Hi Akira,
I prefer Sprout.Weed as a compile-time syntax analysis library. https://github.com/bolero-MURAKAMI/Sprout/tree/master/sprout/weed
Sprout.Weed support Boost.Spirit.Qi like syntax. Genya Murakami is an author, seems to be willing to propose to Boost. http://thread.gmane.org/gmane.comp.lib.boost.devel/227096/focus=227134
If you think about this library?
I've seen this library. It parses using constexpr, while Metaparse uses template metaprograms. I can't see how one could do the following using constexpr: - generate template metafunction classes as the result of parsing that are immediately callable (build a DSL for metaprograms) - printf argument verification (by parsing the format string) at compile-time - create types as the result of parsing One of the examples of Metaparse (constexpr_parser) demonstrates how to combine a parser based on constexpr functions with ones based on template metaprogramming. It is a parser for an "a* b* a*" grammar and parses the "a*" parts using metaprograms and the "b*" parts using constexpr functions. The documentation of Metaparse describes the difference as well (http://abel.web.elte.hu/metaparse/metaparse/manual.html#_parsing_based_on_tt...). Regards, Abel