transformer.h

/***************************************************************************************************************************************************/
/*  DocToText - A multifaceted, data extraction software development toolkit that converts all sorts of files to plain text and html.              */
/*  Written in C++, this data extraction tool has a parser able to convert PST & OST files along with a brand new API for better file processing.  */
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/*  It comes equipped with a high grade, scriptable and trainable OCR that has LSTM neural networks based character recognition.                   */
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/*  This document parser is able to extract metadata along with annotations and supports a list of formats that include:                           */
/*  DOC, XLS, XLSB, PPT, RTF, ODF (ODT, ODS, ODP), OOXML (DOCX, XLSX, PPTX), iWork (PAGES, NUMBERS, KEYNOTE), ODFXML (FODP, FODS, FODT),           */
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/*  Copyright (c) SILVERCODERS Ltd                                                                                                                 */
/*  http://silvercoders.com                                                                                                                        */
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/*  http://silvercoders.com/en/products/doctotext                                                                                                  */
/*  https://www.docwire.io/                                                                                                                        */
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/*  It is supplied in the hope that it will be useful.                                                                                             */
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#ifndef TRANSFORMER_H
#define TRANSFORMER_H
 
#include <algorithm>
#include <memory>
 
#include "parser.h"
#include "parser_builder.h"
#include "parser_manager.h"
#include "parser_parameters.h"
#include "defines.h"
 
namespace doctotext
{
class Importer;
 
class DllExport Transformer
{
public:
  Transformer() = default;
  virtual ~Transformer() = default;
 
  virtual Transformer* clone() const = 0;
 
  virtual void transform(doctotext::Info &info) const = 0;
};
 
class DllExport TransformerFunc: public Transformer
{
public:
  TransformerFunc(doctotext::NewNodeCallback transformer_function);
 
  TransformerFunc(const TransformerFunc &other);
 
  virtual ~TransformerFunc();
 
  void transform(doctotext::Info &info) const override;
 
  TransformerFunc* clone() const override;
 
private:
  class Implementation;
  std::unique_ptr<Implementation> impl;
};
 
} // namespace doctotext
 
#endif //TRANSFORMER_H