common/yesno.c

   1 /* yesno.c - Yes/No questions
   2  * Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <stdlib.h>
  22 #include <errno.h>
  23
  24 #include "i18n.h"
  25 #include "util.h"
  26
  27 int
  28 answer_is_yes_no_default( const char *s, int def_answer )
  29 {
  30   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  31   const char *long_yes = _("yes");
  32   const char *short_yes = _("yY");
  33   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  34   const char *long_no = _("no");
  35   const char *short_no = _("nN");
  36
  37   /* Note: we have to use the local dependent compare here. */
  38   if ( match_multistr(long_yes,s) )
  39     return 1;
  40   if ( *s && strchr( short_yes, *s ) && !s[1] )
  41     return 1;
  42   /* Test for "no" strings to catch ambiguities for the next test. */
  43   if ( match_multistr(long_no,s) )
  44     return 0;
  45   if ( *s && strchr( short_no, *s ) && !s[1] )
  46     return 0;
  47   /* Test for the english version (for those who are used to type yes). */
  48   if ( !ascii_strcasecmp(s, "yes" ) )
  49     return 1;
  50   if ( *s && strchr( "yY", *s ) && !s[1] )
  51     return 1;
  52   return def_answer;
  53 }
  54
  55 int
  56 answer_is_yes ( const char *s )
  57 {
  58   return answer_is_yes_no_default(s,0);
  59 }
  60
  61 /****************
  62  * Return 1 for yes, -1 for quit, or 0 for no
  63  */
  64 int
  65 answer_is_yes_no_quit ( const char *s )
  66 {
  67   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  68   const char *long_yes = _("yes");
  69   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  70   const char *long_no = _("no");
  71   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  72   const char *long_quit = _("quit");
  73   const char *short_yes = _("yY");
  74   const char *short_no = _("nN");
  75   const char *short_quit = _("qQ");
  76
  77   /* Note: we have to use a local dependent compare here. */
  78   if ( match_multistr(long_no,s) )
  79     return 0;
  80   if ( match_multistr(long_yes,s) )
  81     return 1;
  82   if ( match_multistr(long_quit,s) )
  83     return -1;
  84   if ( *s && strchr( short_no, *s ) && !s[1] )
  85     return 0;
  86   if ( *s && strchr( short_yes, *s ) && !s[1] )
  87       return 1;
  88   if ( *s && strchr( short_quit, *s ) && !s[1] )
  89     return -1;
  90   /* but not here. */
  91   if ( !ascii_strcasecmp(s, "yes" ) )
  92     return 1;
  93   if ( !ascii_strcasecmp(s, "quit" ) )
  94       return -1;
  95   if ( *s && strchr( "yY", *s ) && !s[1] )
  96     return 1;
  97   if ( *s && strchr( "qQ", *s ) && !s[1] )
  98     return -1;
  99   return 0;
 100 }
 101
 102 /*
 103    Return 1 for okay, 0 for for cancel or DEF_ANSWER for default.
 104  */
 105 int
 106 answer_is_okay_cancel (const char *s, int def_answer)
 107 {
 108   /* TRANSLATORS: See doc/TRANSLATE about this string. */
 109   const char *long_okay = _("okay|okay");
 110   /* TRANSLATORS: See doc/TRANSLATE about this string. */
 111   const char *long_cancel = _("cancel|cancel");
 112   const char *short_okay = _("oO");
 113   const char *short_cancel = _("cC");
 114
 115   /* Note: We have to use the locale dependent compare. */
 116   if ( match_multistr(long_okay,s) )
 117     return 1;
 118   if ( match_multistr(long_cancel,s) )
 119     return 0;
 120   if ( *s && strchr( short_okay, *s ) && !s[1] )
 121     return 1;
 122   if ( *s && strchr( short_cancel, *s ) && !s[1] )
 123     return 0;
 124   /* Always test for the English values (not locale here). */
 125   if ( !ascii_strcasecmp(s, "okay" ) )
 126     return 1;
 127   if ( !ascii_strcasecmp(s, "ok" ) )
 128     return 1;
 129   if ( !ascii_strcasecmp(s, "cancel" ) )
 130     return 0;
 131   if ( *s && strchr( "oO", *s ) && !s[1] )
 132     return 1;
 133   if ( *s && strchr( "cC", *s ) && !s[1] )
 134     return 0;
 135   return def_answer;
 136 }
 137