The ExICalendar library supports the iCalendar data format as defined by RFC 5545 - Internet Calendaring and Scheduling Core Object Specification. It facilitates the exchange of scheduling information - such as events, tasks (to-dos), journal entries, and availability (free/busy) - independent of any specific calendar service or communication protocol. Designed as a MIME content type, the iCalendar format ensures broad compatibility and can be transferred via various channels including email (SMTP), web (HTTP), file systems, drag-and-drop, clipboard operations, or other asynchronous mechanisms. The ExICalendar library adds full ICS functionality to components like eXCalendar, eXGantt, eXG2antt, eXSchedule, and more.

Features include:

1. iCalendar Data Access

• Easy access to components, properties, and parameters of iCalendar data

2. Data Handling

• Load/save data from strings or files
• Encode/decode properties from/to VARIANT expressions
• Encode/decode complex properties (e.g., Recur, Period, Duration)

3. Recurrence Evaluation

• Evaluate recurrence (RRULE) patterns
• Enumerate all occurrences generated by recurrence rules

4. Scripting Support

• Template/X-Script integration for automation or customization

 

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