option-context.c

this is a glib for c language

  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program -t -d", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  g_assert (callback_test_optional_string == NULL);
  
  g_assert (callback_test_optional_boolean);

  g_free (callback_test_optional_string);
  
  g_strfreev (argv);
  g_option_context_free (context);
}

void
callback_test_optional_7 (void)
{
  GOptionContext *context;
  gboolean dummy;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] =
    { { "dummy", 'd', 0, G_OPTION_ARG_NONE, &dummy, NULL },
      { "test", 't', G_OPTION_FLAG_OPTIONAL_ARG, G_OPTION_ARG_CALLBACK, 
	callback_parse_optional, NULL, NULL },
      { NULL } };
  
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program -td", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  g_assert (callback_test_optional_string == NULL);
  
  g_assert (callback_test_optional_boolean);

  g_free (callback_test_optional_string);
  
  g_strfreev (argv);
  g_option_context_free (context);
}

void
callback_test_optional_8 (void)
{
  GOptionContext *context;
  gboolean dummy;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] =
    { { "dummy", 'd', 0, G_OPTION_ARG_NONE, &dummy, NULL },
      { "test", 't', G_OPTION_FLAG_OPTIONAL_ARG, G_OPTION_ARG_CALLBACK, 
	callback_parse_optional, NULL, NULL },
      { NULL } };
  
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program -dt foo.txt", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  g_assert (callback_test_optional_string);
  
  g_assert (callback_test_optional_boolean);

  g_free (callback_test_optional_string);
  
  g_strfreev (argv);
  g_option_context_free (context);
}

static GPtrArray *callback_remaining_args;
static gboolean
callback_remaining_test1_callback (const gchar *option_name, const gchar *value,
		         gpointer data, GError **error)
{
	g_ptr_array_add (callback_remaining_args, g_strdup (value));
	return TRUE;
}

void
callback_remaining_test1 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] =
    { { G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_CALLBACK, callback_remaining_test1_callback, NULL, NULL },
      { NULL } };
  
  callback_remaining_args = g_ptr_array_new ();
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program foo.txt blah.txt", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  g_assert (callback_remaining_args->len == 2);
  g_assert (strcmp (callback_remaining_args->pdata[0], "foo.txt") == 0);
  g_assert (strcmp (callback_remaining_args->pdata[1], "blah.txt") == 0);

  g_ptr_array_foreach (callback_remaining_args, (GFunc) g_free, NULL);
  g_ptr_array_free (callback_remaining_args, TRUE);
  
  g_strfreev (argv);
  g_option_context_free (context);
}

static gboolean
callback_error (const gchar *option_name, const gchar *value,
                gpointer data, GError **error)
{
  g_set_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE, "42");
  return FALSE;
}

static void
callback_returns_false (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] =
    { { "error", 0, 0, G_OPTION_ARG_CALLBACK, callback_error, NULL, NULL },
      { "error-no-arg", 0, G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, callback_error, NULL, NULL },
      { "error-optional-arg", 0, G_OPTION_FLAG_OPTIONAL_ARG, G_OPTION_ARG_CALLBACK, callback_error, NULL, NULL },
      { NULL } };

  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program --error value", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE);
  g_assert (retval == FALSE);

  g_option_context_free (context);
  g_clear_error (&error);

  /* And again, this time with a no-arg variant */
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  argv = split_string ("program --error-no-arg", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE);
  g_assert (retval == FALSE);

  g_option_context_free (context);
  g_clear_error (&error);

  /* And again, this time with a optional arg variant, with argument */
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  argv = split_string ("program --error-optional-arg value", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE);
  g_assert (retval == FALSE);

  g_option_context_free (context);
  g_clear_error (&error);

  /* And again, this time with a optional arg variant, without argument */
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  argv = split_string ("program --error-optional-arg", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_error (error, G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE);
  g_assert (retval == FALSE);

  g_option_context_free (context);
  g_clear_error (&error);
}


void
ignore_test1 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv, **argv_copy;
  int argc;
  gchar *arg;
  GOptionEntry entries [] =
    { { "test", 0, 0, G_OPTION_ARG_NONE, &ignore_test1_boolean, NULL, NULL },
      { NULL } };

  context = g_option_context_new (NULL);
  g_option_context_set_ignore_unknown_options (context, TRUE);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program --test --hello", &argc);
  argv_copy = copy_stringv (argv, argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  /* Check array */
  arg = join_stringv (argc, argv);
  g_assert (strcmp (arg, "program --hello") == 0);

  g_free (arg);
  g_strfreev (argv_copy);
  g_free (argv);
  g_option_context_free (context);
}

void
ignore_test2 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  gchar *arg;
  GOptionEntry entries [] =
    { { "test", 't', 0, G_OPTION_ARG_NONE, &ignore_test2_boolean, NULL, NULL },
      { NULL } };

  context = g_option_context_new (NULL);
  g_option_context_set_ignore_unknown_options (context, TRUE);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program -test", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  /* Check array */
  arg = join_stringv (argc, argv);
  g_assert (strcmp (arg, "program -es") == 0);

  g_free (arg);
  g_strfreev (argv);
  g_option_context_free (context);
}

void
ignore_test3 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv, **argv_copy;
  int argc;
  gchar *arg;
  GOptionEntry entries [] =
    { { "test", 0, 0, G_OPTION_ARG_STRING, &ignore_test3_string, NULL, NULL },
      { NULL } };

  context = g_option_context_new (NULL);
  g_option_context_set_ignore_unknown_options (context, TRUE);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program --test foo --hello", &argc);
  argv_copy = copy_stringv (argv, argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  /* Check array */
  arg = join_stringv (argc, argv);
  g_assert (strcmp (arg, "program --hello") == 0);

  g_assert (strcmp (ignore_test3_string, "foo") == 0);
  g_free (ignore_test3_string);

  g_free (arg);
  g_strfreev (argv_copy);
  g_free (argv);
  g_option_context_free (context);
}

void
array_test1 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] =
    { { "test", 0, 0, G_OPTION_ARG_STRING_ARRAY, &array_test1_array, NULL, NULL },
      { NULL } };
        
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program --test foo --test bar", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  /* Check array */
  g_assert (strcmp (array_test1_array[0], "foo") == 0);
  g_assert (strcmp (array_test1_array[1], "bar") == 0);
  g_assert (array_test1_array[2] == NULL);

  g_strfreev (array_test1_array);
  
  g_strfreev (argv);
  g_option_context_free (context);
}

void
add_test1 (void)
{
  GOptionContext *context;

  GOptionEntry entries1 [] =
    { { "test1", 0, 0, G_OPTION_ARG_STRING_ARRAY, NULL, NULL, NULL },
      { NULL } };
  GOptionEntry entries2 [] =
    { { "test2", 0, 0, G_OPTION_ARG_STRING_ARRAY, NULL, NULL, NULL },
      { NULL } };

  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries1, NULL);
  g_option_context_add_main_entries (context, entries2, NULL);

  g_option_context_free (context);
}

void
empty_test1 (void)
{
  GOptionContext *context;
  GOptionEntry entries [] =
    { { NULL } };
  char *prgname;

  g_set_prgname (NULL);
  context = g_option_context_new (NULL);

  g_option_context_add_main_entries (context, entries, NULL);
  
  g_option_context_parse (context, NULL, NULL, NULL);

  prgname = g_get_prgname ();
  g_assert (prgname && strcmp (prgname, "<unknown>") == 0);
  
  g_option_context_free (context);
}

void
empty_test2 (void)
{
  GOptionContext *context;

  context = g_option_context_new (NULL);
  g_option_context_parse (context, NULL, NULL, NULL);
  
  g_option_context_free (context);
}

void
empty_test3 (void)
{
  GOptionContext *context;
  gint argc;
  gchar **argv;

  argc = 0;
  argv = NULL;

  context = g_option_context_new (NULL);
  g_option_context_parse (context, &argc, &argv, NULL);
  
  g_option_context_free (context);
}

/* check that non-option arguments are left in argv by default */
void
rest_test1 (void)
{
  GOptionContext *context;
  gboolean retval;
  GError *error = NULL;
  gchar **argv;
  int argc;
  GOptionEntry entries [] = { 
      { "test", 0, 0, G_OPTION_ARG_NONE, &ignore_test1_boolean, NULL, NULL },
      { NULL } 
  };
        
  context = g_option_context_new (NULL);
  g_option_context_add_main_entries (context, entries, NULL);

  /* Now try parsing */
  argv = split_string ("program foo --test bar", &argc);
  
  retval = g_option_context_parse (context, &argc, &argv, &error);
  assert_no_error (error);
  g_assert (retval);

  /* Check array */
  g_assert (ignore_test1_boolean);
  g_assert (strcmp (argv[0], "program") == 0);
  g_assert (strcmp (argv[1], "foo") == 0);
  g_assert (strcmp (argv[2], "bar") == 0);
  g_assert (argv[3] == NULL);

  g_strfreev (argv);
  g_option_context_free (context);
}

/* check that -- works */