from
Parses an iCalendar resource and applies ICalPreprocessor to increase compatibility.
Return
parsed iCalendar resource
Parameters
reader
where the iCalendar is taken from
properties
Known iCalendar properties (like CALENDAR_NAME) will be put into this map. Key: property name; value: property value
Throws
Parser
when the iCalendar can't be parsed
when the iCalendar resource contains an invalid value