Function prev_utf8_char_pos

common/console.cpp:432–439

Helper function to remove the last UTF-8 character from a string

    // Helper function to remove the last UTF-8 character from a string
    static size_t prev_utf8_char_pos(const std::string & line, size_t pos) {
        if (pos == 0) return 0;
        pos--;
        while (pos > 0 && (line[pos] & 0xC0) == 0x80) {
            pos--;
        }
        return pos;
    }

    static size_t next_utf8_char_pos(const std::string & line, size_t pos) {
        if (pos >= line.length()) return line.length();