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diff --git a/man3/iswgraph.3 b/man3/iswgraph.3 new file mode 100644 index 0000000..3af1b76 --- /dev/null +++ b/man3/iswgraph.3 @@ -0,0 +1,89 @@ +'\" t +.\" Copyright (c) Bruno Haible <haible@clisp.cons.org> +.\" +.\" SPDX-License-Identifier: GPL-2.0-or-later +.\" +.\" 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 2023-07-20 "Linux man-pages 6.05.01" +.SH NAME +iswgraph \- test for graphic wide character +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <wctype.h> +.PP +.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 +.I wc +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 nonzero +if +.I wc +is a wide character +belonging to the wide-character class "graph". +Otherwise, it returns zero. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.na +.nh +.BR iswgraph () +T} Thread safety MT-Safe locale +.TE +.sp 1 +.SH STANDARDS +C11, POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, 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) |