Re: trunk r113818: lisp/xml.el (xml-parse-tag-1): Use looking-at.

[Juanma Barranquero <lekktu@gmail.com>]

On Mon, Aug 12, 2013 at 5:32 PM, Lars Magne Ingebrigtsen <larsi@gnus.org> wrote:

>> -         (while (not (looking-at-p end))
>> +         (while (not (looking-at end))
>
> Wouldn't it be better to fix the bogus test instead of changing
> apparently perfectly good code (for the (slightly) worse)?

I'd tend to agree. In this case, an apparent predicate test (even
using (not ...) to reinforce that idea) has a follow-up match-data use
almost 30 lines afterwards; to make things worse,
the code in between (inside (while ...)) also uses string matching
(which does not affect the test, but produces some cognitive load when
reading it). Ugly, I'd say.

> That's the danger of test suites.  >"?

All in all, a small one, against the advantage of having working code ;-)

    J