LayMeshRust + RaTeX architecture#
LayMesh shares one Rust implementation of .lay parsing, LCSS, resources, physical layout, plotting and formulas across native CLI, Python/Jupyter and browser WebAssembly. Node.js, npm and embedded JavaScript engines are not required.
| Component | Responsibility |
|---|---|
| laymesh-core | Restricted DSL, units, layout, plots, fonts and RaTeX formulas |
| laymesh-render | SVG; native builds enable resvg PNG and krilla PDF |
| laymesh-language | Static completion, diagnostics, hover, signatures and imports |
| laymesh-cli | validate, render, inspect and stdio LSP |
| laymesh-wasm | Browser Worker bindings for rendering and language services |
Only KaTeX formula fonts are embedded. Body fonts come from the system or user files; browsers require permission or explicit font selection. Missing glyphs warn and render as vector boxes while export continues.
A Python wheel carries one native executable and preserves the existing bridge API, Notebook magic and saved-source workflow. The website uses locked static ESM editor modules. Python builds documentation and assets; Cargo and wasm-bindgen build WebAssembly.
The VS Code client uses its supplied extension-host interfaces to start laymesh lsp --stdio. It contains no npm dependency tree and only translates protocol and editor interfaces.