1 /**************************************************************************** 2 * Copyright (c) 1998-2006,2010 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Juergen Pfeifer, 1995,1997 * 31 ****************************************************************************/ 32 33 /*************************************************************************** 34 * Module m_pattern * 35 * Pattern matching handling * 36 ***************************************************************************/ 37 38 #include "menu.priv.h" 39 40 MODULE_ID("$Id: m_pattern.c,v 1.16 2010/01/23 21:20:10 tom Exp $") 41 42 /*--------------------------------------------------------------------------- 43 | Facility : libnmenu 44 | Function : char *menu_pattern(const MENU *menu) 45 | 46 | Description : Return the value of the pattern buffer. 47 | 48 | Return Values : NULL - if there is no pattern buffer allocated 49 | EmptyString - if there is a pattern buffer but no 50 | pattern is stored 51 | PatternString - as expected 52 +--------------------------------------------------------------------------*/ 53 NCURSES_EXPORT(char *) 54 menu_pattern(const MENU * menu) 55 { 56 static char empty[] = ""; 57 58 T((T_CALLED("menu_pattern(%p)"), (const void *)menu)); 59 returnPtr(menu ? (menu->pattern ? menu->pattern : empty) : 0); 60 } 61 62 /*--------------------------------------------------------------------------- 63 | Facility : libnmenu 64 | Function : int set_menu_pattern(MENU *menu, const char *p) 65 | 66 | Description : Set the match pattern for a menu and position to the 67 | first item that matches. 68 | 69 | Return Values : E_OK - success 70 | E_BAD_ARGUMENT - invalid menu or pattern pointer 71 | E_BAD_STATE - menu in user hook routine 72 | E_NOT_CONNECTED - no items connected to menu 73 | E_NO_MATCH - no item matches pattern 74 +--------------------------------------------------------------------------*/ 75 NCURSES_EXPORT(int) 76 set_menu_pattern(MENU * menu, const char *p) 77 { 78 ITEM *matchitem; 79 int matchpos; 80 81 T((T_CALLED("set_menu_pattern(%p,%s)"), (void *)menu, _nc_visbuf(p))); 82 83 if (!menu || !p) 84 RETURN(E_BAD_ARGUMENT); 85 86 if (!(menu->items)) 87 RETURN(E_NOT_CONNECTED); 88 89 if (menu->status & _IN_DRIVER) 90 RETURN(E_BAD_STATE); 91 92 Reset_Pattern(menu); 93 94 if (!(*p)) 95 { 96 pos_menu_cursor(menu); 97 RETURN(E_OK); 98 } 99 100 if (menu->status & _LINK_NEEDED) 101 _nc_Link_Items(menu); 102 103 matchpos = menu->toprow; 104 matchitem = menu->curitem; 105 assert(matchitem); 106 107 while (*p) 108 { 109 if (!isprint(UChar(*p)) || 110 (_nc_Match_Next_Character_In_Item_Name(menu, *p, &matchitem) != E_OK)) 111 { 112 Reset_Pattern(menu); 113 pos_menu_cursor(menu); 114 RETURN(E_NO_MATCH); 115 } 116 p++; 117 } 118 119 /* This is reached if there was a match. So we position to the new item */ 120 Adjust_Current_Item(menu, matchpos, matchitem); 121 RETURN(E_OK); 122 } 123 124 /* m_pattern.c ends here */ 125