Characters

CMU Common Lisp implements characters according to Common Lisp: the Language II. The main difference from the first version is that character bits and font have been eliminated, and the names of the types have been changed. base-character is the new equivalent of the old string-char. In this implementation, all characters are base characters (there are no extended characters.) Character codes range between 0 and 255, using the ASCII encoding.

Table 2.1 tbl:chars shows characters recognized by CMU Common Lisp.

Table 2.1: Characters recognized by CMU Common Lisp

ASCII		Lisp
Name	Code	Name	Alternatives
nul	0	# $\backslash$ NULL	# $\backslash$ NUL
bel	7	# $\backslash$ BELL
bs	8	# $\backslash$ BACKSPACE	# $\backslash$ BS
tab	9	# $\backslash$ TAB
lf	10	# $\backslash$ NEWLINE	# $\backslash$ NL	# $\backslash$ LINEFEED	# $\backslash$ LF
ff	11	# $\backslash$ VT	# $\backslash$ PAGE	# $\backslash$ FORM
cr	13	# $\backslash$ RETURN	# $\backslash$ CR
esc	27	# $\backslash$ ESCAPE	# $\backslash$ ESC	# $\backslash$ ALTMODE	# $\backslash$ ALT
sp	32	# $\backslash$ SPACE	# $\backslash$ SP
del	127	# $\backslash$ DELETE	# $\backslash$ RUBOUT