Re: [boost] [regex] regex_replace maxMatches

From: John Maddock (john_at_[hidden])
Date: 2006-02-17 05:33:28

> how can I implement regex_replace, that it only
> replaces a given numbers of occurencies?

You more or less have to do what regex_replace does internally: construct a 
regex_iterator and when each match is found:

1) Copy the last prefix to the output string (everything that wasn't matched 
since the previous match).
2) Call match_results<>::format to create the replacement text and append it 
to the output.
3) move to the next match if there is one and go back to (1).

and finally: when you've found all the matches, don't forget to copy 
everything from the end of the last match to the end of the text to output.

You'll find exactly that that code in boost/regex/v4/regex_replace.hpp, and 
it's commendably short too :-)

John.