[Boost-users] [regex] suggestion: function object for replace

From: Neil Hunt (boost_at_[hidden])
Date: 2007-08-01 22:17:53

Thanks for the excellent library John and others.

I could not easily find an option to specify a callback function that
somehow returns a custom built replacement string for use with
regex_replace.

The .NET framework utilises the MatchEvaluator mechanism:
http://msdn2.microsoft.com/en-us/library/system.text.regularexpressions.regex.replace.aspx

While there is no one definition of a string to return in the case of boost
regex's, perhaps a Range or a pair
of iterators would be sufficient (although temporaries may cause trouble for
the unwary).

Anyway, I have had need of of this mechanism and couldn't use the excellent
regex_replace as
a consequence.

Neil