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/****************************************************************************
* Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_pattern *
* Pattern matching handling *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_pattern.c,v 1.16 2010/01/23 21:20:10 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)"), (const void *)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)"), (void *)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 */
|
