Custom Query (1030 matches)

$ clall -r '(read-from-string "+.e2")'

International Allegro CL Free Express Edition --> +.E2, 4
Clozure Common Lisp            --> 0.0, 4
CLISP                          --> |+.E2|, 4
CMU Common Lisp                --> |+.E2|, 4
ECL                            --> 0.0, 4
SBCL                           --> |+.E2|, 4


CLHS is clear about it "2.3.1 Numbers as Tokens", the syntax for
floating point numbers is:

    float          ::=  [sign]
                       {decimal-digit}*
                       decimal-point
                       {decimal-digit}+
                       [exponent]  
                        | 
                       [sign]
                       {decimal-digit}+
                       [decimal-point
                           {decimal-digit}*]
                       exponent    
    exponent       ::=  exponent-marker
                       [sign]
                       {digit}+    

that is, at least one decimal digit is required before or after the dot.

With no digit, the token +.e2 should be read as a symbol.

#'documentation doesn't work for slot-definitions, e.g. (documentation slotd t).

ANSI doesn't require this functionality but it's easy to suppport.

The toplevel :cd command differs from typical system shell usage in that quotes are required around the directory name. This can create quite a lot of stumbling for a new user, making the command seem broken. This could be alleviated by changing the :? HELP entry for the cd command to:

(:CD DIR) Change to directory DIR. Quotes are required, i.e. (:cd "..")