1 /* $OpenBSD: m_pattern.c,v 1.4 2001/01/22 18:02:05 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 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 <juergen.pfeifer@gmx.net> 1995,1997 * 33 ****************************************************************************/ 34 35 /*************************************************************************** 36 * Module m_pattern * 37 * Pattern matching handling * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$From: m_pattern.c,v 1.6 2000/12/10 02:16:48 tom 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 return (menu ? (menu->pattern ? menu->pattern : "") : (char *)0); 59 } 60 61 /*--------------------------------------------------------------------------- 62 | Facility : libnmenu 63 | Function : int set_menu_pattern(MENU *menu, const char *p) 64 | 65 | Description : Set the match pattern for a menu and position to the 66 | first item that matches. 67 | 68 | Return Values : E_OK - success 69 | E_BAD_ARGUMENT - invalid menu or pattern pointer 70 | E_NOT_CONNECTED - no items connected to menu 71 | E_BAD_STATE - menu in user hook routine 72 | E_NO_MATCH - no item matches pattern 73 +--------------------------------------------------------------------------*/ 74 NCURSES_EXPORT(int) 75 set_menu_pattern (MENU *menu, const char *p) 76 { 77 ITEM *matchitem; 78 int matchpos; 79 80 if (!menu || !p) 81 RETURN(E_BAD_ARGUMENT); 82 83 if (!(menu->items)) 84 RETURN(E_NOT_CONNECTED); 85 86 if ( menu->status & _IN_DRIVER ) 87 RETURN(E_BAD_STATE); 88 89 Reset_Pattern(menu); 90 91 if (!(*p)) 92 { 93 pos_menu_cursor(menu); 94 RETURN(E_OK); 95 } 96 97 if (menu->status & _LINK_NEEDED) 98 _nc_Link_Items(menu); 99 100 matchpos = menu->toprow; 101 matchitem = menu->curitem; 102 assert(matchitem); 103 104 while(*p) 105 { 106 if ( !isprint((unsigned char)(*p)) || 107 (_nc_Match_Next_Character_In_Item_Name(menu,*p,&matchitem) != E_OK) ) 108 { 109 Reset_Pattern(menu); 110 pos_menu_cursor(menu); 111 RETURN(E_NO_MATCH); 112 } 113 p++; 114 } 115 116 /* This is reached if there was a match. So we position to the new item */ 117 Adjust_Current_Item(menu,matchpos,matchitem); 118 RETURN(E_OK); 119 } 120 121 /* m_pattern.c ends here */ 122