added markings for carriage returns and trailing white spaces

nvim/init.vim

@@ -49,8 +49,11 @@ autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTr
 "set colored brackets via rainbow"
 let g:rainbow_active = 1 "set to 0 if you want to enable it later via :RainbowToggle"
 
-"set indentLine to nvim colorscheme
-"let g:indentLine_setColors = 0
+" set indentLine to nvim colorscheme
+" let g:indentLine_setColors = 0
+
+set listchars=eol:↵,trail:·
+set list
 
 "enable AutoSave on start
 let g:auto_save = 1
@@ -260,6 +263,20 @@ function! s:show_documentation()
   endif
 endfunction
 
+" function to remove trailing white spaces from document, simply type
+" :StripTrailingWhitespace when in Normal mode
+command! -nargs=? -range=% -complete=custom,s:StripCompletionOptions
+      \ StripTrailingWhitespace <line1>,<line2>call s:StripTrailingWhitespace(<f-args>)
+
+function! s:StripTrailingWhitespace(...) abort
+  let confirm = a:0
+  execute a:firstline . ',' . a:lastline . 's/\s\+$//e' . (confirm ? 'c' : '')
+endfunction
+
+function! s:StripCompletionOptions(A,L,P) abort
+  return "-confirm"
+endfunction
+
 " Highlight symbol under cursor on CursorHold
 autocmd CursorHold * silent call CocActionAsync('highlight')