3171db6ec6
git-svn-id: https://matroska.svn.sourceforge.net/svnroot/matroska/trunk/libebml@44 a6f86f6d-0131-4f8e-9e7b-e335508773d5
135 lines
4.2 KiB
C++
135 lines
4.2 KiB
C++
/****************************************************************************
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** libebml : parse EBML files, see http://embl.sourceforge.net/
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**
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** <file/class description>
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**
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** Copyright (C) 2002-2010 Steve Lhomme. All rights reserved.
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**
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** This file is part of libebml.
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**
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** This library is free software; you can redistribute it and/or
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** modify it under the terms of the GNU Lesser General Public
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** License as published by the Free Software Foundation; either
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** version 2.1 of the License, or (at your option) any later version.
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**
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** This library is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** Lesser General Public License for more details.
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**
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** You should have received a copy of the GNU Lesser General Public
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** License along with this library; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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**
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** See http://www.matroska.org/license/lgpl/ for LGPL licensing information.
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**
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** Contact license@matroska.org if any conditions of this licensing are
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** not clear to you.
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**
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**********************************************************************/
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/*!
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\file
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\version \$Id: EbmlUnicodeString.h 1079 2005-03-03 13:18:14Z robux4 $
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\author Steve Lhomme <robux4 @ users.sf.net>
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\author Moritz Bunkus <moritz @ bunkus.org>
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\author Jory Stone <jcsston @ toughguy.net>
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*/
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#ifndef LIBEBML_UNICODE_STRING_H
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#define LIBEBML_UNICODE_STRING_H
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#include <string>
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#include "EbmlTypes.h"
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#include "EbmlElement.h"
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START_LIBEBML_NAMESPACE
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/*!
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\class UTFstring
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A class storing strings in a wchar_t (ie, in UCS-2 or UCS-4)
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\note inspired by wstring which is not available everywhere
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*/
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class EBML_DLL_API UTFstring {
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public:
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typedef wchar_t value_type;
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UTFstring();
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UTFstring(const wchar_t *); // should be NULL terminated
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UTFstring(const UTFstring &);
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virtual ~UTFstring();
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bool operator==(const UTFstring&) const;
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inline bool operator!=(const UTFstring &cmp) const
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{
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return !(*this == cmp);
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}
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UTFstring & operator=(const UTFstring &);
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UTFstring & operator=(const wchar_t *);
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UTFstring & operator=(wchar_t);
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/// Return length of string
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size_t length() const {return _Length;}
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operator const wchar_t*() const {return _Data;}
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const wchar_t* c_str() const {return _Data;}
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const std::string & GetUTF8() const {return UTF8string;}
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void SetUTF8(const std::string &);
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#if defined(EBML_STRICT_API)
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private:
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#else
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protected:
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#endif
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size_t _Length; ///< length of the UCS string excluding the \0
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wchar_t* _Data; ///< internal UCS representation
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std::string UTF8string;
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static bool wcscmp_internal(const wchar_t *str1, const wchar_t *str2);
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void UpdateFromUTF8();
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void UpdateFromUCS2();
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};
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/*!
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\class EbmlUnicodeString
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\brief Handle all operations on a Unicode string EBML element
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\note internally treated as a string made of wide characters (ie UCS-2 or UCS-4 depending on the machine)
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*/
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class EBML_DLL_API EbmlUnicodeString : public EbmlElement {
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public:
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EbmlUnicodeString();
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EbmlUnicodeString(const UTFstring & DefaultValue);
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EbmlUnicodeString(const EbmlUnicodeString & ElementToClone);
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virtual ~EbmlUnicodeString() {}
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bool ValidateSize() const {return true;} // any size is possible
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filepos_t RenderData(IOCallback & output, bool bForceRender, bool bKeepIntact = false);
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filepos_t ReadData(IOCallback & input, ScopeMode ReadFully = SCOPE_ALL_DATA);
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filepos_t UpdateSize(bool bKeepIntact = false, bool bForceRender = false);
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EbmlUnicodeString & operator=(const UTFstring &); ///< platform dependant code
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operator const UTFstring &() const {return Value;}
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void SetDefaultValue(UTFstring &);
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const UTFstring & DefaultVal() const;
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bool IsDefaultValue() const {
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return (DefaultISset() && Value == DefaultValue);
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}
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#if defined(EBML_STRICT_API)
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private:
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#else
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protected:
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#endif
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UTFstring Value; /// The actual value of the element
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UTFstring DefaultValue;
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};
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END_LIBEBML_NAMESPACE
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#endif // LIBEBML_UNICODE_STRING_H
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