From 91d69de57f4a35b381117615b83f85603873b748 Mon Sep 17 00:00:00 2001
From: Ben S <ogham@bsago.me>
Date: Tue, 25 Nov 2014 19:44:29 +0000
Subject: [PATCH] Highlight hex literals

---
 rust.mm | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/rust.mm b/rust.mm
index 3360646..854e3de 100644
--- a/rust.mm
+++ b/rust.mm
@@ -178,8 +178,28 @@ SInt32 skipUse(BBLMTextIterator &iter)
 SInt32 skipNumber(BBLMTextIterator &iter)
 {
     UInt32 length = 0;
-    UniChar ch;
+    UniChar ch = iter.GetNextChar();
     bool hasSuffix = false;
+    bool isHex = false;
+    
+    if (ch == '0')
+    {
+        ch = iter.GetNextChar();
+        if (ch == 'x')
+        {
+            isHex = true;
+            length += 2;
+        }
+        else if (ch)
+        {
+            length++;
+            iter--;
+        }
+    }
+    else if (ch)
+    {
+        iter--;
+    }
     
     while ((ch = iter.GetNextChar()))
     {
@@ -187,6 +207,10 @@ SInt32 skipNumber(BBLMTextIterator &iter)
         {
             length++;
         }
+        else if (isHex && ((ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F')))
+        {
+            length++;
+        }
         else if (ch == 'f' || ch == 'u' || ch == 'i')
         {
             hasSuffix = true;