public bool AddSuggestion(IntellisenseData.IntellisenseData intellisenseData, string suggestion, SuggestionKind suggestionKind, SuggestionIconKind iconKind, DType type, bool requiresSuggestionEscaping, uint sortPriority = 0)
{
Contracts.AssertValue(intellisenseData);
Contracts.AssertValue(suggestion);
if (!intellisenseData.DetermineSuggestibility(suggestion, type))
{
return(false);
}
IntellisenseSuggestionList suggestions = intellisenseData.Suggestions;
IntellisenseSuggestionList substringSuggestions = intellisenseData.SubstringSuggestions;
int matchingLength = intellisenseData.MatchingLength;
string matchingStr = intellisenseData.MatchingStr;
string boundTo = intellisenseData.BoundTo;
var valueToSuggest = requiresSuggestionEscaping ? TexlLexer.EscapeName(suggestion) : suggestion;
int highlightStart = suggestion.IndexOf(matchingStr, StringComparison.OrdinalIgnoreCase);
// If the suggestion has special characters we need to find the highlightStart index by escaping the matching string as well.
// Because, the suggestion could be something like 'Ident with Space' and the user might have typed Ident. In this case,
// we want to highlight only Ident while displaying 'Ident with Space'.
if (requiresSuggestionEscaping && !string.IsNullOrEmpty(matchingStr) && valueToSuggest != suggestion && highlightStart == 0)
{
highlightStart++;
}
else
{
matchingLength--;
}
int highlightEnd = highlightStart + matchingStr.Length;
if (IntellisenseHelper.IsMatch(suggestion, matchingStr))
{
// In special circumstance where the user escapes an identifier where they don't have to, the matching length will
// include the starting delimiter that user provided, where as the suggestion would not include any delimiters.
// Hence we have to count for that fact.
if (matchingLength > 0 & matchingLength > matchingStr.Length)
{
highlightEnd = matchingLength > valueToSuggest.Length ? valueToSuggest.Length : matchingLength;
}
UIString UIsuggestion = ConstructUIString(suggestionKind, type, suggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(suggestions, candidate));
}
if (highlightStart > -1)
{
UIString UIsuggestion = ConstructUIString(suggestionKind, type, substringSuggestions, valueToSuggest, highlightStart, highlightEnd);
IntellisenseSuggestion candidate = new IntellisenseSuggestion(UIsuggestion,
suggestionKind,
iconKind,
type,
boundTo,
-1,
string.Empty,
null,
sortPriority);
return(CheckAndAddSuggestion(substringSuggestions, candidate));
}
return(false);
}