The lineage of a type

Every type has one parent, ending at application/octet-stream: text types descend from text/plain, XML dialects from application/xml, JSON dialects from application/json, ZIP-based formats from application/zip.

Usage

mime_parent(type)

Arguments

type

A character vector of types. Aliases, parameters and case are ignored.

Value

A list with one character vector per type: its ancestors, nearest first, empty for the root and NA for an unknown type.

See also

mime_is() to test membership.

Other registry: mime_extensions(), mime_guess(), mime_is(), mime_types()

Examples

mime_parent("image/svg+xml")
#> [[1]]
#> [1] "application/xml"          "text/plain"              
#> [3] "application/octet-stream"
#> 
mime_parent(c("application/x-sqlite3", "application/octet-stream"))
#> [[1]]
#> [1] "application/octet-stream"
#> 
#> [[2]]
#> character(0)
#>