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/* $OpenBSD: key_defined.c,v 1.2 2023/10/17 09:52:08 nicm Exp $ */
/****************************************************************************
* Copyright 2020,2023 Thomas E. Dickey *
* Copyright 2003-2006,2009 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Thomas E. Dickey, 2003 *
****************************************************************************/
#include <curses.priv.h>
#include <tic.h>
MODULE_ID("$Id: key_defined.c,v 1.2 2023/10/17 09:52:08 nicm Exp $")
static int
find_definition(TRIES * tree, const char *str)
{
TRIES *ptr;
int result = OK;
if (VALID_STRING(str) && *str != '\0') {
for (ptr = tree; ptr != 0; ptr = ptr->sibling) {
if (UChar(*str) == UChar(ptr->ch)) {
if (str[1] == '\0' && ptr->child != 0) {
result = ERR;
} else if ((result = find_definition(ptr->child, str + 1))
== OK) {
result = ptr->value;
} else if (str[1] == '\0') {
result = ERR;
}
}
if (result != OK)
break;
}
}
return (result);
}
/*
* Returns the keycode associated with the given string. If none is found,
* return OK. If the string is only a prefix to other strings, return ERR.
* Otherwise, return the keycode's value (neither OK/ERR).
*/
NCURSES_EXPORT(int)
NCURSES_SP_NAME(key_defined) (NCURSES_SP_DCLx const char *str)
{
int code = ERR;
T((T_CALLED("key_defined(%p, %s)"), (void *) SP_PARM, _nc_visbuf(str)));
if (SP_PARM != 0 && str != 0) {
code = find_definition(SP_PARM->_keytry, str);
}
returnCode(code);
}
#if NCURSES_SP_FUNCS
NCURSES_EXPORT(int)
key_defined(const char *str)
{
return NCURSES_SP_NAME(key_defined) (CURRENT_SCREEN, str);
}
#endif
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