From d33991ae6a733d70e0e9fff9b41ade0bdf7dea32 Mon Sep 17 00:00:00 2001
From: Conrad Irwin <conrad.irwin@gmail.com>
Date: Fri, 2 Dec 2011 00:01:14 -0800
Subject: [PATCH] Be robust to current_prompt not returning a String.

This happened by accident to me and it causes Pry to infiniloop
---
 lib/pry/pry_instance.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/pry/pry_instance.rb b/lib/pry/pry_instance.rb
index 83351dc8..3542aee0 100644
--- a/lib/pry/pry_instance.rb
+++ b/lib/pry/pry_instance.rb
@@ -309,7 +309,7 @@ class Pry
     current_prompt = select_prompt(eval_string, target)
     indentation = Pry.config.auto_indent ? @indent.indent_level : ''
 
-    val = readline(current_prompt + indentation)
+    val = readline("#{current_prompt}#{indentation}")
 
     # invoke handler if we receive EOF character (^D)
     if !val