Improve transform:rotate parsing to better match SVG spec (#76)

* Make transform:rotate parsing less strict

* SVGData: further improvements to rotate() match

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Co-authored-by: Josh Tynjala <joshtynjala@bowlerhat.dev>

Author: VMan-2002

format/svg/SVGData.hx

@@ -33,7 +33,7 @@ class SVGData extends Group {
 	private static var mTranslateMatch = ~/translate\((.*)[, ](.*)\)/;
 	private static var mScaleMatch = ~/scale\((.*)\)/;
 	private static var mMatrixMatch = ~/matrix\((.*?)[, ]+(.*?)[, ]+(.*?)[, ]+(.*?)[, ]+(.*?)[, ]+(.*?)\)/;
-	private static var mRotationMatch = ~/rotate\(([0-9\.]+)(\s+([0-9\.]+)\s*[, ]\s*([0-9\.]+))?\)/;
+	private static var mRotationMatch = ~/rotate\((-?[0-9\.]+)(?:\s*,)?\s*(-?[0-9\.]+)?(?:\s*,)?\s*(-?[0-9\.]+)?\)/;
 	private static var mURLMatch = ~/url\(('|"?)#(.*)\1\)/;
 	private static var mRGBMatch = ~/rgb\s*\(\s*(\d+)\s*(%)?\s*,\s*(\d+)\s*(%)?\s*,\s*(\d+)\s*(%)?\s*\)/;
 	private static var defaultFill = FillSolid(0x000000);