limu 0.2.1

A diagram layout engine. It reads Mermaid and leaves the drawing to your program.
Documentation 
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//! The outlines of the icon names Mermaid's architecture diagrams know without an icon pack,
//! drawn on a 24 by 24 grid, as Pele's icons.ts has them. Any other name is left to the host.

use crate::scene::Path;

/// Pele's GLYPHS: each name with its outline as SVG path data.
pub(crate) const GLYPHS: [(&str, &str); 5] = [
    (
        "database",
        "M4 6a8 3 0 1 0 16 0a8 3 0 1 0-16 0M4 6v12a8 3 0 0 0 16 0V6M4 12a8 3 0 0 0 16 0",
    ),
    (
        "server",
        "M3 4h18v7H3zM3 13h18v7H3zM7 7.5h.01M7 16.5h.01M11 7.5h6M11 16.5h6",
    ),
    (
        "disk",
        "M5 3h14v18H5zM12 6.5a4 4 0 1 0 0 8a4 4 0 1 0 0-8M12 10.5h.01M8 18h3",
    ),
    (
        "internet",
        "M3 12a9 9 0 1 0 18 0a9 9 0 1 0-18 0M3 12h18M12 3a13 13 0 0 0 0 18M12 3a13 13 0 0 1 0 18",
    ),
    (
        "cloud",
        "M7 18a4 4 0 0 1-.5-7.97A6 6 0 0 1 18 9.5a4.25 4.25 0 0 1-.5 8.5z",
    ),
];

/// How wide Pele strokes a glyph, in units of its grid.
pub(crate) const GLYPH_STROKE: f64 = 1.5;

/// The name and the outline of an icon Pele draws itself, on its grid, as Pele's builtinIcon
/// draws it, or none for a name it does not know.
pub(crate) fn builtin_icon(name: &str) -> Option<(&'static str, Path)> {
    let &(name, d) = GLYPHS.iter().find(|(n, _)| *n == name)?;
    Some((name, Path::parse(d).expect("a glyph's path data reads")))
}