Overview
AST-based markdown and MDX formatter with Japanese text support
AST-based markdown and MDX formatter with Japanese text support. Powered by a Rust engine (via napi-rs) that parses markdown/MDX into an AST, then applies targeted line-based operations to the original source text.
Features
Rust-powered - Native Rust engine via napi-rs, 3-7x faster than pure JS
Hybrid formatter - Parses AST for analysis, applies edits to original source lines (no lossy round-trip)
MDX support - Full support for MDX syntax including JSX components
Japanese text formatting - Special handling for Japanese punctuation and URLs
Docusaurus support - Preserves Docusaurus admonitions (:::note, :::tip, etc.)
HTML block formatting - Proper indentation for HTML blocks (dl, table, ul, div, etc.)
GFM features - Tables, strikethrough, task lists
Frontmatter preservation - YAML frontmatter support
WASM support - Browser-compatible via
@takazudo/mdx-formatter-wasmCLI and API - Use as command-line tool or import as library
Configurable - 10 independently toggleable rules via config file or API