-function! BufTabline()
- redir => bufsRaw
- silent buffers
- redir END
- let bufs = []
- for buf in split(bufsRaw, "\n")[:16]
- let leftIdx = stridx(buf, '"')
- let rightIdx = strridx(buf, '"')
- let filename = buf[leftIdx + 1 : rightIdx - 1]
- let linenum = split(buf[rightIdx:], " ")[-1]
- let attrs = split(buf[:leftIdx-1], '\s\+')
- let attrs = map(attrs, 'substitute(v:val, "%", "%%", "g")')
- let attrs = (len(attrs) == 1) ? attrs[0] : attrs[0] . ":" . join(attrs[1:], "")
- let attrs = "%#TabLine#" . attrs . "%*"
- if len(filename) > 20 | let filename = "<" . filename[-(20-1):] | endif
- let hl = (match(attrs, "%%") == -1) ? "%#TabLine#:" : "%#TabLineSel#"
- let bufs = add(bufs, attrs . hl . filename . ":" . linenum . "%*")
- endfor
- return join(bufs, " ")
-endfunction
-
+if exists("*buftabline#do") | finish | endif
set showtabline=2
-set tabline=%!BufTabline()
+set tabline=%!buftabline#do()