utf8-package: The utf8 Package

In utf8: Unicode Text Processing

The utf8 Package

Description

UTF-8 Text Processing

Details

Functions for manipulating and printing UTF-8 encoded text:

• as_utf8() attempts to convert character data to UTF-8, throwing an error if the data is invalid;

• utf8_valid() tests whether character data is valid according to its declared encoding;

• utf8_normalize() converts text to Unicode composed normal form (NFC), optionally applying case-folding and compatibility maps;

• utf8_encode() encodes a character string, escaping all control characters, so that it can be safely printed to the screen;

• utf8_format() formats a character vector by truncating to a specified character width limit or by left, right, or center justifying;

• utf8_print() prints UTF-8 character data to the screen;

• utf8_width() measures the display width of UTF-8 character strings (many emoji and East Asian characters are twice as wide as other characters);

• output_ansi() and output_utf8() test for the output connections capabilities.

For a complete list of functions, use library(help = "utf8").

Author(s)

Maintainer: Kirill Müller [e-mail] (ORCID)

Authors:

• Patrick O. Perry [copyright holder]

Other contributors:

• Unicode, Inc. (Unicode Character Database) [copyright holder, data contributor]

See Also

Useful links:

• https://krlmlr.github.io/utf8/

• https://github.com/krlmlr/utf8

• Report bugs at https://github.com/krlmlr/utf8/issues

utf8 documentation built on June 8, 2025, 9:31 p.m.