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findtext.hpp

См. документацию.

/*
 * Copyright (C) Sergey P. Derevyago, 2003-2004.
 *
 * Permission to copy, use, modify, sell and distribute this software is granted
 * provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied warranty, and
 * with no claim as to its suitability for any purpose.
 *
 */

#ifndef __FINDTEXT_HPP__
 #define __FINDTEXT_HPP__

#include "pubsub.hpp"
#include "cexception.hpp"

// некоторые реализации определяют макрос FindText, который приходится явным
// образом отменять для успешной компиляции
#undef FindText

class FindText;

struct MsgBase {
       FindText& ft;

       MsgBase(FindText& ft_) : ft(ft_) {}
};

struct FoundMsg : MsgBase {
       const std::string fileName;
       const int lineNum;
       const std::string lineText;

       FoundMsg(FindText& ft, const std::string& file, int num,
         const std::string& txt) : MsgBase(ft), fileName(file), lineNum(num),
         lineText(txt) {}
};

struct InfoMsg : MsgBase {
       enum Type { opened, closed };

       const Type type;
       const std::string fileName;

       InfoMsg(FindText& ft, Type t, const std::string& fn) : MsgBase(ft),
         type(t), fileName(fn) {}
};

struct ErrorMsg : MsgBase {
       const std::string errMsg;

       ErrorMsg(FindText& ft, const std::string& err) : MsgBase(ft), errMsg(err)
         {}
};

class FindText {
 public:
      virtual void search(const std::string& dir, bool recur,
        const std::string& mask, const std::string& text)=0;

      virtual void stopSearch()=0;

      virtual Publisher<FoundMsg>& foundPub()=0;

      virtual Publisher<InfoMsg>& infoPub()=0;

      virtual Publisher<ErrorMsg>& errorPub()=0;

      virtual ~FindText() {}

 private:
      FindText& operator=(const FindText&);
};

namespace Factory {

 sh_ptr<FindText> newFindText();

}

#endif

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