writer.h

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// Copyright 2007-2010 Baptiste Lepilleur
// Distributed under MIT license, or public domain if desired and
// recognized in your jurisdiction.
// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE

#ifndef JSON_WRITER_H_INCLUDED
# define JSON_WRITER_H_INCLUDED

#if !defined(JSON_IS_AMALGAMATION)
# include "value.h"
#endif // if !defined(JSON_IS_AMALGAMATION)
# include <vector>
# include <string>
# include <iostream>

namespace Json {

   class Value;

   class JSON_API Writer
   {
   public:
      virtual ~Writer();

      virtual std::string write( const Value &root ) = 0;
   };

   class JSON_API FastWriter : public Writer
   {
   public:
      FastWriter();
      virtual ~FastWriter(){}

      void enableYAMLCompatibility();

   public: // overridden from Writer
      virtual std::string write( const Value &root );

   private:
      void writeValue( const Value &value );

      std::string document_;
      bool yamlCompatiblityEnabled_;
   };

   class JSON_API StyledWriter: public Writer
   {
   public:
      StyledWriter();
      virtual ~StyledWriter(){}

   public: // overridden from Writer
      virtual std::string write( const Value &root );

   private:
      void writeValue( const Value &value );
      void writeArrayValue( const Value &value );
      bool isMultineArray( const Value &value );
      void pushValue( const std::string &value );
      void writeIndent();
      void writeWithIndent( const std::string &value );
      void indent();
      void unindent();
      void writeCommentBeforeValue( const Value &root );
      void writeCommentAfterValueOnSameLine( const Value &root );
      bool hasCommentForValue( const Value &value );
      static std::string normalizeEOL( const std::string &text );

      typedef std::vector<std::string> ChildValues;

      ChildValues childValues_;
      std::string document_;
      std::string indentString_;
      int rightMargin_;
      int indentSize_;
      bool addChildValues_;
   };

   class JSON_API StyledStreamWriter
   {
   public:
      StyledStreamWriter( std::string indentation="\t" );
      ~StyledStreamWriter(){}

   public:
      void write( std::ostream &out, const Value &root );

   private:
      void writeValue( const Value &value );
      void writeArrayValue( const Value &value );
      bool isMultineArray( const Value &value );
      void pushValue( const std::string &value );
      void writeIndent();
      void writeWithIndent( const std::string &value );
      void indent();
      void unindent();
      void writeCommentBeforeValue( const Value &root );
      void writeCommentAfterValueOnSameLine( const Value &root );
      bool hasCommentForValue( const Value &value );
      static std::string normalizeEOL( const std::string &text );

      typedef std::vector<std::string> ChildValues;

      ChildValues childValues_;
      std::ostream* document_;
      std::string indentString_;
      int rightMargin_;
      std::string indentation_;
      bool addChildValues_;
   };

# if defined(JSON_HAS_INT64)
   std::string JSON_API valueToString( Int value );
   std::string JSON_API valueToString( UInt value );
# endif // if defined(JSON_HAS_INT64)
   std::string JSON_API valueToString( LargestInt value );
   std::string JSON_API valueToString( LargestUInt value );
   std::string JSON_API valueToString( double value );
   std::string JSON_API valueToString( bool value );
   std::string JSON_API valueToQuotedString( const char *value );

   std::ostream& operator<<( std::ostream&, const Value &root );

} // namespace Json



#endif // JSON_WRITER_H_INCLUDED