From ab227e12694f7fea3c64d93d87e24f017fca65a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Andr=C3=A9=20Tanner?= <mat@brain-dump.org>
Date: Mon, 27 Oct 2014 12:27:10 +0100
Subject: Fix segfault when joining lines

---
 vis.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vis.c b/vis.c
index f7053aa..4f6ccfb 100644
--- a/vis.c
+++ b/vis.c
@@ -650,7 +650,7 @@ static void op_join(OperatorContext *c) {
 		prev_pos = pos;
 		size_t end = text_line_start(txt, pos);
 		pos = text_char_next(txt, text_line_finish(txt, text_line_prev(txt, end)));
-		if (pos > c->range.start) {
+		if (pos > c->range.start && end > pos) {
 			text_delete(txt, pos, end - pos);
 			text_insert(txt, pos, " ", 1);
 		} else {
-- 
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