Recurrence rules BY* validations

allenporter / ical

iCalendar rfc 2445 implementation

https://allenporter.github.io/ical/

Apache License 2.0

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Recurrence rules BY* validations #80

Open allenporter opened 2 years ago

allenporter commented 2 years ago

Is your feature request related to a problem? Please describe. Need to enforce constraints on the BY* fields for recurrence rules.

Describe the solution you'd like Add pydantic validations to enforce the #s used (e.g. month is between 1 and 12, day of month is between 1 and 31, etc)

allenporter commented 2 years ago

Another example:

The BYDAY rule part MUST NOT be specified with a numeric value when the FREQ rule part is not set to MONTHLY or YEARLY. Furthermore, the BYDAY rule part MUST NOT be specified with a numeric value with the FREQ rule part set to YEARLY when the BYWEEKNO rule part is specified.