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601: Sidetrip

Occasionally, you need to denote various special characters. You denote the space character, straightforwardly, as ' '. You denote other characters by using a combination of a backslash, \, and a code. In such combinations, the backslash is said to be the escape character:

\t tab
\r carriage return
\n line feed
\f form feed
\b backspace
\" double quote
\' single quote
\\ backslash

The backslash itself appears in the table because you need a way to denote the backslash when you really want a backslash, rather than the escape character.