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Posted to dev@maven.apache.org by Jochen Kuhnle <jo...@kuhnle.net> on 2007/07/12 12:08:53 UTC
Antlr2/3 compatibility with maven-antlr3-plugin
Hi,
I tried out the antlr3 plugin and ran into a dependency problem:
antlr-3.0 depends on stringtemplate-3.0 which depends on antlr-2.7.x.
Since antlr-2 and -3 are fundamentally incompatible (API packages
renamed, grammar file format changed), this does not work.
I propose to change the artifactId of antlr-3.0 to antlr3-3.0, and to
change the default directories of the plugin to "src/main/antlr3" and
"target/generated-sources/antlr3". This allows using antlr-2.x and
antlr-3.0 and the respective plugins side by side.
Regards,
Jochen
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Re: Antlr2/3 compatibility with maven-antlr3-plugin
Posted by Jochen Kuhnle <jo...@kuhnle.net>.
On 2007-07-12 15:47:31 +0200, David Holroyd <da...@badgers-in-foil.co.uk> said:
> Hi,
>
> On Thu, Jul 12, 2007 at 12:08:53PM +0200, Jochen Kuhnle wrote:
>> I tried out the antlr3 plugin and ran into a dependency problem:
>> antlr-3.0 depends on stringtemplate-3.0 which depends on antlr-2.7.x.
>> Since antlr-2 and -3 are fundamentally incompatible (API packages
>> renamed, grammar file format changed), this does not work.
>
> However, the two ANTLRs have different groupIds, so there should be no
> problem due to these dependencies, I think?
>
> antlr:antlr:2.7.x vs. org.antlr:antlr:3.0
>
> (Still pretty confusing though.)
You're right, of course. Please excuse me, I had a wrong stringtemplate
pom in my repo left over from playing around with antlr. I obviously
forgot to do my Repository-"Kehrwoche"
(http://www.training-for-germany.de/tips99/tipkw.htm), inexcusable for
somone from Stuttgart...
>
> What specific errors did you encounter?
A "think before you type error" on my side...
>
>
>> I propose to change the artifactId of antlr-3.0 to antlr3-3.0, and to
>> change the default directories of the plugin to "src/main/antlr3" and
>> "target/generated-sources/antlr3". This allows using antlr-2.x and
>> antlr-3.0 and the respective plugins side by side.
>
> I took "src/main/antlr" as the default for the v3 plugin on the
> assumption that if anyone wanted to do this, they could just specify
> different folders by hand. Also, IIRC, the v2 plugin does not have a
> default directory for the v3 plugin to clash with -- you have to
> explicitly tell it where to find the source v2 grammars, I think?
>
> I think that most people will just be using one version of the plugin,
> and the few wanting both can configure a non-default value. If you can
> show a reasonable case for changing the default, I'll take a look
> though.
>
>
> ta,
> dave
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Re: Antlr2/3 compatibility with maven-antlr3-plugin
Posted by David Holroyd <da...@badgers-in-foil.co.uk>.
On Fri, Jul 13, 2007 at 06:21:24AM +1000, Brett Porter wrote:
> I also didn't think stringtemplate used antlr2 at runtime, I thought
> it was just at compile time?
The StringTemplate build needs the ANTLRv2 tool to compile its grammar
and the StringTemplate artifact needs the ANTLRv2 'runtime' to execute
the resulting parser. In v2, tool and runtime are in the same artifact,
so the dependency is correct, I think.
ta,
dave
--
http://david.holroyd.me.uk/
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Re: Antlr2/3 compatibility with maven-antlr3-plugin
Posted by Brett Porter <br...@apache.org>.
I agree with David.
I also didn't think stringtemplate used antlr2 at runtime, I thought
it was just at compile time?
- Brett
On 12/07/2007, at 11:47 PM, David Holroyd wrote:
> Hi,
>
> On Thu, Jul 12, 2007 at 12:08:53PM +0200, Jochen Kuhnle wrote:
>> I tried out the antlr3 plugin and ran into a dependency problem:
>> antlr-3.0 depends on stringtemplate-3.0 which depends on antlr-2.7.x.
>> Since antlr-2 and -3 are fundamentally incompatible (API packages
>> renamed, grammar file format changed), this does not work.
>
> However, the two ANTLRs have different groupIds, so there should be no
> problem due to these dependencies, I think?
>
> antlr:antlr:2.7.x vs. org.antlr:antlr:3.0
>
> (Still pretty confusing though.)
>
> What specific errors did you encounter?
>
>
>> I propose to change the artifactId of antlr-3.0 to antlr3-3.0, and to
>> change the default directories of the plugin to "src/main/antlr3" and
>> "target/generated-sources/antlr3". This allows using antlr-2.x and
>> antlr-3.0 and the respective plugins side by side.
>
> I took "src/main/antlr" as the default for the v3 plugin on the
> assumption that if anyone wanted to do this, they could just specify
> different folders by hand. Also, IIRC, the v2 plugin does not have a
> default directory for the v3 plugin to clash with -- you have to
> explicitly tell it where to find the source v2 grammars, I think?
>
> I think that most people will just be using one version of the plugin,
> and the few wanting both can configure a non-default value. If you
> can
> show a reasonable case for changing the default, I'll take a look
> though.
>
>
> ta,
> dave
>
> --
> http://david.holroyd.me.uk/
>
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> To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
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Re: Antlr2/3 compatibility with maven-antlr3-plugin
Posted by David Holroyd <da...@badgers-in-foil.co.uk>.
Hi,
On Thu, Jul 12, 2007 at 12:08:53PM +0200, Jochen Kuhnle wrote:
> I tried out the antlr3 plugin and ran into a dependency problem:
> antlr-3.0 depends on stringtemplate-3.0 which depends on antlr-2.7.x.
> Since antlr-2 and -3 are fundamentally incompatible (API packages
> renamed, grammar file format changed), this does not work.
However, the two ANTLRs have different groupIds, so there should be no
problem due to these dependencies, I think?
antlr:antlr:2.7.x vs. org.antlr:antlr:3.0
(Still pretty confusing though.)
What specific errors did you encounter?
> I propose to change the artifactId of antlr-3.0 to antlr3-3.0, and to
> change the default directories of the plugin to "src/main/antlr3" and
> "target/generated-sources/antlr3". This allows using antlr-2.x and
> antlr-3.0 and the respective plugins side by side.
I took "src/main/antlr" as the default for the v3 plugin on the
assumption that if anyone wanted to do this, they could just specify
different folders by hand. Also, IIRC, the v2 plugin does not have a
default directory for the v3 plugin to clash with -- you have to
explicitly tell it where to find the source v2 grammars, I think?
I think that most people will just be using one version of the plugin,
and the few wanting both can configure a non-default value. If you can
show a reasonable case for changing the default, I'll take a look
though.
ta,
dave
--
http://david.holroyd.me.uk/
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