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You may only use this file in accordance with the terms of version
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Copyright (c) 2014 Joyent, Inc. All rights reserved.
Copyright 2014 Garrett D'Amore <garrett@damore.org>

towctrans, towctrans_l, wctrans, wctrans_l - define and perform transliteration mappings

#include <wctype.h>

wint_t towctrans(wint_t wc, wctrans_t desc);

wint_t towctrans_l(wint_t wc, wctrans_t desc, locale_t loc);

wctrans_t wctrans(const char * tranclass);

wctrans_t wctrans_l(const char * tranclass, locale_t loc);

The functions wctrans() and wctrans_l() are used to obtain a handle to a table that maps one set of wide characters to another. They return an object of type wctrans_t which can be used with the functions towctrans() and towctrans_l() . The valid set of classes that are available depends on the locale. The following names are valid in all locales:

"tolower" Conversion from upper case to lower case characters.

"toupper" Conversion from lower case to upper case characters.

The towctrans() and towctrans_l() functions convert the wide character wc based on the conversion table specified by desc .

The functions towctrans_l() and wctrans_l() are equivalent to the functions towctrans() and wctrans() , but instead of operating in the current locale, they operate on the locale specified by loc .

On successful completion, towctrans() and towctrans_l() functions return the character that corresponds to the argument passed through the mapping table described by desc . Otherwise, they return the character unchanged and set errno . On successful completion, wctrans() and wctrans_l() functions return a non-zero identifier for tranclass . On failure, they return zero and set errno .

The wctrans() and wctrans_l() functions will fail if:

EINVAL The mapping class specified by tranclass does not exist or is invalid.

The towctrans() and towctrans_l() functions will fail if:

EINVAL The mapping class specified by desc is invalid.

ATTRIBUTE TYPE ATTRIBUTE VALUE

Interface Stability Standard

MT-Level MT-Safe

newlocale (3C), setlocale (3C), towlower (3C), towupper (3C), environ (7), locale (7)