Hi Shawn,
On Wednesday 03 November 2010 09:27:14 shawn wilson wrote:
> i'm getting errors when trying to print these hash refs out and i just
> can't figure it out. here's the function:
>
> for my $word ( keys %data ) {
> while( my ($field, $type) = each %{ $data }{ $word } ) {
> print "$word,$field" if( $type eq 'field' );
> while( my ($line, $type) = each %{ $data }{ $word } ) {
> print ",$line" if( $type eq 'line' );
> }
> }
> }
>
1. each %{$data}{$word} is incorrect. You probably want:
each %{$data{$word}}.
And you may wish to do:
while (my ($word, $word_data) = each (%data)) {
while (my ($field, $type) = each(%$word_data)) {
2. You are trying to iterate over %{$data{$word}} in two nested loops. This
will confuse Perl to no end. What are you trying to do.
3. Some of what you're doing can be achieved using such functions as
http://perldoc.perl.org/functions/grep.html .
Regards,
Shlomi Fish
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