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[ptp-dev] Re: ANTLR licensing issues
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Re: the ANTLR generated files, it's a murky problem and I wouldn't want to
hazard a guess. I'm pretty sure if you ask an IP lawyer they'd probably be
leery.
FYI we've started using the LPG parser generator and have been having
relative success with it so far with our C99 grammar. It's a bit tricky
though trying to resolve ambiguities in the grammar because we don't get to
use syntactic predicates the way you can in ANTLR. We're trying to see if
we can force the parser to backtrack in a semantic action by putting an
error token on the stack.
===========================
Chris Recoskie
Team Lead, IBM CDT Team
IBM Toronto
http://www.eclipse.org/cdt
From: Craig Rasmussen <crasmussen@xxxxxxxx>
To: Parallel Tools Platform general developers <ptp-dev@xxxxxxxxxxx>
Cc: Doug Schaefer <DSchaefer@xxxxxxx>, Chris
Recoskie/Toronto/IBM@IBMCA, "Christopher D. Rickett"
<crickett@xxxxxxxx>
Date: 29/11/2006 11:53 AM
Subject ANTLR licensing issues
:
At the last PTP telecon, Doug brought up the unpleasant possibility
that we may not be able to use ANTLR because of licensing issues. As
we are rather far along with the Fortran 2003 grammar, this would be
unfortunate. Chris Rickett and I have been discussing the
possibility of replacing the ANTLR runtime if there are licensing
issues with it. Fortran lexing is problematic anyway, so it wouldn't
be too far out of bounds for us to replace the whole runtime.
My question is, is there any licensing issues with the EPL using
ANTLR generated files (both parser and lexer) and not the runtime
(jar files)?
Cheers,
Craig
