From 3e08380173db568f6341e8e173e410e5b573c41c Mon Sep 17 00:00:00 2001
From: "Michael D. Lowis" <mike@mdlowis.com>
Date: Sat, 20 May 2017 21:16:57 -0400
Subject: [PATCH] tiny optimization for trimming logic on save

---
 xedit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xedit.c b/xedit.c
index 6f9b796..996b3ae 100644
--- a/xedit.c
+++ b/xedit.c
@@ -128,10 +128,10 @@ static void quit(void) {
 
 static void save(void) {
     Buf* buf = win_buf(EDIT);
-    if (TrimOnSave) {
+    if (TrimOnSave && buf_end(buf) > 0) {
         View* view = win_view(EDIT);
         unsigned off = 0;
-        while (buf_end(buf) && (off < buf_end(buf)-1)) {
+        while (off < buf_end(buf)-1) {
             off = buf_eol(buf, off);
             Rune r = buf_get(buf, off-1);
             for (; (r == ' ' || r == '\t'); r = buf_get(buf, off-1)) {
-- 
2.52.0