Revert 100883 - Desist libxml from continuing the parse after a SAX callback has stopped the

third_party/libxml/src/parser.c

Index: third_party/libxml/src/parser.c
===================================================================
--- third_party/libxml/src/parser.c	(revision 100883)
+++ third_party/libxml/src/parser.c	(working copy)
@@ -4827,8 +4827,7 @@
 		    (ctxt->sax->processingInstruction != NULL))
 		    ctxt->sax->processingInstruction(ctxt->userData,
 		                                     target, NULL);
-		if (ctxt->instate != XML_PARSER_EOF)
-		    ctxt->instate = state;
+		ctxt->instate = state;
 		return;
 	    }
 	    buf = (xmlChar *) xmlMallocAtomic(size * sizeof(xmlChar));
@@ -4908,8 +4907,7 @@
 	} else {
 	    xmlFatalErr(ctxt, XML_ERR_PI_NOT_STARTED, NULL);
 	}
-	if (ctxt->instate != XML_PARSER_EOF)
-	    ctxt->instate = state;
+	ctxt->instate = state;
     }
 }
 
@@ -9468,8 +9466,6 @@
     else
 	name = xmlParseStartTag(ctxt);
 #endif /* LIBXML_SAX1_ENABLED */
-    if (ctxt->instate == XML_PARSER_EOF)
-	return;
     if (name == NULL) {
 	spacePop(ctxt);
         return;
@@ -10849,8 +10845,6 @@
 		else
 		    name = xmlParseStartTag(ctxt);
 #endif /* LIBXML_SAX1_ENABLED */
-		if (ctxt->instate == XML_PARSER_EOF)
-		    return;
 		if (name == NULL) {
 		    spacePop(ctxt);
 		    ctxt->instate = XML_PARSER_EOF;
@@ -11037,9 +11031,7 @@
 		  else
 		    xmlParseEndTag1(ctxt, 0);
 #endif /* LIBXML_SAX1_ENABLED */
-		if (ctxt->instate == XML_PARSER_EOF) {
-		    /* Nothing */
-		} else if (ctxt->nameNr == 0) {
+		if (ctxt->nameNr == 0) {
 		    ctxt->instate = XML_PARSER_EPILOG;
 		} else {
 		    ctxt->instate = XML_PARSER_CONTENT;