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Re: Need help with arrays and CSVs

by ww (Archbishop)
on Dec 26, 2007 at 20:35 UTC ( [id://659113]=note: print w/replies, xml ) Need Help??


in reply to Need help with arrays and CSVs

OP's code, for ease of reading, with a note re the missing "my" and strict and warnings added: 
#!C:/perl/bin
use warnings;
use strict;

use Text::CSV; 
my @printerstat; 
$file = 'inputdata.csv';       #  should be <b>my</b> $file
my $csv = Text::CSV->new();
open (FILE, $file) or die "Couldn't open location file: $!"; 

while (<FILE>) { 
    $csv->parse($_); 
    push(@printerstat, $csv->fields); 
    print @printerstat; 
} 

close FILE;

[download]
when run against a csv:

this is a field to start with,field2,field3

this produces what I would expect, namely:

this is a field to start with.field2field3

On the supposition that "I want to print each line of the array" means you want each field in the csv printed on a separate line replace
print @printerstat;
with: 
for my $field(@printerstat) {
   print "$field\n";
}

[download]

Replies are listed 'Best First'.
Re^2: Need help with arrays and CSVs
by ww (Archbishop) on Dec 26, 2007 at 21:02 UTC
    ...and if your data is multiline, eg: 
    this is a field to start with,field2,field3
#,*,field3 of line 2
field1 of line3,and this is the second field of line3,field3 of line3

    [download]

    then replacing the relevant part of the above code with this fragment produces a line of output for each field:

    while (<FILE>) { 
    $csv->parse($_); 
    push(@printerstat, $csv->fields); 
    # print @printerstat;
}

    spit(@printerstat);

sub spit {

    for my $field(@printerstat) {
        print "$field\n";
    }
}

    [download]

    thusly

    this is a field to start with
field2
field3
#
*
field3 of line 2
field1 of line3
and this is the second field of line3
field3 of line3

    [download]

    This also works if some of your fields are void, eg:

    ,,this is a row with two empty fields
[reply]
[d/l]
[select]

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