From: Michal Moskal <malekith@pld-linux.org>
To: David Van Horn <dvanhorn@cs.uvm.edu>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Notion of lexer state in ocamllex?
Date: Sat, 30 Aug 2003 11:22:47 +0200 [thread overview]
Message-ID: <20030830092247.GA6055@roke.freak> (raw)
In-Reply-To: <3F4FBB16.5000006@cs.uvm.edu>
On Fri, Aug 29, 2003 at 03:44:06PM -0500, David Van Horn wrote:
> I'm new to ocamllex and I am trying to translate a lexer written using CUP
> (for Java), but I don't understand how parser state is accomplished in
> ocamllex. For example, I have:
>
> <YYINITIAL>"/*" { yybegin(INCOMMENT); }
> <INCOMMENT>"*/" { yybegin(YYINITIAL); }
> <INCOMMENT>[^\*]+ { }
>
> Any ideas how to do this in ocamllex? Thanks.
rule token = parse
...
| "/*" { comment lexbuf; token lexbuf }
...
and comment = parse
"*/" { () }
_ { comment lexbuf }
Or something like this.
--
: Michal Moskal :: http://www.kernel.pl/~malekith : GCS {C,UL}++++$ a? !tv
: When in doubt, use brute force. -- Ken Thompson : {E-,w}-- {b++,e}>+++ h
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prev parent reply other threads:[~2003-08-30 9:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-29 20:44 David Van Horn
2003-08-30 9:22 ` Michal Moskal [this message]
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