[antlr-interest] antlr 3.4 beta 4 (release candidate)

Mu Qiao qiaomuf at gmail.com
Mon Jul 4 01:56:36 PDT 2011


I fixed my grammar so that ANTLR doesn't spin forever on it. Then
there's a new problem:

attempting LL(1) DFA (d=419) for 632:29: ( DIGIT )?
error(10):  internal error: libbash.g : java.lang.NullPointerException
org.antlr.grammar.v3.CodeGenTreeWalker.atom(CodeGenTreeWalker.java:5250)
org.antlr.grammar.v3.CodeGenTreeWalker.element(CodeGenTreeWalker.java:3981)
org.antlr.grammar.v3.CodeGenTreeWalker.alternative(CodeGenTreeWalker.java:3753)
org.antlr.grammar.v3.CodeGenTreeWalker.block(CodeGenTreeWalker.java:3125)
org.antlr.grammar.v3.CodeGenTreeWalker.ebnf(CodeGenTreeWalker.java:4878)
org.antlr.grammar.v3.CodeGenTreeWalker.element(CodeGenTreeWalker.java:3967)
org.antlr.grammar.v3.CodeGenTreeWalker.alternative(CodeGenTreeWalker.java:3753)
org.antlr.grammar.v3.CodeGenTreeWalker.block(CodeGenTreeWalker.java:3125)
org.antlr.grammar.v3.CodeGenTreeWalker.ebnf(CodeGenTreeWalker.java:4878)
org.antlr.grammar.v3.CodeGenTreeWalker.element(CodeGenTreeWalker.java:3967)
org.antlr.grammar.v3.CodeGenTreeWalker.alternative(CodeGenTreeWalker.java:3753)
org.antlr.grammar.v3.CodeGenTreeWalker.block(CodeGenTreeWalker.java:3125)
org.antlr.grammar.v3.CodeGenTreeWalker.rule(CodeGenTreeWalker.java:2379)
org.antlr.grammar.v3.CodeGenTreeWalker.rules(CodeGenTreeWalker.java:1534)
org.antlr.grammar.v3.CodeGenTreeWalker.grammarSpec(CodeGenTreeWalker.java:1438)
org.antlr.grammar.v3.CodeGenTreeWalker.grammar_(CodeGenTreeWalker.java:506)
org.antlr.codegen.CodeGenerator.genRecognizer(CodeGenerator.java:421)
org.antlr.Tool.generateRecognizer(Tool.java:655)
org.antlr.Tool.process(Tool.java:468)
org.antlr.Tool.main(Tool.java:93)

ANTLR-3.3 doesn't have that problem. The attachment is my grammar.

On Wed, Jun 29, 2011 at 4:56 AM, Terence Parr <parrt at cs.usfca.edu> wrote:
> http://antlr.org/download
>
> a few more things fixed.
>
> Ter
>
> List: http://www.antlr.org/mailman/listinfo/antlr-interest
> Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address
>



-- 
Best wishes,
Mu Qiao
GnuPG fingerprint: 92B1 B0C4 8D14 F8C4 EFA5  3ACC 30B3 0DE4 17B1 57E9
-------------- next part --------------
A non-text attachment was scrubbed...
Name: libbash.g
Type: application/octet-stream
Size: 19450 bytes
Desc: not available
Url : http://www.antlr.org/pipermail/antlr-interest/attachments/20110704/c43cc8c3/attachment.obj 


More information about the antlr-interest mailing list