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vim-patch:8.0.1547: undo in the options window makes it empty

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Problem:    Undo in the options window makes it empty.
Solution:   Set 'undolevels' while filling the buffer. (Yasuhiro Matthew,
            closes vim/vim#2645)
9c474b2773
This commit is contained in:
Jan Edmund Lazo 2018-10-12 21:50:33 -04:00
parent f4e2df4527
commit 3736f14896
1 changed files with 7 additions and 4 deletions
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11
runtime/optwin.vim
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@ -1,7 +1,7 @@
" These commands create the option window.
"
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last Change: 2017 Oct 19
" Last Change: 2018 Feb 27
" If there already is an option window, jump to that one.
let buf = bufnr('option-window')
@ -122,11 +122,13 @@ fun! <SID>Update(lnum, line, local, thiswin)
endfun
" Reset 'title' and 'icon' to make it work faster.
" Reset 'undolevels' to avoid undo'ing until the buffer is empty.
let s:old_title = &title
let s:old_icon = &icon
let s:old_sc = &sc
let s:old_ru = &ru
set notitle noicon nosc noru
let s:old_ul = &ul
set notitle noicon nosc noru ul=-1
" If the current window is a help window, try finding a non-help window.
" Relies on syntax highlighting to be switched on.
@ -714,7 +716,7 @@ call <SID>OptionG("km", &km)
call <SID>Header("editing text")
call append("$", "undolevels\tmaximum number of changes that can be undone")
call append("$", "\t(global or local to buffer)")
call append("$", " \tset ul=" . &ul)
call append("$", " \tset ul=" . s:old_ul)
call append("$", "undofile\tautomatically save and restore undo history")
call <SID>BinOptionG("udf", &udf)
call append("$", "undodir\tlist of directories for undo files")
@ -1319,6 +1321,7 @@ let &icon = s:old_icon
let &ru = s:old_ru
let &sc = s:old_sc
let &cpo = s:cpo_save
unlet s:old_title s:old_icon s:old_ru s:old_sc s:cpo_save s:idx s:lnum
let &ul = s:old_ul
unlet s:old_title s:old_icon s:old_ru s:old_sc s:cpo_save s:idx s:lnum s:old_ul
" vim: ts=8 sw=2 sts=2