Function: toolbarx-option-value

toolbarx-option-value is a byte-compiled function defined in toolbar-x.el.

Signature

(toolbarx-option-value OPT)

Documentation

If OPT is a vector, return first element, otherwise, return OPT.

If OPT is vector and length is smaller than the necessary, then nil is returned.

Source Code

;; Defined in ~/.emacs.d/elpa/auctex-14.1.2/toolbar-x.el
(defun toolbarx-option-value (opt)
  "If OPT is a vector, return first element, otherwise, return OPT.
If OPT is vector and length is smaller than the necessary, then
nil is returned."
  ;; FIXME: This is backward compatibility for when we supported XEmacs
  ;; and entries could take the shape [FOO BAR] where FOO was the
  ;; value to use for Emacs and BAR the value to use for XEmacs.
  ;; This is unused since Mar 2021.
  (if (vectorp opt)
      (when (> (length opt) 0)
        (aref opt 0))
    opt))