19:36 <mrvn> moin

19:37 <phubuh> sup

19:38 <mrvn> let($)f g x=f(g x)let r v k o s=k v(s+o+2*((o-v)asr 30)*o)let i=r 1let v=r 5let

19:38 <mrvn> x=r 10let l=r 50let c=r 100let d=r 500let m=r 1000let s x=x(fun o x->x+o)0 0;;

19:38 <mrvn> s (m$c$m$l$x$x$x$i$v);;

19:39 <mrvn> Anyone an idea how do to this with less code? It calculates roman numbers (like mcmkxxxiv=1984)

19:39 <mrvn> s/k/l/

20:01 <stepcut> I want to make an interpreter that can read a program written in an ML-like language from the command-line and run it. I am thinking a good way to do this might be to use camlp4 to parse the command-line into an AST, and then write code to interprete the AST. But I can't find any examples of someone doing this, so maybe its a bad idea after all?

20:03 <mrvn> camlp4o should be an example.

20:03 <mrvn> parses ocaml into an AST used by the compiler/interpreter

20:04 <stepcut> true

20:07 <mrvn> das liegt meist an der Frequenz

20:07 <mrvn> ups

20:12 <stepcut> lets say I do something like: let ast = Grammar.Entry.parse Pcaml.expr (Stream.of_string "let a = 5 in a");;

20:12 <stepcut> now ast is of type MLast.expr

20:14 <stepcut> Is there some function I can call that will try to interpret an MLast.expr?

20:17 <stepcut> I can't really figure anything useful to do after I get an MLast.expr ... I think I am missing something

20:43 <mrvn> stepcut: in the interpreter yes

20:44 <mrvn> I think.

20:44 <mrvn> There is a function that can parse and evaluate a string.