kc3-lang/gnulib/lib/yesno.c

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• Hash : 173f47e7
  Author :
  Date : 2006-12-14T18:47:36
  

  * lib/yesno.c [!ENABLE_NLS]: Don't include getline.h.
  (yesno) [!ENABLE_NLS]: Don't invoke getline or rpmatch.
  This is for the benefit of gzip, which doesn't do i18n.
  

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• lib/yesno.c

• /* yesno.c -- read a yes/no response from stdin
  
     Copyright (C) 1990, 1998, 2001, 2003, 2004, 2005, 2006 Free
     Software Foundation, Inc.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2, or (at your option)
     any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software Foundation,
     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  #include <config.h>
  
  #include "yesno.h"
  
  #include <stdlib.h>
  #include <stdio.h>
  
  #if ENABLE_NLS
  # include "getline.h"
  #endif
  
  /* Return true if we read an affirmative line from standard input.  */
  
  extern int rpmatch (char const *response);
  
  bool
  yesno (void)
  {
    bool yes;
  
  #if ENABLE_NLS
    char *response = NULL;
    size_t response_size = 0;
    ssize_t response_len = getline (&response, &response_size, stdin);
  
    if (response_len <= 0)
      yes = false;
    else
      {
        response[response_len - 1] = '\0';
        yes = (0 < rpmatch (response));
      }
  
    free (response);
  #else
    /* Test against "^[yY]", hardcoded to avoid requiring getline,
       regex, and rpmatch.  */
    int c = getchar ();
    yes = (c == 'y' || c == 'Y');
    while (c != '\n' && c != EOF)
      c = getchar ();
  #endif
  
    return yes;
  }
  

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