Ok, but that still doesn't answer my question (on how to connect the
stdin channel to a <> compatible char stream).

> I sometimes used the Stream-Module.
> But in the last time I switched more to ocamllex/ocamlyacc.
> The reason is, that I find them a good tool for many things.
> But I didn't tried the camlp4-stuff. It may be more easy to
> write complicated parsers with thema and maybe more elegant.

The documentation says that the parser interface is no longer
supported by proper ocaml, so we need to preprocess with ocampp4.
 
> But one reason to use ocamllex/ocamlyacc is that they are
> similar to lex/yacc, and therfore, if programming in a
> commercial field, porting the Ocaml-software back to C
> (even if not really happy about this), is easier.

The parser interface seems to be a nice thing if you want to "script"
in ocaml - that is, if you want to write quick and dirty solutions to
problems that you would ordinarily do in Perl/PYthon etc.

Of course, if you want to write a more complex parser, it's better to
do it in lex/yacc.

SH