rpmatch(3)                 Library Functions Manual                 rpmatch(3)

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       rpmatch - <?><?><?><?><?><?><?><?><?><?>, <?><?><?><?><?><?><?><?>
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       <?><?><?><?><?> C (libc, -lc)

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       #include <stdlib.h>

       int rpmatch(const char *response);

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   (<?><?>. feature_test_macros(7)):

       rpmatch():
           <?><?><?><?><?><?><?> <?> glibc 2.19:
               _DEFAULT_SOURCE
           glibc 2.19 <?> <?><?><?><?><?><?>:
               _SVID_SOURCE

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       <?> <?><?><?><?><?><?><?><?><?> response <?><?><?><?><?><?>
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       <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?><?> LANG,
       LC_MESSAGES <?> LC_ALL, <?><?><?><?> <?><?><?> <?><?> <?><?><?><?><?>
       <?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> setlocale(3).

       Regardless of the locale, responses matching ^[Yy] are always accepted
       as affirmative, and those matching ^[Nn] are always accepted as
       negative.

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       <?><?><?><?><?> <?><?><?><?><?><?><?><?> response,
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       rpmatch()  can fail for any of the reasons that regcomp(3)  or
       regexec(3)  can fail; the error is not available from errno or anywhere
       else, but indicates a failure of the regex engine (but this case is
       indistinguishable from that of an unrecognized value of response).

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       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> attributes(7).

       +----------------------------+----------------------------------------------------------+--------------------------+
       |<?><?><?><?><?><?><?><?><?> | <?><?><?><?><?><?><?>                                    | <?><?><?><?><?><?><?><?> |
       +----------------------------+----------------------------------------------------------+--------------------------+
       |rpmatch()                   | <?><?><?><?><?><?><?><?><?><?><?><?> <?> <?><?><?><?><?> | MT-Safe locale           |
       +----------------------------+----------------------------------------------------------+--------------------------+
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       GNU, FreeBSD, AIX.

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       The YESEXPR and NOEXPR of some locales (including "C") only inspect the
       first character of the response.  This can mean that "yno" et al.
       resolve to 1.  This is an unfortunate historical side-effect which
       should be fixed in time with proper localisation, and should not deter
       from rpmatch()  being the proper way to distinguish between binary
       answers.

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       #define _DEFAULT_SOURCE
       #include <locale.h>
       #include <stdio.h>
       #include <stdlib.h>
       #include <string.h>

       #define streq(...)  (strcmp(__VA_ARGS__) == 0)

       int
       main(int argc, char *argv[])
       {
           if (argc != 2 || streq(argv[1], "--help")) {
               fprintf(stderr, "%s response\n", argv[0]);
               exit(EXIT_FAILURE);
           }

           setlocale(LC_ALL, "");
           printf("rpmatch() returns: %d\n", rpmatch(argv[1]));
           exit(EXIT_SUCCESS);
       }

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       fgets(3), getline(3), nl_langinfo(3), regcomp(3), setlocale(3)

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       <?><?><?><?><?><?><?><?><?><?>(<?>) aereiae <aereiae@gmail.com>, Azamat
       Hackimov <azamat.hackimov@gmail.com>, Dmitriy S. Seregin
       <dseregin@59.ru>, Katrin Kutepova <blackkatelv@gmail.com>, Lockal
       <lockalsash@gmail.com>, Yuri Kozlov <yuray@komyakino.ru>,
       <?><?><?><?><?><?><?> <?><?><?><?><?><?><?><?> <?> <?><?><?><?>
       <?><?><?><?><?><?> <pavia00@gmail.com>

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       <?><?><?><?><?><?><?><?> GNU (GNU General Public License - GPL,
       <https://www.gnu.org/licenses/gpl-3.0.html> <?><?><?><?><?><?> 3
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       <debian-l10n-russian@lists.debian.org>.

Linux man-pages 6.18  22 <?><?><?><?><?><?><?> 2026 <?>.            rpmatch(3)