writer.h

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#ifndef JSON_WRITER_H_INCLUDED
#define JSON_WRITER_H_INCLUDED

#include "value.h"
#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();
    ~FastWriter() override {}

    void enableYAMLCompatibility();

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

  private:
    void writeValue(const Value &value);

    std::string document_;
    bool yamlCompatiblityEnabled_;
  };

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

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

  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_;
  };

  std::string JSON_API valueToString(Int value);
  std::string JSON_API valueToString(UInt 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