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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */

/* eel-vfs-extensions.c - mate-vfs extensions.  Its likely some of these will
                          be part of mate-vfs in the future.

   Copyright (C) 1999, 2000 Eazel, Inc.

   The Mate Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The Mate Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the Mate Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
   Boston, MA 02110-1301, USA.

   Authors: Darin Adler <darin@eazel.com>
	    Pavel Cisler <pavel@eazel.com>
	    Mike Fleming  <mfleming@eazel.com>
            John Sullivan <sullivan@eazel.com>
*/

#include <config.h>
#include "eel-vfs-extensions.h"
#include "eel-glib-extensions.h"
#include "eel-lib-self-check-functions.h"
#include <glib.h>
#include <glib/gi18n-lib.h>
#include <gio/gio.h>

#include "eel-string.h"

#include <string.h>
#include <stdlib.h>

gboolean
eel_uri_is_trash (const char *uri)
{
    return eel_istr_has_prefix (uri, "trash:");
}

gboolean
eel_uri_is_search (const char *uri)
{
    return eel_istr_has_prefix (uri, EEL_SEARCH_URI);
}

gboolean
eel_uri_is_desktop (const char *uri)
{
    return eel_istr_has_prefix (uri, EEL_DESKTOP_URI);
}

char *
eel_make_valid_utf8 (const char *name)
{
    GString *string;
    const char *remainder, *invalid;
    int remaining_bytes, valid_bytes;

    string = NULL;
    remainder = name;
    remaining_bytes = strlen (name);

    while (remaining_bytes != 0)
    {
        if (g_utf8_validate (remainder, remaining_bytes, &invalid))
        {
            break;
        }
        valid_bytes = invalid - remainder;

        if (string == NULL)
        {
            string = g_string_sized_new (remaining_bytes);
        }
        g_string_append_len (string, remainder, valid_bytes);
        g_string_append_c (string, '?');

        remaining_bytes -= valid_bytes + 1;
        remainder = invalid + 1;
    }

    if (string == NULL)
    {
        return g_strdup (name);
    }

    g_string_append (string, remainder);
    g_string_append (string, _(" (invalid Unicode)"));
    g_assert (g_utf8_validate (string->str, -1, NULL));

    return g_string_free (string, FALSE);
}

char *
eel_filename_strip_extension (const char * filename_with_extension)
{
    char *filename, *end, *end2;

    if (filename_with_extension == NULL)
    {
        return NULL;
    }

    filename = g_strdup (filename_with_extension);

    end = strrchr (filename, '.');

    if (end && end != filename)
    {
        if (strcmp (end, ".gz") == 0 ||
                strcmp (end, ".bz2") == 0 ||
                strcmp (end, ".sit") == 0 ||
                strcmp (end, ".Z") == 0)
        {
            end2 = end - 1;
            while (end2 > filename &&
                    *end2 != '.')
            {
                end2--;
            }
            if (end2 != filename)
            {
                end = end2;
            }
        }
        *end = '\0';
    }

    return filename;
}

void
eel_filename_get_rename_region (const char           *filename,
                                int                  *start_offset,
                                int                  *end_offset)
{
    char *filename_without_extension;

    g_return_if_fail (start_offset != NULL);
    g_return_if_fail (end_offset != NULL);

    *start_offset = 0;
    *end_offset = 0;

    g_return_if_fail (filename != NULL);

    filename_without_extension = eel_filename_strip_extension (filename);
    *end_offset = g_utf8_strlen (filename_without_extension, -1);

    g_free (filename_without_extension);
}