kc3-lang/libiconv/lib/utf16le.h

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• Hash : a615528b
  Author :
  Date : 2000-11-23T19:54:07
  

  Move src/ to lib/, and install the iconv program.
  

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• lib/utf16le.h

• /*
   * UTF-16LE
   */
  
  /* Specification: RFC 2781 */
  
  static int
  utf16le_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
  {
    int count = 0;
    if (n >= 2) {
      ucs4_t wc = s[0] + (s[1] << 8);
      if (wc >= 0xd800 && wc < 0xdc00) {
        if (n >= 4) {
          ucs4_t wc2 = s[2] + (s[3] << 8);
          if (!(wc2 >= 0xdc00 && wc2 < 0xe000))
            return RET_ILSEQ;
          *pwc = 0x10000 + ((wc - 0xd800) << 10) + (wc2 - 0xdc00);
          return count+4;
        }
      } else if (wc >= 0xdc00 && wc < 0xe000) {
        return RET_ILSEQ;
      } else {
        *pwc = wc;
        return count+2;
      }
    }
    return RET_TOOFEW(count);
  }
  
  static int
  utf16le_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
  {
    if (!(wc >= 0xd800 && wc < 0xe000)) {
      if (wc < 0x10000) {
        if (n >= 2) {
          r[0] = (unsigned char) wc;
          r[1] = (unsigned char) (wc >> 8);
          return 2;
        } else
          return RET_TOOSMALL;
      }
      else if (wc < 0x110000) {
        if (n >= 4) {
          ucs4_t wc1 = 0xd800 + ((wc - 0x10000) >> 10);
          ucs4_t wc2 = 0xdc00 + ((wc - 0x10000) & 0x3ff);
          r[0] = (unsigned char) wc1;
          r[1] = (unsigned char) (wc1 >> 8);
          r[2] = (unsigned char) wc2;
          r[3] = (unsigned char) (wc2 >> 8);
          return 4;
        } else
          return RET_TOOSMALL;
      }
    }
    return RET_ILSEQ;
  }
  

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