=various edits and improvments

_home/private_dot_config/nvim/init.vim

@@ -1,5 +1,3 @@
-set background=dark
-
 if !has("compatible")
   " Install vim-plug if not found
   let data_dir = has('nvim') ? stdpath('data') . '/site' : '~/.vim'
@@ -21,4 +19,59 @@ if !has("compatible")
   call plug#end()
 endif
 
+" length of an actual \t character:
+set tabstop=4
+" length to use when editing text (eg. TAB and BS keys)
+" (0 for ‘tabstop’, -1 for ‘shiftwidth’):
+set softtabstop=-1
+" length to use when shifting text (eg. <<, >> and == commands)
+" (0 for ‘tabstop’):
+set shiftwidth=0
+" round indentation to multiples of 'shiftwidth' when shifting text
+" (so that it behaves like Ctrl-D / Ctrl-T):
+set shiftround
 
+" if set, only insert spaces; otherwise insert \t and complete with spaces:
+set expandtab
+
+" reproduce the indentation of the previous line:
+set autoindent
+" keep indentation produced by 'autoindent' if leaving the line blank:
+set cpoptions+=I
+" try to be smart (increase the indenting level after ‘{’,
+" decrease it after ‘}’, and so on):
+"set smartindent
+" a stricter alternative which works better for the C language:
+"set cindent
+" use language‐specific plugins for indenting (better):
+filetype plugin indent on
+
+syntax on
+set bg=dark
+set tabpagemax=100
+
+nnoremap j jzz
+nnoremap k kzz
+nnoremap <Down> jzz
+nnoremap <Up> kzz
+
+" highlight Cursor       ctermbg=blue guibg=blue
+" highlight CursorLine   cterm=NONE    ctermbg=grey ctermfg=darkgrey guibg=grey guifg=darkgrey
+" highlight CursorColumn cterm=NONE    ctermbg=darkgrey guibg=darkgrey
+highlight Visual       cterm=reverse ctermbg=NONE
+" nnoremap <Leader>c :set cursorline! cursorcolumn!
+"
+" augroup CourorLine
+"   au!
+"   au VimEnter,WinEnter,BufWinEnter * setlocal cursorcolumn
+"   au VimEnter,WinEnter,BufWinEnter * setlocal cursorline
+"   au WinLeave * setlocal nocursorcolumn
+"   au WinLeave * setlocal nocursorline
+" augroup END
+
+" let &t_ti.="\e[1 q"
+" let &t_SI.="\e[5 q"
+" let &t_EI.="\e[1 q"
+" let &t_te.="\e[0 q"
+
+autocmd FileType yaml setlocal tabstop=2 softtabstop=-1 shiftwidth=0 expandtab