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159 lines
4.0 KiB
Groff
159 lines
4.0 KiB
Groff
.\" $NetBSD: iswalnum.3,v 1.5 2002/07/10 14:46:10 yamt Exp $
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.\"
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.\" Copyright (c) 1991 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the American National Standards Committee X3, on Information
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.\" Processing Systems.
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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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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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.\" @(#)isalnum.3 5.2 (Berkeley) 6/29/91
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.\" $FreeBSD$
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.\"
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.Dd October 3, 2002
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.Dt ISWALNUM 3
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.Os
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.Sh NAME
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.Nm iswalnum ,
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.Nm iswalpha ,
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.Nm iswascii ,
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.Nm iswblank ,
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.Nm iswcntrl ,
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.Nm iswdigit ,
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.Nm iswgraph ,
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.Nm iswhexnumber ,
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.Nm iswideogram ,
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.Nm iswlower ,
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.Nm iswnumber ,
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.Nm iswphonogram ,
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.Nm iswprint ,
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.Nm iswpunct ,
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.Nm iswrune ,
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.Nm iswspace ,
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.Nm iswspecial ,
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.Nm iswupper ,
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.Nm iswxdigit
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.Nd wide character classification utilities
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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 int
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.Fn iswalnum "wint_t wc"
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.Ft int
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.Fn iswalpha "wint_t wc"
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.Ft int
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.Fn iswascii "wint_t wc"
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.Ft int
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.Fn iswblank "wint_t wc"
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.Ft int
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.Fn iswcntrl "wint_t wc"
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.Ft int
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.Fn iswdigit "wint_t wc"
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.Ft int
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.Fn iswgraph "wint_t wc"
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.Ft int
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.Fn iswhexnumber "wint_t wc"
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.Ft int
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.Fn iswideogram "wint_t wc"
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.Ft int
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.Fn iswlower "wint_t wc"
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.Ft int
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.Fn iswnumber "wint_t wc"
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.Ft int
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.Fn iswphonogram "wint_t wc"
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.Ft int
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.Fn iswprint "wint_t wc"
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.Ft int
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.Fn iswpunct "wint_t wc"
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.Ft int
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.Fn iswrune "wint_t wc"
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.Ft int
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.Fn iswspace "wint_t wc"
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.Ft int
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.Fn iswspecial "wint_t wc"
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.Ft int
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.Fn iswupper "wint_t wc"
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.Ft int
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.Fn iswxdigit "wint_t wc"
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.Sh DESCRIPTION
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The above functions are character classification utility functions,
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for use with wide characters
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.Vt ( wchar_t
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or
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.Vt wint_t ) .
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See the description for the similarly-named single byte classification
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functions (like
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.Xr isalnum 3 ) ,
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for details.
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.Sh RETURN VALUES
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The functions return zero if the character tests false and
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return non-zero if the character tests true.
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.Sh SEE ALSO
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.Xr isalnum 3 ,
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.Xr isalpha 3 ,
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.Xr isascii 3 ,
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.Xr isblank 3 ,
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.Xr iscntrl 3 ,
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.Xr isdigit 3 ,
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.Xr isgraph 3 ,
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.Xr ishexnumber 3 ,
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.Xr isideogram 3 ,
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.Xr islower 3 ,
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.Xr isnumber 3 ,
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.Xr isphonogram 3 ,
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.Xr isprint 3 ,
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.Xr ispunct 3 ,
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.Xr isrune 3 ,
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.Xr isspace 3 ,
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.Xr isspecial 3 ,
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.Xr isupper 3 ,
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.Xr isxdigit 3 ,
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.Xr wctype 3
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.Sh STANDARDS
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These functions conform to
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.St -p1003.1-2001 ,
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except
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.Fn iswascii ,
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.Fn iswhexnumber ,
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.Fn iswideogram ,
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.Fn iswnumber ,
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.Fn iswphonogram ,
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.Fn iswrune
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and
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.Fn iswspecial ,
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which are
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.Fx
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extensions.
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.Sh CAVEATS
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The result of these functions is undefined unless
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the argument is
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.Dv WEOF
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or a valid
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.Vt wchar_t
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value for the current locale.
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