } else if (ret == -2) { |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3745 | /* |
| 3746 | * An entities reference appeared at this level. |
| 3747 | * Buid a minimal representation of this node content |
| 3748 | * sufficient to run the validation process on it |
| 3749 | */ |
| 3750 | DEBUG_VALID_MSG("Found an entity reference, linearizing"); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3751 | cur = child; |
| 3752 | while (cur != NULL) { |
| 3753 | switch (cur->type) { |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3754 | case XML_ENTITY_REF_NODE: |
| 3755 | /* |
| 3756 | * Push the current node to be able to roll back |
| 3757 | * and process within the entity |
| 3758 | */ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3759 | if ((cur->children != NULL) && |
| 3760 | (cur->children->children != NULL)) { |
| 3761 | nodeVPush(ctxt, cur); |
| 3762 | cur = cur->children->children; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3763 | continue; |
| 3764 | } |
Daniel Veillard | 64b98c0 | 2001-06-17 17:20:21 +0000 | [diff] [blame] | 3765 | break; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3766 | case XML_TEXT_NODE: |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3767 | case XML_CDATA_SECTION_NODE: |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3768 | if (xmlIsBlankNode(cur)) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3769 | break; |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3770 | /* no break on purpose */ |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3771 | case XML_ELEMENT_NODE: |
| 3772 | /* |
| 3773 | * Allocate a new node and minimally fills in |
| 3774 | * what's required |
| 3775 | */ |
| 3776 | tmp = (xmlNodePtr) xmlMalloc(sizeof(xmlNode)); |
| 3777 | if (tmp == NULL) { |
| 3778 | xmlGenericError(xmlGenericErrorContext, |
| 3779 | "xmlValidateElementContent : malloc failed\n"); |
| 3780 | xmlFreeNodeList(repl); |
| 3781 | ret = -1; |
| 3782 | goto done; |
| 3783 | } |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3784 | tmp->type = cur->type; |
| 3785 | tmp->name = cur->name; |
| 3786 | tmp->ns = cur->ns; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3787 | tmp->next = NULL; |
| 3788 | if (repl == NULL) |
| 3789 | repl = last = tmp; |
| 3790 | else { |
| 3791 | last->next = tmp; |
| 3792 | last = tmp; |
| 3793 | } |
| 3794 | break; |
| 3795 | default: |
| 3796 | break; |
| 3797 | } |
| 3798 | /* |
| 3799 | * Switch to next element |
| 3800 | */ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3801 | cur = cur->next; |
| 3802 | while (cur == NULL) { |
| 3803 | cur = nodeVPop(ctxt); |
| 3804 | if (cur == NULL) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3805 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3806 | cur = cur->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3807 | } |
| 3808 | } |
| 3809 | |
| 3810 | /* |
| 3811 | * Relaunch the validation |
| 3812 | */ |
| 3813 | ctxt->vstate = &ctxt->vstateTab[0]; |
| 3814 | ctxt->vstateNr = 1; |
| 3815 | CONT = cont; |
| 3816 | NODE = repl; |
| 3817 | DEPTH = 0; |
| 3818 | OCCURS = 0; |
| 3819 | STATE = 0; |
| 3820 | ret = xmlValidateElementType(ctxt); |
| 3821 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3822 | if ((warn) && ((ret != 1) && (ret != -3))) { |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3823 | char expr[5000]; |
| 3824 | char list[5000]; |
| 3825 | |
| 3826 | expr[0] = 0; |
| 3827 | xmlSprintfElementContent(expr, cont, 1); |
| 3828 | list[0] = 0; |
| 3829 | if (repl != NULL) |
| 3830 | xmlSprintfElements(list, repl, 1); |
| 3831 | else |
| 3832 | xmlSprintfElements(list, child, 1); |
| 3833 | |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3834 | if (name != NULL) { |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3835 | VERROR(ctxt->userData, |
| 3836 | "Element %s content doesn't follow the Dtd\nExpecting %s, got %s\n", |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3837 | name, expr, list); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3838 | } else { |
| 3839 | VERROR(ctxt->userData, |
| 3840 | "Element content doesn't follow the Dtd\nExpecting %s, got %s\n", |
| 3841 | expr, list); |
| 3842 | } |
| 3843 | ret = 0; |
| 3844 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3845 | if (ret == -3) |
| 3846 | ret = 1; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3847 | |
| 3848 | |
| 3849 | done: |
| 3850 | /* |
| 3851 | * Deallocate the copy if done, and free up the validation stack |
| 3852 | */ |
| 3853 | while (repl != NULL) { |
| 3854 | tmp = repl->next; |
| 3855 | xmlFree(repl); |
| 3856 | repl = tmp; |
| 3857 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3858 | ctxt->vstateMax = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3859 | if (ctxt->vstateTab != NULL) { |
| 3860 | xmlFree(ctxt->vstateTab); |
| 3861 | ctxt->vstateTab = NULL; |
| 3862 | } |
| 3863 | ctxt->nodeMax = 0; |
Daniel Veillard | a9142e7 | 2001-06-19 11:07:54 +0000 | [diff] [blame] | 3864 | ctxt->nodeNr = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3865 | if (ctxt->nodeTab != NULL) { |
| 3866 | xmlFree(ctxt->nodeTab); |
| 3867 | ctxt->nodeTab = NULL; |
| 3868 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3869 | return(ret); |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3870 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3871 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3872 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3873 | /** |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3874 | * xmlValidateCdataElement: |
| 3875 | * @ctxt: the validation context |
| 3876 | * @doc: a document instance |
| 3877 | * @elem: an element instance |
| 3878 | * |
| 3879 | * Check that an element follows #CDATA |
| 3880 | * |
| 3881 | * returns 1 if valid or 0 otherwise |
| 3882 | */ |
| 3883 | static int |
| 3884 | xmlValidateOneCdataElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3885 | xmlNodePtr elem) { |
| 3886 | int ret = 1; |
| 3887 | xmlNodePtr cur, child; |
| 3888 | |
| 3889 | if ((ctxt == NULL) || (doc == NULL) | (elem == NULL)) |
| 3890 | return(0); |
| 3891 | |
| 3892 | child = elem->children; |
| 3893 | |
| 3894 | cur = child; |
| 3895 | while (cur != NULL) { |
| 3896 | switch (cur->type) { |
| 3897 | case XML_ENTITY_REF_NODE: |
| 3898 | /* |
| 3899 | * Push the current node to be able to roll back |
| 3900 | * and process within the entity |
| 3901 | */ |
| 3902 | if ((cur->children != NULL) && |
| 3903 | (cur->children->children != NULL)) { |
| 3904 | nodeVPush(ctxt, cur); |
| 3905 | cur = cur->children->children; |
| 3906 | continue; |
| 3907 | } |
| 3908 | break; |
| 3909 | case XML_COMMENT_NODE: |
| 3910 | case XML_PI_NODE: |
| 3911 | case XML_TEXT_NODE: |
| 3912 | case XML_CDATA_SECTION_NODE: |
| 3913 | break; |
| 3914 | default: |
| 3915 | ret = 0; |
| 3916 | goto done; |
| 3917 | } |
| 3918 | /* |
| 3919 | * Switch to next element |
| 3920 | */ |
| 3921 | cur = cur->next; |
| 3922 | while (cur == NULL) { |
| 3923 | cur = nodeVPop(ctxt); |
| 3924 | if (cur == NULL) |
| 3925 | break; |
| 3926 | cur = cur->next; |
| 3927 | } |
| 3928 | } |
| 3929 | done: |
| 3930 | ctxt->nodeMax = 0; |
| 3931 | ctxt->nodeNr = 0; |
| 3932 | if (ctxt->nodeTab != NULL) { |
| 3933 | xmlFree(ctxt->nodeTab); |
| 3934 | ctxt->nodeTab = NULL; |
| 3935 | } |
| 3936 | return(ret); |
| 3937 | } |
| 3938 | |
| 3939 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3940 | * xmlValidateOneElement: |
| 3941 | * @ctxt: the validation context |
| 3942 | * @doc: a document instance |
| 3943 | * @elem: an element instance |
| 3944 | * |
| 3945 | * Try to validate a single element and it's attributes, |
| 3946 | * basically it does the following checks as described by the |
| 3947 | * XML-1.0 recommendation: |
| 3948 | * - [ VC: Element Valid ] |
| 3949 | * - [ VC: Required Attribute ] |
| 3950 | * Then call xmlValidateOneAttribute() for each attribute present. |
| 3951 | * |
| 3952 | * The ID/IDREF checkings are done separately |
| 3953 | * |
| 3954 | * returns 1 if valid or 0 otherwise |
| 3955 | */ |
| 3956 | |
| 3957 | int |
| 3958 | xmlValidateOneElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3959 | xmlNodePtr elem) { |
| 3960 | xmlElementPtr elemDecl = NULL; |
| 3961 | xmlElementContentPtr cont; |
| 3962 | xmlAttributePtr attr; |
| 3963 | xmlNodePtr child; |
| 3964 | int ret = 1; |
| 3965 | const xmlChar *name; |
| 3966 | |
| 3967 | CHECK_DTD; |
| 3968 | |
| 3969 | if (elem == NULL) return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3970 | switch (elem->type) { |
| 3971 | case XML_ATTRIBUTE_NODE: |
| 3972 | VERROR(ctxt->userData, |
| 3973 | "Attribute element not expected here\n"); |
| 3974 | return(0); |
| 3975 | case XML_TEXT_NODE: |
| 3976 | if (elem->children != NULL) { |
| 3977 | VERROR(ctxt->userData, "Text element has childs !\n"); |
| 3978 | return(0); |
| 3979 | } |
| 3980 | if (elem->properties != NULL) { |
| 3981 | VERROR(ctxt->userData, "Text element has attributes !\n"); |
| 3982 | return(0); |
| 3983 | } |
| 3984 | if (elem->ns != NULL) { |
| 3985 | VERROR(ctxt->userData, "Text element has namespace !\n"); |
| 3986 | return(0); |
| 3987 | } |
| 3988 | if (elem->nsDef != NULL) { |
| 3989 | VERROR(ctxt->userData, |
| 3990 | "Text element carries namespace definitions !\n"); |
| 3991 | return(0); |
| 3992 | } |
| 3993 | if (elem->content == NULL) { |
| 3994 | VERROR(ctxt->userData, |
| 3995 | "Text element has no content !\n"); |
| 3996 | return(0); |
| 3997 | } |
| 3998 | return(1); |
| 3999 | case XML_XINCLUDE_START: |
| 4000 | case XML_XINCLUDE_END: |
| 4001 | return(1); |
| 4002 | case XML_CDATA_SECTION_NODE: |
| 4003 | case XML_ENTITY_REF_NODE: |
| 4004 | case XML_PI_NODE: |
| 4005 | case XML_COMMENT_NODE: |
| 4006 | return(1); |
| 4007 | case XML_ENTITY_NODE: |
| 4008 | VERROR(ctxt->userData, |
| 4009 | "Entity element not expected here\n"); |
| 4010 | return(0); |
| 4011 | case XML_NOTATION_NODE: |
| 4012 | VERROR(ctxt->userData, |
| 4013 | "Notation element not expected here\n"); |
| 4014 | return(0); |
| 4015 | case XML_DOCUMENT_NODE: |
| 4016 | case XML_DOCUMENT_TYPE_NODE: |
| 4017 | case XML_DOCUMENT_FRAG_NODE: |
| 4018 | VERROR(ctxt->userData, |
| 4019 | "Document element not expected here\n"); |
| 4020 | return(0); |
| 4021 | case XML_HTML_DOCUMENT_NODE: |
| 4022 | VERROR(ctxt->userData, |
| 4023 | "\n"); |
| 4024 | return(0); |
| 4025 | case XML_ELEMENT_NODE: |
| 4026 | break; |
| 4027 | default: |
| 4028 | VERROR(ctxt->userData, |
| 4029 | "unknown element type %d\n", elem->type); |
| 4030 | return(0); |
| 4031 | } |
| 4032 | if (elem->name == NULL) return(0); |
| 4033 | |
| 4034 | /* |
| 4035 | * Fetch the declaration for the qualified name |
| 4036 | */ |
| 4037 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 4038 | elemDecl = xmlGetDtdQElementDesc(doc->intSubset, |
| 4039 | elem->name, elem->ns->prefix); |
| 4040 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 4041 | elemDecl = xmlGetDtdQElementDesc(doc->extSubset, |
| 4042 | elem->name, elem->ns->prefix); |
| 4043 | } |
| 4044 | |
| 4045 | /* |
| 4046 | * Fetch the declaration for the non qualified name |
| 4047 | */ |
| 4048 | if (elemDecl == NULL) { |
| 4049 | elemDecl = xmlGetDtdElementDesc(doc->intSubset, elem->name); |
| 4050 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 4051 | elemDecl = xmlGetDtdElementDesc(doc->extSubset, elem->name); |
| 4052 | } |
| 4053 | if (elemDecl == NULL) { |
| 4054 | VERROR(ctxt->userData, "No declaration for element %s\n", |
| 4055 | elem->name); |
| 4056 | return(0); |
| 4057 | } |
| 4058 | |
| 4059 | /* Check taht the element content matches the definition */ |
| 4060 | switch (elemDecl->etype) { |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 4061 | case XML_ELEMENT_TYPE_UNDEFINED: |
| 4062 | VERROR(ctxt->userData, "No declaration for element %s\n", |
| 4063 | elem->name); |
| 4064 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4065 | case XML_ELEMENT_TYPE_EMPTY: |
| 4066 | if (elem->children != NULL) { |
| 4067 | VERROR(ctxt->userData, |
| 4068 | "Element %s was declared EMPTY this one has content\n", |
| 4069 | elem->name); |
| 4070 | ret = 0; |
| 4071 | } |
| 4072 | break; |
| 4073 | case XML_ELEMENT_TYPE_ANY: |
| 4074 | /* I don't think anything is required then */ |
| 4075 | break; |
| 4076 | case XML_ELEMENT_TYPE_MIXED: |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 4077 | /* simple case of declared as #PCDATA */ |
| 4078 | if ((elemDecl->content != NULL) && |
| 4079 | (elemDecl->content->type == XML_ELEMENT_CONTENT_PCDATA)) { |
| 4080 | ret = xmlValidateOneCdataElement(ctxt, doc, elem); |
| 4081 | if (!ret) { |
| 4082 | VERROR(ctxt->userData, |
| 4083 | "Element %s was declared #PCDATA but contains non text nodes\n", |
| 4084 | elem->name); |
| 4085 | } |
| 4086 | break; |
| 4087 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4088 | child = elem->children; |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 4089 | /* Hum, this start to get messy */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4090 | while (child != NULL) { |
| 4091 | if (child->type == XML_ELEMENT_NODE) { |
| 4092 | name = child->name; |
| 4093 | if ((child->ns != NULL) && (child->ns->prefix != NULL)) { |
| 4094 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4095 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 4096 | child->ns->prefix, child->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4097 | qname[sizeof(qname) - 1] = 0; |
| 4098 | cont = elemDecl->content; |
| 4099 | while (cont != NULL) { |
| 4100 | if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 4101 | if (xmlStrEqual(cont->name, qname)) break; |
| 4102 | } else if ((cont->type == XML_ELEMENT_CONTENT_OR) && |
| 4103 | (cont->c1 != NULL) && |
| 4104 | (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)){ |
| 4105 | if (xmlStrEqual(cont->c1->name, qname)) break; |
| 4106 | } else if ((cont->type != XML_ELEMENT_CONTENT_OR) || |
| 4107 | (cont->c1 == NULL) || |
| 4108 | (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)){ |
| 4109 | /* Internal error !!! */ |
| 4110 | xmlGenericError(xmlGenericErrorContext, |
| 4111 | "Internal: MIXED struct bad\n"); |
| 4112 | break; |
| 4113 | } |
| 4114 | cont = cont->c2; |
| 4115 | } |
| 4116 | if (cont != NULL) |
| 4117 | goto child_ok; |
| 4118 | } |
| 4119 | cont = elemDecl->content; |
| 4120 | while (cont != NULL) { |
| 4121 | if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 4122 | if (xmlStrEqual(cont->name, name)) break; |
| 4123 | } else if ((cont->type == XML_ELEMENT_CONTENT_OR) && |
| 4124 | (cont->c1 != NULL) && |
| 4125 | (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)) { |
| 4126 | if (xmlStrEqual(cont->c1->name, name)) break; |
| 4127 | } else if ((cont->type != XML_ELEMENT_CONTENT_OR) || |
| 4128 | (cont->c1 == NULL) || |
| 4129 | (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)) { |
| 4130 | /* Internal error !!! */ |
| 4131 | xmlGenericError(xmlGenericErrorContext, |
| 4132 | "Internal: MIXED struct bad\n"); |
| 4133 | break; |
| 4134 | } |
| 4135 | cont = cont->c2; |
| 4136 | } |
| 4137 | if (cont == NULL) { |
| 4138 | VERROR(ctxt->userData, |
| 4139 | "Element %s is not declared in %s list of possible childs\n", |
| 4140 | name, elem->name); |
| 4141 | ret = 0; |
| 4142 | } |
| 4143 | } |
| 4144 | child_ok: |
| 4145 | child = child->next; |
| 4146 | } |
| 4147 | break; |
| 4148 | case XML_ELEMENT_TYPE_ELEMENT: |
| 4149 | child = elem->children; |
| 4150 | cont = elemDecl->content; |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 4151 | ret = xmlValidateElementContent(ctxt, child, cont, 1, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4152 | break; |
| 4153 | } |
| 4154 | |
| 4155 | /* [ VC: Required Attribute ] */ |
| 4156 | attr = elemDecl->attributes; |
| 4157 | while (attr != NULL) { |
| 4158 | if (attr->def == XML_ATTRIBUTE_REQUIRED) { |
| 4159 | xmlAttrPtr attrib; |
| 4160 | int qualified = -1; |
| 4161 | |
| 4162 | attrib = elem->properties; |
| 4163 | while (attrib != NULL) { |
| 4164 | if (xmlStrEqual(attrib->name, attr->name)) { |
| 4165 | if (attr->prefix != NULL) { |
| 4166 | xmlNsPtr nameSpace = attrib->ns; |
| 4167 | |
| 4168 | if (nameSpace == NULL) |
| 4169 | nameSpace = elem->ns; |
| 4170 | /* |
| 4171 | * qualified names handling is problematic, having a |
| 4172 | * different prefix should be possible but DTDs don't |
| 4173 | * allow to define the URI instead of the prefix :-( |
| 4174 | */ |
| 4175 | if (nameSpace == NULL) { |
| 4176 | if (qualified < 0) |
| 4177 | qualified = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 4178 | } else if (!xmlStrEqual(nameSpace->prefix, |
| 4179 | attr->prefix)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4180 | if (qualified < 1) |
| 4181 | qualified = 1; |
| 4182 | } else |
| 4183 | goto found; |
| 4184 | } else { |
| 4185 | /* |
| 4186 | * We should allow applications to define namespaces |
| 4187 | * for their application even if the DTD doesn't |
| 4188 | * carry one, otherwise, basically we would always |
| 4189 | * break. |
| 4190 | */ |
| 4191 | goto found; |
| 4192 | } |
| 4193 | } |
| 4194 | attrib = attrib->next; |
| 4195 | } |
| 4196 | if (qualified == -1) { |
| 4197 | if (attr->prefix == NULL) { |
| 4198 | VERROR(ctxt->userData, |
| 4199 | "Element %s doesn't carry attribute %s\n", |
| 4200 | elem->name, attr->name); |
| 4201 | ret = 0; |
| 4202 | } else { |
| 4203 | VERROR(ctxt->userData, |
| 4204 | "Element %s doesn't carry attribute %s:%s\n", |
| 4205 | elem->name, attr->prefix,attr->name); |
| 4206 | ret = 0; |
| 4207 | } |
| 4208 | } else if (qualified == 0) { |
| 4209 | VWARNING(ctxt->userData, |
| 4210 | "Element %s required attribute %s:%s has no prefix\n", |
| 4211 | elem->name, attr->prefix,attr->name); |
| 4212 | } else if (qualified == 1) { |
| 4213 | VWARNING(ctxt->userData, |
| 4214 | "Element %s required attribute %s:%s has different prefix\n", |
| 4215 | elem->name, attr->prefix,attr->name); |
| 4216 | } |
| 4217 | } |
| 4218 | found: |
| 4219 | attr = attr->nexth; |
| 4220 | } |
| 4221 | return(ret); |
| 4222 | } |
| 4223 | |
| 4224 | /** |
| 4225 | * xmlValidateRoot: |
| 4226 | * @ctxt: the validation context |
| 4227 | * @doc: a document instance |
| 4228 | * |
| 4229 | * Try to validate a the root element |
| 4230 | * basically it does the following check as described by the |
| 4231 | * XML-1.0 recommendation: |
| 4232 | * - [ VC: Root Element Type ] |
| 4233 | * it doesn't try to recurse or apply other check to the element |
| 4234 | * |
| 4235 | * returns 1 if valid or 0 otherwise |
| 4236 | */ |
| 4237 | |
| 4238 | int |
| 4239 | xmlValidateRoot(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4240 | xmlNodePtr root; |
| 4241 | if (doc == NULL) return(0); |
| 4242 | |
| 4243 | root = xmlDocGetRootElement(doc); |
| 4244 | if ((root == NULL) || (root->name == NULL)) { |
| 4245 | VERROR(ctxt->userData, "Not valid: no root element\n"); |
| 4246 | return(0); |
| 4247 | } |
| 4248 | |
| 4249 | /* |
| 4250 | * When doing post validation against a separate DTD, those may |
| 4251 | * no internal subset has been generated |
| 4252 | */ |
| 4253 | if ((doc->intSubset != NULL) && |
| 4254 | (doc->intSubset->name != NULL)) { |
| 4255 | /* |
| 4256 | * Check first the document root against the NQName |
| 4257 | */ |
| 4258 | if (!xmlStrEqual(doc->intSubset->name, root->name)) { |
| 4259 | if ((root->ns != NULL) && (root->ns->prefix != NULL)) { |
| 4260 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4261 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 4262 | root->ns->prefix, root->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4263 | qname[sizeof(qname) - 1] = 0; |
| 4264 | if (xmlStrEqual(doc->intSubset->name, qname)) |
| 4265 | goto name_ok; |
| 4266 | } |
| 4267 | if ((xmlStrEqual(doc->intSubset->name, BAD_CAST "HTML")) && |
| 4268 | (xmlStrEqual(root->name, BAD_CAST "html"))) |
| 4269 | goto name_ok; |
| 4270 | VERROR(ctxt->userData, |
| 4271 | "Not valid: root and DtD name do not match '%s' and '%s'\n", |
| 4272 | root->name, doc->intSubset->name); |
| 4273 | return(0); |
| 4274 | |
| 4275 | } |
| 4276 | } |
| 4277 | name_ok: |
| 4278 | return(1); |
| 4279 | } |
| 4280 | |
| 4281 | |
| 4282 | /** |
| 4283 | * xmlValidateElement: |
| 4284 | * @ctxt: the validation context |
| 4285 | * @doc: a document instance |
| 4286 | * @elem: an element instance |
| 4287 | * |
| 4288 | * Try to validate the subtree under an element |
| 4289 | * |
| 4290 | * returns 1 if valid or 0 otherwise |
| 4291 | */ |
| 4292 | |
| 4293 | int |
| 4294 | xmlValidateElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlNodePtr elem) { |
| 4295 | xmlNodePtr child; |
| 4296 | xmlAttrPtr attr; |
| 4297 | xmlChar *value; |
| 4298 | int ret = 1; |
| 4299 | |
| 4300 | if (elem == NULL) return(0); |
| 4301 | |
| 4302 | /* |
| 4303 | * XInclude elements were added after parsing in the infoset, |
| 4304 | * they don't really mean anything validation wise. |
| 4305 | */ |
| 4306 | if ((elem->type == XML_XINCLUDE_START) || |
| 4307 | (elem->type == XML_XINCLUDE_END)) |
| 4308 | return(1); |
| 4309 | |
| 4310 | CHECK_DTD; |
| 4311 | |
Daniel Veillard | 10ea86c | 2001-06-20 13:55:33 +0000 | [diff] [blame] | 4312 | /* |
| 4313 | * Entities references have to be handled separately |
| 4314 | */ |
| 4315 | if (elem->type == XML_ENTITY_REF_NODE) { |
| 4316 | return(1); |
| 4317 | } |
| 4318 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4319 | ret &= xmlValidateOneElement(ctxt, doc, elem); |
| 4320 | attr = elem->properties; |
| 4321 | while(attr != NULL) { |
| 4322 | value = xmlNodeListGetString(doc, attr->children, 0); |
| 4323 | ret &= xmlValidateOneAttribute(ctxt, doc, elem, attr, value); |
| 4324 | if (value != NULL) |
| 4325 | xmlFree(value); |
| 4326 | attr= attr->next; |
| 4327 | } |
| 4328 | child = elem->children; |
| 4329 | while (child != NULL) { |
| 4330 | ret &= xmlValidateElement(ctxt, doc, child); |
| 4331 | child = child->next; |
| 4332 | } |
| 4333 | |
| 4334 | return(ret); |
| 4335 | } |
| 4336 | |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4337 | /** |
| 4338 | * xmlValidateRef: |
| 4339 | * @ref: A reference to be validated |
| 4340 | * @ctxt: Validation context |
| 4341 | * @name: Name of ID we are searching for |
| 4342 | * |
| 4343 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4344 | static void |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4345 | xmlValidateRef(xmlRefPtr ref, xmlValidCtxtPtr ctxt, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4346 | const xmlChar *name) { |
| 4347 | xmlAttrPtr id; |
| 4348 | xmlAttrPtr attr; |
| 4349 | |
| 4350 | if (ref == NULL) |
| 4351 | return; |
| 4352 | attr = ref->attr; |
| 4353 | if (attr == NULL) |
| 4354 | return; |
| 4355 | if (attr->atype == XML_ATTRIBUTE_IDREF) { |
| 4356 | id = xmlGetID(ctxt->doc, name); |
| 4357 | if (id == NULL) { |
| 4358 | VERROR(ctxt->userData, |
| 4359 | "IDREF attribute %s reference an unknown ID \"%s\"\n", |
| 4360 | attr->name, name); |
| 4361 | ctxt->valid = 0; |
| 4362 | } |
| 4363 | } else if (attr->atype == XML_ATTRIBUTE_IDREFS) { |
| 4364 | xmlChar *dup, *str = NULL, *cur, save; |
| 4365 | |
| 4366 | dup = xmlStrdup(name); |
| 4367 | if (dup == NULL) { |
| 4368 | ctxt->valid = 0; |
| 4369 | return; |
| 4370 | } |
| 4371 | cur = dup; |
| 4372 | while (*cur != 0) { |
| 4373 | str = cur; |
| 4374 | while ((*cur != 0) && (!IS_BLANK(*cur))) cur++; |
| 4375 | save = *cur; |
| 4376 | *cur = 0; |
| 4377 | id = xmlGetID(ctxt->doc, str); |
| 4378 | if (id == NULL) { |
| 4379 | VERROR(ctxt->userData, |
| 4380 | "IDREFS attribute %s reference an unknown ID \"%s\"\n", |
| 4381 | attr->name, str); |
| 4382 | ctxt->valid = 0; |
| 4383 | } |
| 4384 | if (save == 0) |
| 4385 | break; |
| 4386 | *cur = save; |
| 4387 | while (IS_BLANK(*cur)) cur++; |
| 4388 | } |
| 4389 | xmlFree(dup); |
| 4390 | } |
| 4391 | } |
| 4392 | |
| 4393 | /** |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4394 | * xmlWalkValidateList: |
| 4395 | * @data: Contents of current link |
| 4396 | * @user: Value supplied by the user |
| 4397 | * |
| 4398 | * Return 0 to abort the walk or 1 to continue |
| 4399 | */ |
| 4400 | static int |
| 4401 | xmlWalkValidateList(const void *data, const void *user) |
| 4402 | { |
| 4403 | xmlValidateMemoPtr memo = (xmlValidateMemoPtr)user; |
| 4404 | xmlValidateRef((xmlRefPtr)data, memo->ctxt, memo->name); |
| 4405 | return 1; |
| 4406 | } |
| 4407 | |
| 4408 | /** |
| 4409 | * xmlValidateCheckRefCallback: |
| 4410 | * @ref_list: List of references |
| 4411 | * @ctxt: Validation context |
| 4412 | * @name: Name of ID we are searching for |
| 4413 | * |
| 4414 | */ |
| 4415 | static void |
| 4416 | xmlValidateCheckRefCallback(xmlListPtr ref_list, xmlValidCtxtPtr ctxt, |
| 4417 | const xmlChar *name) { |
| 4418 | xmlValidateMemo memo; |
| 4419 | |
| 4420 | if (ref_list == NULL) |
| 4421 | return; |
| 4422 | memo.ctxt = ctxt; |
| 4423 | memo.name = name; |
| 4424 | |
| 4425 | xmlListWalk(ref_list, xmlWalkValidateList, &memo); |
| 4426 | |
| 4427 | } |
| 4428 | |
| 4429 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4430 | * xmlValidateDocumentFinal: |
| 4431 | * @ctxt: the validation context |
| 4432 | * @doc: a document instance |
| 4433 | * |
| 4434 | * Does the final step for the document validation once all the |
| 4435 | * incremental validation steps have been completed |
| 4436 | * |
| 4437 | * basically it does the following checks described by the XML Rec |
| 4438 | * |
| 4439 | * |
| 4440 | * returns 1 if valid or 0 otherwise |
| 4441 | */ |
| 4442 | |
| 4443 | int |
| 4444 | xmlValidateDocumentFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4445 | xmlRefTablePtr table; |
| 4446 | |
| 4447 | if (doc == NULL) { |
| 4448 | xmlGenericError(xmlGenericErrorContext, |
| 4449 | "xmlValidateDocumentFinal: doc == NULL\n"); |
| 4450 | return(0); |
| 4451 | } |
| 4452 | |
| 4453 | /* |
| 4454 | * Check all the NOTATION/NOTATIONS attributes |
| 4455 | */ |
| 4456 | /* |
| 4457 | * Check all the ENTITY/ENTITIES attributes definition for validity |
| 4458 | */ |
| 4459 | /* |
| 4460 | * Check all the IDREF/IDREFS attributes definition for validity |
| 4461 | */ |
| 4462 | table = (xmlRefTablePtr) doc->refs; |
| 4463 | ctxt->doc = doc; |
| 4464 | ctxt->valid = 1; |
| 4465 | xmlHashScan(table, (xmlHashScanner) xmlValidateCheckRefCallback, ctxt); |
| 4466 | return(ctxt->valid); |
| 4467 | } |
| 4468 | |
| 4469 | /** |
| 4470 | * xmlValidateDtd: |
| 4471 | * @ctxt: the validation context |
| 4472 | * @doc: a document instance |
| 4473 | * @dtd: a dtd instance |
| 4474 | * |
| 4475 | * Try to validate the document against the dtd instance |
| 4476 | * |
| 4477 | * basically it does check all the definitions in the DtD. |
| 4478 | * |
| 4479 | * returns 1 if valid or 0 otherwise |
| 4480 | */ |
| 4481 | |
| 4482 | int |
| 4483 | xmlValidateDtd(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlDtdPtr dtd) { |
| 4484 | int ret; |
| 4485 | xmlDtdPtr oldExt; |
| 4486 | xmlNodePtr root; |
| 4487 | |
| 4488 | if (dtd == NULL) return(0); |
| 4489 | if (doc == NULL) return(0); |
| 4490 | oldExt = doc->extSubset; |
| 4491 | doc->extSubset = dtd; |
| 4492 | ret = xmlValidateRoot(ctxt, doc); |
| 4493 | if (ret == 0) { |
| 4494 | doc->extSubset = oldExt; |
| 4495 | return(ret); |
| 4496 | } |
| 4497 | if (doc->ids != NULL) { |
| 4498 | xmlFreeIDTable(doc->ids); |
| 4499 | doc->ids = NULL; |
| 4500 | } |
| 4501 | if (doc->refs != NULL) { |
| 4502 | xmlFreeRefTable(doc->refs); |
| 4503 | doc->refs = NULL; |
| 4504 | } |
| 4505 | root = xmlDocGetRootElement(doc); |
| 4506 | ret = xmlValidateElement(ctxt, doc, root); |
| 4507 | ret &= xmlValidateDocumentFinal(ctxt, doc); |
| 4508 | doc->extSubset = oldExt; |
| 4509 | return(ret); |
| 4510 | } |
| 4511 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4512 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4513 | xmlValidateAttributeCallback(xmlAttributePtr cur, xmlValidCtxtPtr ctxt, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 4514 | const xmlChar *name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4515 | if (cur == NULL) |
| 4516 | return; |
| 4517 | switch (cur->atype) { |
| 4518 | case XML_ATTRIBUTE_CDATA: |
| 4519 | case XML_ATTRIBUTE_ID: |
| 4520 | case XML_ATTRIBUTE_IDREF : |
| 4521 | case XML_ATTRIBUTE_IDREFS: |
| 4522 | case XML_ATTRIBUTE_NMTOKEN: |
| 4523 | case XML_ATTRIBUTE_NMTOKENS: |
| 4524 | case XML_ATTRIBUTE_ENUMERATION: |
| 4525 | break; |
| 4526 | case XML_ATTRIBUTE_ENTITY: |
| 4527 | case XML_ATTRIBUTE_ENTITIES: |
| 4528 | case XML_ATTRIBUTE_NOTATION: |
| 4529 | if (cur->defaultValue != NULL) { |
| 4530 | ctxt->valid &= xmlValidateAttributeValue2(ctxt, ctxt->doc, |
| 4531 | cur->name, cur->atype, cur->defaultValue); |
| 4532 | } |
| 4533 | if (cur->tree != NULL) { |
| 4534 | xmlEnumerationPtr tree = cur->tree; |
| 4535 | while (tree != NULL) { |
| 4536 | ctxt->valid &= xmlValidateAttributeValue2(ctxt, ctxt->doc, |
| 4537 | cur->name, cur->atype, tree->name); |
| 4538 | tree = tree->next; |
| 4539 | } |
| 4540 | } |
| 4541 | } |
| 4542 | } |
| 4543 | |
| 4544 | /** |
| 4545 | * xmlValidateDtdFinal: |
| 4546 | * @ctxt: the validation context |
| 4547 | * @doc: a document instance |
| 4548 | * |
| 4549 | * Does the final step for the dtds validation once all the |
| 4550 | * subsets have been parsed |
| 4551 | * |
| 4552 | * basically it does the following checks described by the XML Rec |
| 4553 | * - check that ENTITY and ENTITIES type attributes default or |
| 4554 | * possible values matches one of the defined entities. |
| 4555 | * - check that NOTATION type attributes default or |
| 4556 | * possible values matches one of the defined notations. |
| 4557 | * |
| 4558 | * returns 1 if valid or 0 otherwise |
| 4559 | */ |
| 4560 | |
| 4561 | int |
| 4562 | xmlValidateDtdFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4563 | int ret = 1; |
| 4564 | xmlDtdPtr dtd; |
| 4565 | xmlAttributeTablePtr table; |
| 4566 | |
| 4567 | if (doc == NULL) return(0); |
| 4568 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) |
| 4569 | return(0); |
| 4570 | ctxt->doc = doc; |
| 4571 | ctxt->valid = ret; |
| 4572 | dtd = doc->intSubset; |
| 4573 | if ((dtd != NULL) && (dtd->attributes != NULL)) { |
| 4574 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 4575 | xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt); |
| 4576 | } |
| 4577 | dtd = doc->extSubset; |
| 4578 | if ((dtd != NULL) && (dtd->attributes != NULL)) { |
| 4579 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 4580 | xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt); |
| 4581 | } |
| 4582 | return(ctxt->valid); |
| 4583 | } |
| 4584 | |
| 4585 | /** |
| 4586 | * xmlValidateDocument: |
| 4587 | * @ctxt: the validation context |
| 4588 | * @doc: a document instance |
| 4589 | * |
| 4590 | * Try to validate the document instance |
| 4591 | * |
| 4592 | * basically it does the all the checks described by the XML Rec |
| 4593 | * i.e. validates the internal and external subset (if present) |
| 4594 | * and validate the document tree. |
| 4595 | * |
| 4596 | * returns 1 if valid or 0 otherwise |
| 4597 | */ |
| 4598 | |
| 4599 | int |
| 4600 | xmlValidateDocument(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4601 | int ret; |
| 4602 | xmlNodePtr root; |
| 4603 | |
| 4604 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) |
| 4605 | return(0); |
| 4606 | if ((doc->intSubset != NULL) && ((doc->intSubset->SystemID != NULL) || |
| 4607 | (doc->intSubset->ExternalID != NULL)) && (doc->extSubset == NULL)) { |
| 4608 | doc->extSubset = xmlParseDTD(doc->intSubset->ExternalID, |
| 4609 | doc->intSubset->SystemID); |
| 4610 | if (doc->extSubset == NULL) { |
| 4611 | if (doc->intSubset->SystemID != NULL) { |
| 4612 | VERROR(ctxt->userData, |
| 4613 | "Could not load the external subset \"%s\"\n", |
| 4614 | doc->intSubset->SystemID); |
| 4615 | } else { |
| 4616 | VERROR(ctxt->userData, |
| 4617 | "Could not load the external subset \"%s\"\n", |
| 4618 | doc->intSubset->ExternalID); |
| 4619 | } |
| 4620 | return(0); |
| 4621 | } |
| 4622 | } |
| 4623 | |
| 4624 | if (doc->ids != NULL) { |
| 4625 | xmlFreeIDTable(doc->ids); |
| 4626 | doc->ids = NULL; |
| 4627 | } |
| 4628 | if (doc->refs != NULL) { |
| 4629 | xmlFreeRefTable(doc->refs); |
| 4630 | doc->refs = NULL; |
| 4631 | } |
| 4632 | ret = xmlValidateDtdFinal(ctxt, doc); |
| 4633 | if (!xmlValidateRoot(ctxt, doc)) return(0); |
| 4634 | |
| 4635 | root = xmlDocGetRootElement(doc); |
| 4636 | ret &= xmlValidateElement(ctxt, doc, root); |
| 4637 | ret &= xmlValidateDocumentFinal(ctxt, doc); |
| 4638 | return(ret); |
| 4639 | } |
| 4640 | |
| 4641 | |
| 4642 | /************************************************************************ |
| 4643 | * * |
| 4644 | * Routines for dynamic validation editing * |
| 4645 | * * |
| 4646 | ************************************************************************/ |
| 4647 | |
| 4648 | /** |
| 4649 | * xmlValidGetPotentialChildren: |
| 4650 | * @ctree: an element content tree |
| 4651 | * @list: an array to store the list of child names |
| 4652 | * @len: a pointer to the number of element in the list |
| 4653 | * @max: the size of the array |
| 4654 | * |
| 4655 | * Build/extend a list of potential children allowed by the content tree |
| 4656 | * |
| 4657 | * returns the number of element in the list, or -1 in case of error. |
| 4658 | */ |
| 4659 | |
| 4660 | int |
| 4661 | xmlValidGetPotentialChildren(xmlElementContent *ctree, const xmlChar **list, |
| 4662 | int *len, int max) { |
| 4663 | int i; |
| 4664 | |
| 4665 | if ((ctree == NULL) || (list == NULL) || (len == NULL)) |
| 4666 | return(-1); |
| 4667 | if (*len >= max) return(*len); |
| 4668 | |
| 4669 | switch (ctree->type) { |
| 4670 | case XML_ELEMENT_CONTENT_PCDATA: |
| 4671 | for (i = 0; i < *len;i++) |
| 4672 | if (xmlStrEqual(BAD_CAST "#PCDATA", list[i])) return(*len); |
| 4673 | list[(*len)++] = BAD_CAST "#PCDATA"; |
| 4674 | break; |
| 4675 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 4676 | for (i = 0; i < *len;i++) |
| 4677 | if (xmlStrEqual(ctree->name, list[i])) return(*len); |
| 4678 | list[(*len)++] = ctree->name; |
| 4679 | break; |
| 4680 | case XML_ELEMENT_CONTENT_SEQ: |
| 4681 | xmlValidGetPotentialChildren(ctree->c1, list, len, max); |
| 4682 | xmlValidGetPotentialChildren(ctree->c2, list, len, max); |
| 4683 | break; |
| 4684 | case XML_ELEMENT_CONTENT_OR: |
| 4685 | xmlValidGetPotentialChildren(ctree->c1, list, len, max); |
| 4686 | xmlValidGetPotentialChildren(ctree->c2, list, len, max); |
| 4687 | break; |
| 4688 | } |
| 4689 | |
| 4690 | return(*len); |
| 4691 | } |
| 4692 | |
| 4693 | /** |
| 4694 | * xmlValidGetValidElements: |
| 4695 | * @prev: an element to insert after |
| 4696 | * @next: an element to insert next |
| 4697 | * @list: an array to store the list of child names |
| 4698 | * @max: the size of the array |
| 4699 | * |
| 4700 | * This function returns the list of authorized children to insert |
| 4701 | * within an existing tree while respecting the validity constraints |
| 4702 | * forced by the Dtd. The insertion point is defined using @prev and |
| 4703 | * @next in the following ways: |
| 4704 | * to insert before 'node': xmlValidGetValidElements(node->prev, node, ... |
| 4705 | * to insert next 'node': xmlValidGetValidElements(node, node->next, ... |
| 4706 | * to replace 'node': xmlValidGetValidElements(node->prev, node->next, ... |
| 4707 | * to prepend a child to 'node': xmlValidGetValidElements(NULL, node->childs, |
| 4708 | * to append a child to 'node': xmlValidGetValidElements(node->last, NULL, ... |
| 4709 | * |
| 4710 | * pointers to the element names are inserted at the beginning of the array |
| 4711 | * and do not need to be freed. |
| 4712 | * |
| 4713 | * returns the number of element in the list, or -1 in case of error. If |
| 4714 | * the function returns the value @max the caller is invited to grow the |
| 4715 | * receiving array and retry. |
| 4716 | */ |
| 4717 | |
| 4718 | int |
| 4719 | xmlValidGetValidElements(xmlNode *prev, xmlNode *next, const xmlChar **list, |
| 4720 | int max) { |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4721 | xmlValidCtxt vctxt; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4722 | int nb_valid_elements = 0; |
| 4723 | const xmlChar *elements[256]; |
| 4724 | int nb_elements = 0, i; |
| 4725 | |
| 4726 | xmlNode *ref_node; |
| 4727 | xmlNode *parent; |
| 4728 | xmlNode *test_node; |
| 4729 | |
| 4730 | xmlNode *prev_next; |
| 4731 | xmlNode *next_prev; |
| 4732 | xmlNode *parent_childs; |
| 4733 | xmlNode *parent_last; |
| 4734 | |
| 4735 | xmlElement *element_desc; |
| 4736 | |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4737 | vctxt.userData = NULL; |
| 4738 | vctxt.error = NULL; |
| 4739 | vctxt.warning = NULL; |
| 4740 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4741 | if (prev == NULL && next == NULL) |
| 4742 | return(-1); |
| 4743 | |
| 4744 | if (list == NULL) return(-1); |
| 4745 | if (max <= 0) return(-1); |
| 4746 | |
| 4747 | nb_valid_elements = 0; |
| 4748 | ref_node = prev ? prev : next; |
| 4749 | parent = ref_node->parent; |
| 4750 | |
| 4751 | /* |
| 4752 | * Retrieves the parent element declaration |
| 4753 | */ |
| 4754 | element_desc = xmlGetDtdElementDesc(parent->doc->intSubset, |
| 4755 | parent->name); |
| 4756 | if ((element_desc == NULL) && (parent->doc->extSubset != NULL)) |
| 4757 | element_desc = xmlGetDtdElementDesc(parent->doc->extSubset, |
| 4758 | parent->name); |
| 4759 | if (element_desc == NULL) return(-1); |
| 4760 | |
| 4761 | /* |
| 4762 | * Do a backup of the current tree structure |
| 4763 | */ |
| 4764 | prev_next = prev ? prev->next : NULL; |
| 4765 | next_prev = next ? next->prev : NULL; |
| 4766 | parent_childs = parent->children; |
| 4767 | parent_last = parent->last; |
| 4768 | |
| 4769 | /* |
| 4770 | * Creates a dummy node and insert it into the tree |
| 4771 | */ |
| 4772 | test_node = xmlNewNode (NULL, BAD_CAST "<!dummy?>"); |
| 4773 | test_node->doc = ref_node->doc; |
| 4774 | test_node->parent = parent; |
| 4775 | test_node->prev = prev; |
| 4776 | test_node->next = next; |
| 4777 | |
| 4778 | if (prev) prev->next = test_node; |
| 4779 | else parent->children = test_node; |
| 4780 | |
| 4781 | if (next) next->prev = test_node; |
| 4782 | else parent->last = test_node; |
| 4783 | |
| 4784 | /* |
| 4785 | * Insert each potential child node and check if the parent is |
| 4786 | * still valid |
| 4787 | */ |
| 4788 | nb_elements = xmlValidGetPotentialChildren(element_desc->content, |
| 4789 | elements, &nb_elements, 256); |
| 4790 | |
| 4791 | for (i = 0;i < nb_elements;i++) { |
| 4792 | test_node->name = elements[i]; |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4793 | if (xmlValidateOneElement(&vctxt, parent->doc, parent)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4794 | int j; |
| 4795 | |
| 4796 | for (j = 0; j < nb_valid_elements;j++) |
| 4797 | if (xmlStrEqual(elements[i], list[j])) break; |
| 4798 | list[nb_valid_elements++] = elements[i]; |
| 4799 | if (nb_valid_elements >= max) break; |
| 4800 | } |
| 4801 | } |
| 4802 | |
| 4803 | /* |
| 4804 | * Restore the tree structure |
| 4805 | */ |
| 4806 | if (prev) prev->next = prev_next; |
| 4807 | if (next) next->prev = next_prev; |
| 4808 | parent->children = parent_childs; |
| 4809 | parent->last = parent_last; |
| 4810 | |
| 4811 | return(nb_valid_elements); |
| 4812 | } |