From 409e8b0cbd91285cabbac72a58b258b1beb73da5 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <cb@256bit.org>
Date: Sat, 2 Jul 2016 09:49:05 +0200
Subject: [PATCH] refactor shortening code

---
 autoload/airline/extensions/branch.vim     | 4 +---
 autoload/airline/extensions/whitespace.vim | 7 +------
 autoload/airline/util.vim                  | 8 ++++++++
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/autoload/airline/extensions/branch.vim b/autoload/airline/extensions/branch.vim
index 83763fd..d34cd23 100644
--- a/autoload/airline/extensions/branch.vim
+++ b/autoload/airline/extensions/branch.vim
@@ -162,9 +162,7 @@ function! airline#extensions#branch#head()
   if empty(b:airline_head) || !found_fugitive_head && !s:check_in_path()
     let b:airline_head = ''
   endif
-  if winwidth(0) < 120 && len(split(b:airline_head, '\zs')) > 9
-    let b:airline_head =  matchstr(b:airline_head, '^.\{9\}').'…'
-  endif
+  let b:airline_head = airline#util#shorten(b:airline_head, 120, 9)
   return b:airline_head
 endfunction
 
diff --git a/autoload/airline/extensions/whitespace.vim b/autoload/airline/extensions/whitespace.vim
index 825ee50..1546079 100644
--- a/autoload/airline/extensions/whitespace.vim
+++ b/autoload/airline/extensions/whitespace.vim
@@ -106,12 +106,7 @@ function! airline#extensions#whitespace#check()
       endif
     endif
   endif
-  if winwidth(0) < 120 && len(split(b:airline_whitespace_check, '\zs')) > 9
-    return matchstr(b:airline_whitespace_check, '^.\{9\}').'…'
-  else
-    return b:airline_whitespace_check
-  endif
-
+  return airline#util#shorten(b:airline_whitespace_check, 120, 9)
 endfunction
 
 function! airline#extensions#whitespace#toggle()
diff --git a/autoload/airline/util.vim b/autoload/airline/util.vim
index f452551..157060f 100644
--- a/autoload/airline/util.vim
+++ b/autoload/airline/util.vim
@@ -4,6 +4,14 @@
 call airline#init#bootstrap()
 let s:spc = g:airline_symbols.space
 
+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.'}').'…'
+  else
+    return a:text
+  endif
+endfunction
+
 function! airline#util#wrap(text, minwidth)
   if a:minwidth > 0 && winwidth(0) < a:minwidth
     return ''