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/* Get descriptor for a 32-bit wide character case conversion.
Copyright (C) 2011-2025 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2023. */
#include <config.h>
#define IN_C32_GET_MAPPING
/* Specification. */
#include <uchar.h>
#include <string.h>
#include <wctype.h>
#if _GL_WCHAR_T_IS_UCS4
_GL_EXTERN_INLINE
#endif
c32_mapping_t
c32_get_mapping (const char *name)
{
#if _GL_WCHAR_T_IS_UCS4
return wctrans (name);
#else
if (name[0] == 't'
&& name[1] == 'o')
switch (name[2])
{
case 'l':
if (strcmp (name + 3, "ower") == 0)
return c32tolower;
break;
case 'u':
if (strcmp (name + 3, "pper") == 0)
return c32toupper;
break;
default:
break;
}
return (c32_mapping_t) 0;
#endif
}
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