--- a/pvl/syslog/rule.py	Thu Jan 03 13:06:30 2013 +0200
+++ b/pvl/syslog/rule.py	Thu Jan 03 13:14:29 2013 +0200
@@ -23,6 +23,11 @@
     def apply (self, item) :
         """
             Apply rule against given item.
+
+            Returns
+                None        - skip
+                False       - drop
+                (tag, line) - output
         """
         
         # filter
@@ -51,4 +56,38 @@
         if self.format :
             # return
             return self.tag, self.format.format(**item)
-         
+        
+class SyslogRules (object) :
+    """
+        Apply a set of rules against lines.
+    """
+
+    def __init__ (self, rules) :
+        self.rules = rules
+
+    def apply (self, item) :
+        """
+            Apply item against our rules, returning the first match (False/tag-line).
+        """
+
+        for rule in self.rules :
+            match = rule.apply(item)
+
+            if match is None :
+                continue
+            else :
+                break
+        
+        return match
+
+    def process (self, items) :
+        """
+            Apply items against our rules, yielding any matches.
+        """
+
+        for item in items :
+            match = self.apply(item)
+
+            if match :
+                yield match
+