Subject: Re: Simple characters in the CL Standard From: Erik Naggum <firstname.lastname@example.org> Date: 1998/04/11 Newsgroups: comp.lang.lisp Message-ID: <email@example.com> * Paul Dietz | I don't think so, at least not portably. A simple character is defined | to be a character with no attributes except the character code. I don't | see where it says in the standard that a base character has to be simple, | or that simple characters have to be base characters. A simple character | in a string must be a base character, though. I couldn't find such a requirement myself, but STANDARD-CHAR _is_ defined to be a simple character ("any character that is not simple is not a standard character"), although this excludes most control characters and any 8-bit characters you may have. however, no Lisp I have found have answered true to (typep #3\a 'base-char) or (typep #\M-a 'base-char), although the reason is that Allegro CL answers NIL, CMUCL 17f doesn't support bits or fonts to begin with, and CLISP doesn't support BASE-CHAR. however, I might think the question is moot, now that the minor confusion over "^@" has been resolved. #:Erik -- religious cult update in light of new scientific discoveries: "when we cannot go to the comet, the comet must come to us."