Add list command.

ListCommand.py

+import Command
+import Config
+import Filter
+import Sorter
+
+class ListCommand(Command.Command):
+    def __init__(self, p_args, p_todolist):
+        super(ListCommand, self).__init__(p_args, p_todolist)
+
+    def execute(self):
+        sorter = Sorter.Sorter(Config.SORT_STRING)
+        filters = [Filter.DependencyFilter(self.todolist),
+                   Filter.RelevanceFilter()]
+
+        if len(self.args) > 0:
+            filters.append(Filter.GrepFilter(self.argument(0)))
+
+        print self.todolist.view(sorter, filters).pretty_print() # FIXME
+
+        return True

Main.py

@@ -8,10 +8,9 @@ from AppendCommand import AppendCommand
 from DepCommand import DepCommand
 import Config
 from DoCommand import DoCommand
-import Filter
+from ListCommand import ListCommand
 from PrettyPrinter import pretty_print
 from PriorityCommand import PriorityCommand
-import Sorter
 import TodoFile
 import TodoList
 from Utils import convert_todo_number
@@ -86,14 +85,8 @@ class Application(object): # TODO: rename to CLIApplication
         command.execute()
 
     def list(self):
-        sorter = Sorter.Sorter(Config.SORT_STRING)
-        filters = [Filter.DependencyFilter(self.todolist),
-                   Filter.RelevanceFilter()]
-
-        if len(sys.argv) > 2:
-            filters.append(Filter.GrepFilter(sys.argv[2]))
-
-        print self.todolist.view(sorter, filters).pretty_print()
+        command = ListCommand(arguments(), self.todolist)
+        command.execute()
 
     def run(self):
         """ Main entry function. """