[GRADLE-2480] Antlr plugin doesn't work Created: 16/Sep/12  Updated: 10/Feb/17  Resolved: 10/Feb/17

Status: Resolved
Project: Gradle
Affects Version/s: 1.2
Fix Version/s: None

Type: Bug
Reporter: Diwaker Gupta Assignee: Unassigned
Resolution: Won't Fix Votes: 0


I'm using the SimpleCalc example from http://www.antlr.org/wiki/display/ANTLR3/Five+minute+introduction+to+ANTLR+3. I copied the grammar into src/main/antlr/SimpleCalc.g

Here's my build.gradle:

apply plugin: 'antlr'
apply plugin: 'java'

repositories {

When I try to build, gradle complains:

bug/src/main/antlr/SimpleCalc.g:1:1: unexpected token: grammar
error: Token stream error reading grammar(s):
bug/src/main/antlr/SimpleCalc.g:10:1: unexpected char: '@'

The same grammar compiles just fine using the org.antlr.Tool directly from the antlr jar files.

I've now tried the antlr plugin on various grammars, from the most trivial to modestly complex and it consistently fails for every single one. I also tried specifying the latest antlr version thus:

dependencies {
    antlr 'org.antlr:antlr:3.4'

Unfortunately, this doesn't change the behavior either.

Comment by Diwaker Gupta [ 16/Sep/12 ]

I guess the underlying problem is support for antlr v3, which is a known issue. Feel free to mark as duplicate or link to a more appropriate issue; at this point, lack of antlrv3 is a blocker for me.

Comment by Benjamin Muschko [ 15/Nov/16 ]

As announced on the Gradle blog we are planning to completely migrate issues from JIRA to GitHub.

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We look forward to collaborating with you more closely on GitHub. Thank you for your contribution to Gradle!

Comment by Benjamin Muschko [ 10/Feb/17 ]

Thanks again for reporting this issue. We haven't heard back from you after our inquiry from November 15th. We are closing this issue now. Please create an issue on GitHub if you still feel passionate about getting it resolved.

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