ncurses 5.7 - patch 20090905

[ncurses.git] / test / filter.c

diff --git a/test/filter.c b/test/filter.c
index 8fbda25e7ad11a8d3878b2d4576ef5f5f664f6c2..561a35b9274a5c0fcefc821e4d879846dbcf50c5 100644 (file)
--- a/test/filter.c
+++ b/test/filter.c
@@ -1,5 +1,5 @@
 /****************************************************************************
 /****************************************************************************

- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2006,2008 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            *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *


@@ -29,10 +29,12 @@
 /*
  * Author:  Thomas E. Dickey <dickey@clark.net> 1998
  *
 /*
  * 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 1.12 2008/12/06 21:59:27 tom Exp $

  */
 #include <test.priv.h>
 
  */
 #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
 /*
  * An example of the 'filter()' function in ncurses, this program prompts
  * for commands and executes them (like a command shell).  It illustrates


@@ -54,6 +56,21 @@ new_command(char *buffer, int length, attr_t underline)
     printw("Command: ");
     attron(underline);
     code = getnstr(buffer, length);
     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");
     attroff(underline);
     attroff(A_BOLD);
     printw("\n");


@@ -61,16 +78,50 @@ new_command(char *buffer, int length, attr_t underline)
     return code;
 }
 
     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
 int

-main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
+main(int argc, char *argv[])

 {
 {

+    int ch;

     char buffer[80];
     attr_t underline;
     char buffer[80];
     attr_t underline;

+    bool i_option = FALSE;

 
     setlocale(LC_ALL, "");
 
 
     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();
     filter();

-    (void) newterm((char *) 0, stdout, stdin);
+    if (i_option) {
+       initscr();
+    } else {
+       (void) newterm((char *) 0, stdout, stdin);
+    }

     cbreak();
     keypad(stdscr, TRUE);
 
     cbreak();
     keypad(stdscr, TRUE);
 


@@ -103,3 +154,11 @@ main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
     endwin();
     ExitProgram(EXIT_SUCCESS);
 }
     endwin();
     ExitProgram(EXIT_SUCCESS);
 }

+#else
+int
+main(void)
+{
+    printf("This program requires the filter function\n");
+    ExitProgram(EXIT_FAILURE);
+}
+#endif /* HAVE_FILTER */