docs updated, formatters moved to separate filenames

autoload/airline/extensions/tabline.vim

@@ -104,7 +104,7 @@ function! airline#extensions#tabline#title(n)
 endfunction
 
 function! airline#extensions#tabline#get_buffer_name(nr)
-  return airline#extensions#tabline#formatters#{s:formatter}(a:nr, get(s:, 'current_buffer_list', s:get_buffer_list()))
+  return airline#extensions#tabline#{s:formatter}#format(a:nr, get(s:, 'current_buffer_list', s:get_buffer_list()))
 endfunction
 
 function! s:get_buffer_list()

autoload/airline/extensions/tabline/default.vim

@@ -0,0 +1,35 @@
+" MIT License. Copyright (c) 2013 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+
+let s:fmod = get(g:, 'airline#extensions#tabline#fnamemod', ':~:.')
+let s:fnamecollapse = get(g:, 'airline#extensions#tabline#fnamecollapse', 1)
+let s:buf_nr_format = get(g:, 'airline#extensions#tabline#buffer_nr_format', '%s: ')
+let s:buf_nr_show = get(g:, 'airline#extensions#tabline#buffer_nr_show', 0)
+let s:buf_modified_symbol = g:airline_symbols.modified
+
+function! airline#extensions#tabline#default#format(bufnr, buffers)
+  let _ = ''
+
+  let name = bufname(a:bufnr)
+  if empty(name)
+    let _ .= '[No Name]'
+  else
+    if s:fnamecollapse
+      let _ .= substitute(fnamemodify(name, s:fmod), '\v\w\zs.{-}\ze(\\|/)', '', 'g')
+    else
+      let _ .= fnamemodify(name, s:fmod)
+    endif
+  endif
+
+  return airline#extensions#tabline#default#wrap_name(a:bufnr, _)
+endfunction
+
+function! airline#extensions#tabline#default#wrap_name(bufnr, buffer_name)
+  let _ = s:buf_nr_show ? printf(s:buf_nr_format, a:bufnr) : ''
+  let _ .= substitute(a:buffer_name, '\\', '/', 'g')
+
+  if getbufvar(a:bufnr, '&modified') == 1
+    let _ .= s:buf_modified_symbol
+  endif
+  return _
+endfunction

autoload/airline/extensions/tabline/unique_tail.vim

@@ -0,0 +1,27 @@
+" MIT License. Copyright (c) 2013 Bailey Ling.
+" vim: et ts=2 sts=2 sw=2
+
+function! airline#extensions#tabline#unique_tail#format(bufnr, buffers)
+  let duplicates = {}
+  let tails = {}
+  let map = {}
+  for nr in a:buffers
+    let name = bufname(nr)
+    if empty(name)
+      let map[nr] = '[No Name]'
+    else
+      let tail = fnamemodify(name, ':t')
+      if has_key(tails, tail)
+        let duplicates[nr] = nr
+      endif
+      let tails[tail] = 1
+      let map[nr] = airline#extensions#tabline#default#wrap_name(nr, tail)
+    endif
+  endfor
+
+  for nr in values(duplicates)
+    let map[nr] = airline#extensions#tabline#default#wrap_name(nr, fnamemodify(bufname(nr), ':p:.'))
+  endfor
+
+  return map[a:bufnr]
+endfunction

autoload/airline/extensions/tabline/unique_tail_improved.vim

@@ -1,57 +1,11 @@
 " MIT License. Copyright (c) 2013 Bailey Ling.
 " vim: et ts=2 sts=2 sw=2
 
-let s:fmod = get(g:, 'airline#extensions#tabline#fnamemod', ':~:.')
-let s:fnamecollapse = get(g:, 'airline#extensions#tabline#fnamecollapse', 1)
-let s:buf_nr_format = get(g:, 'airline#extensions#tabline#buffer_nr_format', '%s: ')
-let s:buf_nr_show = get(g:, 'airline#extensions#tabline#buffer_nr_show', 0)
-let s:buf_modified_symbol = g:airline_symbols.modified
+let s:skip_symbol = '…'
 
-function! airline#extensions#tabline#formatters#default(bufnr, buffers)
-  let _ = ''
-
-  let name = bufname(a:bufnr)
-  if empty(name)
-    let _ .= '[No Name]'
-  else
-    if s:fnamecollapse
-      let _ .= substitute(fnamemodify(name, s:fmod), '\v\w\zs.{-}\ze(\\|/)', '', 'g')
-    else
-      let _ .= fnamemodify(name, s:fmod)
-    endif
-  endif
-
-  return s:wrap_name(a:bufnr, _)
-endfunction
-
-function! airline#extensions#tabline#formatters#unique_tail(bufnr, buffers)
-  let duplicates = {}
-  let tails = {}
-  let map = {}
-  for nr in a:buffers
-    let name = bufname(nr)
-    if empty(name)
-      let map[nr] = '[No Name]'
-    else
-      let tail = fnamemodify(name, ':t')
-      if has_key(tails, tail)
-        let duplicates[nr] = nr
-      endif
-      let tails[tail] = 1
-      let map[nr] = s:wrap_name(nr, tail)
-    endif
-  endfor
-
-  for nr in values(duplicates)
-    let map[nr] = s:wrap_name(nr, fnamemodify(bufname(nr), ':p:.'))
-  endfor
-
-  return map[a:bufnr]
-endfunction
-
-function! airline#extensions#tabline#formatters#unique_tail_improved(bufnr, buffers)
+function! airline#extensions#tabline#unique_tail_improved#format(bufnr, buffers)
   if len(a:buffers) <= 1 " don't need to compare bufnames if has less than one buffer opened
-    return airline#extensions#tabline#formatters#default(a:bufnr, a:buffers)
+    return airline#extensions#tabline#default#format(a:bufnr, a:buffers)
   endif
 
   let curbuf_tail = fnamemodify(bufname(a:bufnr), ':t')
@@ -95,16 +49,15 @@ function! airline#extensions#tabline#formatters#unique_tail_improved(bufnr, buff
     let buf_name = [curbuf_tail]
     let has_uniq = 0
     let has_skipped = 0
-    let skip_symbol = '…'
     for token1 in reverse(path)
       if !token1['duplicated'] && len(buf_name) > 1
-        call insert(buf_name, skip_symbol)
+        call insert(buf_name, s:skip_symbol)
         let has_skipped = 0
         break
       endif
 
       if has_uniq == 1
-        call insert(buf_name, skip_symbol)
+        call insert(buf_name, s:skip_symbol)
         let has_skipped = 0
         break
       endif
@@ -113,7 +66,7 @@ function! airline#extensions#tabline#formatters#unique_tail_improved(bufnr, buff
         let has_skipped = 1
       else
         if has_skipped == 1
-          call insert(buf_name, skip_symbol)
+          call insert(buf_name, s:skip_symbol)
           let has_skipped = 0
         endif
         call insert(buf_name, token1['token'])
@@ -125,21 +78,11 @@ function! airline#extensions#tabline#formatters#unique_tail_improved(bufnr, buff
     endfor
 
     if has_skipped == 1
-      call insert(buf_name, skip_symbol)
+      call insert(buf_name, s:skip_symbol)
     endif
 
-    return s:wrap_name(a:bufnr, join(buf_name, '/'))
+    return airline#extensions#tabline#default#wrap_name(a:bufnr, join(buf_name, '/'))
   else
-    return airline#extensions#tabline#formatters#default(a:bufnr, a:buffers)
+    return airline#extensions#tabline#default#format(a:bufnr, a:buffers)
   endif
 endfunction
-
-function! s:wrap_name(bufnr, buffer_name)
-  let _ = s:buf_nr_show ? printf(s:buf_nr_format, a:bufnr) : ''
-  let _ .= substitute(a:buffer_name, '\\', '/', 'g')
-
-  if getbufvar(a:bufnr, '&modified') == 1
-    let _ .= s:buf_modified_symbol
-  endif
-  return _
-endfunction

doc/airline.txt

@@ -379,11 +379,14 @@ eclim <https://eclim.org>
   let g:airline#extensions#tabline#tab_nr_type = 0 " # of splits (default)
   let g:airline#extensions#tabline#tab_nr_type = 1 " tab number
 <
+* enable/disable displaying tab number in tabs mode. >
+  let g:airline#extensions#tabline#show_tab_nr = 1
+
 * defines the name of a formatter for how buffer names are displayed. >
   let g:airline#extensions#tabline#formatter = 'default'
 
   " here is how you can define a 'foo' formatter:
-  function! airline#extensions#tabline#formatters#foo(bufnr, buffers)
+  function! airline#extensions#tabline#foo#format(bufnr, buffers)
     return fnamemodify(bufname(a:bufnr), ':t')
   endfunction
   let g:airline#extensions#tabline#formatter = 'foo'
@@ -406,6 +409,10 @@ eclim <https://eclim.org>
   " there is another file of the same name, in which it will display it along
   " with the containing parent directory.
   let g:airline#extensions#tabline#formatter = 'unique_tail'
+
+  The `unique_tail_improved` - another algorithm, that will smartly uniqualise
+  buffers names with similar filename, suppressing common parts of paths.
+  let g:airline#extensions#tabline#formatter = 'unique_tail_improved'
 <
 * configure the minimum number of buffers needed to show the tabline. >
   let g:airline#extensions#tabline#buffer_min_count = 0