ParseSVGPath parses an SVG path data string (d attribute) into a Path.

It supports all SVG path commands: M/m, L/l, H/h, V/v, C/c, S/s, Q/q, T/t, A/a, Z/z.

Uppercase commands use absolute coordinates; lowercase use relative coordinates

(offsets from the current point).

 

The parser follows the SVG 1.1 specification for path data grammar, including:

- Comma and whitespace separation between numbers

- Implicit repeat of commands when extra coordinate pairs are provided

- Implicit LineTo after MoveTo with extra coordinate pairs

- Negative sign as number separator (e.g., "10-20" means "10, -20")

- Scientific notation in numbers (e.g., "1e-5")

- Flag values (0 or 1) in arc commands without separators

 

Reference: https://www.w3.org/TR/SVG11/paths.html#PathData

func ParseSVGPath(d string) (*Path, error) {
	p := &svgParser{
		input:	d,
		path:	NewPath(),
	}
	if err := p.parse(); err != nil {
		return nil, err
	}
	return p.path, nil
}