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| ANSI Common Lisp 16 Strings 16.2 Dictionary of Strings
16.2.6 char, schar | Accessor
  Syntax:
  char string index | character
  schar string index | character
  (setf (char string index) new-character) (setf (schar string index) new-character) Arguments and Values: string - for char, a string; for schar, a simple string. index - a valid array index for the string. character, new-character - a character. Description: char and schar access the element of string specified by index. char ignores fill pointers when accessing elements. Examples:
       (setq my-simple-string (make-string 6 :initial-element #\A))  "AAAAAA"
       (schar my-simple-string 4)  #\A
       (setf (schar my-simple-string 4) #\B)  #\B
       my-simple-string  "AAAABA"
       (setq my-filled-string
             (make-array 6 :element-type 'character
                           :fill-pointer 5
                           :initial-contents my-simple-string))
       "AAAAB"
       (char my-filled-string 4)  #\B
       (char my-filled-string 5)  #\A
       (setf (char my-filled-string 3) #\C)  #\C
       (setf (char my-filled-string 5) #\D)  #\D
       (setf (fill-pointer my-filled-string) 6)  6
       my-filled-string  "AAACBD"
  See Also: aref, elt, Section 3.2.1 Compiler Terminology Notes:
       (char s j) ==(aref (the string s) j)
Allegro CL Implementation Details: None.

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