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>

Test character classes in regexp using regexpengine 0, 1, 2.

STARTTEST
/^start-here/+1
Y:s/\%#=0\d//g
p:s/\%#=1\d//g
p:s/\%#=2\d//g
p:s/\%#=0[0-9]//g
p:s/\%#=1[0-9]//g
p:s/\%#=2[0-9]//g
p:s/\%#=0\D//g
p:s/\%#=1\D//g
p:s/\%#=2\D//g
p:s/\%#=0[^0-9]//g
p:s/\%#=1[^0-9]//g
p:s/\%#=2[^0-9]//g
p:s/\%#=0\o//g
p:s/\%#=1\o//g
p:s/\%#=2\o//g
p:s/\%#=0[0-7]//g
p:s/\%#=1[0-7]//g
p:s/\%#=2[0-7]//g
p:s/\%#=0\O//g
p:s/\%#=1\O//g
p:s/\%#=2\O//g
p:s/\%#=0[^0-7]//g
p:s/\%#=1[^0-7]//g
p:s/\%#=2[^0-7]//g
p:s/\%#=0\x//g
p:s/\%#=1\x//g
p:s/\%#=2\x//g
p:s/\%#=0[0-9A-Fa-f]//g
p:s/\%#=1[0-9A-Fa-f]//g
p:s/\%#=2[0-9A-Fa-f]//g
p:s/\%#=0\X//g
p:s/\%#=1\X//g
p:s/\%#=2\X//g
p:s/\%#=0[^0-9A-Fa-f]//g
p:s/\%#=1[^0-9A-Fa-f]//g
p:s/\%#=2[^0-9A-Fa-f]//g
p:s/\%#=0\w//g
p:s/\%#=1\w//g
p:s/\%#=2\w//g
p:s/\%#=0[0-9A-Za-z_]//g
p:s/\%#=1[0-9A-Za-z_]//g
p:s/\%#=2[0-9A-Za-z_]//g
p:s/\%#=0\W//g
p:s/\%#=1\W//g
p:s/\%#=2\W//g
p:s/\%#=0[^0-9A-Za-z_]//g
p:s/\%#=1[^0-9A-Za-z_]//g
p:s/\%#=2[^0-9A-Za-z_]//g
p:s/\%#=0\h//g
p:s/\%#=1\h//g
p:s/\%#=2\h//g
p:s/\%#=0[A-Za-z_]//g
p:s/\%#=1[A-Za-z_]//g
p:s/\%#=2[A-Za-z_]//g
p:s/\%#=0\H//g
p:s/\%#=1\H//g
p:s/\%#=2\H//g
p:s/\%#=0[^A-Za-z_]//g
p:s/\%#=1[^A-Za-z_]//g
p:s/\%#=2[^A-Za-z_]//g
p:s/\%#=0\a//g
p:s/\%#=1\a//g
p:s/\%#=2\a//g
p:s/\%#=0[A-Za-z]//g
p:s/\%#=1[A-Za-z]//g
p:s/\%#=2[A-Za-z]//g
p:s/\%#=0\A//g
p:s/\%#=1\A//g
p:s/\%#=2\A//g
p:s/\%#=0[^A-Za-z]//g
p:s/\%#=1[^A-Za-z]//g
p:s/\%#=2[^A-Za-z]//g
p:s/\%#=0\l//g
p:s/\%#=1\l//g
p:s/\%#=2\l//g
p:s/\%#=0[a-z]//g
p:s/\%#=1[a-z]//g
p:s/\%#=2[a-z]//g
p:s/\%#=0\L//g
p:s/\%#=1\L//g
p:s/\%#=2\L//g
p:s/\%#=0[^a-z]//g
p:s/\%#=1[^a-z]//g
p:s/\%#=2[^a-z]//g
p:s/\%#=0\u//g
p:s/\%#=1\u//g
p:s/\%#=2\u//g
p:s/\%#=0[A-Z]//g
p:s/\%#=1[A-Z]//g
p:s/\%#=2[A-Z]//g
p:s/\%#=0\U//g
p:s/\%#=1\U//g
p:s/\%#=2\U//g
p:s/\%#=0[^A-Z]//g
p:s/\%#=1[^A-Z]//g
p:s/\%#=2[^A-Z]//g
p:s/\%#=0\%204l^\t...//g
p:s/\%#=1\%205l^\t...//g
p:s/\%#=2\%206l^\t...//g
:/^start-here/+1,$wq! test.out
ENDTEST

start-here
	
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