/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2005,2006 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 1.3 1999/11/13 23:39:19 tom Exp $
+ * $Id: filter.c,v 1.11 2006/12/09 16:53:47 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
* and refresh(), but that does not work any better.
*/
-#ifndef NCURSES_VERSION
-#define attr_t long
-#define getnstr(s,n) getstr(s)
-#endif
-
-static int new_command(char *buffer, int length, attr_t underline)
+static int
+new_command(char *buffer, int length, attr_t underline)
{
- int code;
+ int code;
- attron(A_BOLD);
- printw("Command: ");
- attron(underline);
- code = getnstr(buffer, length);
- attroff(underline);
- attroff(A_BOLD);
- printw("\n");
+ attron(A_BOLD);
+ 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;
+ return code;
}
-int main(
- int argc GCC_UNUSED,
- char *argv[] GCC_UNUSED)
+int
+main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
{
- SCREEN *sp;
- char buffer[80];
- attr_t underline;
+ char buffer[80];
+ attr_t underline;
+
+ setlocale(LC_ALL, "");
- filter();
- sp = newterm((char *)0, stdout, stdin);
- cbreak();
- keypad(stdscr, TRUE);
+ filter();
+ (void) newterm((char *) 0, stdout, stdin);
+ cbreak();
+ keypad(stdscr, TRUE);
- if (has_colors()) {
- int background = COLOR_BLACK;
- start_color();
-#ifdef HAVE_USE_DEFAULT_COLORS
- if (use_default_colors () != ERR)
- background = -1;
+ if (has_colors()) {
+ int background = COLOR_BLACK;
+ start_color();
+#if HAVE_USE_DEFAULT_COLORS
+ if (use_default_colors() != ERR)
+ background = -1;
#endif
- init_pair(1, COLOR_CYAN, background);
- underline = COLOR_PAIR(1);
- } else {
- underline = A_UNDERLINE;
- }
+ init_pair(1, COLOR_CYAN, background);
+ underline = COLOR_PAIR(1);
+ } else {
+ underline = A_UNDERLINE;
+ }
- while (new_command(buffer, sizeof(buffer)-1, underline) != ERR
- && strlen(buffer) != 0) {
- reset_shell_mode();
- printf("\n");
- fflush(stdout);
- system(buffer);
- reset_prog_mode();
- touchwin(stdscr);
- erase();
- refresh();
- }
- printw("done");
+ while (new_command(buffer, sizeof(buffer) - 1, underline) != ERR
+ && strlen(buffer) != 0) {
+ reset_shell_mode();
+ printf("\n");
+ fflush(stdout);
+ system(buffer);
+ reset_prog_mode();
+ touchwin(stdscr);
+ erase();
refresh();
- endwin();
- return 0;
+ }
+ printw("done");
+ refresh();
+ endwin();
+ ExitProgram(EXIT_SUCCESS);
+}
+#else
+int
+main(void)
+{
+ printf("This program requires the filter function\n");
+ ExitProgram(EXIT_FAILURE);
}
+#endif /* HAVE_FILTER */