public static bool TryParse(string input, out ValueUnit output)
{
Match m = parsingRegex.Match(input);
if (m.Success)
{
string value = m.Groups[1].Value;
string unit = m.Groups[3].Value;
// Set culture info depending on format of value to be parsed (e.g. 1.0 or 1,0)
if (value.Contains(","))
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");
}
else
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("en-EN");
}
if (double.TryParse(value, out double parsedValue))
{
output = new ValueUnit(parsedValue, Unit.GetUnitByAbbreviation(unit) ?? Unit.GetUnitByName(unit));
if (output == null || output.Unit == null)
{
output = null;
return(false);
}
return(true);
}
}
output = null;
return(false);
}
public static double?Convert(ValueUnit from, Unit to)
{
if (from.Unit.Convertable(to, out double factor))
{
return(from.Value * factor);
}
else
{
return(null);
}
}
public static ValueUnit Add(ValueUnit a, ValueUnit b)
{
// Check which unit is bigger (e.g. kg is bigger than g) to determine which unit the output is in
if (a.Unit.Index > b.Unit.Index && Convertable(b.Unit, a.Unit))
{
return(new ValueUnit(a.Value + Convert(b, a.Unit).Value, a.Unit));
}
else if (a.Unit.Index <= b.Unit.Index && Convertable(a.Unit, b.Unit))
{
return(new ValueUnit(b.Value + Convert(a, b.Unit).Value, b.Unit));
}
return(null);
}