In elisp, symbols serve as fundamental data structures that are more foundational compared to strings. This distinction often caused confusion for me until my encounter with the read function.

 ~ $ (type-of (read))
 symbol

The fact that the read function yields symbols instead of strings from user-input was a delightful revelation. This discovery convinces me that the fundamental nature of symbols in elisp when compared to strings.

  • AbstProcDo@alien.topOPBEnglish
    1·
    11 months ago

    Interesting. It’s intelligent capability to discern and identify numbers, strings, and symbols. What I tried is to feed to minibuffer word string.

    • 7890yuiop@alien.topBEnglish
      1·
      11 months ago
      (type-of (read "foo"))
symbol

(type-of (read "\"foo\""))
string

(type-of (read "42"))
integer

(type-of (read "[42]"))
vector

(type-of (read "(42)"))
cons

      Etc, etc…

      The lisp reader reads text and it produces lisp objects of various types (which might later be evaluated as code).

    • arthurno1@alien.topBEnglish
      1·
      11 months ago

      What I tried is to feed to minibuffer word string.

      So you have called:

      M-: (type-of (read)) RET string RET?

      You have just created a temporary symbol named “string”. You can try this to see for yourself:

      M-: (symbol-name (type-of (read))) RET

      If you want a string object out of “string”, you will have to quote it in the minibuffer too:

      M-: (type-of (read)) RET "string" RET?

      I think you should have not downvoted /u/lispm below (or whomever it was); he has given a few very good questions to get you going on in exploring those things on your own.