129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
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/***
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*xstrcoll.c - Collate locale strings
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Compare two strings using the locale LC_COLLATE information.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <string.h>
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#include <xlocinfo.h> /* for _Collvec, _Strcoll */
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#include <windows.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include <locale.h>
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#include <mtdll.h>
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#include <setlocal.h>
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#include <errno.h>
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#include <awint.h>
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/***
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*int _Strcoll() - Collate locale strings
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*
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*Purpose:
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* Compare two strings using the locale LC_COLLATE information.
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* [ANSI].
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*
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* Non-C locale support available under _INTL switch.
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* In the C locale, strcoll() simply resolves to strcmp().
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*Entry:
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* const char *s1b = pointer to beginning of the first string
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* const char *s1e = pointer past end of the first string
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* const char *s2b = pointer to beginning of the second string
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* const char *s1e = pointer past end of the second string
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* const _Collvec *ploc = pointer to locale info
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*
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*Exit:
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* Less than 0 = first string less than second string
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* 0 = strings are equal
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* Greater than 0 = first string greater than second string
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*
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*Exceptions:
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* _NLSCMPERROR = error
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* errno = EINVAL
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*
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*******************************************************************************/
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_CRTIMP2_PURE int __CLRCALL_PURE_OR_CDECL _Strcoll (
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const char *_string1,
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const char *_end1,
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const char *_string2,
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const char *_end2,
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const _Collvec *ploc
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)
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{
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int ret=0;
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UINT codepage;
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int n1 = (int)(_end1 - _string1);
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int n2 = (int)(_end2 - _string2);
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const wchar_t *locale_name;
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if (ploc == 0)
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{
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locale_name = ___lc_locale_name_func()[LC_COLLATE];
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codepage = ___lc_collate_cp_func();
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}
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else
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{
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locale_name = ploc->_LocaleName;
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codepage = ploc->_Page;
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}
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if (locale_name == NULL)
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{
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int ans;
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ans = memcmp(_string1, _string2, n1 < n2 ? n1 : n2);
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ret=(ans != 0 || n1 == n2 ? ans : n1 < n2 ? -1 : +1);
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}
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else
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{
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if ( 0 == (ret = __crtCompareStringA( NULL,
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locale_name,
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SORT_STRINGSORT,
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_string1,
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n1,
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_string2,
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n2,
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codepage )) )
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{
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errno=EINVAL;
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ret=_NLSCMPERROR;
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}
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else
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{
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ret-=2;
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}
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}
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return ret;
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}
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/***
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*_Collvec _Getcoll() - get collation info for current locale
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*
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*Purpose:
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*
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*Entry:
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*
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*Exit:
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*
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*Exceptions:
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*
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*******************************************************************************/
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_CRTIMP2_PURE _Collvec __CLRCALL_PURE_OR_CDECL _Getcoll()
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{
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_Collvec coll;
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coll._Page = ___lc_collate_cp_func();
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coll._LocaleName = ___lc_locale_name_func()[LC_COLLATE];
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if (coll._LocaleName)
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coll._LocaleName = _wcsdup(coll._LocaleName);
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return (coll);
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}
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