From a13130946644a757c2b8847863fd5e3662c07358 Mon Sep 17 00:00:00 2001
From: Tom McDonald <tommcdo@gmail.com>
Date: Sat, 1 Aug 2015 15:42:45 -0400
Subject: [PATCH] Refactor user setting lookups

---
 plugin/exchange.vim | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/plugin/exchange.vim b/plugin/exchange.vim
index b4fe1db..e39bb5a 100644
--- a/plugin/exchange.vim
+++ b/plugin/exchange.vim
@@ -8,9 +8,8 @@ function! s:exchange(x, y, reverse, expand)
 	let selection = &selection
 	set selection=inclusive
 
-	let indent = (exists("b:exchange_indent") ? (b:exchange_indent !~ 0) :
-		\ (exists("g:exchange_indent") && (g:exchange_indent !~ 0)))
-		\ && a:x.type==# 'V' && a:y.type ==# 'V'
+	let indent = s:get_setting('exchange_indent', 0) != 0 && a:x.type ==# 'V' && a:y.type ==# 'V'
+
 	if indent
 		let xindent = matchstr(getline(nextnonblank(a:y.start.line)), '^\s*')
 		let yindent = matchstr(getline(nextnonblank(a:x.start.line)), '^\s*')
@@ -67,7 +66,7 @@ function! s:fix_cursor(x, y, reverse)
 endfunction
 
 function! s:reindent(start, lines, new_indent)
-	if (exists('b:exchange_indent') ? b:exchange_indent : g:exchange_indent) == '=='
+	if s:get_setting('exchange_indent', 0) == '=='
 		let lnum = nextnonblank(a:start)
 		let line = getline(lnum)
 		execute "silent normal! " . lnum . "G=="
@@ -317,6 +316,10 @@ function! s:create_map(mode, lhs, rhs)
 	endif
 endfunction
 
+function! s:get_setting(setting, default)
+	return get(b:, a:setting, get(g:, a:setting, a:default))
+endfunction
+
 highlight default link ExchangeRegion IncSearch
 
 nnoremap <silent> <Plug>(Exchange) :<C-u>set operatorfunc=<SID>exchange_set<CR>g@