list.
 " It uses a self-destroying mapping!
 " 1. use a line in the buffer to convert the 'dots' in the file name to \.
 " 2. store that in register '"'
 " 3. add that name to the Buffers menu list
 " WARNING: this does have some side effects, like overwriting the
 " current register contents and removing any mapping for the "i" command.
 "
 autocmd BufNewFile,BufReadPre * nmap i :nunmap i<CR>O<C-R>%<Esc>:.g/\./s/\./\\./g<CR>0"9y$u:menu Buffers.<C-R>9 :buffer <C-R>%<C-V><CR><CR>
 autocmd BufNewFile,BufReadPre * normal i

Another method, perhaps better, is to use the ":execute" command.  In the
string you can use the <> notation by preceding it with a backslash.  Don't
forget to double the number of existing backslashes and put a backslash before
'"'.
>
  autocmd BufNewFile,BufReadPre * exe "normal O\<C-R>%\<Esc>:.g/\\./s/\\./\\\\./g\<CR>0\"9y$u:menu Buffers.\<C-R>9 :buffer \<C-R>%\<C-V>\<CR>\<CR>"

For a real buffer menu, user functions should be used (see |:function|), but
then the <> notation isn't used, which defeats using it as an example here.

==============================================================================
Highlighting matching parens					*match-parens*

This example shows the use of a few advanced tricks:
- using the |CursorMoved| autocommand event
- using |searchpairpos()| to find a matching paren
- using |synID()| to detect whether the cursor is in a string or comment
- using |:match| to highlight something
- using a |pattern| to match a specific position in the file.

This should be put in a Vim script file, since it uses script-local variables.
It skips matches in strings or comments, unless the cursor started in string
or comment.  This requires syntax highlighting.

A slightly more advanced version is used in the |matchparen| plugin.
>
	let s:paren_hl_on = 0
	function s:Highlight_Matching_Paren()
	  if s:paren_hl_on
	    match none
	    let s:paren_hl_on = 0
	  endif

	  let c_lnum = line('.')
	  let c_col = col('.')

	  let c = getline(c_lnum)[c_col - 1]
	  let plist = split(&matchpairs, ':\|,')
	  let i = index(plist, c)
	  if i < 0
	    return
	  endif
	  if i % 2 == 0
	    let s_flags = 'nW'
	    let c2 = plist[i + 1]
	  else
	    let s_flags = 'nbW'
	    let c2 = c
	    let c = plist[i - 1]
	  endif
	  if c == '['
	    let c = '\['
	    let c2 = '\]'
	  endif
	  let s_skip ='synIDattr(synID(line("."), col("."), 0), "name") ' ..
		\ '=~?	"string\\|comment"'
	  execute 'if' s_skip '| let s_skip = 0 | endif'

	  let [m_lnum, m_col] = searchpairpos(c, '', c2, s_flags, s_skip)

	  if m_lnum > 0 && m_lnum >= line('w0') && m_lnum <= line('w$')
	    exe 'match Search /\(\%' .. c_lnum .. 'l\%' .. c_col ..
		  \ 'c\)\|\(\%' .. m_lnum .. 'l\%' .. m_col .. 'c\)/'
	    let s:paren_hl_on = 1
	  endif
	endfunction

	autocmd CursorMoved,CursorMovedI * call s:Highlight_Matching_Paren()
	autocmd InsertEnter * match none
<

==============================================================================
Opening help in the current window				*help-curwin*

By default, help is displayed in a split window.  If you prefer it opens in
the current window, try this custom `:HelpCurwin` command:
>
	command -bar -nargs=? -complete=help HelpCurwin execute s:HelpCurwin(<q-args>)
	let s:did_open_help = v:false

	function s:HelpCurwin(subject) abort
	  let mods = 'silent noautocmd keepalt'
	  if !s:did_open_help
	    execute mods .. ' help'
	    execute mods .. ' helpclose'
	    let s:did_open_help = v:true
	  endif
	  if !empty(getcompletion(a:subject, 'help'))
	    execute mods .. ' edit ' .. &helpfile
	    set buftype=help
	  endif
	  return 'help ' .. a:subject
	endfunction
<


 vim:tw=78:ts=8:noet:ft=help:norl: