One thing is the Lisp family of languages (common lisp, emacs lisp, interlisp, lisp used in Autocad, ...) and another thing is each of its members such as Common Lisp.
The prompt may be changed without problems. For instance in CMUCL you could use something like: _________________________________ (setq *prompt* "> ") _________________________________ in a local file $HOME/.cmucl-init, if you prefer the "> " prompt. There is no such thing as a standard lisp interpreter because: 1) There are both lisp interpreters and compilers (CMUCL is a compiler more than an interpreter). 2) There is an official specification of the language (the hyperspec which may be found very easily by searching for "lisp hyperspec" in most internet search engines). 3) All interpreters and compilers should verify all the specifications of that Hyperspec (although, of course, bugs may remain). They may have additional functionalities (graphics packages, net communications, foreign languages interface, ...). 4) In http://www.lisp.org/table/systems you may find a very complete list of Common Lisp interpreters and compilers. 5) It is a bit sad, but true. I dare say that the best available Common Lisp compilers are commercial ones (Allegro and MCL). That said, CMUCL is a good free option. The emacs common-lisp mode is only a toy which does not comply with a good deal of Common Lisp standard. --- Juan Hierro [EMAIL PROTECTED]
