I hope this is a simple fix. I want to check the beginning characters of items
in a hash, and compare that to a scalar variable. I do not need for the entire
value to match; just the first couple of characters. Here is a simple example
of what I want, but it does not work. Both "if" statements produce a match. I
have read several web pages, but I have not found one that has exactly what I
need. Thank you for any help on this.
Tim
my $prefix_search_list = '03S,04S';
my @prefix_array = split /\,/,$prefix_search_list;
my %prefix_hash = map {$_ => 1 } @prefix_array;
#compare 05S to 03S and 04S
my $input_field = "05S885858"; #should not match
if ( $input_field =~ /$prefix_hash/ ) { print "$input_field is found in
hash\n"; }
else { print "$input_field is not found\n"; }
#compare 03S to 03S and 04S
$input_field = "03S84844"; #should match
if ( $input_field =~ /$prefix_hash/ ) { print "$input_field is found in
hash\n"; }
else { print "$input_field is not found\n"; }
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