parse static method

RayOklch parse(String value)

Parses a color string and returns a RayOklch.

Supports the following format:

• CSS oklch: oklch(0.6 0.2 300), oklch(0.6 0.2 300 / 0.8)

L (lightness) is 0-1, C (chroma) is 0+, H (hue) is 0-360 degrees, and alpha/opacity is 0-1.

Throws ArgumentError if the string format is not recognized.

Implementation

static RayOklch parse(String value) {
  final trimmed = value.trim();

  // oklch format: oklch(0.6 0.2 300) or oklch(0.6 0.2 300 / 0.8)
  final oklchPattern = RegExp(
    r'^oklch\s*\(\s*(-?\d+(?:\.\d+)?)\s+(-?\d+(?:\.\d+)?)\s+(-?\d+(?:\.\d+)?)\s*(?:/\s*(\d+(?:\.\d+)?))?\s*\)$',
    caseSensitive: false,
  );

  final match = oklchPattern.firstMatch(trimmed);

  if (match != null) {
    final l = double.parse(match.group(1)!);
    final c = double.parse(match.group(2)!);
    final h = double.parse(match.group(3)!);
    final alphaStr = match.group(4);

    final opacity = alphaStr != null ? double.parse(alphaStr) : 1.0;

    return RayOklch.fromComponents(l, c, h, opacity);
  }

  throw ArgumentError('Invalid Oklch color format: $value');
}