From: Pietro Abate <Pietro.Abate@anu.edu.au>
To: ocaml ml <caml-list@inria.fr>
Subject: [Caml-list] parse <tags>
Date: Mon, 1 Dec 2003 16:55:32 +1100 [thread overview]
Message-ID: <20031201055532.GA27781@anu.edu.au> (raw)
Hi all,
I'm trying to write a simple parser (below) but I've problems parsing tag-like
keywords. Probably this is a problem related with the lexer. does anybody know
a solution that doesn't imply heavy modifications to the (Genlex) lexer ?
p
code:
#load "camlp4o.cma";;
(* this doesn't work and it's what I want *)
open Genlex;;
let s = "<foo>";;
let flexer = make_lexer [s];;
let s' = flexer (Stream.of_string s);;
let parse_input_line = parser
[< 'Kwd "<foo>" >] -> Printf.printf "bingo !"
;;
parse_input_line s';;
(* this works, but I want < > !! *)
let s = "foo";;
let flexer = make_lexer [s];;
let s' = flexer (Stream.of_string s);;
let parse_input_line = parser
[< 'Kwd "foo" >] -> Printf.printf "bingo ?"
;;
parse_input_line s';;
--
++ As I grow older, I pay less attention to what men say.
I just watch what they do. Andrew Carnegie (1835-1919).
++ Please avoid sending me Word or PowerPoint attachments.
See http://www.fsf.org/philosophy/no-word-attachments.html
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next reply other threads:[~2003-12-01 6:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-01 5:55 Pietro Abate [this message]
2003-12-01 10:22 ` Stefano Zacchiroli
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