General literal pattern elements The following ASCII characters are treated literally, i.e. no change from input to output even if they have no single quotation marks around them: " ", ":", "/", "-" Except for number patterns, these are also treated literally: ".", ",", "(", ")" Most non-ASCII characters are also treated as a literal pattern element. Note: It is recommended to use paired ASCII single quote marks around any string that should be treated literally since all other ASCII character requires it. To get an actual ASCII single quote mark in the output requires the quote mark to be doubled inside the quote in the Picture Clause.