Mercurial > vim
view runtime/doc/os_unix.txt @ 34536:ad6cd802579d v9.1.0170
patch 9.1.0170: Re-allow curwin == prevwin, but document it instead
Commit: https://github.com/vim/vim/commit/d64801e913314d2e19dbb38f60e6d285238debff
Author: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Date: Tue Mar 12 20:46:12 2024 +0100
patch 9.1.0170: Re-allow curwin == prevwin, but document it instead
Problem: more places exist where curwin == prevwin, and it may even be
expected in some cases.
Solution: revert v9.1.0001, but document that it's possible instead.
(Sean Dewar)
I've had a change of heart for the following reasons:
- A quick 'n dirty [GitHub code
search](https://github.com/search?q=%2F%28winnr%5C%28%5C%29%5Cs*%3D%3D%5Cs*winnr%5C%28%5B%27%22%5D%23%5B%27%22%5D%5C%29%7Cwinnr%5C%28%5B%27%22%5D%23%5B%27%22%5D%5C%29%5Cs*%3D%3D%5Cs*winnr%5C%28%5C%29%29%2F&type=code)
reveals some cases where it's expected in the wild.
Particularly, it made me aware `winnr() == winnr('#')` is possible when curwin
is changed temporarily during the evaluation of a &statusline expression item
(`%{...}`), and is used to show something different on the statusline
belonging to the previous window; that behaviour wasn't changed in v9.1.0001,
but it means curwin == prevwin makes sense in some cases.
- The definition and call sites of back_to_prevwin imply some expectation that
prevwin == wp (== curwin) is possible, as it's used to skip entering the
prevwin in that case.
- Prior to v9.1.0001, `:wincmd p` would not beep in the case that was patched in
v9.1.0001, but now does. That resulted in #14047 being opened, as it affected
the CtrlP plugin.
I find it odd that `:wincmd p` had cases where it wouldn't beep despite doing
nothing, but it may be preferable to keep things that way (or instead also
beep if curwin == prevwin, if that's preferred).
- After more digging, I found cases in win_free_mem, enter_tabpage,
aucmd_restbuf and qf_open_new_cwindow where curwin == prevwin is possible
(many of them from autocommands). Others probably exist too, especially in
places where curwin is changed temporarily.
fixes: #14047
closes: #14186
Signed-off-by: Sean Dewar <6256228+seandewar@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Tue, 12 Mar 2024 21:00:11 +0100 |
parents | 4635e43f2c6f |
children |
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*os_unix.txt* For Vim version 9.1. Last change: 2022 Nov 25 VIM REFERENCE MANUAL by Bram Moolenaar *unix* *Unix* This file contains the particularities for the Unix version of Vim. For compiling Vim on Unix see "INSTALL" and "Makefile" in the src directory. The default help file name is "/usr/local/lib/vim/help.txt" The files "$HOME/.vimrc" and "$HOME/.exrc" are used instead of "s:.vimrc" and "s:.exrc". Additionally "/usr/local/etc/vimrc" is used first. If "/usr/local/share" exists it is used instead of "/usr/local/lib". Temporary files (for filtering) are put in "/tmp". If you want to place them somewhere else, set the environment variable $TMPDIR to the directory you prefer. With wildcard expansion you can use '~' (home directory) and '$' (environment variable). *fork* *spoon* For executing external commands fork()/exec() is used when possible, otherwise system() is used, which is a bit slower. The output of ":version" includes |+fork| when fork()/exec() is used, |+system()| when system() is used. This can be changed at compile time. (For forking of the GUI version see |gui-fork|.) For historic reasons terminal updating under Unix is expected to be slow (e.g. serial line terminal, shell window in suntools), the 'showcmd' and 'ruler' options are off by default. If you have a fast terminal, try setting them on: > set showcmd ruler When using Vim in an xterm the mouse clicks can be used by Vim by setting 'mouse' to "a". If there is access to an X-server gui style copy/paste will be used and visual feedback will be provided while dragging with the mouse. If you then still want the xterm copy/paste with the mouse, press the shift key when using the mouse. See |mouse-using|. Visual feedback while dragging can also be achieved via the 'ttymouse' option if your xterm is new enough. *terminal-colors* To use colors in Vim you can use the following example (if your terminal supports colors, but "T_Co" is empty or zero): > :set t_me=^[[0;1;36m " normal mode (undoes t_mr and t_md) :set t_mr=^[[0;1;33;44m " reverse (invert) mode :set t_md=^[[1;33;41m " bold mode :set t_se=^[[1;36;40m " standout end :set t_so=^[[1;32;45m " standout mode :set t_ue=^[[0;1;36m " underline end :set t_us=^[[1;32m " underline mode start [the ^[ is an <Esc>, type CTRL-V <Esc> to enter it] For real color terminals the ":highlight" command can be used. The file "tools/vim132" is a shell script that can be used to put Vim in 132 column mode on a vt100 and lookalikes. vim:tw=78:ts=8:noet:ft=help:norl: