mimescan.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: mimescan.h,v 1.2.36.1 2004/07/09 02:05:21 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 ***** */
- /*
- * Tokenizer and buffered input classes to scan MIME messages
- */
- #ifndef _MIMESCAN_H_
- #define _MIMESCAN_H_
- #include <ctype.h>
- #include "hxstring.h"
- class MIMEInputStream
- {
- public:
- MIMEInputStream(const char* pBuf, UINT32 nBufLen);
- MIMEInputStream(const CHXString& str);
- ~MIMEInputStream();
- int read();
- int peek();
- int read(char* pBuf, UINT32 nBufLen);
- UINT32 available();
- UINT32 offset() { return (!m_bUndoValid) ? m_nCurOffset : m_nCurOffset-1; }
- UINT32 length() { return m_nBufSize; }
- void putBack(int ch)
- {
- // If somone tries to push back a EOF ignore it..
- if(ch != -1)
- {
- m_bUndoValid = TRUE;
- m_nUndo = ch;
- }
- }
- UINT32 max_distance_to(char* p);
- private:
- char* m_pBuffer;
- UINT32 m_nBufSize;
- UINT32 m_nCurOffset;
- BOOL m_bUndoValid;
- int m_nUndo;
- };
- /*
- * Stores the token string and the last character for look-ahead
- */
- class MIMEToken
- {
- public:
- enum { T_EOF=-1, T_EOL='n' };
- MIMEToken():
- m_value(""),
- m_lastChar(-1)
- {}
- MIMEToken(const char* value, char lastChar):
- m_value(value),
- m_lastChar(lastChar)
- {}
- MIMEToken(char lastChar):
- m_value(""),
- m_lastChar(lastChar)
- {}
- const CHXString& value() { return m_value; }
- const signed char lastChar() { return m_lastChar; }
- int hasValue();
- private:
- CHXString m_value;
- int m_lastChar;
- };
- inline int
- MIMEToken::hasValue()
- {
- int b = 0;
- for(unsigned int i=0; i < m_value.GetLength(); i++)
- if(!isspace(m_value[i]))
- b = 1;
- return b;
- }
- class MIMEScanner
- {
- public:
- MIMEScanner(MIMEInputStream& input);
- ~MIMEScanner();
- MIMEToken nextToken(char* upTo = 0);
- UINT32 offset() { return m_input.offset(); }
- UINT32 length() { return m_input.length(); }
- private:
- void skipWS();
- CHXString m_tokstr;
- CHXString m_line;
- MIMEInputStream& m_input;
- };
- #endif /* _MIMESCAN_H_ */