Function CutWWWPrefix

library/cpp/string_utils/url/url.cpp:333–337

}

TStringBuf CutWWWPrefix(const TStringBuf url Y_LIFETIME_BOUND) noexcept {
    if (url.size() >= 4 && url[3] == '.' && !strnicmp(url.data(), "www", 3))
        return url.substr(4);
    return url;
}

TStringBuf CutWWWNumberedPrefix(const TStringBuf url Y_LIFETIME_BOUND) noexcept {
    auto it = url.begin();