This crate provides a procedural macro that renders ASCII diagrams in doc comments as SVG images using svgbob.

Requires Rust version 1.73 or later or equivalent nightly builds.

Add the following line to Cargo.toml.

[dependencies]
svgbobdoc = { version = "0.2", features = ["enable"] }

Wrap doc comments with #[doc = transform!(...)]. Use svgbob code blocks to write ASCII diagrams.

#[doc = svgbobdoc::transform!(
/// Some structure.
///
/// ```svgbob
///  .--------------------.
///  | Diagrams here      |
///  `--------------------'
/// ```
)]
pub struct TestStruct {}

See the example directory for a complete example.

• Using this macro increases the compilation time. The enable Cargo feature can be used to turn off the transformation and the compilation of most dependent packages.

• A link reference definition ([label]: data:...) can be generated by providing a link label in a code fence header as in ~~~svgbob,[label].

License: MIT/Apache-2.0