| 1 | /****************************************************************************
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| 2 | * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc. *
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| 3 | * *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a *
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| 5 | * copy of this software and associated documentation files (the *
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| 6 | * "Software"), to deal in the Software without restriction, including *
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| 7 | * without limitation the rights to use, copy, modify, merge, publish, *
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| 8 | * distribute, distribute with modifications, sublicense, and/or sell *
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| 9 | * copies of the Software, and to permit persons to whom the Software is *
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| 10 | * furnished to do so, subject to the following conditions: *
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| 11 | * *
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| 12 | * The above copyright notice and this permission notice shall be included *
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| 13 | * in all copies or substantial portions of the Software. *
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| 14 | * *
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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| 22 | * *
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| 23 | * Except as contained in this notice, the name(s) of the above copyright *
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| 24 | * holders shall not be used in advertising or otherwise to promote the *
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| 25 | * sale, use or other dealings in this Software without prior written *
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| 26 | * authorization. *
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| 27 | ****************************************************************************/
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| 28 |
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| 29 | /****************************************************************************
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| 30 | * Author: Juergen Pfeifer, 1995,1997 *
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| 31 | ****************************************************************************/
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| 32 |
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| 33 | /***************************************************************************
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| 34 | * Module m_pattern *
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| 35 | * Pattern matching handling *
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| 36 | ***************************************************************************/
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| 37 |
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| 38 | #include "menu.priv.h"
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| 39 |
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| 40 | MODULE_ID("$Id: m_pattern.c,v 1.14 2005/04/16 17:53:16 tom Exp $")
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| 41 |
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| 42 | /*---------------------------------------------------------------------------
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| 43 | | Facility : libnmenu
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| 44 | | Function : char *menu_pattern(const MENU *menu)
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| 45 | |
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| 46 | | Description : Return the value of the pattern buffer.
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| 47 | |
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| 48 | | Return Values : NULL - if there is no pattern buffer allocated
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| 49 | | EmptyString - if there is a pattern buffer but no
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| 50 | | pattern is stored
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| 51 | | PatternString - as expected
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| 52 | +--------------------------------------------------------------------------*/
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| 53 | NCURSES_EXPORT(char *)
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| 54 | menu_pattern(const MENU * menu)
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| 55 | {
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| 56 | static char empty[] = "";
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| 57 |
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| 58 | T((T_CALLED("menu_pattern(%p)"), menu));
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| 59 | returnPtr(menu ? (menu->pattern ? menu->pattern : empty) : 0);
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| 60 | }
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| 61 |
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| 62 | /*---------------------------------------------------------------------------
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| 63 | | Facility : libnmenu
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| 64 | | Function : int set_menu_pattern(MENU *menu, const char *p)
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| 65 | |
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| 66 | | Description : Set the match pattern for a menu and position to the
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| 67 | | first item that matches.
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| 68 | |
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| 69 | | Return Values : E_OK - success
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| 70 | | E_BAD_ARGUMENT - invalid menu or pattern pointer
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| 71 | | E_NOT_CONNECTED - no items connected to menu
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| 72 | | E_BAD_STATE - menu in user hook routine
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| 73 | | E_NO_MATCH - no item matches pattern
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| 74 | +--------------------------------------------------------------------------*/
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| 75 | NCURSES_EXPORT(int)
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| 76 | set_menu_pattern(MENU * menu, const char *p)
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| 77 | {
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| 78 | ITEM *matchitem;
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| 79 | int matchpos;
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| 80 |
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| 81 | T((T_CALLED("set_menu_pattern(%p,%s)"), menu, _nc_visbuf(p)));
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| 82 |
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| 83 | if (!menu || !p)
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| 84 | RETURN(E_BAD_ARGUMENT);
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| 85 |
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| 86 | if (!(menu->items))
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| 87 | RETURN(E_NOT_CONNECTED);
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| 88 |
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| 89 | if (menu->status & _IN_DRIVER)
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| 90 | RETURN(E_BAD_STATE);
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| 91 |
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| 92 | Reset_Pattern(menu);
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| 93 |
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| 94 | if (!(*p))
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| 95 | {
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| 96 | pos_menu_cursor(menu);
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| 97 | RETURN(E_OK);
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| 98 | }
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| 99 |
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| 100 | if (menu->status & _LINK_NEEDED)
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| 101 | _nc_Link_Items(menu);
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| 102 |
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| 103 | matchpos = menu->toprow;
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| 104 | matchitem = menu->curitem;
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| 105 | assert(matchitem);
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| 106 |
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| 107 | while (*p)
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| 108 | {
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| 109 | if (!isprint(UChar(*p)) ||
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| 110 | (_nc_Match_Next_Character_In_Item_Name(menu, *p, &matchitem) != E_OK))
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| 111 | {
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| 112 | Reset_Pattern(menu);
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| 113 | pos_menu_cursor(menu);
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| 114 | RETURN(E_NO_MATCH);
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| 115 | }
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| 116 | p++;
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| 117 | }
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| 118 |
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| 119 | /* This is reached if there was a match. So we position to the new item */
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| 120 | Adjust_Current_Item(menu, matchpos, matchitem);
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| 121 | RETURN(E_OK);
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| 122 | }
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| 123 |
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| 124 | /* m_pattern.c ends here */
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