Your code relies on a number of implicit assumptions:...

 Assumptions that are savely ok considering the OP dataset.
And that was why I said ..using your dataset.. i.e that of the OP in my previous reply, which I don't suppose have anything which follows "THE" assumptions, you stated. Except the OP has said otherwise to you privately.

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

In reply to Re^3: sorting headers in a file by 2teez
in thread sorting headers in a file by utpalmtbi

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