GNU bug report logs - #37488
27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward'

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Message #19 received at 37488 <at> debbugs.gnu.org (full text, mbox):

From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: Juanma Barranquero <lekktu <at> gmail.com>, Lars Ingebrigtsen <larsi <at> gnus.org>,
 37488 <at> debbugs.gnu.org
Subject: Re: bug#37488: 27.0.50; Inconsistent naming of arg of
 `text-property-search-forward' and `-backward'
Date: Wed, 25 Sep 2019 11:35:01 +0200

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

>  . What is the reason for having VALUE an optional argument?  Is it a
>  frequent/useful operation to look for a VALUE of nil?

I also wondered about the optional args, semantics is a bit unusual:
note that PREDICATE -> nil means "not equal", so with VALUE -> nil this
actually searches for non-nil values of the text property, which is a
reasonable (and the expected) default behavior.  I needed to read it
twice.

Michael.

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