Re: C++ parsing : what's new ?

"Mein Lufkissenfahrzeug ist voller Aale"
said Peter H. Froehlich (pfroehli@ics.uci.edu) in
>On Saturday, December 29, 2001, at 10:30 , Travis Nixon wrote:
>
>> "Martin von Loewis" <loewis@informatik.hu-berlin.de> wrote in message
>>> The gcc grammar is currently being rewritten, from a bison-based one
>>> to a hand-written recursive-descent parser.
>>
>> Is there a discussion online anywhere about the reasons for doing
>> this?
>
>As I recall the motivation is performance. The people doing the
>rewrite expect the recursive descent parser to be way faster than
>the table-driven one they have now. However, I sure would *not*
>want to write a parser like that for a grammar as hairy as
>C/C++. :-)


I hear a lot of people giving opinions like this but I wonder how much
experience they have had in creating recursive descent parsers. Having
done one for my final project for my degree I can say it's not really as
difficult as you might think.
--
Gwyn Judd (print `echo 'tjla@guvfybir.qlaqaf.bet' | rot13`)

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