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

From: john.wismar_at_[hidden]
Date: 2003-05-29 10:35:51

> -----Original Message-----
> From: John Maddock [mailto:john_maddock_at_[hidden]] 
> Sent: Thursday, May 29, 2003 4:10 AM
> To: Boost-Users_at_[hidden]
> Subject: Re: [Boost-Users] Regex: matching either of 2 
> fields, in any order
> 
> > Is it possible to do this in a single 
> > operation, given that the order of the fields is arbitrary?
> 
> Yes do a conditional search and replace:
> 
> search for "C(\\d+)|O(\\w+)"
> 
> and replace with "(?1first-text)(?2second-text)"
> 
> don't forget to set the flag format_all when calling 
> regex_merge to do this
> (in future conditional replacements will only be enabled when actually
> requested).

Thanks for the reply!

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?

------------------------------
John Wismar 
BSA - AllData Offline Products
john.wismar_at_[hidden]