view README.txt @ 34379:37b4c89ba420 v9.1.0116

patch 9.1.0116: win_split_ins may not check available room Commit: https://github.com/vim/vim/commit/0fd44a5ad81ade342cb54d8984965bdedd2272c8 Author: Sean Dewar <6256228+seandewar@users.noreply.github.com> Date: Tue Feb 20 20:28:15 2024 +0100 patch 9.1.0116: win_split_ins may not check available room Problem: win_split_ins has no check for E36 when moving an existing window Solution: check for room and fix the issues in f_win_splitmove() (Sean Dewar) win_split_ins has no check for E36 when moving an existing window, allowing for layouts with many overlapping zero-sized windows to be created (which may also cause drawing issues with tablines and such). f_win_splitmove also has some bugs. So check for room and fix the issues in f_win_splitmove. Handle failure in the two relevant win_split_ins callers by restoring the original layout, and factor the common logic into win_splitmove. Don't check for room when opening an autocommand window, as it's a temporary window that's rarely interacted with or drawn anyhow, and is rather important for some autocommands. Issues fixed in f_win_splitmove: - Error if splitting is disallowed. - Fix heap-use-after-frees if autocommands fired from switching to "targetwin" close "wp" or "oldwin". - Fix splitting the wrong window if autocommands fired from switching to "targetwin" switch to a different window. - Ensure -1 is returned for all errors. Also handle allocation failure a bit earlier in make_snapshot (callers, except win_splitmove, don't really care if a snapshot can't be made, so just ignore the return value). Note: Test_smoothscroll_in_zero_width_window failed after these changes with E36, as it was using the previous behaviour to create a zero-width window. I've fixed the test such that it fails with UBSAN as expected when v9.0.1367 is reverted (and simplified it too). related: #14042 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, 20 Feb 2024 22:30:04 +0100
parents 4635e43f2c6f
children fe206762c077
line wrap: on
line source

README.txt for version 9.1 of Vim: Vi IMproved.


WHAT IS VIM?

Vim is a greatly improved version of the good old UNIX editor Vi.  Many new
features have been added: multi-level undo, syntax highlighting, command line
history, on-line help, spell checking, filename completion, block operations,
script language, etc.  There is also a Graphical User Interface (GUI)
available.  Still, Vi compatibility is maintained, those who have Vi "in the
fingers" will feel at home.  See "runtime/doc/vi_diff.txt" for differences with
Vi.

This editor is very useful for editing programs and other plain text files.
All commands are given with normal keyboard characters, so those who can type
with ten fingers can work very fast.  Additionally, function keys can be
mapped to commands by the user, and the mouse can be used.

Vim runs under MS-Windows (7, 8, 10, 11), macOS, Haiku, VMS and almost all
flavours of UNIX.  Porting to other systems should not be very difficult.
Older versions of Vim run on MS-DOS, MS-Windows 95/98/Me/NT/2000/XP/Vista,
Amiga DOS, Atari MiNT, BeOS, RISC OS and OS/2.  These are no longer maintained.


DISTRIBUTION

You can often use your favorite package manager to install Vim.  On Mac and
Linux a small version of Vim is pre-installed, you still need to install Vim
if you want more features.

There are separate distributions for Unix, PC, Amiga and some other systems.
This README.txt file comes with the runtime archive.  It includes the
documentation, syntax files and other files that are used at runtime.  To run
Vim you must get either one of the binary archives or a source archive.
Which one you need depends on the system you want to run it on and whether you
want or must compile it yourself.  Check "https://www.vim.org/download.php" for
an overview of currently available distributions.

Some popular places to get the latest Vim:
* Check out the git repository from github: https://github.com/vim/vim.
* Get the source code as an archive: https://github.com/vim/vim/releases.
* Get a Windows executable from the vim-win32-installer repository:
  https://github.com/vim/vim-win32-installer/releases.


COMPILING

If you obtained a binary distribution you don't need to compile Vim.  If you
obtained a source distribution, all the stuff for compiling Vim is in the
"src" directory.  See src/INSTALL for instructions.


INSTALLATION

See one of these files for system-specific instructions.  Either in the
READMEdir directory (in the repository) or the top directory (if you unpack an
archive):

README_ami.txt		Amiga
README_unix.txt		Unix
README_dos.txt		MS-DOS and MS-Windows
README_mac.txt		Macintosh
README_vms.txt		VMS

There are more README_*.txt files, depending on the distribution you used.


DOCUMENTATION

The Vim tutor is a one hour training course for beginners.  Often it can be
started as "vimtutor".  See ":help tutor" for more information.

The best is to use ":help" in Vim.  If you don't have an executable yet, read
"runtime/doc/help.txt".  It contains pointers to the other documentation
files.  The User Manual reads like a book and is recommended to learn to use
Vim.  See ":help user-manual".


COPYING

Vim is Charityware.  You can use and copy it as much as you like, but you are
encouraged to make a donation to help orphans in Uganda.  Please read the file
"runtime/doc/uganda.txt" for details (do ":help uganda" inside Vim).

Summary of the license: There are no restrictions on using or distributing an
unmodified copy of Vim.  Parts of Vim may also be distributed, but the license
text must always be included.  For modified versions, a few restrictions apply.
The license is GPL compatible, you may compile Vim with GPL libraries and
distribute it.


SPONSORING

Fixing bugs and adding new features takes a lot of time and effort.  To show
your appreciation for the work and motivate Bram and others to continue
working on Vim please send a donation.

Since Bram is back to a paid job the money will now be used to help children
in Uganda.  See runtime/doc/uganda.txt.  But at the same time donations
increase Bram's motivation to keep working on Vim!

For the most recent information about sponsoring look on the Vim web site:

	https://www.vim.org/sponsor/


CONTRIBUTING

If you would like to help make Vim better, see the CONTRIBUTING.md file.


INFORMATION

The latest news about Vim can be found on the Vim home page:
	https://www.vim.org/

If you have problems, have a look at the Vim documentation or tips:
	https://www.vim.org/docs.php
	https://vim.fandom.com/wiki/Vim_Tips_Wiki

If you still have problems or any other questions, use one of the mailing
lists to discuss them with Vim users and developers:
	https://www.vim.org/maillist.php

If nothing else works, report bugs directly to the vim-dev mailing list:
	<vim-dev@vim.org>


MAIN AUTHOR

Most of Vim was created by Bram Moolenaar <Bram@vim.org> |Bram-Moolenaar|

Send any other comments, patches, flowers and suggestions to the vim-dev mailing list:

	<vim-dev@vim.org>