Created
October 24, 2019 02:48
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C++ UTF8 to Shift-jis (with ICU)
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// | |
// @reference https://faithandbrave.hateblo.jp/entry/20100318/1268896477 | |
// @memo | |
// on CentOS: | |
// yum install libicu libicu-devel | |
// g++ -std=c++14 -o cvt convert.cpp `pkg-config --libs --cflags icu-uc icu-io` | |
// | |
#include <iostream> | |
#include <vector> | |
#include <string> | |
#include <unicode/unistr.h> | |
std::string | |
utf8ToSjis(const std::string& value) | |
{ | |
icu::UnicodeString src(value.c_str(), "utf8"); | |
int length = src.extract(0, src.length(), NULL, "shift_jis"); | |
std::vector<char> result(length + 1); | |
src.extract(0, src.length(), &result[0], "shift_jis"); | |
return std::string(result.begin(), result.end() - 1); | |
} | |
std::string | |
sjisToUtf8(const std::string& value) | |
{ | |
icu::UnicodeString src(value.c_str(), "shift_jis"); | |
int length = src.extract(0, src.length(), NULL, "utf8"); | |
std::vector<char> result(length + 1); | |
src.extract(0, src.length(), &result[0], "utf8"); | |
return std::string(result.begin(), result.end() - 1); | |
} | |
int main(int argc, char *argv[]) | |
{ | |
std::string input_string = "テストです!"; | |
std::cout << "input_string = " << input_string << std::endl; | |
std::string converted_string = utf8ToSjis(input_string); | |
std::cout << "converted_string = " << converted_string << std::endl; | |
return 0; | |
} |
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