Fast, correct, consistent, portable and convenient character
    string/text processing in every locale and any native encoding. 
    Owing to the use of the 'ICU' (International Components for Unicode) 
    library, the package provides 'R' users with platform-independent functions
    known to 'Java', 'Perl', 'Python', 'PHP' and 'Ruby' programmers. Available
    features include: pattern searching (e.g., with 'Java'-like regular
    expressions or the 'Unicode' collation algorithm), random string generation,
    case mapping, string transliteration, concatenation,
    Unicode normalization, date-time formatting and parsing and many more.
Marek Gagolewski [aut, cre] (<https://orcid.org/0000-0003-0637-6028>),
    Bartek Tartanus [ctb]
    and other contributors (stringi source code);
    IBM, Unicode, Inc. and other contributors (ICU4C source code);
    Unicode, Inc. (Unicode Character Database)