1 /* rpmatch - determine whether string value is affirmation or negative
2 response according to current locale's data
3 Copyright (C) 1996 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #if STDC_HEADERS || _LIBC
31 # define _(Text) gettext (Text)
37 try (response, pattern, match, nomatch, lastp, re)
45 if (pattern != *lastp)
47 /* The pattern has changed. */
50 /* Free the old compiled pattern. */
54 /* Compile the pattern and cache it for future runs. */
55 if (regcomp (re, pattern, REG_EXTENDED) != 0)
60 /* See if the regular expression matches RESPONSE. */
61 return regexec (re, response, 0, NULL, 0) == 0 ? match : nomatch;
69 /* Match against one of the response patterns, compiling the pattern
70 first if necessary. */
72 /* We cache the response patterns and compiled regexps here. */
73 static const char *yesexpr, *noexpr;
74 static regex_t yesre, nore;
77 return ((result = try (response, _("^[yY][[:alpha:]]*"), 1, 0,
80 : try (response, _("^[nN][[:alpha:]]*"), 0, -1, &noexpr, &nore));