From a950a2938a6b0a9b1908b899173fe74efdc66776 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <cb@256bit.org>
Date: Tue, 2 May 2017 21:22:47 +0200
Subject: [PATCH] shorten tagbar extension on short windows

---
 autoload/airline/util.vim | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/autoload/airline/util.vim b/autoload/airline/util.vim
index ef11cbe..4246ccd 100644
--- a/autoload/airline/util.vim
+++ b/autoload/airline/util.vim
@@ -6,9 +6,15 @@ scriptencoding utf-8
 call airline#init#bootstrap()
 let s:spc = g:airline_symbols.space
 
-function! airline#util#shorten(text, winwidth, minwidth)
+function! airline#util#shorten(text, winwidth, minwidth, ...)
   if winwidth(0) < a:winwidth && len(split(a:text, '\zs')) > a:minwidth
-    return matchstr(a:text, '^.\{'.a:minwidth.'}').'…'
+    if get(a:000, 0, 0)
+      " shorten from tail
+      return '…'.matchstr(a:text, '.\{'.a:minwidth.'}$')
+    else
+      " shorten from beginning of string
+      return matchstr(a:text, '^.\{'.a:minwidth.'}').'…'
+    endif
   else
     return a:text
   endif