public bool?MatchesFilterText(CompletionItem item, string filterText, CompletionTriggerInfo triggerInfo, CompletionFilterReason filterReason)
{
// If the user hasn't typed anything, and this item was preselected, or was in the
// MRU list, then we definitely want to include it.
if (filterText.Length == 0)
{
if (item.Preselect || _completionService.GetMRUIndex(item) < 0)
{
return(true);
}
}
if (IsAllDigits(filterText))
{
// The user is just typing a number. We never want this to match against
// anything we would put in a completion list.
return(false);
}
var match = _patternMatcher.MatchPatternFirstOrNullable(
_completionService.GetCultureSpecificQuirks(item.FilterText),
_completionService.GetCultureSpecificQuirks(filterText));
return(match != null);
}
protected PatternMatch?GetMatch(CompletionItem item, string filterText)
{
var patternMatcher = this.GetPatternMatcher(_completionService.GetCultureSpecificQuirks(filterText), CultureInfo.CurrentCulture);
var match = patternMatcher.GetFirstMatch(_completionService.GetCultureSpecificQuirks(item.FilterText));
if (match != null)
{
return(match);
}
// Start with the culture-specific comparison, and fall back to en-US.
if (!CultureInfo.CurrentCulture.Equals(EnUSCultureInfo))
{
patternMatcher = this.GetFallbackPatternMatcher(_completionService.GetCultureSpecificQuirks(filterText));
match = patternMatcher.GetFirstMatch(_completionService.GetCultureSpecificQuirks(item.FilterText));
if (match != null)
{
return(match);
}
}
return(null);
}