Beginnings of Lauds support

src/officium/calendar.py

@@ -726,8 +726,7 @@ def offices(self, date):
 
         return OrderedDict([
             ('lauds', [cls(date, self._data_map, self._index, self, season,
-                           season_keys, doxology, lauds_office, today,
-                           today[1:])
+                           season_keys, doxology, lauds_office, today[1:])
                        for (cls, lauds_office) in zip(lauds_classes,
                                                       lauds_offices)]),
             ('vespers', [cls(date, self._data_map, self._index, self, season,

src/officium/lauds.py

@@ -1,11 +1,23 @@
 from . import psalmish
-
 # XXX!  Most of vespers.py should become a common module.
-from .vespers import Vespers
-class Lauds(Vespers):
-    def __init__(self, *args):
-        args = list(args)
-        super().__init__(*args[:-1], concurring=[], commemorations=args[-1])
+from .vespers import LaudsAndVespers
+
+
+class Lauds(LaudsAndVespers):
+    def lookup(self, office, *items, **kwargs):
+        bases = [
+            ['ad-laudes'],
+        ]
+        return super().lookup(office, bases, *items, **kwargs)
+
+    @property
+    def gospel_canticle_path(self):
+        # XXX: Slashes.
+        return 'ad-laudes/benedictus'
+
+    def have_ferial_preces(self):
+        return self._calendar_resolver.has_ferial_preces(self._office,
+                                                         self._date)
 
 
 class EasterOctaveLauds(Lauds):

src/officium/vespers.py

@@ -112,6 +112,9 @@ def lookup(self, office, bases, *items, **kwargs):
             )
         )
 
+    def lookup_main(self, *items, **kwargs):
+        return self.lookup(self._office, *items, **kwargs)
+
     def psalmody(self, antiphon_class=parts.Antiphon):
         use_commons = self._calendar_resolver.uses_common_for_psalmody(self._office)
         antiphons = self.lookup_main('antiphonae', use_commons=use_commons)