#define byte             unsigned char
#define MAX_LINE         140
#define MAX_FILE_NAME    80
#define MAX_VARS         9     
#define MAX_PALETTES     10
#define MAX_SPECIAL      30
#define PALETTE_SIZE     7
#define MAX_RECURSION    9
#define CENTER           255
#define VAR_NOT_FOUND    (char) 255

/***************************************************************************/
typedef enum { NO, YES } boolean;

/***************************************************************************/
typedef enum { EXECUTE_BATCH, LEAVE_MENU, EXECUTE_N_LEAVE } exit_actions;

/***************************************************************************/
typedef enum { BACK, TEXT, TITLE, BORDER, HIGHLIGHT, S_BACK, SELECT } palette_colors;

/***************************************************************************/
typedef enum { MEMORY, FILE_OPEN, SYNTAX, VALUE, POSITION, DISPLAY, 
        ENVIROMENT } error_type;

/***************************************************************************/
typedef enum { NO_ACTION, MOVE_UP, MOVE_DOWN, GOTO_TOP, GOTO_BOTTOM, GOTO_ITEM, 
        BACK_SPACE, ESCAPE, KEY_PRESS, OTHER, DO_ITEM, SPECIAL } action_type;

/***************************************************************************/
typedef enum { MAKE_BATCH, NEW_WINDOW, MAKE_TEXT_BOX, GET_DISK_SPACE, 
        FIND_FLOPPY, ASK_FOR_VAR, PASSWORD, LOGOUT, EXIT, REBOOT,
        IF, IF_USERNAME, IF_MEMBER, ELSE, ENDIF }
        execute_option;

/***************************************************************************/
struct linked_text
{
    struct linked_text *next_line;
    char   text_line[1];
};

typedef struct linked_text Linked_Text;

/***************************************************************************/
struct linked_text_block
{
    Linked_Text              *first_line;
    struct linked_text_block *next_block;
    byte                     x1,y1,pal;
};

typedef struct linked_text_block Linked_Text_Block;

/***************************************************************************/
struct item
{
    byte             title_length, item_number;
    struct item      *next_item,*last_item;
    struct linked_text *first_line;
    char             title[1];
};

typedef struct item Item;

/***************************************************************************/
struct menu
{
    byte             offset_x, offset_y, palette, number_of_items, 
                     title_length;
    struct menu      *next_menu;
    struct item      *first_item;
    char             title[1];
};

typedef struct menu Menu;

/***************************************************************************/
struct window_record
{
    Menu            *menu;
    Item            *item;
    int             *storage;
    byte            left, right, width, top, bottom, height;
    action_type     event;
};

typedef struct window_record Window_Record;

/***************************************************************************/
struct event
{
    action_type   action;
    byte          data;
};

typedef struct event Event;

/***************************************************************************/
struct vars
{
    char   *name, *value;
};

typedef struct vars Vars;

/***************************************************************************/
                  /* palettes */
/*BACKground, TEXT, TITLE, BORDER, HIGHLIGHT, Selection BACKground, SELECTion*/

byte palette[ MAX_PALETTES ][ PALETTE_SIZE ] = {
            {1,15,15,15,14,7,1},{3,1,1,1,1,0,15},
            {4,14,14,14,14,7,15},{7,5,1,15,15,5,15},
            {0,3,3,8,7,7,0},{0,12,13,1,9,7,15},
            {0,11,15,8,7,2,15},{2,0,15,10,14,0,10},
            {0,7,15,7,15,7,0},{7,0,0,0,0,0,7}   };

/***************************************************************************/
                /*Global Variables */

/* global menu defaults */
byte             default_x = CENTER, default_y = CENTER, default_palette, 
                 header_palette, error_palette, message_palette,
                 backdrop_color, footer_color, footer_highlight, 
                 backdrop_char = '°', cascade_x = 4, cascade_y = 1;
        
boolean          exitable = YES, shadow = NO, draw_shadow = NO, cascade = NO;

/* global pointers */
Menu            *first_menu, *current_menu;
Item            *current_item;
Linked_Text     *current_text;
Linked_Text_Block *first_text_block, *current_text_block;
char            *current_file;
int far         *video_start;
char far        *env_start;

/* working records */
Window_Record   Win[MAX_RECURSION+2];
Event           event;
byte            win_index;

Vars             vars[MAX_VARS];
byte             var_number = 0;

/* working window */
byte            top, bottom, left, right, height, width;

/* file names */
char            *backdrop_file = NULL;

/* special items & their helpers*/
Item            *special_item[MAX_SPECIAL];
       /*  list of special items :        0       timer
                                        1 -10   function keys
                                        11-30   hot keys       */

                /* timer stuff */
byte            current_minute = 61,
                timer = 0, timer_holder = 0;
unsigned int    clock_place;

                /*hot key stuff */
byte            hot_keys = 11;

/* video varibles */
boolean         color_monitor;
byte            max_screen_x, max_screen_y;

/* mouse variables */
byte            last_button, last_x, last_y, selected_fn;

/* shadow stuff */
byte            shadow_color, *shad_buf;

/* other variables */
byte            l_len;
unsigned int    line_count;
boolean         show_time = YES;
boolean         first_run = YES;
boolean         do_return = YES;
boolean         quick_select = NO;
boolean         allow_comments = YES;
char            *screen_saver_message = NULL;
char            *header_message = NULL;
byte            video_mode;
byte            cursor_top;
byte            cursor_bottom;

/***************************************************************************/
/* procedure definitions */

    /* parse.c */
Menu        *Allocate_Menu( void );
Item        *Allocate_Item( void );
Linked_Text *Allocate_Linked_Text( void );
void        Read_Line(char *t_line, FILE *Script );
boolean     Compare(char *string1, char *string2);
char        *After_Space(char *place);
char        *After_Equals(char *place);
char        *After_Comma(char *place);
byte        Get_Palette(char *place, byte def_value);
byte        Get_Color(char *place,byte def_value);
byte        Get_Value(char *place, byte def_value);
void        Do_If( char *place, FILE *Script );
void        Do_If_Username( char *place, FILE *Script );
void        Do_If_Member( char *place, FILE *Script );
void        Do_Else( char *place, FILE *Script );
void        Parse_Command(char *place,FILE *Script);
void        Parse_Menu(char t_line[]);
void        Parse_Item(char t_line[]);
void        Parse_Item_Text(char t_line[]);
void        Parse_Engine( void );
void        Parse( char dos_param_2[] );
void        Include( char *place );

    /* draw.c */
void _fastcall Draw(byte x,byte y,char thing,byte color);
byte _fastcall Read_Color(byte x, byte y);
void _fastcall Put_Color(byte x,byte y,byte color);
void _fastcall Fill_Screen(char thing,byte color);
void _fastcall Put_Cursor(byte col,byte row);
void        Hide_Cursor( void );
void        Show_Cursor( void );
void        Hide_Mouse( void );
void        Show_Mouse( void );
void        Clean_Up( void );
void        Screen_Saver( void );
int         *Store_Screen( void );
void        Restore_Screen(int *storage_addr );
void        Display_Menu(Item *hi_item);
void        Select(Item *new_item);
void        Display_Text_Box(char *lines[],byte x1,byte y1, byte pal);
void        Display_Shadow( void );
void        Remove_Shadow( void );
void        Draw_Backdrop( void );
void        Draw_Header( void );
void        Draw_Footer( void );
void        Draw_Back_Boxes( void );

    /* input.c */
void        Update_Time( void );
void        Select_Fn( byte x );
void        Unselect_Fn( void );
byte        Old_Window(byte x,byte y);
void        Update_Mouse( void );
void        Scan_For_Letter(char key_input );
void        Get_Key_Input( void );
void        Wait_For_Event( void );
void        Pause_Until_Serious_Action( void );

    /* dougmenu.c */
boolean     Windowfy_Menu(Menu *menu);
Item        *Number_To_Item(byte number);
Item        *Home_Item( void );
Item        *End_Item( void );
Item        *Previous_Item( void );
Item        *Next_Item( void );
void        Last_Window_Globals( void );
void        Remove_Window( void );
Menu        *Find_Menu( Linked_Text *title_text );
void        main( int argc, char *argv[] );

    /* execute.c */
byte        Do_Query_Window( Menu *query );
void        Exit_Query( void );
void        Choice_Query(char *place, char temp[] );
void        String_Query(char *place, char string[], boolean show_it );
void        Create_Text_Box( char *place );
void        Get_Disk_Space( char *place );
void        Find_Floppy( char *place );
void        Ask_For_Pass( char *place );
void        Logout( void );
void        Reboot( void );
void        Execute_Item( void );
execute_option What_To_Do( char *temp);
void        Make_Batch( void );
void        Exec_If( char *place );
void        Exec_If_Username( char *place );
void        Exec_If_Member( char *place );
void        Exec_Else( char *place );



    /* misc.c */
void        Break_Off( void );
long int    Disk_Space_Check( byte drive );
void        Monochrome_Defaults( void );
void        Get_Video_Info( char *parameter );
void        Set_Up_Enviroment( void );
void        Set_Up_Mouse( void );
void        Set_Up_Screen( void );
void        Find_Env_Var( char *var, char *string, byte space);
boolean     Fcompare( char *string1,char far *string2 );
void        Ask_For_Var( char *place );
void        Transcribe_String(char *old,char *new);
boolean     Get_DM_Var( char *place, char *temp, byte space);
void        Critical_Error(error_type error);
void        Error_Box(char line1[],char line2[]);