base/i18n/file_util_icu.h

   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.
   4
   5 #ifndef BASE_I18N_FILE_UTIL_ICU_H_
   6 #define BASE_I18N_FILE_UTIL_ICU_H_
   7
   8 // File utilities that use the ICU library go in this file.
   9
  10 #include "base/files/file_path.h"
  11 #include "base/i18n/base_i18n_export.h"
  12 #include "base/strings/string16.h"
  13
  14 namespace base {
  15 namespace i18n {
  16
  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);
  20
  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
  25 // |replace_char|.
  26 //
  27 // Example:
  28 //   "bad:file*name?.txt" will be turned into "bad_file_name_.txt" when
  29 //   |replace_char| is '_'.
  30 //
  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>}).
  36 //
  37 // TODO(asanka): Move full filename sanitization logic here.
  38 BASE_I18N_EXPORT void ReplaceIllegalCharactersInPath(
  39     FilePath::StringType* file_name,
  40     char replace_char);
  41
  42 // Compares two filenames using the current locale information. This can be
  43 // used to sort directory listings. It behaves like "operator<" for use in
  44 // std::sort.
  45 BASE_I18N_EXPORT bool LocaleAwareCompareFilenames(const FilePath& a,
  46                                                   const FilePath& b);
  47
  48 // Calculates the canonical file-system representation of |file_name| base name.
  49 // Modifies |file_name| in place. No-op if not on ChromeOS.
  50 BASE_I18N_EXPORT void NormalizeFileNameEncoding(FilePath* file_name);
  51
  52 }  // namespace i18n
  53 }  // namespace base
  54
  55 #endif  // BASE_I18N_FILE_UTIL_ICU_H_