4 * Implementation of the Microsoft Installer (msi.dll)
6 * Copyright 2003 Mike McCormack for CodeWeavers
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
31 #include "wine/debug.h"
32 #include "wine/unicode.h"
38 #define YYLEX_PARAM info
39 #define YYPARSE_PARAM info
41 static int COND_error(char *str);
43 WINE_DEFAULT_DEBUG_CHANNEL(msi);
45 typedef struct tag_yyinput
58 static LPWSTR COND_GetString( struct cond_str *str );
59 static LPWSTR COND_GetLiteral( struct cond_str *str );
60 static int COND_lex( void *COND_lval, COND_input *info);
62 typedef INT (*comp_int)(INT a, INT b);
63 typedef INT (*comp_str)(LPWSTR a, LPWSTR b, BOOL caseless);
64 typedef INT (*comp_m1)(LPWSTR a,int b);
65 typedef INT (*comp_m2)(int a,LPWSTR b);
67 static INT comp_lt_i(INT a, INT b);
68 static INT comp_gt_i(INT a, INT b);
69 static INT comp_le_i(INT a, INT b);
70 static INT comp_ge_i(INT a, INT b);
71 static INT comp_eq_i(INT a, INT b);
72 static INT comp_ne_i(INT a, INT b);
73 static INT comp_bitand(INT a, INT b);
74 static INT comp_highcomp(INT a, INT b);
75 static INT comp_lowcomp(INT a, INT b);
77 static INT comp_eq_s(LPWSTR a, LPWSTR b, BOOL casless);
78 static INT comp_ne_s(LPWSTR a, LPWSTR b, BOOL casless);
79 static INT comp_lt_s(LPWSTR a, LPWSTR b, BOOL casless);
80 static INT comp_gt_s(LPWSTR a, LPWSTR b, BOOL casless);
81 static INT comp_le_s(LPWSTR a, LPWSTR b, BOOL casless);
82 static INT comp_ge_s(LPWSTR a, LPWSTR b, BOOL casless);
83 static INT comp_substring(LPWSTR a, LPWSTR b, BOOL casless);
84 static INT comp_start(LPWSTR a, LPWSTR b, BOOL casless);
85 static INT comp_end(LPWSTR a, LPWSTR b, BOOL casless);
87 static INT comp_eq_m1(LPWSTR a, INT b);
88 static INT comp_ne_m1(LPWSTR a, INT b);
89 static INT comp_lt_m1(LPWSTR a, INT b);
90 static INT comp_gt_m1(LPWSTR a, INT b);
91 static INT comp_le_m1(LPWSTR a, INT b);
92 static INT comp_ge_m1(LPWSTR a, INT b);
94 static INT comp_eq_m2(INT a, LPWSTR b);
95 static INT comp_ne_m2(INT a, LPWSTR b);
96 static INT comp_lt_m2(INT a, LPWSTR b);
97 static INT comp_gt_m2(INT a, LPWSTR b);
98 static INT comp_le_m2(INT a, LPWSTR b);
99 static INT comp_ge_m2(INT a, LPWSTR b);
110 comp_int fn_comp_int;
111 comp_str fn_comp_str;
116 %token COND_SPACE COND_EOF COND_SPACE
117 %token COND_OR COND_AND COND_NOT
118 %token COND_LT COND_GT COND_EQ
119 %token COND_LPAR COND_RPAR COND_TILDA
120 %token COND_PERCENT COND_DOLLARS COND_QUESTION COND_AMPER COND_EXCLAM
121 %token <str> COND_IDENT <str> COND_NUMBER <str> COND_LITER
123 %nonassoc COND_EOF COND_ERROR
125 %type <value> expression boolean_term boolean_factor
126 %type <value> term value_i symbol_i integer
127 %type <string> identifier value_s symbol_s literal
128 %type <fn_comp_int> comp_op_i
129 %type <fn_comp_str> comp_op_s
130 %type <fn_comp_m1> comp_op_m1
131 %type <fn_comp_m2> comp_op_m2
138 COND_input* cond = (COND_input*) info;
148 | boolean_term COND_OR expression
159 | boolean_term COND_AND boolean_factor
184 $$ = $1[0] ? MSICONDITION_TRUE : MSICONDITION_FALSE;
186 | value_i comp_op_i value_i
190 | value_s comp_op_s value_s
192 $$ = $2( $1, $3, FALSE );
194 | value_s COND_TILDA comp_op_s value_s
196 $$ = $3( $1, $4, TRUE );
198 | value_s comp_op_m1 value_i
202 | value_i comp_op_m2 value_s
206 | COND_LPAR expression COND_RPAR
213 /* common functions */
254 /* common functions */
295 /* common functions */
320 /*Not valid for mixed compares*/
336 /* common functions */
361 /*Not valid for mixed compares*/
401 $$ = COND_GetLiteral(&$1);
408 COND_DOLLARS identifier
410 COND_input* cond = (COND_input*) info;
411 INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
413 MSI_GetComponentStateW(cond->package, $2, &install, &action );
415 HeapFree( GetProcessHeap(), 0, $2 );
417 | COND_QUESTION identifier
419 COND_input* cond = (COND_input*) info;
420 INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
422 MSI_GetComponentStateW(cond->package, $2, &install, &action );
424 HeapFree( GetProcessHeap(), 0, $2 );
426 | COND_AMPER identifier
428 COND_input* cond = (COND_input*) info;
429 INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
431 MSI_GetFeatureStateW(cond->package, $2, &install, &action );
433 HeapFree( GetProcessHeap(), 0, $2 );
435 | COND_EXCLAM identifier
437 COND_input* cond = (COND_input*) info;
438 INSTALLSTATE install = INSTALLSTATE_UNKNOWN, action = INSTALLSTATE_UNKNOWN;
440 MSI_GetFeatureStateW(cond->package, $2, &install, &action );
442 HeapFree( GetProcessHeap(), 0, $2 );
450 COND_input* cond = (COND_input*) info;
453 MSI_GetPropertyW(cond->package, $1, NULL, &sz);
456 $$ = HeapAlloc( GetProcessHeap(), 0 ,sizeof(WCHAR));
462 $$ = HeapAlloc( GetProcessHeap(), 0, sz*sizeof (WCHAR) );
464 /* Lookup the identifier */
466 MSI_GetPropertyW(cond->package,$1,$$,&sz);
468 HeapFree( GetProcessHeap(), 0, $1 );
470 | COND_PERCENT identifier
472 UINT len = GetEnvironmentVariableW( $2, NULL, 0 );
475 $$ = HeapAlloc( GetProcessHeap(), 0, len*sizeof (WCHAR) );
477 GetEnvironmentVariableW( $2, $$, len );
479 HeapFree( GetProcessHeap(), 0, $2 );
486 $$ = COND_GetString(&$1);
495 LPWSTR szNum = COND_GetString(&$1);
499 HeapFree( GetProcessHeap(), 0, szNum );
506 static int COND_IsAlpha( WCHAR x )
508 return( ( ( x >= 'A' ) && ( x <= 'Z' ) ) ||
509 ( ( x >= 'a' ) && ( x <= 'z' ) ) ||
513 static int COND_IsNumber( WCHAR x )
515 return( (( x >= '0' ) && ( x <= '9' )) || (x =='-') || (x =='.') );
519 /* the mess of comparison functions */
521 static INT comp_lt_i(INT a, INT b)
523 static INT comp_gt_i(INT a, INT b)
525 static INT comp_le_i(INT a, INT b)
527 static INT comp_ge_i(INT a, INT b)
529 static INT comp_eq_i(INT a, INT b)
531 static INT comp_ne_i(INT a, INT b)
533 static INT comp_bitand(INT a, INT b)
535 static INT comp_highcomp(INT a, INT b)
536 { return HIWORD(a)==b; }
537 static INT comp_lowcomp(INT a, INT b)
538 { return LOWORD(a)==b; }
540 static INT comp_eq_s(LPWSTR a, LPWSTR b, BOOL casless)
541 { if (casless) return !strcmpiW(a,b); else return !strcmpW(a,b);}
542 static INT comp_ne_s(LPWSTR a, LPWSTR b, BOOL casless)
543 { if (casless) return strcmpiW(a,b); else return strcmpW(a,b);}
544 static INT comp_lt_s(LPWSTR a, LPWSTR b, BOOL casless)
545 { if (casless) return strcmpiW(a,b)<0; else return strcmpW(a,b)<0;}
546 static INT comp_gt_s(LPWSTR a, LPWSTR b, BOOL casless)
547 { if (casless) return strcmpiW(a,b)>0; else return strcmpW(a,b)>0;}
548 static INT comp_le_s(LPWSTR a, LPWSTR b, BOOL casless)
549 { if (casless) return strcmpiW(a,b)<=0; else return strcmpW(a,b)<=0;}
550 static INT comp_ge_s(LPWSTR a, LPWSTR b, BOOL casless)
551 { if (casless) return strcmpiW(a,b)>=0; else return strcmpW(a,b)>=0;}
552 static INT comp_substring(LPWSTR a, LPWSTR b, BOOL casless)
553 /* ERROR NOT WORKING REWRITE */
554 { if (casless) return strstrW(a,b)!=NULL; else return strstrW(a,b)!=NULL;}
555 static INT comp_start(LPWSTR a, LPWSTR b, BOOL casless)
556 { if (casless) return strncmpiW(a,b,strlenW(b))==0;
557 else return strncmpW(a,b,strlenW(b))==0;}
558 static INT comp_end(LPWSTR a, LPWSTR b, BOOL casless)
564 if (casless) return (!strcmpiW(&a[i-j-1],b));
565 else return (!strcmpW(&a[i-j-1],b));
569 static INT comp_eq_m1(LPWSTR a, INT b)
570 { if (COND_IsNumber(a[0])) return atoiW(a)==b; else return 0;}
571 static INT comp_ne_m1(LPWSTR a, INT b)
572 { if (COND_IsNumber(a[0])) return atoiW(a)!=b; else return 1;}
573 static INT comp_lt_m1(LPWSTR a, INT b)
574 { if (COND_IsNumber(a[0])) return atoiW(a)<b; else return 0;}
575 static INT comp_gt_m1(LPWSTR a, INT b)
576 { if (COND_IsNumber(a[0])) return atoiW(a)>b; else return 0;}
577 static INT comp_le_m1(LPWSTR a, INT b)
578 { if (COND_IsNumber(a[0])) return atoiW(a)<=b; else return 0;}
579 static INT comp_ge_m1(LPWSTR a, INT b)
580 { if (COND_IsNumber(a[0])) return atoiW(a)>=b; else return 0;}
582 static INT comp_eq_m2(INT a, LPWSTR b)
583 { if (COND_IsNumber(b[0])) return a == atoiW(b); else return 0;}
584 static INT comp_ne_m2(INT a, LPWSTR b)
585 { if (COND_IsNumber(b[0])) return a != atoiW(b); else return 1;}
586 static INT comp_lt_m2(INT a, LPWSTR b)
587 { if (COND_IsNumber(b[0])) return a < atoiW(b); else return 0;}
588 static INT comp_gt_m2(INT a, LPWSTR b)
589 { if (COND_IsNumber(b[0])) return a > atoiW(b); else return 0;}
590 static INT comp_le_m2(INT a, LPWSTR b)
591 { if (COND_IsNumber(b[0])) return a <= atoiW(b); else return 0;}
592 static INT comp_ge_m2(INT a, LPWSTR b)
593 { if (COND_IsNumber(b[0])) return a >= atoiW(b); else return 0;}
597 static int COND_IsIdent( WCHAR x )
599 return( COND_IsAlpha( x ) || COND_IsNumber( x ) || ( x == '_' )
600 || ( x == '#' ) || (x == '.') );
603 static int COND_GetOne( struct cond_str *str, COND_input *cond )
605 static const WCHAR szNot[] = {'N','O','T',0};
606 static const WCHAR szAnd[] = {'A','N','D',0};
607 static const WCHAR szOr[] = {'O','R',0};
611 str->data = &cond->str[cond->n];
617 case '(': rc = COND_LPAR; break;
618 case ')': rc = COND_RPAR; break;
619 case '&': rc = COND_AMPER; break;
620 case '!': rc = COND_EXCLAM; break;
621 case '$': rc = COND_DOLLARS; break;
622 case '?': rc = COND_QUESTION; break;
623 case '%': rc = COND_PERCENT; break;
624 case ' ': rc = COND_SPACE; break;
625 case '=': rc = COND_EQ; break;
626 case '~': rc = COND_TILDA; break;
627 case '<': rc = COND_LT; break;
628 case '>': rc = COND_GT; break;
631 const WCHAR *ch2 = str->data + 1;
634 while ( *ch2 && *ch2 != '"' )
638 len = ch2 - str->data + 1;
643 ERR("Unterminated string\n");
647 if( COND_IsAlpha( ch ) )
649 while( COND_IsIdent( str->data[len] ) )
655 if( COND_IsNumber( ch ) )
657 while( COND_IsNumber( str->data[len] ) )
663 ERR("Got unknown character %c(%x)\n",ch,ch);
668 /* keyword identifiers */
669 if( rc == COND_IDENT )
671 if( (len==3) && (strncmpiW(str->data,szNot,len)==0) )
673 else if( (len==3) && (strncmpiW(str->data,szAnd,len)==0) )
675 else if( (len==2) && (strncmpiW(str->data,szOr,len)==0) )
685 static int COND_lex( void *COND_lval, COND_input *cond )
688 struct cond_str *str = COND_lval;
691 rc = COND_GetOne( str, cond );
692 } while (rc == COND_SPACE);
697 static LPWSTR COND_GetString( struct cond_str *str )
701 ret = HeapAlloc( GetProcessHeap(), 0, (str->len+1) * sizeof (WCHAR) );
704 memcpy( ret, str->data, str->len * sizeof(WCHAR));
707 TRACE("Got identifier %s\n",debugstr_w(ret));
711 static LPWSTR COND_GetLiteral( struct cond_str *str )
715 ret = HeapAlloc( GetProcessHeap(), 0, (str->len-1) * sizeof (WCHAR) );
718 memcpy( ret, str->data+1, (str->len-2) * sizeof(WCHAR) );
721 TRACE("Got literal %s\n",debugstr_w(ret));
725 static int COND_error(char *str)
730 MSICONDITION MSI_EvaluateConditionW( MSIPACKAGE *package, LPCWSTR szCondition )
735 cond.package = package;
736 cond.str = szCondition;
740 TRACE("Evaluating %s\n",debugstr_w(szCondition));
742 if( szCondition && !COND_parse( &cond ) )
745 r = MSICONDITION_ERROR;
747 TRACE("Evaluates to %i\n",r);
751 MSICONDITION WINAPI MsiEvaluateConditionW( MSIHANDLE hInstall, LPCWSTR szCondition )
756 package = msihandle2msiinfo( hInstall, MSIHANDLETYPE_PACKAGE);
758 return ERROR_INVALID_HANDLE;
759 ret = MSI_EvaluateConditionW( package, szCondition );
760 msiobj_release( &package->hdr );
764 MSICONDITION WINAPI MsiEvaluateConditionA( MSIHANDLE hInstall, LPCSTR szCondition )
766 LPWSTR szwCond = NULL;
771 UINT len = MultiByteToWideChar( CP_ACP, 0, szCondition, -1, NULL, 0 );
772 szwCond = HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
773 MultiByteToWideChar( CP_ACP, 0, szCondition, -1, szwCond, len );
776 r = MsiEvaluateConditionW( hInstall, szwCond );
778 HeapFree( GetProcessHeap(), 0, szwCond );