![]() ![]() Out = prxchange('s///', -1, out) ĭOS, UNIX, and Mac each have their own way of encoding a line break, but in all cases, the line breaks are a combination of hex 0A (new line or line feed) and 0D (carriage return). * strip out lower ASCII (before space) */ It has low ASCII, ABC, a space, and 123 */ ![]() Here is how to remove both ASCII sets in SAS with a Perl regular expression: data ascii Say you don’t want characters before hex 20 (which is the space) and after 7E which is the tilde. For a longer explanation and a table of the characters and their hex and decimal codes, see ASCII on Wikipedia. A limitation of ASCII is it cannot represent many non-English alphabets, so UTF-8, for example, is a superset of ASCII. The hexadecimal representation of is 00 through FF. Unlike UTF-16, ASCII is a single-byte encoding, so it contains a maximum of 256 characters. The most common is ASCII which is made up of the basic Latin alphabet (as used in English), numbers, punctuation, and control characters (such as a backspace and carriage return). ASCIIĭocuments come in various encodings. The good news is they are easy to filter out or to replace. ![]() These are probably control characters that mean something to some system, but they may be useless to you. Say in your SAS data set, which comes from a text file, XML, or database, has non-ASCII characters that look like garbage-perhaps an odd square. ![]()
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