TParsedQuadraticCurveShortcutCommand
TParsedQuadraticCurveShortcutCommand:
TParsedAbsoluteQuadraticCurveShortcutCommand|TParsedRelativeQuadraticCurveShortcutCommand
TParsedQuadraticCurveShortcutCommand:
TParsedAbsoluteQuadraticCurveShortcutCommand|TParsedRelativeQuadraticCurveShortcutCommand