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https://issues.apache.org/jira/browse/PIG-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14019544#comment-14019544
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Kyungho Jeon commented on PIG-2597:
-----------------------------------
Sorry that I hasn't been quite active. :( I think I am confused with the above
comment by [~daijy] regarding Macro. I find a test case in the workaround
(PIG-3359). Would it be good enough for me to design based on the test case, or
is there any other cases that the test case does not cover?
> Move grunt from javacc to ANTRL
> -------------------------------
>
> Key: PIG-2597
> URL: https://issues.apache.org/jira/browse/PIG-2597
> Project: Pig
> Issue Type: Improvement
> Reporter: Jonathan Coveney
> Assignee: Daniel Dai
> Labels: gsoc2014
> Attachments: pig02.diff
>
>
> Currently, the parser for queries is in ANTLR, but Grunt is still javacc. The
> parser is very difficult to work with, and next to impossible to understand
> or modify. ANTLR provides a much cleaner, more standard way to generate
> parsers/lexers/ASTs/etc, and moving from javacc to Grunt would be huge as we
> continue to add features to Pig.
> This is a candidate project for Google summer of code 2014. More information
> about the program can be found at
> https://cwiki.apache.org/confluence/display/PIG/GSoc2014
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