Added a Regexp type.

src/registry.py

@@ -212,6 +212,29 @@ class StringWithSpaceOnRight(String):
             v += ' '
         String.setValue(self, v)
 
+class Regexp(Value):
+    def set(self, s):
+        try:
+            if s:
+                self.value = utils.perlReToPythonRe(s)
+            else:
+                self.value = None
+            self.sr = s
+        except ValueError, e:
+            raise InvalidRegistryValue, 'Value must be a valid regexp: %s' % e
+
+    def setValue(self, v):
+        if v is None:
+            self.sr = ''
+            self.value = None
+        else:
+            raise InvalidRegistryValue, \
+                  'Can\'t set to a regexp, there would be an inconsistency ' \
+                  'between the regexp and the recorded string value.'
+
+    def __str__(self):
+        return self.sr
+        
 class SeparatedListOf(Value):
     Value = Value
     def splitter(self, s):

test/test_registry.py

@@ -31,6 +31,8 @@
 
 from testsupport import *
 
+import re
+
 import conf
 import registry
 
@@ -120,5 +122,15 @@ class ValuesTestCase(unittest.TestCase):
         v.set('foo,bar')
         self.assertEqual(v(), ['foo', 'bar'])
 
+    def testRegexp(self):
+        v = registry.Regexp(None, 'help')
+        self.assertEqual(v(), None)
+        v.set('m/foo/')
+        self.failUnless(v().match('foo'))
+        v.set('')
+        self.assertEqual(v(), None)
+        self.assertRaises(registry.InvalidRegistryValue,
+                          v.setValue, re.compile(r'foo'))
+        
 
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