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#include <iostream>
#include <nan.h>
#include "Config.hpp"
#include "Converter.hpp"
#include "DictConverter.hpp"
// For faster build
#include "Config.cpp"
#include "Conversion.cpp"
#include "ConversionChain.cpp"
#include "Converter.cpp"
#include "Dict.cpp"
#include "DictConverter.cpp"
#include "DictEntry.cpp"
#include "DictGroup.cpp"
#include "Lexicon.cpp"
#include "MarisaDict.cpp"
#include "MaxMatchSegmentation.cpp"
#include "Segmentation.cpp"
#include "SerializedValues.cpp"
#include "TextDict.cpp"
#include "UTF8Util.cpp"
using namespace opencc;
std::string ToUtf8String(const v8::Local<v8::Value>& val) {
Nan::Utf8String utf8(val);
return std::string(*utf8);
}
class OpenccBinding : public Nan::ObjectWrap {
struct ConvertRequest {
OpenccBinding* instance;
std::string input;
std::string output;
Nan::Callback* callback;
Optional<opencc::Exception> ex;
ConvertRequest()
: instance(nullptr), ex(Optional<opencc::Exception>::Null()) {}
};
Config config_;
const ConverterPtr converter_;
public:
explicit OpenccBinding(const std::string configFileName)
: config_(), converter_(config_.NewFromFile(configFileName)) {}
virtual ~OpenccBinding() {}
std::string Convert(const std::string& input) {
return converter_->Convert(input);
}
static NAN_METHOD(Version) {
info.GetReturnValue().Set(Nan::New<v8::String>(VERSION).ToLocalChecked());
}
static NAN_METHOD(New) {
OpenccBinding* instance;
try {
if (info.Length() >= 1 && info[0]->IsString()) {
const std::string configFile = ToUtf8String(info[0]);
instance = new OpenccBinding(configFile);
} else {
instance = new OpenccBinding("s2t.json");
}
} catch (opencc::Exception& e) {
Nan::ThrowError(e.what());
return;
}
instance->Wrap(info.This());
info.GetReturnValue().Set(info.This());
}
static NAN_METHOD(Convert) {
if (info.Length() < 2 || !info[0]->IsString() || !info[1]->IsFunction()) {
Nan::ThrowTypeError("Wrong arguments");
return;
}
ConvertRequest* conv_data = new ConvertRequest;
conv_data->instance = Nan::ObjectWrap::Unwrap<OpenccBinding>(info.This());
conv_data->input = ToUtf8String(info[0]);
conv_data->callback = new Nan::Callback(info[1].As<v8::Function>());
conv_data->ex = Optional<opencc::Exception>::Null();
uv_work_t* req = new uv_work_t;
req->data = conv_data;
uv_queue_work(uv_default_loop(), req, DoConvert,
(uv_after_work_cb)AfterConvert);
return;
}
static void DoConvert(uv_work_t* req) {
ConvertRequest* conv_data = static_cast<ConvertRequest*>(req->data);
OpenccBinding* instance = conv_data->instance;
try {
conv_data->output = instance->Convert(conv_data->input);
} catch (opencc::Exception& e) {
conv_data->ex = Optional<opencc::Exception>(e);
}
}
static void AfterConvert(uv_work_t* req) {
Nan::HandleScope scope;
ConvertRequest* conv_data = static_cast<ConvertRequest*>(req->data);
v8::Local<v8::Value> err = Nan::Undefined();
v8::Local<v8::String> converted =
Nan::New(conv_data->output.c_str()).ToLocalChecked();
if (!conv_data->ex.IsNull()) {
err = Nan::New(conv_data->ex.Get().what()).ToLocalChecked();
}
const unsigned argc = 2;
v8::Local<v8::Value> argv[argc] = {err, converted};
Nan::AsyncResource resource("opencc:convert-async-cb");
conv_data->callback->Call(argc, argv, &resource);
delete conv_data;
delete req;
}
static NAN_METHOD(ConvertSync) {
if (info.Length() < 1 || !info[0]->IsString()) {
Nan::ThrowTypeError("Wrong arguments");
return;
}
OpenccBinding* instance =
Nan::ObjectWrap::Unwrap<OpenccBinding>(info.This());
const std::string input = ToUtf8String(info[0]);
std::string output;
try {
output = instance->Convert(input);
} catch (opencc::Exception& e) {
Nan::ThrowError(e.what());
return;
}
v8::Local<v8::String> converted = Nan::New(output.c_str()).ToLocalChecked();
info.GetReturnValue().Set(converted);
}
static NAN_METHOD(GenerateDict) {
if (info.Length() < 4 || !info[0]->IsString() || !info[1]->IsString() ||
!info[2]->IsString() || !info[3]->IsString()) {
Nan::ThrowTypeError("Wrong arguments");
return;
}
const std::string inputFileName = ToUtf8String(info[0]);
const std::string outputFileName = ToUtf8String(info[1]);
const std::string formatFrom = ToUtf8String(info[2]);
const std::string formatTo = ToUtf8String(info[3]);
try {
opencc::ConvertDictionary(inputFileName, outputFileName, formatFrom,
formatTo);
} catch (opencc::Exception& e) {
Nan::ThrowError(e.what());
}
}
static NAN_MODULE_INIT(Init) {
// Prepare constructor template
v8::Local<v8::FunctionTemplate> tpl =
Nan::New<v8::FunctionTemplate>(OpenccBinding::New);
tpl->SetClassName(Nan::New("Opencc").ToLocalChecked());
tpl->InstanceTemplate()->SetInternalFieldCount(1);
// Methods
Nan::SetMethod(tpl, "version", Version);
Nan::SetMethod(tpl, "generateDict", GenerateDict);
// Prototype
Nan::SetPrototypeMethod(tpl, "convert", Convert);
Nan::SetPrototypeMethod(tpl, "convertSync", ConvertSync);
// Constructor
v8::Local<v8::Function> cons = Nan::GetFunction(tpl).ToLocalChecked();
Nan::Set(target, Nan::New("Opencc").ToLocalChecked(), cons);
}
};
NODE_MODULE(binding, OpenccBinding::Init);
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