lini 0.22.0

Pretty diagrams, charts, and technical drawings from plain text, with fine-grained control. Compiles to clean, themeable SVG.
Documentation 
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// Expressions & functions (SPEC §10.7): a (…) group is compile-time math, `=` binds
// a reusable value or function (read in any expression), and a parametric `points:`
// draws a curve. Everything folds to literals at compile time.
{
  gap: 20; padding: 24;
  base = 90;
  // a variable — a reusable value, read bare in any expression
  scale(n) = (base * 1.2 ^ n);
  // a reusable size, in terms of the variable
  wave(a, f) = (u * 320, a * sin(2 * pi * f * u));
  // a parametric point
}

|box#a| "scale(0)" {
  width: scale(0); height: 40; fill: --teal-wash; stroke: --teal-ink;
}
|box#b| "scale(3)" {
  width: scale(3); height: 40; fill: --teal-wash; stroke: --teal-ink;
}
|box#pad| "padding 8*2" {
  padding: (8 * 2); fill: --amber-wash; stroke: --amber-ink;
}

// A sine wave from a (…) expression, and the same curve named via wave().
|line#sine| {
  points: (u * 320, 24 * sin(2 * pi * 3 * u)); samples: 64; stroke: --sky-deep; stroke-width: 2;
}
|line#named| {
  points: wave(18, 2); samples: 64; stroke: --rose-deep; stroke-width: 2;
}