Enhancement - Filters

- Filter implemented.
- Unit tests started, need more as Att::match matures.

src/Filter.cpp

@@ -26,45 +26,21 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include "Filter.h"
+#include "util.h"
 
 ////////////////////////////////////////////////////////////////////////////////
-Filter::Filter ()
+// For every Att in the filter, lookup the equivalent in Record, and perform a
+// match.  Aren't filters easy now that everything is an attribute?
+bool Filter::pass (const Record& record) const
 {
-}
+  Record::const_iterator r;
 
-////////////////////////////////////////////////////////////////////////////////
-Filter::Filter (const Filter& other)
-{
-  throw std::string ("unimplemented Filter::Filter");
-  *this = other;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-Filter& Filter::operator= (const Filter& other)
-{
-  throw std::string ("unimplemented Filter::operator=");
-  if (this != &other)
-  {
-    *this = other;
-  }
-
-  return *this;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-Filter::~Filter ()
-{
-}
-
-////////////////////////////////////////////////////////////////////////////////
-bool Filter::pass (Record& record)
-{
-  throw std::string ("unimplemented Filter::pass");
-/*
+  // If record doesn't have the attribute, fail.  If it does have the attribute
+  // but it doesn't match, fail.
   foreach (att, (*this))
-    if (! att->match (record))
-      return false;
-*/
+    if ((r = record.find (att->name ())) == record.end () ||
+        ! att->match (r->second))
+        return false;
 
   return true;
 }