[Boost-users] Regex: option for case insensitive match

[Kiran Reddy]

Hello,

I need to make an case insensitive match using regex_match()
algorithm. How do I specify that?

Thanks in advance.

Regards
Kiran

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[Detlef Meyer-Eltz]

set icase for the syntax options of your regex:

boost::regex_constants::syntax_option_type f = boost::regex_constants::normal;
f |= boost::regex_constants::icase;
boost::regex expr("123", f);


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am Donnerstag, 11. August 2005 um 12:29 schrieben Sie:

[John Maddock]

> I need to make an case insensitive match using regex_match()
> algorithm. How do I specify that?

You do it when you construct the regex, so for example:

boost::regex re("abc", boost::regex::perl | boost::regex::icase); // a case
insensitive Perl style expression.

John.