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Coding Emacs's M-x in Lisp

• aerique 17y ago
  I don't know about anything Emacs internals but what a strange remark: "I recently wanted to change how `M-x' works. The command behind it is called `execute-extended-command'. It is written in C. This is disappointing for my desires to tinker, but not all together surprising either. It is a pretty central piece of the Emacs infrastructure." It being a central piece of infrastructure I would expect it to be written in a higher level language for better maintainability.
  • alextp 17y ago
    But since it is a pretty stable and simple structure it is written in a lower level language for either stability or performance or opacity.
• jrandom 17y ago
  (if (and (not (null suggest-key-bindings)) My C-oriented brain screams bloody murder at this. (I still want to learn Clojure.)
  • shaunxcode 17y ago
    It's because you are missing the other part of the and (if (and (not (null suggest-key-bindings)) (null executing-kbd-macro)) if(not(null(suggest-key-bindings)) && null(executing-kbd-macro)) Does that help?
    • jrandom 17y ago
      No. I mean, I understand it just fine, I just hate the structure of it. Something about it causes revulsion, something that would probably go away if I actually sat down and learned lisp.
      • shaunxcode 17y ago
        you'll end up with the inverse problem when you go back to infix notation though - be warned! when I see func(arg) I feel like I am on the inside of a star fruit.