Is there a package to get a popup of the documentation for the thing at the point?

Here's an example that flycheck uses.


  • 1
    Check out clippy. It's easy to modify the code to remove the Clippy character if you don't want it. – Tianxiang Xiong Jan 3 '16 at 22:27

Don't know what kind of documentation you want, I use the following to display a short summary of elisp function/variable's docstring with popup:

(defun chunyang-elisp-function-or-variable-quickhelp (symbol)
  "Display summary of function or variable at point.

Adapted from `describe-function-or-variable'."
   (let* ((v-or-f (variable-at-point))
          (found (symbolp v-or-f))
          (v-or-f (if found v-or-f (function-called-at-point))))
     (list v-or-f)))
  (if (not (and symbol (symbolp symbol)))
      (message "You didn't specify a function or variable")
    (let* ((fdoc (when (fboundp symbol)
                   (or (documentation symbol t) "Not documented.")))
           (fdoc-short (and (stringp fdoc)
                            (substring fdoc 0 (string-match "\n" fdoc))))
           (vdoc (when  (boundp symbol)
                   (or (documentation-property symbol 'variable-documentation t)
                       "Not documented as a variable.")))
           (vdoc-short (and (stringp vdoc)
                            (substring vdoc 0 (string-match "\n" vdoc)))))
      (and (require 'popup nil 'no-error)
             (and fdoc-short vdoc-short
                  (concat fdoc-short "\n\n"
                          (make-string 30 ?-) "\n" (symbol-name symbol)
                          " is also a " "variable." "\n\n"
            :margin t)))))

Here is what it looks like:

Screenshot of chunyang-elisp-function-or-variable-quickhelp

| improve this answer | |
  • company-quickhelp works for more than Elisp. What would it take to create a more general solution that takes into account the major-mode, and maybe other factors? – Tianxiang Xiong Dec 31 '15 at 23:10

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.