From: Oliver Bandel <oliver@first.in-berlin.de>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] some comments on ocaml{lex,yacc} from a novice's POV
Date: Tue, 5 Apr 2005 18:06:12 +0200 [thread overview]
Message-ID: <20050405160612.GA605@first.in-berlin.de> (raw)
In-Reply-To: <20050402.163851.88994843.garrigue@math.nagoya-u.ac.jp>
On Sat, Apr 02, 2005 at 04:38:51PM +0900, Jacques Garrigue wrote:
> From: "Jack Andrews" <effbiae@ivorykite.com>
[...]
> > # calclex.py
> > import lex
> > tokens = ( 'NUMBER', 'PLUS', 'MINUS', 'TIMES', 'DIVIDE', 'LPAREN', 'RPAREN',)
> > t_PLUS = r'\+' # in python, the r prefix to a string literal
> > t_MINUS = r'-' # means as-is. r'\' in python is "\\" in c
> > [snip]
>
> Interestingly, your example corresponds exactly to the one in the
> ocaml tutorial, where it is solved using stream parsers.
> Stream parsers are a bit more involved than just writing yacc rules,
> but they give you more control on how to combine rules (you can write
> parser combinators.) And they are completely integrated in the
> language using camlp4.
...which lacks adequate documentation... :(
Btw: Is the campl4-tutorial-project growing?
Ciao,
Oliver
next prev parent reply other threads:[~2005-04-05 16:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-01 11:32 bug in "developing applications with objective caml" (english translation) Jack Andrews
2005-04-01 20:03 ` [Caml-list] " Ken Rose
2005-04-02 5:10 ` some comments on ocaml{lex,yacc} from a novice's POV Jack Andrews
2005-04-02 7:02 ` [Caml-list] " Erik de Castro Lopo
2005-04-02 7:38 ` Jacques Garrigue
2005-04-03 16:18 ` Parser combinators [was: some comments on ocaml{lex,yacc} from a novice's POV] Alex Baretta
2005-04-04 0:40 ` [Caml-list] Parser combinators Jacques Garrigue
2005-04-05 16:06 ` Oliver Bandel [this message]
[not found] ` <50130.202.164.198.46.1112418605.squirrel@www.ivorykite.com>
2005-04-04 3:42 ` some comments on ocaml{lex,yacc} from a novice's POV Jack Andrews
2005-04-04 5:44 ` [Caml-list] " Erik de Castro Lopo
2005-04-04 9:51 ` Jon Harrop
2005-04-05 12:00 ` Geoff Wozniak
2005-04-05 13:49 ` Jon Harrop
2005-04-05 14:26 ` Richard Jones
2005-04-05 16:13 ` Oliver Bandel
2005-04-06 4:52 ` Geoff Wozniak
2005-04-06 5:12 ` Kenneth Knowles
2005-04-06 6:15 ` some comments on ocaml{lex,yacc} from anovice's POV Jack Andrews
2005-04-04 10:29 ` [Caml-list] Re: some comments on ocaml{lex,yacc} from a novice's POV Daan Leijen
2005-04-04 17:39 ` Paul Snively
2005-04-04 18:16 ` skaller
2005-04-04 18:49 ` Paul Snively
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