зеркало из https://github.com/mozilla/pjs.git
94 строки
3.2 KiB
C
94 строки
3.2 KiB
C
/* -*- 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.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications. Portions created by Netscape Communications are
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* Copyright (C) 2001 by Netscape Communications. All
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* Rights Reserved.
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*
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* Contributor(s):
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* Scott Collins <scc@mozilla.org> (original author)
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*/
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#ifndef nsLiteralString_h___
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#define nsLiteralString_h___
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#ifndef nscore_h___
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#include "nscore.h"
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#endif
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#ifndef nsDependentString_h___
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#include "nsDependentString.h"
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#endif
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#if 0
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inline
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const nsDependentString
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literal_string( const nsAString::char_type* aPtr )
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{
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return nsDependentString(aPtr);
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}
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inline
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const nsDependentString
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literal_string( const nsAString::char_type* aPtr, PRUint32 aLength )
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{
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return nsDependentString(aPtr, aLength);
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}
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inline
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const nsDependentCString
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literal_string( const nsACString::char_type* aPtr )
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{
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return nsDependentCString(aPtr);
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}
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inline
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const nsDependentCString
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literal_string( const nsACString::char_type* aPtr, PRUint32 aLength )
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{
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return nsDependentCString(aPtr, aLength);
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}
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#endif
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#ifdef HAVE_CPP_2BYTE_WCHAR_T
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#define NS_LL(s) L##s
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#define NS_MULTILINE_LITERAL_STRING(s) nsDependentString(NS_REINTERPRET_CAST(const nsAString::char_type*, s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
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#define NS_NAMED_MULTILINE_LITERAL_STRING(n,s) nsDependentString n(NS_REINTERPRET_CAST(const nsAString::char_type*, s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
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#else
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#define NS_LL(s) s
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#define NS_MULTILINE_LITERAL_STRING(s) NS_ConvertASCIItoUCS2(s, PRUint32(sizeof(s)-1))
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#define NS_NAMED_MULTILINE_LITERAL_STRING(n,s) NS_ConvertASCIItoUCS2 n(s, PRUint32(sizeof(s)-1))
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#endif
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/*
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* Macro arguments used in concatenation or stringification won't be expanded.
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* Therefore, in order for |NS_L(FOO)| to work as expected (which is to expand
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* |FOO| before doing whatever |NS_L| needs to do to it) a helper macro needs
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* to be inserted in between to allow the macro argument to expand.
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* See "3.10.6 Separate Expansion of Macro Arguments" of the CPP manual for a
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* more accurate and precise explanation.
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*/
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#define NS_L(s) NS_LL(s)
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#define NS_LITERAL_STRING(s) NS_STATIC_CAST(const nsAFlatString&, NS_MULTILINE_LITERAL_STRING(NS_LL(s)))
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#define NS_NAMED_LITERAL_STRING(n,s) NS_NAMED_MULTILINE_LITERAL_STRING(n, NS_LL(s))
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#define NS_LITERAL_CSTRING(s) nsDependentCString(s, PRUint32(sizeof(s)-1))
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#define NS_NAMED_LITERAL_CSTRING(n,s) nsDependentCString n(s, PRUint32(sizeof(s)-1))
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#endif /* !defined(nsLiteralString_h___) */
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