Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm
Sender: cygwin-owner@sourceware.cygnus.com
Delivered-To: mailing list cygwin@sourceware.cygnus.com
Message-ID: <37441F2B.D9AF7F98@swi.com>
Date: Thu, 20 May 1999 10:41:47 -0400
From: Paul Berrevoets <paul@swi.com>
Organization: SWI Systemware/Halcyon Inc.
X-Mailer: Mozilla 4.51 [en] (WinNT; U)
X-Accept-Language: en
MIME-Version: 1.0
To: cygwin-list <cygwin@sourceware.cygnus.com>
Subject: Re: lex and yacc...
References: <19990520094727.23804.fmail@263.net>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Content-Transfer-Encoding: 7bit

shichunhui@263.net wrote:

> Hi,anyone here has used the lex and yacc in the cygwin?
> I found a byacc and a bison, a flex and a flex++,
> but I am not sure of their usage.Is there anything different
> from the lex,yacc of unix?

We have a number of libraries that use flex and bison. They used to use
lex and yacc - some ported without any modifications. Of particular
note, one library relies on recursive calls to yyparse, which with yacc
required a lot of extra bookkeeping for the global variables. Bison is
better in this regard because most of the variables are on the stack,
which makes recursive use a no-brainer.
--------------------------------------------
Paul Berrevoets              paul@halcyon.ca
Halcyon Inc.           http://www.halcyon.ca

--
Want to unsubscribe from this list?
Send a message to cygwin-unsubscribe@sourceware.cygnus.com

