STM32将UTF8转换为GBK

snailmoving · 发表于 2017-6-27 11:11:38

本帖最后由 snailmoving 于 2017-6-27 11:51 编辑

如何使用STM32单片机将UTF8转换为GBK编码？我项目的字库是GBK编码的，接收到的数据是UTF8编码格式的。

求UTF8转GBK的算法，或者UTF8转unicode编码的方法。

unicode转韩文，有没有谁知道怎么办？

snailmoving · 发表于 2017-6-27 11:11:39

u8 UTF8toUnicode(u8 *ch, u16 *_unicode)
{
u8 *p = NULL ,n = 0;
u16 e = 0;
p = ch;
if(1)//p == NULL
{
         if(*p >= 0xfc)
         {
                  /*6:<11111100>*/
                  e  = (p[0] & 0x01) << 30;
                  e |= (p[1] & 0x3f) << 24;
                  e |= (p[2] & 0x3f) << 18;
                  e |= (p[3] & 0x3f) << 12;
                  e |= (p[4] & 0x3f) << 6;
                  e |= (p[5] & 0x3f);
                  n = 6;
         }
         else if(*p >= 0xf8)
         {
                  /*5:<11111000>*/
                  e = (p[0] & 0x03) << 24;
                  e |= (p[1] & 0x3f) << 18;
                  e |= (p[2] & 0x3f) << 12;
                  e |= (p[3] & 0x3f) << 6;
                  e |= (p[4] & 0x3f);
                  n = 5;
         }
         else if(*p >= 0xf0)
         {
                  /*4:<11110000>*/
                  e = (p[0] & 0x07) << 18;
                  e |= (p[1] & 0x3f) << 12;
                  e |= (p[2] & 0x3f) << 6;
                  e |= (p[3] & 0x3f);
                  n = 4;
         }
         else if(*p >= 0xe0)
         {
                  /*3:<11100000>*/
                  e = (p[0] & 0x0f) << 12;
                  e |= (p[1] & 0x3f) << 6;
                  e |= (p[2] & 0x3f);
                  n = 3;
         }
         else if(*p >= 0xc0)
         {
                  /*2:<11000000>*/
                  e = (p[0] & 0x1f) << 6;
                  e |= (p[1] & 0x3f);
                  n = 2;
         }
         else
         {
                  e = p[0];
                  n = 1;
         }
         *_unicode = e;
}
return n;
}