From cb6555b9e249302db4ebfb3bfc6c3f8d1cb66de9 Mon Sep 17 00:00:00 2001
From: Daniele Orlando <dnl.rlnd@gmail.com>
Date: Wed, 1 Jul 2015 00:40:28 +0200
Subject: [PATCH] QLColorCode handles file paths with single quote (').

colorize.sh was failing trying to generate a preview for files with a
single quote in their name (or path).

Example:
The preview command for file "l'altro.sh" was generated like this:
'<path>colorize.sh' '<path>' '<path>/l'altro.sh' '0'
resulting in:
qlmanage[66236]: QLColorCode: colorize.sh failed with exit code 2.
---
 Common.m | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Common.m b/Common.m
index 70e5d8e..335f559 100644
--- a/Common.m
+++ b/Common.m
@@ -64,7 +64,7 @@
     n8log(@"url = %@", url);
     NSString *targetEsc = pathOfURL(url);
     n8log(@"targetEsc = %@", targetEsc);
-    
+
     // Set up preferences
     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
     NSMutableDictionary *env = [NSMutableDictionary dictionaryWithDictionary:
@@ -81,10 +81,16 @@
                                    @"UTF-8", @"textEncoding", 
                                    @"UTF-8", @"webkitTextEncoding", nil]];
     [env addEntriesFromDictionary:[defaults persistentDomainForName:myDomain]];
-    
+
+    NSMutableString *targetEscaped = [NSMutableString stringWithString:targetEsc];
+    [targetEscaped replaceOccurrencesOfString:@"'"
+                   withString:@"'\\''"
+                   options:0
+                   range:NSMakeRange(0, [targetEscaped length])];
+
     NSString *cmd = [NSString stringWithFormat:
                      @"'%@/colorize.sh' '%@' '%@' %s", 
-                     rsrcEsc, rsrcEsc, targetEsc, thumbnail ? "1" : "0"];
+                     rsrcEsc, rsrcEsc, targetEscaped , thumbnail ? "1" : "0"];
     n8log(@"cmd = %@", cmd);
     
     output = runTask(cmd, env, status);