Emacs 猛拉行为已更改 - 如何恢复旧行为？

Question

This is on Linux (Ubuntu), working with emacs -nw in an xterm. GNU Emacs 26.3

Until recently I had two copy & paste mechanisms available:

1. kill some text using ^K ( kill-line ), it would go to the kill-ring, and could be retrieved using ^Y ( yank )

2. select some text, possibly in another window, maybe in emacs or firefox, using the left mouse button, it would go to some X selection buffer, and could be retrieved using the middle mouse button.

These two channels worked entirely independent of each other.

Nowadays pasting a mouse selection pollutes the emacs kill-ring, or at least after mouse-pasting some text a yank also pastes that same text.

How can I teach emacs again not to change the kill-ring and use the unchanged kill-ring upon yank, independent of any mouse pasting? I tried a few combinations of (setq select-enable-clipboard t) and (setq select-enable-primary nil) but did not hit a successful.emacs incantation.

Answer 1

Try

(setq interprogram-paste-function (lambda () nil))

If you've added something to the X11 clipboard, yank will try to insert that instead of the top of the kill ring using interprogram-paste-function . If ipf returns nil , it will use the top of kill-ring .

When I run a terminal Emacs, gui-selection-value always returns nil anyway, so I'm not sure why yours doesn't.

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Looking at the source, (setq select-enable-clipboard nil select-enable-primary nil) should achieve the same result.