internal static bool TryParse <TUnit>(string?format, ref int pos, out QuantityFormat <TUnit> result)
where TUnit : struct, IUnit, IEquatable <TUnit>
{
if (string.IsNullOrWhiteSpace(format))
{
result = QuantityFormat <TUnit> .Default;
return(true);
}
var valueFormat = DoubleFormatCache.GetOrCreate(format, ref pos);
var symbolFormat = UnitFormatCache <TUnit> .GetOrCreate(format, ref pos, out var unit);
if (valueFormat.PostPadding is null &&
symbolFormat.PrePadding is null)
{
// we want to keep the padding specified in the format
// if both are null QuantityFormat infers padding.
valueFormat = valueFormat.WithPostPadding(string.Empty);
}
if (valueFormat.IsUnknown &&
symbolFormat.IsUnknown)
{
result = QuantityFormat <TUnit> .CreateUnknown(format, Unit <TUnit> .Default);
return(false);
}
if (valueFormat.IsUnknown)
{
if (valueFormat.Format is { } &&
private static QuantityFormat <TUnit> CreateFromValueAndSymbolFormats(ValueAndSymbolFormatKey key)
{
var valueFormat = DoubleFormatCache.GetOrCreate(key.ValueFormat);
var symbolFormat = UnitFormatCache <TUnit> .GetOrCreate(key.SymbolFormat, out TUnit unit);
return(QuantityFormat <TUnit> .Create(valueFormat, symbolFormat, unit));
}
