stri_enc_fromutf32: Convert From UTF-32

In stringi: Fast and Portable Character String Processing Facilities

Convert From UTF-32

Description

This function converts integer vectors, representing sequences of UTF-32 code points, to UTF-8 strings.

Usage

stri_enc_fromutf32(vec)

Arguments

vec	a list of integer vectors (or objects coercible to such vectors) or NULLs. For convenience, a single integer vector can also be given.

Details

UTF-32 is a 32-bit encoding where each Unicode code point corresponds to exactly one integer value.

This function is a vectorized version of intToUtf8. As usual in stringi, it returns character strings in UTF-8. See stri_enc_toutf32 for a dual operation.

If an ill-defined code point is given, a warning is generated and the corresponding string is set to NA. Note that 0s are not allowed in vec, as they are used internally to mark the end of a string (in the C API).

See also stri_encode for decoding arbitrary byte sequences from any given encoding.

Value

Returns a character vector (in UTF-8). NULLs in the input list are converted to NA_character_.

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, \Sexpr[results=rd]{tools:::Rd_expr_doi("10.18637/jss.v103.i02")}

Other encoding_conversion: about_encoding, stri_enc_toascii(), stri_enc_tonative(), stri_enc_toutf32(), stri_enc_toutf8(), stri_encode()

stringi documentation built on May 29, 2024, 8:16 a.m.