Look up the registered policy for a koma_ts attribute

Usage

get_koma_attr_policy(attr)

Arguments

attr: Name of the attribute.

Value

The list of handlers (merge, lag, window, na_omit) registered via set_koma_attr_policy() for attr, or NULL if no policy has been registered – in which case merges fall back to default_koma_attr_merge() and lag/window/na_omit leave the attribute value unchanged.

Examples

set_koma_attr_policy(
  "anker",
  merge = function(left, right, attr, op = NULL, template = NULL) NA
)
get_koma_attr_policy("anker")
#> $merge
#> function (left, right, attr, op = NULL, template = NULL) 
#> NA
#> <environment: 0x562c9364d9a8>
#> 
#> $lag
#> NULL
#> 
#> $window
#> NULL
#> 
#> $na_omit
#> NULL
#> 
get_koma_attr_policy("some_other_attribute") # NULL: nothing registered
#> NULL