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comp.lang.ruby

Fwd: [grammarians] First release of Rubyfront

MenTaLguY

2/17/2006 5:27:00 PM

For those interested in things Ruby and grammatical, grammarian Xue
Yong Zhi presents:

----- Forwarded message from yawl.20481481@bloglines.com -----
Date: 17 Feb 2006 05:22:01 -0000
From: yawl.20481481@bloglines.com
Reply-To: yawl.20481481@bloglines.com
Subject: [grammarians] First release of Rubyfront
To: rubygrammar-grammarians@rubyforge.org

I am glad to announce the first release of rubyfront (a ruby parser
powered by antlr).

Even though this is the first release, rubyfront can parse entire
ruby standard library (over 1500 .rb files).

To download or check out more details about rubyfront, please go to
http://seclib.bl.../2006/02/first-release-of-ruby...


Rubyfront uses BSD license. I am going to write more about it on my
blog later.

Xue Yong Zhi
http://seclib.bl...

_______________________________________________
Rubygrammar-grammarians mailing list
Rubygrammar-grammarians@rubyforge.org
http://rubyforge.org/mailman/listinfo/rubygrammar-g...

----- End forwarded message -----
6 Answers

ptkwt

2/18/2006 6:08:00 AM

0

In article <1140197197.43f6074d686cd@www.rydia.net>, <mental@rydia.net> wrote:
>For those interested in things Ruby and grammatical, grammarian Xue
>Yong Zhi presents:
>
>----- Forwarded message from yawl.20481481@bloglines.com -----
> Date: 17 Feb 2006 05:22:01 -0000
> From: yawl.20481481@bloglines.com
>Reply-To: yawl.20481481@bloglines.com
> Subject: [grammarians] First release of Rubyfront
> To: rubygrammar-grammarians@rubyforge.org
>
>I am glad to announce the first release of rubyfront (a ruby parser
>powered by antlr).
>
>Even though this is the first release, rubyfront can parse entire
>ruby standard library (over 1500 .rb files).
>
>To download or check out more details about rubyfront, please go to
>http://seclib.bl.../2006/02/first-release-of-ruby...
>
>
>Rubyfront uses BSD license. I am going to write more about it on my
>blog later.
>
>Xue Yong Zhi
>http://seclib.bl...
>
>_______________________________________________
>Rubygrammar-grammarians mailing list
>Rubygrammar-grammarians@rubyforge.org
>http://rubyforge.org/mailman/listinfo/rubygrammar-g...
>

This seems applicable to JRuby (since it's in ANTLR which is in Java). How
else might it be used?

Phil

David Vallner

2/18/2006 2:47:00 PM

0

Dna Sobota 18 Február 2006 07:28 Phil Tomson napísal:
> This seems applicable to JRuby (since it's in ANTLR which is in Java).
>

Not necessarily, it should be useful for all sorts of toolchains - it's just
not possible to invoke it from a Ruby app. It might also be interesting to
port this to pure Ruby once the ANTLR Ruby backend matures. (Correct me if
already did since I last checked.) Having a proper Ruby parser in Ruby might
make writing tools like RDoc much easier.

David Vallner

ptkwt

2/18/2006 7:14:00 PM

0

In article <200602181546.30323.david@vallner.net>,
David Vallner <david@vallner.net> wrote:
>D=C5=88a Sobota 18 Febru=C3=A1r 2006 07:28 Phil Tomson nap=C3=ADsal:
>> This seems applicable to JRuby (since it's in ANTLR which is in Java).
>>
>
>Not necessarily, it should be useful for all sorts of toolchains - it's jus=
>t=20
>not possible to invoke it from a Ruby app. It might also be interesting to=
>=20
>port this to pure Ruby once the ANTLR Ruby backend matures. (Correct me if=
>=20
>already did since I last checked.) Having a proper Ruby parser in Ruby migh=
>t=20
>make writing tools like RDoc much easier.
>

Quite true. It's been our 'holy grail' for several years now. I was not aware
taht ANTLR could generate a pure Ruby parser.

....of course there is Ripper (not sure what the current status is) and other
similar projects like ParseTree, nodeTree, etc.

Phil

MenTaLguY

2/18/2006 7:17:00 PM

0

On Sat, 2006-02-18 at 23:46 +0900, David Vallner wrote:

> Not necessarily, it should be useful for all sorts of toolchains -
> it's just not possible to invoke it from a Ruby app. It might also be
> interesting to port this to pure Ruby once the ANTLR Ruby backend
> matures. (Correct me if already did since I last checked.)

I think it's pretty mature now actually, though I haven't played with
it. The Ruby backend is part of ANTLR v3, though. yawl's grammar is
for v2.

Martin (the author of the v3 Ruby backend) has a partial v3 Ruby grammar
in TRGP SVN now; I don't know whether we'll ultimately polish that up,
or port yawl's grammar to v3. At the moment, Ter's leaning towards the
latter, as it's more complete. But we'll see how it goes.

> Having a proper Ruby parser in Ruby might make writing tools like RDoc
> much easier.

That's the plan. Not to mention Ruby implementations like JRuby.

I've actually got some evil ideas for a Ruby-in-Javascript
implementation (Ruby in the browser, yay!), but I'm not touching that
one until we have a decent parser waiting in the wings.

-mental

MenTaLguY

2/18/2006 8:47:00 PM

0

On Sun, 2006-02-19 at 04:38 +0900, Phil Tomson wrote:
> Quite true. It's been our 'holy grail' for several years now. I was not aware
> taht ANTLR could generate a pure Ruby parser.

The Ruby backend will be new with ANTLR v3.

> ....of course there is Ripper (not sure what the current status is) and other
> similar projects like ParseTree, nodeTree, etc.

Ripper, ParseTree, etc more or less piggyback on the existing parser in
the current Ruby interpreter.

-mental

David Vallner

2/19/2006 12:09:00 PM

0

Dna Sobota 18 Február 2006 20:38 Phil Tomson napísal:
> Quite true. It's been our 'holy grail' for several years now. I was not
> aware taht ANTLR could generate a pure Ruby parser.
>
> ....of course there is Ripper (not sure what the current status is) and
> other similar projects like ParseTree, nodeTree, etc.
>

Not to diss all those projects, but ANTLR has that "major" ting to it. Even if
we had other flawless pure ruby parsers, having an ANTLR grammar around for
all manners of "Ruby in not-Ruby" weirdness seems to definately to have perks
by itself.

I wonder if mental is petting a white persia cat plotting his evil plan...

David Vallner