Question

I am trying to store a regular expression within a variable, i.e if we had a regular expression, \\d and a string, std::string str; then I would store the regular expression \\d within std::string str. From that I could then use str whenever I wanted to use that regular expression.

I tried something like this:

Boost::regex const string_matcher("\\d");
std::string str = string_matcher;

However I realized that it would not work. Does anyone have any ides of how I can store a regular expression?

Answer 1

std::string regex = "\\d";
boost::regex expression(regex);
bool ok = boost::regex_match(testStr, expression);