Module schedule 

Validation of AWS::Events::Rule ScheduleExpression values (rate(...) / cron(...)).

The service accepts a rate(Value Unit) where Value is a positive integer and Unit agrees in number with it (minute/hour/day when the value is 1, plural otherwise), or a cron(...) of exactly six space-separated fields that does not pin both day-of-month and day-of-week. Each returned string is a complete, human-readable reason a value is invalid.

Functions

schedule_expression_errors

Return every reason expression is an invalid ScheduleExpression, or an empty vector when it is valid. More than one reason can apply at once (e.g. a zero value with a mismatched unit).