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-/*
- * Copyright (c) 2004, Nate Nielsen
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * * Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions and
- * the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- * * The names of contributors to this software may not be
- * used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
- * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- *
- * CONTRIBUTORS
- * Nate Nielsen <nielsen@memberwebs.com>
- *
- */
-
-#ifndef __RTFPARSER_H__
-#define __RTFPARSER_H__
-
-#include "usuals.h"
-#include <stack>
-#include <stdio.h>
-
-class RtfHandler;
-
-/*
- * RtfParser
- *
- * A class that parses the RTF into it's tags and groups etc... It feeds its
- * parsed data into into a handler interface (see below) for processing.
- *
- * Performs some basic conversion and sanity checking (unicode chars etc...)
- * as well.
- */
-class RtfParser
-{
-public:
- RtfParser();
- virtual ~RtfParser();
-
- bool parse(string fileName);
- bool parse(FILE* file);
-
- void setHandler(RtfHandler* handler)
- { m_handler = handler; }
- string getParseErrors() const
- { return m_parseErrors; }
- int getDepth() const
- { return m_depth; }
- void setHexParse(bool parse)
- { m_parseHex = parse; }
- void setUnicode(bool unicode);
-
-protected:
- RtfHandler* m_handler; // The current handler
- int m_depth; // To keep track of group depth
- bool m_parseHex; // Whether to parse hex chars or not
- string m_parseErrors; // A list of all the RTF parsing errors
-
- // TODO: Look at exactly what this is doing
- // Unicode char handling
- bool m_parseUnicode;
- typedef std::stack<int> StackInt;
- StackInt m_uniEatStack;
- int m_uniEat;
-
- FILE* m_file; // The file we're currently parsing
- wstring m_dataBuffer; // The block of data we're caching to send
-
-private:
-
- // Parse helpers
- bool parseControlWord();
- bool parseHexChar(int num);
-
- // Convenience functions for calling the handler
- void sendControlWord(string cw, int flags, int param);
- void sendData(wchar_t ch);
- void sendData(wstring data);
- void flushData();
-};
-
-/*
- * RtfHandler
- *
- * An interface called by RtfParser with tags and groups etc... parsed from
- * an RTF file.
- */
-class RtfHandler
-{
-public:
-
- // Called at the beginning of the document
- virtual void startDocument(RtfParser* reader) = 0;
-
- // Called at the end of the document
- virtual void endDocument() = 0;
-
- // Called when an RTF control word is hit. Flags below.
- // If control word has no param then param is -1
- virtual void controlWord(const string& cw, int flags, int param) = 0;
-
- // Called when an RTF group opened
- virtual void groupStart() = 0;
-
- // Called when an RTF group is closed
- virtual void groupEnd() = 0;
-
- // A block of character data encountered
- virtual void charData(wstring data) = 0;
-
- // Flags for controlWord
- enum
- {
- kAsterisk = 0x00000001,
- kHasParam = 0x00000002,
- kIsEncoded = 0x00000004
- };
-};
-
-#endif // __RTFPARSER_H__