common/util2.c

   1 #include "config.h"
   2
   3 #include <sys/types.h>
   4 #include <sys/queue.h>
   5 #include <sys/time.h>
   6
   7 #include <bitstring.h>
   8 #include <errno.h>
   9 #include <limits.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14
  15 #include "multibyte.h"
  16
  17 int
  18 ucs2utf8(const CHAR_T *src, size_t len, char *dst)
  19 {
  20     int i, j;
  21
  22     for (i = 0, j = 0; i < len; ++i) {
  23         if (src[i] < 0x80)
  24             dst[j++] = src[i];
  25         else if (src[i] < 0x800) {
  26             dst[j++] = (src[i] >> 6) | 0xc0;
  27             dst[j++] = (src[i] & 0x3f) | 0x80;
  28         } else {
  29             dst[j++] = (src[i] >> 12) | 0xe0;
  30             dst[j++] = ((src[i] >> 6) & 0x3f) | 0x80;
  31             dst[j++] = (src[i] & 0x3f) | 0x80;
  32         }
  33     }
  34
  35     return j;
  36 }