public IntellisenseSuggest CycleValue(TextInputState input, bool backward, string language)
{
string query = input.Text;
int caret = input.Caret;
var token = new MtgTolerantTokenizer(query).GetEditedToken(caret);
if (token == null || token.Type.IsAny(TokenType.ModifierValue))
{
return(null);
}
string userField = token.ParentField ?? string.Empty;
bool isFieldInvalid = !Adapter.IsAnyField(userField) && !Adapter.IsUserField(userField);
if (isFieldInvalid)
{
return(null);
}
string currentValue;
if (!Adapter.IsSuggestAnalyzedIn(userField, language))
{
token = token.PhraseStart ?? token;
currentValue = StringEscaper.Unescape(token.GetPhraseText(query));
}
else
{
currentValue = StringEscaper.Unescape(token.Value);
}
var snapshot = State;
var allValues = snapshot.GetValuesCache(userField, language);
if (allValues.Count == 0)
{
return(null);
}
var currentIndex =
allValues.BinarySearchLastIndexOf(str => Str.Comparer.Compare(str, currentValue) <= 0);
int increment = backward ? -1 : 1;
var nextIndex = currentIndex + increment;
if (nextIndex == allValues.Count)
{
nextIndex = 0;
}
else if (nextIndex == -1)
{
nextIndex = allValues.Count - 1;
}
var nextValue = allValues[nextIndex];
return(new IntellisenseSuggest(token, ReadOnlyList.From(nextValue), _allTokensAreValues));
}
public IntellisenseSuggest Suggest(string language, TextInputState input)
{
string query = input.Text;
int caret = input.Caret;
var token = new MtgTolerantTokenizer(query).GetEditedToken(caret);
if (token == null || token.Type.IsAny(TokenType.ModifierValue))
{
return(LuceneSpellcheckerConstants.EmptySuggest);
}
string userField = token.ParentField ?? string.Empty;
bool isFieldInvalid = !_adapter.IsAnyField(userField) && !_adapter.IsUserField(userField);
if (!_adapter.IsSuggestAnalyzedIn(userField, language))
{
token = token.PhraseStart ?? token;
}
string valuePart =
StringEscaper.Unescape(query.Substring(token.Position, caret - token.Position));
if (token.Type.IsAny(TokenType.FieldValue | TokenType.Wildcard))
{
IReadOnlyList <string> valueSuggest;
if (isFieldInvalid || string.IsNullOrEmpty(userField) && string.IsNullOrEmpty(valuePart))
{
valueSuggest = ReadOnlyList.Empty <string>();
}
else if (_adapter.IsAnyField(userField))
{
valueSuggest = suggestAllFieldValues(valuePart, language);
}
else
{
valueSuggest = suggestValues(userField, language, valuePart);
}
if (!string.IsNullOrEmpty(userField))
{
return(new IntellisenseSuggest(token, valueSuggest, _allTokensAreValues));
}
var fieldSuggest = suggestFields(fieldPart: valuePart);
var values = fieldSuggest.Concat(valueSuggest).ToReadOnlyList();
var types = fieldSuggest.Select(_ => TokenType.Field)
.Concat(valueSuggest.Select(_ => TokenType.FieldValue))
.ToReadOnlyList();
return(new IntellisenseSuggest(token, values, types));
}
if (token.Type.IsAny(TokenType.Field))
{
return(new IntellisenseSuggest(token, suggestFields(fieldPart: valuePart), _allTokensAreField));
}
if (token.Type.IsAny(TokenType.Boolean))
{
return(new IntellisenseSuggest(token, LuceneSpellcheckerConstants.BooleanOperators, LuceneSpellcheckerConstants.AllTokensAreBoolean));
}
return(LuceneSpellcheckerConstants.EmptySuggest);
}