parse method
Implementation
@override
Decimal? parse(String? value) {
Decimal decimal = Decimal(precision: precision);
if (value == null || value.isEmpty) {
return decimal;
}
List<String> parts = _internalStrip(value).split('').toList(growable: true);
for (int pos = parts.length; pos <= precision; pos++) {
parts.insert(0, '0');
}
if (precision > 0) {
parts.insert(parts.length - precision, '.');
}
decimal.doubleValue = double.parse(parts.join());
return decimal;
}