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86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/* GNU gettext - internationalization aids
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Copyright (C) 1996, 1998, 2000-2002, 2006 Free Software Foundation, Inc.
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This file was written by Peter Miller <millerp@canb.auug.org.au>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* Specification. */
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#include "dir-list.h"
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#include <stddef.h>
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#include <stdlib.h>
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#include "str-list.h"
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static string_list_ty *directory /* = NULL */;
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/* Append a directory to the end of the list of directories. */
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void
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dir_list_append (const char *s)
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{
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if (directory == NULL)
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directory = string_list_alloc ();
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string_list_append_unique (directory, s);
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}
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/* Return the nth directory, or NULL of n is out of range. */
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const char *
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dir_list_nth (int n)
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{
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/* The default value of the list consists of the single directory ".". */
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if (directory == NULL)
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dir_list_append (".");
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if (n < 0 || n >= directory->nitems)
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return NULL;
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return directory->item[n];
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}
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/* Return the current list of directories, for later use with dir_list_restore.
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Reset the list to empty. */
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void *
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dir_list_save_reset ()
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{
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void *saved_value = directory;
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directory = NULL;
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return saved_value;
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}
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/* Restore a previously saved list of directories. */
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void
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dir_list_restore (void *saved_value)
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{
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/* Don't free the contained strings, because they may have been returned
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by dir_list_nth and may still be in use. */
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if (directory != NULL)
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{
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if (directory->item != NULL)
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free (directory->item);
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free (directory);
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}
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directory = (string_list_ty *) saved_value;
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}
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