How to Disassemble Varying Multiple Repeating Records from Single Row

Question

I have a flat file that has hundreds of thousands of rows.  Each row is a new record.
On each row there are about 23 elements that occur once per row and then there are two groups of 4-6 fields each group that repeat a certain number of times.  There is an integer field before each group that indicates how many times the group repeats
0 or greater.  An few examples rows are the following. 
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|0|0
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|1|b|b|b|b|0
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|2|b|b|b|b|c|c|c|c|0
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|2|b|b|b|b|c|c|c|c|1|d|d|d|d|d|d
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|2|b|b|b|b|c|c|c|c|2|d|d|d|d|d|d|e|e|e|e|e|e
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|0|1|b|b|b|b|b|b
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|0|2|b|b|b|b|b|b|c|c|c|c|c|c
I'd rather not do a custom pipeline if possible unless there is something already written.
thanks in advance.

Answer 1

Thank you for the quick response.  Would rather stick in biztalk if possible.
I was able to get something like this to process through no problem.
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|1|b|b|b|b
a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|a|0
Just using and unbounded record with the group order type set to sequence. each row could have 0 to hundreds
of groups.  And I've been able to process files with millions of rows.
I'm wondering if there is a way to check the integer number in order to tell the group how many records
there will be?
Sucks that it is all the same delimiter.