simdjson-simdjson/include/simdjson/minify.h

#ifndef SIMDJSON_MINIFY_H
#define SIMDJSON_MINIFY_H

#include "simdjson/common_defs.h"
#include "simdjson/padded_string.h"
#include <string>
#include <ostream>
#include <sstream>

namespace simdjson {

/**
 * Minifies a JSON element or document, printing the smallest possible valid JSON.
 *
 *   dom::parser parser;
 *   element doc = parser.parse("   [ 1 , 2 , 3 ] "_padded);
 *   cout << minify(doc) << endl; // prints [1,2,3]
 *
 */
template<typename T>
class minify {
public:
  /**
   * Create a new minifier.
   *
   * @param _value The document or element to minify.
   */
  inline minify(const T &_value) noexcept : value{_value} {}

  /**
   * Minify JSON to a string.
   */
  inline operator std::string() const noexcept { std::stringstream s; s << *this; return s.str(); }

  /**
   * Minify JSON to an output stream.
   */
  inline std::ostream& print(std::ostream& out);
private:
  const T &value;
};

/**
 * Minify JSON to an output stream.
 *
 * @param out The output stream.
 * @param formatter The minifier.
 * @throw if there is an error with the underlying output stream. simdjson itself will not throw.
 */
template<typename T>
inline std::ostream& operator<<(std::ostream& out, minify<T> formatter) { return formatter.print(out); }

} // namespace simdjson

#endif // SIMDJSON_MINIFY_H