Modules/cjkcodecs/alg_iso8859_7.h

   1 /*
   2  * alg_iso8859_7.c: Encoder/Decoder macro for ISO8859-7
   3  *
   4  * Written by Hye-Shik Chang <perky@FreeBSD.org>
   5  * $CJKCodecs: alg_iso8859_7.h,v 1.2 2003/12/31 05:46:55 perky Exp $
   6  */
   7
   8 /*
   9  * 0x2888fbc9 and 0xbffffd77 are magic number that indicates availability
  10  * of mapping for each differences. (0 and 0x2d0)
  11  */
  12
  13 #define ISO8859_7_ENCODE(c, assi)                               \
  14     if ((c) <= 0xa0) (assi) = (c);                              \
  15     else if ((c) < 0xc0 && (0x288f3bc9L & (1L << ((c)-0xa0))))  \
  16         (assi) = (c);                                           \
  17     else if ((c) >= 0x0384 && (c) <= 0x03ce && ((c) >= 0x03a4 ||\
  18              (0xbffffd77L & (1L << ((c)-0x0384)))))             \
  19         (assi) = (c) - 0x02d0;                                  \
  20     else if ((c)>>1 == 0x2018>>1) (assi) = (c) - 0x1f77;        \
  21     else if ((c) == 0x2015) (assi) = 0xaf;
  22
  23 #define ISO8859_7_DECODE(c, assi)                               \
  24     if ((c) < 0xa0) (assi) = (c);                               \
  25     else if ((c) < 0xc0 && (0x288f3bc9L & (1L << ((c)-0xa0))))  \
  26         (assi) = (c);                                           \
  27     else if ((c) >= 0xb4 && (c) <= 0xfe && ((c) >= 0xd4 ||      \
  28              (0xbffffd77L & (1L << ((c)-0xb4)))))               \
  29         (assi) = 0x02d0 + (c);                                  \
  30     else if ((c) == 0xa1) (assi) = 0x2018;                      \
  31     else if ((c) == 0xa2) (assi) = 0x2019;                      \
  32     else if ((c) == 0xaf) (assi) = 0x2015;