From: Sen Horak <sen.horak@gmail.com>
To: caml-list@yquem.inria.fr
Subject: Stream parser/make_lexer
Date: Sun, 26 Jun 2005 12:12:40 +0200 [thread overview]
Message-ID: <a80eebd40506260312508f0408@mail.gmail.com> (raw)
Hi,
I tried building a small parser using Genlexer.make_parser and the
stream parser through the camlp4 preprocessor. I'm using the ocaml
compiler 3.08.1.
let lexer=make_lexer ["begin";"end";...]
let parse = parser
[<'Kwd "name=";'String t>] -> wm#setname t
| ...
let istream = of_channel stdin
let ilexer = lexer istream in
parse ilexer
The program exits with a Stream.Failure exception. The "stream
builders" documentation clearly says that we are not to mix the of_*
functions to build streams with <> streams - so I guess this is
expected. Although I've come across some examples that use of_string
to build the char stream and use the lexer on it.
How then does one build a stream compatible with the stream parser
connected to stdin?
Also, is the make_lexer/stream parser way of building a parser
deprecated? I find it a convenient way to build small parsers quickly.
Or do most ocaml programmers just use ocamllex/ocamlyacc for
everything?
SH
next reply other threads:[~2005-06-26 10:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-26 10:12 Sen Horak [this message]
2005-06-26 12:18 ` [Caml-list] " Oliver Bandel
2005-06-26 13:25 ` Sen Horak
2005-06-26 14:24 ` Oliver Bandel
2005-06-26 13:52 ` Virgile Prevosto
2005-06-27 11:24 ` Sen Horak
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