Check if a character vector consists of entirely ASCII characters

Converts the encoding of a character vector to 'ascii', and check if the result is NA.

is_ascii(x)

Arguments

x

A character vector.

Value

A logical vector indicating whether each element of the character vector is ASCII.

Examples

library(xfun)
is_ascii(letters)  # yes
#>  [1] TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE
#> [16] TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE TRUE
is_ascii(intToUtf8(8212))  # no
#> [1] FALSE