Guten tag monks

I have a simple little subroutine which given a question and an "approved" answer list will verify that the user gave a valid answer and if a default answer (from a config file for example) is provided will validate that as well, without questioning. Here is that little bit of code:

.
.
$runset{CHECK} = &AskQuestion("CHECK - Enter the check mode you want",
+ my @checkmode = qw/flat cell hier comp/, $conf{CHECK}); 
.
.
$runset{CNAMES} = &AskQuestion("CNAMES - Do you want the run Case Sens
+itive", my @CS = qw/yes no/, $conf{CNAMES}); 
.
.
# Subroutine - AskQuestion
# This will take a simple text for an answer and given a predetermined
# array of answers will only accept one of the choices
#
# Obviously this returns a valid answer
#

sub AskQuestion (*\@;$){
  my $prompt = shift; 
  my $conf = pop;
  my @answers = @_; 
  my $response; 
  while ( ! $response ) {
    if ( ! $conf ) {
      print "$prompt [$_[0]]: ";
      $response = <STDIN>;
      chomp $response;
      if ( $response eq "" ) {
        $response = $answers[0];
      } 
      if ( $response eq "?") {
        $response = "";
        print "  Valid answers are: \n"; 
        print "  @answers\n"; 
      }
    } else {
      $response = $conf; 
    }
    my $match;
    for ( my $i = 0; $i < @answers ; $i++ ){
      if ( $response eq $answers[$i] ){
        $match = "true";
        return $response;
      }
    }
    if ( ! $match ){ $response = ""; $conf = ""}
  } 
}
[download]

Now keep in mind I am asking about 50 questions and a fair number of these are "yes no" or "no yes" type questions. The difference being a "yes no" defaults to "yes". Anyway my users want to be able to simply type y or n for these type of questions. Can anyone come up with a way to modify the existing subroutine to allow a y or n answer when the question has a default answer of "yes no" or "no yes".
Thanks muchos

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Rhodium

The <it>seeker</it> of perl wisdom.

Comment on The default question subroutine YesNo Download Code