From 53498052201579bc9e26ea0e238fba4e263f5a83 Mon Sep 17 00:00:00 2001
From: Jan Steemann <jan@arangodb.com>
Date: Wed, 2 Jan 2013 17:22:08 +0100
Subject: [PATCH] issue #338

---
 arangosh/V8Client/arangosh.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arangosh/V8Client/arangosh.cpp b/arangosh/V8Client/arangosh.cpp
index 1229001ed2..bd80b5b4bf 100644
--- a/arangosh/V8Client/arangosh.cpp
+++ b/arangosh/V8Client/arangosh.cpp
@@ -844,6 +844,12 @@ static void RunShell (v8::Handle<v8::Context> context, bool promptError) {
   string goodPrompt;
   string badPrompt;
   
+#ifdef __APPLE__
+  // MacOS uses libedit, which does not support ignoring of non-printable characters in the prompt
+  // using non-printable characters in the prompt will lead to wrong prompt lengths being calculated
+  // we will therefore disable colorful prompts for MacOS.
+  goodPrompt = badPrompt = string("arangosh> ");
+#else
   if (BaseClient.colors()) {
     goodPrompt = string(ArangoClient::PROMPT_IGNORE_START) + string(ArangoClient::COLOR_BOLD_GREEN) + string(ArangoClient::PROMPT_IGNORE_END) + 
                  string("arangosh>") + 
@@ -858,7 +864,8 @@ static void RunShell (v8::Handle<v8::Context> context, bool promptError) {
   else {
     goodPrompt = badPrompt = string("arangosh> ");
   }
-  
+#endif
+   
   cout << endl;
 
   while (true) {