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Posted to dev@lucene.apache.org by "Jack Conradson (JIRA)" <ji...@apache.org> on 2015/08/03 18:14:05 UTC
[jira] [Comment Edited] (LUCENE-6417) Upgrade ANTLR to version 4.5
[ https://issues.apache.org/jira/browse/LUCENE-6417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14652029#comment-14652029 ]
Jack Conradson edited comment on LUCENE-6417 at 8/3/15 4:13 PM:
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Sorry, Mike and Uwe, for the delayed response. I was actually on vacation the previous week. I'll fix the pre-commit and make the suggested changes. The ASM did not change at all (other than by mistake :) ), I was just forced to re-organize the ASM generation code into smaller chunks for the Antlr 4.5 visitor. Thanks for reviewing the patch!
was (Author: jdconradson):
Sorry, Mike and Uwe, for the delayed response. I was actually on vacation the previous week. I'll fix the pre-commit and make the suggested changes. The ASM did not change at all (other than by mistake :) ), I was just forced to re-organize the ASM generation code into smaller chunks for the Antler 4.5 visitor. Thanks for reviewing the patch!
> Upgrade ANTLR to version 4.5
> ----------------------------
>
> Key: LUCENE-6417
> URL: https://issues.apache.org/jira/browse/LUCENE-6417
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Jack Conradson
> Attachments: LUCENE-6471.patch
>
>
> I would like to upgrade ANTLR from 3.5 to 4.5. This version adds several features that will improve the existing grammars. The main improvement would be the allowance of left-hand recursion in grammar rules which will reduce the number of rules significantly for expressions.
> This change will require some code refactoring to the existing expressions work.
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