Merge pull request #1119 from TheOneAmir/master

Feature Request: Search by abbreviated qualified name #1090

ILSpy/SearchStrategies.cs

@@ -113,6 +113,10 @@ namespace ICSharpCode.ILSpy
 								return false;
 						}
 						break;
+					case '~':
+						if (term.Length > 1 && !IsNoncontiguousMatch(text.ToLower(), term.Substring(1).ToLower()))
+							return false;
+						break;
 					default:
 						if (text.IndexOf(term, StringComparison.OrdinalIgnoreCase) < 0)
 							return false;
@@ -122,6 +126,33 @@ namespace ICSharpCode.ILSpy
 			return true;
 		}
 
+		bool IsNoncontiguousMatch(string text, string searchTerm)
+		{
+			if (string.IsNullOrEmpty(text) || string.IsNullOrEmpty(searchTerm)) {
+				return false;
+			}
+			var textLength = text.Length;
+			if (searchTerm.Length > textLength) {
+				return false;
+			}
+			var i = 0;
+			for (int searchIndex = 0; searchIndex < searchTerm.Length;) {
+				while (i != textLength) {
+					if (text[i] == searchTerm[searchIndex]) {
+						// Check if all characters in searchTerm have been matched
+						if (searchTerm.Length == ++searchIndex)
+							return true;
+						i++;
+						break;
+					}
+					i++;
+				}
+				if (i == textLength)
+					return false;
+			}
+			return false;
+		}
+
 		string GetLanguageSpecificName(Language language, IMemberDefinition member, bool fullName = false)
 		{
 			switch (member) {