08-07-2018
Quote:
Originally Posted by
annacreek
Sure, but it just replaces the "menu" static text structure with static array.
Since "case" gets executed in one pass I would have to make two passes. Make first one to search for invalid option and somehow count the number of steps taken until the "not found option" error is executed.
That would be my "max option" value.
Naw, this is too convoluted and silly,
Hm.. I don't quite understand the comments and the
counting part in particular.
You must have the list of available menu choices stored somewhere: hardwired, read from file etc... I've just provided a sample using
select with the hardwired menu choices in the form of an array - this is just a
sample showing the
select capability WITH the dynamic prompt choices.
What are you trying to do with
counting?
I'm confused as what you're after. You'll have to explain it again...
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LEARN ABOUT OPENDARWIN
menu_items
menu_items(3X) menu_items(3X)
NAME
menu_items - make and break connections between items and menus
SYNOPSIS
#include <menu.h>
int set_menu_items(MENU *menu, ITEM **items);
ITEM **menu_items(const MENU *menu);
int item_count(const MENU *menu);
DESCRIPTION
The function set_menu_items changes the item pointer array of the given menu. The array must be terminated by a NULL.
The function menu_items returns the item array of the given menu.
The function item_count returns the count of items in menu.
RETURN VALUES
The function menu_items returns NULL on error.
The function item_count returns ERR (the general curses error return value) on error.
The function set_menu_items returns one of the following codes on error:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
E_POSTED
The menu is already posted.
E_NOT_CONNECTED
No items are connected to the menu.
SEE ALSO
curses(3X), menu(3X).
NOTES
The header file <menu.h> automatically includes the header file <curses.h>.
PORTABILITY
These routines emulate the System V menu library. They were not supported on Version 7 or BSD versions.
The SVr4 menu library documentation specifies the item_count error value as -1 (which is the value of ERR).
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.
menu_items(3X)