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bug#27442: Un-obsolete x-clipboard-yank, or provide analogous functional
From: |
Constantine Kharlamov |
Subject: |
bug#27442: Un-obsolete x-clipboard-yank, or provide analogous functional |
Date: |
Wed, 21 Jun 2017 22:55:58 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.0 |
On 21.06.2017 22:10, Eli Zaretskii wrote:
>> From: Constantine Kharlamov <Hi-Angel@yandex.ru>
>> Date: Wed, 21 Jun 2017 17:29:40 +0300
>>
>> x-clipboard-yank always uses clipboard content, which is exactly what I
>> need. I.e. if I set (setq select-enable-clipboard nil) to not clutter my
>> clipboard with kills, I only get content from the clipboard. (don't get me
>> wrong, kill-ring is very cool, and I extensively use it in evil-mode. But I
>> prefer to explicitly point when I want a content in the clipboard, which
>> happens an order of magnitude rarer than usage of kill-ring).
>>
>> clipboard-yank uses a kill-ring instead.
>
> I see the same call to 'yank' in both clipboard-yank and
> x-clipboard-yank, so I'm not sure I understand what difference in
> behavior you see (you also didn't say which version of Emacs did you
> use).
Sorry. It's 26.0.50, Archlinux, emacs-gitᴬᵁᴿ. However the first time I saw the
problem at least 1.5 year ago on Ubuntu. It's just that I never reported, but
today I started worrying.
> Can you show a reproducible recipe starting from "emacs -Q"
> which could be used to see the problem?
>
> Thanks.
Well, for collecting the steps turned out `(clipboard-yank)` might have another
subtle bug. But what I said still holds. Steps:
1. start `emacs -Q`
2. Press M-: to execute `(setq select-enable-clipboard nil)`
3. Copy a text in the system, i.e. outside of Emacs.
4. Press M-: to execute `(clipboard-yank)` (you'll get at the point a content
from system clipboard)
5. Press M-< M-d (so now you have the word ";; This" in kill-ring)
6. Press M-: to execute `(clipboard-yank)`
You will see ";; This" got pasted at point, not the value in the system
clipboard.
7. Press M-: to execute `(x-clipboard-yank)`
You will see content from the system clipboard got pasted at point.
The subtle bug I just found is an inconsistent behavior: if you skip the 4-th
step, then at 6-th step you'll see the content from system clipboard. Which is
actually what I'd want (i.e. the system clipboard content, not the inconsistent
behavior, of course), but in long-term usage it pastes from kill-ring.