Same input targeting Python3 seems not to terminate (in reasonable time), whereas it does when targeting Java

[gapag]

Tested on Antlr 4.5.2 & 4.5.3

The grammar/lexer files I provide are generated automatically. I attach also the file example.gf that parses correctly when using the Java target, but seems not to terminate (or at least I did not leave running enough) when using Python3 target.

I really beg your pardon for not giving a more coincise input but 1) I do not have much time as I am using antlr4 for hobby 2) I guess you will have more refined analysis tools to hunt the cause of the problem.

antlrpybug.zip

[ericvergnaud]

Hi,
thanks for this, but we also provide antlr4 as a hobby.
The antlr4 profiler is only available in Java IntelliJ.
Eric

[gapag]

I beg your pardon if I sounded rude. It was not my intention.