Alan Gates reassigned PIG-38:
Assignee: Christopher Olston
> abstract PigScript parser
> Key: PIG-38
> URL: https://issues.apache.org/jira/browse/PIG-38
> Project: Pig
> Issue Type: Improvement
> Components: grunt
> Environment: grunt and pigpen
> Reporter: Christopher Olston
> Assignee: Christopher Olston
> Fix For: 0.1.0
> Attachments: pigScriptParser.patch
> I am developing Pig Pen, an Eclipse plugin for Pig. Pig Pen needs to parse
> .pig scripts. The parsing is the same as for grunt, but the actions I take
> are different (e.g., Pig Pen will ignore "store" commands for the purpose of
> What I'd like to do is create an abstract class PigScriptParser, which is
> identical to the current GruntParser except no actions are taken. Then I'll
> add a GruntParser that extends PigScriptParser, and has concrete
> implementations of actions (e.g., what to do when a "store" command is
> I'll also add a PigPenParser that also extends PigScriptParser.
> This should not affect the behavior of GruntParser at all -- it just
> separates the parsing from the actuating.
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