Peter Otten <__peter__ <at> web.de> writes:
>
> > How can I do this this concatenation correctly?
>
> I think sub() is more appropriate than finditer() for your problem, e. g.:
>
> >>> def process(match):
> ... return "_%s_" % match.group(1).title()
> ...
> >>> re.compile("(peter)", re.I).sub(process, "Peter Bengtsson PETER, or
> PeTeR")
> '_Peter_ Bengtsson _Peter_, or _Peter_'
> >>>
Ahaa! Great. I didn't realise that I can substitute with a callable that gets
the match object. Hadn't thought of it that way.
Will try this now.
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