move formatters into their own namespace

autoload/airline/extensions/tabline.vim

@@ -134,7 +134,7 @@ function! airline#extensions#tabline#title(n)
 endfunction
 
 function! airline#extensions#tabline#get_buffer_name(nr)
-  return airline#extensions#tabline#{s:formatter}#format(a:nr, s:get_buffer_list())
+  return airline#extensions#tabline#formatters#{s:formatter}#format(a:nr, s:get_buffer_list())
 endfunction
 
 function! s:get_buffer_list()

autoload/airline/extensions/tabline/formatters/default.vim

@@ -7,7 +7,7 @@ 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)
+function! airline#extensions#tabline#formatters#default#format(bufnr, buffers)
   let _ = ''
 
   let name = bufname(a:bufnr)
@@ -21,10 +21,10 @@ function! airline#extensions#tabline#default#format(bufnr, buffers)
     endif
   endif
 
-  return airline#extensions#tabline#default#wrap_name(a:bufnr, _)
+  return airline#extensions#tabline#formatters#default#wrap_name(a:bufnr, _)
 endfunction
 
-function! airline#extensions#tabline#default#wrap_name(bufnr, buffer_name)
+function! airline#extensions#tabline#formatters#default#wrap_name(bufnr, buffer_name)
   let _ = s:buf_nr_show ? printf(s:buf_nr_format, a:bufnr) : ''
   let _ .= substitute(a:buffer_name, '\\', '/', 'g')
 

autoload/airline/extensions/tabline/formatters/unique_tail.vim

@@ -1,7 +1,7 @@
 " MIT License. Copyright (c) 2013-2015 Bailey Ling.
 " vim: et ts=2 sts=2 sw=2
 
-function! airline#extensions#tabline#unique_tail#format(bufnr, buffers)
+function! airline#extensions#tabline#formatters#unique_tail#format(bufnr, buffers)
   let duplicates = {}
   let tails = {}
   let map = {}
@@ -15,12 +15,12 @@ function! airline#extensions#tabline#unique_tail#format(bufnr, buffers)
         let duplicates[nr] = nr
       endif
       let tails[tail] = 1
-      let map[nr] = airline#extensions#tabline#default#wrap_name(nr, tail)
+      let map[nr] = airline#extensions#tabline#formatters#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:.'))
+    let map[nr] = airline#extensions#tabline#formatters#default#wrap_name(nr, fnamemodify(bufname(nr), ':p:.'))
   endfor
 
   return map[a:bufnr]

autoload/airline/extensions/tabline/formatters/unique_tail_improved.vim

@@ -5,9 +5,9 @@ scriptencoding utf-8
 
 let s:skip_symbol = '…'
 
-function! airline#extensions#tabline#unique_tail_improved#format(bufnr, buffers)
+function! airline#extensions#tabline#formatters#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#default#format(a:bufnr, a:buffers)
+    return airline#extensions#tabline#formatters#default#format(a:bufnr, a:buffers)
   endif
 
   let curbuf_tail = fnamemodify(bufname(a:bufnr), ':t')
@@ -84,8 +84,8 @@ function! airline#extensions#tabline#unique_tail_improved#format(bufnr, buffers)
       call insert(buf_name, s:skip_symbol)
     endif
 
-    return airline#extensions#tabline#default#wrap_name(a:bufnr, join(buf_name, '/'))
+    return airline#extensions#tabline#formatters#default#wrap_name(a:bufnr, join(buf_name, '/'))
   else
-    return airline#extensions#tabline#default#format(a:bufnr, a:buffers)
+    return airline#extensions#tabline#formatters#default#format(a:bufnr, a:buffers)
   endif
 endfunction