includes/zhtable/printutf8.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 /*
   5  Unicode                   UTF8
   6 0x00000000 - 0x0000007F: 0xxxxxxx
   7 0x00000080 - 0x000007FF: 110xxx xx 10xx xxxx
   8 0x00000800 - 0x0000FFFF: 1110xxxx  10xxxx xx 10xx xxxx
   9 0x00010000 - 0x001FFFFF: 11110x xx 10xx xxxx 10xxxx xx 10xx xxxx
  10 0x00200000 - 0x03FFFFFF: 111110xx  10xxxx xx 10xx xxxx 10xxxx xx 10xx xxxx
  11 0x04000000 - 0x7FFFFFFF: 1111110x  10xx xxxx 10xxxx xx 10xx xxxx 10xxxx xx 10xx xxxx
  12
  13 0000 0      1001 9
  14 0001 1      1010 A
  15 0010 2      1011 B
  16 0011 3      1100 C
  17 0100 4      1101 D
  18 0101 5      1110 E
  19 0110 6      1111 F
  20 0111 7
  21 1000 8
  22 */
  23 void printUTF8(long long u) {
  24   long long m;
  25   if(u<0x80) {
  26     printf("%c", (unsigned char)u);
  27   }
  28   else if(u<0x800) {
  29     m = ((u&0x7c0)>>6) | 0xc0;
  30     printf("%c", (unsigned char)m);
  31     m = (u&0x3f) | 0x80;
  32     printf("%c", (unsigned char)m);
  33   }
  34   else if(u<0x10000) {
  35     m = ((u&0xf000)>>12) | 0xe0;
  36     printf("%c",(unsigned char)m);
  37     m = ((u&0xfc0)>>6) | 0x80;
  38     printf("%c",(unsigned char)m);
  39     m = (u & 0x3f) | 0x80;
  40     printf("%c",(unsigned char)m);
  41   }
  42   else if(u<0x200000) {
  43     m = ((u&0x1c0000)>>18) | 0xf0;
  44     printf("%c", (unsigned char)m);
  45     m = ((u& 0x3f000)>>12) | 0x80;
  46     printf("%c", (unsigned char)m);
  47     m = ((u& 0xfc0)>>6) | 0x80;
  48     printf("%c", (unsigned char)m);
  49     m = (u&0x3f) | 0x80;
  50     printf("%c", (unsigned char)m);
  51   }
  52   else if(u<0x4000000){
  53     m = ((u&0x3000000)>>24) | 0xf8;
  54     printf("%c", (unsigned char)m);
  55     m = ((u&0xfc0000)>>18) | 0x80;
  56     printf("%c", (unsigned char)m);
  57     m = ((u&0x3f000)>>12) | 0x80;
  58     printf("%c", (unsigned char)m);
  59     m = ((u&0xfc00)>>6) | 0x80;
  60     printf("%c", (unsigned char)m);
  61     m = (u&0x3f) | 0x80;
  62     printf("%c", (unsigned char)m);
  63   }
  64   else {
  65     m = ((u&0x40000000)>>30) | 0xfc;
  66     printf("%c", (unsigned char)m);
  67     m = ((u&0x3f000000)>>24) | 0x80;
  68     printf("%c", (unsigned char)m);
  69     m = ((u&0xfc0000)>>18) | 0x80;
  70     printf("%c", (unsigned char)m);
  71     m = ((u&0x3f000)>>12) | 0x80;
  72     printf("%c", (unsigned char)m);
  73     m = ((u&0xfc0)>>6) | 0x80;
  74     printf("%c", (unsigned char)m);
  75     m = (u&0x3f)| 0x80;
  76     printf("%c", (unsigned char)m);
  77   }
  78 }
  79
  80 int main() {
  81   int i,j;
  82   long long n1, n2;
  83   unsigned char b1[15], b2[15];
  84   unsigned char buf[1024];
  85   i=0;
  86   while(fgets(buf, 1024, stdin)) {
  87     //    printf("read %s\n", buf);
  88     for(i=0;i<strlen(buf); i++)
  89       if(buf[i]=='U') {
  90         if(buf[i+1] == '+') {
  91           n1 = strtoll(buf+i+2,0,16);
  92           printf("U+%05x", n1);
  93           printUTF8(n1);printf("|");
  94         }
  95       }
  96     printf("\n");
  97   }
  98 }
  99