Parse a media type.

Source: R/media-parse.r

Parsed according to RFC 2616, as at https://www.rfc-editor.org/rfc/rfc2616#section-3.7.

parse_media(x)

Arguments

x

String to parse

Details

A simplified minimal EBNF is:

  • media-type = type "/" subtype *( ";" parameter )

  • type = token

  • subtype = token

  • parameter = attribute "=" value

  • attribute = token

  • value = token | quoted-string

  • token = 1*<any CHAR except CTLs or ()<>@,;:\"/[]?=\{\}

Examples

parse_media("text/plain")
#> $complete
#> [1] "text/plain"
#> 
#> $type
#> [1] "text"
#> 
#> $subtype
#> [1] "plain"
#> 
#> $params
#> list()
#> 
parse_media("text/plain; charset=utf-8")
#> $complete
#> [1] "text/plain"
#> 
#> $type
#> [1] "text"
#> 
#> $subtype
#> [1] "plain"
#> 
#> $params
#> $params$charset
#> [1] "utf-8"
#> 
#> 
parse_media("text/plain; charset=\"utf-8\"")
#> $complete
#> [1] "text/plain"
#> 
#> $type
#> [1] "text"
#> 
#> $subtype
#> [1] "plain"
#> 
#> $params
#> $params$charset
#> [1] "utf-8"
#> 
#> 
parse_media("text/plain; randomparam=\";=;=\"")
#> $complete
#> [1] "text/plain"
#> 
#> $type
#> [1] "text"
#> 
#> $subtype
#> [1] "plain"
#> 
#> $params
#> $params$randomparam
#> [1] ";=;="
#> 
#>