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  Argument
 
    number    Integer expression in the range 0..255, representing
              ASCII code
 
  Returns
 
    Char      ASCII character associated with a number
 
  Description
 
    The Chr function returns the ASCII character associated with a
    number. Chr accepts an integer expression of any type and returns
    the character with ASCII value equal to the expression value.
 
    The Ord function acts as the inverse of Chr, returning the ASCII
    code for a given character.
 
    Use Chr to perform the inverse of the UpCase function. Chr returns
    a lowercase letter when 32 is added to the ASCII code for the
    uppercase form of the letter. For example, to return the lowercase
    version of an uppercase letter stored in character variable ch:
 
       result := Chr( Ord( ch ) + 32 );
 
    Use Chr to represent characters that cannot be expressed literally.
    For example, to produce the character for the bell sound:
 
       Write( Chr( 7 ) );
 
    Use Chr to change the length of a Pascal string. The ordinal value
    of the character at index zero in a Pascal string stands for the
    string length. For example, to shorten a string variable s by one
    character:
 
       s[0] := Chr( Length( s ) - 1 );
 
    To change string length regardless of the type of string, use
    the Delete procedure.