ktsirig

Hi all!

I have a string :

$seq="IIIIIMMMMMMMMMMMOOOOOOOOOOOOOOOOMMMMMMMMMMMMMIIIIIMMMMMMMMMOOOOOOOOOOOOOOMMMMMMMMMMMMMIIIMMMMMMMMMMMOOOOOOOOOOOOOOOMMMMMMMMMMMIIIIIIMMMMMMMMMMMMMOOOOOOOOOOOOOOOOOOOOOOOMMMMMMMIIIMMMMMMMMMOOOOOOOOOOOOOOOOOOOOOOOOOOOMMMMMMMIIIIMMMMMMMMMMMOOOOOOOOOOOOOOOOOOOOOMMMMMMMIIIMMMMMMMMMOOOOOOOOOOOOOOOOOOOOOOOOOMMMMMMMMMIIIMMMMMMMMMMMOOOOOOOOOOOOOOOOOMMMMMMMMI";

and I want to find all groups of MMMMMM. I don't want to find only every position in the string that has 'M',
i.e. pos6, pos7, pos8, pos9 etc but I want to have something like:

1st group : pos 7-15
2nd group : pos 23-34
3rd group : pos 45-55

etc

DaWei

You don't mention what you already know about regex. A good response would be contingent upon that. Are you aware that you can specify how many of some particular match must occur in sequence? Are you experienced in specifying and retrieving groups? In other words, do you need a hint or do you need a class on regular expressions?

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Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Infinite Recursion

Have you checked out this site yet? http://www.regular-expressions.info/

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