mirror of https://github.com/mkerrisk/man-pages
68 lines
2.0 KiB
Groff
68 lines
2.0 KiB
Groff
.\" Copyright (c) Bruno Haible <haible@clisp.cons.org>
|
|
.\"
|
|
.\" This is free documentation; you can redistribute it and/or
|
|
.\" modify it under the terms of the GNU General Public License as
|
|
.\" published by the Free Software Foundation; either version 2 of
|
|
.\" the License, or (at your option) any later version.
|
|
.\"
|
|
.\" References consulted:
|
|
.\" GNU glibc-2 source code and manual
|
|
.\" Dinkumware C library reference http://www.dinkumware.com/
|
|
.\" OpenGroup's Single Unix specification http://www.UNIX-systems.org/online.html
|
|
.\" ISO/IEC 9899:1999
|
|
.\"
|
|
.TH ISWGRAPH 3 1999-07-25 "GNU" "Linux Programmer's Manual"
|
|
.SH NAME
|
|
iswgraph \- test for graphic wide character
|
|
.SH SYNOPSIS
|
|
.nf
|
|
.B #include <wctype.h>
|
|
.sp
|
|
.BI "int iswgraph(wint_t " wc );
|
|
.fi
|
|
.SH DESCRIPTION
|
|
The
|
|
.BR iswgraph ()
|
|
function is the wide-character equivalent of the
|
|
.BR isgraph (3)
|
|
function.
|
|
It tests whether \fIwc\fP is a wide character
|
|
belonging to the wide-character class "graph".
|
|
.PP
|
|
The wide-character class "graph" is a subclass of the wide-character class
|
|
"print".
|
|
.PP
|
|
Being a subclass of the wide-character class "print",
|
|
the wide-character class
|
|
"graph" is disjoint from the wide-character class "cntrl".
|
|
.PP
|
|
The wide-character class "graph" is disjoint from the wide-character class
|
|
"space" and therefore also disjoint from its subclass "blank".
|
|
.\" Note: UNIX98 (susv2/xbd/locale.html) says that "graph" and "space" may
|
|
.\" have characters in common, except U+0020. But C99 (ISO/IEC 9899:1999
|
|
.\" section 7.25.2.1.10) says that "space" and "graph" are disjoint.
|
|
.PP
|
|
The wide-character class "graph" contains all the wide characters from the
|
|
wide-character class "print" except the space character.
|
|
It therefore contains
|
|
the wide-character classes "alnum" and "punct".
|
|
.SH "RETURN VALUE"
|
|
The
|
|
.BR iswgraph ()
|
|
function returns non-zero
|
|
if \fIwc\fP is a wide character
|
|
belonging to the wide-character class "graph".
|
|
Otherwise it returns zero.
|
|
.SH "CONFORMING TO"
|
|
C99.
|
|
.SH NOTES
|
|
The behavior of
|
|
.BR iswgraph ()
|
|
depends on the
|
|
.B LC_CTYPE
|
|
category of the
|
|
current locale.
|
|
.SH "SEE ALSO"
|
|
.BR isgraph (3),
|
|
.BR iswctype (3)
|