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Add the ISO C90 Amd. 1 wctrans(3) and towctrans(3) functions.
This commit is contained in:
Tim J. Robbins
parent
92ece88d16
commit
4645079944
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=101313
@ -41,6 +41,11 @@ typedef _BSD_WINT_T_ wint_t;
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#undef _BSD_WINT_T_
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#endif
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#ifndef _WCTRANS_T
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typedef int wctrans_t;
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#define _WCTRANS_T
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#endif
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#ifndef _WCTYPE_T
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typedef long wctype_t;
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#define _WCTYPE_T
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@ -52,6 +57,8 @@ typedef long wctype_t;
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__BEGIN_DECLS
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int iswctype(wint_t, wctype_t);
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wint_t towctrans(wint_t, wctrans_t);
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wctrans_t wctrans(const char *);
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wctype_t wctype(const char *);
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#if 0
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/* XXX: not implemented */
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@ -9,14 +9,14 @@ SRCS+= ansi.c big5.c btowc.c collate.c collcmp.c euc.c fix_grouping.c frune.c \
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ldpart.c lmessages.c lmonetary.c lnumeric.c localeconv.c mbrune.c \
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mskanji.c nl_langinfo.c nomacros.c none.c rune.c \
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runetype.c setinvalidrune.c setlocale.c setrunelocale.c table.c \
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tolower.c toupper.c utf2.c wctob.c wctype.c
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tolower.c toupper.c utf2.c wctob.c wctrans.c wctype.c
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.if ${LIB} == "c"
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MAN+= btowc.3 \
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ctype.3 digittoint.3 isalnum.3 isalpha.3 isascii.3 isblank.3 iscntrl.3 \
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isdigit.3 isgraph.3 islower.3 isprint.3 ispunct.3 isspace.3 \
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isupper.3 isxdigit.3 mbrune.3 multibyte.3 nl_langinfo.3 rune.3 \
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setlocale.3 toascii.3 tolower.3 toupper.3 wctype.3
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setlocale.3 toascii.3 tolower.3 toupper.3 wctrans.3 wctype.3
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MAN+= euc.4 utf2.4
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MLINKS+=btowc.3 wctob.3
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@ -29,5 +29,6 @@ MLINKS+=rune.3 fgetrune.3 rune.3 fputrune.3 rune.3 fungetrune.3 \
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rune.3 setinvalidrune.3 rune.3 setrunelocale.3 rune.3 sgetrune.3 \
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rune.3 sputrune.3
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MLINKS+=setlocale.3 localeconv.3
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MLINKS+=wctrans.3 towctrans.3
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MLINKS+=wctype.3 iswctype.3
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.endif
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109
lib/libc/locale/wctrans.3
Normal file
109
lib/libc/locale/wctrans.3
Normal file
@ -0,0 +1,109 @@
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.\" Copyright (c) 2002 Tim J. Robbins
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd August 4, 2002
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.Dt WCTRANS 3
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.Os
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.Sh NAME
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.Nm towctrans ,
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.Nm wctrans
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.Nd "wide character mapping functions"
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In wctype.h
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.Ft wint_t
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.Fn towctrans "wint_t wc" "wctrans_t desc"
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.Ft wctrans_t
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.Fn wctrans "const char *charclass"
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.Sh DESCRIPTION
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The
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.Fn wctrans
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function returns a value of type
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.Vt wctrans_t
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which represents the requested wide character mapping operation and
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may be used as the second argument for calls to
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.Fn towctrans .
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.Pp
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The following character mapping names are recognised:
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.Bl -column -offset indent ".Li tolower" ".Li toupper"
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.It Li tolower Ta Li toupper
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.El
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.Pp
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The
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.Fn towctrans
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function transliterates the wide character
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.Fa wc
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according to the mapping described by
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.Fa desc .
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.Sh RETURN VALUES
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The
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.Fn towctrans
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function returns the transliterated character if successful, otherwise
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it returns the character unchanged and sets
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.Va errno .
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.Pp
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The
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.Fn wctrans
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function returns non-zero if successful, otherwise it returns zero
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and sets
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.Va errno .
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.Sh ERRORS
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The
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.Fn towctrans
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function will fail if:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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The supplied
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.Fa desc
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argument is invalid.
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.El
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.Pp
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The
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.Fn wctrans
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function will fail if:
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.Bl -tag -width Er
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.It Bq Er EINVAL
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The requested mapping name is invalid.
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.El
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.Sh SEE ALSO
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.Xr tolower 3 ,
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.Xr toupper 3 ,
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.Xr wctype 3
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.Sh STANDARDS
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The
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.Fn towctrans
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and
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.Fn wctrans
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functions conform to
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.St -p1003.1-2001 .
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.Sh HISTORY
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The
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.Fn towctrans
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and
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.Fn wctrans
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functions first appeared in
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.Fx 5.0 .
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84
lib/libc/locale/wctrans.c
Normal file
84
lib/libc/locale/wctrans.c
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@ -0,0 +1,84 @@
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/*-
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* Copyright (c) 2002 Tim J. Robbins.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <ctype.h>
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#include <errno.h>
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#include <string.h>
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#include <wctype.h>
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enum {
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_WCT_ERROR = 0,
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_WCT_TOLOWER = 1,
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_WCT_TOUPPER = 2
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};
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/*
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* TODO: Supply a macro version of this.
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*/
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wint_t
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towctrans(wint_t wc, wctrans_t desc)
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{
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switch (desc) {
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case _WCT_TOLOWER:
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wc = tolower(wc);
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break;
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case _WCT_TOUPPER:
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wc = toupper(wc);
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break;
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case _WCT_ERROR:
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default:
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errno = EINVAL;
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break;
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}
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return (wc);
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}
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wctrans_t
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wctrans(const char *charclass)
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{
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struct {
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const char *name;
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wctrans_t trans;
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} ccls[] = {
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{ "tolower", _WCT_TOLOWER },
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{ "toupper", _WCT_TOUPPER },
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{ NULL, _WCT_ERROR }, /* Default */
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};
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int i;
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i = 0;
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while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
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i++;
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if (ccls[i].trans == _WCT_ERROR)
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errno = EINVAL;
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return (ccls[i].trans);
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}
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