public static UnitCollection CreateInstance(IEnumerable <IUnit> units = null)
{
if (units == null)
{
units = UnitCollection.CreateUnits();
}
return(new UnitCollection(units));
}
/// <summary>
/// Returns a collection of units that match the string.
/// For example: "Meter" returns the unit whose name is Meter.
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static IEnumerable <IUnit> GetMatchingUnits(string s)
{
var units = UnitCollection.CreateUnits();
s = s.Trim();
// check if the unit name matches exactly
var nameMatchesExactly = units.Where(p => p.ID.ToString().Equals(s, StringComparison.CurrentCultureIgnoreCase) ||
p.Name.Equals(s, StringComparison.CurrentCultureIgnoreCase) ||
p.GetPlural().Equals(s, StringComparison.CurrentCultureIgnoreCase));
if (nameMatchesExactly.Any())
{
return(nameMatchesExactly);
}
// check if the unit symbol matches exactly
var symbolMatchesExactly = units.Where(p => p.Symbol.TrimStart('°').Equals(s, StringComparison.CurrentCultureIgnoreCase));
if (symbolMatchesExactly.Any())
{
return(symbolMatchesExactly);
}
// check if there are unit names that start with the string
var namesStartWith = units.Where(p => p.Name.StartsWith(s, StringComparison.CurrentCultureIgnoreCase));
if (namesStartWith.Any())
{
return(namesStartWith);
}
return(null);
}