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bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-
From: |
Lars Ingebrigtsen |
Subject: |
bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward' |
Date: |
Wed, 25 Sep 2019 15:15:58 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> . The original doc string said about nil as PREDICATE:
>
> `nil' means almost the same as \"not equal\", but will also
> end the match if the value of PROPERTY changes.
>
> What does it mean to "end the match if the value changes"? The
> text went on to say "See the manual for extensive examples", but
> the manual doesn't mention this aspect of nil, it just says "not
> equal".
If point is inside a region where PROPERTY has a non-nil value, using
nil as the predicate will end the search when PROPERTY changes value.
> . The doc string stated:
>
> If NOT-CURRENT, if the match is under point, it will not be
> returned, but instead the next instance is returned, if any.
>
> But the code, AFAIU, just checks whether the value of PROPERTY at
> point matches that of the found region, which doesn't necessarily
> mean point is part of the region, it could just mean there are two
> regions with matching values of PROPERTY, and point belongs to one
> of them. Right?
I'm not sure I understand the question...
What it's meant to do is basically how TAB works in buttons, which is a
common use case. If you're looking for "o", and point is where "|" is
below, then it'll find the last "oo" section after the x-es:
oo|oxxxxxoo
> . What is the reason for having VALUE an optional argument? Is it a
> frequent/useful operation to look for a VALUE of nil?
If PREDICATE is nil, then having to use an explicit nil VALUE isn't
necessary.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', (continued)
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Juanma Barranquero, 2019/09/23
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Michael Heerdegen, 2019/09/23
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Michael Heerdegen, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Michael Heerdegen, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward',
Lars Ingebrigtsen <=
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/25
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/26
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/27
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Eli Zaretskii, 2019/09/27
- bug#37488: 27.0.50; Inconsistent naming of arg of `text-property-search-forward' and `-backward', Lars Ingebrigtsen, 2019/09/27