Im trying to match either the word "yes" or the word "no" in its exact form... so far, no luck...

How in the world do I go about doing this? The current regex I have is allowing things like "yessir" and "nope" when I want to force it to only be either yes or no...

Here is the snippet: 
 while ( ($addques{$key}{answer} eq "") || ($addques{$key}{answer} !~ 
+/$addques{$key}{format}/) )
 {
  print " Invalid answer/option - try again\n";
  print "$addques{$key}{question}";
  chomp($addques{$key}{answer} = <STDIN>);
 }

[download]
Where the format is nothing more than "yes|no"

Thanks for any help that can be provided - yall rock =)

In reply to Exact pattern match? by oakley

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