1/**************************************************************************** 2 * Copyright (c) 2003 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 1.3 2003/05/17 23:12:27 tom Exp $") 36 37static int 38find_definition(struct tries *tree, const char *str) 39{ 40 struct tries *ptr; 41 int result = 0; 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 = -1; 48 } else if ((result = find_definition(ptr->child, str + 1)) == 0) { 49 result = ptr->value; 50 } else if (str[1] == '\0') { 51 result = -1; 52 } 53 } 54 if (result != 0) 55 break; 56 } 57 } 58 return (result); 59} 60 61/* 62 * Returns the keycode associated with the given string. If none is found, 63 * return 0. If the string is only a prefix to other strings, return -1. 64 */ 65NCURSES_EXPORT(int) 66key_defined(const char *str) 67{ 68 int code = ERR; 69 70 T((T_CALLED("key_defined(%s)"), _nc_visbuf(str))); 71 if (SP != 0 && str != 0) { 72 code = find_definition(SP->_keytry, str); 73 } 74 75 returnCode(code); 76} 77