bounds for strings with - between subwords

[steve-humphreys@gmx.com]

I am using the following function that gets me the bounds for each word.

But I have strings like

bibl-bellerive-etal-2016

which I want to get the bounds for strings with - between subwords.

--------

(defun alpha-bounds ()
   "Gets bounds of a subword unit defined by regular expression [a-zA-Z]."

   (let ( ($bounds nil) $ma $mb )

      (skip-chars-backward "[:alpha:]")
      (setq $ma (point))
      (skip-chars-forward "[:alpha:]")
      (setq $mb (point))
      (setq $bounds (bounds-of-thing-at-point 'word))
      (cons $ma $mb) ))