internal static char?GetForcedSingleCharacter(bool forceSingleLetter, IGenerateRandomIndex generator)
{
if (!forceSingleLetter)
{
return(null);
}
else
{
string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
return(chars[generator.Get(chars.Length - 1)]);
}
}
internal static string GetToken(List <string> collection, IGenerateRandomIndex generator, char?forcedSingleLetter)
{
if (!collection.Any())
{
return("");
}
if (forcedSingleLetter == null)
{
return(collection[generator.Get(collection.Count)]);
}
else
{
var subset = collection.Where(x => x.StartsWith(forcedSingleLetter.ToString(), StringComparison.OrdinalIgnoreCase)).ToList();
if (subset.Count == 0)
{
return(collection[generator.Get(collection.Count)]);
}
return(subset[generator.Get(subset.Count - 1)]);
}
}
