From 5121b5b05886c3667fa8ba738b2f55d138d35490 Mon Sep 17 00:00:00 2001
From: Eric Schmidt <eric41293@comcast.net>
Date: Wed, 20 Apr 2016 21:52:20 -0600
Subject: [PATCH] Put quote marks around printed characters; also nicely print
 some escapes

---
 include/internal/catch_tostring.hpp | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/include/internal/catch_tostring.hpp b/include/internal/catch_tostring.hpp
index 9d11bbb2..1b26358b 100644
--- a/include/internal/catch_tostring.hpp
+++ b/include/internal/catch_tostring.hpp
@@ -146,9 +146,19 @@ std::string toString( bool value ) {
 }
 
 std::string toString( char value ) {
-    return value < ' '
-        ? toString( static_cast<unsigned int>( value ) )
-        : Detail::makeString( value );
+    if ( value == '\r' )
+        return "'\\r'";
+    if ( value == '\l' )
+        return "'\\l'";
+    if ( value == '\n' )
+        return "'\\n'";
+    if ( value == '\t' )
+        return "'\\t'";
+    if ( '\0' <= value && value < ' ' )
+        return toString( static_cast<unsigned int>( value ) );
+    char chstr[] = "' '";
+    chstr[1] = value;
+    return chstr;
 }
 
 std::string toString( signed char value ) {