From aa9ed7db496e1e26f67e8f8acb0f419be1dfc4a5 Mon Sep 17 00:00:00 2001
From: Saeed Rasooli <saeedgnu@riseup.net>
Date: Mon, 2 Oct 2017 14:46:29 +0800
Subject: [PATCH] NewEx: fix panic if cfg.Painter is not given (#129)

---
 readline.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/readline.go b/readline.go
index b654d44..b8ef811 100644
--- a/readline.go
+++ b/readline.go
@@ -161,6 +161,9 @@ func NewEx(cfg *Config) (*Instance, error) {
 		return nil, err
 	}
 	rl := t.Readline()
+	if cfg.Painter == nil {
+		cfg.Painter = &defaultPainter{}
+	}
 	return &Instance{
 		Config:    cfg,
 		Terminal:  t,