test/testscanw.c

/****************************************************************************
 * Copyright 2019-2020,2022 Thomas E. Dickey                                *
 * Copyright 1998-2002,2006 Free Software Foundation, Inc.                  *
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/* gleaned from a web-search, shows a bug combining scanw and implicit scroll.
 * Date:  1997/03/17
 * From:  bayern@morpheus.cis.yale.edu
 *
 * $Id: testscanw.c,v 1.15 2022/12/11 00:10:29 tom Exp $
 */
#include <test.priv.h>

static void
usage(int ok)
{
    static const char *msg[] =
    {
	"Usage: testscanw [options] tokens"
	,""
	,"Tokens are integers (starting line-number) or k+, k- to turn keypad on/off."
	,""
	,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[])
{
    long badanswer = 1;
    long *response = &badanswer;
    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 */
	}
    }

    setlocale(LC_ALL, "");

    initscr();
    scrollok(stdscr, TRUE);
    idlok(stdscr, TRUE);
    echo();

#if 0
    curses_trace(TRACE_UPDATE | TRACE_CALLS);
#endif
    while (optind < argc) {
	char *token = argv[optind++];
	if (isdigit(UChar(*token)))
	    move(atoi(token), 0);
	else if (!strcmp(token, "k+"))
	    keypad(stdscr, TRUE);
	else if (!strcmp(token, "k-"))
	    keypad(stdscr, FALSE);
    }

    while (badanswer) {
	printw("Enter a number (0 to quit):\n");
	printw("--> ");
	scanw("%20ld", response);	/* yes, it's a pointer */
    }
    endwin();
    ExitProgram(EXIT_SUCCESS);
}