From: John Maddock (john_at_[hidden])
Date: 2005-08-12 07:33:10
All of the following comments apply to the newly release Boost-1.33
> *Multiline*
multiline is on by default. To turn it off either:
1) prefix your expression with (?-m)
2) compile your expression with the flag no_mod_m set: boost::regex
r("^abc", boost::regex::perl | boost::regex::no_mod_m);
3) Pass the "match_single_line" flag to one of the matching/searching
algorithms/iterators.
> *ExplicitCapture*
Named captures aren't supported.
> *Singleline*
This is on by default, you can turn it off by either:
1) Prefix your expression with (?-s)
2) Compile the expression with the flag no_mod_s set: boost::regex
r("^abc", boost::regex::perl | boost::regex::no_mod_s);
3) Pass " match_not_dot_newline" flag to one of the matching/searching
algorithms/iterators.
> *IgnorePatternWhitespace*
Is this the same as Perl's x-modifier? If so then either:
1) Prefix your expression with (?x)
2) Compile your expression with the flag mod_x set: boost::regex
r("^abc", boost::regex::perl | boost::regex::mod_x);
John.