1/**************************************************************************** 2 * Copyright (c) 2003,2006 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: Thomas E. Dickey, 2003 * 31 ****************************************************************************/ 32 33#include <curses.priv.h> 34 35MODULE_ID("$Id: key_defined.c,v 1.6 2006/12/30 23:22:55 tom Exp $") 36 37static int 38find_definition(TRIES * tree, const char *str) 39{ 40 TRIES *ptr; 41 int result = OK; 42 43 if (str != 0 && *str != '\0') { 44 for (ptr = tree; ptr != 0; ptr = ptr->sibling) { 45 if (UChar(*str) == UChar(ptr->ch)) { 46 if (str[1] == '\0' && ptr->child != 0) { 47 result = ERR; 48 } else if ((result = find_definition(ptr->child, str + 1)) 49 == OK) { 50 result = ptr->value; 51 } else if (str[1] == '\0') { 52 result = ERR; 53 } 54 } 55 if (result != OK) 56 break; 57 } 58 } 59 return (result); 60} 61 62/* 63 * Returns the keycode associated with the given string. If none is found, 64 * return OK. If the string is only a prefix to other strings, return ERR. 65 * Otherwise, return the keycode's value (neither OK/ERR). 66 */ 67NCURSES_EXPORT(int) 68key_defined(const char *str) 69{ 70 int code = ERR; 71 72 T((T_CALLED("key_defined(%s)"), _nc_visbuf(str))); 73 if (SP != 0 && str != 0) { 74 code = find_definition(SP->_keytry, str); 75 } 76 77 returnCode(code); 78} 79