From 17ebe40096aa2c39d2396d737f9c69bccb134822 Mon Sep 17 00:00:00 2001 From: "Tim J. Robbins" Date: Sun, 9 Jan 2005 03:55:13 +0000 Subject: [PATCH] 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. --- include/stdlib.h | 1 + lib/libc/locale/Makefile.inc | 5 +-- lib/libc/locale/rpmatch.3 | 63 ++++++++++++++++++++++++++++++++++++ lib/libc/locale/rpmatch.c | 55 +++++++++++++++++++++++++++++++ 4 files changed, 122 insertions(+), 2 deletions(-) create mode 100644 lib/libc/locale/rpmatch.3 create mode 100644 lib/libc/locale/rpmatch.c diff --git a/include/stdlib.h b/include/stdlib.h index f94e7ab82c58..0ae6b181351e 100644 --- a/include/stdlib.h +++ b/include/stdlib.h @@ -263,6 +263,7 @@ void qsort_r(void *, size_t, size_t, void *, int radixsort(const unsigned char **, int, const unsigned char *, unsigned); void *reallocf(void *, size_t); +int rpmatch(const char *); void setprogname(const char *); int sradixsort(const unsigned char **, int, const unsigned char *, unsigned); diff --git a/lib/libc/locale/Makefile.inc b/lib/libc/locale/Makefile.inc index 62ecd327541d..af9b0cacd766 100644 --- a/lib/libc/locale/Makefile.inc +++ b/lib/libc/locale/Makefile.inc @@ -10,7 +10,8 @@ SRCS+= big5.c btowc.c collate.c collcmp.c euc.c fix_grouping.c \ mbrlen.c \ mbrtowc.c mbsinit.c mbsnrtowcs.c \ mbsrtowcs.c mbtowc.c mbstowcs.c \ - mskanji.c nextwctype.c nl_langinfo.c nomacros.c none.c rune.c \ + mskanji.c nextwctype.c nl_langinfo.c nomacros.c none.c rpmatch.c \ + rune.c \ runetype.c setlocale.c setrunelocale.c \ table.c \ tolower.c toupper.c utf8.c wcrtomb.c wcsnrtombs.c \ @@ -29,7 +30,7 @@ MAN+= btowc.3 \ mbrtowc.3 \ mbsinit.3 \ mbsrtowcs.3 mbstowcs.3 mbtowc.3 multibyte.3 \ - nextwctype.3 nl_langinfo.3 \ + nextwctype.3 nl_langinfo.3 rpmatch.3 \ setlocale.3 toascii.3 tolower.3 toupper.3 towlower.3 towupper.3 \ wcsftime.3 \ wcrtomb.3 \ diff --git a/lib/libc/locale/rpmatch.3 b/lib/libc/locale/rpmatch.3 new file mode 100644 index 000000000000..35e4ef1ee07d --- /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 diff --git a/lib/libc/locale/rpmatch.c b/lib/libc/locale/rpmatch.c new file mode 100644 index 000000000000..4d90eb8dcf8b --- /dev/null +++ b/lib/libc/locale/rpmatch.c @@ -0,0 +1,55 @@ +/*- + * 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 +__FBSDID("$FreeBSD$"); + +#include +#include +#include + +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); +}