ANSI Common Lisp 13 Characters 13.2 Dictionary of Characters
- Arguments and Values:
character - a character.
name - a string or nil.
Returns a string that is the name of the character,
or nil if the character has no name.
All non-graphic characters are required to have names
unless they have some implementation-defined attribute
which is not null. Whether or not other characters
have names is implementation-dependent.
The standard characters
<Newline> and <Space> have the respective names "Newline" and "Space".
The semi-standard characters
<Tab>, <Page>, <Rubout>, <Linefeed>, <Return>, and <Backspace>
(if they are supported by the implementation)
have the respective names
"Tab", "Page", "Rubout", "Linefeed", "Return", and "Backspace"
(in the indicated case, even though name lookup by "#\"
and by the function name-char is not case sensitive).
(char-name #\ ) "Space"
(char-name #\Space) "Space"
(char-name #\Page) "Page"
;; Even though its CHAR-NAME can vary, #\A prints as #\A
(prin1-to-string (read-from-string (format nil "#\\~A" (or (char-name #\A) "A"))))
- Exceptional Situations:
Should signal an error of type type-error if character is not a character.
- See Also:
Section 18.104.22.168 Printing Characters
characters having names are written by the Lisp printer
as "#\" followed by the their name; see Section 22.214.171.124 Printing Characters.
- Allegro CL Implementation Details: