http://qs321.pair.com?node_id=782071

GertMT has asked for the wisdom of the Perl Monks concerning the following question:

hi Monks,
Trying to make a little csv-parsing script more efficient. Everything works fine. I realize my current set-up is going to look really ugly if I add more "selection-rules" for a change in value of column 2. I chose current setup as I'm using regexes for the real data but I'm losing track of all the curly braces at the end of my script.

Is there a different way of setting the selections up? Via subs? Eg. if I'd like to add "boat" after "Sailing".
Thanks,
Gert
#!/usr/bin/perl -w use strict; use diagnostics; use Text::CSV_XS qw( ); my $qfn_in = 'data.txt'; open( my $fh_in, '<', $qfn_in ) or die("Can't open file \"$qfn_in\": $!\n"); my $fh_out = \*STDOUT; my $csv_in = Text::CSV_XS->new( { sep_char => ',', eol => $/ } ); my $csv_out = Text::CSV_XS->new( { eol => $/ } ); my $selection = "Apple"; my $code = " ####"; my $filter = "CX89"; while ( my $row = $csv_in->getline($fh_in) ) { if ( $row->[1] eq $selection ) { $code = "tree"; if ( $row->[0] eq $filter ) { $fh_out->print("$row->[0] $row->[1] $code \n"); } } }
data.txt
"CX89",Apple "CX89",Sailing "CX89",Apple "AC75",Apple "CX89",Sailing