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 filetype plugin file
" Language:		csh
" Maintainer:		Doug Kearns <dougkearns@gmail.com>
" Previous Maintainer:	Dan Sharp
" Contributor:		Johannes Zellner <johannes@zellner.org>
" Last Change:		2024 Jan 14

if exists("b:did_ftplugin")
  finish
endif
let b:did_ftplugin = 1

let s:save_cpo = &cpo
set cpo-=C

setlocal comments=:#
setlocal commentstring=#%s
setlocal formatoptions-=t
setlocal formatoptions+=crql

let b:undo_ftplugin = "setlocal com< cms< fo<"

" Csh: thanks to Johannes Zellner
" - Both foreach and end must appear alone on separate lines.
" - The words else and endif must appear at the beginning of input lines;
"   the if must appear alone on its input line or after an else.
" - Each case label and the default label must appear at the start of a
"   line.
" - while and end must appear alone on their input lines.
if exists("loaded_matchit") && !exists("b:match_words")
  let s:line_start = '\%(^\s*\)\@<='
  let b:match_words =
	\ s:line_start .. 'if\s*(.*)\s*then\>:' ..
	\   s:line_start .. 'else\s\+if\s*(.*)\s*then\>:' .. s:line_start .. 'else\>:' ..
	\   s:line_start .. 'endif\>,' ..
	\ s:line_start .. '\%(\<foreach\s\+\h\w*\|while\)\s*(:' ..
	\   '\<break\>:\<continue\>:' ..
	\   s:line_start .. 'end\>,' ..
	\ s:line_start .. 'switch\s*(:' ..
	\   s:line_start .. 'case\s\+:' .. s:line_start .. 'default\>:\<breaksw\>:' ..
	\   s:line_start .. 'endsw\>'
  unlet s:line_start
  let b:undo_ftplugin ..= " | unlet! b:match_words"
endif

if (has("gui_win32") || has("gui_gtk")) && !exists("b:browsefilter")
  let b:browsefilter = "csh Scripts (*.csh)\t*.csh\n"
  if has("win32")
    let b:browsefilter ..= "All Files (*.*)\t*\n"
  else
    let b:browsefilter ..= "All Files (*)\t*\n"
  endif
  let b:csh_set_browsefilter = 1
  let b:undo_ftplugin ..= " | unlet! b:browsefilter b:csh_set_browsefilter"
endif

let &cpo = s:save_cpo
unlet s:save_cpo