void operator()(const std::string& ua,
const RegexImpl::smatch& matches,
const size_t group,
Result& result) const
{
if (v_)
{
result.*f_ = *v_;
return;
}
if (f_ && matches.size() >= group)
{
auto v = matches[group].str();
result.*f_ = fn_ ? fn_(std::move(v)) : std::move(v);
}
}
inline bool re_search_helper(Text const& txt, const boost::smatch &what, size_t depth, Arg arg, Args&&... args)
{
if (depth >= what.size()) {
return false;
}
// If the match was optional and unmatched, skip it and leave the variable uninitialized.
if (what[depth].matched) {
try {
using ArgType = typename std::pointer_traits<Arg>::element_type;
auto val = boost::lexical_cast<ArgType>(what[depth]);
*arg = val;
} catch (const boost::bad_lexical_cast &e) {
return false;
}
}
return re_search_helper(txt, what, depth+1, std::forward<Args>(args)...);
}