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