Linux上通过cmake编译uchardet

1. 下载uchardet源码

GitHub - BYVoid/uchardet: An encoding detector library ported from Mozilla · GitHub

2. 编译

2.1 mkdir build

2.2 cmake ..

2.3 make

2.4 sudo make install

2.5 使用

#include <iostream>
#include <fstream>
#include <uchardet/uchardet.h>
 
int main() {
    std::ifstream file("example.txt", std::ios::binary);
    if (!file) {
        std::cerr << "无法打开文件" << std::endl;
        return 1;
    }
 
    uchardet_t ud = uchardet_new();
    char buffer[4096];
    while (file.read(buffer, sizeof(buffer))) {
        uchardet_handle_data(ud, buffer, file.gcount());
    }
    uchardet_handle_data(ud, buffer, file.gcount());
    uchardet_data_end(ud);
 
    const char* encoding = uchardet_get_charset(ud);
    std::cout << "检测到的编码: " << encoding << std::endl;
 
    uchardet_delete(ud);
    return 0;
}

g++ -o detect_encoding detect_encoding.cpp -luchardet

./detect_encoding