зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
2.4 KiB
C
53 строки
2.4 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsNativeCharsetUtils_h__
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#define nsNativeCharsetUtils_h__
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/*****************************************************************************\
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* *
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* **** NOTICE **** *
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* *
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* *** THESE ARE NOT GENERAL PURPOSE CONVERTERS *** *
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* *
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* NS_CopyNativeToUnicode / NS_CopyUnicodeToNative should only be used *
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* for converting *FILENAMES* between bytes and UTF-16. They are not *
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* designed or tested for general encoding converter use. *
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* *
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* On Windows, these functions convert to and from the system's legacy *
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* code page, which cannot represent all of Unicode. Elsewhere, these *
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* convert to and from UTF-8. *
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* *
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\*****************************************************************************/
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#include "nsError.h"
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#include "nsStringFwd.h"
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/**
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* thread-safe conversion routines that do not depend on uconv libraries.
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*/
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nsresult NS_CopyNativeToUnicode(const nsACString& aInput, nsAString& aOutput);
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nsresult NS_CopyUnicodeToNative(const nsAString& aInput, nsACString& aOutput);
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/*
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* This function indicates whether the character encoding used in the file
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* system (more exactly what's used for |GetNativeFoo| and |SetNativeFoo|
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* of |nsIFile|) is UTF-8 or not. Knowing that helps us avoid an
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* unncessary encoding conversion in some cases. For instance, to get the leaf
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* name in UTF-8 out of nsIFile, we can just use |GetNativeLeafName| rather
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* than using |GetLeafName| and converting the result to UTF-8 if the file
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* system encoding is UTF-8.
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*/
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inline constexpr bool NS_IsNativeUTF8() {
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#ifdef XP_WIN
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return false;
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#else
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return true;
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#endif
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}
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#endif // nsNativeCharsetUtils_h__
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