patch 9.1.0082: Redrawing can be improved when deleting lines with 'cursorline' Commit: https://github.com/vim/vim/commit/7ce34c9a947b17a8b5e81e7c2335a63552182d10 Author: zeertzjq <zeertzjq@outlook.com> Date: Thu Feb 8 11:34:55 2024 +0100 patch 9.1.0082: Redrawing can be improved when deleting lines with 'cursorline' Problem: Redrawing can be improved when deleting lines with 'cursorline'. Solution: Use smarter invalidation and adjustment. Remove unnecessary UPD_VALID as it is already set at the top of the loop. Make the test for #4862 fail without the fix. (zeertzjq) closes: #13986 Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>

" Vim indent file
" Language:		Eterm configuration file
" Maintainer:		Doug Kearns <dougkearns@gmail.com>
" Previous Maintainer:	Nikolai Weibull <now@bitwi.se>
" Last Change:		24 Sep 2021

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

setlocal indentexpr=GetEtermIndent()
setlocal indentkeys=!^F,o,O,=end
setlocal nosmartindent

let b:undo_indent = "setl inde< indk< si<"

if exists("*GetEtermIndent")
  finish
endif

function GetEtermIndent()
  let lnum = prevnonblank(v:lnum - 1)
  if lnum == 0
    return 0
  endif

  let ind = indent(lnum)

  if getline(lnum) =~ '^\s*begin\>'
    let ind = ind + shiftwidth()
  endif

  if getline(v:lnum) =~ '^\s*end\>'
    let ind = ind - shiftwidth()
  endif

  return ind
endfunction