Implement rpmatch(), a semi-standard interface (as found on AIX, Tru64,

GNU) for determining whether a string is an affirmative or negative
response to a question according to the current locale. This is done
by matching the response against nl_langinfo(3) items YESEXPR and NOEXPR.

1 files changed, 63 insertions, 0 deletions

diff --git a/lib/libc/locale/rpmatch.3 b/lib/libc/locale/rpmatch.3
new file mode 100644
index 0000000..35e4ef1
--- /dev/null
+++ b/lib/libc/locale/rpmatch.3
@@ -0,0 +1,63 @@
+.\"
+.\" Copyright (c) 2005 Tim J. Robbins
+.\" All rights reserved.
+.\"
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd January 6, 2005
+.Dt RPMATCH 3
+.Os
+.Sh NAME
+.Nm rpmatch
+.Nd "determine whether the response to a question is affirmative or negative"
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In stdlib.h
+.Ft int
+.Fo rpmatch
+.Fa "const char *response"
+.Fc
+.Sh DESCRIPTION
+The
+.Fn rpmatch
+function determines whether the
+.Fa response
+argument is an affirmative or negative response to a question
+according to the current locale.
+.Sh RETURN VALUES
+The
+.Fn rpmatch
+functions returns:
+.Bl -tag -width indent
+.It 1
+The response is affirmative.
+.It 0
+The response is negative.
+.It \&-1
+The response is not recognized.
+.El
+.Sh SEE ALSO
+.Xr nl_langinfo 3 ,
+.Xr setlocale 3