Move grunt from javacc to ANTRL
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Key: PIG-2597
URL: https://issues.apache.org/jira/browse/PIG-2597
Project: Pig
Issue Type: Improvement
Reporter: Jonathan Coveney
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.
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