Method insert

modules/gui/gui/src/backend/text_server/ustring.cpp:3400–3425

}

String String::insert(int p_at_pos, const String& p_string) const
{
    if (p_at_pos < 0)
    {
        return *this;
    }

    if (p_at_pos > length())
    {
        p_at_pos = length();
    }

    String pre;
    if (p_at_pos > 0)
    {
        pre = substr(0, p_at_pos);
    }

    String post;
    if (p_at_pos < length())
    {
        post = substr(p_at_pos, length() - p_at_pos);
    }

    return pre + p_string + post;
}

String String::substr(int p_from, int p_chars) const
{