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 | /* |
Daniel Veillard | b44025c | 2001-10-11 22:55:55 +0000 | [diff] [blame] | 73 | * I use a home made algorithm less complex and easier to |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 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 | |
Daniel Veillard | b44025c | 2001-10-11 22:55:55 +0000 | [diff] [blame] | 84 | typedef struct _xmlValidState { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 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 | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 243 | xmlSnprintfElementContent(expr, 5000, 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 | |
Daniel Veillard | f4309d7 | 2001-10-02 09:28:58 +0000 | [diff] [blame] | 347 | #ifndef XML_XML_NAMESPACE |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 348 | /* xml: prefix is not really a namespace */ |
| 349 | if ((name[0] == 'x') && (name[1] == 'm') && |
| 350 | (name[2] == 'l') && (name[3] == ':')) |
| 351 | return(NULL); |
Daniel Veillard | f4309d7 | 2001-10-02 09:28:58 +0000 | [diff] [blame] | 352 | #endif |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 353 | |
| 354 | /* nasty but valid */ |
| 355 | if (name[0] == ':') |
| 356 | return(NULL); |
| 357 | |
| 358 | /* |
| 359 | * we are not trying to validate but just to cut, and yes it will |
| 360 | * work even if this is as set of UTF-8 encoded chars |
| 361 | */ |
| 362 | while ((name[len] != 0) && (name[len] != ':')) |
| 363 | len++; |
| 364 | |
| 365 | if (name[len] == 0) |
| 366 | return(NULL); |
| 367 | |
| 368 | *prefix = xmlStrndup(name, len); |
| 369 | ret = xmlStrdup(&name[len + 1]); |
| 370 | |
| 371 | return(ret); |
| 372 | } |
| 373 | |
| 374 | /**************************************************************** |
| 375 | * * |
| 376 | * Util functions for data allocation/deallocation * |
| 377 | * * |
| 378 | ****************************************************************/ |
| 379 | |
| 380 | /** |
| 381 | * xmlNewElementContent: |
| 382 | * @name: the subelement name or NULL |
| 383 | * @type: the type of element content decl |
| 384 | * |
| 385 | * Allocate an element content structure. |
| 386 | * |
| 387 | * Returns NULL if not, othervise the new element content structure |
| 388 | */ |
| 389 | xmlElementContentPtr |
| 390 | xmlNewElementContent(xmlChar *name, xmlElementContentType type) { |
| 391 | xmlElementContentPtr ret; |
| 392 | |
| 393 | switch(type) { |
| 394 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 395 | if (name == NULL) { |
| 396 | xmlGenericError(xmlGenericErrorContext, |
| 397 | "xmlNewElementContent : name == NULL !\n"); |
| 398 | } |
| 399 | break; |
| 400 | case XML_ELEMENT_CONTENT_PCDATA: |
| 401 | case XML_ELEMENT_CONTENT_SEQ: |
| 402 | case XML_ELEMENT_CONTENT_OR: |
| 403 | if (name != NULL) { |
| 404 | xmlGenericError(xmlGenericErrorContext, |
| 405 | "xmlNewElementContent : name != NULL !\n"); |
| 406 | } |
| 407 | break; |
| 408 | default: |
| 409 | xmlGenericError(xmlGenericErrorContext, |
| 410 | "xmlNewElementContent: unknown type %d\n", type); |
| 411 | return(NULL); |
| 412 | } |
| 413 | ret = (xmlElementContentPtr) xmlMalloc(sizeof(xmlElementContent)); |
| 414 | if (ret == NULL) { |
| 415 | xmlGenericError(xmlGenericErrorContext, |
| 416 | "xmlNewElementContent : out of memory!\n"); |
| 417 | return(NULL); |
| 418 | } |
| 419 | ret->type = type; |
| 420 | ret->ocur = XML_ELEMENT_CONTENT_ONCE; |
| 421 | if (name != NULL) |
| 422 | ret->name = xmlStrdup(name); |
| 423 | else |
| 424 | ret->name = NULL; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 425 | ret->c1 = ret->c2 = ret->parent = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 426 | return(ret); |
| 427 | } |
| 428 | |
| 429 | /** |
| 430 | * xmlCopyElementContent: |
| 431 | * @content: An element content pointer. |
| 432 | * |
| 433 | * Build a copy of an element content description. |
| 434 | * |
| 435 | * Returns the new xmlElementContentPtr or NULL in case of error. |
| 436 | */ |
| 437 | xmlElementContentPtr |
| 438 | xmlCopyElementContent(xmlElementContentPtr cur) { |
| 439 | xmlElementContentPtr ret; |
| 440 | |
| 441 | if (cur == NULL) return(NULL); |
| 442 | ret = xmlNewElementContent((xmlChar *) cur->name, cur->type); |
| 443 | if (ret == NULL) { |
| 444 | xmlGenericError(xmlGenericErrorContext, |
| 445 | "xmlCopyElementContent : out of memory\n"); |
| 446 | return(NULL); |
| 447 | } |
| 448 | ret->ocur = cur->ocur; |
| 449 | if (cur->c1 != NULL) ret->c1 = xmlCopyElementContent(cur->c1); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 450 | if (ret->c1 != NULL) |
| 451 | ret->c1->parent = ret; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 452 | if (cur->c2 != NULL) ret->c2 = xmlCopyElementContent(cur->c2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 453 | if (ret->c2 != NULL) |
| 454 | ret->c2->parent = ret; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 455 | return(ret); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * xmlFreeElementContent: |
| 460 | * @cur: the element content tree to free |
| 461 | * |
| 462 | * Free an element content structure. This is a recursive call ! |
| 463 | */ |
| 464 | void |
| 465 | xmlFreeElementContent(xmlElementContentPtr cur) { |
| 466 | if (cur == NULL) return; |
| 467 | switch (cur->type) { |
| 468 | case XML_ELEMENT_CONTENT_PCDATA: |
| 469 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 470 | case XML_ELEMENT_CONTENT_SEQ: |
| 471 | case XML_ELEMENT_CONTENT_OR: |
| 472 | break; |
| 473 | default: |
| 474 | xmlGenericError(xmlGenericErrorContext, |
| 475 | "xmlFreeElementContent : type %d\n", cur->type); |
| 476 | return; |
| 477 | } |
| 478 | if (cur->c1 != NULL) xmlFreeElementContent(cur->c1); |
| 479 | if (cur->c2 != NULL) xmlFreeElementContent(cur->c2); |
| 480 | if (cur->name != NULL) xmlFree((xmlChar *) cur->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 481 | xmlFree(cur); |
| 482 | } |
| 483 | |
| 484 | /** |
| 485 | * xmlDumpElementContent: |
| 486 | * @buf: An XML buffer |
| 487 | * @content: An element table |
| 488 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 489 | * |
| 490 | * This will dump the content of the element table as an XML DTD definition |
| 491 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 492 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 493 | xmlDumpElementContent(xmlBufferPtr buf, xmlElementContentPtr content, int glob) { |
| 494 | if (content == NULL) return; |
| 495 | |
| 496 | if (glob) xmlBufferWriteChar(buf, "("); |
| 497 | switch (content->type) { |
| 498 | case XML_ELEMENT_CONTENT_PCDATA: |
| 499 | xmlBufferWriteChar(buf, "#PCDATA"); |
| 500 | break; |
| 501 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 502 | xmlBufferWriteCHAR(buf, content->name); |
| 503 | break; |
| 504 | case XML_ELEMENT_CONTENT_SEQ: |
| 505 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 506 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 507 | xmlDumpElementContent(buf, content->c1, 1); |
| 508 | else |
| 509 | xmlDumpElementContent(buf, content->c1, 0); |
| 510 | xmlBufferWriteChar(buf, " , "); |
| 511 | if (content->c2->type == XML_ELEMENT_CONTENT_OR) |
| 512 | xmlDumpElementContent(buf, content->c2, 1); |
| 513 | else |
| 514 | xmlDumpElementContent(buf, content->c2, 0); |
| 515 | break; |
| 516 | case XML_ELEMENT_CONTENT_OR: |
| 517 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 518 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
| 519 | xmlDumpElementContent(buf, content->c1, 1); |
| 520 | else |
| 521 | xmlDumpElementContent(buf, content->c1, 0); |
| 522 | xmlBufferWriteChar(buf, " | "); |
| 523 | if (content->c2->type == XML_ELEMENT_CONTENT_SEQ) |
| 524 | xmlDumpElementContent(buf, content->c2, 1); |
| 525 | else |
| 526 | xmlDumpElementContent(buf, content->c2, 0); |
| 527 | break; |
| 528 | default: |
| 529 | xmlGenericError(xmlGenericErrorContext, |
| 530 | "xmlDumpElementContent: unknown type %d\n", |
| 531 | content->type); |
| 532 | } |
| 533 | if (glob) |
| 534 | xmlBufferWriteChar(buf, ")"); |
| 535 | switch (content->ocur) { |
| 536 | case XML_ELEMENT_CONTENT_ONCE: |
| 537 | break; |
| 538 | case XML_ELEMENT_CONTENT_OPT: |
| 539 | xmlBufferWriteChar(buf, "?"); |
| 540 | break; |
| 541 | case XML_ELEMENT_CONTENT_MULT: |
| 542 | xmlBufferWriteChar(buf, "*"); |
| 543 | break; |
| 544 | case XML_ELEMENT_CONTENT_PLUS: |
| 545 | xmlBufferWriteChar(buf, "+"); |
| 546 | break; |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * xmlSprintfElementContent: |
| 552 | * @buf: an output buffer |
| 553 | * @content: An element table |
| 554 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 555 | * |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 556 | * Deprecated, unsafe, use xmlSnprintfElementContent |
| 557 | */ |
| 558 | void |
| 559 | xmlSprintfElementContent(char *buf ATTRIBUTE_UNUSED, |
| 560 | xmlElementContentPtr content ATTRIBUTE_UNUSED, |
| 561 | int glob ATTRIBUTE_UNUSED) { |
| 562 | } |
| 563 | |
| 564 | /** |
| 565 | * xmlSnprintfElementContent: |
| 566 | * @buf: an output buffer |
| 567 | * @size: the buffer size |
| 568 | * @content: An element table |
| 569 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 570 | * |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 571 | * This will dump the content of the element content definition |
| 572 | * Intended just for the debug routine |
| 573 | */ |
| 574 | void |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 575 | xmlSnprintfElementContent(char *buf, int size, xmlElementContentPtr content, int glob) { |
| 576 | int len; |
| 577 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 578 | if (content == NULL) return; |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 579 | len = strlen(buf); |
| 580 | if (size - len < 50) { |
| 581 | if ((size - len > 4) && (buf[len - 1] != '.')) |
| 582 | strcat(buf, " ..."); |
| 583 | return; |
| 584 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 585 | if (glob) strcat(buf, "("); |
| 586 | switch (content->type) { |
| 587 | case XML_ELEMENT_CONTENT_PCDATA: |
| 588 | strcat(buf, "#PCDATA"); |
| 589 | break; |
| 590 | case XML_ELEMENT_CONTENT_ELEMENT: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 591 | if (size - len < xmlStrlen(content->name + 10)) { |
| 592 | strcat(buf, " ..."); |
| 593 | return; |
| 594 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 595 | strcat(buf, (char *) content->name); |
| 596 | break; |
| 597 | case XML_ELEMENT_CONTENT_SEQ: |
| 598 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 599 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 600 | xmlSnprintfElementContent(buf, size, content->c1, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 601 | else |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 602 | xmlSnprintfElementContent(buf, size, content->c1, 0); |
| 603 | len = strlen(buf); |
| 604 | if (size - len < 50) { |
| 605 | if ((size - len > 4) && (buf[len - 1] != '.')) |
| 606 | strcat(buf, " ..."); |
| 607 | return; |
| 608 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 609 | strcat(buf, " , "); |
| 610 | if (content->c2->type == XML_ELEMENT_CONTENT_OR) |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 611 | xmlSnprintfElementContent(buf, size, content->c2, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 612 | else |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 613 | xmlSnprintfElementContent(buf, size, content->c2, 0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 614 | break; |
| 615 | case XML_ELEMENT_CONTENT_OR: |
| 616 | if ((content->c1->type == XML_ELEMENT_CONTENT_OR) || |
| 617 | (content->c1->type == XML_ELEMENT_CONTENT_SEQ)) |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 618 | xmlSnprintfElementContent(buf, size, content->c1, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 619 | else |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 620 | xmlSnprintfElementContent(buf, size, content->c1, 0); |
| 621 | len = strlen(buf); |
| 622 | if (size - len < 50) { |
| 623 | if ((size - len > 4) && (buf[len - 1] != '.')) |
| 624 | strcat(buf, " ..."); |
| 625 | return; |
| 626 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 627 | strcat(buf, " | "); |
| 628 | if (content->c2->type == XML_ELEMENT_CONTENT_SEQ) |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 629 | xmlSnprintfElementContent(buf, size, content->c2, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 630 | else |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 631 | xmlSnprintfElementContent(buf, size, content->c2, 0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 632 | break; |
| 633 | } |
| 634 | if (glob) |
| 635 | strcat(buf, ")"); |
| 636 | switch (content->ocur) { |
| 637 | case XML_ELEMENT_CONTENT_ONCE: |
| 638 | break; |
| 639 | case XML_ELEMENT_CONTENT_OPT: |
| 640 | strcat(buf, "?"); |
| 641 | break; |
| 642 | case XML_ELEMENT_CONTENT_MULT: |
| 643 | strcat(buf, "*"); |
| 644 | break; |
| 645 | case XML_ELEMENT_CONTENT_PLUS: |
| 646 | strcat(buf, "+"); |
| 647 | break; |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | /**************************************************************** |
| 652 | * * |
| 653 | * Registration of DTD declarations * |
| 654 | * * |
| 655 | ****************************************************************/ |
| 656 | |
| 657 | /** |
| 658 | * xmlCreateElementTable: |
| 659 | * |
| 660 | * create and initialize an empty element hash table. |
| 661 | * |
| 662 | * Returns the xmlElementTablePtr just created or NULL in case of error. |
| 663 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 664 | static xmlElementTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 665 | xmlCreateElementTable(void) { |
| 666 | return(xmlHashCreate(0)); |
| 667 | } |
| 668 | |
| 669 | /** |
| 670 | * xmlFreeElement: |
| 671 | * @elem: An element |
| 672 | * |
| 673 | * Deallocate the memory used by an element definition |
| 674 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 675 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 676 | xmlFreeElement(xmlElementPtr elem) { |
| 677 | if (elem == NULL) return; |
| 678 | xmlUnlinkNode((xmlNodePtr) elem); |
| 679 | xmlFreeElementContent(elem->content); |
| 680 | if (elem->name != NULL) |
| 681 | xmlFree((xmlChar *) elem->name); |
| 682 | if (elem->prefix != NULL) |
| 683 | xmlFree((xmlChar *) elem->prefix); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 684 | xmlFree(elem); |
| 685 | } |
| 686 | |
| 687 | |
| 688 | /** |
| 689 | * xmlAddElementDecl: |
| 690 | * @ctxt: the validation context |
| 691 | * @dtd: pointer to the DTD |
| 692 | * @name: the entity name |
| 693 | * @type: the element type |
| 694 | * @content: the element content tree or NULL |
| 695 | * |
| 696 | * Register a new element declaration |
| 697 | * |
| 698 | * Returns NULL if not, othervise the entity |
| 699 | */ |
| 700 | xmlElementPtr |
| 701 | xmlAddElementDecl(xmlValidCtxtPtr ctxt, xmlDtdPtr dtd, const xmlChar *name, |
| 702 | xmlElementTypeVal type, |
| 703 | xmlElementContentPtr content) { |
| 704 | xmlElementPtr ret; |
| 705 | xmlElementTablePtr table; |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 706 | xmlAttributePtr oldAttributes = NULL; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 707 | xmlChar *ns, *uqname; |
| 708 | |
| 709 | if (dtd == NULL) { |
| 710 | xmlGenericError(xmlGenericErrorContext, |
| 711 | "xmlAddElementDecl: dtd == NULL\n"); |
| 712 | return(NULL); |
| 713 | } |
| 714 | if (name == NULL) { |
| 715 | xmlGenericError(xmlGenericErrorContext, |
| 716 | "xmlAddElementDecl: name == NULL\n"); |
| 717 | return(NULL); |
| 718 | } |
| 719 | switch (type) { |
| 720 | case XML_ELEMENT_TYPE_EMPTY: |
| 721 | if (content != NULL) { |
| 722 | xmlGenericError(xmlGenericErrorContext, |
| 723 | "xmlAddElementDecl: content != NULL for EMPTY\n"); |
| 724 | return(NULL); |
| 725 | } |
| 726 | break; |
| 727 | case XML_ELEMENT_TYPE_ANY: |
| 728 | if (content != NULL) { |
| 729 | xmlGenericError(xmlGenericErrorContext, |
| 730 | "xmlAddElementDecl: content != NULL for ANY\n"); |
| 731 | return(NULL); |
| 732 | } |
| 733 | break; |
| 734 | case XML_ELEMENT_TYPE_MIXED: |
| 735 | if (content == NULL) { |
| 736 | xmlGenericError(xmlGenericErrorContext, |
| 737 | "xmlAddElementDecl: content == NULL for MIXED\n"); |
| 738 | return(NULL); |
| 739 | } |
| 740 | break; |
| 741 | case XML_ELEMENT_TYPE_ELEMENT: |
| 742 | if (content == NULL) { |
| 743 | xmlGenericError(xmlGenericErrorContext, |
| 744 | "xmlAddElementDecl: content == NULL for ELEMENT\n"); |
| 745 | return(NULL); |
| 746 | } |
| 747 | break; |
| 748 | default: |
| 749 | xmlGenericError(xmlGenericErrorContext, |
| 750 | "xmlAddElementDecl: unknown type %d\n", type); |
| 751 | return(NULL); |
| 752 | } |
| 753 | |
| 754 | /* |
| 755 | * check if name is a QName |
| 756 | */ |
| 757 | uqname = xmlSplitQName2(name, &ns); |
| 758 | if (uqname != NULL) |
| 759 | name = uqname; |
| 760 | |
| 761 | /* |
| 762 | * Create the Element table if needed. |
| 763 | */ |
| 764 | table = (xmlElementTablePtr) dtd->elements; |
| 765 | if (table == NULL) { |
| 766 | table = xmlCreateElementTable(); |
| 767 | dtd->elements = (void *) table; |
| 768 | } |
| 769 | if (table == NULL) { |
| 770 | xmlGenericError(xmlGenericErrorContext, |
| 771 | "xmlAddElementDecl: Table creation failed!\n"); |
| 772 | return(NULL); |
| 773 | } |
| 774 | |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 775 | /* |
| 776 | * lookup old attributes inserted on an undefined element in the |
| 777 | * internal subset. |
| 778 | */ |
| 779 | if ((dtd->doc != NULL) && (dtd->doc->intSubset != NULL)) { |
| 780 | ret = xmlHashLookup2(dtd->doc->intSubset->elements, name, ns); |
| 781 | if ((ret != NULL) && (ret->etype == XML_ELEMENT_TYPE_UNDEFINED)) { |
| 782 | oldAttributes = ret->attributes; |
| 783 | ret->attributes = NULL; |
| 784 | xmlHashRemoveEntry2(dtd->doc->intSubset->elements, name, ns, NULL); |
| 785 | xmlFreeElement(ret); |
| 786 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 787 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 788 | |
| 789 | /* |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 790 | * The element may already be present if one of its attribute |
| 791 | * was registered first |
| 792 | */ |
| 793 | ret = xmlHashLookup2(table, name, ns); |
| 794 | if (ret != NULL) { |
| 795 | if (ret->etype != XML_ELEMENT_TYPE_UNDEFINED) { |
| 796 | /* |
| 797 | * The element is already defined in this Dtd. |
| 798 | */ |
| 799 | VERROR(ctxt->userData, "Redefinition of element %s\n", name); |
| 800 | if (uqname != NULL) |
| 801 | xmlFree(uqname); |
| 802 | return(NULL); |
| 803 | } |
| 804 | } else { |
| 805 | ret = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 806 | if (ret == NULL) { |
| 807 | xmlGenericError(xmlGenericErrorContext, |
| 808 | "xmlAddElementDecl: out of memory\n"); |
| 809 | return(NULL); |
| 810 | } |
| 811 | memset(ret, 0, sizeof(xmlElement)); |
| 812 | ret->type = XML_ELEMENT_DECL; |
| 813 | |
| 814 | /* |
| 815 | * fill the structure. |
| 816 | */ |
| 817 | ret->name = xmlStrdup(name); |
| 818 | ret->prefix = ns; |
| 819 | |
| 820 | /* |
| 821 | * Validity Check: |
| 822 | * Insertion must not fail |
| 823 | */ |
| 824 | if (xmlHashAddEntry2(table, name, ns, ret)) { |
| 825 | /* |
| 826 | * The element is already defined in this Dtd. |
| 827 | */ |
| 828 | VERROR(ctxt->userData, "Redefinition of element %s\n", name); |
| 829 | xmlFreeElement(ret); |
| 830 | if (uqname != NULL) |
| 831 | xmlFree(uqname); |
| 832 | return(NULL); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * Finish to fill the structure. |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 838 | */ |
| 839 | ret->etype = type; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 840 | ret->content = xmlCopyElementContent(content); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 841 | ret->attributes = oldAttributes; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 842 | |
| 843 | /* |
| 844 | * Link it to the Dtd |
| 845 | */ |
| 846 | ret->parent = dtd; |
| 847 | ret->doc = dtd->doc; |
| 848 | if (dtd->last == NULL) { |
| 849 | dtd->children = dtd->last = (xmlNodePtr) ret; |
| 850 | } else { |
| 851 | dtd->last->next = (xmlNodePtr) ret; |
| 852 | ret->prev = dtd->last; |
| 853 | dtd->last = (xmlNodePtr) ret; |
| 854 | } |
| 855 | if (uqname != NULL) |
| 856 | xmlFree(uqname); |
| 857 | return(ret); |
| 858 | } |
| 859 | |
| 860 | /** |
| 861 | * xmlFreeElementTable: |
| 862 | * @table: An element table |
| 863 | * |
| 864 | * Deallocate the memory used by an element hash table. |
| 865 | */ |
| 866 | void |
| 867 | xmlFreeElementTable(xmlElementTablePtr table) { |
| 868 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeElement); |
| 869 | } |
| 870 | |
| 871 | /** |
| 872 | * xmlCopyElement: |
| 873 | * @elem: An element |
| 874 | * |
| 875 | * Build a copy of an element. |
| 876 | * |
| 877 | * Returns the new xmlElementPtr or NULL in case of error. |
| 878 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 879 | static xmlElementPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 880 | xmlCopyElement(xmlElementPtr elem) { |
| 881 | xmlElementPtr cur; |
| 882 | |
| 883 | cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 884 | if (cur == NULL) { |
| 885 | xmlGenericError(xmlGenericErrorContext, |
| 886 | "xmlCopyElement: out of memory !\n"); |
| 887 | return(NULL); |
| 888 | } |
| 889 | memset(cur, 0, sizeof(xmlElement)); |
| 890 | cur->type = XML_ELEMENT_DECL; |
| 891 | cur->etype = elem->etype; |
| 892 | if (elem->name != NULL) |
| 893 | cur->name = xmlStrdup(elem->name); |
| 894 | else |
| 895 | cur->name = NULL; |
| 896 | if (elem->prefix != NULL) |
| 897 | cur->prefix = xmlStrdup(elem->prefix); |
| 898 | else |
| 899 | cur->prefix = NULL; |
| 900 | cur->content = xmlCopyElementContent(elem->content); |
| 901 | /* TODO : rebuild the attribute list on the copy */ |
| 902 | cur->attributes = NULL; |
| 903 | return(cur); |
| 904 | } |
| 905 | |
| 906 | /** |
| 907 | * xmlCopyElementTable: |
| 908 | * @table: An element table |
| 909 | * |
| 910 | * Build a copy of an element table. |
| 911 | * |
| 912 | * Returns the new xmlElementTablePtr or NULL in case of error. |
| 913 | */ |
| 914 | xmlElementTablePtr |
| 915 | xmlCopyElementTable(xmlElementTablePtr table) { |
| 916 | return((xmlElementTablePtr) xmlHashCopy(table, |
| 917 | (xmlHashCopier) xmlCopyElement)); |
| 918 | } |
| 919 | |
| 920 | /** |
| 921 | * xmlDumpElementDecl: |
| 922 | * @buf: the XML buffer output |
| 923 | * @elem: An element table |
| 924 | * |
| 925 | * This will dump the content of the element declaration as an XML |
| 926 | * DTD definition |
| 927 | */ |
| 928 | void |
| 929 | xmlDumpElementDecl(xmlBufferPtr buf, xmlElementPtr elem) { |
| 930 | switch (elem->etype) { |
| 931 | case XML_ELEMENT_TYPE_EMPTY: |
| 932 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 933 | xmlBufferWriteCHAR(buf, elem->name); |
| 934 | xmlBufferWriteChar(buf, " EMPTY>\n"); |
| 935 | break; |
| 936 | case XML_ELEMENT_TYPE_ANY: |
| 937 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 938 | xmlBufferWriteCHAR(buf, elem->name); |
| 939 | xmlBufferWriteChar(buf, " ANY>\n"); |
| 940 | break; |
| 941 | case XML_ELEMENT_TYPE_MIXED: |
| 942 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 943 | xmlBufferWriteCHAR(buf, elem->name); |
| 944 | xmlBufferWriteChar(buf, " "); |
| 945 | xmlDumpElementContent(buf, elem->content, 1); |
| 946 | xmlBufferWriteChar(buf, ">\n"); |
| 947 | break; |
| 948 | case XML_ELEMENT_TYPE_ELEMENT: |
| 949 | xmlBufferWriteChar(buf, "<!ELEMENT "); |
| 950 | xmlBufferWriteCHAR(buf, elem->name); |
| 951 | xmlBufferWriteChar(buf, " "); |
| 952 | xmlDumpElementContent(buf, elem->content, 1); |
| 953 | xmlBufferWriteChar(buf, ">\n"); |
| 954 | break; |
| 955 | default: |
| 956 | xmlGenericError(xmlGenericErrorContext, |
| 957 | "xmlDumpElementDecl: internal: unknown type %d\n", |
| 958 | elem->etype); |
| 959 | } |
| 960 | } |
| 961 | |
| 962 | /** |
| 963 | * xmlDumpElementTable: |
| 964 | * @buf: the XML buffer output |
| 965 | * @table: An element table |
| 966 | * |
| 967 | * This will dump the content of the element table as an XML DTD definition |
| 968 | */ |
| 969 | void |
| 970 | xmlDumpElementTable(xmlBufferPtr buf, xmlElementTablePtr table) { |
| 971 | xmlHashScan(table, (xmlHashScanner) xmlDumpElementDecl, buf); |
| 972 | } |
| 973 | |
| 974 | /** |
| 975 | * xmlCreateEnumeration: |
| 976 | * @name: the enumeration name or NULL |
| 977 | * |
| 978 | * create and initialize an enumeration attribute node. |
| 979 | * |
| 980 | * Returns the xmlEnumerationPtr just created or NULL in case |
| 981 | * of error. |
| 982 | */ |
| 983 | xmlEnumerationPtr |
| 984 | xmlCreateEnumeration(xmlChar *name) { |
| 985 | xmlEnumerationPtr ret; |
| 986 | |
| 987 | ret = (xmlEnumerationPtr) xmlMalloc(sizeof(xmlEnumeration)); |
| 988 | if (ret == NULL) { |
| 989 | xmlGenericError(xmlGenericErrorContext, |
| 990 | "xmlCreateEnumeration : xmlMalloc(%ld) failed\n", |
| 991 | (long)sizeof(xmlEnumeration)); |
| 992 | return(NULL); |
| 993 | } |
| 994 | memset(ret, 0, sizeof(xmlEnumeration)); |
| 995 | |
| 996 | if (name != NULL) |
| 997 | ret->name = xmlStrdup(name); |
| 998 | return(ret); |
| 999 | } |
| 1000 | |
| 1001 | /** |
| 1002 | * xmlFreeEnumeration: |
| 1003 | * @cur: the tree to free. |
| 1004 | * |
| 1005 | * free an enumeration attribute node (recursive). |
| 1006 | */ |
| 1007 | void |
| 1008 | xmlFreeEnumeration(xmlEnumerationPtr cur) { |
| 1009 | if (cur == NULL) return; |
| 1010 | |
| 1011 | if (cur->next != NULL) xmlFreeEnumeration(cur->next); |
| 1012 | |
| 1013 | if (cur->name != NULL) xmlFree((xmlChar *) cur->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1014 | xmlFree(cur); |
| 1015 | } |
| 1016 | |
| 1017 | /** |
| 1018 | * xmlCopyEnumeration: |
| 1019 | * @cur: the tree to copy. |
| 1020 | * |
| 1021 | * Copy an enumeration attribute node (recursive). |
| 1022 | * |
| 1023 | * Returns the xmlEnumerationPtr just created or NULL in case |
| 1024 | * of error. |
| 1025 | */ |
| 1026 | xmlEnumerationPtr |
| 1027 | xmlCopyEnumeration(xmlEnumerationPtr cur) { |
| 1028 | xmlEnumerationPtr ret; |
| 1029 | |
| 1030 | if (cur == NULL) return(NULL); |
| 1031 | ret = xmlCreateEnumeration((xmlChar *) cur->name); |
| 1032 | |
| 1033 | if (cur->next != NULL) ret->next = xmlCopyEnumeration(cur->next); |
| 1034 | else ret->next = NULL; |
| 1035 | |
| 1036 | return(ret); |
| 1037 | } |
| 1038 | |
| 1039 | /** |
| 1040 | * xmlDumpEnumeration: |
| 1041 | * @buf: the XML buffer output |
| 1042 | * @enum: An enumeration |
| 1043 | * |
| 1044 | * This will dump the content of the enumeration |
| 1045 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1046 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1047 | xmlDumpEnumeration(xmlBufferPtr buf, xmlEnumerationPtr cur) { |
| 1048 | if (cur == NULL) return; |
| 1049 | |
| 1050 | xmlBufferWriteCHAR(buf, cur->name); |
| 1051 | if (cur->next == NULL) |
| 1052 | xmlBufferWriteChar(buf, ")"); |
| 1053 | else { |
| 1054 | xmlBufferWriteChar(buf, " | "); |
| 1055 | xmlDumpEnumeration(buf, cur->next); |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | /** |
| 1060 | * xmlCreateAttributeTable: |
| 1061 | * |
| 1062 | * create and initialize an empty attribute hash table. |
| 1063 | * |
| 1064 | * Returns the xmlAttributeTablePtr just created or NULL in case |
| 1065 | * of error. |
| 1066 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1067 | static xmlAttributeTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1068 | xmlCreateAttributeTable(void) { |
| 1069 | return(xmlHashCreate(0)); |
| 1070 | } |
| 1071 | |
| 1072 | /** |
| 1073 | * xmlScanAttributeDeclCallback: |
| 1074 | * @attr: the attribute decl |
| 1075 | * @list: the list to update |
| 1076 | * |
| 1077 | * Callback called by xmlScanAttributeDecl when a new attribute |
| 1078 | * has to be entered in the list. |
| 1079 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1080 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1081 | xmlScanAttributeDeclCallback(xmlAttributePtr attr, xmlAttributePtr *list, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1082 | const xmlChar* name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1083 | attr->nexth = *list; |
| 1084 | *list = attr; |
| 1085 | } |
| 1086 | |
| 1087 | /** |
| 1088 | * xmlScanAttributeDecl: |
| 1089 | * @dtd: pointer to the DTD |
| 1090 | * @elem: the element name |
| 1091 | * |
| 1092 | * When inserting a new element scan the DtD for existing attributes |
| 1093 | * for taht element and initialize the Attribute chain |
| 1094 | * |
| 1095 | * Returns the pointer to the first attribute decl in the chain, |
| 1096 | * possibly NULL. |
| 1097 | */ |
| 1098 | xmlAttributePtr |
| 1099 | xmlScanAttributeDecl(xmlDtdPtr dtd, const xmlChar *elem) { |
| 1100 | xmlAttributePtr ret = NULL; |
| 1101 | xmlAttributeTablePtr table; |
| 1102 | |
| 1103 | if (dtd == NULL) { |
| 1104 | xmlGenericError(xmlGenericErrorContext, |
| 1105 | "xmlScanAttributeDecl: dtd == NULL\n"); |
| 1106 | return(NULL); |
| 1107 | } |
| 1108 | if (elem == NULL) { |
| 1109 | xmlGenericError(xmlGenericErrorContext, |
| 1110 | "xmlScanAttributeDecl: elem == NULL\n"); |
| 1111 | return(NULL); |
| 1112 | } |
| 1113 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 1114 | if (table == NULL) |
| 1115 | return(NULL); |
| 1116 | |
| 1117 | /* WRONG !!! */ |
| 1118 | xmlHashScan3(table, NULL, NULL, elem, |
| 1119 | (xmlHashScanner) xmlScanAttributeDeclCallback, &ret); |
| 1120 | return(ret); |
| 1121 | } |
| 1122 | |
| 1123 | /** |
| 1124 | * xmlScanIDAttributeDecl: |
| 1125 | * @ctxt: the validation context |
| 1126 | * @elem: the element name |
| 1127 | * |
| 1128 | * Verify that the element don't have too many ID attributes |
| 1129 | * declared. |
| 1130 | * |
| 1131 | * Returns the number of ID attributes found. |
| 1132 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1133 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1134 | xmlScanIDAttributeDecl(xmlValidCtxtPtr ctxt, xmlElementPtr elem) { |
| 1135 | xmlAttributePtr cur; |
| 1136 | int ret = 0; |
| 1137 | |
| 1138 | if (elem == NULL) return(0); |
| 1139 | cur = elem->attributes; |
| 1140 | while (cur != NULL) { |
| 1141 | if (cur->atype == XML_ATTRIBUTE_ID) { |
| 1142 | ret ++; |
| 1143 | if (ret > 1) |
| 1144 | VERROR(ctxt->userData, |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 1145 | "Element %s has too many ID attributes defined : %s\n", |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1146 | elem->name, cur->name); |
| 1147 | } |
| 1148 | cur = cur->nexth; |
| 1149 | } |
| 1150 | return(ret); |
| 1151 | } |
| 1152 | |
| 1153 | /** |
| 1154 | * xmlFreeAttribute: |
| 1155 | * @elem: An attribute |
| 1156 | * |
| 1157 | * Deallocate the memory used by an attribute definition |
| 1158 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1159 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1160 | xmlFreeAttribute(xmlAttributePtr attr) { |
| 1161 | if (attr == NULL) return; |
| 1162 | xmlUnlinkNode((xmlNodePtr) attr); |
| 1163 | if (attr->tree != NULL) |
| 1164 | xmlFreeEnumeration(attr->tree); |
| 1165 | if (attr->elem != NULL) |
| 1166 | xmlFree((xmlChar *) attr->elem); |
| 1167 | if (attr->name != NULL) |
| 1168 | xmlFree((xmlChar *) attr->name); |
| 1169 | if (attr->defaultValue != NULL) |
| 1170 | xmlFree((xmlChar *) attr->defaultValue); |
| 1171 | if (attr->prefix != NULL) |
| 1172 | xmlFree((xmlChar *) attr->prefix); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1173 | xmlFree(attr); |
| 1174 | } |
| 1175 | |
| 1176 | |
| 1177 | /** |
| 1178 | * xmlAddAttributeDecl: |
| 1179 | * @ctxt: the validation context |
| 1180 | * @dtd: pointer to the DTD |
| 1181 | * @elem: the element name |
| 1182 | * @name: the attribute name |
| 1183 | * @ns: the attribute namespace prefix |
| 1184 | * @type: the attribute type |
| 1185 | * @def: the attribute default type |
| 1186 | * @defaultValue: the attribute default value |
| 1187 | * @tree: if it's an enumeration, the associated list |
| 1188 | * |
| 1189 | * Register a new attribute declaration |
| 1190 | * Note that @tree becomes the ownership of the DTD |
| 1191 | * |
| 1192 | * Returns NULL if not new, othervise the attribute decl |
| 1193 | */ |
| 1194 | xmlAttributePtr |
| 1195 | xmlAddAttributeDecl(xmlValidCtxtPtr ctxt, xmlDtdPtr dtd, const xmlChar *elem, |
| 1196 | const xmlChar *name, const xmlChar *ns, |
| 1197 | xmlAttributeType type, xmlAttributeDefault def, |
| 1198 | const xmlChar *defaultValue, xmlEnumerationPtr tree) { |
| 1199 | xmlAttributePtr ret; |
| 1200 | xmlAttributeTablePtr table; |
| 1201 | xmlElementPtr elemDef; |
| 1202 | |
| 1203 | if (dtd == NULL) { |
| 1204 | xmlGenericError(xmlGenericErrorContext, |
| 1205 | "xmlAddAttributeDecl: dtd == NULL\n"); |
| 1206 | xmlFreeEnumeration(tree); |
| 1207 | return(NULL); |
| 1208 | } |
| 1209 | if (name == NULL) { |
| 1210 | xmlGenericError(xmlGenericErrorContext, |
| 1211 | "xmlAddAttributeDecl: name == NULL\n"); |
| 1212 | xmlFreeEnumeration(tree); |
| 1213 | return(NULL); |
| 1214 | } |
| 1215 | if (elem == NULL) { |
| 1216 | xmlGenericError(xmlGenericErrorContext, |
| 1217 | "xmlAddAttributeDecl: elem == NULL\n"); |
| 1218 | xmlFreeEnumeration(tree); |
| 1219 | return(NULL); |
| 1220 | } |
| 1221 | /* |
| 1222 | * Check the type and possibly the default value. |
| 1223 | */ |
| 1224 | switch (type) { |
| 1225 | case XML_ATTRIBUTE_CDATA: |
| 1226 | break; |
| 1227 | case XML_ATTRIBUTE_ID: |
| 1228 | break; |
| 1229 | case XML_ATTRIBUTE_IDREF: |
| 1230 | break; |
| 1231 | case XML_ATTRIBUTE_IDREFS: |
| 1232 | break; |
| 1233 | case XML_ATTRIBUTE_ENTITY: |
| 1234 | break; |
| 1235 | case XML_ATTRIBUTE_ENTITIES: |
| 1236 | break; |
| 1237 | case XML_ATTRIBUTE_NMTOKEN: |
| 1238 | break; |
| 1239 | case XML_ATTRIBUTE_NMTOKENS: |
| 1240 | break; |
| 1241 | case XML_ATTRIBUTE_ENUMERATION: |
| 1242 | break; |
| 1243 | case XML_ATTRIBUTE_NOTATION: |
| 1244 | break; |
| 1245 | default: |
| 1246 | xmlGenericError(xmlGenericErrorContext, |
| 1247 | "xmlAddAttributeDecl: unknown type %d\n", type); |
| 1248 | xmlFreeEnumeration(tree); |
| 1249 | return(NULL); |
| 1250 | } |
| 1251 | if ((defaultValue != NULL) && |
| 1252 | (!xmlValidateAttributeValue(type, defaultValue))) { |
| 1253 | VERROR(ctxt->userData, "Attribute %s on %s: invalid default value\n", |
| 1254 | elem, name, defaultValue); |
| 1255 | defaultValue = NULL; |
| 1256 | } |
| 1257 | |
| 1258 | /* |
| 1259 | * Create the Attribute table if needed. |
| 1260 | */ |
| 1261 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 1262 | if (table == NULL) { |
| 1263 | table = xmlCreateAttributeTable(); |
| 1264 | dtd->attributes = (void *) table; |
| 1265 | } |
| 1266 | if (table == NULL) { |
| 1267 | xmlGenericError(xmlGenericErrorContext, |
| 1268 | "xmlAddAttributeDecl: Table creation failed!\n"); |
| 1269 | return(NULL); |
| 1270 | } |
| 1271 | |
| 1272 | |
| 1273 | ret = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute)); |
| 1274 | if (ret == NULL) { |
| 1275 | xmlGenericError(xmlGenericErrorContext, |
| 1276 | "xmlAddAttributeDecl: out of memory\n"); |
| 1277 | return(NULL); |
| 1278 | } |
| 1279 | memset(ret, 0, sizeof(xmlAttribute)); |
| 1280 | ret->type = XML_ATTRIBUTE_DECL; |
| 1281 | |
| 1282 | /* |
| 1283 | * fill the structure. |
| 1284 | */ |
| 1285 | ret->atype = type; |
| 1286 | ret->name = xmlStrdup(name); |
| 1287 | ret->prefix = xmlStrdup(ns); |
| 1288 | ret->elem = xmlStrdup(elem); |
| 1289 | ret->def = def; |
| 1290 | ret->tree = tree; |
| 1291 | if (defaultValue != NULL) |
| 1292 | ret->defaultValue = xmlStrdup(defaultValue); |
| 1293 | |
| 1294 | /* |
| 1295 | * Validity Check: |
| 1296 | * Search the DTD for previous declarations of the ATTLIST |
| 1297 | */ |
| 1298 | if (xmlHashAddEntry3(table, name, ns, elem, ret) < 0) { |
| 1299 | /* |
| 1300 | * The attribute is already defined in this Dtd. |
| 1301 | */ |
| 1302 | VWARNING(ctxt->userData, |
| 1303 | "Attribute %s on %s: already defined\n", |
| 1304 | name, elem); |
| 1305 | xmlFreeAttribute(ret); |
| 1306 | return(NULL); |
| 1307 | } |
| 1308 | |
| 1309 | /* |
| 1310 | * Validity Check: |
| 1311 | * Multiple ID per element |
| 1312 | */ |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 1313 | elemDef = xmlGetDtdElementDesc2(dtd, elem, 1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1314 | if (elemDef != NULL) { |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame] | 1315 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1316 | if ((type == XML_ATTRIBUTE_ID) && |
| 1317 | (xmlScanIDAttributeDecl(NULL, elemDef) != 0)) |
| 1318 | VERROR(ctxt->userData, |
| 1319 | "Element %s has too may ID attributes defined : %s\n", |
| 1320 | elem, name); |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame] | 1321 | /* |
| 1322 | * Insert namespace default def first they need to be |
| 1323 | * processed firt. |
| 1324 | */ |
| 1325 | if ((xmlStrEqual(ret->name, BAD_CAST "xmlns")) || |
| 1326 | ((ret->prefix != NULL && |
| 1327 | (xmlStrEqual(ret->prefix, BAD_CAST "xmlns"))))) { |
| 1328 | ret->nexth = elemDef->attributes; |
| 1329 | elemDef->attributes = ret; |
| 1330 | } else { |
| 1331 | xmlAttributePtr tmp = elemDef->attributes; |
| 1332 | |
| 1333 | while ((tmp != NULL) && |
| 1334 | ((xmlStrEqual(tmp->name, BAD_CAST "xmlns")) || |
| 1335 | ((ret->prefix != NULL && |
| 1336 | (xmlStrEqual(ret->prefix, BAD_CAST "xmlns")))))) { |
| 1337 | if (tmp->nexth == NULL) |
| 1338 | break; |
| 1339 | tmp = tmp->nexth; |
| 1340 | } |
| 1341 | if (tmp != NULL) { |
| 1342 | ret->nexth = tmp->nexth; |
| 1343 | tmp->nexth = ret; |
| 1344 | } else { |
| 1345 | ret->nexth = elemDef->attributes; |
| 1346 | elemDef->attributes = ret; |
| 1347 | } |
| 1348 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1349 | } |
| 1350 | |
| 1351 | /* |
| 1352 | * Link it to the Dtd |
| 1353 | */ |
| 1354 | ret->parent = dtd; |
| 1355 | ret->doc = dtd->doc; |
| 1356 | if (dtd->last == NULL) { |
| 1357 | dtd->children = dtd->last = (xmlNodePtr) ret; |
| 1358 | } else { |
| 1359 | dtd->last->next = (xmlNodePtr) ret; |
| 1360 | ret->prev = dtd->last; |
| 1361 | dtd->last = (xmlNodePtr) ret; |
| 1362 | } |
| 1363 | return(ret); |
| 1364 | } |
| 1365 | |
| 1366 | /** |
| 1367 | * xmlFreeAttributeTable: |
| 1368 | * @table: An attribute table |
| 1369 | * |
| 1370 | * Deallocate the memory used by an entities hash table. |
| 1371 | */ |
| 1372 | void |
| 1373 | xmlFreeAttributeTable(xmlAttributeTablePtr table) { |
| 1374 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeAttribute); |
| 1375 | } |
| 1376 | |
| 1377 | /** |
| 1378 | * xmlCopyAttribute: |
| 1379 | * @attr: An attribute |
| 1380 | * |
| 1381 | * Build a copy of an attribute. |
| 1382 | * |
| 1383 | * Returns the new xmlAttributePtr or NULL in case of error. |
| 1384 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1385 | static xmlAttributePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1386 | xmlCopyAttribute(xmlAttributePtr attr) { |
| 1387 | xmlAttributePtr cur; |
| 1388 | |
| 1389 | cur = (xmlAttributePtr) xmlMalloc(sizeof(xmlAttribute)); |
| 1390 | if (cur == NULL) { |
| 1391 | xmlGenericError(xmlGenericErrorContext, |
| 1392 | "xmlCopyAttribute: out of memory !\n"); |
| 1393 | return(NULL); |
| 1394 | } |
| 1395 | memset(cur, 0, sizeof(xmlAttribute)); |
| 1396 | cur->atype = attr->atype; |
| 1397 | cur->def = attr->def; |
| 1398 | cur->tree = xmlCopyEnumeration(attr->tree); |
| 1399 | if (attr->elem != NULL) |
| 1400 | cur->elem = xmlStrdup(attr->elem); |
| 1401 | if (attr->name != NULL) |
| 1402 | cur->name = xmlStrdup(attr->name); |
| 1403 | if (attr->defaultValue != NULL) |
| 1404 | cur->defaultValue = xmlStrdup(attr->defaultValue); |
| 1405 | return(cur); |
| 1406 | } |
| 1407 | |
| 1408 | /** |
| 1409 | * xmlCopyAttributeTable: |
| 1410 | * @table: An attribute table |
| 1411 | * |
| 1412 | * Build a copy of an attribute table. |
| 1413 | * |
| 1414 | * Returns the new xmlAttributeTablePtr or NULL in case of error. |
| 1415 | */ |
| 1416 | xmlAttributeTablePtr |
| 1417 | xmlCopyAttributeTable(xmlAttributeTablePtr table) { |
| 1418 | return((xmlAttributeTablePtr) xmlHashCopy(table, |
| 1419 | (xmlHashCopier) xmlCopyAttribute)); |
| 1420 | } |
| 1421 | |
| 1422 | /** |
| 1423 | * xmlDumpAttributeDecl: |
| 1424 | * @buf: the XML buffer output |
| 1425 | * @attr: An attribute declaration |
| 1426 | * |
| 1427 | * This will dump the content of the attribute declaration as an XML |
| 1428 | * DTD definition |
| 1429 | */ |
| 1430 | void |
| 1431 | xmlDumpAttributeDecl(xmlBufferPtr buf, xmlAttributePtr attr) { |
| 1432 | xmlBufferWriteChar(buf, "<!ATTLIST "); |
| 1433 | xmlBufferWriteCHAR(buf, attr->elem); |
| 1434 | xmlBufferWriteChar(buf, " "); |
| 1435 | if (attr->prefix != NULL) { |
| 1436 | xmlBufferWriteCHAR(buf, attr->prefix); |
| 1437 | xmlBufferWriteChar(buf, ":"); |
| 1438 | } |
| 1439 | xmlBufferWriteCHAR(buf, attr->name); |
| 1440 | switch (attr->atype) { |
| 1441 | case XML_ATTRIBUTE_CDATA: |
| 1442 | xmlBufferWriteChar(buf, " CDATA"); |
| 1443 | break; |
| 1444 | case XML_ATTRIBUTE_ID: |
| 1445 | xmlBufferWriteChar(buf, " ID"); |
| 1446 | break; |
| 1447 | case XML_ATTRIBUTE_IDREF: |
| 1448 | xmlBufferWriteChar(buf, " IDREF"); |
| 1449 | break; |
| 1450 | case XML_ATTRIBUTE_IDREFS: |
| 1451 | xmlBufferWriteChar(buf, " IDREFS"); |
| 1452 | break; |
| 1453 | case XML_ATTRIBUTE_ENTITY: |
| 1454 | xmlBufferWriteChar(buf, " ENTITY"); |
| 1455 | break; |
| 1456 | case XML_ATTRIBUTE_ENTITIES: |
| 1457 | xmlBufferWriteChar(buf, " ENTITIES"); |
| 1458 | break; |
| 1459 | case XML_ATTRIBUTE_NMTOKEN: |
| 1460 | xmlBufferWriteChar(buf, " NMTOKEN"); |
| 1461 | break; |
| 1462 | case XML_ATTRIBUTE_NMTOKENS: |
| 1463 | xmlBufferWriteChar(buf, " NMTOKENS"); |
| 1464 | break; |
| 1465 | case XML_ATTRIBUTE_ENUMERATION: |
| 1466 | xmlBufferWriteChar(buf, " ("); |
| 1467 | xmlDumpEnumeration(buf, attr->tree); |
| 1468 | break; |
| 1469 | case XML_ATTRIBUTE_NOTATION: |
| 1470 | xmlBufferWriteChar(buf, " NOTATION ("); |
| 1471 | xmlDumpEnumeration(buf, attr->tree); |
| 1472 | break; |
| 1473 | default: |
| 1474 | xmlGenericError(xmlGenericErrorContext, |
| 1475 | "xmlDumpAttributeTable: internal: unknown type %d\n", |
| 1476 | attr->atype); |
| 1477 | } |
| 1478 | switch (attr->def) { |
| 1479 | case XML_ATTRIBUTE_NONE: |
| 1480 | break; |
| 1481 | case XML_ATTRIBUTE_REQUIRED: |
| 1482 | xmlBufferWriteChar(buf, " #REQUIRED"); |
| 1483 | break; |
| 1484 | case XML_ATTRIBUTE_IMPLIED: |
| 1485 | xmlBufferWriteChar(buf, " #IMPLIED"); |
| 1486 | break; |
| 1487 | case XML_ATTRIBUTE_FIXED: |
| 1488 | xmlBufferWriteChar(buf, " #FIXED"); |
| 1489 | break; |
| 1490 | default: |
| 1491 | xmlGenericError(xmlGenericErrorContext, |
| 1492 | "xmlDumpAttributeTable: internal: unknown default %d\n", |
| 1493 | attr->def); |
| 1494 | } |
| 1495 | if (attr->defaultValue != NULL) { |
| 1496 | xmlBufferWriteChar(buf, " "); |
| 1497 | xmlBufferWriteQuotedString(buf, attr->defaultValue); |
| 1498 | } |
| 1499 | xmlBufferWriteChar(buf, ">\n"); |
| 1500 | } |
| 1501 | |
| 1502 | /** |
| 1503 | * xmlDumpAttributeTable: |
| 1504 | * @buf: the XML buffer output |
| 1505 | * @table: An attribute table |
| 1506 | * |
| 1507 | * This will dump the content of the attribute table as an XML DTD definition |
| 1508 | */ |
| 1509 | void |
| 1510 | xmlDumpAttributeTable(xmlBufferPtr buf, xmlAttributeTablePtr table) { |
| 1511 | xmlHashScan(table, (xmlHashScanner) xmlDumpAttributeDecl, buf); |
| 1512 | } |
| 1513 | |
| 1514 | /************************************************************************ |
| 1515 | * * |
| 1516 | * NOTATIONs * |
| 1517 | * * |
| 1518 | ************************************************************************/ |
| 1519 | /** |
| 1520 | * xmlCreateNotationTable: |
| 1521 | * |
| 1522 | * create and initialize an empty notation hash table. |
| 1523 | * |
| 1524 | * Returns the xmlNotationTablePtr just created or NULL in case |
| 1525 | * of error. |
| 1526 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1527 | static xmlNotationTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1528 | xmlCreateNotationTable(void) { |
| 1529 | return(xmlHashCreate(0)); |
| 1530 | } |
| 1531 | |
| 1532 | /** |
| 1533 | * xmlFreeNotation: |
| 1534 | * @not: A notation |
| 1535 | * |
| 1536 | * Deallocate the memory used by an notation definition |
| 1537 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1538 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1539 | xmlFreeNotation(xmlNotationPtr nota) { |
| 1540 | if (nota == NULL) return; |
| 1541 | if (nota->name != NULL) |
| 1542 | xmlFree((xmlChar *) nota->name); |
| 1543 | if (nota->PublicID != NULL) |
| 1544 | xmlFree((xmlChar *) nota->PublicID); |
| 1545 | if (nota->SystemID != NULL) |
| 1546 | xmlFree((xmlChar *) nota->SystemID); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1547 | xmlFree(nota); |
| 1548 | } |
| 1549 | |
| 1550 | |
| 1551 | /** |
| 1552 | * xmlAddNotationDecl: |
| 1553 | * @dtd: pointer to the DTD |
| 1554 | * @ctxt: the validation context |
| 1555 | * @name: the entity name |
| 1556 | * @PublicID: the public identifier or NULL |
| 1557 | * @SystemID: the system identifier or NULL |
| 1558 | * |
| 1559 | * Register a new notation declaration |
| 1560 | * |
| 1561 | * Returns NULL if not, othervise the entity |
| 1562 | */ |
| 1563 | xmlNotationPtr |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 1564 | xmlAddNotationDecl(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDtdPtr dtd, |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1565 | const xmlChar *name, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1566 | const xmlChar *PublicID, const xmlChar *SystemID) { |
| 1567 | xmlNotationPtr ret; |
| 1568 | xmlNotationTablePtr table; |
| 1569 | |
| 1570 | if (dtd == NULL) { |
| 1571 | xmlGenericError(xmlGenericErrorContext, |
| 1572 | "xmlAddNotationDecl: dtd == NULL\n"); |
| 1573 | return(NULL); |
| 1574 | } |
| 1575 | if (name == NULL) { |
| 1576 | xmlGenericError(xmlGenericErrorContext, |
| 1577 | "xmlAddNotationDecl: name == NULL\n"); |
| 1578 | return(NULL); |
| 1579 | } |
| 1580 | if ((PublicID == NULL) && (SystemID == NULL)) { |
| 1581 | xmlGenericError(xmlGenericErrorContext, |
| 1582 | "xmlAddNotationDecl: no PUBLIC ID nor SYSTEM ID\n"); |
| 1583 | } |
| 1584 | |
| 1585 | /* |
| 1586 | * Create the Notation table if needed. |
| 1587 | */ |
| 1588 | table = (xmlNotationTablePtr) dtd->notations; |
| 1589 | if (table == NULL) |
| 1590 | dtd->notations = table = xmlCreateNotationTable(); |
| 1591 | if (table == NULL) { |
| 1592 | xmlGenericError(xmlGenericErrorContext, |
| 1593 | "xmlAddNotationDecl: Table creation failed!\n"); |
| 1594 | return(NULL); |
| 1595 | } |
| 1596 | |
| 1597 | ret = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation)); |
| 1598 | if (ret == NULL) { |
| 1599 | xmlGenericError(xmlGenericErrorContext, |
| 1600 | "xmlAddNotationDecl: out of memory\n"); |
| 1601 | return(NULL); |
| 1602 | } |
| 1603 | memset(ret, 0, sizeof(xmlNotation)); |
| 1604 | |
| 1605 | /* |
| 1606 | * fill the structure. |
| 1607 | */ |
| 1608 | ret->name = xmlStrdup(name); |
| 1609 | if (SystemID != NULL) |
| 1610 | ret->SystemID = xmlStrdup(SystemID); |
| 1611 | if (PublicID != NULL) |
| 1612 | ret->PublicID = xmlStrdup(PublicID); |
| 1613 | |
| 1614 | /* |
| 1615 | * Validity Check: |
| 1616 | * Check the DTD for previous declarations of the ATTLIST |
| 1617 | */ |
| 1618 | if (xmlHashAddEntry(table, name, ret)) { |
| 1619 | xmlGenericError(xmlGenericErrorContext, |
| 1620 | "xmlAddNotationDecl: %s already defined\n", name); |
| 1621 | xmlFreeNotation(ret); |
| 1622 | return(NULL); |
| 1623 | } |
| 1624 | return(ret); |
| 1625 | } |
| 1626 | |
| 1627 | /** |
| 1628 | * xmlFreeNotationTable: |
| 1629 | * @table: An notation table |
| 1630 | * |
| 1631 | * Deallocate the memory used by an entities hash table. |
| 1632 | */ |
| 1633 | void |
| 1634 | xmlFreeNotationTable(xmlNotationTablePtr table) { |
| 1635 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeNotation); |
| 1636 | } |
| 1637 | |
| 1638 | /** |
| 1639 | * xmlCopyNotation: |
| 1640 | * @nota: A notation |
| 1641 | * |
| 1642 | * Build a copy of a notation. |
| 1643 | * |
| 1644 | * Returns the new xmlNotationPtr or NULL in case of error. |
| 1645 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1646 | static xmlNotationPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1647 | xmlCopyNotation(xmlNotationPtr nota) { |
| 1648 | xmlNotationPtr cur; |
| 1649 | |
| 1650 | cur = (xmlNotationPtr) xmlMalloc(sizeof(xmlNotation)); |
| 1651 | if (cur == NULL) { |
| 1652 | xmlGenericError(xmlGenericErrorContext, |
| 1653 | "xmlCopyNotation: out of memory !\n"); |
| 1654 | return(NULL); |
| 1655 | } |
| 1656 | if (nota->name != NULL) |
| 1657 | cur->name = xmlStrdup(nota->name); |
| 1658 | else |
| 1659 | cur->name = NULL; |
| 1660 | if (nota->PublicID != NULL) |
| 1661 | cur->PublicID = xmlStrdup(nota->PublicID); |
| 1662 | else |
| 1663 | cur->PublicID = NULL; |
| 1664 | if (nota->SystemID != NULL) |
| 1665 | cur->SystemID = xmlStrdup(nota->SystemID); |
| 1666 | else |
| 1667 | cur->SystemID = NULL; |
| 1668 | return(cur); |
| 1669 | } |
| 1670 | |
| 1671 | /** |
| 1672 | * xmlCopyNotationTable: |
| 1673 | * @table: A notation table |
| 1674 | * |
| 1675 | * Build a copy of a notation table. |
| 1676 | * |
| 1677 | * Returns the new xmlNotationTablePtr or NULL in case of error. |
| 1678 | */ |
| 1679 | xmlNotationTablePtr |
| 1680 | xmlCopyNotationTable(xmlNotationTablePtr table) { |
| 1681 | return((xmlNotationTablePtr) xmlHashCopy(table, |
| 1682 | (xmlHashCopier) xmlCopyNotation)); |
| 1683 | } |
| 1684 | |
| 1685 | /** |
| 1686 | * xmlDumpNotationDecl: |
| 1687 | * @buf: the XML buffer output |
| 1688 | * @nota: A notation declaration |
| 1689 | * |
| 1690 | * This will dump the content the notation declaration as an XML DTD definition |
| 1691 | */ |
| 1692 | void |
| 1693 | xmlDumpNotationDecl(xmlBufferPtr buf, xmlNotationPtr nota) { |
| 1694 | xmlBufferWriteChar(buf, "<!NOTATION "); |
| 1695 | xmlBufferWriteCHAR(buf, nota->name); |
| 1696 | if (nota->PublicID != NULL) { |
| 1697 | xmlBufferWriteChar(buf, " PUBLIC "); |
| 1698 | xmlBufferWriteQuotedString(buf, nota->PublicID); |
| 1699 | if (nota->SystemID != NULL) { |
| 1700 | xmlBufferWriteChar(buf, " "); |
| 1701 | xmlBufferWriteCHAR(buf, nota->SystemID); |
| 1702 | } |
| 1703 | } else { |
| 1704 | xmlBufferWriteChar(buf, " SYSTEM "); |
| 1705 | xmlBufferWriteCHAR(buf, nota->SystemID); |
| 1706 | } |
| 1707 | xmlBufferWriteChar(buf, " >\n"); |
| 1708 | } |
| 1709 | |
| 1710 | /** |
| 1711 | * xmlDumpNotationTable: |
| 1712 | * @buf: the XML buffer output |
| 1713 | * @table: A notation table |
| 1714 | * |
| 1715 | * This will dump the content of the notation table as an XML DTD definition |
| 1716 | */ |
| 1717 | void |
| 1718 | xmlDumpNotationTable(xmlBufferPtr buf, xmlNotationTablePtr table) { |
| 1719 | xmlHashScan(table, (xmlHashScanner) xmlDumpNotationDecl, buf); |
| 1720 | } |
| 1721 | |
| 1722 | /************************************************************************ |
| 1723 | * * |
| 1724 | * IDs * |
| 1725 | * * |
| 1726 | ************************************************************************/ |
| 1727 | /** |
| 1728 | * xmlCreateIDTable: |
| 1729 | * |
| 1730 | * create and initialize an empty id hash table. |
| 1731 | * |
| 1732 | * Returns the xmlIDTablePtr just created or NULL in case |
| 1733 | * of error. |
| 1734 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1735 | static xmlIDTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1736 | xmlCreateIDTable(void) { |
| 1737 | return(xmlHashCreate(0)); |
| 1738 | } |
| 1739 | |
| 1740 | /** |
| 1741 | * xmlFreeID: |
| 1742 | * @not: A id |
| 1743 | * |
| 1744 | * Deallocate the memory used by an id definition |
| 1745 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1746 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1747 | xmlFreeID(xmlIDPtr id) { |
| 1748 | if (id == NULL) return; |
| 1749 | if (id->value != NULL) |
| 1750 | xmlFree((xmlChar *) id->value); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1751 | xmlFree(id); |
| 1752 | } |
| 1753 | |
| 1754 | /** |
| 1755 | * xmlAddID: |
| 1756 | * @ctxt: the validation context |
| 1757 | * @doc: pointer to the document |
| 1758 | * @value: the value name |
| 1759 | * @attr: the attribute holding the ID |
| 1760 | * |
| 1761 | * Register a new id declaration |
| 1762 | * |
| 1763 | * Returns NULL if not, othervise the new xmlIDPtr |
| 1764 | */ |
| 1765 | xmlIDPtr |
| 1766 | xmlAddID(xmlValidCtxtPtr ctxt, xmlDocPtr doc, const xmlChar *value, |
| 1767 | xmlAttrPtr attr) { |
| 1768 | xmlIDPtr ret; |
| 1769 | xmlIDTablePtr table; |
| 1770 | |
| 1771 | if (doc == NULL) { |
| 1772 | xmlGenericError(xmlGenericErrorContext, |
| 1773 | "xmlAddIDDecl: doc == NULL\n"); |
| 1774 | return(NULL); |
| 1775 | } |
| 1776 | if (value == NULL) { |
| 1777 | xmlGenericError(xmlGenericErrorContext, |
| 1778 | "xmlAddIDDecl: value == NULL\n"); |
| 1779 | return(NULL); |
| 1780 | } |
| 1781 | if (attr == NULL) { |
| 1782 | xmlGenericError(xmlGenericErrorContext, |
| 1783 | "xmlAddIDDecl: attr == NULL\n"); |
| 1784 | return(NULL); |
| 1785 | } |
| 1786 | |
| 1787 | /* |
| 1788 | * Create the ID table if needed. |
| 1789 | */ |
| 1790 | table = (xmlIDTablePtr) doc->ids; |
| 1791 | if (table == NULL) |
| 1792 | doc->ids = table = xmlCreateIDTable(); |
| 1793 | if (table == NULL) { |
| 1794 | xmlGenericError(xmlGenericErrorContext, |
| 1795 | "xmlAddID: Table creation failed!\n"); |
| 1796 | return(NULL); |
| 1797 | } |
| 1798 | |
| 1799 | ret = (xmlIDPtr) xmlMalloc(sizeof(xmlID)); |
| 1800 | if (ret == NULL) { |
| 1801 | xmlGenericError(xmlGenericErrorContext, |
| 1802 | "xmlAddID: out of memory\n"); |
| 1803 | return(NULL); |
| 1804 | } |
| 1805 | |
| 1806 | /* |
| 1807 | * fill the structure. |
| 1808 | */ |
| 1809 | ret->value = xmlStrdup(value); |
| 1810 | ret->attr = attr; |
| 1811 | |
| 1812 | if (xmlHashAddEntry(table, value, ret) < 0) { |
| 1813 | /* |
| 1814 | * The id is already defined in this Dtd. |
| 1815 | */ |
| 1816 | VERROR(ctxt->userData, "ID %s already defined\n", value); |
| 1817 | xmlFreeID(ret); |
| 1818 | return(NULL); |
| 1819 | } |
| 1820 | return(ret); |
| 1821 | } |
| 1822 | |
| 1823 | /** |
| 1824 | * xmlFreeIDTable: |
| 1825 | * @table: An id table |
| 1826 | * |
| 1827 | * Deallocate the memory used by an ID hash table. |
| 1828 | */ |
| 1829 | void |
| 1830 | xmlFreeIDTable(xmlIDTablePtr table) { |
| 1831 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeID); |
| 1832 | } |
| 1833 | |
| 1834 | /** |
| 1835 | * xmlIsID: |
| 1836 | * @doc: the document |
| 1837 | * @elem: the element carrying the attribute |
| 1838 | * @attr: the attribute |
| 1839 | * |
| 1840 | * Determine whether an attribute is of type ID. In case we have Dtd(s) |
| 1841 | * then this is simple, otherwise we use an heuristic: name ID (upper |
| 1842 | * or lowercase). |
| 1843 | * |
| 1844 | * Returns 0 or 1 depending on the lookup result |
| 1845 | */ |
| 1846 | int |
| 1847 | xmlIsID(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) { |
| 1848 | if (doc == NULL) return(0); |
| 1849 | if (attr == NULL) return(0); |
| 1850 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) { |
| 1851 | return(0); |
| 1852 | } else if (doc->type == XML_HTML_DOCUMENT_NODE) { |
| 1853 | if ((xmlStrEqual(BAD_CAST "id", attr->name)) || |
| 1854 | (xmlStrEqual(BAD_CAST "name", attr->name))) |
| 1855 | return(1); |
| 1856 | return(0); |
| 1857 | } else { |
| 1858 | xmlAttributePtr attrDecl; |
| 1859 | |
| 1860 | if (elem == NULL) return(0); |
| 1861 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, attr->name); |
| 1862 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 1863 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, |
| 1864 | attr->name); |
| 1865 | |
| 1866 | if ((attrDecl != NULL) && (attrDecl->atype == XML_ATTRIBUTE_ID)) |
| 1867 | return(1); |
| 1868 | } |
| 1869 | return(0); |
| 1870 | } |
| 1871 | |
| 1872 | /** |
| 1873 | * xmlRemoveID |
| 1874 | * @doc: the document |
| 1875 | * @attr: the attribute |
| 1876 | * |
| 1877 | * Remove the given attribute from the ID table maintained internally. |
| 1878 | * |
| 1879 | * Returns -1 if the lookup failed and 0 otherwise |
| 1880 | */ |
| 1881 | int |
| 1882 | xmlRemoveID(xmlDocPtr doc, xmlAttrPtr attr) { |
| 1883 | xmlAttrPtr cur; |
| 1884 | xmlIDTablePtr table; |
| 1885 | xmlChar *ID; |
| 1886 | |
| 1887 | if (doc == NULL) return(-1); |
| 1888 | if (attr == NULL) return(-1); |
| 1889 | table = (xmlIDTablePtr) doc->ids; |
| 1890 | if (table == NULL) |
| 1891 | return(-1); |
| 1892 | |
| 1893 | if (attr == NULL) |
| 1894 | return(-1); |
| 1895 | ID = xmlNodeListGetString(doc, attr->children, 1); |
| 1896 | if (ID == NULL) |
| 1897 | return(-1); |
| 1898 | cur = xmlHashLookup(table, ID); |
| 1899 | if (cur != attr) { |
| 1900 | xmlFree(ID); |
| 1901 | return(-1); |
| 1902 | } |
| 1903 | xmlHashUpdateEntry(table, ID, NULL, (xmlHashDeallocator) xmlFreeID); |
| 1904 | xmlFree(ID); |
| 1905 | return(0); |
| 1906 | } |
| 1907 | |
| 1908 | /** |
| 1909 | * xmlGetID: |
| 1910 | * @doc: pointer to the document |
| 1911 | * @ID: the ID value |
| 1912 | * |
| 1913 | * Search the attribute declaring the given ID |
| 1914 | * |
| 1915 | * Returns NULL if not found, otherwise the xmlAttrPtr defining the ID |
| 1916 | */ |
| 1917 | xmlAttrPtr |
| 1918 | xmlGetID(xmlDocPtr doc, const xmlChar *ID) { |
| 1919 | xmlIDTablePtr table; |
| 1920 | xmlIDPtr id; |
| 1921 | |
| 1922 | if (doc == NULL) { |
| 1923 | xmlGenericError(xmlGenericErrorContext, "xmlGetID: doc == NULL\n"); |
| 1924 | return(NULL); |
| 1925 | } |
| 1926 | |
| 1927 | if (ID == NULL) { |
| 1928 | xmlGenericError(xmlGenericErrorContext, "xmlGetID: ID == NULL\n"); |
| 1929 | return(NULL); |
| 1930 | } |
| 1931 | |
| 1932 | table = (xmlIDTablePtr) doc->ids; |
| 1933 | if (table == NULL) |
| 1934 | return(NULL); |
| 1935 | |
| 1936 | id = xmlHashLookup(table, ID); |
| 1937 | if (id == NULL) |
| 1938 | return(NULL); |
| 1939 | return(id->attr); |
| 1940 | } |
| 1941 | |
| 1942 | /************************************************************************ |
| 1943 | * * |
| 1944 | * Refs * |
| 1945 | * * |
| 1946 | ************************************************************************/ |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 1947 | typedef struct xmlRemoveMemo_t |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1948 | { |
| 1949 | xmlListPtr l; |
| 1950 | xmlAttrPtr ap; |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 1951 | } xmlRemoveMemo; |
| 1952 | |
| 1953 | typedef xmlRemoveMemo *xmlRemoveMemoPtr; |
| 1954 | |
| 1955 | typedef struct xmlValidateMemo_t |
| 1956 | { |
| 1957 | xmlValidCtxtPtr ctxt; |
| 1958 | const xmlChar *name; |
| 1959 | } xmlValidateMemo; |
| 1960 | |
| 1961 | typedef xmlValidateMemo *xmlValidateMemoPtr; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1962 | |
| 1963 | /** |
| 1964 | * xmlCreateRefTable: |
| 1965 | * |
| 1966 | * create and initialize an empty ref hash table. |
| 1967 | * |
| 1968 | * Returns the xmlRefTablePtr just created or NULL in case |
| 1969 | * of error. |
| 1970 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 1971 | static xmlRefTablePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1972 | xmlCreateRefTable(void) { |
| 1973 | return(xmlHashCreate(0)); |
| 1974 | } |
| 1975 | |
| 1976 | /** |
| 1977 | * xmlFreeRef: |
| 1978 | * @lk: A list link |
| 1979 | * |
| 1980 | * Deallocate the memory used by a ref definition |
| 1981 | */ |
| 1982 | static void |
| 1983 | xmlFreeRef(xmlLinkPtr lk) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1984 | xmlRefPtr ref = (xmlRefPtr)xmlLinkGetData(lk); |
| 1985 | if (ref == NULL) return; |
| 1986 | if (ref->value != NULL) |
| 1987 | xmlFree((xmlChar *)ref->value); |
| 1988 | xmlFree(ref); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 1989 | } |
| 1990 | |
| 1991 | /** |
| 1992 | * xmlFreeRefList: |
| 1993 | * @list_ref: A list of references. |
| 1994 | * |
| 1995 | * Deallocate the memory used by a list of references |
| 1996 | */ |
| 1997 | static void |
| 1998 | xmlFreeRefList(xmlListPtr list_ref) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 1999 | if (list_ref == NULL) return; |
| 2000 | xmlListDelete(list_ref); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2001 | } |
| 2002 | |
| 2003 | /** |
| 2004 | * xmlWalkRemoveRef: |
| 2005 | * @data: Contents of current link |
| 2006 | * @user: Value supplied by the user |
| 2007 | * |
| 2008 | * Return 0 to abort the walk or 1 to continue |
| 2009 | */ |
| 2010 | static int |
| 2011 | xmlWalkRemoveRef(const void *data, const void *user) |
| 2012 | { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2013 | xmlAttrPtr attr0 = ((xmlRefPtr)data)->attr; |
| 2014 | xmlAttrPtr attr1 = ((xmlRemoveMemoPtr)user)->ap; |
| 2015 | xmlListPtr ref_list = ((xmlRemoveMemoPtr)user)->l; |
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 | if (attr0 == attr1) { /* Matched: remove and terminate walk */ |
| 2018 | xmlListRemoveFirst(ref_list, (void *)data); |
| 2019 | return 0; |
| 2020 | } |
| 2021 | return 1; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2022 | } |
| 2023 | |
| 2024 | /** |
| 2025 | * xmlAddRef: |
| 2026 | * @ctxt: the validation context |
| 2027 | * @doc: pointer to the document |
| 2028 | * @value: the value name |
| 2029 | * @attr: the attribute holding the Ref |
| 2030 | * |
| 2031 | * Register a new ref declaration |
| 2032 | * |
| 2033 | * Returns NULL if not, othervise the new xmlRefPtr |
| 2034 | */ |
| 2035 | xmlRefPtr |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 2036 | xmlAddRef(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDocPtr doc, const xmlChar *value, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2037 | xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2038 | xmlRefPtr ret; |
| 2039 | xmlRefTablePtr table; |
| 2040 | xmlListPtr ref_list; |
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 | if (doc == NULL) { |
| 2043 | xmlGenericError(xmlGenericErrorContext, |
| 2044 | "xmlAddRefDecl: doc == NULL\n"); |
| 2045 | return(NULL); |
| 2046 | } |
| 2047 | if (value == NULL) { |
| 2048 | xmlGenericError(xmlGenericErrorContext, |
| 2049 | "xmlAddRefDecl: value == NULL\n"); |
| 2050 | return(NULL); |
| 2051 | } |
| 2052 | if (attr == NULL) { |
| 2053 | xmlGenericError(xmlGenericErrorContext, |
| 2054 | "xmlAddRefDecl: attr == NULL\n"); |
| 2055 | return(NULL); |
| 2056 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2057 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2058 | /* |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2059 | * Create the Ref table if needed. |
| 2060 | */ |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2061 | table = (xmlRefTablePtr) doc->refs; |
| 2062 | if (table == NULL) |
| 2063 | doc->refs = table = xmlCreateRefTable(); |
| 2064 | if (table == NULL) { |
| 2065 | xmlGenericError(xmlGenericErrorContext, |
| 2066 | "xmlAddRef: Table creation failed!\n"); |
| 2067 | return(NULL); |
| 2068 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2069 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2070 | ret = (xmlRefPtr) xmlMalloc(sizeof(xmlRef)); |
| 2071 | if (ret == NULL) { |
| 2072 | xmlGenericError(xmlGenericErrorContext, |
| 2073 | "xmlAddRef: out of memory\n"); |
| 2074 | return(NULL); |
| 2075 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2076 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2077 | /* |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2078 | * fill the structure. |
| 2079 | */ |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2080 | ret->value = xmlStrdup(value); |
| 2081 | ret->attr = attr; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2082 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2083 | /* To add a reference :- |
| 2084 | * References are maintained as a list of references, |
| 2085 | * Lookup the entry, if no entry create new nodelist |
| 2086 | * Add the owning node to the NodeList |
| 2087 | * Return the ref |
| 2088 | */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2089 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2090 | if (NULL == (ref_list = xmlHashLookup(table, value))) { |
| 2091 | if (NULL == (ref_list = xmlListCreate(xmlFreeRef, NULL))) { |
| 2092 | xmlGenericError(xmlGenericErrorContext, |
| 2093 | "xmlAddRef: Reference list creation failed!\n"); |
| 2094 | return(NULL); |
| 2095 | } |
| 2096 | if (xmlHashAddEntry(table, value, ref_list) < 0) { |
| 2097 | xmlListDelete(ref_list); |
| 2098 | xmlGenericError(xmlGenericErrorContext, |
| 2099 | "xmlAddRef: Reference list insertion failed!\n"); |
| 2100 | return(NULL); |
| 2101 | } |
| 2102 | } |
| 2103 | xmlListInsert(ref_list, ret); |
| 2104 | return(ret); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2105 | } |
| 2106 | |
| 2107 | /** |
| 2108 | * xmlFreeRefTable: |
| 2109 | * @table: An ref table |
| 2110 | * |
| 2111 | * Deallocate the memory used by an Ref hash table. |
| 2112 | */ |
| 2113 | void |
| 2114 | xmlFreeRefTable(xmlRefTablePtr table) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2115 | xmlHashFree(table, (xmlHashDeallocator) xmlFreeRefList); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2116 | } |
| 2117 | |
| 2118 | /** |
| 2119 | * xmlIsRef: |
| 2120 | * @doc: the document |
| 2121 | * @elem: the element carrying the attribute |
| 2122 | * @attr: the attribute |
| 2123 | * |
| 2124 | * Determine whether an attribute is of type Ref. In case we have Dtd(s) |
| 2125 | * then this is simple, otherwise we use an heuristic: name Ref (upper |
| 2126 | * or lowercase). |
| 2127 | * |
| 2128 | * Returns 0 or 1 depending on the lookup result |
| 2129 | */ |
| 2130 | int |
| 2131 | xmlIsRef(xmlDocPtr doc, xmlNodePtr elem, xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2132 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) { |
| 2133 | return(0); |
| 2134 | } else if (doc->type == XML_HTML_DOCUMENT_NODE) { |
| 2135 | /* TODO @@@ */ |
| 2136 | return(0); |
| 2137 | } else { |
| 2138 | xmlAttributePtr attrDecl; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2139 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2140 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, attr->name); |
| 2141 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2142 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 2143 | elem->name, attr->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2144 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2145 | if ((attrDecl != NULL) && |
| 2146 | (attrDecl->atype == XML_ATTRIBUTE_IDREF || |
| 2147 | attrDecl->atype == XML_ATTRIBUTE_IDREFS)) |
| 2148 | return(1); |
| 2149 | } |
| 2150 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2151 | } |
| 2152 | |
| 2153 | /** |
| 2154 | * xmlRemoveRef |
| 2155 | * @doc: the document |
| 2156 | * @attr: the attribute |
| 2157 | * |
| 2158 | * Remove the given attribute from the Ref table maintained internally. |
| 2159 | * |
| 2160 | * Returns -1 if the lookup failed and 0 otherwise |
| 2161 | */ |
| 2162 | int |
| 2163 | xmlRemoveRef(xmlDocPtr doc, xmlAttrPtr attr) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2164 | xmlListPtr ref_list; |
| 2165 | xmlRefTablePtr table; |
| 2166 | xmlChar *ID; |
| 2167 | xmlRemoveMemo target; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2168 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2169 | if (doc == NULL) return(-1); |
| 2170 | if (attr == NULL) return(-1); |
| 2171 | table = (xmlRefTablePtr) doc->refs; |
| 2172 | if (table == NULL) |
| 2173 | return(-1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2174 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2175 | if (attr == NULL) |
| 2176 | return(-1); |
| 2177 | ID = xmlNodeListGetString(doc, attr->children, 1); |
| 2178 | if (ID == NULL) |
| 2179 | return(-1); |
| 2180 | ref_list = xmlHashLookup(table, ID); |
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(ref_list == NULL) { |
| 2183 | xmlFree(ID); |
| 2184 | return (-1); |
| 2185 | } |
| 2186 | /* At this point, ref_list refers to a list of references which |
| 2187 | * have the same key as the supplied attr. Our list of references |
| 2188 | * is ordered by reference address and we don't have that information |
| 2189 | * here to use when removing. We'll have to walk the list and |
| 2190 | * check for a matching attribute, when we find one stop the walk |
| 2191 | * and remove the entry. |
| 2192 | * The list is ordered by reference, so that means we don't have the |
| 2193 | * key. Passing the list and the reference to the walker means we |
| 2194 | * will have enough data to be able to remove the entry. |
| 2195 | */ |
| 2196 | target.l = ref_list; |
| 2197 | target.ap = attr; |
| 2198 | |
| 2199 | /* Remove the supplied attr from our list */ |
| 2200 | xmlListWalk(ref_list, xmlWalkRemoveRef, &target); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2201 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2202 | /*If the list is empty then remove the list entry in the hash */ |
| 2203 | if (xmlListEmpty(ref_list)) |
| 2204 | xmlHashUpdateEntry(table, ID, NULL, (xmlHashDeallocator) |
| 2205 | xmlFreeRefList); |
| 2206 | xmlFree(ID); |
| 2207 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2208 | } |
| 2209 | |
| 2210 | /** |
| 2211 | * xmlGetRefs: |
| 2212 | * @doc: pointer to the document |
| 2213 | * @ID: the ID value |
| 2214 | * |
| 2215 | * Find the set of references for the supplied ID. |
| 2216 | * |
| 2217 | * Returns NULL if not found, otherwise node set for the ID. |
| 2218 | */ |
| 2219 | xmlListPtr |
| 2220 | xmlGetRefs(xmlDocPtr doc, const xmlChar *ID) { |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2221 | xmlRefTablePtr table; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2222 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2223 | if (doc == NULL) { |
| 2224 | xmlGenericError(xmlGenericErrorContext, "xmlGetRef: doc == NULL\n"); |
| 2225 | return(NULL); |
| 2226 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2227 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2228 | if (ID == NULL) { |
| 2229 | xmlGenericError(xmlGenericErrorContext, "xmlGetRef: ID == NULL\n"); |
| 2230 | return(NULL); |
| 2231 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2232 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2233 | table = (xmlRefTablePtr) doc->refs; |
| 2234 | if (table == NULL) |
| 2235 | return(NULL); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2236 | |
Daniel Veillard | 3772192 | 2001-05-04 15:21:12 +0000 | [diff] [blame] | 2237 | return (xmlHashLookup(table, ID)); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2238 | } |
| 2239 | |
| 2240 | /************************************************************************ |
| 2241 | * * |
| 2242 | * Routines for validity checking * |
| 2243 | * * |
| 2244 | ************************************************************************/ |
| 2245 | |
| 2246 | /** |
| 2247 | * xmlGetDtdElementDesc: |
| 2248 | * @dtd: a pointer to the DtD to search |
| 2249 | * @name: the element name |
| 2250 | * |
| 2251 | * Search the Dtd for the description of this element |
| 2252 | * |
| 2253 | * returns the xmlElementPtr if found or NULL |
| 2254 | */ |
| 2255 | |
| 2256 | xmlElementPtr |
| 2257 | xmlGetDtdElementDesc(xmlDtdPtr dtd, const xmlChar *name) { |
| 2258 | xmlElementTablePtr table; |
| 2259 | xmlElementPtr cur; |
| 2260 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2261 | |
| 2262 | if (dtd == NULL) return(NULL); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2263 | if (dtd->elements == NULL) |
| 2264 | return(NULL); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2265 | table = (xmlElementTablePtr) dtd->elements; |
| 2266 | |
| 2267 | uqname = xmlSplitQName2(name, &prefix); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2268 | if (uqname != NULL) |
| 2269 | name = uqname; |
| 2270 | cur = xmlHashLookup2(table, name, prefix); |
| 2271 | if (prefix != NULL) xmlFree(prefix); |
| 2272 | if (uqname != NULL) xmlFree(uqname); |
| 2273 | return(cur); |
| 2274 | } |
| 2275 | /** |
| 2276 | * xmlGetDtdElementDesc2: |
| 2277 | * @dtd: a pointer to the DtD to search |
| 2278 | * @name: the element name |
| 2279 | * @create: create an empty description if not found |
| 2280 | * |
| 2281 | * Search the Dtd for the description of this element |
| 2282 | * |
| 2283 | * returns the xmlElementPtr if found or NULL |
| 2284 | */ |
| 2285 | |
| 2286 | xmlElementPtr |
| 2287 | xmlGetDtdElementDesc2(xmlDtdPtr dtd, const xmlChar *name, int create) { |
| 2288 | xmlElementTablePtr table; |
| 2289 | xmlElementPtr cur; |
| 2290 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2291 | |
| 2292 | if (dtd == NULL) return(NULL); |
| 2293 | if (dtd->elements == NULL) { |
| 2294 | if (!create) |
| 2295 | return(NULL); |
| 2296 | /* |
| 2297 | * Create the Element table if needed. |
| 2298 | */ |
| 2299 | table = (xmlElementTablePtr) dtd->elements; |
| 2300 | if (table == NULL) { |
| 2301 | table = xmlCreateElementTable(); |
| 2302 | dtd->elements = (void *) table; |
| 2303 | } |
| 2304 | if (table == NULL) { |
| 2305 | xmlGenericError(xmlGenericErrorContext, |
| 2306 | "xmlGetDtdElementDesc: Table creation failed!\n"); |
| 2307 | return(NULL); |
| 2308 | } |
| 2309 | } |
| 2310 | table = (xmlElementTablePtr) dtd->elements; |
| 2311 | |
| 2312 | uqname = xmlSplitQName2(name, &prefix); |
| 2313 | if (uqname != NULL) |
| 2314 | name = uqname; |
| 2315 | cur = xmlHashLookup2(table, name, prefix); |
| 2316 | if ((cur == NULL) && (create)) { |
| 2317 | cur = (xmlElementPtr) xmlMalloc(sizeof(xmlElement)); |
| 2318 | if (cur == NULL) { |
| 2319 | xmlGenericError(xmlGenericErrorContext, |
| 2320 | "xmlGetDtdElementDesc: out of memory\n"); |
| 2321 | return(NULL); |
| 2322 | } |
| 2323 | memset(cur, 0, sizeof(xmlElement)); |
| 2324 | cur->type = XML_ELEMENT_DECL; |
| 2325 | |
| 2326 | /* |
| 2327 | * fill the structure. |
| 2328 | */ |
| 2329 | cur->name = xmlStrdup(name); |
| 2330 | cur->prefix = xmlStrdup(prefix); |
| 2331 | cur->etype = XML_ELEMENT_TYPE_UNDEFINED; |
| 2332 | |
| 2333 | xmlHashAddEntry2(table, name, prefix, cur); |
| 2334 | } |
| 2335 | if (prefix != NULL) xmlFree(prefix); |
| 2336 | if (uqname != NULL) xmlFree(uqname); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2337 | return(cur); |
| 2338 | } |
| 2339 | |
| 2340 | /** |
| 2341 | * xmlGetDtdQElementDesc: |
| 2342 | * @dtd: a pointer to the DtD to search |
| 2343 | * @name: the element name |
| 2344 | * @prefix: the element namespace prefix |
| 2345 | * |
| 2346 | * Search the Dtd for the description of this element |
| 2347 | * |
| 2348 | * returns the xmlElementPtr if found or NULL |
| 2349 | */ |
| 2350 | |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame] | 2351 | xmlElementPtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2352 | xmlGetDtdQElementDesc(xmlDtdPtr dtd, const xmlChar *name, |
| 2353 | const xmlChar *prefix) { |
| 2354 | xmlElementTablePtr table; |
| 2355 | |
| 2356 | if (dtd == NULL) return(NULL); |
| 2357 | if (dtd->elements == NULL) return(NULL); |
| 2358 | table = (xmlElementTablePtr) dtd->elements; |
| 2359 | |
| 2360 | return(xmlHashLookup2(table, name, prefix)); |
| 2361 | } |
| 2362 | |
| 2363 | /** |
| 2364 | * xmlGetDtdAttrDesc: |
| 2365 | * @dtd: a pointer to the DtD to search |
| 2366 | * @elem: the element name |
| 2367 | * @name: the attribute name |
| 2368 | * |
| 2369 | * Search the Dtd for the description of this attribute on |
| 2370 | * this element. |
| 2371 | * |
| 2372 | * returns the xmlAttributePtr if found or NULL |
| 2373 | */ |
| 2374 | |
| 2375 | xmlAttributePtr |
| 2376 | xmlGetDtdAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name) { |
| 2377 | xmlAttributeTablePtr table; |
| 2378 | xmlAttributePtr cur; |
| 2379 | xmlChar *uqname = NULL, *prefix = NULL; |
| 2380 | |
| 2381 | if (dtd == NULL) return(NULL); |
| 2382 | if (dtd->attributes == NULL) return(NULL); |
| 2383 | |
| 2384 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 2385 | if (table == NULL) |
| 2386 | return(NULL); |
| 2387 | |
| 2388 | uqname = xmlSplitQName2(name, &prefix); |
| 2389 | |
| 2390 | if (uqname != NULL) { |
| 2391 | cur = xmlHashLookup3(table, uqname, prefix, elem); |
| 2392 | if (prefix != NULL) xmlFree(prefix); |
| 2393 | if (uqname != NULL) xmlFree(uqname); |
| 2394 | } else |
| 2395 | cur = xmlHashLookup3(table, name, NULL, elem); |
| 2396 | return(cur); |
| 2397 | } |
| 2398 | |
| 2399 | /** |
| 2400 | * xmlGetDtdQAttrDesc: |
| 2401 | * @dtd: a pointer to the DtD to search |
| 2402 | * @elem: the element name |
| 2403 | * @name: the attribute name |
| 2404 | * @prefix: the attribute namespace prefix |
| 2405 | * |
| 2406 | * Search the Dtd for the description of this qualified attribute on |
| 2407 | * this element. |
| 2408 | * |
| 2409 | * returns the xmlAttributePtr if found or NULL |
| 2410 | */ |
| 2411 | |
Daniel Veillard | 48da910 | 2001-08-07 01:10:10 +0000 | [diff] [blame] | 2412 | xmlAttributePtr |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2413 | xmlGetDtdQAttrDesc(xmlDtdPtr dtd, const xmlChar *elem, const xmlChar *name, |
| 2414 | const xmlChar *prefix) { |
| 2415 | xmlAttributeTablePtr table; |
| 2416 | |
| 2417 | if (dtd == NULL) return(NULL); |
| 2418 | if (dtd->attributes == NULL) return(NULL); |
| 2419 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 2420 | |
| 2421 | return(xmlHashLookup3(table, name, prefix, elem)); |
| 2422 | } |
| 2423 | |
| 2424 | /** |
| 2425 | * xmlGetDtdNotationDesc: |
| 2426 | * @dtd: a pointer to the DtD to search |
| 2427 | * @name: the notation name |
| 2428 | * |
| 2429 | * Search the Dtd for the description of this notation |
| 2430 | * |
| 2431 | * returns the xmlNotationPtr if found or NULL |
| 2432 | */ |
| 2433 | |
| 2434 | xmlNotationPtr |
| 2435 | xmlGetDtdNotationDesc(xmlDtdPtr dtd, const xmlChar *name) { |
| 2436 | xmlNotationTablePtr table; |
| 2437 | |
| 2438 | if (dtd == NULL) return(NULL); |
| 2439 | if (dtd->notations == NULL) return(NULL); |
| 2440 | table = (xmlNotationTablePtr) dtd->notations; |
| 2441 | |
| 2442 | return(xmlHashLookup(table, name)); |
| 2443 | } |
| 2444 | |
| 2445 | /** |
| 2446 | * xmlValidateNotationUse: |
| 2447 | * @ctxt: the validation context |
| 2448 | * @doc: the document |
| 2449 | * @notationName: the notation name to check |
| 2450 | * |
| 2451 | * Validate that the given mame match a notation declaration. |
| 2452 | * - [ VC: Notation Declared ] |
| 2453 | * |
| 2454 | * returns 1 if valid or 0 otherwise |
| 2455 | */ |
| 2456 | |
| 2457 | int |
| 2458 | xmlValidateNotationUse(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2459 | const xmlChar *notationName) { |
| 2460 | xmlNotationPtr notaDecl; |
| 2461 | if ((doc == NULL) || (doc->intSubset == NULL)) return(-1); |
| 2462 | |
| 2463 | notaDecl = xmlGetDtdNotationDesc(doc->intSubset, notationName); |
| 2464 | if ((notaDecl == NULL) && (doc->extSubset != NULL)) |
| 2465 | notaDecl = xmlGetDtdNotationDesc(doc->extSubset, notationName); |
| 2466 | |
| 2467 | if (notaDecl == NULL) { |
| 2468 | VERROR(ctxt->userData, "NOTATION %s is not declared\n", |
| 2469 | notationName); |
| 2470 | return(0); |
| 2471 | } |
| 2472 | return(1); |
| 2473 | } |
| 2474 | |
| 2475 | /** |
| 2476 | * xmlIsMixedElement |
| 2477 | * @doc: the document |
| 2478 | * @name: the element name |
| 2479 | * |
| 2480 | * Search in the DtDs whether an element accept Mixed content (or ANY) |
| 2481 | * basically if it is supposed to accept text childs |
| 2482 | * |
| 2483 | * returns 0 if no, 1 if yes, and -1 if no element description is available |
| 2484 | */ |
| 2485 | |
| 2486 | int |
| 2487 | xmlIsMixedElement(xmlDocPtr doc, const xmlChar *name) { |
| 2488 | xmlElementPtr elemDecl; |
| 2489 | |
| 2490 | if ((doc == NULL) || (doc->intSubset == NULL)) return(-1); |
| 2491 | |
| 2492 | elemDecl = xmlGetDtdElementDesc(doc->intSubset, name); |
| 2493 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 2494 | elemDecl = xmlGetDtdElementDesc(doc->extSubset, name); |
| 2495 | if (elemDecl == NULL) return(-1); |
| 2496 | switch (elemDecl->etype) { |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 2497 | case XML_ELEMENT_TYPE_UNDEFINED: |
| 2498 | return(-1); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2499 | case XML_ELEMENT_TYPE_ELEMENT: |
| 2500 | return(0); |
| 2501 | case XML_ELEMENT_TYPE_EMPTY: |
| 2502 | /* |
| 2503 | * return 1 for EMPTY since we want VC error to pop up |
| 2504 | * on <empty> </empty> for example |
| 2505 | */ |
| 2506 | case XML_ELEMENT_TYPE_ANY: |
| 2507 | case XML_ELEMENT_TYPE_MIXED: |
| 2508 | return(1); |
| 2509 | } |
| 2510 | return(1); |
| 2511 | } |
| 2512 | |
| 2513 | /** |
| 2514 | * xmlValidateNameValue: |
| 2515 | * @value: an Name value |
| 2516 | * |
| 2517 | * Validate that the given value match Name production |
| 2518 | * |
| 2519 | * returns 1 if valid or 0 otherwise |
| 2520 | */ |
| 2521 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2522 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2523 | xmlValidateNameValue(const xmlChar *value) { |
| 2524 | const xmlChar *cur; |
| 2525 | |
| 2526 | if (value == NULL) return(0); |
| 2527 | cur = value; |
| 2528 | |
| 2529 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2530 | (*cur != ':')) { |
| 2531 | return(0); |
| 2532 | } |
| 2533 | |
| 2534 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2535 | (*cur == '.') || (*cur == '-') || |
| 2536 | (*cur == '_') || (*cur == ':') || |
| 2537 | (IS_COMBINING(*cur)) || |
| 2538 | (IS_EXTENDER(*cur))) |
| 2539 | cur++; |
| 2540 | |
| 2541 | if (*cur != 0) return(0); |
| 2542 | |
| 2543 | return(1); |
| 2544 | } |
| 2545 | |
| 2546 | /** |
| 2547 | * xmlValidateNamesValue: |
| 2548 | * @value: an Names value |
| 2549 | * |
| 2550 | * Validate that the given value match Names production |
| 2551 | * |
| 2552 | * returns 1 if valid or 0 otherwise |
| 2553 | */ |
| 2554 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2555 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2556 | xmlValidateNamesValue(const xmlChar *value) { |
| 2557 | const xmlChar *cur; |
| 2558 | |
| 2559 | if (value == NULL) return(0); |
| 2560 | cur = value; |
| 2561 | |
| 2562 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2563 | (*cur != ':')) { |
| 2564 | return(0); |
| 2565 | } |
| 2566 | |
| 2567 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2568 | (*cur == '.') || (*cur == '-') || |
| 2569 | (*cur == '_') || (*cur == ':') || |
| 2570 | (IS_COMBINING(*cur)) || |
| 2571 | (IS_EXTENDER(*cur))) |
| 2572 | cur++; |
| 2573 | |
| 2574 | while (IS_BLANK(*cur)) { |
| 2575 | while (IS_BLANK(*cur)) cur++; |
| 2576 | |
| 2577 | if (!IS_LETTER(*cur) && (*cur != '_') && |
| 2578 | (*cur != ':')) { |
| 2579 | return(0); |
| 2580 | } |
| 2581 | |
| 2582 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2583 | (*cur == '.') || (*cur == '-') || |
| 2584 | (*cur == '_') || (*cur == ':') || |
| 2585 | (IS_COMBINING(*cur)) || |
| 2586 | (IS_EXTENDER(*cur))) |
| 2587 | cur++; |
| 2588 | } |
| 2589 | |
| 2590 | if (*cur != 0) return(0); |
| 2591 | |
| 2592 | return(1); |
| 2593 | } |
| 2594 | |
| 2595 | /** |
| 2596 | * xmlValidateNmtokenValue: |
| 2597 | * @value: an Mntoken value |
| 2598 | * |
| 2599 | * Validate that the given value match Nmtoken production |
| 2600 | * |
| 2601 | * [ VC: Name Token ] |
| 2602 | * |
| 2603 | * returns 1 if valid or 0 otherwise |
| 2604 | */ |
| 2605 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2606 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2607 | xmlValidateNmtokenValue(const xmlChar *value) { |
| 2608 | const xmlChar *cur; |
| 2609 | |
| 2610 | if (value == NULL) return(0); |
| 2611 | cur = value; |
| 2612 | |
| 2613 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2614 | (*cur != '.') && (*cur != '-') && |
| 2615 | (*cur != '_') && (*cur != ':') && |
| 2616 | (!IS_COMBINING(*cur)) && |
| 2617 | (!IS_EXTENDER(*cur))) |
| 2618 | return(0); |
| 2619 | |
| 2620 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2621 | (*cur == '.') || (*cur == '-') || |
| 2622 | (*cur == '_') || (*cur == ':') || |
| 2623 | (IS_COMBINING(*cur)) || |
| 2624 | (IS_EXTENDER(*cur))) |
| 2625 | cur++; |
| 2626 | |
| 2627 | if (*cur != 0) return(0); |
| 2628 | |
| 2629 | return(1); |
| 2630 | } |
| 2631 | |
| 2632 | /** |
| 2633 | * xmlValidateNmtokensValue: |
| 2634 | * @value: an Mntokens value |
| 2635 | * |
| 2636 | * Validate that the given value match Nmtokens production |
| 2637 | * |
| 2638 | * [ VC: Name Token ] |
| 2639 | * |
| 2640 | * returns 1 if valid or 0 otherwise |
| 2641 | */ |
| 2642 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2643 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2644 | xmlValidateNmtokensValue(const xmlChar *value) { |
| 2645 | const xmlChar *cur; |
| 2646 | |
| 2647 | if (value == NULL) return(0); |
| 2648 | cur = value; |
| 2649 | |
| 2650 | while (IS_BLANK(*cur)) cur++; |
| 2651 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2652 | (*cur != '.') && (*cur != '-') && |
| 2653 | (*cur != '_') && (*cur != ':') && |
| 2654 | (!IS_COMBINING(*cur)) && |
| 2655 | (!IS_EXTENDER(*cur))) |
| 2656 | return(0); |
| 2657 | |
| 2658 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2659 | (*cur == '.') || (*cur == '-') || |
| 2660 | (*cur == '_') || (*cur == ':') || |
| 2661 | (IS_COMBINING(*cur)) || |
| 2662 | (IS_EXTENDER(*cur))) |
| 2663 | cur++; |
| 2664 | |
| 2665 | while (IS_BLANK(*cur)) { |
| 2666 | while (IS_BLANK(*cur)) cur++; |
| 2667 | if (*cur == 0) return(1); |
| 2668 | |
| 2669 | if (!IS_LETTER(*cur) && !IS_DIGIT(*cur) && |
| 2670 | (*cur != '.') && (*cur != '-') && |
| 2671 | (*cur != '_') && (*cur != ':') && |
| 2672 | (!IS_COMBINING(*cur)) && |
| 2673 | (!IS_EXTENDER(*cur))) |
| 2674 | return(0); |
| 2675 | |
| 2676 | while ((IS_LETTER(*cur)) || (IS_DIGIT(*cur)) || |
| 2677 | (*cur == '.') || (*cur == '-') || |
| 2678 | (*cur == '_') || (*cur == ':') || |
| 2679 | (IS_COMBINING(*cur)) || |
| 2680 | (IS_EXTENDER(*cur))) |
| 2681 | cur++; |
| 2682 | } |
| 2683 | |
| 2684 | if (*cur != 0) return(0); |
| 2685 | |
| 2686 | return(1); |
| 2687 | } |
| 2688 | |
| 2689 | /** |
| 2690 | * xmlValidateNotationDecl: |
| 2691 | * @ctxt: the validation context |
| 2692 | * @doc: a document instance |
| 2693 | * @nota: a notation definition |
| 2694 | * |
| 2695 | * Try to validate a single notation definition |
| 2696 | * basically it does the following checks as described by the |
| 2697 | * XML-1.0 recommendation: |
| 2698 | * - it seems that no validity constraing exist on notation declarations |
| 2699 | * But this function get called anyway ... |
| 2700 | * |
| 2701 | * returns 1 if valid or 0 otherwise |
| 2702 | */ |
| 2703 | |
| 2704 | int |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 2705 | xmlValidateNotationDecl(xmlValidCtxtPtr ctxt ATTRIBUTE_UNUSED, xmlDocPtr doc ATTRIBUTE_UNUSED, |
| 2706 | xmlNotationPtr nota ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2707 | int ret = 1; |
| 2708 | |
| 2709 | return(ret); |
| 2710 | } |
| 2711 | |
| 2712 | /** |
| 2713 | * xmlValidateAttributeValue: |
| 2714 | * @type: an attribute type |
| 2715 | * @value: an attribute value |
| 2716 | * |
| 2717 | * Validate that the given attribute value match the proper production |
| 2718 | * |
| 2719 | * [ VC: ID ] |
| 2720 | * Values of type ID must match the Name production.... |
| 2721 | * |
| 2722 | * [ VC: IDREF ] |
| 2723 | * Values of type IDREF must match the Name production, and values |
| 2724 | * of type IDREFS must match Names ... |
| 2725 | * |
| 2726 | * [ VC: Entity Name ] |
| 2727 | * Values of type ENTITY must match the Name production, values |
| 2728 | * of type ENTITIES must match Names ... |
| 2729 | * |
| 2730 | * [ VC: Name Token ] |
| 2731 | * Values of type NMTOKEN must match the Nmtoken production; values |
| 2732 | * of type NMTOKENS must match Nmtokens. |
| 2733 | * |
| 2734 | * returns 1 if valid or 0 otherwise |
| 2735 | */ |
| 2736 | |
| 2737 | int |
| 2738 | xmlValidateAttributeValue(xmlAttributeType type, const xmlChar *value) { |
| 2739 | switch (type) { |
| 2740 | case XML_ATTRIBUTE_ENTITIES: |
| 2741 | case XML_ATTRIBUTE_IDREFS: |
| 2742 | return(xmlValidateNamesValue(value)); |
| 2743 | case XML_ATTRIBUTE_ENTITY: |
| 2744 | case XML_ATTRIBUTE_IDREF: |
| 2745 | case XML_ATTRIBUTE_ID: |
| 2746 | case XML_ATTRIBUTE_NOTATION: |
| 2747 | return(xmlValidateNameValue(value)); |
| 2748 | case XML_ATTRIBUTE_NMTOKENS: |
| 2749 | case XML_ATTRIBUTE_ENUMERATION: |
| 2750 | return(xmlValidateNmtokensValue(value)); |
| 2751 | case XML_ATTRIBUTE_NMTOKEN: |
| 2752 | return(xmlValidateNmtokenValue(value)); |
| 2753 | case XML_ATTRIBUTE_CDATA: |
| 2754 | break; |
| 2755 | } |
| 2756 | return(1); |
| 2757 | } |
| 2758 | |
| 2759 | /** |
| 2760 | * xmlValidateAttributeValue2: |
| 2761 | * @ctxt: the validation context |
| 2762 | * @doc: the document |
| 2763 | * @name: the attribute name (used for error reporting only) |
| 2764 | * @type: the attribute type |
| 2765 | * @value: the attribute value |
| 2766 | * |
| 2767 | * Validate that the given attribute value match a given type. |
| 2768 | * This typically cannot be done before having finished parsing |
| 2769 | * the subsets. |
| 2770 | * |
| 2771 | * [ VC: IDREF ] |
| 2772 | * Values of type IDREF must match one of the declared IDs |
| 2773 | * Values of type IDREFS must match a sequence of the declared IDs |
| 2774 | * each Name must match the value of an ID attribute on some element |
| 2775 | * in the XML document; i.e. IDREF values must match the value of |
| 2776 | * some ID attribute |
| 2777 | * |
| 2778 | * [ VC: Entity Name ] |
| 2779 | * Values of type ENTITY must match one declared entity |
| 2780 | * Values of type ENTITIES must match a sequence of declared entities |
| 2781 | * |
| 2782 | * [ VC: Notation Attributes ] |
| 2783 | * all notation names in the declaration must be declared. |
| 2784 | * |
| 2785 | * returns 1 if valid or 0 otherwise |
| 2786 | */ |
| 2787 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2788 | static int |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2789 | xmlValidateAttributeValue2(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2790 | const xmlChar *name, xmlAttributeType type, const xmlChar *value) { |
| 2791 | int ret = 1; |
| 2792 | switch (type) { |
| 2793 | case XML_ATTRIBUTE_IDREFS: |
| 2794 | case XML_ATTRIBUTE_IDREF: |
| 2795 | case XML_ATTRIBUTE_ID: |
| 2796 | case XML_ATTRIBUTE_NMTOKENS: |
| 2797 | case XML_ATTRIBUTE_ENUMERATION: |
| 2798 | case XML_ATTRIBUTE_NMTOKEN: |
| 2799 | case XML_ATTRIBUTE_CDATA: |
| 2800 | break; |
| 2801 | case XML_ATTRIBUTE_ENTITY: { |
| 2802 | xmlEntityPtr ent; |
| 2803 | |
| 2804 | ent = xmlGetDocEntity(doc, value); |
| 2805 | if (ent == NULL) { |
| 2806 | VERROR(ctxt->userData, |
| 2807 | "ENTITY attribute %s reference an unknown entity \"%s\"\n", |
| 2808 | name, value); |
| 2809 | ret = 0; |
| 2810 | } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) { |
| 2811 | VERROR(ctxt->userData, |
| 2812 | "ENTITY attribute %s reference an entity \"%s\" of wrong type\n", |
| 2813 | name, value); |
| 2814 | ret = 0; |
| 2815 | } |
| 2816 | break; |
| 2817 | } |
| 2818 | case XML_ATTRIBUTE_ENTITIES: { |
| 2819 | xmlChar *dup, *nam = NULL, *cur, save; |
| 2820 | xmlEntityPtr ent; |
| 2821 | |
| 2822 | dup = xmlStrdup(value); |
| 2823 | if (dup == NULL) |
| 2824 | return(0); |
| 2825 | cur = dup; |
| 2826 | while (*cur != 0) { |
| 2827 | nam = cur; |
| 2828 | while ((*cur != 0) && (!IS_BLANK(*cur))) cur++; |
| 2829 | save = *cur; |
| 2830 | *cur = 0; |
| 2831 | ent = xmlGetDocEntity(doc, nam); |
| 2832 | if (ent == NULL) { |
| 2833 | VERROR(ctxt->userData, |
| 2834 | "ENTITIES attribute %s reference an unknown entity \"%s\"\n", |
| 2835 | name, nam); |
| 2836 | ret = 0; |
| 2837 | } else if (ent->etype != XML_EXTERNAL_GENERAL_UNPARSED_ENTITY) { |
| 2838 | VERROR(ctxt->userData, |
| 2839 | "ENTITIES attribute %s reference an entity \"%s\" of wrong type\n", |
| 2840 | name, nam); |
| 2841 | ret = 0; |
| 2842 | } |
| 2843 | if (save == 0) |
| 2844 | break; |
| 2845 | *cur = save; |
| 2846 | while (IS_BLANK(*cur)) cur++; |
| 2847 | } |
| 2848 | xmlFree(dup); |
| 2849 | break; |
| 2850 | } |
| 2851 | case XML_ATTRIBUTE_NOTATION: { |
| 2852 | xmlNotationPtr nota; |
| 2853 | |
| 2854 | nota = xmlGetDtdNotationDesc(doc->intSubset, value); |
| 2855 | if ((nota == NULL) && (doc->extSubset != NULL)) |
| 2856 | nota = xmlGetDtdNotationDesc(doc->extSubset, value); |
| 2857 | |
| 2858 | if (nota == NULL) { |
| 2859 | VERROR(ctxt->userData, |
| 2860 | "NOTATION attribute %s reference an unknown notation \"%s\"\n", |
| 2861 | name, value); |
| 2862 | ret = 0; |
| 2863 | } |
| 2864 | break; |
| 2865 | } |
| 2866 | } |
| 2867 | return(ret); |
| 2868 | } |
| 2869 | |
| 2870 | /** |
| 2871 | * xmlValidNormalizeAttributeValue: |
| 2872 | * @doc: the document |
| 2873 | * @elem: the parent |
| 2874 | * @name: the attribute name |
| 2875 | * @value: the attribute value |
| 2876 | * |
| 2877 | * Does the validation related extra step of the normalization of attribute |
| 2878 | * values: |
| 2879 | * |
| 2880 | * If the declared value is not CDATA, then the XML processor must further |
| 2881 | * process the normalized attribute value by discarding any leading and |
| 2882 | * trailing space (#x20) characters, and by replacing sequences of space |
| 2883 | * (#x20) characters by single space (#x20) character. |
| 2884 | * |
| 2885 | * returns a new normalized string if normalization is needed, NULL otherwise |
| 2886 | * the caller must free the returned value. |
| 2887 | */ |
| 2888 | |
| 2889 | xmlChar * |
| 2890 | xmlValidNormalizeAttributeValue(xmlDocPtr doc, xmlNodePtr elem, |
| 2891 | const xmlChar *name, const xmlChar *value) { |
| 2892 | xmlChar *ret, *dst; |
| 2893 | const xmlChar *src; |
| 2894 | xmlAttributePtr attrDecl = NULL; |
| 2895 | |
| 2896 | if (doc == NULL) return(NULL); |
| 2897 | if (elem == NULL) return(NULL); |
| 2898 | if (name == NULL) return(NULL); |
| 2899 | if (value == NULL) return(NULL); |
| 2900 | |
| 2901 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 2902 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2903 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 2904 | elem->ns->prefix, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2905 | qname[sizeof(qname) - 1] = 0; |
| 2906 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, qname, name); |
| 2907 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2908 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, qname, name); |
| 2909 | } |
| 2910 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, elem->name, name); |
| 2911 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 2912 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, elem->name, name); |
| 2913 | |
| 2914 | if (attrDecl == NULL) |
| 2915 | return(NULL); |
| 2916 | if (attrDecl->atype == XML_ATTRIBUTE_CDATA) |
| 2917 | return(NULL); |
| 2918 | |
| 2919 | ret = xmlStrdup(value); |
| 2920 | if (ret == NULL) |
| 2921 | return(NULL); |
| 2922 | src = value; |
| 2923 | dst = ret; |
| 2924 | while (*src == 0x20) src++; |
| 2925 | while (*src != 0) { |
| 2926 | if (*src == 0x20) { |
| 2927 | while (*src == 0x20) src++; |
| 2928 | if (*src != 0) |
| 2929 | *dst++ = 0x20; |
| 2930 | } else { |
| 2931 | *dst++ = *src++; |
| 2932 | } |
| 2933 | } |
| 2934 | *dst = 0; |
| 2935 | return(ret); |
| 2936 | } |
| 2937 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 2938 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2939 | xmlValidateAttributeIdCallback(xmlAttributePtr attr, int *count, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 2940 | const xmlChar* name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 2941 | if (attr->atype == XML_ATTRIBUTE_ID) (*count)++; |
| 2942 | } |
| 2943 | |
| 2944 | /** |
| 2945 | * xmlValidateAttributeDecl: |
| 2946 | * @ctxt: the validation context |
| 2947 | * @doc: a document instance |
| 2948 | * @attr: an attribute definition |
| 2949 | * |
| 2950 | * Try to validate a single attribute definition |
| 2951 | * basically it does the following checks as described by the |
| 2952 | * XML-1.0 recommendation: |
| 2953 | * - [ VC: Attribute Default Legal ] |
| 2954 | * - [ VC: Enumeration ] |
| 2955 | * - [ VC: ID Attribute Default ] |
| 2956 | * |
| 2957 | * The ID/IDREF uniqueness and matching are done separately |
| 2958 | * |
| 2959 | * returns 1 if valid or 0 otherwise |
| 2960 | */ |
| 2961 | |
| 2962 | int |
| 2963 | xmlValidateAttributeDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 2964 | xmlAttributePtr attr) { |
| 2965 | int ret = 1; |
| 2966 | int val; |
| 2967 | CHECK_DTD; |
| 2968 | if(attr == NULL) return(1); |
| 2969 | |
| 2970 | /* Attribute Default Legal */ |
| 2971 | /* Enumeration */ |
| 2972 | if (attr->defaultValue != NULL) { |
| 2973 | val = xmlValidateAttributeValue(attr->atype, attr->defaultValue); |
| 2974 | if (val == 0) { |
| 2975 | VERROR(ctxt->userData, |
| 2976 | "Syntax of default value for attribute %s on %s is not valid\n", |
| 2977 | attr->name, attr->elem); |
| 2978 | } |
| 2979 | ret &= val; |
| 2980 | } |
| 2981 | |
| 2982 | /* ID Attribute Default */ |
| 2983 | if ((attr->atype == XML_ATTRIBUTE_ID)&& |
| 2984 | (attr->def != XML_ATTRIBUTE_IMPLIED) && |
| 2985 | (attr->def != XML_ATTRIBUTE_REQUIRED)) { |
| 2986 | VERROR(ctxt->userData, |
| 2987 | "ID attribute %s on %s is not valid must be #IMPLIED or #REQUIRED\n", |
| 2988 | attr->name, attr->elem); |
| 2989 | ret = 0; |
| 2990 | } |
| 2991 | |
| 2992 | /* One ID per Element Type */ |
| 2993 | if (attr->atype == XML_ATTRIBUTE_ID) { |
| 2994 | int nbId; |
| 2995 | |
| 2996 | /* the trick is taht we parse DtD as their own internal subset */ |
| 2997 | xmlElementPtr elem = xmlGetDtdElementDesc(doc->intSubset, |
| 2998 | attr->elem); |
| 2999 | if (elem != NULL) { |
| 3000 | nbId = xmlScanIDAttributeDecl(NULL, elem); |
| 3001 | } else { |
| 3002 | xmlAttributeTablePtr table; |
| 3003 | |
| 3004 | /* |
| 3005 | * The attribute may be declared in the internal subset and the |
| 3006 | * element in the external subset. |
| 3007 | */ |
| 3008 | nbId = 0; |
| 3009 | table = (xmlAttributeTablePtr) doc->intSubset->attributes; |
| 3010 | xmlHashScan3(table, NULL, NULL, attr->elem, (xmlHashScanner) |
| 3011 | xmlValidateAttributeIdCallback, &nbId); |
| 3012 | } |
| 3013 | if (nbId > 1) { |
| 3014 | VERROR(ctxt->userData, |
| 3015 | "Element %s has %d ID attribute defined in the internal subset : %s\n", |
| 3016 | attr->elem, nbId, attr->name); |
| 3017 | } else if (doc->extSubset != NULL) { |
| 3018 | int extId = 0; |
| 3019 | elem = xmlGetDtdElementDesc(doc->extSubset, attr->elem); |
| 3020 | if (elem != NULL) { |
| 3021 | extId = xmlScanIDAttributeDecl(NULL, elem); |
| 3022 | } |
| 3023 | if (extId > 1) { |
| 3024 | VERROR(ctxt->userData, |
| 3025 | "Element %s has %d ID attribute defined in the external subset : %s\n", |
| 3026 | attr->elem, extId, attr->name); |
| 3027 | } else if (extId + nbId > 1) { |
| 3028 | VERROR(ctxt->userData, |
| 3029 | "Element %s has ID attributes defined in the internal and external subset : %s\n", |
| 3030 | attr->elem, attr->name); |
| 3031 | } |
| 3032 | } |
| 3033 | } |
| 3034 | |
| 3035 | /* Validity Constraint: Enumeration */ |
| 3036 | if ((attr->defaultValue != NULL) && (attr->tree != NULL)) { |
| 3037 | xmlEnumerationPtr tree = attr->tree; |
| 3038 | while (tree != NULL) { |
| 3039 | if (xmlStrEqual(tree->name, attr->defaultValue)) break; |
| 3040 | tree = tree->next; |
| 3041 | } |
| 3042 | if (tree == NULL) { |
| 3043 | VERROR(ctxt->userData, |
| 3044 | "Default value \"%s\" for attribute %s on %s is not among the enumerated set\n", |
| 3045 | attr->defaultValue, attr->name, attr->elem); |
| 3046 | ret = 0; |
| 3047 | } |
| 3048 | } |
| 3049 | |
| 3050 | return(ret); |
| 3051 | } |
| 3052 | |
| 3053 | /** |
| 3054 | * xmlValidateElementDecl: |
| 3055 | * @ctxt: the validation context |
| 3056 | * @doc: a document instance |
| 3057 | * @elem: an element definition |
| 3058 | * |
| 3059 | * Try to validate a single element definition |
| 3060 | * basically it does the following checks as described by the |
| 3061 | * XML-1.0 recommendation: |
| 3062 | * - [ VC: One ID per Element Type ] |
| 3063 | * - [ VC: No Duplicate Types ] |
| 3064 | * - [ VC: Unique Element Type Declaration ] |
| 3065 | * |
| 3066 | * returns 1 if valid or 0 otherwise |
| 3067 | */ |
| 3068 | |
| 3069 | int |
| 3070 | xmlValidateElementDecl(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3071 | xmlElementPtr elem) { |
| 3072 | int ret = 1; |
| 3073 | xmlElementPtr tst; |
| 3074 | |
| 3075 | CHECK_DTD; |
| 3076 | |
| 3077 | if (elem == NULL) return(1); |
| 3078 | |
| 3079 | /* No Duplicate Types */ |
| 3080 | if (elem->etype == XML_ELEMENT_TYPE_MIXED) { |
| 3081 | xmlElementContentPtr cur, next; |
| 3082 | const xmlChar *name; |
| 3083 | |
| 3084 | cur = elem->content; |
| 3085 | while (cur != NULL) { |
| 3086 | if (cur->type != XML_ELEMENT_CONTENT_OR) break; |
| 3087 | if (cur->c1 == NULL) break; |
| 3088 | if (cur->c1->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3089 | name = cur->c1->name; |
| 3090 | next = cur->c2; |
| 3091 | while (next != NULL) { |
| 3092 | if (next->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3093 | if (xmlStrEqual(next->name, name)) { |
| 3094 | VERROR(ctxt->userData, |
| 3095 | "Definition of %s has duplicate references of %s\n", |
| 3096 | elem->name, name); |
| 3097 | ret = 0; |
| 3098 | } |
| 3099 | break; |
| 3100 | } |
| 3101 | if (next->c1 == NULL) break; |
| 3102 | if (next->c1->type != XML_ELEMENT_CONTENT_ELEMENT) break; |
| 3103 | if (xmlStrEqual(next->c1->name, name)) { |
| 3104 | VERROR(ctxt->userData, |
| 3105 | "Definition of %s has duplicate references of %s\n", |
| 3106 | elem->name, name); |
| 3107 | ret = 0; |
| 3108 | } |
| 3109 | next = next->c2; |
| 3110 | } |
| 3111 | } |
| 3112 | cur = cur->c2; |
| 3113 | } |
| 3114 | } |
| 3115 | |
| 3116 | /* VC: Unique Element Type Declaration */ |
| 3117 | tst = xmlGetDtdElementDesc(doc->intSubset, elem->name); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3118 | if ((tst != NULL ) && (tst != elem) && |
| 3119 | (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3120 | VERROR(ctxt->userData, "Redefinition of element %s\n", |
| 3121 | elem->name); |
| 3122 | ret = 0; |
| 3123 | } |
| 3124 | tst = xmlGetDtdElementDesc(doc->extSubset, elem->name); |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3125 | if ((tst != NULL ) && (tst != elem) && |
| 3126 | (tst->etype != XML_ELEMENT_TYPE_UNDEFINED)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3127 | VERROR(ctxt->userData, "Redefinition of element %s\n", |
| 3128 | elem->name); |
| 3129 | ret = 0; |
| 3130 | } |
| 3131 | |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3132 | /* One ID per Element Type |
| 3133 | * already done when registering the attribute |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3134 | if (xmlScanIDAttributeDecl(ctxt, elem) > 1) { |
| 3135 | ret = 0; |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 3136 | } */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3137 | return(ret); |
| 3138 | } |
| 3139 | |
| 3140 | /** |
| 3141 | * xmlValidateOneAttribute: |
| 3142 | * @ctxt: the validation context |
| 3143 | * @doc: a document instance |
| 3144 | * @elem: an element instance |
| 3145 | * @attr: an attribute instance |
| 3146 | * @value: the attribute value (without entities processing) |
| 3147 | * |
| 3148 | * Try to validate a single attribute for an element |
| 3149 | * basically it does the following checks as described by the |
| 3150 | * XML-1.0 recommendation: |
| 3151 | * - [ VC: Attribute Value Type ] |
| 3152 | * - [ VC: Fixed Attribute Default ] |
| 3153 | * - [ VC: Entity Name ] |
| 3154 | * - [ VC: Name Token ] |
| 3155 | * - [ VC: ID ] |
| 3156 | * - [ VC: IDREF ] |
| 3157 | * - [ VC: Entity Name ] |
| 3158 | * - [ VC: Notation Attributes ] |
| 3159 | * |
| 3160 | * The ID/IDREF uniqueness and matching are done separately |
| 3161 | * |
| 3162 | * returns 1 if valid or 0 otherwise |
| 3163 | */ |
| 3164 | |
| 3165 | int |
| 3166 | xmlValidateOneAttribute(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3167 | xmlNodePtr elem, xmlAttrPtr attr, const xmlChar *value) { |
| 3168 | /* xmlElementPtr elemDecl; */ |
| 3169 | xmlAttributePtr attrDecl = NULL; |
| 3170 | int val; |
| 3171 | int ret = 1; |
| 3172 | |
| 3173 | CHECK_DTD; |
| 3174 | if ((elem == NULL) || (elem->name == NULL)) return(0); |
| 3175 | if ((attr == NULL) || (attr->name == NULL)) return(0); |
| 3176 | |
| 3177 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 3178 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3179 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 3180 | elem->ns->prefix, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3181 | qname[sizeof(qname) - 1] = 0; |
| 3182 | if (attr->ns != NULL) { |
| 3183 | attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, qname, |
| 3184 | attr->name, attr->ns->prefix); |
| 3185 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3186 | attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, qname, |
| 3187 | attr->name, attr->ns->prefix); |
| 3188 | } else { |
| 3189 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, qname, attr->name); |
| 3190 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3191 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 3192 | qname, attr->name); |
| 3193 | } |
| 3194 | } |
| 3195 | if (attrDecl == NULL) { |
| 3196 | if (attr->ns != NULL) { |
| 3197 | attrDecl = xmlGetDtdQAttrDesc(doc->intSubset, elem->name, |
| 3198 | attr->name, attr->ns->prefix); |
| 3199 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3200 | attrDecl = xmlGetDtdQAttrDesc(doc->extSubset, elem->name, |
| 3201 | attr->name, attr->ns->prefix); |
| 3202 | } else { |
| 3203 | attrDecl = xmlGetDtdAttrDesc(doc->intSubset, |
| 3204 | elem->name, attr->name); |
| 3205 | if ((attrDecl == NULL) && (doc->extSubset != NULL)) |
| 3206 | attrDecl = xmlGetDtdAttrDesc(doc->extSubset, |
| 3207 | elem->name, attr->name); |
| 3208 | } |
| 3209 | } |
| 3210 | |
| 3211 | |
| 3212 | /* Validity Constraint: Attribute Value Type */ |
| 3213 | if (attrDecl == NULL) { |
| 3214 | VERROR(ctxt->userData, |
| 3215 | "No declaration for attribute %s on element %s\n", |
| 3216 | attr->name, elem->name); |
| 3217 | return(0); |
| 3218 | } |
| 3219 | attr->atype = attrDecl->atype; |
| 3220 | |
| 3221 | val = xmlValidateAttributeValue(attrDecl->atype, value); |
| 3222 | if (val == 0) { |
| 3223 | VERROR(ctxt->userData, |
| 3224 | "Syntax of value for attribute %s on %s is not valid\n", |
| 3225 | attr->name, elem->name); |
| 3226 | ret = 0; |
| 3227 | } |
| 3228 | |
| 3229 | /* Validity constraint: Fixed Attribute Default */ |
| 3230 | if (attrDecl->def == XML_ATTRIBUTE_FIXED) { |
| 3231 | if (!xmlStrEqual(value, attrDecl->defaultValue)) { |
| 3232 | VERROR(ctxt->userData, |
| 3233 | "Value for attribute %s on %s is differnt from default \"%s\"\n", |
| 3234 | attr->name, elem->name, attrDecl->defaultValue); |
| 3235 | ret = 0; |
| 3236 | } |
| 3237 | } |
| 3238 | |
| 3239 | /* Validity Constraint: ID uniqueness */ |
| 3240 | if (attrDecl->atype == XML_ATTRIBUTE_ID) { |
| 3241 | if (xmlAddID(ctxt, doc, value, attr) == NULL) |
| 3242 | ret = 0; |
| 3243 | } |
| 3244 | |
| 3245 | if ((attrDecl->atype == XML_ATTRIBUTE_IDREF) || |
| 3246 | (attrDecl->atype == XML_ATTRIBUTE_IDREFS)) { |
| 3247 | if (xmlAddRef(ctxt, doc, value, attr) == NULL) |
| 3248 | ret = 0; |
| 3249 | } |
| 3250 | |
| 3251 | /* Validity Constraint: Notation Attributes */ |
| 3252 | if (attrDecl->atype == XML_ATTRIBUTE_NOTATION) { |
| 3253 | xmlEnumerationPtr tree = attrDecl->tree; |
| 3254 | xmlNotationPtr nota; |
| 3255 | |
| 3256 | /* First check that the given NOTATION was declared */ |
| 3257 | nota = xmlGetDtdNotationDesc(doc->intSubset, value); |
| 3258 | if (nota == NULL) |
| 3259 | nota = xmlGetDtdNotationDesc(doc->extSubset, value); |
| 3260 | |
| 3261 | if (nota == NULL) { |
| 3262 | VERROR(ctxt->userData, |
| 3263 | "Value \"%s\" for attribute %s on %s is not a declared Notation\n", |
| 3264 | value, attr->name, elem->name); |
| 3265 | ret = 0; |
| 3266 | } |
| 3267 | |
| 3268 | /* Second, verify that it's among the list */ |
| 3269 | while (tree != NULL) { |
| 3270 | if (xmlStrEqual(tree->name, value)) break; |
| 3271 | tree = tree->next; |
| 3272 | } |
| 3273 | if (tree == NULL) { |
| 3274 | VERROR(ctxt->userData, |
| 3275 | "Value \"%s\" for attribute %s on %s is not among the enumerated notations\n", |
| 3276 | value, attr->name, elem->name); |
| 3277 | ret = 0; |
| 3278 | } |
| 3279 | } |
| 3280 | |
| 3281 | /* Validity Constraint: Enumeration */ |
| 3282 | if (attrDecl->atype == XML_ATTRIBUTE_ENUMERATION) { |
| 3283 | xmlEnumerationPtr tree = attrDecl->tree; |
| 3284 | while (tree != NULL) { |
| 3285 | if (xmlStrEqual(tree->name, value)) break; |
| 3286 | tree = tree->next; |
| 3287 | } |
| 3288 | if (tree == NULL) { |
| 3289 | VERROR(ctxt->userData, |
| 3290 | "Value \"%s\" for attribute %s on %s is not among the enumerated set\n", |
| 3291 | value, attr->name, elem->name); |
| 3292 | ret = 0; |
| 3293 | } |
| 3294 | } |
| 3295 | |
| 3296 | /* Fixed Attribute Default */ |
| 3297 | if ((attrDecl->def == XML_ATTRIBUTE_FIXED) && |
| 3298 | (!xmlStrEqual(attrDecl->defaultValue, value))) { |
| 3299 | VERROR(ctxt->userData, |
| 3300 | "Value for attribute %s on %s must be \"%s\"\n", |
| 3301 | attr->name, elem->name, attrDecl->defaultValue); |
| 3302 | ret = 0; |
| 3303 | } |
| 3304 | |
| 3305 | /* Extra check for the attribute value */ |
| 3306 | ret &= xmlValidateAttributeValue2(ctxt, doc, attr->name, |
| 3307 | attrDecl->atype, value); |
| 3308 | |
| 3309 | return(ret); |
| 3310 | } |
| 3311 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3312 | /** |
| 3313 | * xmlValidateSkipIgnorable: |
| 3314 | * @ctxt: the validation context |
| 3315 | * @child: the child list |
| 3316 | * |
| 3317 | * Skip ignorable elements w.r.t. the validation process |
| 3318 | * |
| 3319 | * returns the first element to consider for validation of the content model |
| 3320 | */ |
| 3321 | |
| 3322 | static xmlNodePtr |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3323 | xmlValidateSkipIgnorable(xmlNodePtr child) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3324 | while (child != NULL) { |
| 3325 | switch (child->type) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3326 | /* These things are ignored (skipped) during validation. */ |
| 3327 | case XML_PI_NODE: |
| 3328 | case XML_COMMENT_NODE: |
| 3329 | case XML_XINCLUDE_START: |
| 3330 | case XML_XINCLUDE_END: |
| 3331 | child = child->next; |
| 3332 | break; |
| 3333 | case XML_TEXT_NODE: |
| 3334 | if (xmlIsBlankNode(child)) |
| 3335 | child = child->next; |
| 3336 | else |
| 3337 | return(child); |
| 3338 | break; |
| 3339 | /* keep current node */ |
| 3340 | default: |
| 3341 | return(child); |
| 3342 | } |
| 3343 | } |
| 3344 | return(child); |
| 3345 | } |
| 3346 | |
| 3347 | /** |
| 3348 | * xmlValidateElementType: |
| 3349 | * @ctxt: the validation context |
| 3350 | * |
| 3351 | * Try to validate the content model of an element internal function |
| 3352 | * |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3353 | * returns 1 if valid or 0 ,-1 in case of error, -2 if an entity |
| 3354 | * reference is found and -3 if the validation succeeded but |
| 3355 | * the content model is not determinist. |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3356 | */ |
| 3357 | |
| 3358 | static int |
| 3359 | xmlValidateElementType(xmlValidCtxtPtr ctxt) { |
| 3360 | int ret = -1; |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3361 | int determinist = 1; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3362 | |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3363 | NODE = xmlValidateSkipIgnorable(NODE); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3364 | if ((NODE == NULL) && (CONT == NULL)) |
| 3365 | return(1); |
| 3366 | if ((NODE == NULL) && |
| 3367 | ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) || |
| 3368 | (CONT->ocur == XML_ELEMENT_CONTENT_OPT))) { |
| 3369 | return(1); |
| 3370 | } |
| 3371 | if (CONT == NULL) return(-1); |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3372 | if ((NODE != NULL) && (NODE->type == XML_ENTITY_REF_NODE)) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3373 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3374 | |
| 3375 | /* |
| 3376 | * We arrive here when more states need to be examined |
| 3377 | */ |
| 3378 | cont: |
| 3379 | |
| 3380 | /* |
| 3381 | * We just recovered from a rollback generated by a possible |
| 3382 | * epsilon transition, go directly to the analysis phase |
| 3383 | */ |
| 3384 | if (STATE == ROLLBACK_PARENT) { |
| 3385 | DEBUG_VALID_MSG("restaured parent branch"); |
| 3386 | DEBUG_VALID_STATE(NODE, CONT) |
| 3387 | ret = 1; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3388 | goto analyze; |
| 3389 | } |
| 3390 | |
| 3391 | DEBUG_VALID_STATE(NODE, CONT) |
| 3392 | /* |
| 3393 | * we may have to save a backup state here. This is the equivalent |
| 3394 | * of handling epsilon transition in NFAs. |
| 3395 | */ |
Daniel Veillard | e62d36c | 2001-05-15 08:53:16 +0000 | [diff] [blame] | 3396 | if ((CONT != NULL) && |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3397 | ((CONT->ocur == XML_ELEMENT_CONTENT_MULT) || |
Daniel Veillard | ca1f172 | 2001-04-20 15:47:35 +0000 | [diff] [blame] | 3398 | (CONT->ocur == XML_ELEMENT_CONTENT_OPT) || |
| 3399 | ((CONT->ocur == XML_ELEMENT_CONTENT_PLUS) && (OCCURENCE)))) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3400 | DEBUG_VALID_MSG("saving parent branch"); |
| 3401 | vstateVPush(ctxt, CONT, NODE, DEPTH, OCCURS, ROLLBACK_PARENT); |
| 3402 | } |
| 3403 | |
| 3404 | |
| 3405 | /* |
| 3406 | * Check first if the content matches |
| 3407 | */ |
| 3408 | switch (CONT->type) { |
| 3409 | case XML_ELEMENT_CONTENT_PCDATA: |
| 3410 | if (NODE == NULL) { |
| 3411 | DEBUG_VALID_MSG("pcdata failed no node"); |
| 3412 | ret = 0; |
| 3413 | break; |
| 3414 | } |
| 3415 | if (NODE->type == XML_TEXT_NODE) { |
| 3416 | DEBUG_VALID_MSG("pcdata found, skip to next"); |
| 3417 | /* |
| 3418 | * go to next element in the content model |
| 3419 | * skipping ignorable elems |
| 3420 | */ |
| 3421 | do { |
| 3422 | NODE = NODE->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3423 | NODE = xmlValidateSkipIgnorable(NODE); |
| 3424 | if ((NODE != NULL) && |
| 3425 | (NODE->type == XML_ENTITY_REF_NODE)) |
| 3426 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3427 | } while ((NODE != NULL) && |
| 3428 | ((NODE->type != XML_ELEMENT_NODE) && |
| 3429 | (NODE->type != XML_TEXT_NODE))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3430 | ret = 1; |
| 3431 | break; |
| 3432 | } else { |
| 3433 | DEBUG_VALID_MSG("pcdata failed"); |
| 3434 | ret = 0; |
| 3435 | break; |
| 3436 | } |
| 3437 | break; |
| 3438 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 3439 | if (NODE == NULL) { |
| 3440 | DEBUG_VALID_MSG("element failed no node"); |
| 3441 | ret = 0; |
| 3442 | break; |
| 3443 | } |
Daniel Veillard | 8bdd220 | 2001-06-11 12:47:59 +0000 | [diff] [blame] | 3444 | ret = ((NODE->type == XML_ELEMENT_NODE) && |
| 3445 | (xmlStrEqual(NODE->name, CONT->name))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3446 | if (ret == 1) { |
| 3447 | DEBUG_VALID_MSG("element found, skip to next"); |
| 3448 | /* |
| 3449 | * go to next element in the content model |
| 3450 | * skipping ignorable elems |
| 3451 | */ |
| 3452 | do { |
| 3453 | NODE = NODE->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3454 | NODE = xmlValidateSkipIgnorable(NODE); |
| 3455 | if ((NODE != NULL) && |
| 3456 | (NODE->type == XML_ENTITY_REF_NODE)) |
| 3457 | return(-2); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3458 | } while ((NODE != NULL) && |
| 3459 | ((NODE->type != XML_ELEMENT_NODE) && |
| 3460 | (NODE->type != XML_TEXT_NODE))); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3461 | } else { |
| 3462 | DEBUG_VALID_MSG("element failed"); |
| 3463 | ret = 0; |
| 3464 | break; |
| 3465 | } |
| 3466 | break; |
| 3467 | case XML_ELEMENT_CONTENT_OR: |
| 3468 | /* |
Daniel Veillard | 8534905 | 2001-04-20 13:48:21 +0000 | [diff] [blame] | 3469 | * Small optimization. |
| 3470 | */ |
| 3471 | if (CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 3472 | if ((NODE == NULL) || |
| 3473 | (!xmlStrEqual(NODE->name, CONT->c1->name))) { |
| 3474 | DEPTH++; |
| 3475 | CONT = CONT->c2; |
| 3476 | goto cont; |
| 3477 | } |
| 3478 | } |
| 3479 | |
| 3480 | /* |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3481 | * save the second branch 'or' branch |
| 3482 | */ |
| 3483 | DEBUG_VALID_MSG("saving 'or' branch"); |
Daniel Veillard | 268fd1b | 2001-08-26 18:46:36 +0000 | [diff] [blame] | 3484 | vstateVPush(ctxt, CONT->c2, NODE, (unsigned char)(DEPTH + 1), |
| 3485 | OCCURS, ROLLBACK_OR); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3486 | |
| 3487 | DEPTH++; |
| 3488 | CONT = CONT->c1; |
| 3489 | goto cont; |
| 3490 | case XML_ELEMENT_CONTENT_SEQ: |
Daniel Veillard | 1d04767 | 2001-06-09 16:41:01 +0000 | [diff] [blame] | 3491 | /* |
| 3492 | * Small optimization. |
| 3493 | */ |
| 3494 | if ((CONT->c1->type == XML_ELEMENT_CONTENT_ELEMENT) && |
| 3495 | ((CONT->c1->ocur == XML_ELEMENT_CONTENT_OPT) || |
| 3496 | (CONT->c1->ocur == XML_ELEMENT_CONTENT_MULT))) { |
| 3497 | if ((NODE == NULL) || |
| 3498 | (!xmlStrEqual(NODE->name, CONT->c1->name))) { |
| 3499 | DEPTH++; |
| 3500 | CONT = CONT->c2; |
| 3501 | goto cont; |
| 3502 | } |
| 3503 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3504 | DEPTH++; |
| 3505 | CONT = CONT->c1; |
| 3506 | goto cont; |
| 3507 | } |
| 3508 | |
| 3509 | /* |
| 3510 | * At this point handle going up in the tree |
| 3511 | */ |
| 3512 | if (ret == -1) { |
| 3513 | DEBUG_VALID_MSG("error found returning"); |
| 3514 | return(ret); |
| 3515 | } |
| 3516 | analyze: |
| 3517 | while (CONT != NULL) { |
| 3518 | /* |
| 3519 | * First do the analysis depending on the occurence model at |
| 3520 | * this level. |
| 3521 | */ |
| 3522 | if (ret == 0) { |
| 3523 | switch (CONT->ocur) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3524 | xmlNodePtr cur; |
| 3525 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3526 | case XML_ELEMENT_CONTENT_ONCE: |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3527 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3528 | DEBUG_VALID_MSG("Once branch failed, rollback"); |
| 3529 | if (vstateVPop(ctxt) < 0 ) { |
| 3530 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3531 | return(0); |
| 3532 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3533 | if (cur != ctxt->vstate->node) |
| 3534 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3535 | goto cont; |
| 3536 | case XML_ELEMENT_CONTENT_PLUS: |
| 3537 | if (OCCURENCE == 0) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3538 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3539 | DEBUG_VALID_MSG("Plus branch failed, rollback"); |
| 3540 | if (vstateVPop(ctxt) < 0 ) { |
| 3541 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3542 | return(0); |
| 3543 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3544 | if (cur != ctxt->vstate->node) |
| 3545 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3546 | goto cont; |
| 3547 | } |
| 3548 | DEBUG_VALID_MSG("Plus branch found"); |
| 3549 | ret = 1; |
| 3550 | break; |
| 3551 | case XML_ELEMENT_CONTENT_MULT: |
| 3552 | #ifdef DEBUG_VALID_ALGO |
| 3553 | if (OCCURENCE == 0) { |
| 3554 | DEBUG_VALID_MSG("Mult branch failed"); |
| 3555 | } else { |
| 3556 | DEBUG_VALID_MSG("Mult branch found"); |
| 3557 | } |
| 3558 | #endif |
| 3559 | ret = 1; |
| 3560 | break; |
| 3561 | case XML_ELEMENT_CONTENT_OPT: |
| 3562 | DEBUG_VALID_MSG("Option branch failed"); |
| 3563 | ret = 1; |
| 3564 | break; |
| 3565 | } |
| 3566 | } else { |
| 3567 | switch (CONT->ocur) { |
| 3568 | case XML_ELEMENT_CONTENT_OPT: |
| 3569 | DEBUG_VALID_MSG("Option branch succeeded"); |
| 3570 | ret = 1; |
| 3571 | break; |
| 3572 | case XML_ELEMENT_CONTENT_ONCE: |
| 3573 | DEBUG_VALID_MSG("Once branch succeeded"); |
| 3574 | ret = 1; |
| 3575 | break; |
| 3576 | case XML_ELEMENT_CONTENT_PLUS: |
| 3577 | if (STATE == ROLLBACK_PARENT) { |
| 3578 | DEBUG_VALID_MSG("Plus branch rollback"); |
| 3579 | ret = 1; |
| 3580 | break; |
| 3581 | } |
| 3582 | if (NODE == NULL) { |
| 3583 | DEBUG_VALID_MSG("Plus branch exhausted"); |
| 3584 | ret = 1; |
| 3585 | break; |
| 3586 | } |
| 3587 | DEBUG_VALID_MSG("Plus branch succeeded, continuing"); |
| 3588 | SET_OCCURENCE; |
| 3589 | goto cont; |
| 3590 | case XML_ELEMENT_CONTENT_MULT: |
| 3591 | if (STATE == ROLLBACK_PARENT) { |
| 3592 | DEBUG_VALID_MSG("Mult branch rollback"); |
| 3593 | ret = 1; |
| 3594 | break; |
| 3595 | } |
| 3596 | if (NODE == NULL) { |
| 3597 | DEBUG_VALID_MSG("Mult branch exhausted"); |
| 3598 | ret = 1; |
| 3599 | break; |
| 3600 | } |
| 3601 | DEBUG_VALID_MSG("Mult branch succeeded, continuing"); |
| 3602 | SET_OCCURENCE; |
| 3603 | goto cont; |
| 3604 | } |
| 3605 | } |
| 3606 | STATE = 0; |
| 3607 | |
| 3608 | /* |
| 3609 | * Then act accordingly at the parent level |
| 3610 | */ |
| 3611 | RESET_OCCURENCE; |
| 3612 | if (CONT->parent == NULL) |
| 3613 | break; |
| 3614 | |
| 3615 | switch (CONT->parent->type) { |
| 3616 | case XML_ELEMENT_CONTENT_PCDATA: |
| 3617 | DEBUG_VALID_MSG("Error: parent pcdata"); |
| 3618 | return(-1); |
| 3619 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 3620 | DEBUG_VALID_MSG("Error: parent element"); |
| 3621 | return(-1); |
| 3622 | case XML_ELEMENT_CONTENT_OR: |
| 3623 | if (ret == 1) { |
| 3624 | DEBUG_VALID_MSG("Or succeeded"); |
| 3625 | CONT = CONT->parent; |
| 3626 | DEPTH--; |
| 3627 | } else { |
| 3628 | DEBUG_VALID_MSG("Or failed"); |
| 3629 | CONT = CONT->parent; |
| 3630 | DEPTH--; |
| 3631 | } |
| 3632 | break; |
| 3633 | case XML_ELEMENT_CONTENT_SEQ: |
| 3634 | if (ret == 0) { |
| 3635 | DEBUG_VALID_MSG("Sequence failed"); |
| 3636 | CONT = CONT->parent; |
| 3637 | DEPTH--; |
| 3638 | } else if (CONT == CONT->parent->c1) { |
| 3639 | DEBUG_VALID_MSG("Sequence testing 2nd branch"); |
| 3640 | CONT = CONT->parent->c2; |
| 3641 | goto cont; |
| 3642 | } else { |
| 3643 | DEBUG_VALID_MSG("Sequence succeeded"); |
| 3644 | CONT = CONT->parent; |
| 3645 | DEPTH--; |
| 3646 | } |
| 3647 | } |
| 3648 | } |
| 3649 | if (NODE != NULL) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3650 | xmlNodePtr cur; |
| 3651 | |
| 3652 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3653 | DEBUG_VALID_MSG("Failed, remaining input, rollback"); |
| 3654 | if (vstateVPop(ctxt) < 0 ) { |
| 3655 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3656 | return(0); |
| 3657 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3658 | if (cur != ctxt->vstate->node) |
| 3659 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3660 | goto cont; |
| 3661 | } |
| 3662 | if (ret == 0) { |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3663 | xmlNodePtr cur; |
| 3664 | |
| 3665 | cur = ctxt->vstate->node; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3666 | DEBUG_VALID_MSG("Failure, rollback"); |
| 3667 | if (vstateVPop(ctxt) < 0 ) { |
| 3668 | DEBUG_VALID_MSG("exhaustion, failed"); |
| 3669 | return(0); |
| 3670 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3671 | if (cur != ctxt->vstate->node) |
| 3672 | determinist = -3; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3673 | goto cont; |
| 3674 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3675 | return(determinist); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3676 | } |
| 3677 | |
| 3678 | /** |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3679 | * xmlSnprintfElements: |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3680 | * @buf: an output buffer |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3681 | * @size: the size of the buffer |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3682 | * @content: An element |
| 3683 | * @glob: 1 if one must print the englobing parenthesis, 0 otherwise |
| 3684 | * |
| 3685 | * This will dump the list of elements to the buffer |
| 3686 | * Intended just for the debug routine |
| 3687 | */ |
| 3688 | static void |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3689 | xmlSnprintfElements(char *buf, int size, xmlNodePtr node, int glob) { |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3690 | xmlNodePtr cur; |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3691 | int len; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3692 | |
| 3693 | if (node == NULL) return; |
| 3694 | if (glob) strcat(buf, "("); |
| 3695 | cur = node; |
| 3696 | while (cur != NULL) { |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3697 | len = strlen(buf); |
| 3698 | if (size - len < 50) { |
| 3699 | if ((size - len > 4) && (buf[len - 1] != '.')) |
| 3700 | strcat(buf, " ..."); |
| 3701 | return; |
| 3702 | } |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3703 | switch (cur->type) { |
| 3704 | case XML_ELEMENT_NODE: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3705 | if (size - len < xmlStrlen(cur->name + 10)) { |
| 3706 | if ((size - len > 4) && (buf[len - 1] != '.')) |
| 3707 | strcat(buf, " ..."); |
| 3708 | return; |
| 3709 | } |
| 3710 | strcat(buf, (char *) cur->name); |
| 3711 | if (cur->next != NULL) |
| 3712 | strcat(buf, " "); |
| 3713 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3714 | case XML_TEXT_NODE: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3715 | if (xmlIsBlankNode(cur)) |
| 3716 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3717 | case XML_CDATA_SECTION_NODE: |
| 3718 | case XML_ENTITY_REF_NODE: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3719 | strcat(buf, "CDATA"); |
| 3720 | if (cur->next != NULL) |
| 3721 | strcat(buf, " "); |
| 3722 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3723 | case XML_ATTRIBUTE_NODE: |
| 3724 | case XML_DOCUMENT_NODE: |
Daniel Veillard | eae522a | 2001-04-23 13:41:34 +0000 | [diff] [blame] | 3725 | #ifdef LIBXML_DOCB_ENABLED |
| 3726 | case XML_DOCB_DOCUMENT_NODE: |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3727 | #endif |
| 3728 | case XML_HTML_DOCUMENT_NODE: |
| 3729 | case XML_DOCUMENT_TYPE_NODE: |
| 3730 | case XML_DOCUMENT_FRAG_NODE: |
| 3731 | case XML_NOTATION_NODE: |
| 3732 | case XML_NAMESPACE_DECL: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3733 | strcat(buf, "???"); |
| 3734 | if (cur->next != NULL) |
| 3735 | strcat(buf, " "); |
| 3736 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3737 | case XML_ENTITY_NODE: |
| 3738 | case XML_PI_NODE: |
| 3739 | case XML_DTD_NODE: |
| 3740 | case XML_COMMENT_NODE: |
| 3741 | case XML_ELEMENT_DECL: |
| 3742 | case XML_ATTRIBUTE_DECL: |
| 3743 | case XML_ENTITY_DECL: |
| 3744 | case XML_XINCLUDE_START: |
| 3745 | case XML_XINCLUDE_END: |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3746 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3747 | } |
| 3748 | cur = cur->next; |
| 3749 | } |
| 3750 | if (glob) strcat(buf, ")"); |
| 3751 | } |
| 3752 | |
| 3753 | /** |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3754 | * xmlValidateElementContent: |
| 3755 | * @ctxt: the validation context |
| 3756 | * @child: the child list |
| 3757 | * @cont: pointer to the content declaration |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3758 | * @warn: emit the error message |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3759 | * |
| 3760 | * Try to validate the content model of an element |
| 3761 | * |
| 3762 | * returns 1 if valid or 0 if not and -1 in case of error |
| 3763 | */ |
| 3764 | |
| 3765 | static int |
| 3766 | xmlValidateElementContent(xmlValidCtxtPtr ctxt, xmlNodePtr child, |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3767 | xmlElementContentPtr cont, int warn, const xmlChar *name) { |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3768 | int ret; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3769 | xmlNodePtr repl = NULL, last = NULL, cur, tmp; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3770 | |
| 3771 | /* |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3772 | * Allocate the stack |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3773 | */ |
| 3774 | ctxt->vstateMax = 8; |
| 3775 | ctxt->vstateTab = (xmlValidState *) xmlMalloc( |
| 3776 | ctxt->vstateMax * sizeof(ctxt->vstateTab[0])); |
| 3777 | if (ctxt->vstateTab == NULL) { |
| 3778 | xmlGenericError(xmlGenericErrorContext, |
| 3779 | "malloc failed !n"); |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3780 | return(-1); |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3781 | } |
| 3782 | /* |
| 3783 | * The first entry in the stack is reserved to the current state |
| 3784 | */ |
Daniel Veillard | a9142e7 | 2001-06-19 11:07:54 +0000 | [diff] [blame] | 3785 | ctxt->nodeMax = 0; |
| 3786 | ctxt->nodeNr = 0; |
Daniel Veillard | 61b33d5 | 2001-04-24 13:55:12 +0000 | [diff] [blame] | 3787 | ctxt->nodeTab = NULL; |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3788 | ctxt->vstate = &ctxt->vstateTab[0]; |
| 3789 | ctxt->vstateNr = 1; |
| 3790 | CONT = cont; |
| 3791 | NODE = child; |
| 3792 | DEPTH = 0; |
| 3793 | OCCURS = 0; |
| 3794 | STATE = 0; |
| 3795 | ret = xmlValidateElementType(ctxt); |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3796 | if ((ret == -3) && (warn)) { |
| 3797 | VWARNING(ctxt->userData, |
| 3798 | "Element %s content model is ambiguous\n", name); |
| 3799 | } else if (ret == -2) { |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3800 | /* |
| 3801 | * An entities reference appeared at this level. |
| 3802 | * Buid a minimal representation of this node content |
| 3803 | * sufficient to run the validation process on it |
| 3804 | */ |
| 3805 | DEBUG_VALID_MSG("Found an entity reference, linearizing"); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3806 | cur = child; |
| 3807 | while (cur != NULL) { |
| 3808 | switch (cur->type) { |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3809 | case XML_ENTITY_REF_NODE: |
| 3810 | /* |
| 3811 | * Push the current node to be able to roll back |
| 3812 | * and process within the entity |
| 3813 | */ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3814 | if ((cur->children != NULL) && |
| 3815 | (cur->children->children != NULL)) { |
| 3816 | nodeVPush(ctxt, cur); |
| 3817 | cur = cur->children->children; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3818 | continue; |
| 3819 | } |
Daniel Veillard | 64b98c0 | 2001-06-17 17:20:21 +0000 | [diff] [blame] | 3820 | break; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3821 | case XML_TEXT_NODE: |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3822 | case XML_CDATA_SECTION_NODE: |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3823 | if (xmlIsBlankNode(cur)) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3824 | break; |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3825 | /* no break on purpose */ |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3826 | case XML_ELEMENT_NODE: |
| 3827 | /* |
| 3828 | * Allocate a new node and minimally fills in |
| 3829 | * what's required |
| 3830 | */ |
| 3831 | tmp = (xmlNodePtr) xmlMalloc(sizeof(xmlNode)); |
| 3832 | if (tmp == NULL) { |
| 3833 | xmlGenericError(xmlGenericErrorContext, |
| 3834 | "xmlValidateElementContent : malloc failed\n"); |
| 3835 | xmlFreeNodeList(repl); |
| 3836 | ret = -1; |
| 3837 | goto done; |
| 3838 | } |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3839 | tmp->type = cur->type; |
| 3840 | tmp->name = cur->name; |
| 3841 | tmp->ns = cur->ns; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3842 | tmp->next = NULL; |
| 3843 | if (repl == NULL) |
| 3844 | repl = last = tmp; |
| 3845 | else { |
| 3846 | last->next = tmp; |
| 3847 | last = tmp; |
| 3848 | } |
| 3849 | break; |
| 3850 | default: |
| 3851 | break; |
| 3852 | } |
| 3853 | /* |
| 3854 | * Switch to next element |
| 3855 | */ |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3856 | cur = cur->next; |
| 3857 | while (cur == NULL) { |
| 3858 | cur = nodeVPop(ctxt); |
| 3859 | if (cur == NULL) |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3860 | break; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3861 | cur = cur->next; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3862 | } |
| 3863 | } |
| 3864 | |
| 3865 | /* |
| 3866 | * Relaunch the validation |
| 3867 | */ |
| 3868 | ctxt->vstate = &ctxt->vstateTab[0]; |
| 3869 | ctxt->vstateNr = 1; |
| 3870 | CONT = cont; |
| 3871 | NODE = repl; |
| 3872 | DEPTH = 0; |
| 3873 | OCCURS = 0; |
| 3874 | STATE = 0; |
| 3875 | ret = xmlValidateElementType(ctxt); |
| 3876 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3877 | if ((warn) && ((ret != 1) && (ret != -3))) { |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3878 | char expr[5000]; |
| 3879 | char list[5000]; |
| 3880 | |
| 3881 | expr[0] = 0; |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3882 | xmlSnprintfElementContent(expr, 5000, cont, 1); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3883 | list[0] = 0; |
| 3884 | if (repl != NULL) |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3885 | xmlSnprintfElements(list, 5000, repl, 1); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3886 | else |
Daniel Veillard | d3d0672 | 2001-08-15 12:06:36 +0000 | [diff] [blame] | 3887 | xmlSnprintfElements(list, 5000, child, 1); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3888 | |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 3889 | if (name != NULL) { |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3890 | VERROR(ctxt->userData, |
| 3891 | "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] | 3892 | name, expr, list); |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3893 | } else { |
| 3894 | VERROR(ctxt->userData, |
| 3895 | "Element content doesn't follow the Dtd\nExpecting %s, got %s\n", |
| 3896 | expr, list); |
| 3897 | } |
| 3898 | ret = 0; |
| 3899 | } |
Daniel Veillard | 4de4d3b | 2001-05-07 20:50:47 +0000 | [diff] [blame] | 3900 | if (ret == -3) |
| 3901 | ret = 1; |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3902 | |
| 3903 | |
| 3904 | done: |
| 3905 | /* |
| 3906 | * Deallocate the copy if done, and free up the validation stack |
| 3907 | */ |
| 3908 | while (repl != NULL) { |
| 3909 | tmp = repl->next; |
| 3910 | xmlFree(repl); |
| 3911 | repl = tmp; |
| 3912 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3913 | ctxt->vstateMax = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3914 | if (ctxt->vstateTab != NULL) { |
| 3915 | xmlFree(ctxt->vstateTab); |
| 3916 | ctxt->vstateTab = NULL; |
| 3917 | } |
| 3918 | ctxt->nodeMax = 0; |
Daniel Veillard | a9142e7 | 2001-06-19 11:07:54 +0000 | [diff] [blame] | 3919 | ctxt->nodeNr = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 3920 | if (ctxt->nodeTab != NULL) { |
| 3921 | xmlFree(ctxt->nodeTab); |
| 3922 | ctxt->nodeTab = NULL; |
| 3923 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3924 | return(ret); |
Daniel Veillard | 1c14b8d | 2001-04-21 10:28:59 +0000 | [diff] [blame] | 3925 | |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3926 | } |
Daniel Veillard | dab4cb3 | 2001-04-20 13:03:48 +0000 | [diff] [blame] | 3927 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3928 | /** |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 3929 | * xmlValidateCdataElement: |
| 3930 | * @ctxt: the validation context |
| 3931 | * @doc: a document instance |
| 3932 | * @elem: an element instance |
| 3933 | * |
| 3934 | * Check that an element follows #CDATA |
| 3935 | * |
| 3936 | * returns 1 if valid or 0 otherwise |
| 3937 | */ |
| 3938 | static int |
| 3939 | xmlValidateOneCdataElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 3940 | xmlNodePtr elem) { |
| 3941 | int ret = 1; |
| 3942 | xmlNodePtr cur, child; |
| 3943 | |
| 3944 | if ((ctxt == NULL) || (doc == NULL) | (elem == NULL)) |
| 3945 | return(0); |
| 3946 | |
| 3947 | child = elem->children; |
| 3948 | |
| 3949 | cur = child; |
| 3950 | while (cur != NULL) { |
| 3951 | switch (cur->type) { |
| 3952 | case XML_ENTITY_REF_NODE: |
| 3953 | /* |
| 3954 | * Push the current node to be able to roll back |
| 3955 | * and process within the entity |
| 3956 | */ |
| 3957 | if ((cur->children != NULL) && |
| 3958 | (cur->children->children != NULL)) { |
| 3959 | nodeVPush(ctxt, cur); |
| 3960 | cur = cur->children->children; |
| 3961 | continue; |
| 3962 | } |
| 3963 | break; |
| 3964 | case XML_COMMENT_NODE: |
| 3965 | case XML_PI_NODE: |
| 3966 | case XML_TEXT_NODE: |
| 3967 | case XML_CDATA_SECTION_NODE: |
| 3968 | break; |
| 3969 | default: |
| 3970 | ret = 0; |
| 3971 | goto done; |
| 3972 | } |
| 3973 | /* |
| 3974 | * Switch to next element |
| 3975 | */ |
| 3976 | cur = cur->next; |
| 3977 | while (cur == NULL) { |
| 3978 | cur = nodeVPop(ctxt); |
| 3979 | if (cur == NULL) |
| 3980 | break; |
| 3981 | cur = cur->next; |
| 3982 | } |
| 3983 | } |
| 3984 | done: |
| 3985 | ctxt->nodeMax = 0; |
| 3986 | ctxt->nodeNr = 0; |
| 3987 | if (ctxt->nodeTab != NULL) { |
| 3988 | xmlFree(ctxt->nodeTab); |
| 3989 | ctxt->nodeTab = NULL; |
| 3990 | } |
| 3991 | return(ret); |
| 3992 | } |
| 3993 | |
| 3994 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 3995 | * xmlValidateOneElement: |
| 3996 | * @ctxt: the validation context |
| 3997 | * @doc: a document instance |
| 3998 | * @elem: an element instance |
| 3999 | * |
| 4000 | * Try to validate a single element and it's attributes, |
| 4001 | * basically it does the following checks as described by the |
| 4002 | * XML-1.0 recommendation: |
| 4003 | * - [ VC: Element Valid ] |
| 4004 | * - [ VC: Required Attribute ] |
| 4005 | * Then call xmlValidateOneAttribute() for each attribute present. |
| 4006 | * |
| 4007 | * The ID/IDREF checkings are done separately |
| 4008 | * |
| 4009 | * returns 1 if valid or 0 otherwise |
| 4010 | */ |
| 4011 | |
| 4012 | int |
| 4013 | xmlValidateOneElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, |
| 4014 | xmlNodePtr elem) { |
| 4015 | xmlElementPtr elemDecl = NULL; |
| 4016 | xmlElementContentPtr cont; |
| 4017 | xmlAttributePtr attr; |
| 4018 | xmlNodePtr child; |
| 4019 | int ret = 1; |
| 4020 | const xmlChar *name; |
| 4021 | |
| 4022 | CHECK_DTD; |
| 4023 | |
| 4024 | if (elem == NULL) return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4025 | switch (elem->type) { |
| 4026 | case XML_ATTRIBUTE_NODE: |
| 4027 | VERROR(ctxt->userData, |
| 4028 | "Attribute element not expected here\n"); |
| 4029 | return(0); |
| 4030 | case XML_TEXT_NODE: |
| 4031 | if (elem->children != NULL) { |
| 4032 | VERROR(ctxt->userData, "Text element has childs !\n"); |
| 4033 | return(0); |
| 4034 | } |
| 4035 | if (elem->properties != NULL) { |
| 4036 | VERROR(ctxt->userData, "Text element has attributes !\n"); |
| 4037 | return(0); |
| 4038 | } |
| 4039 | if (elem->ns != NULL) { |
| 4040 | VERROR(ctxt->userData, "Text element has namespace !\n"); |
| 4041 | return(0); |
| 4042 | } |
| 4043 | if (elem->nsDef != NULL) { |
| 4044 | VERROR(ctxt->userData, |
| 4045 | "Text element carries namespace definitions !\n"); |
| 4046 | return(0); |
| 4047 | } |
| 4048 | if (elem->content == NULL) { |
| 4049 | VERROR(ctxt->userData, |
| 4050 | "Text element has no content !\n"); |
| 4051 | return(0); |
| 4052 | } |
| 4053 | return(1); |
| 4054 | case XML_XINCLUDE_START: |
| 4055 | case XML_XINCLUDE_END: |
| 4056 | return(1); |
| 4057 | case XML_CDATA_SECTION_NODE: |
| 4058 | case XML_ENTITY_REF_NODE: |
| 4059 | case XML_PI_NODE: |
| 4060 | case XML_COMMENT_NODE: |
| 4061 | return(1); |
| 4062 | case XML_ENTITY_NODE: |
| 4063 | VERROR(ctxt->userData, |
| 4064 | "Entity element not expected here\n"); |
| 4065 | return(0); |
| 4066 | case XML_NOTATION_NODE: |
| 4067 | VERROR(ctxt->userData, |
| 4068 | "Notation element not expected here\n"); |
| 4069 | return(0); |
| 4070 | case XML_DOCUMENT_NODE: |
| 4071 | case XML_DOCUMENT_TYPE_NODE: |
| 4072 | case XML_DOCUMENT_FRAG_NODE: |
| 4073 | VERROR(ctxt->userData, |
| 4074 | "Document element not expected here\n"); |
| 4075 | return(0); |
| 4076 | case XML_HTML_DOCUMENT_NODE: |
| 4077 | VERROR(ctxt->userData, |
| 4078 | "\n"); |
| 4079 | return(0); |
| 4080 | case XML_ELEMENT_NODE: |
| 4081 | break; |
| 4082 | default: |
| 4083 | VERROR(ctxt->userData, |
| 4084 | "unknown element type %d\n", elem->type); |
| 4085 | return(0); |
| 4086 | } |
| 4087 | if (elem->name == NULL) return(0); |
| 4088 | |
| 4089 | /* |
| 4090 | * Fetch the declaration for the qualified name |
| 4091 | */ |
| 4092 | if ((elem->ns != NULL) && (elem->ns->prefix != NULL)) { |
| 4093 | elemDecl = xmlGetDtdQElementDesc(doc->intSubset, |
| 4094 | elem->name, elem->ns->prefix); |
| 4095 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 4096 | elemDecl = xmlGetDtdQElementDesc(doc->extSubset, |
| 4097 | elem->name, elem->ns->prefix); |
| 4098 | } |
| 4099 | |
| 4100 | /* |
| 4101 | * Fetch the declaration for the non qualified name |
| 4102 | */ |
| 4103 | if (elemDecl == NULL) { |
| 4104 | elemDecl = xmlGetDtdElementDesc(doc->intSubset, elem->name); |
| 4105 | if ((elemDecl == NULL) && (doc->extSubset != NULL)) |
| 4106 | elemDecl = xmlGetDtdElementDesc(doc->extSubset, elem->name); |
| 4107 | } |
| 4108 | if (elemDecl == NULL) { |
| 4109 | VERROR(ctxt->userData, "No declaration for element %s\n", |
| 4110 | elem->name); |
| 4111 | return(0); |
| 4112 | } |
| 4113 | |
| 4114 | /* Check taht the element content matches the definition */ |
| 4115 | switch (elemDecl->etype) { |
Daniel Veillard | a10efa8 | 2001-04-18 13:09:01 +0000 | [diff] [blame] | 4116 | case XML_ELEMENT_TYPE_UNDEFINED: |
| 4117 | VERROR(ctxt->userData, "No declaration for element %s\n", |
| 4118 | elem->name); |
| 4119 | return(0); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4120 | case XML_ELEMENT_TYPE_EMPTY: |
| 4121 | if (elem->children != NULL) { |
| 4122 | VERROR(ctxt->userData, |
| 4123 | "Element %s was declared EMPTY this one has content\n", |
| 4124 | elem->name); |
| 4125 | ret = 0; |
| 4126 | } |
| 4127 | break; |
| 4128 | case XML_ELEMENT_TYPE_ANY: |
| 4129 | /* I don't think anything is required then */ |
| 4130 | break; |
| 4131 | case XML_ELEMENT_TYPE_MIXED: |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 4132 | /* simple case of declared as #PCDATA */ |
| 4133 | if ((elemDecl->content != NULL) && |
| 4134 | (elemDecl->content->type == XML_ELEMENT_CONTENT_PCDATA)) { |
| 4135 | ret = xmlValidateOneCdataElement(ctxt, doc, elem); |
| 4136 | if (!ret) { |
| 4137 | VERROR(ctxt->userData, |
| 4138 | "Element %s was declared #PCDATA but contains non text nodes\n", |
| 4139 | elem->name); |
| 4140 | } |
| 4141 | break; |
| 4142 | } |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4143 | child = elem->children; |
Daniel Veillard | 04e2dae | 2001-07-09 20:07:25 +0000 | [diff] [blame] | 4144 | /* Hum, this start to get messy */ |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4145 | while (child != NULL) { |
| 4146 | if (child->type == XML_ELEMENT_NODE) { |
| 4147 | name = child->name; |
| 4148 | if ((child->ns != NULL) && (child->ns->prefix != NULL)) { |
| 4149 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4150 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 4151 | child->ns->prefix, child->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4152 | qname[sizeof(qname) - 1] = 0; |
| 4153 | cont = elemDecl->content; |
| 4154 | while (cont != NULL) { |
| 4155 | if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 4156 | if (xmlStrEqual(cont->name, qname)) break; |
| 4157 | } else if ((cont->type == XML_ELEMENT_CONTENT_OR) && |
| 4158 | (cont->c1 != NULL) && |
| 4159 | (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)){ |
| 4160 | if (xmlStrEqual(cont->c1->name, qname)) break; |
| 4161 | } else if ((cont->type != XML_ELEMENT_CONTENT_OR) || |
| 4162 | (cont->c1 == NULL) || |
| 4163 | (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)){ |
| 4164 | /* Internal error !!! */ |
| 4165 | xmlGenericError(xmlGenericErrorContext, |
| 4166 | "Internal: MIXED struct bad\n"); |
| 4167 | break; |
| 4168 | } |
| 4169 | cont = cont->c2; |
| 4170 | } |
| 4171 | if (cont != NULL) |
| 4172 | goto child_ok; |
| 4173 | } |
| 4174 | cont = elemDecl->content; |
| 4175 | while (cont != NULL) { |
| 4176 | if (cont->type == XML_ELEMENT_CONTENT_ELEMENT) { |
| 4177 | if (xmlStrEqual(cont->name, name)) break; |
| 4178 | } else if ((cont->type == XML_ELEMENT_CONTENT_OR) && |
| 4179 | (cont->c1 != NULL) && |
| 4180 | (cont->c1->type == XML_ELEMENT_CONTENT_ELEMENT)) { |
| 4181 | if (xmlStrEqual(cont->c1->name, name)) break; |
| 4182 | } else if ((cont->type != XML_ELEMENT_CONTENT_OR) || |
| 4183 | (cont->c1 == NULL) || |
| 4184 | (cont->c1->type != XML_ELEMENT_CONTENT_PCDATA)) { |
| 4185 | /* Internal error !!! */ |
| 4186 | xmlGenericError(xmlGenericErrorContext, |
| 4187 | "Internal: MIXED struct bad\n"); |
| 4188 | break; |
| 4189 | } |
| 4190 | cont = cont->c2; |
| 4191 | } |
| 4192 | if (cont == NULL) { |
| 4193 | VERROR(ctxt->userData, |
| 4194 | "Element %s is not declared in %s list of possible childs\n", |
| 4195 | name, elem->name); |
| 4196 | ret = 0; |
| 4197 | } |
| 4198 | } |
| 4199 | child_ok: |
| 4200 | child = child->next; |
| 4201 | } |
| 4202 | break; |
| 4203 | case XML_ELEMENT_TYPE_ELEMENT: |
| 4204 | child = elem->children; |
| 4205 | cont = elemDecl->content; |
Daniel Veillard | 7533cc8 | 2001-04-24 15:52:00 +0000 | [diff] [blame] | 4206 | ret = xmlValidateElementContent(ctxt, child, cont, 1, elem->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4207 | break; |
| 4208 | } |
| 4209 | |
| 4210 | /* [ VC: Required Attribute ] */ |
| 4211 | attr = elemDecl->attributes; |
| 4212 | while (attr != NULL) { |
| 4213 | if (attr->def == XML_ATTRIBUTE_REQUIRED) { |
| 4214 | xmlAttrPtr attrib; |
| 4215 | int qualified = -1; |
| 4216 | |
| 4217 | attrib = elem->properties; |
| 4218 | while (attrib != NULL) { |
| 4219 | if (xmlStrEqual(attrib->name, attr->name)) { |
| 4220 | if (attr->prefix != NULL) { |
| 4221 | xmlNsPtr nameSpace = attrib->ns; |
| 4222 | |
| 4223 | if (nameSpace == NULL) |
| 4224 | nameSpace = elem->ns; |
| 4225 | /* |
| 4226 | * qualified names handling is problematic, having a |
| 4227 | * different prefix should be possible but DTDs don't |
| 4228 | * allow to define the URI instead of the prefix :-( |
| 4229 | */ |
| 4230 | if (nameSpace == NULL) { |
| 4231 | if (qualified < 0) |
| 4232 | qualified = 0; |
Daniel Veillard | 34b1b3a | 2001-04-21 14:16:10 +0000 | [diff] [blame] | 4233 | } else if (!xmlStrEqual(nameSpace->prefix, |
| 4234 | attr->prefix)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4235 | if (qualified < 1) |
| 4236 | qualified = 1; |
| 4237 | } else |
| 4238 | goto found; |
| 4239 | } else { |
| 4240 | /* |
| 4241 | * We should allow applications to define namespaces |
| 4242 | * for their application even if the DTD doesn't |
| 4243 | * carry one, otherwise, basically we would always |
| 4244 | * break. |
| 4245 | */ |
| 4246 | goto found; |
| 4247 | } |
| 4248 | } |
| 4249 | attrib = attrib->next; |
| 4250 | } |
| 4251 | if (qualified == -1) { |
| 4252 | if (attr->prefix == NULL) { |
| 4253 | VERROR(ctxt->userData, |
| 4254 | "Element %s doesn't carry attribute %s\n", |
| 4255 | elem->name, attr->name); |
| 4256 | ret = 0; |
| 4257 | } else { |
| 4258 | VERROR(ctxt->userData, |
| 4259 | "Element %s doesn't carry attribute %s:%s\n", |
| 4260 | elem->name, attr->prefix,attr->name); |
| 4261 | ret = 0; |
| 4262 | } |
| 4263 | } else if (qualified == 0) { |
| 4264 | VWARNING(ctxt->userData, |
| 4265 | "Element %s required attribute %s:%s has no prefix\n", |
| 4266 | elem->name, attr->prefix,attr->name); |
| 4267 | } else if (qualified == 1) { |
| 4268 | VWARNING(ctxt->userData, |
| 4269 | "Element %s required attribute %s:%s has different prefix\n", |
| 4270 | elem->name, attr->prefix,attr->name); |
| 4271 | } |
| 4272 | } |
| 4273 | found: |
| 4274 | attr = attr->nexth; |
| 4275 | } |
| 4276 | return(ret); |
| 4277 | } |
| 4278 | |
| 4279 | /** |
| 4280 | * xmlValidateRoot: |
| 4281 | * @ctxt: the validation context |
| 4282 | * @doc: a document instance |
| 4283 | * |
| 4284 | * Try to validate a the root element |
| 4285 | * basically it does the following check as described by the |
| 4286 | * XML-1.0 recommendation: |
| 4287 | * - [ VC: Root Element Type ] |
| 4288 | * it doesn't try to recurse or apply other check to the element |
| 4289 | * |
| 4290 | * returns 1 if valid or 0 otherwise |
| 4291 | */ |
| 4292 | |
| 4293 | int |
| 4294 | xmlValidateRoot(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4295 | xmlNodePtr root; |
| 4296 | if (doc == NULL) return(0); |
| 4297 | |
| 4298 | root = xmlDocGetRootElement(doc); |
| 4299 | if ((root == NULL) || (root->name == NULL)) { |
| 4300 | VERROR(ctxt->userData, "Not valid: no root element\n"); |
| 4301 | return(0); |
| 4302 | } |
| 4303 | |
| 4304 | /* |
| 4305 | * When doing post validation against a separate DTD, those may |
| 4306 | * no internal subset has been generated |
| 4307 | */ |
| 4308 | if ((doc->intSubset != NULL) && |
| 4309 | (doc->intSubset->name != NULL)) { |
| 4310 | /* |
| 4311 | * Check first the document root against the NQName |
| 4312 | */ |
| 4313 | if (!xmlStrEqual(doc->intSubset->name, root->name)) { |
| 4314 | if ((root->ns != NULL) && (root->ns->prefix != NULL)) { |
| 4315 | xmlChar qname[500]; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4316 | snprintf((char *) qname, sizeof(qname), "%s:%s", |
| 4317 | root->ns->prefix, root->name); |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4318 | qname[sizeof(qname) - 1] = 0; |
| 4319 | if (xmlStrEqual(doc->intSubset->name, qname)) |
| 4320 | goto name_ok; |
| 4321 | } |
| 4322 | if ((xmlStrEqual(doc->intSubset->name, BAD_CAST "HTML")) && |
| 4323 | (xmlStrEqual(root->name, BAD_CAST "html"))) |
| 4324 | goto name_ok; |
| 4325 | VERROR(ctxt->userData, |
| 4326 | "Not valid: root and DtD name do not match '%s' and '%s'\n", |
| 4327 | root->name, doc->intSubset->name); |
| 4328 | return(0); |
| 4329 | |
| 4330 | } |
| 4331 | } |
| 4332 | name_ok: |
| 4333 | return(1); |
| 4334 | } |
| 4335 | |
| 4336 | |
| 4337 | /** |
| 4338 | * xmlValidateElement: |
| 4339 | * @ctxt: the validation context |
| 4340 | * @doc: a document instance |
| 4341 | * @elem: an element instance |
| 4342 | * |
| 4343 | * Try to validate the subtree under an element |
| 4344 | * |
| 4345 | * returns 1 if valid or 0 otherwise |
| 4346 | */ |
| 4347 | |
| 4348 | int |
| 4349 | xmlValidateElement(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlNodePtr elem) { |
| 4350 | xmlNodePtr child; |
| 4351 | xmlAttrPtr attr; |
| 4352 | xmlChar *value; |
| 4353 | int ret = 1; |
| 4354 | |
| 4355 | if (elem == NULL) return(0); |
| 4356 | |
| 4357 | /* |
| 4358 | * XInclude elements were added after parsing in the infoset, |
| 4359 | * they don't really mean anything validation wise. |
| 4360 | */ |
| 4361 | if ((elem->type == XML_XINCLUDE_START) || |
| 4362 | (elem->type == XML_XINCLUDE_END)) |
| 4363 | return(1); |
| 4364 | |
| 4365 | CHECK_DTD; |
| 4366 | |
Daniel Veillard | 10ea86c | 2001-06-20 13:55:33 +0000 | [diff] [blame] | 4367 | /* |
| 4368 | * Entities references have to be handled separately |
| 4369 | */ |
| 4370 | if (elem->type == XML_ENTITY_REF_NODE) { |
| 4371 | return(1); |
| 4372 | } |
| 4373 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4374 | ret &= xmlValidateOneElement(ctxt, doc, elem); |
| 4375 | attr = elem->properties; |
| 4376 | while(attr != NULL) { |
| 4377 | value = xmlNodeListGetString(doc, attr->children, 0); |
| 4378 | ret &= xmlValidateOneAttribute(ctxt, doc, elem, attr, value); |
| 4379 | if (value != NULL) |
| 4380 | xmlFree(value); |
| 4381 | attr= attr->next; |
| 4382 | } |
| 4383 | child = elem->children; |
| 4384 | while (child != NULL) { |
| 4385 | ret &= xmlValidateElement(ctxt, doc, child); |
| 4386 | child = child->next; |
| 4387 | } |
| 4388 | |
| 4389 | return(ret); |
| 4390 | } |
| 4391 | |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4392 | /** |
| 4393 | * xmlValidateRef: |
| 4394 | * @ref: A reference to be validated |
| 4395 | * @ctxt: Validation context |
| 4396 | * @name: Name of ID we are searching for |
| 4397 | * |
| 4398 | */ |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4399 | static void |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4400 | xmlValidateRef(xmlRefPtr ref, xmlValidCtxtPtr ctxt, |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4401 | const xmlChar *name) { |
| 4402 | xmlAttrPtr id; |
| 4403 | xmlAttrPtr attr; |
| 4404 | |
| 4405 | if (ref == NULL) |
| 4406 | return; |
| 4407 | attr = ref->attr; |
| 4408 | if (attr == NULL) |
| 4409 | return; |
| 4410 | if (attr->atype == XML_ATTRIBUTE_IDREF) { |
| 4411 | id = xmlGetID(ctxt->doc, name); |
| 4412 | if (id == NULL) { |
| 4413 | VERROR(ctxt->userData, |
| 4414 | "IDREF attribute %s reference an unknown ID \"%s\"\n", |
| 4415 | attr->name, name); |
| 4416 | ctxt->valid = 0; |
| 4417 | } |
| 4418 | } else if (attr->atype == XML_ATTRIBUTE_IDREFS) { |
| 4419 | xmlChar *dup, *str = NULL, *cur, save; |
| 4420 | |
| 4421 | dup = xmlStrdup(name); |
| 4422 | if (dup == NULL) { |
| 4423 | ctxt->valid = 0; |
| 4424 | return; |
| 4425 | } |
| 4426 | cur = dup; |
| 4427 | while (*cur != 0) { |
| 4428 | str = cur; |
| 4429 | while ((*cur != 0) && (!IS_BLANK(*cur))) cur++; |
| 4430 | save = *cur; |
| 4431 | *cur = 0; |
| 4432 | id = xmlGetID(ctxt->doc, str); |
| 4433 | if (id == NULL) { |
| 4434 | VERROR(ctxt->userData, |
| 4435 | "IDREFS attribute %s reference an unknown ID \"%s\"\n", |
| 4436 | attr->name, str); |
| 4437 | ctxt->valid = 0; |
| 4438 | } |
| 4439 | if (save == 0) |
| 4440 | break; |
| 4441 | *cur = save; |
| 4442 | while (IS_BLANK(*cur)) cur++; |
| 4443 | } |
| 4444 | xmlFree(dup); |
| 4445 | } |
| 4446 | } |
| 4447 | |
| 4448 | /** |
Daniel Veillard | 8730c56 | 2001-02-26 10:49:57 +0000 | [diff] [blame] | 4449 | * xmlWalkValidateList: |
| 4450 | * @data: Contents of current link |
| 4451 | * @user: Value supplied by the user |
| 4452 | * |
| 4453 | * Return 0 to abort the walk or 1 to continue |
| 4454 | */ |
| 4455 | static int |
| 4456 | xmlWalkValidateList(const void *data, const void *user) |
| 4457 | { |
| 4458 | xmlValidateMemoPtr memo = (xmlValidateMemoPtr)user; |
| 4459 | xmlValidateRef((xmlRefPtr)data, memo->ctxt, memo->name); |
| 4460 | return 1; |
| 4461 | } |
| 4462 | |
| 4463 | /** |
| 4464 | * xmlValidateCheckRefCallback: |
| 4465 | * @ref_list: List of references |
| 4466 | * @ctxt: Validation context |
| 4467 | * @name: Name of ID we are searching for |
| 4468 | * |
| 4469 | */ |
| 4470 | static void |
| 4471 | xmlValidateCheckRefCallback(xmlListPtr ref_list, xmlValidCtxtPtr ctxt, |
| 4472 | const xmlChar *name) { |
| 4473 | xmlValidateMemo memo; |
| 4474 | |
| 4475 | if (ref_list == NULL) |
| 4476 | return; |
| 4477 | memo.ctxt = ctxt; |
| 4478 | memo.name = name; |
| 4479 | |
| 4480 | xmlListWalk(ref_list, xmlWalkValidateList, &memo); |
| 4481 | |
| 4482 | } |
| 4483 | |
| 4484 | /** |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4485 | * xmlValidateDocumentFinal: |
| 4486 | * @ctxt: the validation context |
| 4487 | * @doc: a document instance |
| 4488 | * |
| 4489 | * Does the final step for the document validation once all the |
| 4490 | * incremental validation steps have been completed |
| 4491 | * |
| 4492 | * basically it does the following checks described by the XML Rec |
| 4493 | * |
| 4494 | * |
| 4495 | * returns 1 if valid or 0 otherwise |
| 4496 | */ |
| 4497 | |
| 4498 | int |
| 4499 | xmlValidateDocumentFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4500 | xmlRefTablePtr table; |
| 4501 | |
| 4502 | if (doc == NULL) { |
| 4503 | xmlGenericError(xmlGenericErrorContext, |
| 4504 | "xmlValidateDocumentFinal: doc == NULL\n"); |
| 4505 | return(0); |
| 4506 | } |
| 4507 | |
| 4508 | /* |
| 4509 | * Check all the NOTATION/NOTATIONS attributes |
| 4510 | */ |
| 4511 | /* |
| 4512 | * Check all the ENTITY/ENTITIES attributes definition for validity |
| 4513 | */ |
| 4514 | /* |
| 4515 | * Check all the IDREF/IDREFS attributes definition for validity |
| 4516 | */ |
| 4517 | table = (xmlRefTablePtr) doc->refs; |
| 4518 | ctxt->doc = doc; |
| 4519 | ctxt->valid = 1; |
| 4520 | xmlHashScan(table, (xmlHashScanner) xmlValidateCheckRefCallback, ctxt); |
| 4521 | return(ctxt->valid); |
| 4522 | } |
| 4523 | |
| 4524 | /** |
| 4525 | * xmlValidateDtd: |
| 4526 | * @ctxt: the validation context |
| 4527 | * @doc: a document instance |
| 4528 | * @dtd: a dtd instance |
| 4529 | * |
| 4530 | * Try to validate the document against the dtd instance |
| 4531 | * |
| 4532 | * basically it does check all the definitions in the DtD. |
| 4533 | * |
| 4534 | * returns 1 if valid or 0 otherwise |
| 4535 | */ |
| 4536 | |
| 4537 | int |
| 4538 | xmlValidateDtd(xmlValidCtxtPtr ctxt, xmlDocPtr doc, xmlDtdPtr dtd) { |
| 4539 | int ret; |
| 4540 | xmlDtdPtr oldExt; |
| 4541 | xmlNodePtr root; |
| 4542 | |
| 4543 | if (dtd == NULL) return(0); |
| 4544 | if (doc == NULL) return(0); |
| 4545 | oldExt = doc->extSubset; |
| 4546 | doc->extSubset = dtd; |
| 4547 | ret = xmlValidateRoot(ctxt, doc); |
| 4548 | if (ret == 0) { |
| 4549 | doc->extSubset = oldExt; |
| 4550 | return(ret); |
| 4551 | } |
| 4552 | if (doc->ids != NULL) { |
| 4553 | xmlFreeIDTable(doc->ids); |
| 4554 | doc->ids = NULL; |
| 4555 | } |
| 4556 | if (doc->refs != NULL) { |
| 4557 | xmlFreeRefTable(doc->refs); |
| 4558 | doc->refs = NULL; |
| 4559 | } |
| 4560 | root = xmlDocGetRootElement(doc); |
| 4561 | ret = xmlValidateElement(ctxt, doc, root); |
| 4562 | ret &= xmlValidateDocumentFinal(ctxt, doc); |
| 4563 | doc->extSubset = oldExt; |
| 4564 | return(ret); |
| 4565 | } |
| 4566 | |
Daniel Veillard | 56a4cb8 | 2001-03-24 17:00:36 +0000 | [diff] [blame] | 4567 | static void |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4568 | xmlValidateAttributeCallback(xmlAttributePtr cur, xmlValidCtxtPtr ctxt, |
Daniel Veillard | c86a4fa | 2001-03-26 16:28:29 +0000 | [diff] [blame] | 4569 | const xmlChar *name ATTRIBUTE_UNUSED) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4570 | if (cur == NULL) |
| 4571 | return; |
| 4572 | switch (cur->atype) { |
| 4573 | case XML_ATTRIBUTE_CDATA: |
| 4574 | case XML_ATTRIBUTE_ID: |
| 4575 | case XML_ATTRIBUTE_IDREF : |
| 4576 | case XML_ATTRIBUTE_IDREFS: |
| 4577 | case XML_ATTRIBUTE_NMTOKEN: |
| 4578 | case XML_ATTRIBUTE_NMTOKENS: |
| 4579 | case XML_ATTRIBUTE_ENUMERATION: |
| 4580 | break; |
| 4581 | case XML_ATTRIBUTE_ENTITY: |
| 4582 | case XML_ATTRIBUTE_ENTITIES: |
| 4583 | case XML_ATTRIBUTE_NOTATION: |
| 4584 | if (cur->defaultValue != NULL) { |
| 4585 | ctxt->valid &= xmlValidateAttributeValue2(ctxt, ctxt->doc, |
| 4586 | cur->name, cur->atype, cur->defaultValue); |
| 4587 | } |
| 4588 | if (cur->tree != NULL) { |
| 4589 | xmlEnumerationPtr tree = cur->tree; |
| 4590 | while (tree != NULL) { |
| 4591 | ctxt->valid &= xmlValidateAttributeValue2(ctxt, ctxt->doc, |
| 4592 | cur->name, cur->atype, tree->name); |
| 4593 | tree = tree->next; |
| 4594 | } |
| 4595 | } |
| 4596 | } |
| 4597 | } |
| 4598 | |
| 4599 | /** |
| 4600 | * xmlValidateDtdFinal: |
| 4601 | * @ctxt: the validation context |
| 4602 | * @doc: a document instance |
| 4603 | * |
| 4604 | * Does the final step for the dtds validation once all the |
| 4605 | * subsets have been parsed |
| 4606 | * |
| 4607 | * basically it does the following checks described by the XML Rec |
| 4608 | * - check that ENTITY and ENTITIES type attributes default or |
| 4609 | * possible values matches one of the defined entities. |
| 4610 | * - check that NOTATION type attributes default or |
| 4611 | * possible values matches one of the defined notations. |
| 4612 | * |
| 4613 | * returns 1 if valid or 0 otherwise |
| 4614 | */ |
| 4615 | |
| 4616 | int |
| 4617 | xmlValidateDtdFinal(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4618 | int ret = 1; |
| 4619 | xmlDtdPtr dtd; |
| 4620 | xmlAttributeTablePtr table; |
| 4621 | |
| 4622 | if (doc == NULL) return(0); |
| 4623 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) |
| 4624 | return(0); |
| 4625 | ctxt->doc = doc; |
| 4626 | ctxt->valid = ret; |
| 4627 | dtd = doc->intSubset; |
| 4628 | if ((dtd != NULL) && (dtd->attributes != NULL)) { |
| 4629 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 4630 | xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt); |
| 4631 | } |
| 4632 | dtd = doc->extSubset; |
| 4633 | if ((dtd != NULL) && (dtd->attributes != NULL)) { |
| 4634 | table = (xmlAttributeTablePtr) dtd->attributes; |
| 4635 | xmlHashScan(table, (xmlHashScanner) xmlValidateAttributeCallback, ctxt); |
| 4636 | } |
| 4637 | return(ctxt->valid); |
| 4638 | } |
| 4639 | |
| 4640 | /** |
| 4641 | * xmlValidateDocument: |
| 4642 | * @ctxt: the validation context |
| 4643 | * @doc: a document instance |
| 4644 | * |
| 4645 | * Try to validate the document instance |
| 4646 | * |
| 4647 | * basically it does the all the checks described by the XML Rec |
| 4648 | * i.e. validates the internal and external subset (if present) |
| 4649 | * and validate the document tree. |
| 4650 | * |
| 4651 | * returns 1 if valid or 0 otherwise |
| 4652 | */ |
| 4653 | |
| 4654 | int |
| 4655 | xmlValidateDocument(xmlValidCtxtPtr ctxt, xmlDocPtr doc) { |
| 4656 | int ret; |
| 4657 | xmlNodePtr root; |
| 4658 | |
| 4659 | if ((doc->intSubset == NULL) && (doc->extSubset == NULL)) |
| 4660 | return(0); |
| 4661 | if ((doc->intSubset != NULL) && ((doc->intSubset->SystemID != NULL) || |
| 4662 | (doc->intSubset->ExternalID != NULL)) && (doc->extSubset == NULL)) { |
| 4663 | doc->extSubset = xmlParseDTD(doc->intSubset->ExternalID, |
| 4664 | doc->intSubset->SystemID); |
| 4665 | if (doc->extSubset == NULL) { |
| 4666 | if (doc->intSubset->SystemID != NULL) { |
| 4667 | VERROR(ctxt->userData, |
| 4668 | "Could not load the external subset \"%s\"\n", |
| 4669 | doc->intSubset->SystemID); |
| 4670 | } else { |
| 4671 | VERROR(ctxt->userData, |
| 4672 | "Could not load the external subset \"%s\"\n", |
| 4673 | doc->intSubset->ExternalID); |
| 4674 | } |
| 4675 | return(0); |
| 4676 | } |
| 4677 | } |
| 4678 | |
| 4679 | if (doc->ids != NULL) { |
| 4680 | xmlFreeIDTable(doc->ids); |
| 4681 | doc->ids = NULL; |
| 4682 | } |
| 4683 | if (doc->refs != NULL) { |
| 4684 | xmlFreeRefTable(doc->refs); |
| 4685 | doc->refs = NULL; |
| 4686 | } |
| 4687 | ret = xmlValidateDtdFinal(ctxt, doc); |
| 4688 | if (!xmlValidateRoot(ctxt, doc)) return(0); |
| 4689 | |
| 4690 | root = xmlDocGetRootElement(doc); |
| 4691 | ret &= xmlValidateElement(ctxt, doc, root); |
| 4692 | ret &= xmlValidateDocumentFinal(ctxt, doc); |
| 4693 | return(ret); |
| 4694 | } |
| 4695 | |
| 4696 | |
| 4697 | /************************************************************************ |
| 4698 | * * |
| 4699 | * Routines for dynamic validation editing * |
| 4700 | * * |
| 4701 | ************************************************************************/ |
| 4702 | |
| 4703 | /** |
| 4704 | * xmlValidGetPotentialChildren: |
| 4705 | * @ctree: an element content tree |
| 4706 | * @list: an array to store the list of child names |
| 4707 | * @len: a pointer to the number of element in the list |
| 4708 | * @max: the size of the array |
| 4709 | * |
| 4710 | * Build/extend a list of potential children allowed by the content tree |
| 4711 | * |
| 4712 | * returns the number of element in the list, or -1 in case of error. |
| 4713 | */ |
| 4714 | |
| 4715 | int |
| 4716 | xmlValidGetPotentialChildren(xmlElementContent *ctree, const xmlChar **list, |
| 4717 | int *len, int max) { |
| 4718 | int i; |
| 4719 | |
| 4720 | if ((ctree == NULL) || (list == NULL) || (len == NULL)) |
| 4721 | return(-1); |
| 4722 | if (*len >= max) return(*len); |
| 4723 | |
| 4724 | switch (ctree->type) { |
| 4725 | case XML_ELEMENT_CONTENT_PCDATA: |
| 4726 | for (i = 0; i < *len;i++) |
| 4727 | if (xmlStrEqual(BAD_CAST "#PCDATA", list[i])) return(*len); |
| 4728 | list[(*len)++] = BAD_CAST "#PCDATA"; |
| 4729 | break; |
| 4730 | case XML_ELEMENT_CONTENT_ELEMENT: |
| 4731 | for (i = 0; i < *len;i++) |
| 4732 | if (xmlStrEqual(ctree->name, list[i])) return(*len); |
| 4733 | list[(*len)++] = ctree->name; |
| 4734 | break; |
| 4735 | case XML_ELEMENT_CONTENT_SEQ: |
| 4736 | xmlValidGetPotentialChildren(ctree->c1, list, len, max); |
| 4737 | xmlValidGetPotentialChildren(ctree->c2, list, len, max); |
| 4738 | break; |
| 4739 | case XML_ELEMENT_CONTENT_OR: |
| 4740 | xmlValidGetPotentialChildren(ctree->c1, list, len, max); |
| 4741 | xmlValidGetPotentialChildren(ctree->c2, list, len, max); |
| 4742 | break; |
| 4743 | } |
| 4744 | |
| 4745 | return(*len); |
| 4746 | } |
| 4747 | |
| 4748 | /** |
| 4749 | * xmlValidGetValidElements: |
| 4750 | * @prev: an element to insert after |
| 4751 | * @next: an element to insert next |
| 4752 | * @list: an array to store the list of child names |
| 4753 | * @max: the size of the array |
| 4754 | * |
| 4755 | * This function returns the list of authorized children to insert |
| 4756 | * within an existing tree while respecting the validity constraints |
| 4757 | * forced by the Dtd. The insertion point is defined using @prev and |
| 4758 | * @next in the following ways: |
| 4759 | * to insert before 'node': xmlValidGetValidElements(node->prev, node, ... |
| 4760 | * to insert next 'node': xmlValidGetValidElements(node, node->next, ... |
| 4761 | * to replace 'node': xmlValidGetValidElements(node->prev, node->next, ... |
| 4762 | * to prepend a child to 'node': xmlValidGetValidElements(NULL, node->childs, |
| 4763 | * to append a child to 'node': xmlValidGetValidElements(node->last, NULL, ... |
| 4764 | * |
| 4765 | * pointers to the element names are inserted at the beginning of the array |
| 4766 | * and do not need to be freed. |
| 4767 | * |
| 4768 | * returns the number of element in the list, or -1 in case of error. If |
| 4769 | * the function returns the value @max the caller is invited to grow the |
| 4770 | * receiving array and retry. |
| 4771 | */ |
| 4772 | |
| 4773 | int |
| 4774 | xmlValidGetValidElements(xmlNode *prev, xmlNode *next, const xmlChar **list, |
| 4775 | int max) { |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4776 | xmlValidCtxt vctxt; |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4777 | int nb_valid_elements = 0; |
| 4778 | const xmlChar *elements[256]; |
| 4779 | int nb_elements = 0, i; |
| 4780 | |
| 4781 | xmlNode *ref_node; |
| 4782 | xmlNode *parent; |
| 4783 | xmlNode *test_node; |
| 4784 | |
| 4785 | xmlNode *prev_next; |
| 4786 | xmlNode *next_prev; |
| 4787 | xmlNode *parent_childs; |
| 4788 | xmlNode *parent_last; |
| 4789 | |
| 4790 | xmlElement *element_desc; |
| 4791 | |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4792 | vctxt.userData = NULL; |
| 4793 | vctxt.error = NULL; |
| 4794 | vctxt.warning = NULL; |
| 4795 | |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4796 | if (prev == NULL && next == NULL) |
| 4797 | return(-1); |
| 4798 | |
| 4799 | if (list == NULL) return(-1); |
| 4800 | if (max <= 0) return(-1); |
| 4801 | |
| 4802 | nb_valid_elements = 0; |
| 4803 | ref_node = prev ? prev : next; |
| 4804 | parent = ref_node->parent; |
| 4805 | |
| 4806 | /* |
| 4807 | * Retrieves the parent element declaration |
| 4808 | */ |
| 4809 | element_desc = xmlGetDtdElementDesc(parent->doc->intSubset, |
| 4810 | parent->name); |
| 4811 | if ((element_desc == NULL) && (parent->doc->extSubset != NULL)) |
| 4812 | element_desc = xmlGetDtdElementDesc(parent->doc->extSubset, |
| 4813 | parent->name); |
| 4814 | if (element_desc == NULL) return(-1); |
| 4815 | |
| 4816 | /* |
| 4817 | * Do a backup of the current tree structure |
| 4818 | */ |
| 4819 | prev_next = prev ? prev->next : NULL; |
| 4820 | next_prev = next ? next->prev : NULL; |
| 4821 | parent_childs = parent->children; |
| 4822 | parent_last = parent->last; |
| 4823 | |
| 4824 | /* |
| 4825 | * Creates a dummy node and insert it into the tree |
| 4826 | */ |
| 4827 | test_node = xmlNewNode (NULL, BAD_CAST "<!dummy?>"); |
| 4828 | test_node->doc = ref_node->doc; |
| 4829 | test_node->parent = parent; |
| 4830 | test_node->prev = prev; |
| 4831 | test_node->next = next; |
| 4832 | |
| 4833 | if (prev) prev->next = test_node; |
| 4834 | else parent->children = test_node; |
| 4835 | |
| 4836 | if (next) next->prev = test_node; |
| 4837 | else parent->last = test_node; |
| 4838 | |
| 4839 | /* |
| 4840 | * Insert each potential child node and check if the parent is |
| 4841 | * still valid |
| 4842 | */ |
| 4843 | nb_elements = xmlValidGetPotentialChildren(element_desc->content, |
| 4844 | elements, &nb_elements, 256); |
| 4845 | |
| 4846 | for (i = 0;i < nb_elements;i++) { |
| 4847 | test_node->name = elements[i]; |
Daniel Veillard | f69bb4b | 2001-05-19 13:24:56 +0000 | [diff] [blame] | 4848 | if (xmlValidateOneElement(&vctxt, parent->doc, parent)) { |
Owen Taylor | 3473f88 | 2001-02-23 17:55:21 +0000 | [diff] [blame] | 4849 | int j; |
| 4850 | |
| 4851 | for (j = 0; j < nb_valid_elements;j++) |
| 4852 | if (xmlStrEqual(elements[i], list[j])) break; |
| 4853 | list[nb_valid_elements++] = elements[i]; |
| 4854 | if (nb_valid_elements >= max) break; |
| 4855 | } |
| 4856 | } |
| 4857 | |
| 4858 | /* |
| 4859 | * Restore the tree structure |
| 4860 | */ |
| 4861 | if (prev) prev->next = prev_next; |
| 4862 | if (next) next->prev = next_prev; |
| 4863 | parent->children = parent_childs; |
| 4864 | parent->last = parent_last; |
| 4865 | |
| 4866 | return(nb_valid_elements); |
| 4867 | } |