Re: Searching for line beginning

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: contovob@tcd.ie,  emacs-devel@gnu.org
> Date: Mon, 15 Aug 2022 06:28:05 +0200
> 
> By the way, I see that Fline_beginning_position/end have grown field
> capabilities while I wasn't looking (in 2000).  I.e., they call
> Fconstrain_to_field, which is a pretty complex function.

You can disable that by binding inhibit-field-text-motion.

> The field stuff only makes sense in user-oriented buffers, while we use
> line-end-position extensively in Emacs to parse buffers in general --
> but we get this field penalty throughout Emacs.

line-beginning-position is also needed in handling UI, so it needs to
serve double duty.  If the application doesn't need to cater to
fields, it can disable that, see above.