Rust crates

Rust 1.95.0 · edition 2024

Larrygram is one Cargo workspace. The crates are internal for now: none is published to crates.io, so their API documentation is not on docs.rs. Build it locally with:

cargo doc --workspace --no-deps --open

Every crate forbids unsafe code and warns on missing documentation.

Libraries

Crate	Owns	Status
`larrygram-geom`	Geometry: paths, arcs, NURBS, splines, transforms, hit testing	Available
`larrygram-model`	Document model: documents, pages, shapes, masters, styles, ShapeSheet cells	Available
`larrygram-vsdx`	OPC package and XML read/write for `.vsdx`, `.vssx` and `.vstx`	Available
`larrygram-shapesheet`	ShapeSheet formula parser, evaluator and recalculation	In progress
`larrygram-text`	Text layout for shape text blocks	Available
`larrygram-render`	Scene graph, PNG and SVG rendering	Available
`larrygram-commands`	Command registry, undo and redo, selection, settings	Available
`larrygram-ui-spec`	Loader for layout, menu and shortcut data	Available
`larrygram-ui`	The egui user interface: command bar, canvas, panes	Available
`larrygram-vsd-binary`	Read-only import of binary `.vsd`, `.vss` and `.vst` (derived from libvisio, MPL-2.0)	Planned
`larrygram-control`	JSON control channel and MCP server	Planned

Applications

Crate	What it is
`larrygram`	The desktop app (eframe and egui, OpenGL through `glow`)
`larrygram-cli`	The command-line tool
`larrygram-web`	The web app (WebAssembly, built with trunk)
`xtask`	Project tasks: `gate`, `codegen`, `extract`, `parity`, `corpus`, `coverage`

Layers

The crates form layers, and a lower layer never depends on a higher one: geometry and the model at the bottom, file formats and the formula engine above them, then rendering, the command registry, and the user interface at the top. The xtask gate step layers checks this on every merge.