mirror of
https://github.com/RetroDECK/ES-DE.git
synced 2024-11-24 07:05:39 +00:00
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
// JSON condenser example
|
|
|
|
// This example parses JSON from stdin with validation,
|
|
// and re-output the JSON content to stdout with all string capitalized, and without whitespace.
|
|
|
|
#include "rapidjson/reader.h"
|
|
#include "rapidjson/writer.h"
|
|
#include "rapidjson/filereadstream.h"
|
|
#include "rapidjson/filewritestream.h"
|
|
#include "rapidjson/error/en.h"
|
|
#include <vector>
|
|
#include <cctype>
|
|
|
|
using namespace rapidjson;
|
|
|
|
template<typename OutputHandler>
|
|
struct CapitalizeFilter {
|
|
CapitalizeFilter(OutputHandler& out) : out_(out), buffer_() {}
|
|
|
|
bool Null() { return out_.Null(); }
|
|
bool Bool(bool b) { return out_.Bool(b); }
|
|
bool Int(int i) { return out_.Int(i); }
|
|
bool Uint(unsigned u) { return out_.Uint(u); }
|
|
bool Int64(int64_t i) { return out_.Int64(i); }
|
|
bool Uint64(uint64_t u) { return out_.Uint64(u); }
|
|
bool Double(double d) { return out_.Double(d); }
|
|
bool RawNumber(const char* str, SizeType length, bool copy) { return out_.RawNumber(str, length, copy); }
|
|
bool String(const char* str, SizeType length, bool) {
|
|
buffer_.clear();
|
|
for (SizeType i = 0; i < length; i++)
|
|
buffer_.push_back(static_cast<char>(std::toupper(str[i])));
|
|
return out_.String(&buffer_.front(), length, true); // true = output handler need to copy the string
|
|
}
|
|
bool StartObject() { return out_.StartObject(); }
|
|
bool Key(const char* str, SizeType length, bool copy) { return String(str, length, copy); }
|
|
bool EndObject(SizeType memberCount) { return out_.EndObject(memberCount); }
|
|
bool StartArray() { return out_.StartArray(); }
|
|
bool EndArray(SizeType elementCount) { return out_.EndArray(elementCount); }
|
|
|
|
OutputHandler& out_;
|
|
std::vector<char> buffer_;
|
|
|
|
private:
|
|
CapitalizeFilter(const CapitalizeFilter&);
|
|
CapitalizeFilter& operator=(const CapitalizeFilter&);
|
|
};
|
|
|
|
int main(int, char*[]) {
|
|
// Prepare JSON reader and input stream.
|
|
Reader reader;
|
|
char readBuffer[65536];
|
|
FileReadStream is(stdin, readBuffer, sizeof(readBuffer));
|
|
|
|
// Prepare JSON writer and output stream.
|
|
char writeBuffer[65536];
|
|
FileWriteStream os(stdout, writeBuffer, sizeof(writeBuffer));
|
|
Writer<FileWriteStream> writer(os);
|
|
|
|
// JSON reader parse from the input stream and let writer generate the output.
|
|
CapitalizeFilter<Writer<FileWriteStream> > filter(writer);
|
|
if (!reader.Parse(is, filter)) {
|
|
fprintf(stderr, "\nError(%u): %s\n", static_cast<unsigned>(reader.GetErrorOffset()), GetParseError_En(reader.GetParseErrorCode()));
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|