зеркало из https://github.com/mozilla/gecko-dev.git
93 строки
3.6 KiB
C
Executable File
93 строки
3.6 KiB
C
Executable File
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Original Author:
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* Scott Collins <scc@mozilla.org>
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*
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* Contributor(s):
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*/
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#ifndef nsReadableUtils_h___
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#define nsReadableUtils_h___
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#include "nsAReadableString.h"
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#include "nsAWritableString.h"
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/**
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* Returns a new |char| buffer containing a zero-terminated copy of |aSource|.
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*
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* Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
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* Performs a lossy encoding conversion by chopping 16-bit wide characters down to 8-bits wide while copying |aSource| to your new buffer.
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* This conversion is not well defined; but it reproduces legacy string behavior.
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* The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
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*
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* @param aSource a 16-bit wide string
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* @return a new |char| buffer you must free with |nsMemory::Free|.
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*/
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NS_COM char* ToNewCString( const nsAReadableString& aSource );
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/**
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* Returns a new |char| buffer containing a zero-terminated copy of |aSource|.
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*
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* Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
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* The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
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*
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* @param aSource an 8-bit wide string
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* @return a new |char| buffer you must free with |nsMemory::Free|.
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*/
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NS_COM char* ToNewCString( const nsAReadableCString& aSource );
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/**
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* Returns a new |PRUnichar| buffer containing a zero-terminated copy of |aSource|.
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*
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* Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
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* The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
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*
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* @param aSource a 16-bit wide string
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* @return a new |PRUnichar| buffer you must free with |nsMemory::Free|.
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*/
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NS_COM PRUnichar* ToNewUnicode( const nsAReadableString& aSource );
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/**
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* Returns a new |PRUnichar| buffer containing a zero-terminated copy of |aSource|.
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*
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* Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
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* Performs an encoding conversion by 0-padding 8-bit wide characters up to 16-bits wide while copying |aSource| to your new buffer.
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* This conversion is not well defined; but it reproduces legacy string behavior.
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* The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
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*
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* @param aSource an 8-bit wide string
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* @return a new |PRUnichar| buffer you must free with |nsMemory::Free|.
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*/
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NS_COM PRUnichar* ToNewUnicode( const nsAReadableCString& aSource );
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/**
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* Returns |PR_TRUE| if |aString| contains only ASCII characters, that is, characters in the range (0x00, 0x7F).
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*
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* @param aString a 16-bit wide string to scan
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*/
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NS_COM PRBool IsASCII( const nsAReadableString& aString );
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#endif // !defined(nsReadableUtils_h___)
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