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Diffstat (limited to 'test/test_unget_wch.c')
| -rw-r--r-- | test/test_unget_wch.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/test/test_unget_wch.c b/test/test_unget_wch.c new file mode 100644 index 000000000000..58085304c90c --- /dev/null +++ b/test/test_unget_wch.c @@ -0,0 +1,116 @@ +/**************************************************************************** + * 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 |