@fields = ();
while ($text =~ m/"([^"\\]*(\\.[^"\\]*)*)",?|([^,]+),?|,/g {
push (@fields, defined ($1) ? $1 : $3) ;
}
push (@fields, undef) if $text =~ m/,$/; # Account for the special case of an empty last field.

# all data is now in @fields