TreeSiter

An incremental parsing library and parser generator designed to build and rapidly update syntax trees on every keystroke.

Tree-sitter is an incremental parsing system built to power modern programming tools and text editors like Neovim and GitHub (1.1.1, 1.1.8). Written in pure, dependency-free C11, the runtime library embeds into any application to parse source code in real time (1.1.3). It generates a concrete syntax tree and updates it instantly as a user types, handling syntax errors gracefully without breaking the parser (1.1.3). With official bindings for languages like Rust, Go, and Python, Tree-sitter replaces fragile regex-based systems with robust, syntax-aware code analysis (1.1.1, 1.1.3).

https://tree-sitter.github.io/tree-sitter/