From 6b0d922643f33c73e7e4f02ff643a88a3a2f8470 Mon Sep 17 00:00:00 2001
From: "rbs%maths.uq.edu.au" <rbs%maths.uq.edu.au>
Date: Tue, 9 Apr 2002 04:12:01 +0000
Subject: [PATCH] Fix dataloss bug 134298: SaveAs leaves private -moz
 attributes in the output; patch=heikki, r=rbs, sr=jst, a=asa

---
 content/base/src/nsXMLContentSerializer.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/content/base/src/nsXMLContentSerializer.cpp b/content/base/src/nsXMLContentSerializer.cpp
index a3c08442d8b..5e9c8c1b995 100644
--- a/content/base/src/nsXMLContentSerializer.cpp
+++ b/content/base/src/nsXMLContentSerializer.cpp
@@ -485,6 +485,7 @@ nsXMLContentSerializer::AppendElementStart(nsIDOMElement *aElement,
                            namespaceID,
                            *getter_AddRefs(attrName),
                            *getter_AddRefs(attrPrefix));
+
     if (attrPrefix) {
       attrPrefix->ToString(prefixStr);
     }
@@ -500,7 +501,13 @@ nsXMLContentSerializer::AppendElementStart(nsIDOMElement *aElement,
     
     content->GetAttr(namespaceID, attrName, valueStr);
     attrName->ToString(nameStr);
-    
+
+    // XXX Hack to get around the fact that MathML can add
+    //     attributes starting with '-', which makes them
+    //     invalid XML.
+    if (!nameStr.IsEmpty() && nameStr.First() == '-')
+      continue;
+
     SerializeAttr(prefixStr, nameStr, valueStr, aStr, PR_TRUE);
     
     if (addNSAttr) {