Railroad track syntax diagrams

[Ralf Muschall]

Paddy wrote:

> I googlled and got these:
>   http://www.informatik.uni-freiburg.de/~thiemann/haskell/ebnf2ps/
>   http://www.antlr.org/share/1107033888258/SDG2-1.5.zip

There is another beast, also called ebnf2ps, but in elisp
(runs inside the editor).

It requires no additional software (i.e. no ghc) and is simpler
to use (no questions about inexistent .afm files etc.)

Ralf