allow raw cron sytanx

README.md

@@ -37,6 +37,10 @@ This will create an initial "config/schedule.rb" file you.
       runner "Task.do_something_great"
     end
 
+		every '0 0 27-31 * *' do
+			command "echo 'you can use raw cron sytax too'"
+		end
+
 More examples on the wiki: <http://wiki.github.com/javan/whenever/instructions-and-examples>
 
 ### Define your own job types

lib/whenever/cron.rb

@@ -34,6 +34,7 @@ module Whenever
 
       def time_in_cron_syntax
         case @time
+          when /^.+ .+ .+ .+ .+.?$/ then @time # raw cron sytax given
           when Symbol then parse_symbol
           when String then parse_as_string
           else parse_time

test/functional/output_at_test.rb

@@ -248,4 +248,21 @@ class OutputAtTest < Test::Unit::TestCase
       assert_match '27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 * * * * blahblah', @output
     end
   end
+  
+  context "using raw cron syntax" do
+    setup do
+      @output = Whenever.cron \
+      <<-file
+        set :job_template, nil
+        every '0 0 27-31 * *' do
+          command "blahblah"
+        end
+      file
+    end
+    
+    should "output the command using the same cron syntax" do
+      assert_match '0 0 27-31 * * blahblah', @output
+    end
+  end
+  
 end

test/unit/cron_test.rb

@@ -200,6 +200,15 @@ class CronTest < Test::Unit::TestCase
     end
   end
   
+  context "When given raw cron sytax" do
+    should "return the same cron sytax" do
+      crons = ['0 0 27-31 * *', '* * * * *', '2/3 1,9,22 11-26 1-6 *']
+      crons.each do |cron|
+        assert_equal cron, parse_time(cron)
+      end
+    end
+  end
+
 private
 
   def assert_days_and_hours_and_minutes_equals(expected, time)