Something went wrong. Try again.
Reactos
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148/****strxfrm.c - Transform a string using locale information** Copyright (c) Microsoft Corporation. All rights reserved.**Purpose:* Transform a string using the locale information as set by* LC_COLLATE.********************************************************************************/#include <corecrt_internal.h>#include <ctype.h>#include <locale.h>#include <string.h>
/****size_t strxfrm() - Transform a string using locale information**Purpose:* Transform the string pointed to by _string2 and place the* resulting string into the array pointed to by _string1.* No more than _count characters are place into the* resulting string (including the null).** The transformation is such that if strcmp() is applied to* the two transformed strings, the return value is equal to* the result of strcoll() applied to the two original strings.* Thus, the conversion must take the locale LC_COLLATE info* into account.* [ANSI]** The value of the following expression is the size of the array* needed to hold the transformation of the source string:** 1 + strxfrm(nullptr,string,0)**Entry:* char *_string1 = result string* const char *_string2 = source string* size_t _count = max chars to move** [If _count is 0, _string1 is permitted to be nullptr.]**Exit:* Length of the transformed string (not including the terminating* null). If the value returned is >= _count, the contents of the* _string1 array are indeterminate.**Exceptions:* Non-standard: if OM/API error, return INT_MAX.* Input parameters are validated. Refer to the validation section of the function.********************************************************************************/
extern "C" size_t __cdecl _strxfrm_l ( char *_string1, const char *_string2, size_t _count, _locale_t plocinfo ){ int dstlen; size_t retval = INT_MAX; /* NON-ANSI: default if OM or API error */ _LocaleUpdate _loc_update(plocinfo);
/* validation section */ _VALIDATE_RETURN(_count <= INT_MAX, EINVAL, INT_MAX); _VALIDATE_RETURN(_string1 != nullptr || _count == 0, EINVAL, INT_MAX); _VALIDATE_RETURN(_string2 != nullptr, EINVAL, INT_MAX);
/* pre-init output in case of error */ if(_string1!=nullptr && _count>0) { *_string1='\0'; }
if ( (_loc_update.GetLocaleT()->locinfo->locale_name[LC_COLLATE] == nullptr) && (_loc_update.GetLocaleT()->locinfo->lc_collate_cp == CP_ACP) ) {_BEGIN_SECURE_CRT_DEPRECATION_DISABLE strncpy(_string1, _string2, _count);_END_SECURE_CRT_DEPRECATION_DISABLE return strlen(_string2); }
/* Inquire size of dst string in BYTES */ if ( 0 == (dstlen = __acrt_LCMapStringA( _loc_update.GetLocaleT(), _loc_update.GetLocaleT()->locinfo->locale_name[LC_COLLATE], LCMAP_SORTKEY, _string2, -1, nullptr, 0, _loc_update.GetLocaleT()->locinfo->lc_collate_cp, TRUE )) ) { errno = EILSEQ; return INT_MAX; }
retval = (size_t)dstlen;
/* if not enough room, return amount needed */ if ( retval > _count ) { if (_string1 != nullptr && _count > 0) { *_string1 = '\0'; errno = ERANGE; } /* the return value is the string length (without the terminating 0) */ retval--; return retval; }
/* Map src string to dst string */ if ( 0 == __acrt_LCMapStringA( _loc_update.GetLocaleT(), _loc_update.GetLocaleT()->locinfo->locale_name[LC_COLLATE], LCMAP_SORTKEY, _string2, -1, _string1, (int)_count, _loc_update.GetLocaleT()->locinfo->lc_collate_cp, TRUE ) ) { errno = EILSEQ; return INT_MAX; } /* the return value is the string length (without the terminating 0) */ retval--;
return retval;}
extern "C" size_t __cdecl strxfrm ( char *_string1, const char *_string2, size_t _count ){
return _strxfrm_l(_string1, _string2, _count, nullptr);
}