diff -r ef01c4639689 -r 952ee07efd7a pvl/syslog/parser.py
--- a/pvl/syslog/parser.py	Thu Jan 10 17:50:10 2013 +0200
+++ b/pvl/syslog/parser.py	Thu Jan 10 17:51:53 2013 +0200
@@ -119,12 +119,13 @@
         +   r"(?P<message>(?P<tag>(?P<program>[^:\]]+)(?:\[(?P<pid>\d+)\])?: )?(?P<text>.*))\n?"
     )
 
-    def __init__ (self, raw=False) :
+    def __init__ (self, raw=False, facility=None) :
         """
             Using given underlying line source.
         """
 
         self.raw = raw
+        self.facility = facility
 
     def parse_pri (self, match) :
         """
@@ -132,10 +133,10 @@
         """
 
         pri = match.group('pri')
-        facility = match.group('facility')
+        facility = match.group('facility') or self.facility
         severity = match.group('severity')
         
-        if pri.isdigit() :
+        if pri and pri.isdigit() :
             pri = int(pri)
             facility, severity = divmod(pri, 8)
 
@@ -182,9 +183,6 @@
         # ignore whitespace
         line = line.strip()
 
-        # debug
-        log.debug("%s", line)
-
         # timestamp?
         if self.raw :
             # from defaults
@@ -214,8 +212,7 @@
             )
            
             # facility/severity prefix?
-            if match.group('pri') :
-                item.update(self.parse_pri(match))
+            item.update(self.parse_pri(match))
 
             return item
     
@@ -227,6 +224,8 @@
         for line in lines :
             item = self.parse(line)
 
+            log.debug("%s", item)
+
             if item :
                 yield item