blob: 1171390e214c8fae89aca191d12a0e315b42207c [file] [log] [blame] [edit]
/****************************************************************************
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* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
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* furnished to do so, subject to the following conditions: *
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* The above copyright notice and this permission notice shall be included *
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****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_pattern *
* Pattern matching handling *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_pattern.c,v 1.15 2006/11/04 18:46:39 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : char *menu_pattern(const MENU *menu)
|
| Description : Return the value of the pattern buffer.
|
| Return Values : NULL - if there is no pattern buffer allocated
| EmptyString - if there is a pattern buffer but no
| pattern is stored
| PatternString - as expected
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(char *)
menu_pattern(const MENU * menu)
{
static char empty[] = "";
T((T_CALLED("menu_pattern(%p)"), menu));
returnPtr(menu ? (menu->pattern ? menu->pattern : empty) : 0);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : int set_menu_pattern(MENU *menu, const char *p)
|
| Description : Set the match pattern for a menu and position to the
| first item that matches.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu or pattern pointer
| E_BAD_STATE - menu in user hook routine
| E_NOT_CONNECTED - no items connected to menu
| E_NO_MATCH - no item matches pattern
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_menu_pattern(MENU * menu, const char *p)
{
ITEM *matchitem;
int matchpos;
T((T_CALLED("set_menu_pattern(%p,%s)"), menu, _nc_visbuf(p)));
if (!menu || !p)
RETURN(E_BAD_ARGUMENT);
if (!(menu->items))
RETURN(E_NOT_CONNECTED);
if (menu->status & _IN_DRIVER)
RETURN(E_BAD_STATE);
Reset_Pattern(menu);
if (!(*p))
{
pos_menu_cursor(menu);
RETURN(E_OK);
}
if (menu->status & _LINK_NEEDED)
_nc_Link_Items(menu);
matchpos = menu->toprow;
matchitem = menu->curitem;
assert(matchitem);
while (*p)
{
if (!isprint(UChar(*p)) ||
(_nc_Match_Next_Character_In_Item_Name(menu, *p, &matchitem) != E_OK))
{
Reset_Pattern(menu);
pos_menu_cursor(menu);
RETURN(E_NO_MATCH);
}
p++;
}
/* This is reached if there was a match. So we position to the new item */
Adjust_Current_Item(menu, matchpos, matchitem);
RETURN(E_OK);
}
/* m_pattern.c ends here */