4 ms·

Which lisp?

by j-pb 11y ago

Which lisp?

junke 11y ago
The one that was painfully standardized to avoid this kind of question? "The Lisp family of languages" vs "Lisp" is an old discussion: see http://lisp-univ-etc.blogspot.fr/2013/01/common-lisp-is-just-lisp.html http://lisp-univ-etc.blogspot.fr/2013/01/common-lisp-is-just... for a summary.
- j-pb 11y ago
  Ah so scheme then. Fair enough, scheme is probably the most worthy of the title. It's both true to McCarthys mathmatical spirit, and he himself stated that Steele is probably the closest thing to a benevolent dictator in the lisp world.
  - lispm 11y ago
    Steele hasn't edited the Scheme standard since two or three decades. Ever wondered why Scheme is called Scheme and not LexicalLisp? It's a new language, with it's own dialects, standards, libraries, implementations, communities, ... Lately Steele worked on languages like Java and Fortress. Nothing with Lisp...
    - j-pb 11y ago
      Yeah why would he. We don't revise lambda calculus every year.
      - lispm 11y ago
        Yet, Scheme has seen many standard revisions. Without Steele editing it. The Scheme standard has been edited by others, not Steele. Since three decades. From R2RS in 1985 up to R7RS in 2013.
lispm 11y ago
McCarthy's Lisp. http://www.softwarepreservation.org/projects/LISP/lisp15_family/ http://www.softwarepreservation.org/projects/LISP/lisp15_fam... Its core lives in every Lisp.
- j-pb 11y ago
  Fair enough, but then no lisp in use today is lisp.
  - lispm 11y ago
    Its core lives in Lisp dialects like Emacs Lisp just fine. Try GNU Emacs and the REPL: M-x ielm *** Welcome to IELM *** Type (describe-mode) for help. ELISP> (append '(this is a Lisp) '(REPL)) (this is a Lisp REPL) ELISP> (cons 'This (append '(is a) (list 'Lisp 'REPL))) (This is a Lisp REPL) This code is from McCarthy's Lisp 1.5 Programmer's manual, from 1962, running in Common Lisp: CL-USER 6 > (defun my-length (l) (prog (u v) (setq v 0) (setq u l) a (cond ((null u) (return v))) (setq u (cdr u)) (setq v (+ v 1)) (go a))) MY-LENGTH CL-USER 7 > (my-length '(1 2 3 4 5)) 5 That's why it's called a 'Lisp' -> it runs Lisp code.

Which lisp?

by j-pb 11y ago

Which lisp?

junke 11y ago

The one that was painfully standardized to avoid this kind of question? "The Lisp family of languages" vs "Lisp" is an old discussion: see http://lisp-univ-etc.blogspot.fr/2013/01/common-lisp-is-just-lisp.html http://lisp-univ-etc.blogspot.fr/2013/01/common-lisp-is-just... for a summary.

j-pb 11y ago
Ah so scheme then. Fair enough, scheme is probably the most worthy of the title. It's both true to McCarthys mathmatical spirit, and he himself stated that Steele is probably the closest thing to a benevolent dictator in the lisp world.
- lispm 11y ago
  Steele hasn't edited the Scheme standard since two or three decades. Ever wondered why Scheme is called Scheme and not LexicalLisp? It's a new language, with it's own dialects, standards, libraries, implementations, communities, ... Lately Steele worked on languages like Java and Fortress. Nothing with Lisp...
  - j-pb 11y ago
    Yeah why would he. We don't revise lambda calculus every year.
    - lispm 11y ago
      Yet, Scheme has seen many standard revisions. Without Steele editing it. The Scheme standard has been edited by others, not Steele. Since three decades. From R2RS in 1985 up to R7RS in 2013.

lispm 11y ago

McCarthy's Lisp. http://www.softwarepreservation.org/projects/LISP/lisp15_family/ http://www.softwarepreservation.org/projects/LISP/lisp15_fam... Its core lives in every Lisp.

j-pb 11y ago
Fair enough, but then no lisp in use today is lisp.
- lispm 11y ago
  Its core lives in Lisp dialects like Emacs Lisp just fine. Try GNU Emacs and the REPL: M-x ielm *** Welcome to IELM *** Type (describe-mode) for help. ELISP> (append '(this is a Lisp) '(REPL)) (this is a Lisp REPL) ELISP> (cons 'This (append '(is a) (list 'Lisp 'REPL))) (This is a Lisp REPL) This code is from McCarthy's Lisp 1.5 Programmer's manual, from 1962, running in Common Lisp: CL-USER 6 > (defun my-length (l) (prog (u v) (setq v 0) (setq u l) a (cond ((null u) (return v))) (setq u (cdr u)) (setq v (+ v 1)) (go a))) MY-LENGTH CL-USER 7 > (my-length '(1 2 3 4 5)) 5 That's why it's called a 'Lisp' -> it runs Lisp code.