public IEnumerator <string> GetAlternatives(string partialName)
{
// first test, if we find the name directly
IEnumerator <string> testIt = SubsetCollection <string> .Tail(nameSet, partialName).GetEnumerator();
string testMatch = (testIt.MoveNext()) ? (string)testIt.Current : null;
if (testMatch == null || !testMatch.StartsWith(partialName))
{
string canonical = partialName.ToLower();
testIt = SubsetDictionary <string, string> .Tail(canonicalNames, canonical).Keys.GetEnumerator();
testMatch = (testIt.MoveNext()) ? (string)testIt.Current : null;
if (testMatch == null || !testMatch.StartsWith(canonical))
{
return(null); // nope.
}
string foundName = (string)canonicalNames[testMatch];
partialName = foundName.Substring(0, partialName.Length);
}
return(new NameEnumerator(this, partialName));
}
public ICollection <string> GetRegisteredCommandNames(string key)
{
// return commandMap.TailDictionary(key).Keys;
return(SubsetDictionary <string, Command> .Tail(commandMap, key).Keys);
}