mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 16:50:57 +00:00
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/*
|
|
FUNCTION
|
|
<<rpmatch>>---determine whether response to question is affirmative or negative
|
|
|
|
INDEX
|
|
rpmatch
|
|
|
|
SYNOPSIS
|
|
#include <stdlib.h>
|
|
int rpmatch(const char *<[response]>);
|
|
|
|
DESCRIPTION
|
|
The <<rpmatch>> function determines whether <[response]> is an affirmative
|
|
or negative response to a question according to the current locale.
|
|
|
|
RETURNS
|
|
<<rpmatch>> returns 1 if <[response]> is affirmative, 0 if negative, or -1
|
|
if not recognized as either.
|
|
|
|
PORTABILITY
|
|
<<rpmatch>> is a BSD extension also found in glibc.
|
|
|
|
NOTES
|
|
No supporting OS subroutines are required.
|
|
*/
|
|
|
|
/* This code is originally taken from FreeBSD. */
|
|
/*-
|
|
* Copyright (c) 2004-2005 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <langinfo.h>
|
|
#include <regex.h>
|
|
#include <stdlib.h>
|
|
|
|
int
|
|
rpmatch (const char *response)
|
|
{
|
|
regex_t yes, no;
|
|
int ret;
|
|
|
|
if (regcomp(&yes, nl_langinfo(YESEXPR), REG_EXTENDED|REG_NOSUB) != 0)
|
|
return (-1);
|
|
if (regcomp(&no, nl_langinfo(NOEXPR), REG_EXTENDED|REG_NOSUB) != 0) {
|
|
regfree(&yes);
|
|
return (-1);
|
|
}
|
|
if (regexec(&yes, response, 0, NULL, 0) == 0)
|
|
ret = 1;
|
|
else if (regexec(&no, response, 0, NULL, 0) == 0)
|
|
ret = 0;
|
|
else
|
|
ret = -1;
|
|
regfree(&yes);
|
|
regfree(&no);
|
|
return (ret);
|
|
}
|