antlr4
https://github.com/antlr/antlr4
Java
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
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- Issues
- Reports strange error when combining grammars named X.g4 and XLexer.g4
- Allow converting a ParseTree to an AST
- Reference to Parser from ParseTree
- Report error spans to error listeners
- Parsing with C++ target 5x slower than Java
- Classic gotcha of mismatched input 'xyz' expecting 'xyz'
- do we need parse tree modification routines?
- for target authors: factor out the creation of error nodes and terminal nodes in the parser
- How can I disable or format the "Generated from" comment in antlr
- initial pass at a tree rewriter mechanism based up on existing visitors.
- Docs
- Java not yet supported