public static Qualifier ToCommonRoot(this Qualifier qualifier, Qualifier other, StringComparison comparison = StringComparison.Ordinal)
{
var fragmentLength = FindCommonFragmentLength(qualifier, other, comparison);
switch (fragmentLength)
{
case int.MinValue:
return(new Qualifier());
default:
return(qualifier.ToTrimmedNamed(0, fragmentLength));
}
}
/// <summary>
/// Extracts a sub qualifier relative to given super qualifier given the current qualifier.
/// </summary>
/// <param name="qualifier">The given qualifier</param>
/// <param name="supQualifier">The super qualifier</param>
/// <param name="comparison">Comparision method</param>
/// <returns>A sub qualifier relative to super qualifier</returns>
public static Qualifier ToSubQualifierOf(this Qualifier qualifier, Qualifier supQualifier, StringComparison comparison = StringComparison.Ordinal)
{
var fragmentLength = FindCommonFragmentLength(supQualifier, qualifier, comparison);
switch (fragmentLength)
{
case int.MaxValue:
return(new Qualifier());
default:
if (fragmentLength == supQualifier.Named.Frags.Count)
{
// Only if super qualifier is completely covered by sub qualifier
return(qualifier.ToTrimmedNamed(supQualifier.Named.Frags.Count));
}
else
{
return(new Qualifier());
}
}
}