Visual C++ >> Console

UTF8轉BIG5

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參考資訊：
1. utf8_big5
2. iconv_open

main.c

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <iconv.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>

int main(int argc, char** argv)
{
  int x;
  iconv_t cd;
  char in_buf[255]={0};
  char out_buf[255]={0};
  char *sin=in_buf;
  char *sout=out_buf;
  size_t in_len=0;
  size_t out_len=sizeof(out_buf);

  cd = iconv_open("big5", "utf-8");
  if(cd == -1){
    printf("failed to open iconv !\n");
    return -1;
  }

  int fd = open("test.txt", O_RDONLY);
  in_len = read(fd, in_buf, sizeof(in_buf));
  close(fd);
  
  printf("utf8: ");
  for(x=0; x<in_len; x++){
    printf("0x%x ", (unsigned char)in_buf[x]);
  }
  printf("\n");

  iconv(cd, &sin, &in_len, &sout, &out_len);
  iconv_close(cd);

  printf("big5: ");
  out_len = strlen(out_buf);
  for(x=0; x<out_len; x++){
    printf("0x%x ", (unsigned char)out_buf[x]);
  }
  printf("\n");
  return 0;
}

test.txt

司徒

執行結果

$ ./test 
  utf8: 0xe5 0x8f 0xb8 0xe5 0xbe 0x92 0xa 
  big5: 0xa5 0x71 0xae 0x7b 0xa

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