The function checks whether all bytes in a string are <= 127.
character vector, a raw vector, or
a list of
This function is independent of the way R marks encodings in character strings (see Encoding and stringi-encoding).
Returns a logical vector. The i-th element indicates whether the i-th string corresponds to a valid ASCII byte sequence.
Marek Gagolewski and other contributors
The official online manual of stringi at https://stringi.gagolewski.com/
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