mimehead.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

/*
 *
 * MIME header and helper classes 
 *
 */

#ifndef _MIMEHEAD_H_
#define _MIMEHEAD_H_

class CHXString;
class CHXSimpleList;

/*
 * Contains a single name/value pair
 */
class MIMEParameter
{
public:
    CHXString m_attribute;
    CHXString m_value;

    BOOL null() { return (m_value.GetLength() == 0); }
    void asString(CHXString& str);
};

/*
 * Contains a list of parameters for a single header value.
 * Syntax for a header value is:
 *
 *	parameter["=" value] *[;parameter["=" value]]
 */
class MIMEHeaderValue
{
public:
    MIMEHeaderValue();
    MIMEHeaderValue(const char* pAttribute);
    MIMEHeaderValue(const char* pAttribute, const char* pValue);
    virtual ~MIMEHeaderValue();

    void addParameter(const char* pAttribute, const char* pValue);
    void addParameter(const char* pAttribute);
    void addParameter(MIMEParameter* pParam);
    MIMEParameter* getParameter(const char* pAttribute);
    const char* getParameterValue(const char* pAttribute);
    MIMEParameter* getFirstParameter();
    MIMEParameter* getNextParameter();
    virtual void asString(CHXString& str);
    CHXString value();

private:
    void clearParameterList();

    CHXSimpleList m_parameters;
    LISTPOSITION m_listpos;
};

/*
 * Contains a name and a list of header values.
 * Syntax for a header is:
 *
 *	header-name ":" header-value *["," [header-value]]
 *
 */
class MIMEHeader
{
public:
    MIMEHeader(const char* pName);
    virtual ~MIMEHeader();

    const char* name() { return m_name; }
    void addHeaderValue(MIMEHeaderValue* pHeaderValue);
    void addHeaderValue(const char* pValue);
    MIMEHeaderValue* getHeaderValue(const char* pName);
    MIMEHeaderValue* getFirstHeaderValue();
    MIMEHeaderValue* getNextHeaderValue();

    virtual void asString(CHXString& msgStr);

protected:
    void clearHeaderValueList();

    CHXString m_name;
    CHXSimpleList m_headerValues;
    LISTPOSITION m_listpos;
};

#endif /* _MIMEHEAD_H_ */