RE: [Boost-Users] Regex: matching either of 2 fields, in any orde r

From: Jim.Hyslop (jim.hyslop_at_[hidden])
Date: 2003-05-30 08:09:31

John Maddock wrote:
[unknown] wrote (please try to attribute quotes)
> > I can see how I could do this in a loop to replace the different
> > subfields.  Is there another step I would need to take to 
> > guarantee that
> > there is at most one of each type of subfield?
> 
> Well if you search for  "C(\\d+)|O(\\w+)" it can only match 
> one or the other
> can't it? Or am I missing something?
I could be wrong, but I interpreted the OP's question to mean: is it
possible to have the regex generate an error if more than one sub-field of a
specific type is found, i.e. the following would be invalid:

~C123~C345

The original poster can correct me if I've misinterpreted anything.

-- 
Jim