matching and extracting...

[shagshag13]

thanks to all !

that was the stuff that i needed !

("i8" must not be matched to "a8" and yes "i2 is a3" should have been "i2 is
a2")

> There are a couple of other potential shortcomings as well, but I
> decided that this satisfied the OP's exact request.  Handling things
> outside of that is Left As An Exercise(tm).

what kind of thing are you thinking about ?
(But Don't Give Correction(tm) just some guidelines)

s13.