stri_enc_isascii: Check If a Data Stream Is Possibly in ASCII

In stringi: Fast and Portable Character String Processing Facilities

Check If a Data Stream Is Possibly in ASCII

Description

The function checks whether all bytes in a string are <= 127.

Usage

stri_enc_isascii(str)

Arguments

str	character vector, a raw vector, or a list of raw vectors

Details

This function is independent of the way R marks encodings in character strings (see Encoding and stringi-encoding).

Value

Returns a logical vector. The i-th element indicates whether the i-th string corresponds to a valid ASCII byte sequence.

Author(s)

Marek Gagolewski and other contributors

See Also

The official online manual of stringi at https://stringi.gagolewski.com/

Gagolewski M., stringi: Fast and portable character string processing in R, Journal of Statistical Software 103(2), 2022, 1-59, doi: 10.18637/jss.v103.i02

Other encoding_detection: about_encoding, stri_enc_detect2(), stri_enc_detect(), stri_enc_isutf16be(), stri_enc_isutf8()

Examples

stri_enc_isascii(letters[1:3])
stri_enc_isascii('\u0105\u0104')

stringi documentation built on Jan. 11, 2023, 5:18 p.m.