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/****************************************************************************
* Copyright 2022 Thomas E. Dickey *
* *
* 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. *
****************************************************************************/
/*
* $Id: test_unget_wch.c,v 1.4 2022/12/10 23:31:31 tom Exp $
*
* Demonstrate the unget_wch and unget functions.
*/
#include <test.priv.h>
#if USE_WIDEC_SUPPORT && HAVE_UNGET_WCH
static void
usage(int ok)
{
static const char *msg[] =
{
"Usage: test_unget_wch [options]"
,""
,USAGE_COMMON
};
size_t n;
for (n = 0; n < SIZEOF(msg); n++)
fprintf(stderr, "%s\n", msg[n]);
ExitProgram(ok ? EXIT_SUCCESS : EXIT_FAILURE);
}
/* *INDENT-OFF* */
VERSION_COMMON()
/* *INDENT-ON* */
int
main(int argc, char *argv[])
{
int step = 0;
int ch;
while ((ch = getopt(argc, argv, OPTS_COMMON)) != -1) {
switch (ch) {
case OPTS_VERSION:
show_version(argv);
ExitProgram(EXIT_SUCCESS);
default:
usage(ch == OPTS_USAGE);
/* NOTREACHED */
}
}
if (optind < argc)
usage(FALSE);
setlocale(LC_ALL, "");
initscr();
keypad(stdscr, TRUE);
cbreak();
noecho();
scrollok(stdscr, TRUE);
for (;;) {
wint_t widechar;
int rc = get_wch(&widechar);
if (rc == KEY_CODE_YES) {
printw("KEY[%d] %s\n", ++step, keyname((int) widechar));
ungetch((int) widechar);
printw("...[%d] %s\n", step, keyname(getch()));
} else if (widechar == QUIT || widechar == ESCAPE) {
break;
} else {
printw("CHR[%d] %s\n", ++step, key_name((wchar_t) widechar));
unget_wch((wchar_t) widechar);
rc = get_wch(&widechar);
printw("%s[%d] %s\n",
((rc == KEY_CODE_YES)
? "???"
: "..."),
step, key_name((wchar_t) widechar));
}
}
endwin();
ExitProgram(EXIT_SUCCESS);
}
#else
int
main(void)
{
printf("This program requires the wide-ncurses library\n");
ExitProgram(EXIT_FAILURE);
}
#endif
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