bug#35708: [27.0.50]: thingatpt.el, thing-at-point-looking-at redundant

[Andreas Röhler]

On 13.05.19 14:41, Noam Postavsky wrote:
> Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
>
> > as result of ‘thing-at-point-looking-at’ finally is delivered by
> > ‘looking-at’,
> > don't see any sense in calling ‘re-search-forward’ first.
> The test added below fails if the re-search-forward in
> thing-at-point-looking-at is commented out.  Does that tell you what the
> "sense" is?

Thought at something like below, which should pass the test:

(defun ar-thing-at-point-looking-at (regexp)
  "Return t if regexp matches at or before point, nil otherwise."
  (save-excursion
      (while (not (or (looking-at regexp)(bolp)))
      (forward-char -1))
      (looking-at regexp)))