IndexOfPreviousNot(String, Char, Int32) | Searches a string from right to left for the next instance of a character that is not the specified character. |
IndexOfPreviousNot(String, Char, Int32) | Searches a string from right to left for the next instance of a character that is not contained in the specified collection of characters. |
IndexOfPreviousNot(String, FuncChar, Boolean, Int32) | Searches a string from right to left for the next instance of a character that does not pass the given delegate function. |