public WordCorrectness IsCorrect(string word)
{
// First check the case-sensitive dictionary.
bool isCaseSensitiveCorrect = CaseSensitiveDictionary.Contains(word);
if (isCaseSensitiveCorrect)
{
return(WordCorrectness.Correct);
}
// Check the case-insensitive version by making it lowercase and trying
// again.
word = word.ToLowerInvariant();
bool isCaseInsensitiveCorrect = CaseInsensitiveDictionary.Contains(word);
// The return value is either correct or indeterminate since this
// plugin is intended to be a supplemental spell-checking instead of
// a conclusive one.
return(isCaseInsensitiveCorrect
? WordCorrectness.Correct
: WordCorrectness.Indeterminate);
}