Re: [Boost-users] [xpressive] Overlapping match results?

Subject: Re: [Boost-users] [xpressive] Overlapping match results?
From: Eric Niebler (eric_at_[hidden])
Date: 2008-12-16 00:52:14

Dave Jenkins wrote:
> Is there a way to get overlapping match results from Xpressive?  For 
> example, when searching for "aa" in the string "aaaa", I want three 
> results [as]as, a[aa]a, and aa[aa].  Currently, I'm only getting the two 
> non-overlapping results [aa]aa and aa[aa].
<snip>

The regex iterators only give non-overlapping results. If you want to 
find overlapping results, you can use the regex_search() algorithm 
iteratively, specifying the start position as what[0].first+1 instead of 
what[0].second.

HTH,

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com