internal void StartSpelling(int index)
{
var context = new List <int> {
0
};
if (_wordVocabularySource.Count != index)
{
var afterWordSuffixed = _wordVocabularySource.GetIndexWord(index);
var afterWord = RemoveAnySuffix(afterWordSuffixed);
if (afterWord != string.Empty)
{
string beforeWord;
var beforeIndex = index - 1;
do
{
if (0 <= beforeIndex)
{
var beforeWordSuffixed = _wordVocabularySource.GetIndexWord(beforeIndex);
beforeWord = RemoveAnySuffix(beforeWordSuffixed);
beforeIndex--;
}
else
{
beforeWord = string.Empty;
}
}while (beforeWord == afterWord);
var maxLength = Math.Min(beforeWord.Length, afterWord.Length);
for (var i = 0; i < maxLength && beforeWord[i] == afterWord[i]; i++)
{
context.Add(beforeWord[i]);
}
}
}
SetContext(context);
SetSuggestionsView();
}
