setlocal.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 90 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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#include "variety.h"
#include "widechar.h"
#include <stdio.h>
#include <string.h>
#include <locale.h>
#include "locales.h"
#include "localset.h"

#ifdef __WIDECHAR__
static wchar_t *ValidLocales[] = {
        L"C",           /* C_LOCALE */
        L"",            /* NATIVE_LOCALE */
        NULL            /* INVALID_LOCALE */
};
#else
static char *ValidLocales[] = {
        "C",            /* C_LOCALE */
        "",             /* NATIVE_LOCALE */
        NULL            /* INVALID_LOCALE */
};
#endif


_WCRTLINK CHAR_TYPE *__F_NAME(setlocale,_wsetlocale)( int category, CHAR_TYPE const *locale )
    {
        register int i;

        _INITLOCALESETTING
        if( category < LC_CTYPE  ||  category > LC_ALL ) {
            return( NULL );
        }
        if( locale == NULL ) {
            i = _LOCALESETTING[category];
        } else {
            i = C_LOCALE;
            if( *locale != __F_NAME('\0',L'\0') ) {
                for( ; ValidLocales[i]; ++i ) {
                    if( __F_NAME(strcmp,wcscmp)( locale, ValidLocales[i] ) == 0 )  break;
                }
            }
            if( i != INVALID_LOCALE ) {
                _LOCALESETTING[category] = i;
                if( category == LC_ALL ) {
                    _LOCALESETTING[LC_COLLATE]  = i;
                    _LOCALESETTING[LC_CTYPE]    = i;
                    _LOCALESETTING[LC_NUMERIC]  = i;
                    _LOCALESETTING[LC_TIME]     = i;
                    _LOCALESETTING[LC_MONETARY] = i;
#if defined( __UNIX__ )
                    _LOCALESETTING[LC_MESSAGES] = i;
#endif
                }
            }
        }
        return( ValidLocales[ i ] );
    }