antlr4

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Closes #3876

Gashmob

ANTLR makes right-assoc instead of N-ary operation

3

The following grammar: ``` logic : NOT logic | logic ( AND logic )+ | logic ( OR logic )+ | expr | L_PAREN logic R_PAREN ; ``` produces a...

leo-from-spb

[Go] Make SetTokenSource public

4

This aligns the golang runtime with other languages where the SetTokenSource is publicly available. We require this in our usage of antlr4. We currently have a fork for the sole...

fsaintjacques

[tool] Antlr tool enters an epsilon action transition with direct left recursion removal.

13

I've been analyzing https://github.com/antlr/grammars-v4/issues/4465. Apparently, the Antlr tool is inserting an epsilon transition with non-existent action *arbitrarily for the first alt* of a rule that has direct left recursion. This...

kaby76

```bash > mkdir -p a_dir/build > cd a_dir > cat > A.g4 java -classpath /usr/share/java/antlr4/antlr4.jar:/usr/share/java/antlr3-runtime.jar:/usr/share/java/antlr4/antlr4-runtime.jar:/usr/share/java/stringtemplate4/ST4.jar:/usr/share/java/treelayout/org.abego.treelayout.core.jar org.antlr.v4.Tool -o here ../A.g4 context [/report CANNOT_WRITE_FILE] 1:19 attribute arg isn't defined error(1): cannot write...

jirislaby

This commit optimizes the performance of the GetTextFromInterval method when a single SQL text is too large

daLingZhong

Go Target: Memory usage is very high when parsing

9

I wrote a grammar file, and when parsing a file of around 20MB, it temporarily consumes over 2GB of memory. The memory usage returns to normal after parsing is complete....

whl5627445

ericvergnaud

[PHP] fix: make generate abstract classes actually abstract

1

Expanding #4450 to include visitor too. Closes #4737.

dkarlovi

Found a typo while learning the internals of ANTLR.

pjanck