2.1.4.6.1 Examples of Single Escape Characters

 ;; The following examples assume the readtable case of *readtable* 
 ;; and *print-case* are both :upcase.
 (eq 'abc '\A\B\C) =>  true
 (eq 'abc 'a\Bc) =>  true
 (eq 'abc '\ABC) =>  true
 (eq 'abc '\abc) =>  false