my @matches = grep { $file[$_] =~ /^\Q$storeline|\E/ } 0..$#file;

##</code><code>##

@matches = grep { /^\Q$storeline|\E/ } @file;

##</code><code>##

no_match($storeline), return unless @matches;

##</code><code>##

duped_ids($storeline), return if @matches > 1;