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Posted to dev@pig.apache.org by "Daniel Dai (JIRA)" <ji...@apache.org> on 2014/02/21 02:56:23 UTC

[jira] [Updated] (PIG-2597) Move grunt from javacc to ANTRL

     [ https://issues.apache.org/jira/browse/PIG-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Dai updated PIG-2597:
----------------------------

    Labels: gsoc2014  (was: gsoc2013)

> 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
>              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 2013. More information about the program can be found at https://cwiki.apache.org/confluence/display/PIG/GSoc2013



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