1 %{ 2 3 /* 4 * Copyright 2012 Hans Leidekker for CodeWeavers 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 */ 20 21 #include <stdarg.h> 22 23 #include "windef.h" 24 #include "winbase.h" 25 #include "wbemcli.h" 26 #include "wbemprox_private.h" 27 28 #include "wine/list.h" 29 #include "wine/debug.h" 30 31 WINE_DEFAULT_DEBUG_CHANNEL(wbemprox); 32 33 struct parser 34 { 35 const WCHAR *cmd; 36 UINT idx; 37 UINT len; 38 HRESULT error; 39 struct view **view; 40 struct list *mem; 41 }; 42 43 struct string 44 { 45 const WCHAR *data; 46 int len; 47 }; 48 49 static void *alloc_mem( struct parser *parser, UINT size ) 50 { 51 struct list *mem = heap_alloc( sizeof(struct list) + size ); 52 list_add_tail( parser->mem, mem ); 53 return &mem[1]; 54 } 55 56 static struct property *alloc_property( struct parser *parser, const WCHAR *class, const WCHAR *name ) 57 { 58 struct property *prop = alloc_mem( parser, sizeof(*prop) ); 59 if (prop) 60 { 61 prop->name = name; 62 prop->class = class; 63 prop->next = NULL; 64 } 65 return prop; 66 } 67 68 static struct keyword *alloc_keyword( struct parser *parser, const WCHAR *name, const WCHAR *value ) 69 { 70 struct keyword *keyword = alloc_mem( parser, sizeof(*keyword) ); 71 if (keyword) 72 { 73 keyword->name = name; 74 keyword->value = value; 75 keyword->next = NULL; 76 } 77 return keyword; 78 } 79 80 static WCHAR *get_string( struct parser *parser, const struct string *str ) 81 { 82 const WCHAR *p = str->data; 83 int len = str->len; 84 WCHAR *ret; 85 86 if ((p[0] == '\"' && p[len - 1] != '\"') || 87 (p[0] == '\'' && p[len - 1] != '\'')) return NULL; 88 if ((p[0] == '\"' && p[len - 1] == '\"') || 89 (p[0] == '\'' && p[len - 1] == '\'')) 90 { 91 p++; 92 len -= 2; 93 } 94 if (!(ret = alloc_mem( parser, (len + 1) * sizeof(WCHAR) ))) return NULL; 95 memcpy( ret, p, len * sizeof(WCHAR) ); 96 ret[len] = 0; 97 return ret; 98 } 99 100 static WCHAR *get_path( struct parser *parser, const struct string *str ) 101 { 102 const WCHAR *p = str->data; 103 int len = str->len; 104 WCHAR *ret; 105 106 if (p[0] == '{' && p[len - 1] == '}') 107 { 108 p++; 109 len -= 2; 110 } 111 112 if (!(ret = alloc_mem( parser, (len + 1) * sizeof(WCHAR) ))) return NULL; 113 memcpy( ret, p, len * sizeof(WCHAR) ); 114 ret[len] = 0; 115 return ret; 116 } 117 118 static int get_int( struct parser *parser ) 119 { 120 const WCHAR *p = &parser->cmd[parser->idx]; 121 int i, ret = 0; 122 123 for (i = 0; i < parser->len; i++) 124 { 125 if (p[i] < '0' || p[i] > '9') 126 { 127 ERR("should only be numbers here!\n"); 128 break; 129 } 130 ret = (p[i] - '0') + ret * 10; 131 } 132 return ret; 133 } 134 135 static struct expr *expr_complex( struct parser *parser, struct expr *l, UINT op, struct expr *r ) 136 { 137 struct expr *e = alloc_mem( parser, sizeof(*e) ); 138 if (e) 139 { 140 e->type = EXPR_COMPLEX; 141 e->u.expr.left = l; 142 e->u.expr.op = op; 143 e->u.expr.right = r; 144 } 145 return e; 146 } 147 148 static struct expr *expr_unary( struct parser *parser, struct expr *l, UINT op ) 149 { 150 struct expr *e = alloc_mem( parser, sizeof(*e) ); 151 if (e) 152 { 153 e->type = EXPR_UNARY; 154 e->u.expr.left = l; 155 e->u.expr.op = op; 156 e->u.expr.right = NULL; 157 } 158 return e; 159 } 160 161 static struct expr *expr_ival( struct parser *parser, int val ) 162 { 163 struct expr *e = alloc_mem( parser, sizeof *e ); 164 if (e) 165 { 166 e->type = EXPR_IVAL; 167 e->u.ival = val; 168 } 169 return e; 170 } 171 172 static struct expr *expr_sval( struct parser *parser, const struct string *str ) 173 { 174 struct expr *e = alloc_mem( parser, sizeof *e ); 175 if (e) 176 { 177 e->type = EXPR_SVAL; 178 e->u.sval = get_string( parser, str ); 179 if (!e->u.sval) 180 return NULL; /* e will be freed by query destructor */ 181 } 182 return e; 183 } 184 185 static struct expr *expr_bval( struct parser *parser, int val ) 186 { 187 struct expr *e = alloc_mem( parser, sizeof *e ); 188 if (e) 189 { 190 e->type = EXPR_BVAL; 191 e->u.ival = val; 192 } 193 return e; 194 } 195 196 static struct expr *expr_propval( struct parser *parser, const struct property *prop ) 197 { 198 struct expr *e = alloc_mem( parser, sizeof *e ); 199 if (e) 200 { 201 e->type = EXPR_PROPVAL; 202 e->u.propval = prop; 203 } 204 return e; 205 } 206 207 static int wql_error( struct parser *parser, const char *str ); 208 static int wql_lex( void *val, struct parser *parser ); 209 210 #define PARSER_BUBBLE_UP_VIEW( parser, result, current_view ) \ 211 *parser->view = current_view; \ 212 result = current_view 213 214 %} 215 216 %lex-param { struct parser *ctx } 217 %parse-param { struct parser *ctx } 218 %define parse.error verbose 219 %pure-parser 220 221 %union 222 { 223 struct string str; 224 WCHAR *string; 225 struct property *proplist; 226 struct keyword *keywordlist; 227 struct view *view; 228 struct expr *expr; 229 int integer; 230 } 231 232 %token TK_SELECT TK_FROM TK_STAR TK_COMMA TK_DOT TK_IS TK_LP TK_RP TK_NULL TK_FALSE TK_TRUE 233 %token TK_INTEGER TK_WHERE TK_SPACE TK_MINUS TK_ILLEGAL TK_BY TK_ASSOCIATORS TK_OF 234 %token <str> TK_STRING TK_ID TK_PATH 235 236 %type <string> id path 237 %type <proplist> prop proplist 238 %type <keywordlist> keyword keywordlist 239 %type <view> query select associatorsof 240 %type <expr> expr prop_val const_val string_val 241 %type <integer> number 242 243 %left TK_OR TK_AND TK_NOT TK_EQ TK_NE TK_LT TK_GT TK_LE TK_GE TK_LIKE 244 245 %% 246 247 query: 248 select 249 | 250 associatorsof 251 ; 252 253 path: 254 TK_PATH 255 { 256 $$ = get_path( ctx, &$1 ); 257 if (!$$) 258 YYABORT; 259 } 260 ; 261 262 keyword: 263 id 264 { 265 $$ = alloc_keyword( ctx, $1, NULL ); 266 if (!$$) 267 YYABORT; 268 } 269 | id TK_EQ id 270 { 271 $$ = alloc_keyword( ctx, $1, $3 ); 272 if (!$$) 273 YYABORT; 274 } 275 ; 276 277 keywordlist: 278 keyword 279 | keyword keywordlist 280 { 281 $1->next = $2; 282 } 283 ; 284 285 associatorsof: 286 TK_ASSOCIATORS TK_OF path 287 { 288 HRESULT hr; 289 struct parser *parser = ctx; 290 struct view *view; 291 292 hr = create_view( VIEW_TYPE_ASSOCIATORS, $3, NULL, NULL, NULL, NULL, &view ); 293 if (hr != S_OK) 294 YYABORT; 295 296 PARSER_BUBBLE_UP_VIEW( parser, $$, view ); 297 } 298 | TK_ASSOCIATORS TK_OF path TK_WHERE keywordlist 299 { 300 HRESULT hr; 301 struct parser *parser = ctx; 302 struct view *view; 303 304 hr = create_view( VIEW_TYPE_ASSOCIATORS, $3, $5, NULL, NULL, NULL, &view ); 305 if (hr != S_OK) 306 YYABORT; 307 308 PARSER_BUBBLE_UP_VIEW( parser, $$, view ); 309 } 310 ; 311 312 select: 313 TK_SELECT TK_FROM id 314 { 315 HRESULT hr; 316 struct parser *parser = ctx; 317 struct view *view; 318 319 hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $3, NULL, NULL, &view ); 320 if (hr != S_OK) 321 YYABORT; 322 323 PARSER_BUBBLE_UP_VIEW( parser, $$, view ); 324 } 325 | TK_SELECT proplist TK_FROM id 326 { 327 HRESULT hr; 328 struct parser *parser = ctx; 329 struct view *view; 330 331 hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $4, $2, NULL, &view ); 332 if (hr != S_OK) 333 YYABORT; 334 335 PARSER_BUBBLE_UP_VIEW( parser, $$, view ); 336 } 337 | TK_SELECT proplist TK_FROM id TK_WHERE expr 338 { 339 HRESULT hr; 340 struct parser *parser = ctx; 341 struct view *view; 342 343 hr = create_view( VIEW_TYPE_SELECT, NULL, NULL, $4, $2, $6, &view ); 344 if (hr != S_OK) 345 YYABORT; 346 347 PARSER_BUBBLE_UP_VIEW( parser, $$, view ); 348 } 349 ; 350 351 proplist: 352 prop 353 | prop TK_COMMA proplist 354 { 355 $1->next = $3; 356 } 357 | TK_STAR 358 { 359 $$ = NULL; 360 } 361 ; 362 363 prop: 364 id TK_DOT id 365 { 366 $$ = alloc_property( ctx, $1, $3 ); 367 if (!$$) 368 YYABORT; 369 } 370 | id 371 { 372 $$ = alloc_property( ctx, NULL, $1 ); 373 if (!$$) 374 YYABORT; 375 } 376 ; 377 378 id: 379 TK_ID 380 { 381 $$ = get_string( ctx, &$1 ); 382 if (!$$) 383 YYABORT; 384 } 385 ; 386 387 number: 388 TK_INTEGER 389 { 390 $$ = get_int( ctx ); 391 } 392 ; 393 394 expr: 395 TK_LP expr TK_RP 396 { 397 $$ = $2; 398 if (!$$) 399 YYABORT; 400 } 401 | expr TK_AND expr 402 { 403 $$ = expr_complex( ctx, $1, OP_AND, $3 ); 404 if (!$$) 405 YYABORT; 406 } 407 | expr TK_OR expr 408 { 409 $$ = expr_complex( ctx, $1, OP_OR, $3 ); 410 if (!$$) 411 YYABORT; 412 } 413 | TK_NOT expr 414 { 415 $$ = expr_unary( ctx, $2, OP_NOT ); 416 if (!$$) 417 YYABORT; 418 } 419 | prop_val TK_EQ const_val 420 { 421 $$ = expr_complex( ctx, $1, OP_EQ, $3 ); 422 if (!$$) 423 YYABORT; 424 } 425 | prop_val TK_GT const_val 426 { 427 $$ = expr_complex( ctx, $1, OP_GT, $3 ); 428 if (!$$) 429 YYABORT; 430 } 431 | prop_val TK_LT const_val 432 { 433 $$ = expr_complex( ctx, $1, OP_LT, $3 ); 434 if (!$$) 435 YYABORT; 436 } 437 | prop_val TK_LE const_val 438 { 439 $$ = expr_complex( ctx, $1, OP_LE, $3 ); 440 if (!$$) 441 YYABORT; 442 } 443 | prop_val TK_GE const_val 444 { 445 $$ = expr_complex( ctx, $1, OP_GE, $3 ); 446 if (!$$) 447 YYABORT; 448 } 449 | prop_val TK_NE const_val 450 { 451 $$ = expr_complex( ctx, $1, OP_NE, $3 ); 452 if (!$$) 453 YYABORT; 454 } 455 | const_val TK_EQ prop_val 456 { 457 $$ = expr_complex( ctx, $1, OP_EQ, $3 ); 458 if (!$$) 459 YYABORT; 460 } 461 | const_val TK_GT prop_val 462 { 463 $$ = expr_complex( ctx, $1, OP_GT, $3 ); 464 if (!$$) 465 YYABORT; 466 } 467 | const_val TK_LT prop_val 468 { 469 $$ = expr_complex( ctx, $1, OP_LT, $3 ); 470 if (!$$) 471 YYABORT; 472 } 473 | const_val TK_LE prop_val 474 { 475 $$ = expr_complex( ctx, $1, OP_LE, $3 ); 476 if (!$$) 477 YYABORT; 478 } 479 | const_val TK_GE prop_val 480 { 481 $$ = expr_complex( ctx, $1, OP_GE, $3 ); 482 if (!$$) 483 YYABORT; 484 } 485 | const_val TK_NE prop_val 486 { 487 $$ = expr_complex( ctx, $1, OP_NE, $3 ); 488 if (!$$) 489 YYABORT; 490 } 491 | prop_val TK_LIKE string_val 492 { 493 $$ = expr_complex( ctx, $1, OP_LIKE, $3 ); 494 if (!$$) 495 YYABORT; 496 } 497 | prop_val TK_IS TK_NULL 498 { 499 $$ = expr_unary( ctx, $1, OP_ISNULL ); 500 if (!$$) 501 YYABORT; 502 } 503 | prop_val TK_IS TK_NOT TK_NULL 504 { 505 $$ = expr_unary( ctx, $1, OP_NOTNULL ); 506 if (!$$) 507 YYABORT; 508 } 509 | prop_val TK_EQ TK_NULL 510 { 511 $$ = expr_unary( ctx, $1, OP_ISNULL ); 512 if (!$$) 513 YYABORT; 514 } 515 | TK_NULL TK_EQ prop_val 516 { 517 $$ = expr_unary( ctx, $3, OP_ISNULL ); 518 if (!$$) 519 YYABORT; 520 } 521 | prop_val TK_NE TK_NULL 522 { 523 $$ = expr_unary( ctx, $1, OP_NOTNULL ); 524 if (!$$) 525 YYABORT; 526 } 527 | TK_NULL TK_NE prop_val 528 { 529 $$ = expr_unary( ctx, $3, OP_NOTNULL ); 530 if (!$$) 531 YYABORT; 532 } 533 ; 534 535 string_val: 536 TK_STRING 537 { 538 $$ = expr_sval( ctx, &$1 ); 539 if (!$$) 540 YYABORT; 541 } 542 ; 543 544 prop_val: 545 prop 546 { 547 $$ = expr_propval( ctx, $1 ); 548 if (!$$) 549 YYABORT; 550 } 551 ; 552 553 const_val: 554 number 555 { 556 $$ = expr_ival( ctx, $1 ); 557 if (!$$) 558 YYABORT; 559 } 560 | TK_STRING 561 { 562 $$ = expr_sval( ctx, &$1 ); 563 if (!$$) 564 YYABORT; 565 } 566 | TK_TRUE 567 { 568 $$ = expr_bval( ctx, -1 ); 569 if (!$$) 570 YYABORT; 571 } 572 | TK_FALSE 573 { 574 $$ = expr_bval( ctx, 0 ); 575 if (!$$) 576 YYABORT; 577 } 578 ; 579 580 %% 581 582 HRESULT parse_query( const WCHAR *str, struct view **view, struct list *mem ) 583 { 584 struct parser parser; 585 int ret; 586 587 *view = NULL; 588 589 parser.cmd = str; 590 parser.idx = 0; 591 parser.len = 0; 592 parser.error = WBEM_E_INVALID_QUERY; 593 parser.view = view; 594 parser.mem = mem; 595 596 ret = wql_parse( &parser ); 597 TRACE("wql_parse returned %d\n", ret); 598 if (ret) 599 { 600 if (*parser.view) 601 { 602 destroy_view( *parser.view ); 603 *parser.view = NULL; 604 } 605 return parser.error; 606 } 607 return S_OK; 608 } 609 610 static const char id_char[] = 611 { 612 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 613 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 614 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 615 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 616 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 617 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 618 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 619 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 620 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 621 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 622 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 623 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 624 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 625 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 626 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 627 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 628 }; 629 630 struct wql_keyword 631 { 632 const WCHAR *name; 633 unsigned int len; 634 int type; 635 }; 636 637 #define MIN_TOKEN_LEN 2 638 #define MAX_TOKEN_LEN 11 639 640 static const WCHAR andW[] = {'A','N','D'}; 641 static const WCHAR associatorsW[] = {'A','S','S','O','C','I','A','T','O','R','S'}; 642 static const WCHAR byW[] = {'B','Y'}; 643 static const WCHAR falseW[] = {'F','A','L','S','E'}; 644 static const WCHAR fromW[] = {'F','R','O','M'}; 645 static const WCHAR isW[] = {'I','S'}; 646 static const WCHAR likeW[] = {'L','I','K','E'}; 647 static const WCHAR notW[] = {'N','O','T'}; 648 static const WCHAR nullW[] = {'N','U','L','L'}; 649 static const WCHAR ofW[] = {'O','F'}; 650 static const WCHAR orW[] = {'O','R'}; 651 static const WCHAR selectW[] = {'S','E','L','E','C','T'}; 652 static const WCHAR trueW[] = {'T','R','U','E'}; 653 static const WCHAR whereW[] = {'W','H','E','R','E'}; 654 655 static const struct wql_keyword keyword_table[] = 656 { 657 { andW, ARRAY_SIZE(andW), TK_AND }, 658 { associatorsW, ARRAY_SIZE(associatorsW), TK_ASSOCIATORS }, 659 { byW, ARRAY_SIZE(byW), TK_BY }, 660 { falseW, ARRAY_SIZE(falseW), TK_FALSE }, 661 { fromW, ARRAY_SIZE(fromW), TK_FROM }, 662 { isW, ARRAY_SIZE(isW), TK_IS }, 663 { likeW, ARRAY_SIZE(likeW), TK_LIKE }, 664 { notW, ARRAY_SIZE(notW), TK_NOT }, 665 { nullW, ARRAY_SIZE(nullW), TK_NULL }, 666 { ofW, ARRAY_SIZE(ofW), TK_OF }, 667 { orW, ARRAY_SIZE(orW), TK_OR }, 668 { selectW, ARRAY_SIZE(selectW), TK_SELECT }, 669 { trueW, ARRAY_SIZE(trueW), TK_TRUE }, 670 { whereW, ARRAY_SIZE(whereW), TK_WHERE } 671 }; 672 673 static int __cdecl cmp_keyword( const void *arg1, const void *arg2 ) 674 { 675 const struct wql_keyword *key1 = arg1, *key2 = arg2; 676 int len = min( key1->len, key2->len ); 677 int ret; 678 679 if ((ret = _wcsnicmp( key1->name, key2->name, len ))) return ret; 680 if (key1->len < key2->len) return -1; 681 else if (key1->len > key2->len) return 1; 682 return 0; 683 } 684 685 static int keyword_type( const WCHAR *str, unsigned int len ) 686 { 687 struct wql_keyword key, *ret; 688 689 if (len < MIN_TOKEN_LEN || len > MAX_TOKEN_LEN) return TK_ID; 690 691 key.name = str; 692 key.len = len; 693 key.type = 0; 694 ret = bsearch( &key, keyword_table, ARRAY_SIZE(keyword_table), sizeof(struct wql_keyword), cmp_keyword ); 695 if (ret) return ret->type; 696 return TK_ID; 697 } 698 699 static int get_token( const WCHAR *s, int *token ) 700 { 701 int i; 702 703 switch (*s) 704 { 705 case ' ': 706 case '\t': 707 case '\r': 708 case '\n': 709 for (i = 1; iswspace( s[i] ); i++) {} 710 *token = TK_SPACE; 711 return i; 712 case '-': 713 if (!s[1]) return -1; 714 *token = TK_MINUS; 715 return 1; 716 case '(': 717 *token = TK_LP; 718 return 1; 719 case ')': 720 *token = TK_RP; 721 return 1; 722 case '{': 723 for (i = 1; s[i] && s[i] != '}'; i++) {} 724 if (s[i] != '}') 725 { 726 *token = TK_ILLEGAL; 727 return i; 728 } 729 *token = TK_PATH; 730 return i + 1; 731 case '*': 732 *token = TK_STAR; 733 return 1; 734 case '=': 735 *token = TK_EQ; 736 return 1; 737 case '<': 738 if (s[1] == '=' ) 739 { 740 *token = TK_LE; 741 return 2; 742 } 743 else if (s[1] == '>') 744 { 745 *token = TK_NE; 746 return 2; 747 } 748 else 749 { 750 *token = TK_LT; 751 return 1; 752 } 753 case '>': 754 if (s[1] == '=') 755 { 756 *token = TK_GE; 757 return 2; 758 } 759 else 760 { 761 *token = TK_GT; 762 return 1; 763 } 764 case '!': 765 if (s[1] != '=') 766 { 767 *token = TK_ILLEGAL; 768 return 2; 769 } 770 else 771 { 772 *token = TK_NE; 773 return 2; 774 } 775 case ',': 776 *token = TK_COMMA; 777 return 1; 778 case '\"': 779 case '\'': 780 for (i = 1; s[i]; i++) 781 { 782 if (s[i] == s[0]) break; 783 } 784 if (s[i]) i++; 785 *token = TK_STRING; 786 return i; 787 case '.': 788 if (!iswdigit( s[1] )) 789 { 790 *token = TK_DOT; 791 return 1; 792 } 793 /* fall through */ 794 case '0': case '1': case '2': case '3': case '4': 795 case '5': case '6': case '7': case '8': case '9': 796 *token = TK_INTEGER; 797 for (i = 1; iswdigit( s[i] ); i++) {} 798 return i; 799 default: 800 if (!id_char[*s]) break; 801 802 for (i = 1; id_char[s[i]]; i++) {} 803 *token = keyword_type( s, i ); 804 return i; 805 } 806 *token = TK_ILLEGAL; 807 return 1; 808 } 809 810 static int wql_lex( void *p, struct parser *parser ) 811 { 812 struct string *str = p; 813 int token = -1; 814 do 815 { 816 parser->idx += parser->len; 817 if (!parser->cmd[parser->idx]) return 0; 818 parser->len = get_token( &parser->cmd[parser->idx], &token ); 819 if (!parser->len) break; 820 821 str->data = &parser->cmd[parser->idx]; 822 str->len = parser->len; 823 } while (token == TK_SPACE); 824 return token; 825 } 826 827 static int wql_error( struct parser *parser, const char *str ) 828 { 829 ERR("%s\n", str); 830 return 0; 831 } 832