afoken is correct about using a Module to parse csv data, and your particular data supports that choice, because of the embedded commas within quoted fields. Here's an example using Text::CSV on your data, including a header row--in case you need to handle that (omit, otherwise):

use strict;
use warnings;
use Text::CSV;

my $csvData = <<END;
col0,col1,col2,col3,col4,col5,col6,col7
,"value",,"value1,value2","anothervalue","oh,comeon",,"Givemeabreak"
END

my $csv = Text::CSV_XS->new( { binary => 1, auto_diag => 2 } )
  or die "Cannot use CSV: " . Text::CSV->error_diag();

# Open the string like a file for reading
open my $csvfh, '<', \$csvData or die $!;

# Get first line (array reference to parsed column names)
my $columnNames = $csv->getline($csvfh);

# $row contains an array reference to the parsed csv line
while ( my $row = $csv->getline($csvfh) ) {
    print "Col$_: $row->[$_]\n" for 0 .. 7;
}

close $csvfh;
[download]

Output:

Col0: 
Col1: value
Col2: 
Col3: value1,value2
Col4: anothervalue
Col5: oh,comeon
Col6: 
Col7: Givemeabreak
[download]

An array reference to the parsed csv line's data is returned to $row which is later dereferenced using the arrow operator; e.g., $row->[0] contains the value of column zero.

Hope this helps!

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.