Apart from Ikegami's suggestion, you might also reduce your string to its first 8 or 11 characters (*) and then apply your pattern-matching on the reduced string. Use substr for reducing the string.

* depending whether the TTT needs to be contained in the 8 characters or not

In reply to Re: how to search for a pattern in a string within a certain range by Ratazong
in thread how to search for a pattern in a string within a certain range by BhariD

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