bitstring should have a -ppx frontend

[GoogleCodeExporter]

Supporting a ppx frontend to the syntax extension ( see eg. 
http://whitequark.org/blog/2014/04/16/a-guide-to-extension-points-in-ocaml/ for 
a presentation of ppx ) would make it easier to work with new OCaml tooling, 
such as the Merlin editor assistant. A bitstring user recently enquired about 
bitstring support, and upstream's answer was that a ppx frontend would work 
better with Merlin:

  https://github.com/the-lambda-church/merlin/issues/358#issuecomment-75368160 

(Some people have expertise porting camlp4 extension to ppx and might be 
willing to help; you could consider sending a request to caml-list.)

Original issue reported on code.google.com by [email protected] on 21 Feb 2015 at 1:04

[GoogleCodeExporter]

I gave a shot at it for the match operator: 
https://github.com/xguerin/ppx_bitstring . Please let me know if you have any 
comment and/or if you want to merge it. I plan to do the same for the builder.

Original comment by [email protected] on 8 Mar 2015 at 1:58