support for parsing rrules from ical that are very long and wrap

Author: nehresma

lib/ice_cube/parsers/ical_parser.rb

@@ -2,7 +2,18 @@ module IceCube
   class IcalParser
     def self.schedule_from_ical(ical_string, options = {})
       data = {}
+
+      # First join lines that are wrapped
+      lines = []
       ical_string.each_line do |line|
+        if lines[-1] && line =~ /\A[ \t].+\z/
+          lines[-1] = lines[-1].strip + line.sub(/\A[ \t]+/, "")
+        else
+          lines << line
+        end
+      end
+
+      lines.each do |line|
         (property, value) = line.split(":")
         (property, _tzid) = property.split(";")
         case property

spec/examples/from_ical_spec.rb

@@ -448,5 +448,13 @@ def sorted_ical(ical)
         it_behaves_like "an invalid ical string"
       end
     end
+
+    describe "ical data with wrapping" do
+      it "matches simple daily" do
+        ical_string = "DTSTART:20130314T201500Z\nDTEND:20130314T201545Z\nRRULE:FREQ=WEEKLY;BYDAY=TH;UNT\n  IL=20130531T100000Z"
+        schedule = IceCube::Schedule.from_ical(ical_string)
+        expect(schedule.to_ical.split(/\n/).select {|x| x =~ /RRULE/}.first).to eq("RRULE:FREQ=WEEKLY;UNTIL=20130531T100000Z;BYDAY=TH")
+      end
+    end
   end
 end