text_reader.hpp

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#pragma once
#include "../array.hpp"
#include "../core_export.hpp"
#include "../object.hpp"
#include "../span.hpp"
#include "../string.hpp"
#include <cstdio>
#include <istream>
#include <string>
 
namespace xtd {
  namespace io {
    class null_text_reader;
    class synchronized_text_reader;
    
    class core_export_ text_reader : public xtd::object {
    public:
      
      static null_text_reader& null() noexcept;
      
      
      virtual void close();
      
      virtual int32 peek() const;
      
      virtual int32 read();
     
      virtual size_t read(xtd::span<char>& buffer);
 
      virtual size_t read(xtd::array<char>& buffer, size_t index, size_t count);
 
      virtual size_t read_block(xtd::span<char>& buffer);
 
      virtual size_t read_block(xtd::array<char>& buffer, size_t index, size_t count);
      
      virtual xtd::string read_line();
      
      virtual xtd::string read_to_end();
      
      
      static synchronized_text_reader synchronised(text_reader& reader) noexcept;
      
    protected:
      
      text_reader() = default;
    };
    
    class core_export_ null_text_reader : public xtd::io::text_reader {
    public:
      
      int32 read() override;
    };
    
    class core_export_ synchronized_text_reader : public xtd::io::text_reader {
    public:
      
      int32 read() override;
      
    private:
      friend class text_reader;
      explicit synchronized_text_reader(xtd::io::text_reader& reader);
      synchronized_text_reader() = delete;
      xtd::io::text_reader& reader_;
    };
  }
}