Manual pages for wide character classification (isw*) and case conversion

(tow*) functions from NetBSD, unmodified except for the addition of $FreeBSD$.

Obtained from:	NetBSD

2 files changed, 192 insertions, 0 deletions

diff --git a/lib/libc/locale/iswalnum.3 b/lib/libc/locale/iswalnum.3
new file mode 100644
index 0000000..11592f5
--- /dev/null
+++ b/lib/libc/locale/iswalnum.3
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+.\"	$NetBSD: iswalnum.3,v 1.5 2002/07/10 14:46:10 yamt Exp $
+.\"
+.\" Copyright (c) 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"     @(#)isalnum.3	5.2 (Berkeley) 6/29/91
+.\" $FreeBSD$
+.\"
+.Dd December 22, 2000
+.Dt ISWALNUM 3
+.Os
+.Sh NAME
+.Nm iswalnum ,
+.Nm iswalpha ,
+.Nm iswblank ,
+.Nm iswcntrl ,
+.Nm iswdigit ,
+.Nm iswgraph ,
+.Nm iswlower ,
+.Nm iswprint ,
+.Nm iswpunct ,
+.Nm iswspace ,
+.Nm iswupper ,
+.Nm iswxdigit
+.Nd wide character classification utilities
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.Fd #include \*[Lt]wctype.h\*[Gt]
+.Ft int
+.Fn iswalnum "wint_t wc"
+.Ft int
+.Fn iswalpha "wint_t wc"
+.Ft int
+.Fn iswblank "wint_t wc"
+.Ft int
+.Fn iswcntrl "wint_t wc"
+.Ft int
+.Fn iswdigit "wint_t wc"
+.Ft int
+.Fn iswgraph "wint_t wc"
+.Ft int
+.Fn iswlower "wint_t wc"
+.Ft int
+.Fn iswprint "wint_t wc"
+.Ft int
+.Fn iswpunct "wint_t wc"
+.Ft int
+.Fn iswspace "wint_t wc"
+.Ft int
+.Fn iswupper "wint_t wc"
+.Ft int
+.Fn iswxdigit "wint_t wc"
+.Sh DESCRIPTION
+The functions are character classification utility functions,
+for use with wide characters
+.Po
+.Fa wchar_t
+or
+.Fa wint_t
+.Pc .
+See description for singlebyte classification functions, like
+.Xr isalnum 3 ,
+for details.
+.Sh RETURN VALUES
+The functions return zero if the character tests false and
+return non-zero if the character tests true.
+.Sh SEE ALSO
+.Xr isalnum 3 ,
+.Xr isalpha 3 ,
+.Xr isblank 3 ,
+.Xr iscntrl 3 ,
+.Xr isdigit 3 ,
+.Xr isgraph 3 ,
+.Xr islower 3 ,
+.Xr isprint 3 ,
+.Xr ispunct 3 ,
+.Xr isspace 3 ,
+.Xr isupper 3 ,
+.Xr isxdigit 3
+.Sh STANDARDS
+The functions conform to
+.St -isoC99 .
+.Sh CAVEATS
+The argument to these functions must be WEOF or valid wchar_t
+value with current locale; otherwise, the result is undefined.
diff --git a/lib/libc/locale/towlower.3 b/lib/libc/locale/towlower.3
new file mode 100644
index 0000000..9538f19
--- /dev/null
+++ b/lib/libc/locale/towlower.3
@@ -0,0 +1,74 @@
+.\"	$NetBSD: towlower.3,v 1.3 2002/03/18 08:03:39 wiz Exp $
+.\"
+.\" Copyright (c) 1989, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the American National Standards Committee X3, on Information
+.\" Processing Systems.
+.\"
+.\" 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.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+.\"
+.\"	@(#)tolower.3	5.2 (Berkeley) 6/29/91
+.\" $FreeBSD$
+.\"
+.Dd December 22, 2000
+.Dt TOWLOWER 3
+.Os
+.Sh NAME
+.Nm towlower
+.Nd wide character case letter conversion utilities
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.Fd #include \*[Lt]wctype.h\*[Gt]
+.Ft wint_t
+.Fn towlower "wint_t wc"
+.Ft wint_t
+.Fn towlower "wint_t wc"
+.Sh DESCRIPTION
+The
+.Fn towlower
+function converts an upper-case wide character to the corresponding lower-case
+letter.
+The
+.Fn towupper
+function converts an lower-case wide character to the corresponding upper-case
+letter.
+.Sh RETURN VALUES
+If the argument is an upper/lower-case letter, the
+.Fn tolower
+function returns the corresponding counterpart if there is
+one; otherwise the argument is returned unchanged.
+.Sh SEE ALSO
+.Xr tolower 3 ,
+.Xr toupper 3
+.Sh STANDARDS
+The functions conform to
+.St -isoC99 .