Quelle nsNativeCharsetUtils.h Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsNativeCharsetUtils_h__
#define nsNativeCharsetUtils_h__

/*****************************************************************************\
*                                                                           *
*                             **** NOTICE ****                              *
*                                                                           *
*             *** THESE ARE NOT GENERAL PURPOSE CONVERTERS ***              *
*                                                                           *
*    NS_CopyNativeToUnicode / NS_CopyUnicodeToNative should only be used    *
*    for converting *FILENAMES* between bytes and UTF-16. They are not      *
*    designed or tested for general encoding converter use.                 *
*                                                                           *
*    On Windows, these functions convert to and from the system's legacy    *
*    code page, which cannot represent all of Unicode. Elsewhere, these     *
*    convert to and from UTF-8.                                             *
*                                                                           *
\*****************************************************************************/

#include "nsError.h"
#include "nsStringFwd.h"

/**
* thread-safe conversion routines that do not depend on uconv libraries.
*/
nsresult NS_CopyNativeToUnicode(const nsACString& aInput, nsAString& aOutput);
nsresult NS_CopyUnicodeToNative(const nsAString& aInput, nsACString& aOutput);

/*
* This function indicates whether the character encoding used in the file
* system (more exactly what's used for |GetNativeFoo| and |SetNativeFoo|
* of |nsIFile|) is UTF-8 or not. Knowing that helps us avoid an
* unncessary encoding conversion in some cases. For instance, to get the leaf
* name in UTF-8 out of nsIFile, we can just use |GetNativeLeafName| rather
* than using |GetLeafName| and converting the result to UTF-8 if the file
* system  encoding is UTF-8.
*/
inline constexpr bool NS_IsNativeUTF8() {
#ifdef XP_WIN
  return false;
#else
  return true;
#endif
}

#endif  // nsNativeCharsetUtils_h__

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