Let us add DEFAPARAMETER to the long list of features #Emacs Lisp is missing compared to #CommonLisp. ELisp only has DEFVAR, which does not modify the binding if it already exists. Perfect to keep a state. But for a lot of top-level values, you want DEFPARAMETER, which creates or updates a binding.
Module development with DEFVAR only is really frustrating, forced to manually call SETQ each time you want to change a value.
Nicolas Martyanoff /
npub1dk…h54dt
2025-03-15 17:28:47
Author Public Key
npub1dkg70vzk4vvfsc5cup9gkfu2tcrs5unysl7npfvegf78nkuswr5skh54dtPublished at
2025-03-15 17:28:47Event JSON
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"content": "Let us add DEFAPARAMETER to the long list of features #Emacs Lisp is missing compared to #CommonLisp. ELisp only has DEFVAR, which does not modify the binding if it already exists. Perfect to keep a state. But for a lot of top-level values, you want DEFPARAMETER, which creates or updates a binding.\n\nModule development with DEFVAR only is really frustrating, forced to manually call SETQ each time you want to change a value.",
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