Antlr Parse tree view on windows

Question

I am trying to view antlr4 parse tree on Windows. I followed the instructions on https://www.antlr.org/ I setup the antlr4 path and grun path also added the CLASSPATH. The grun command with "-tree" works but when I specify "-gui" it freezes in the cmd.

ScreenShot

I tried fixing that error message by following instruction on Java could not open/create prefs error and it went away but I still can't see the parse tree.

Use the right tools for the job: Visual Studio Code and this ANTLR4 extension: https://marketplace.visualstudio.com/items?itemName=mike-lischke.vscode-antlr4 — Mike Lischke, Mar 13 '20 at 07:57
Complete guess - can you start the command window using Run as administrator and retry? Looks like the s/w is trying to set som prefs in registry and failing at that. — v0rl0n, Mar 19 '20 at 15:25

score 1 · Answer 1 · answered Mar 13 '20 at 22:33

1

I don't have this problem on Windows 10. I am using Java SE 13 and ANTLR 4.8. I followed the section "Generate and compile the parser" on this blog to set up properly on Windows 10. The blog uses Git Bash and Windows 10.

answered Mar 13 '20 at 22:33

Song Yang

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Antlr Parse tree view on windows

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