lib/iso8859_7.h

   1 /*
   2  * Copyright (C) 1999-2004, 2016 Free Software Foundation, Inc.
   3  * This file is part of the GNU LIBICONV Library.
   4  *
   5  * The GNU LIBICONV Library is free software; you can redistribute it
   6  * and/or modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either version 2.1
   8  * of the License, or (at your option) any later version.
   9  *
  10  * The GNU LIBICONV Library is distributed in the hope that it will be
  11  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
  17  * If not, see <https://www.gnu.org/licenses/>.
  18  */
  19
  20 /*
  21  * ISO-8859-7
  22  */
  23
  24 static const unsigned short iso8859_7_2uni[96] = {
  25   /* 0xa0 */
  26   0x00a0, 0x2018, 0x2019, 0x00a3, 0x20ac, 0x20af, 0x00a6, 0x00a7,
  27   0x00a8, 0x00a9, 0x037a, 0x00ab, 0x00ac, 0x00ad, 0xfffd, 0x2015,
  28   /* 0xb0 */
  29   0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x0384, 0x0385, 0x0386, 0x00b7,
  30   0x0388, 0x0389, 0x038a, 0x00bb, 0x038c, 0x00bd, 0x038e, 0x038f,
  31   /* 0xc0 */
  32   0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
  33   0x0398, 0x0399, 0x039a, 0x039b, 0x039c, 0x039d, 0x039e, 0x039f,
  34   /* 0xd0 */
  35   0x03a0, 0x03a1, 0xfffd, 0x03a3, 0x03a4, 0x03a5, 0x03a6, 0x03a7,
  36   0x03a8, 0x03a9, 0x03aa, 0x03ab, 0x03ac, 0x03ad, 0x03ae, 0x03af,
  37   /* 0xe0 */
  38   0x03b0, 0x03b1, 0x03b2, 0x03b3, 0x03b4, 0x03b5, 0x03b6, 0x03b7,
  39   0x03b8, 0x03b9, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03be, 0x03bf,
  40   /* 0xf0 */
  41   0x03c0, 0x03c1, 0x03c2, 0x03c3, 0x03c4, 0x03c5, 0x03c6, 0x03c7,
  42   0x03c8, 0x03c9, 0x03ca, 0x03cb, 0x03cc, 0x03cd, 0x03ce, 0xfffd,
  43 };
  44
  45 static int
  46 iso8859_7_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, size_t n)
  47 {
  48   unsigned char c = *s;
  49   if (c < 0xa0) {
  50     *pwc = (ucs4_t) c;
  51     return 1;
  52   }
  53   else {
  54     unsigned short wc = iso8859_7_2uni[c-0xa0];
  55     if (wc != 0xfffd) {
  56       *pwc = (ucs4_t) wc;
  57       return 1;
  58     }
  59   }
  60   return RET_ILSEQ;
  61 }
  62
  63 static const unsigned char iso8859_7_page00[32] = {
  64   0xa0, 0x00, 0x00, 0xa3, 0x00, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
  65   0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
  66   0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0x00, 0x00, 0xb7, /* 0xb0-0xb7 */
  67   0x00, 0x00, 0x00, 0xbb, 0x00, 0xbd, 0x00, 0x00, /* 0xb8-0xbf */
  68 };
  69 static const unsigned char iso8859_7_page03[88] = {
  70   0x00, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x78-0x7f */
  71   0x00, 0x00, 0x00, 0x00, 0xb4, 0xb5, 0xb6, 0x00, /* 0x80-0x87 */
  72   0xb8, 0xb9, 0xba, 0x00, 0xbc, 0x00, 0xbe, 0xbf, /* 0x88-0x8f */
  73   0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x90-0x97 */
  74   0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x98-0x9f */
  75   0xd0, 0xd1, 0x00, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xa0-0xa7 */
  76   0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xa8-0xaf */
  77   0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xb0-0xb7 */
  78   0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xb8-0xbf */
  79   0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xc0-0xc7 */
  80   0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0x00, /* 0xc8-0xcf */
  81 };
  82 static const unsigned char iso8859_7_page20[16] = {
  83   0x00, 0x00, 0x00, 0x00, 0x00, 0xaf, 0x00, 0x00, /* 0x10-0x17 */
  84   0xa1, 0xa2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
  85 };
  86
  87 static int
  88 iso8859_7_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, size_t n)
  89 {
  90   unsigned char c = 0;
  91   if (wc < 0x00a0) {
  92     *r = wc;
  93     return 1;
  94   }
  95   else if (wc >= 0x00a0 && wc < 0x00c0)
  96     c = iso8859_7_page00[wc-0x00a0];
  97   else if (wc >= 0x0378 && wc < 0x03d0)
  98     c = iso8859_7_page03[wc-0x0378];
  99   else if (wc >= 0x2010 && wc < 0x2020)
 100     c = iso8859_7_page20[wc-0x2010];
 101   else if (wc == 0x20ac)
 102     c = 0xa4;
 103   else if (wc == 0x20af)
 104     c = 0xa5;
 105   if (c != 0) {
 106     *r = c;
 107     return 1;
 108   }
 109   return RET_ILUNI;
 110 }