first_day_of_week Returns the first day of a week
package require nstcl-time ?1.0.1?
package require nstcl ?1.0?
::nstcl::first_day_of_week ?-format format? date
Returns the first day of the week containing the given date. The format of date can be anything that [clock scan] can parse.
- -format (defaults to %Y-%m-%d)
- Specifies the format that the first day of the week should be returned in. Consult the documentation for the [clock format] command for a list of valid field descriptors.