static-const-nontrivial-init

line.cpp

void strip_line(string & line) {
	static const vector<regex> regices = [&]() {
		vector<regex> temp(3);
		for(const auto reg : {"#.*", " +$", "^ +"})  // comment, start-of-line space, end-of-line space
			temp.emplace_back(reg, regex_constants::optimize);
		return temp;
	}();  // <-- any better way of doing this?

	for(const auto & rgx : regices)
		line = regex_replace(line, rgx, "");
}