+ #include<menu.h>
int set_menu_pattern(MENU *menu, const char *pattern);
char *menu_pattern(const MENU *menu);
-
-
DESCRIPTION
- Every menu has an associated pattern match buffer. As
- input events that are printable ASCII characters come in,
- they are appended to this match buffer and tested for a
- match, as described in menu_driver(3x).
+
+ Every menu has an associated pattern match buffer. As input events
+ that are printable characters come in, they are appended to this match
+ buffer and tested for a match, as described in menu_driver(3x).
- The function set_menu_pattern sets the pattern buffer for
- the given menu and tries to find the first matching item.
- If it succeeds, that item becomes current; if not, the
- current item does not change.
+ The function set_menu_pattern sets the pattern buffer for the given
+ menu and tries to find the first matching item. If it succeeds, that
+ item becomes current; if not, the current item does not change.
- The function menu_pattern returns the pattern buffer of
- the given menu.
+ The function menu_pattern returns the pattern buffer of the given menu.
-
-
RETURN VALUE
- The function menu_pattern returns NULL on error. The
- function set_menu_pattern may return the following error
- codes:
+
+ The function menu_pattern returns a pointer, which is NULL if the menu
+ parameter is NULL. Otherwise, it is a pointer to a string which is
+ empty if no pattern has been set. It does not set errno.
+
+ The function set_menu_pattern may return the following error codes:
- E_OK The routine succeeded.
+ 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_BAD_ARGUMENT
- Routine detected an incorrect or out-of-range argu-
- ment.
+ E_BAD_STATE
+ Routine was called from an initialization or termination function.
- E_NO_MATCH
+ E_NOT_CONNECTED
+ No items are connected to menu.
+
+ E_NO_MATCH
Character failed to match.
+ E_SYSTEM_ERROR
+ System error occurred (see errno).
-