template<>

tk::grm::action<helpkw> struct

Find keyword among all keywords and if found, store the keyword and its info on which help was requested behind tag::helpkw in Stack.

This struct and its apply function are used as a functor-like wrapper to search for a keyword in the pool of registered keywords recognized by a grammar and store the keyword and its info on which help was requested behind tag::helpkw. Note that this functor assumes a specific location for the std::maps of the command-line and control file keywords pools (behind tag::cmdinfo and tag::ctrinfo, respectively), and for the keyword and its info on which help was requested (behind tag::helpkw). This is the structure of CmdLine objects, thus this functor should be called from command line parsers.