bool game_options::include_file_directive(const std::string &line,
                                          bool runscript)
{
    const std::string prefix = "include ";
    if (line.find(prefix) == std::string::npos)
        return (false);

    std::string include_line = trimmed_string(line);
    if (include_line.find(prefix) == 0)
    {
        include(trimmed_string(include_line.substr(prefix.length())),
                true, runscript);
        return (true);
    }
    return (false);
}

    // If the user asked us to include a file, don't try to process the line
    // as an option.
    if (include_file_directive(str, runscript))
        return;

        && key != "levels" && key != "level" && key != "entries")

        && key != "levels" && key != "level" && key != "entries"
        && key != "include")

    if (key == "opt" || key == "option")

    if (key == "include")
    {
        include(field, true, runscript);
    }
    else if (key == "opt" || key == "option")

    bool include_file_directive(const std::string &line, bool runscript);

# include                   034_monster_glyphs.txt

# include                 = 034_monster_glyphs.txt

include travel_stoppers.txt

include = travel_stoppers.txt