* Why Gnat doesn't use Yacc?
@ 1996-12-31 0:00 XiangQiang Zhang
1996-12-31 0:00 ` David Emery
0 siblings, 1 reply; 2+ messages in thread
From: XiangQiang Zhang @ 1996-12-31 0:00 UTC (permalink / raw)
Hello, everyone.
I am reading the source code of the Gnat. and I wonder why Gnat
doesn't use yacc? And without Yacc or the similar tool, how the
compiler organized?
Please send the letter to me, because I can't access the news server.
Thanks a lot.
XiaoQiang Zahng
mailto:s605@nudt.edu.cn
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Why Gnat doesn't use Yacc?
1996-12-31 0:00 Why Gnat doesn't use Yacc? XiangQiang Zhang
@ 1996-12-31 0:00 ` David Emery
0 siblings, 0 replies; 2+ messages in thread
From: David Emery @ 1996-12-31 0:00 UTC (permalink / raw)
>I wonder why Gnat doesn't use yacc?
Gnat uses a much superior parser-generator called "Dewar" :-)
In particular, this parser generator technology is much better at
handling error recovery than Yacc. It also produces substantially
faster parsers. Unfortunatly, "Dewar" is proprietary to Ada Core
Technologies.
dave
--
<.sig is away on vacation>
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