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Diffstat (limited to 'newlib/libc/ctype/towctrans.c')
-rw-r--r-- | newlib/libc/ctype/towctrans.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/newlib/libc/ctype/towctrans.c b/newlib/libc/ctype/towctrans.c new file mode 100644 index 000000000..cf2162670 --- /dev/null +++ b/newlib/libc/ctype/towctrans.c @@ -0,0 +1,97 @@ +/* Copyright (c) 2002 Red Hat Incorporated. + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + The name of Red Hat Incorporated may not be used to endorse + or promote products derived from this software without specific + prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/* +FUNCTION + <<towctrans>>---extensible wide-character case mapping + +INDEX + towctrans + +ANSI_SYNOPSIS + #include <wctype.h> + wint_t towctrans(wint_t <[c]>, wctrans_t <[w]>); + +TRAD_SYNOPSIS + #include <wctype.h> + wint_t towctrans(<[c]>, <[w]>) + wint_t <[c]>; + wctrans_t <[w]>; + + +DESCRIPTION +<<towctrans>> is a function which converts wide-characters based on +a specified translation type <[w]>. If the translation type is +invalid or cannot be applied to the current character, no change +to the character is made. + +RETURNS +<<towctrans>> returns the translated equivalent of <[c]> when it is a +valid for the given translation, otherwise, it returns the input character. +When the translation type is invalid, <<errno>> is set <<EINVAL>>. + +PORTABILITY +<<towctrans>> is C99. + +No supporting OS subroutines are required. +*/ + +#include <_ansi.h> +#include <string.h> +#include <reent.h> +#include <wctype.h> +#include <errno.h> +#include "local.h" + +wint_t +_DEFUN (_towctrans_r, (r, c, w), + struct _reent *r _AND + wint_t c _AND + wctrans_t w) +{ + if (w == WCT_TOLOWER) + return towlower (c); + else if (w == WCT_TOUPPER) + return towupper (c); + else + { + r->_errno = EINVAL; + return c; + } +} + +#ifndef _REENT_ONLY +wint_t +_DEFUN (towctrans, (c, w), + wint_t c _AND + wctrans_t w) +{ + return _towctrans_r (_REENT, c, w); +} +#endif /* !_REENT_ONLY */ |