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| author | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:38 +0200 |
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| committer | Alejandro Colomar <alx.manpages@gmail.com> | 2022-09-05 23:03:47 +0200 |
| commit | 70ac1c4785fc1e158ab2349a962dba2526bf4fbc (patch) | |
| tree | bff270e2496dd284bccfc1271b43946f5d225224 /man/man3/iswlower.3 | |
| parent | 5423a6f86b2b920a5f3e8cf8d759b513050f2d33 (diff) | |
| download | man-pages-70ac1c4785fc1e158ab2349a962dba2526bf4fbc.tar.gz | |
src.mk, All pages: Move man* to man/
The root of the repository is becoming a bit overpopulated and
unorganized, due to the recent addition of more mandirs, and more
informative and configuration files too. Let's create a specific
mandir <man/> that contains the mandirs <man[1-8]*>.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Diffstat (limited to 'man/man3/iswlower.3')
| -rw-r--r-- | man/man3/iswlower.3 | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/man/man3/iswlower.3 b/man/man3/iswlower.3 new file mode 100644 index 0000000000..2b8cb81a92 --- /dev/null +++ b/man/man3/iswlower.3 @@ -0,0 +1,106 @@ +.\" 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 ISWLOWER 3 2021-03-22 "Linux man-pages (unreleased)" +.SH NAME +iswlower \- test for lowercase wide character +.SH LIBRARY +Standard C library +.RI ( libc ", " \-lc ) +.SH SYNOPSIS +.nf +.B #include <wctype.h> +.PP +.BI "int iswlower(wint_t " wc ); +.fi +.SH DESCRIPTION +The +.BR iswlower () +function is the wide-character equivalent of the +.BR islower (3) +function. +It tests whether +.I wc +is a wide character +belonging to the wide-character class "lower". +.PP +The wide-character class "lower" is a subclass of the wide-character class +"alpha", and therefore also a subclass +of the wide-character class "alnum", of +the wide-character class "graph" and of the wide-character class "print". +.PP +Being a subclass of the wide-character class "print", +the wide-character class +"lower" is disjoint from the wide-character class "cntrl". +.PP +Being a subclass of the wide-character class "graph", +the wide-character class "lower" is disjoint from the +wide-character class "space" and its subclass "blank". +.PP +Being a subclass of the wide-character class "alnum", +the wide-character class +"lower" is disjoint from the wide-character class "punct". +.PP +Being a subclass of the wide-character class "alpha", +the wide-character class +"lower" is disjoint from the wide-character class "digit". +.PP +The wide-character class "lower" contains at least +those characters +.I wc +which are equal to +.I towlower(wc) +and different from +.IR towupper(wc) . +.PP +The wide-character class "lower" always contains +at least the letters \(aqa\(aq to \(aqz\(aq. +.SH RETURN VALUE +The +.BR iswlower () +function returns nonzero +if +.I wc +is a wide character +belonging to the wide-character class "lower". +Otherwise, it returns zero. +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.ad l +.nh +.TS +allbox; +lbx lb lb +l l l. +Interface Attribute Value +T{ +.BR iswlower () +T} Thread safety MT-Safe locale +.TE +.hy +.ad +.sp 1 +.SH STANDARDS +POSIX.1-2001, POSIX.1-2008, C99. +.SH NOTES +The behavior of +.BR iswlower () +depends on the +.B LC_CTYPE +category of the +current locale. +.PP +This function is not very appropriate for dealing with Unicode characters, +because Unicode knows about three cases: upper, lower, and title case. +.SH SEE ALSO +.BR islower (3), +.BR iswctype (3), +.BR towlower (3) |