2002-08-03 04:18:40 +00:00
|
|
|
.\" Copyright (c) 2002 Tim J. Robbins
|
|
|
|
.\" All rights reserved.
|
|
|
|
.\"
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
.\" are met:
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
.\" 2. 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.
|
|
|
|
.\"
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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.
|
|
|
|
.\"
|
|
|
|
.\" $FreeBSD$
|
|
|
|
.\"
|
2004-03-27 08:59:21 +00:00
|
|
|
.Dd March 27, 2004
|
2002-08-03 04:18:40 +00:00
|
|
|
.Dt WCTYPE 3
|
|
|
|
.Os
|
|
|
|
.Sh NAME
|
2002-11-29 17:35:09 +00:00
|
|
|
.Nm iswctype , wctype
|
2002-08-03 04:18:40 +00:00
|
|
|
.Nd "wide character class functions"
|
|
|
|
.Sh LIBRARY
|
|
|
|
.Lb libc
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
.In wctype.h
|
|
|
|
.Ft int
|
|
|
|
.Fn iswctype "wint_t wc" "wctype_t charclass"
|
|
|
|
.Ft wctype_t
|
|
|
|
.Fn wctype "const char *property"
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
The
|
|
|
|
.Fn wctype
|
|
|
|
function returns a value of type
|
|
|
|
.Vt wctype_t
|
|
|
|
which represents the requested wide character class and
|
|
|
|
may be used as the second argument for calls to
|
|
|
|
.Fn iswctype .
|
|
|
|
.Pp
|
|
|
|
The following character class names are recognised:
|
2004-03-27 08:59:21 +00:00
|
|
|
.Bl -column -offset indent ".Li alnum" ".Li cntrl" ".Li ideogram" ".Li print" ".Li space"
|
|
|
|
.It Li "alnum cntrl ideogram print space xdigit"
|
|
|
|
.It Li "alpha digit lower punct special"
|
|
|
|
.It Li "blank graph phonogram rune upper"
|
2002-08-03 04:18:40 +00:00
|
|
|
.El
|
|
|
|
.Pp
|
|
|
|
The
|
|
|
|
.Fn iswctype
|
|
|
|
function checks whether the wide character
|
|
|
|
.Fa wc
|
|
|
|
is in the character class
|
|
|
|
.Fa charclass .
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
The
|
|
|
|
.Fn iswctype
|
|
|
|
function returns non-zero if and only if
|
|
|
|
.Fa wc
|
|
|
|
has the property described by
|
|
|
|
.Fa charclass ,
|
|
|
|
or
|
|
|
|
.Fa charclass
|
|
|
|
is zero.
|
|
|
|
.Pp
|
|
|
|
The
|
|
|
|
.Fn wctype
|
|
|
|
function returns 0 if
|
|
|
|
.Fa property
|
|
|
|
is invalid, otherwise it returns a value of type
|
|
|
|
.Vt wctype_t
|
|
|
|
that can be used in subsequent calls to
|
|
|
|
.Fn iswctype .
|
2002-10-03 08:49:29 +00:00
|
|
|
.Sh EXAMPLES
|
|
|
|
Reimplement
|
2002-11-29 17:35:09 +00:00
|
|
|
.Xr iswalpha 3
|
2002-10-03 08:49:29 +00:00
|
|
|
in terms of
|
|
|
|
.Fn iswctype
|
|
|
|
and
|
|
|
|
.Fn wctype :
|
|
|
|
.Bd -literal -offset indent
|
|
|
|
int
|
|
|
|
myiswalpha(wint_t wc)
|
|
|
|
{
|
|
|
|
return (iswctype(wc, wctype("alpha")));
|
|
|
|
}
|
|
|
|
.Ed
|
2002-08-03 04:18:40 +00:00
|
|
|
.Sh SEE ALSO
|
2002-08-03 12:39:41 +00:00
|
|
|
.Xr ctype 3
|
2002-08-03 04:18:40 +00:00
|
|
|
.Sh STANDARDS
|
|
|
|
The
|
|
|
|
.Fn iswctype
|
|
|
|
and
|
|
|
|
.Fn wctype
|
|
|
|
functions conform to
|
|
|
|
.St -p1003.1-2001 .
|
|
|
|
The
|
2002-11-29 17:35:09 +00:00
|
|
|
.Dq Li ideogram ,
|
|
|
|
.Dq Li phonogram
|
2004-03-27 08:59:21 +00:00
|
|
|
.Dq Li special ,
|
2002-08-03 04:18:40 +00:00
|
|
|
and
|
2004-03-27 08:59:21 +00:00
|
|
|
.Dq Li rune
|
2002-08-03 04:18:40 +00:00
|
|
|
character classes are extensions.
|
|
|
|
.Sh HISTORY
|
|
|
|
The
|
|
|
|
.Fn iswctype
|
|
|
|
and
|
|
|
|
.Fn wctype
|
|
|
|
functions first appeared in
|
|
|
|
.Fx 5.0 .
|