1 /* $OpenBSD: m_pattern.c,v 1.5 2010/01/12 23:22:08 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Juergen Pfeifer, 1995,1997 * 33 ****************************************************************************/ 34 35 /*************************************************************************** 36 * Module m_pattern * 37 * Pattern matching handling * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$Id: m_pattern.c,v 1.5 2010/01/12 23:22:08 nicm Exp $") 43 44 /*--------------------------------------------------------------------------- 45 | Facility : libnmenu 46 | Function : char *menu_pattern(const MENU *menu) 47 | 48 | Description : Return the value of the pattern buffer. 49 | 50 | Return Values : NULL - if there is no pattern buffer allocated 51 | EmptyString - if there is a pattern buffer but no 52 | pattern is stored 53 | PatternString - as expected 54 +--------------------------------------------------------------------------*/ 55 NCURSES_EXPORT(char *) 56 menu_pattern(const MENU * menu) 57 { 58 static char empty[] = ""; 59 60 T((T_CALLED("menu_pattern(%p)"), menu)); 61 returnPtr(menu ? (menu->pattern ? menu->pattern : empty) : 0); 62 } 63 64 /*--------------------------------------------------------------------------- 65 | Facility : libnmenu 66 | Function : int set_menu_pattern(MENU *menu, const char *p) 67 | 68 | Description : Set the match pattern for a menu and position to the 69 | first item that matches. 70 | 71 | Return Values : E_OK - success 72 | E_BAD_ARGUMENT - invalid menu or pattern pointer 73 | E_BAD_STATE - menu in user hook routine 74 | E_NOT_CONNECTED - no items connected to menu 75 | E_NO_MATCH - no item matches pattern 76 +--------------------------------------------------------------------------*/ 77 NCURSES_EXPORT(int) 78 set_menu_pattern(MENU * menu, const char *p) 79 { 80 ITEM *matchitem; 81 int matchpos; 82 83 T((T_CALLED("set_menu_pattern(%p,%s)"), menu, _nc_visbuf(p))); 84 85 if (!menu || !p) 86 RETURN(E_BAD_ARGUMENT); 87 88 if (!(menu->items)) 89 RETURN(E_NOT_CONNECTED); 90 91 if (menu->status & _IN_DRIVER) 92 RETURN(E_BAD_STATE); 93 94 Reset_Pattern(menu); 95 96 if (!(*p)) 97 { 98 pos_menu_cursor(menu); 99 RETURN(E_OK); 100 } 101 102 if (menu->status & _LINK_NEEDED) 103 _nc_Link_Items(menu); 104 105 matchpos = menu->toprow; 106 matchitem = menu->curitem; 107 assert(matchitem); 108 109 while (*p) 110 { 111 if (!isprint(UChar(*p)) || 112 (_nc_Match_Next_Character_In_Item_Name(menu, *p, &matchitem) != E_OK)) 113 { 114 Reset_Pattern(menu); 115 pos_menu_cursor(menu); 116 RETURN(E_NO_MATCH); 117 } 118 p++; 119 } 120 121 /* This is reached if there was a match. So we position to the new item */ 122 Adjust_Current_Item(menu, matchpos, matchitem); 123 RETURN(E_OK); 124 } 125 126 /* m_pattern.c ends here */ 127