GNU bug report logs - #30816
27.0.50; Info documentation of previous-property-change is not very clear

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Package: emacs;

Reported by: Xu Chunyang <mail <at> xuchunyang.me>

Date: Wed, 14 Mar 2018 09:59:01 UTC

Severity: minor

Found in version 27.0.50

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Xu Chunyang <mail <at> xuchunyang.me>
Subject: bug#30816: closed (Re: bug#30816: 27.0.50; Info documentation of
 previous-property-change is not very clear)
Date: Wed, 14 Mar 2018 19:36:02 +0000

[Message part 1 (text/plain, inline)]
Your bug report

#30816: 27.0.50; Info documentation of previous-property-change is not very clear

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 30816 <at> debbugs.gnu.org.

-- 
30816: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=30816
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]
From: Eli Zaretskii <eliz <at> gnu.org>
To: Xu Chunyang <mail <at> xuchunyang.me>
Cc: 30816-done <at> debbugs.gnu.org
Subject: Re: bug#30816: 27.0.50;
 Info documentation of previous-property-change is not very clear
Date: Wed, 14 Mar 2018 21:35:39 +0200

> From: Xu Chunyang <mail <at> xuchunyang.me>
> Cc: 30816 <at> debbugs.gnu.org
> Date: Thu, 15 Mar 2018 03:04:30 +0800
> 
> Thanks for your explanation. Feel free to close the issue.

Done.


[Message part 3 (message/rfc822, inline)]
From: Xu Chunyang <mail <at> xuchunyang.me>
To: bug-gnu-emacs <at> gnu.org
Subject: 27.0.50;
 Info documentation of previous-property-change is not very clear
Date: Wed, 14 Mar 2018 17:58:32 +0800

(info "(elisp) Property Search") has the following:

     -- Function: previous-property-change pos &optional object limit
         This is like ‘next-property-change’, but scans back from POS
         instead of forward.  If the value is non-‘nil’, it is a position
                                 ^^^^^^^^^
         less than or equal to POS; it equals POS only if LIMIT equals POS.
                                    ^^

I don't understand the second sentence. What "the value" stands for? If
it stands for LIMIT, what "it" stands for?
This bug report was last modified 7 years and 122 days ago.

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