You're confusing the filehandle with the record being read.
Using more code than is really necessary to demonstrate the point:
open my $filehandle, ...
while (my $record = <$filehandle>) {
chomp $record; # Remove the newline
# Do stuff with the record text, e.g.
my @fields = split /$field_separator/ => $record;
...
}
That would normally be coded more succinctly as:
open my $filehandle, ...
while (<$filehandle>) {
chomp; # Remove the newline
# Do stuff with the record text, e.g.
my @fields = split /$field_separator/;
...
}
In the second code fragment, all instances of $record (from the first fragment) are now $_, which (being the default for chomp, split, and many other functions) can be omitted.
And, just in case it wasn't obvious, that was for general enlightenment, not a recommendation to attempt your own version of Text::CSV. :-)
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