/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2011,2012 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 *
/*
* Author: Thomas E. Dickey <dickey@clark.net> 1998
*
- * $Id: filter.c,v 1.8 2004/06/05 21:57:30 tom Exp $
+ * $Id: filter.c,v 1.15 2012/06/09 20:30:32 tom Exp $
*/
#include <test.priv.h>
+#if HAVE_FILTER
+
/*
* An example of the 'filter()' function in ncurses, this program prompts
* for commands and executes them (like a command shell). It illustrates
printw("Command: ");
attron(underline);
code = getnstr(buffer, length);
+ /*
+ * If this returns anything except ERR/OK, it would be one of ncurses's
+ * extensions. Fill the buffer with something harmless that the shell
+ * will execute as a comment.
+ */
+#ifdef KEY_EVENT
+ if (code == KEY_EVENT)
+ strcpy(buffer, "# event!");
+#endif
+#ifdef KEY_RESIZE
+ if (code == KEY_RESIZE) {
+ strcpy(buffer, "# resize!");
+ getch();
+ }
+#endif
attroff(underline);
attroff(A_BOLD);
printw("\n");
return code;
}
+static void
+usage(void)
+{
+ static const char *msg[] =
+ {
+ "Usage: filter [options]"
+ ,""
+ ,"Options:"
+ ," -i use initscr() rather than newterm()"
+ };
+ unsigned n;
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+ ExitProgram(EXIT_FAILURE);
+}
+
int
-main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+main(int argc, char *argv[])
{
+ int ch;
char buffer[80];
attr_t underline;
+ bool i_option = FALSE;
setlocale(LC_ALL, "");
+ while ((ch = getopt(argc, argv, "i")) != -1) {
+ switch (ch) {
+ case 'i':
+ i_option = TRUE;
+ break;
+ default:
+ usage();
+ }
+ }
+
+ printf("starting filter program using %s...\n",
+ i_option ? "initscr" : "newterm");
filter();
- (void) newterm((char *) 0, stdout, stdin);
+ if (i_option) {
+ initscr();
+ } else {
+ (void) newterm((char *) 0, stdout, stdin);
+ }
cbreak();
keypad(stdscr, TRUE);
if (use_default_colors() != ERR)
background = -1;
#endif
- init_pair(1, COLOR_CYAN, background);
- underline = COLOR_PAIR(1);
+ init_pair(1, COLOR_CYAN, (short) background);
+ underline = (attr_t) COLOR_PAIR(1);
} else {
underline = A_UNDERLINE;
}
reset_shell_mode();
printf("\n");
fflush(stdout);
- system(buffer);
+ IGNORE_RC(system(buffer));
reset_prog_mode();
touchwin(stdscr);
erase();
endwin();
ExitProgram(EXIT_SUCCESS);
}
+#else
+int
+main(void)
+{
+ printf("This program requires the filter function\n");
+ ExitProgram(EXIT_FAILURE);
+}
+#endif /* HAVE_FILTER */