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// JSON pretty formatting example
// This example can handle UTF-8/UTF-16LE/UTF-16BE/UTF-32LE/UTF-32BE.
// The input firstly convert to UTF8, and then write to the original encoding with pretty formatting.
#include "rapidjson/reader.h"
#include "rapidjson/prettywriter.h"
#include "rapidjson/filereadstream.h"
#include "rapidjson/filewritestream.h"
#include "rapidjson/encodedstream.h" // NEW
#include "rapidjson/error/en.h"
#ifdef _WIN32
#include <fcntl.h>
#include <io.h>
using namespace rapidjson;
int main(int, char*[]) {
#ifdef _WIN32
// Prevent Windows converting between CR+LF and LF
_setmode(_fileno(stdin), _O_BINARY); // NEW
_setmode(_fileno(stdout), _O_BINARY); // NEW
// Prepare reader and input stream.
//Reader reader;
GenericReader<AutoUTF<unsigned>, UTF8<> > reader; // CHANGED
char readBuffer[65536];
FileReadStream is(stdin, readBuffer, sizeof(readBuffer));
AutoUTFInputStream<unsigned, FileReadStream> eis(is); // NEW
// Prepare writer and output stream.
char writeBuffer[65536];
FileWriteStream os(stdout, writeBuffer, sizeof(writeBuffer));
#if 1
// Use the same Encoding of the input. Also use BOM according to input.
typedef AutoUTFOutputStream<unsigned, FileWriteStream> OutputStream; // NEW
OutputStream eos(os, eis.GetType(), eis.HasBOM()); // NEW
PrettyWriter<OutputStream, UTF8<>, AutoUTF<unsigned> > writer(eos); // CHANGED
// You may also use static bound encoding type, such as output to UTF-16LE with BOM
typedef EncodedOutputStream<UTF16LE<>,FileWriteStream> OutputStream; // NEW
OutputStream eos(os, true); // NEW
PrettyWriter<OutputStream, UTF8<>, UTF16LE<> > writer(eos); // CHANGED
// JSON reader parse from the input stream and let writer generate the output.
//if (!reader.Parse<kParseValidateEncodingFlag>(is, writer)) {
if (!reader.Parse<kParseValidateEncodingFlag>(eis, writer)) { // CHANGED
fprintf(stderr, "\nError(%u): %s\n", static_cast<unsigned>(reader.GetErrorOffset()), GetParseError_En(reader.GetParseErrorCode()));
return 1;
return 0;