Re: [Hsqldb-developers] Re:store procedure -new lexer and parser

[fredt <fr...@us...>]

I think with Antlr or JavaCC we will have to rewrite some of their code =
for our purposes. Antlr is public domain, while JavaCC is now =
distributed under a BSD style license. We can make whatever =
modifications we need for our purposes. (Not that I'm suggesting either =
product is OK as a base. What software to use is still an open =
question.)

We will need to determine our backtracing or lookahead requirements as =
this is the main cause of speed degredation in grammar based parser =
generators. A fairly up-to-date list is at:

http://www.cs.rhul.ac.uk/research/languages/projects/lookahead_backtrack.=
shtml


Fred


Campbell wrote:

>Personally, I would advise against ANTLR.