ANSI Common Lisp 22 Printer 22.1 The Lisp Printer 22.1.3 Default Print-Object Methods
220.127.116.11 Printing Strings
The characters of the string are output in order.
If printer escaping is enabled,
a double-quote is output before and after, and all
double-quotes and single escapes are preceded by backslash.
The printing of strings is not affected by *print-array*.
Only the active elements of the string are printed.
For information on how the Lisp reader parses strings,
see Section 2.4.5 Double-Quote.