Re: What is the difference between looking-at and an anchored search?

[Miles Bader <miles.bader@necel.com>]

"Lennart Borgman (gmail)" <lennart.borgman@gmail.com> writes:
> looking-at does not have a BOUND parameter, but re-search-forward
> have. This makes re-search-forward a bit more flexible.
>
> I am looking at some code where I would have use for that flexibility,
> but I wonder if there is any drawback with replacing looking-at with
> re-search-forward (with an achored pattern).
>
> Is there any? Performance?

If you want to reject matches that extend past some point, just do
something like:

   (and (looking-at REGEXP) (<= (match-end 0) BOUND))

-Miles

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