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Re: lex and yacc...
- To: cygwin-list <cygwin@sourceware.cygnus.com>
- Subject: Re: lex and yacc...
- From: Paul Berrevoets <paul@swi.com>
- Date: Thu, 20 May 1999 10:41:47 -0400
- Organization: SWI Systemware/Halcyon Inc.
- References: <19990520094727.23804.fmail@263.net>
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
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