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Hi,
I have a bit of Perl homework where we got a code sample. I can see what
the code sample is doing except for two little bits
There's a part that has $row->[$i] and a part that has @$row . What do
these two parts mean?
The code sample turns csv into fixed width so it reads each line of the
file into an array @rows. Then in a for loop
for $row (@rows) {
There's another for loop
for $row (@rows) {
~ for ($i = 0; $i < @$row; i++) {
~ $w = length $row->[$i]
~ ...
I'm assuming that the $row is itself another array or can be treated as
one and @$row can give you a number of the elements in it and $row->[$i]
is some sort of deferencing mechanism. The perlop page seemed a bit
cryptic to me as to what the arrow operator does exactly and I could
search for the use of @ in that context.
Any assistance would be appreciated.
Thanks
Christopher
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