public override string ToString()
{
if (Type != UnitType.None)
{
return(Value + UnitTypeHelper.GetSymbol(Type));
}
return(Value.ToString());
}
// 50%
// 50m
// 50 m
public static Unit Parse(string text)
{
if (text is null)
{
throw new ArgumentNullException(nameof(text));
}
if (text == "_")
{
return(None);
}
int unitIndex = 0;
foreach (var c in text)
{
if (unitIndex == 0 && c == '-')
{
unitIndex++;
}
else if (char.IsDigit(c) || c == '.')
{
unitIndex++;
}
else
{
break;
}
}
if (unitIndex == text.Length)
{
return(new Unit(double.Parse(text), UnitType.None));
}
else
{
string number = text.Substring(0, unitIndex);
// skip optional space
if (text[unitIndex] == ' ')
{
unitIndex++;
}
UnitType unitType = UnitTypeHelper.Parse(text.Substring(unitIndex));
return(new Unit(double.Parse(number), unitType));
}
}