/*

* Copyright 2016 Nu-book Inc.

*/

// SPDX-License-Identifier: Apache-2.0

#include "TextEncoder.h"

#include "CharacterSet.h"

#include "ECI.h"

#include "Utf.h"

#include "ZXAlgorithms.h"

#include "libzueci/zueci.h"

#include <stdexcept>

namespace ZXing {

void TextEncoder::GetBytes(const std::string& str, CharacterSet charset, std::string& bytes)

{

int eci = ToInt(ToECI(charset));

const int str_len = narrow_cast<int>(str.length());

int eci_len;

if (eci == -1)

eci = 899; // Binary

bytes.clear();

int error_number = zueci_dest_len_eci(eci, reinterpret_cast<const unsigned char *>(str.data()), str_len, &eci_len);

if (error_number >= ZUECI_ERROR) // Shouldn't happen

throw std::logic_error("Internal error `zueci_dest_len_eci()`");

bytes.resize(eci_len); // Sufficient but approximate length

error_number = zueci_utf8_to_eci(eci, reinterpret_cast<const unsigned char *>(str.data()), str_len,

reinterpret_cast<unsigned char *>(bytes.data()), &eci_len);

if (error_number >= ZUECI_ERROR) {

bytes.clear();

throw std::invalid_argument("Unexpected charcode");

}

bytes.resize(eci_len); // Actual length

}

void TextEncoder::GetBytes(const std::wstring& str, CharacterSet charset, std::string& bytes)

{

GetBytes(ToUtf8(str), charset, bytes);

}

} // ZXing