stri_enc_isascii: Check If a Data Stream Is Possibly in ASCII

In stringi: THE string processing package for R

Description

The function checks whether all bytes in a string are in the set 1,2,...,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. Its i-th element indicates whether the i-th string corresponds to a valid ASCII byte sequence.

See Also

Other encoding_detection: stri_enc_detect2; stri_enc_detect; stri_enc_isutf16be, stri_enc_isutf16le, stri_enc_isutf32be, stri_enc_isutf32le; stri_enc_isutf8; stringi-encoding

Examples

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

Example output

[1] TRUE TRUE TRUE
[1] FALSE

stringi documentation built on May 2, 2019, 4:54 p.m.