Function utf8_len

bark.cpp:487–491

}

static size_t utf8_len(char src) {
    const size_t lookup[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 4};
    uint8_t highbits = static_cast<uint8_t>(src) >> 4;
    return lookup[highbits];
}

static std::string strip_accents(const std::string& in_str) {
    std::string out_str;