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 2 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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21
  22 #include <config.h>
  23 #include <stdlib.h>
  24 #include <errno.h>
  25
  26 #include "i18n.h"
  27 #include "util.h"
  28
  29 int
  30 answer_is_yes_no_default( const char *s, int def_answer )
  31 {
  32   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  33   const char *long_yes = _("yes");
  34   const char *short_yes = _("yY");
  35   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  36   const char *long_no = _("no");
  37   const char *short_no = _("nN");
  38
  39   /* Note: we have to use the local dependent compare here. */
  40   if ( match_multistr(long_yes,s) )
  41     return 1;
  42   if ( *s && strchr( short_yes, *s ) && !s[1] )
  43     return 1;
  44   /* Test for "no" strings to catch ambiguities for the next test. */
  45   if ( match_multistr(long_no,s) )
  46     return 0;
  47   if ( *s && strchr( short_no, *s ) && !s[1] )
  48     return 0;
  49   /* Test for the english version (for those who are used to type yes). */
  50   if ( !ascii_strcasecmp(s, "yes" ) )
  51     return 1;
  52   if ( *s && strchr( "yY", *s ) && !s[1] )
  53     return 1;
  54   return def_answer;
  55 }
  56
  57 int
  58 answer_is_yes ( const char *s )
  59 {
  60   return answer_is_yes_no_default(s,0);
  61 }
  62
  63 /****************
  64  * Return 1 for yes, -1 for quit, or 0 for no
  65  */
  66 int
  67 answer_is_yes_no_quit ( const char *s )
  68 {
  69   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  70   const char *long_yes = _("yes");
  71   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  72   const char *long_no = _("no");
  73   /* TRANSLATORS: See doc/TRANSLATE about this string. */
  74   const char *long_quit = _("quit");
  75   const char *short_yes = _("yY");
  76   const char *short_no = _("nN");
  77   const char *short_quit = _("qQ");
  78
  79   /* Note: we have to use a local dependent compare here. */
  80   if ( match_multistr(long_no,s) )
  81     return 0;
  82   if ( match_multistr(long_yes,s) )
  83     return 1;
  84   if ( match_multistr(long_quit,s) )
  85     return -1;
  86   if ( *s && strchr( short_no, *s ) && !s[1] )
  87     return 0;
  88   if ( *s && strchr( short_yes, *s ) && !s[1] )
  89       return 1;
  90   if ( *s && strchr( short_quit, *s ) && !s[1] )
  91     return -1;
  92   /* but not here. */
  93   if ( !ascii_strcasecmp(s, "yes" ) )
  94     return 1;
  95   if ( !ascii_strcasecmp(s, "quit" ) )
  96       return -1;
  97   if ( *s && strchr( "yY", *s ) && !s[1] )
  98     return 1;
  99   if ( *s && strchr( "qQ", *s ) && !s[1] )
 100     return -1;
 101   return 0;
 102 }
 103
 104 /*
 105    Return 1 for okay, 0 for for cancel or DEF_ANSWER for default.
 106  */
 107 int
 108 answer_is_okay_cancel (const char *s, int def_answer)
 109 {
 110   /* TRANSLATORS: See doc/TRANSLATE about this string. */
 111   const char *long_okay = _("okay|okay");
 112   /* TRANSLATORS: See doc/TRANSLATE about this string. */
 113   const char *long_cancel = _("cancel|cancel");
 114   const char *short_okay = _("oO");
 115   const char *short_cancel = _("cC");
 116
 117   /* Note: We have to use the locale dependent compare. */
 118   if ( match_multistr(long_okay,s) )
 119     return 1;
 120   if ( match_multistr(long_cancel,s) )
 121     return 0;
 122   if ( *s && strchr( short_okay, *s ) && !s[1] )
 123     return 1;
 124   if ( *s && strchr( short_cancel, *s ) && !s[1] )
 125     return 0;
 126   /* Always test for the English values (not locale here). */
 127   if ( !ascii_strcasecmp(s, "okay" ) )
 128     return 1;
 129   if ( !ascii_strcasecmp(s, "ok" ) )
 130     return 1;
 131   if ( !ascii_strcasecmp(s, "cancel" ) )
 132     return 0;
 133   if ( *s && strchr( "oO", *s ) && !s[1] )
 134     return 1;
 135   if ( *s && strchr( "cC", *s ) && !s[1] )
 136     return 0;
 137   return def_answer;
 138 }
 139