1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef BASE_I18N_FILE_UTIL_ICU_H_
6 #define BASE_I18N_FILE_UTIL_ICU_H_
8 // File utilities that use the ICU library go in this file.
10 #include "base/files/file_path.h"
11 #include "base/i18n/base_i18n_export.h"
12 #include "base/strings/string16.h"
17 // Returns true if file_name does not have any illegal character. The input
18 // param has the same restriction as that for ReplaceIllegalCharacters.
19 BASE_I18N_EXPORT bool IsFilenameLegal(const string16& file_name);
21 // Replaces characters in |file_name| that are illegal for file names with
22 // |replace_char|. |file_name| must not be a full or relative path, but just the
23 // file name component (since slashes are considered illegal). Any leading or
24 // trailing whitespace or periods in |file_name| is also replaced with the
28 // "bad:file*name?.txt" will be turned into "bad_file_name_.txt" when
29 // |replace_char| is '_'.
31 // Warning: Do not use this function as the sole means of sanitizing a filename.
32 // While the resulting filename itself would be legal, it doesn't necessarily
33 // mean that the file will behave safely. On Windows, certain reserved names
34 // refer to devices rather than files (E.g. LPT1), and some filenames could be
35 // interpreted as shell namespace extensions (E.g. Foo.{<GUID>}).
37 // On Windows, Chrome OS and Mac, the file system encoding is already known and
38 // parsed as UTF-8 and UTF-16 accordingly.
39 // On Linux, the file name will be parsed as UTF8.
40 // TODO(asanka): Move full filename sanitization logic here.
41 BASE_I18N_EXPORT void ReplaceIllegalCharactersInPath(
42 FilePath::StringType* file_name,
45 // Compares two filenames using the current locale information. This can be
46 // used to sort directory listings. It behaves like "operator<" for use in
48 BASE_I18N_EXPORT bool LocaleAwareCompareFilenames(const FilePath& a,
51 // Calculates the canonical file-system representation of |file_name| base name.
52 // Modifies |file_name| in place. No-op if not on ChromeOS.
53 BASE_I18N_EXPORT void NormalizeFileNameEncoding(FilePath* file_name);
58 #endif // BASE_I18N_FILE_UTIL_ICU_H_