| RE: [cdt-dev] FW: [eclipse-dev] C# plugin for Eclipse |
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Hi Doug, >ANTLR is LL(*) BTW, where I assume LLK is, well,
LL(k). ANTLR is much more >powerful and makes grammar writing a hell of a lot
easier. It actually >meets >the needs we had for our C++ grammar which we
ended up doing by hand >because >none of the parser generators could do LL(*). Good
times ahead for us >parser >writers :)! As I remember we have already had an experience of
using the generated parsers and the first CDT parser AFAIK was generated by the
JavaCC which as I understand is capable of generating LL(k) parsers. As I understand, this approach failed previously and
we have discarded it once in the past. Here is the snippet of the CDT Parser Proposal
dated by 01/14/2003 residing in the core-home: "For simple languages .., one would generally use
a parser generator, such as JavaCC or
ANTLR, to generate the code that implements this algorithm.
.. However, when the language is complex and
ambiguous as C++ is and when we need to do special handling for things such as
the CModel (which needs to be so fast that we can't afford to follow
inclusions, thus leaving many types undefined) it is easier to write these algorithms by hand and this is
how the CDT parser is written." What is the reason then in switching back to parser
generation? Are there any advantages of using ANTLR over JavaCC? Thanks, Mikhail -----Original Message----- I'm writing a C# grammar from scratch using an early adopter version of ANTLR v3 which is BSD licensed. Once ANTLR v3 reaches completion, I'll
bring it through the Eclipse legal to hopefully allow it to be included in
Eclipse projects. For now, you'll have to download it separately and install it
into the appropriate projects (more on that later). ANTLR is LL(*) BTW, where I assume LLK is, well, LL(k). ANTLR is much
more powerful and makes grammar writing a hell of a lot easier. It actually
meets the needs we had for our C++ grammar which we ended up doing by hand
because none of the parser generators could do LL(*). Good times ahead for us
parser writers :)! Doug Schaefer, QNX Software Systems Eclipse CDT Project Lead, Tools PMC member http://cdtdoug.blogspot.com -----Original Message----- From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx]
On Behalf Of Chris Recoskie Sent: Thursday, June 15, 2006 2:12 PM To: kap4020@xxxxxxx; Subject: Re: [cdt-dev] FW: [eclipse-dev] C# plugin for Eclipse They generate their parser via LLK. The resulting generated
parser code is under the LGPL license, as they use the example C# grammar, which
itself was LGPL. The LGPL is not compatible with the EPL currently. I am not a lawyer but I think that makes the idea of contributing it to Eclipse dead in the water for now. =========================== Chris Recoskie Team Lead, IBM CDT Team IBM Toronto http://www.eclipse.org/cdt
Karol
Pietrzak
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On Tuesday 13 June 2006 08:34, Doug Schaefer wrote: > Yes, I have a Google SOC student working towards that and I?ve
been working > on a C# parser (at least until the CDT 3.1 storm hit). I think
it?s a > natural fit. > I?ll have to think about how I?d organize this activity. There is
a lot of > work to do to make this happen, including editor support, DOM
support, > managed build, debug. I?m not sure how it fits in our mandate,
whatever our > mandate really is, so I?ve been thinking of hosting it at our
SourceForge > project, cdt-contrib. > Anyone else interested in working on this? I second Mike Milinkovich's point that if CDT seems to be the best
place for a C# Eclipse, then so be it! However, I would just like to point out that there is already a C#
Eclipse plugin in current development [1]. It's also quite far along, with the following features (quoted from the webpage): - Syntax highlight. - Smart indent. - Outline page. - Format action and syntax checking. - Comment and uncomment actions. Doug Schaefer: I'm looking at the proposal, and I'm not quite
understanding whether Rebecca Chernoff will be working on a Mono Eclipse plugin or
the IDE Generator? Thanks! [1] http://black-sun.sourceforge.net/csharp-editor/index.html -- Karl Pietrzak kap4020@xxxxxxx (See attached file: attplmda.dat) _______________________________________________ cdt-dev mailing list cdt-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/cdt-dev _______________________________________________ cdt-dev mailing list cdt-dev@xxxxxxxxxxx https://dev.eclipse.org/mailman/listinfo/cdt-dev |