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Rantlr

Rantlr

Roberto de Souza Filho

|
1 install
| (0) | Free
Neon diagnostics & codegen for Rantlr .gr grammars — Smart Fix, syntax highlighting, Generate Parser.
Installation
Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter.
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More Info

Rantlr: Modern Parser Generator

⚡ The Future of Language Recognition

Tired of heavy JVM dependencies and messy code? Rantlr is a lightning-fast, Rust-powered alternative to ANTLR4, designed for modern developers.

🌟 Key Features

  • Neon Smart Fix: Real-time diagnostics with one-click suggestions to fix grammar errors.
  • Zero-Runtime Philosophy: Generated code in TS, Python, Go, Java, Ruby, and Erlang is clean, idiomatic, and dependency-free.
  • Visual Rule Map: See your grammar connections in a beautiful glowing graph (Open Rantlr Playground).

🚀 Quick Start

  1. Create a .gr file.
  2. Define your rule and token.
  3. Save to see real-time Neon Diagnostics.
  4. Use the Command Palette (Ctrl+Shift+P) → Rantlr: Generate Parser.

🛠 Supported Targets

TypeScript · Python · Go · Java · Ruby (Rails) · Erlang

Settings

Setting Default Meaning
rantlr.cliPath "" Path to rantlr binary (cargo install rantlr)
rantlr.diagnoseOnSave true Run diagnose on save
rantlr.diagnoseOnType false Debounced diagnose while typing

Install the CLI: cargo install rantlr


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