This worked for me:
[A-Z][A-Z][A-Z][a-z][A-Z][A-Z][A-Z]

If you need the exact same 3 letter sequence on each side, I believe
editplus' regex parser does not understand the back references like:

([A-Z][A-Z][A-Z])[a-z]\1

A cleaner expression would be:

([A-Z]{3})[a-z]\1

But editplus does not support the { } yet.

Hope this helps
______________________________________
Sergio Pereira



On Tue, Jan 6, 2009 at 1:19 PM, T Cosmas <t_cosmas@...> wrote:
> I need to search through some text to find a string which follows the
> pattern 3 capital letters + 1 lowercase letter + 3 capital letters.
> From the way the problem was stated, I am not sure if the repeating
> characters are all the same so that is why I tried the "+" versions.
> The statement is: "One small letter, surrounded by EXACTLY three big
> bodyguards on each of its sides."
>
> I've tried
>
> [A-Z^a-z][A-Z^a-z][A-Z^a-z][a-z][A-Z^a-z][A-Z^a-z][A-Z^a-z]
>
> [A-Z^a-z]+[a-z][A-Z^a-z]+
>
> [^a-z]+[a-z][^a-z]+
>
> But none of them seem to do the job.
>
> Thanks.
>
>
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