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/* $OpenBSD: m_pattern.c,v 1.5 2010/01/12 23:22:08 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2005,2006 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/**************************************************************************** |
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* Author: Juergen Pfeifer, 1995,1997 * |
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****************************************************************************/ |
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/*************************************************************************** |
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* Module m_pattern * |
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* Pattern matching handling * |
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***************************************************************************/ |
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#include "menu.priv.h" |
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MODULE_ID("$Id: m_pattern.c,v 1.5 2010/01/12 23:22:08 nicm Exp $") |
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/*--------------------------------------------------------------------------- |
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| Facility : libnmenu |
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| Function : char *menu_pattern(const MENU *menu) |
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| Description : Return the value of the pattern buffer. |
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| Return Values : NULL - if there is no pattern buffer allocated |
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| EmptyString - if there is a pattern buffer but no |
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| pattern is stored |
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| PatternString - as expected |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(char *) |
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menu_pattern(const MENU * menu) |
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{ |
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static char empty[] = ""; |
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T((T_CALLED("menu_pattern(%p)"), menu)); |
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returnPtr(menu ? (menu->pattern ? menu->pattern : empty) : 0); |
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} |
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/*--------------------------------------------------------------------------- |
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| Facility : libnmenu |
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| Function : int set_menu_pattern(MENU *menu, const char *p) |
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| Description : Set the match pattern for a menu and position to the |
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| first item that matches. |
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| |
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| Return Values : E_OK - success |
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| E_BAD_ARGUMENT - invalid menu or pattern pointer |
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| E_BAD_STATE - menu in user hook routine |
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| E_NOT_CONNECTED - no items connected to menu |
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| E_NO_MATCH - no item matches pattern |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(int) |
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set_menu_pattern(MENU * menu, const char *p) |
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{ |
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ITEM *matchitem; |
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int matchpos; |
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T((T_CALLED("set_menu_pattern(%p,%s)"), menu, _nc_visbuf(p))); |
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if (!menu || !p) |
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RETURN(E_BAD_ARGUMENT); |
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if (!(menu->items)) |
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RETURN(E_NOT_CONNECTED); |
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if (menu->status & _IN_DRIVER) |
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RETURN(E_BAD_STATE); |
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Reset_Pattern(menu); |
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if (!(*p)) |
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{ |
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pos_menu_cursor(menu); |
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RETURN(E_OK); |
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} |
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if (menu->status & _LINK_NEEDED) |
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_nc_Link_Items(menu); |
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matchpos = menu->toprow; |
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matchitem = menu->curitem; |
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assert(matchitem); |
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while (*p) |
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{ |
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if (!isprint(UChar(*p)) || |
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(_nc_Match_Next_Character_In_Item_Name(menu, *p, &matchitem) != E_OK)) |
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{ |
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Reset_Pattern(menu); |
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pos_menu_cursor(menu); |
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RETURN(E_NO_MATCH); |
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} |
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p++; |
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} |
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/* This is reached if there was a match. So we position to the new item */ |
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Adjust_Current_Item(menu, matchpos, matchitem); |
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RETURN(E_OK); |
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} |
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/* m_pattern.c ends here */ |