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103 lines
4 KiB
C
103 lines
4 KiB
C
/****************************************************************************
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* Copyright 2019-2020,2021 Thomas E. Dickey *
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* Copyright 1998-2012,2014 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: Thomas E. Dickey 1997-on *
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* and: Juergen Pfeifer 2009 *
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****************************************************************************/
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#include "curses.priv.h"
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MODULE_ID("$Id: keyok.c,v 1.17 2021/06/17 21:26:02 tom Exp $")
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/*
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* Enable (or disable) ncurses' interpretation of a keycode by adding (or
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* removing) the corresponding 'tries' entry.
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*
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* Do this by storing a second tree of tries, which records the disabled keys.
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* The simplest way to copy is to make a function that returns the string (with
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* nulls set to 0200), then use that to reinsert the string into the
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* corresponding tree.
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*/
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NCURSES_EXPORT(int)
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NCURSES_SP_NAME(keyok) (NCURSES_SP_DCLx int c, bool flag)
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{
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int code = ERR;
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if (HasTerminal(SP_PARM)) {
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T((T_CALLED("keyok(%p, %d,%d)"), (void *) SP_PARM, c, flag));
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#ifdef USE_TERM_DRIVER
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code = CallDriver_2(sp, td_kyOk, c, flag);
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#else
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if (c >= 0) {
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int count = 0;
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char *s;
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unsigned ch = (unsigned) c;
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if (flag) {
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while ((s = _nc_expand_try(SP_PARM->_key_ok,
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ch, &count, (size_t) 0)) != 0) {
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if (_nc_remove_key(&(SP_PARM->_key_ok), ch)) {
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code = _nc_add_to_try(&(SP_PARM->_keytry), s, ch);
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free(s);
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count = 0;
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if (code != OK)
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break;
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} else {
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free(s);
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}
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}
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} else {
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while ((s = _nc_expand_try(SP_PARM->_keytry,
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ch, &count, (size_t) 0)) != 0) {
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if (_nc_remove_key(&(SP_PARM->_keytry), ch)) {
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code = _nc_add_to_try(&(SP_PARM->_key_ok), s, ch);
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free(s);
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count = 0;
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if (code != OK)
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break;
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} else {
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free(s);
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}
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}
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}
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}
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#endif
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}
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returnCode(code);
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}
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#if NCURSES_SP_FUNCS
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NCURSES_EXPORT(int)
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keyok(int c, bool flag)
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{
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return NCURSES_SP_NAME(keyok) (CURRENT_SCREEN, c, flag);
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}
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#endif
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