Takes any vector of languages and returns ISO code.
Examples
iso.lang('Kabardian')
#> Kabardian
#> "kbd"
iso.lang(c('Kabardian', 'Udi'))
#> Kabardian Udi
#> "kbd" "udi"
Takes any vector of languages and returns ISO code.
iso.lang('Kabardian')
#> Kabardian
#> "kbd"
iso.lang(c('Kabardian', 'Udi'))
#> Kabardian Udi
#> "kbd" "udi"