[xml] loader obeying nonet flag again

[Rob Richards <rrichards cdatazone org>]

Ran into another spot where the loader isn't obeying NONET flag.

When parsing with NONET and NOENT flags, xmlParseCtxtExternalEntity gets 
called.
Attached patch has it call the xmlCreateEntityParserCtxtInternal 
function so that the origional context options are inherited.
Outside of that change, by calling xmlCreateEntityParserCtxtInternal, it 
also passes the URL though the xmlBuildURI() function.
If this is going to be an issue for anyone, I can keep current code and 
just have it set old context options; otherwise I'd like to commit this 
asap.

Rob

@@ -12066,31 +12066,15 @@ xmlParseCtxtExternalEntity(xmlParserCtxtPtr ctx, const xmlChar *URL,
     if ((URL == NULL) && (ID == NULL))
        return(-1);
     if (ctx->myDoc == NULL) /* @@ relax but check for dereferences */
        return(-1);
 
-    ctxt = xmlNewParserCtxt();
+    ctxt = xmlCreateEntityParserCtxtInternal(URL, ID, NULL, ctx);
     if (ctxt == NULL) {
        return(-1);
     }
 
-    ctxt->userData = ctxt;
-    ctxt->_private = ctx->_private;
-
-    inputStream = xmlLoadExternalEntity((char *)URL, (char *)ID, ctxt);
-    if (inputStream == NULL) {
-       xmlFreeParserCtxt(ctxt);
-       return(-1);
-    }
-
-    inputPush(ctxt, inputStream);
-
-    if ((ctxt->directory == NULL) && (directory == NULL))
-       directory = xmlParserGetDirectory((char *)URL);
-    if ((ctxt->directory == NULL) && (directory != NULL))
-       ctxt->directory = directory;
-
     oldsax = ctxt->sax;
     ctxt->sax = ctx->sax;
     xmlDetectSAX2(ctxt);
     newDoc = xmlNewDoc(BAD_CAST "1.0");
     if (newDoc == NULL) {