From f66cb47d291c0d8e0ee1e78a92143e54155cfa05 Mon Sep 17 00:00:00 2001
From: Bailey Ling <bling@live.ca>
Date: Tue, 13 Aug 2013 21:52:31 -0400
Subject: [PATCH] fix up csv integration so it only applies to csv filetypes

---
 autoload/airline/extensions/csv.vim | 16 +++++++++-------
 doc/airline.txt                     |  2 +-
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/autoload/airline/extensions/csv.vim b/autoload/airline/extensions/csv.vim
index 57df1a5b..baa0c6e0 100644
--- a/autoload/airline/extensions/csv.vim
+++ b/autoload/airline/extensions/csv.vim
@@ -1,20 +1,22 @@
 " MIT license. Copyright (c) 2013 Bailey Ling.
 " vim: ts=2 sts=2 sw=2 fdm=indent
 
-function! airline#extensions#csv#get_statusline()
+function! airline#extensions#csv#apply()
   if &ft ==# "csv" && exists("*CSV_WCol")
     if get(g:, 'airline#extensions#csv#column_identify', '') ==# 'Name'
-      return '['.CSV_WCol('Name').CSV_WCol().']'
+      let column = '['.CSV_WCol('Name').CSV_WCol().']'
     else
-      return '['.CSV_WCol().']'
+      let column = '['.CSV_WCol().']'
     endif
-  else
-    return ''
+
+    if !exists('w:airline_section_gutter')
+      let w:airline_section_gutter = ''
+    endif
+    let w:airline_section_gutter .= g:airline_left_alt_sep.' '.column
   endif
 endfunction
 
 function! airline#extensions#csv#init(ext)
-  call a:ext.add_statusline_funcref(function('airline#extensions#csv#get_statusline'))
-  let g:airline_section_c .= ' '.g:airline_left_alt_sep.' %{airline#extensions#csv#get_statusline()}'
+  call a:ext.add_statusline_funcref(function('airline#extensions#csv#apply'))
 endfunction
 
diff --git a/doc/airline.txt b/doc/airline.txt
index f6a8101a..085d435d 100644
--- a/doc/airline.txt
+++ b/doc/airline.txt
@@ -183,7 +183,7 @@ sections which by default host more than one extension.
   let g:airline_section_a       (the mode/paste indicator)
   let g:airline_section_b       (the fugitive/lawrencium branch indicator)
   let g:airline_section_c       (bufferline or filename)
-  let g:airline_section_gutter
+  let g:airline_section_gutter  (csv)
   let g:airline_section_x       (tagbar, filetype)
   let g:airline_section_y       (fileencoding, fileformat)
   let g:airline_section_z       (percentage, line number, column number)