Build a copyright-year updater

Returns a function that extends a copyright field to the current year, keeping the owner name and any existing start year. Pass it as a named update to stamp_update(), or use stamp_bump_year() to apply it directly to a file.

Usage

year_extend(initial_year = NULL)

Arguments

initial_year

Character or NULL. Start year to use when the field has no year yet.

Value

A function of the current field value, suitable as an update in stamp_update().

See also

stamp_update(), stamp_bump_year(), author_add()

Examples

extend <- year_extend()
extend("Acme Corp 2020")
#> [1] "Acme Corp 2020-2026"