[ https://issues.apache.org/jira/browse/PIG-1618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thejas M Nair updated PIG-1618: ------------------------------- Attachment: NewParser-13.2.patch Made a minor change to NewParser-13.patch (see NewParser-13.2.patch), to move package org.apache.pig.newplan.visitor to src.org.apache.pig.newplan.logical.visitor . Committed patch to trunk. > Switch to new parser generator technology > ----------------------------------------- > > Key: PIG-1618 > URL: https://issues.apache.org/jira/browse/PIG-1618 > Project: Pig > Issue Type: Improvement > Affects Versions: 0.8.0 > Reporter: Alan Gates > Assignee: Xuefu Zhang > Fix For: 0.9.0 > > Attachments: antlr-3.2.jar, javadoc.patch, NewParser-1.patch, > NewParser-10.patch, NewParser-11.patch, NewParser-12.patch, > NewParser-13.2.patch, NewParser-13.patch, NewParser-2.patch, > NewParser-3.patch, NewParser-3.patch, NewParser-4.patch, NewParser-5.patch, > NewParser-6.patch, NewParser-7.patch, NewParser-8.patches, NewParser-9.patch > > > There are many bugs in Pig related to the parser, particularly to bad error > messages. After review of Java CC we feel these will be difficult to address > using that tool. Also, the .jjt files used by JavaCC are hard to understand > and maintain. > ANTLR is being reviewed as the most likely choice to move to, but other > parsers will be reviewed as well. > This JIRA will act as an umbrella issue for other parser issues. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.