From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: About the overlay property `modification-hooks'
Date: Sun, 24 Feb 2013 05:52:16 +0200 [thread overview]
Message-ID: <83ppzqjrm7.fsf@gnu.org> (raw)
In-Reply-To: <20130224113555.6f39233dcc506a402902ff44@gmail.com>
> Date: Sun, 24 Feb 2013 11:35:55 +0800
> From: Xue Fuqiao <xfq.free@gmail.com>
>
> In (info "(elisp) Overlay Properties"):
>
> When called after a change, each function receives five arguments:
> the overlay, `t', the beginning and end of the text range just
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> modified, and the length of the pre-change text replaced by that
> range. (For an insertion, the pre-change length is zero; for a
> deletion, that length is the number of characters deleted, and the
> post-change beginning and end are equal.)
>
> I'm perplexed about the sentence in the parentheses. What does the
> "post-change beginning and end" mean here? Can anybody help? Thanks.
See the part underlined above.
prev parent reply other threads:[~2013-02-24 3:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-24 3:35 About the overlay property `modification-hooks' Xue Fuqiao
2013-02-24 3:52 ` Eli Zaretskii [this message]
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