Could you be more specific what you want the output to look like? Also, how would the code know when to break apart the input - is it just each "X1" marker that the code encounters, or is it something else like "BEGIN_TAG"? To put that a different way, what should the output for this input look like? (How do I post a question effectively?)

BEGIN_TAG
X1 a b
c d
X1 e f
g h
BEGIN_TAG
X1 i j
k l
X1 m n
o p

[download]

As for the data structure, as one possibility I'd suggest you have a look at "Hashes of Arrays" in perldsc.

Update: For CSV input and output, I'd very strongly recommend Text::CSV.

In reply to Re: Returning an array in a specific way for csv by haukex
in thread Returning an array in a specific way for csv by Arengin

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