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); }