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>

" Vim syntax file
" Language:	exports
" Maintainer:	This runtime file is looking for a new maintainer.
" Former Maintainer: Charles E. Campbell
" Last Change:	Aug 31, 2016
" Version:	8
" Notes:		This file includes both SysV and BSD 'isms
" Former URL:	http://www.drchip.org/astronaut/vim/index.html#SYNTAX_EXPORTS

" quit when a syntax file was already loaded
if exists("b:current_syntax")
  finish
endif

" Options: -word
syn keyword exportsKeyOptions contained	alldirs	nohide	ro	wsync
syn keyword exportsKeyOptions contained	kerb	o	rw
syn match exportsOptError contained	"[a-z]\+"

" Settings: word=
syn keyword exportsKeySettings contained	access	anon	root	rw
syn match exportsSetError contained	"[a-z]\+"

" OptSet: -word=
syn keyword exportsKeyOptSet contained	mapall	maproot	mask	network
syn match exportsOptSetError contained	"[a-z]\+"

" options and settings
syn match exportsSettings	"[a-z]\+="  contains=exportsKeySettings,exportsSetError
syn match exportsOptions	"-[a-z]\+"  contains=exportsKeyOptions,exportsOptError
syn match exportsOptSet	"-[a-z]\+=" contains=exportsKeyOptSet,exportsOptSetError

" Separators
syn match exportsSeparator	"[,:]"

" comments
syn match exportsComment	"^\s*#.*$"	contains=@Spell

" Define the default highlighting.
if !exists("skip_exports_syntax_inits")

  hi def link exportsKeyOptSet	exportsKeySettings
  hi def link exportsOptSet	exportsSettings

  hi def link exportsComment	Comment
  hi def link exportsKeyOptions	Type
  hi def link exportsKeySettings	Keyword
  hi def link exportsOptions	Constant
  hi def link exportsSeparator	Constant
  hi def link exportsSettings	Constant

  hi def link exportsOptError	Error
  hi def link exportsOptSetError	Error
  hi def link exportsSetError	Error

endif

let b:current_syntax = "exports"
" vim: ts=10