regexp.hh

// regexp.hh: this file is part of the Vaucanson project.
//
// Vaucanson, a generic library for finite state machines.
//
// Copyright (C) 2007, 2008 The Vaucanson Group.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// The complete GNU General Public Licence Notice can be found as the
// `COPYING' file in the root directory.
//
// The Vaucanson Group consists of people listed in the `AUTHORS' file.
//

#ifndef VCSN_XML_REGEXP_HH
# define VCSN_XML_REGEXP_HH

# include <map>
# include <string>

# include <xercesc/sax2/SAX2XMLReader.hpp>
# include <xercesc/sax2/XMLReaderFactory.hpp>
# include <xercesc/sax2/DefaultHandler.hpp>
# include <xercesc/sax2/Attributes.hpp>

# include <xercesc/sax/SAXException.hpp>
# include <xercesc/util/XMLString.hpp>

# include <vaucanson/xml/xmleq.hh>
# include <vaucanson/xml/strings.hh>
# include <vaucanson/xml/handlers_base.hh>
# include <vaucanson/xml/builders.hh>

namespace vcsn
{
  namespace xml
  {
    template <typename T>
    class RegexpHandler : public Handler
    {
      public:
        RegexpHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);
        RegexpHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param,
                       XMLCh* end);
        virtual ~RegexpHandler ();

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);

        T& series();
        // Create the Handler accordingly to localname
        // Return 0 if localname is incorrect.
        RegexpHandler<T>*
        create (const XMLCh* const localname);

      protected:
        RegexpHandler<T>*
        create_weight (const xercesc::Attributes& attrs);

        XMLCh*  end_;

        T       param_;

        RegexpHandler<T>*       lefth_;
    };
    template <typename T>
    class WeightHandler : public RegexpHandler<T>
    {
      public:
        WeightHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
    };
    template <typename T>
    class ExtMulHandler : public RegexpHandler<T>
    {
      public:
        ExtMulHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param,
                       bool left);
        virtual ~ExtMulHandler();

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
      private:
        bool                    left_;
        RegexpHandler<T>*       righth_;
    };
    template <typename T>
    class StarHandler : public RegexpHandler<T>
    {
      public:
        StarHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
      private:
        int                     in_;
    };
    template <typename T>
    class ProductHandler : public RegexpHandler<T>
    {
      public:
        ProductHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);
        virtual ~ProductHandler ();

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
      private:
        int                     in_;
        RegexpHandler<T>*       righth_;
    };
    template <typename T>
    class SumHandler : public RegexpHandler<T>
    {
      public:
        SumHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);
        virtual ~SumHandler ();

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
      private:
        int                     in_;
        RegexpHandler<T>*       righth_;
    };
    template <typename T>
    class MonElmtHandler : public RegexpHandler<T>
    {
      public:
        MonElmtHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param);

        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
    };
    template <typename T>
    class AtomHandler : public RegexpHandler<T>
    {
      public:
        AtomHandler (xercesc::SAX2XMLReader* parser,
                       Handler& root,
                       T param,
                       XMLCh* end);
        void
        start (const XMLCh* const uri,
                      const XMLCh* const localname,
                      const XMLCh* const qname,
                      const xercesc::Attributes& attrs);
        void
        end (const XMLCh* const uri,
                    const XMLCh* const localname,
                    const XMLCh* const qname);
    };
  } // !xml
} // !vcsn

# if ! defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB
#  include <vaucanson/xml/regexp.hxx>
# endif // !VCSN_USE_INTERFACE_ONLY || VCSN_USE_LIB

#endif // !VCSN_XML_REGEXP_HH

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