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Parser.hpp

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/*==========================================================================
 * Copyright (c) 2001 Carnegie Mellon University.  All Rights Reserved.
 *
 * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
 * is subject to the terms of the software license set forth in the LICENSE
 * file included with this software, and also available at
 * http://www.lemurproject.org/license.html
 *
 *==========================================================================
*/

#ifndef _PARSER_HPP
#define _PARSER_HPP

#include "TextHandler.hpp"
#include "WordSet.hpp"


class Parser : public TextHandler {
public:
  static const string category;
  static const string identifier;

  Parser();
  virtual ~Parser();

  virtual void parse(const string &filename);
  
  virtual void parseFile(const string &filename) = 0;

  virtual void parseBuffer(char * buf, int len) = 0;

  virtual void setAcroList(const WordSet * acronyms);

  virtual void setAcroList(string filename);

  virtual long fileTell() const = 0;

  virtual long getDocBytePos() const { return docpos; }

  virtual const string getParseFile() const { return parsefile; }

protected: 
  bool isAcronym(const char * word);
  void clearAcros();

  long docpos; 

  string parsefile;
private:
  WordSet * myacros;
  const WordSet* borrowedacros;
};

#endif

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