On Thu, 26 Jan 2006 14:09:54 GMT, rumours say that "Roger L. Cauvin"
<[EMAIL PROTECTED]> might have written:
>Say I have some string that begins with an arbitrary sequence of characters
>and then alternates repeating the letters 'a' and 'b' any number of times,
>e.g.
>
>"xyz123aaabbaabbbbababbbbaaabb"
>
>I'm looking for a regular expression that matches the first, and only the
>first, sequence of the letter 'a', and only if the length of the sequence is
>exactly 3.
>
>Does such a regular expression exist? If so, any ideas as to what it could
>be?
Is this what you mean?
^[^a]*(a{3})(?:[^a].*)?$
This fits your description.
--
TZOTZIOY, I speak England very best.
"Dear Paul,
please stop spamming us."
The Corinthians
--
http://mail.python.org/mailman/listinfo/python-list
