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From: Eli Zaretskii <eliz@gnu.org>
To: emacs-devel@gnu.org
Subject: Searching for line beginning
Date: Sat, 13 Aug 2022 18:43:29 +0300	[thread overview]
Message-ID: <831qtkm9ni.fsf@gnu.org> (raw)

C-a (move-beginning-of-line) does this to find the line's beginning:

    ;; Move to beginning-of-line, ignoring fields and invisible text.
    (skip-chars-backward "^\n")
    (while (and (not (bobp)) (invisible-p (1- (point))))
      (goto-char (previous-char-property-change (point)))
      (skip-chars-backward "^\n"))

Apart of the fields part (which can be handled by binding
inhibit-field-text-motion), can anyone see a reason why not use
line-beginning-position instead?  The latter is much faster,
especially when lines are very long.



             reply	other threads:[~2022-08-13 15:43 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-13 15:43 Eli Zaretskii [this message]
2022-08-13 16:20 ` Searching for line beginning Stefan Monnier
2022-08-13 17:58   ` Eli Zaretskii
2022-08-14 12:54   ` Eli Zaretskii
2022-08-14 15:33 ` Basil L. Contovounesios
2022-08-14 15:36   ` Eli Zaretskii
2022-08-14 15:43     ` Lars Ingebrigtsen
2022-08-14 15:48       ` Eli Zaretskii
2022-08-15  4:28         ` Lars Ingebrigtsen
2022-08-15 11:29           ` Eli Zaretskii
2022-08-15 11:37             ` Lars Ingebrigtsen
2022-08-15 12:00               ` Eli Zaretskii
2022-08-17  2:49                 ` Richard Stallman
2022-08-17 10:41                   ` Lars Ingebrigtsen
2022-08-17 11:48                   ` Eli Zaretskii
2022-08-17 11:52               ` Stefan Monnier
2022-08-18 12:37                 ` Lars Ingebrigtsen
2022-08-14 17:24     ` Stefan Monnier

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