From: Sebastian Egner <sebastian.egner@philips.com>
To: skaller <skaller@users.sourceforge.net>
Cc: caml-list@yquem.inria.fr, caml-list-bounces@yquem.inria.fr
Subject: Re: [Caml-list] ocamlyacc -- can i tell it to be quiet?
Date: Fri, 18 Nov 2005 15:16:04 +0100 [thread overview]
Message-ID: <OFC3EA1194.47FD1C2C-ONC12570BD.004E0D15-C12570BD.004E88BD@philips.com> (raw)
In-Reply-To: <1132322923.10869.29.camel@rosella>
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> The following leads to shift reduce conflict:
>
> ctype_name:
> | LONG LONG
> | LONG
>
> Yacc is very weird -- I can parse a list of LONG without
> a conflict .. but not two of them??
>
> Is there any way to tell it to shut up?
Rather than trying to solve this in the LALR parser (which
might involve a major rewrite of the grammer in this case),
the easiest way is to adapt the _lexer_ to produce two
different tokens for "long" and for "long long": The lexer
(ocamllex) always goes for the longest match, and in this
case this is what you want ;-).
Sebastian.
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next prev parent reply other threads:[~2005-11-18 14:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-18 14:08 skaller
2005-11-18 14:16 ` Sebastian Egner [this message]
2005-11-18 15:59 ` [Caml-list] " skaller
2005-11-18 14:22 ` skaller
2005-11-18 14:34 ` Jon Harrop
2005-11-18 14:58 ` Christian Lindig
2005-11-18 14:40 yoann padioleau
2005-11-18 16:25 ` skaller
2005-11-18 16:34 yoann padioleau
2005-11-18 17:56 ` skaller
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