106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
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/***
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*wcsupr.c - routine to map lower-case characters in a wchar_t string
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* to upper-case
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*
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* Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Converts all the lower case characters in a wchar_t string
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* to upper case, in place.
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*
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*Revision History:
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* 09-09-91 ETC Created from strupr.c and wcslwr.c
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# 04-06-92 KRS Make work without _INTL also.
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# 08-19-92 KRS Activate NLS support.
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* 08-22-92 SRW Allow INTL definition to be conditional for building ntcrt.lib
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* 09-02-92 SRW Get _INTL definition via ..\crt32.def
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* 02-16-93 CFW Optimize test for lowercase in "C" locale.
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* 06-02-93 SRW ignore _INTL if _NTSUBSET_ defined.
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*
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*******************************************************************************/
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#include <windows.h>
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#include <cruntime.h>
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#include <string.h>
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#include <malloc.h>
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#include <locale.h>
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#include <ctype.h>
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#include <setlocal.h>
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#include <os2dll.h>
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/***
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*wchar_t *_wcsupr(string) - map lower-case characters in a string to upper-case
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*
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*Purpose:
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* wcsupr converts lower-case characters in a null-terminated wchar_t
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* string to their upper-case equivalents. The result may be longer or
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* shorter than the original string. Assumes enough space in string
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* to hold the result.
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*
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*Entry:
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* wchar_t *wsrc - wchar_t string to change to upper case
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*
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*Exit:
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* input string address
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*
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*Exceptions:
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* on an error, the original string is unaltered
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*
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*******************************************************************************/
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wchar_t * _CALLTYPE1 _wcsupr (
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wchar_t * wsrc
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)
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{
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#if defined(_INTL) && !defined(_NTSUBSET_)
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wchar_t *p; /* traverses string for C locale conversion */
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wchar_t *wdst = NULL; /* wide version of string in alternate case */
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int srclen; /* general purpose length of source string */
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int dstlen; /* len of wdst string, wide chars, no null */
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_mlock (_LC_CTYPE_LOCK);
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if (_lc_handle[LC_CTYPE] == _CLOCALEHANDLE) {
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_munlock (_LC_CTYPE_LOCK);
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for (p=wsrc; *p; p++)
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{
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if (*p >= (wchar_t)L'a' && *p <= (wchar_t)L'z')
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*p = *p - (L'a' - L'A');
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}
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return (wsrc);
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} /* C locale */
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/* Inquire size of wdst string */
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srclen = wcslen(wsrc) + 1;
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if ((dstlen=LCMapStringW(_lc_handle[LC_CTYPE], LCMAP_UPPERCASE, wsrc,
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srclen, wdst, 0)) == 0)
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goto error_cleanup;
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/* Allocate space for wdst */
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if ((wdst = (wchar_t *) malloc(dstlen*sizeof(wchar_t))) == NULL)
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goto error_cleanup;
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/* Map wrc string to wide-character wdst string in alternate case */
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if (LCMapStringW(_lc_handle[LC_CTYPE], LCMAP_UPPERCASE, wsrc,
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srclen, wdst, dstlen) == 0)
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goto error_cleanup;
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/* Copy wdst string to user string */
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wcscpy (wsrc, wdst);
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error_cleanup:
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_munlock (_LC_CTYPE_LOCK);
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free (wdst);
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#else
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wchar_t * p;
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for (p=wsrc; *p; ++p)
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{
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if (L'a' <= *p && *p <= L'z')
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*p += (wchar_t)(L'A' - L'a');
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}
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#endif /* _INTL */
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return (wsrc);
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}
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