Vladimir Sitnikov created CALCITE-4701:
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Summary: Implement and publish Gradle plugin for extending the
parser
Key: CALCITE-4701
URL: https://issues.apache.org/jira/browse/CALCITE-4701
Project: Calcite
Issue Type: Improvement
Components: core
Affects Versions: 1.27.0
Reporter: Vladimir Sitnikov
Currently, calcite-core.jar contains the relevant parser template files,
however, the usage of the templates is not clear from the client perspective
(especially when you are new to Calcite).
It would be nice if Calcite published a plugin that simplifies building a
parser extension.
We could reuse the same plugin in calcite-babel module. Currently babel
references $rootDir/core/... directrly rather than fetching the parser
templates from core jar.
It might make sense to ship parser templates in its own jar file, however, I
have no strong opinion here. Parser.jj consumes <1% of the compressed jar
size(225K compresses to 44K), so it is not a big deal, yet having a meaningful
artifact name for the parser templates looks like the right thing to do.
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