1 /*
2 * Copyright (C) 1999-2001 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 Library General Public
7 * License as published by the Free Software Foundation; either version 2
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 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public
16 * License along with the GNU LIBICONV Library; see the file COPYING.LIB.
17 * If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
18 * Fifth Floor, Boston, MA 02110-1301, USA.
19 */
20
21 /*
22 * ISO-8859-6
23 */
24
25 static const unsigned short iso8859_6_2uni[96] = {
26 /* 0xa0 */
27 0x00a0, 0xfffd, 0xfffd, 0xfffd, 0x00a4, 0xfffd, 0xfffd, 0xfffd,
28 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x060c, 0x00ad, 0xfffd, 0xfffd,
29 /* 0xb0 */
30 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
31 0xfffd, 0xfffd, 0xfffd, 0x061b, 0xfffd, 0xfffd, 0xfffd, 0x061f,
32 /* 0xc0 */
33 0xfffd, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627,
34 0x0628, 0x0629, 0x062a, 0x062b, 0x062c, 0x062d, 0x062e, 0x062f,
35 /* 0xd0 */
36 0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x0637,
37 0x0638, 0x0639, 0x063a, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
38 /* 0xe0 */
39 0x0640, 0x0641, 0x0642, 0x0643, 0x0644, 0x0645, 0x0646, 0x0647,
40 0x0648, 0x0649, 0x064a, 0x064b, 0x064c, 0x064d, 0x064e, 0x064f,
41 /* 0xf0 */
42 0x0650, 0x0651, 0x0652, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
43 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0xfffd,
44 };
45
46 static int
iso8859_6_mbtowc(conv_t conv,ucs4_t * pwc,const unsigned char * s,int n)47 iso8859_6_mbtowc (conv_t conv, ucs4_t *pwc, const unsigned char *s, int n)
48 {
49 unsigned char c = *s;
50 if (c < 0xa0) {
51 *pwc = (ucs4_t) c;
52 return 1;
53 }
54 else {
55 unsigned short wc = iso8859_6_2uni[c-0xa0];
56 if (wc != 0xfffd) {
57 *pwc = (ucs4_t) wc;
58 return 1;
59 }
60 }
61 return RET_ILSEQ;
62 }
63
64 static const unsigned char iso8859_6_page00[16] = {
65 0xa0, 0x00, 0x00, 0x00, 0xa4, 0x00, 0x00, 0x00, /* 0xa0-0xa7 */
66 0x00, 0x00, 0x00, 0x00, 0x00, 0xad, 0x00, 0x00, /* 0xa8-0xaf */
67 };
68 static const unsigned char iso8859_6_page06[80] = {
69 0x00, 0x00, 0x00, 0x00, 0xac, 0x00, 0x00, 0x00, /* 0x08-0x0f */
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
71 0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, 0xbf, /* 0x18-0x1f */
72 0x00, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x20-0x27 */
73 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x28-0x2f */
74 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0x30-0x37 */
75 0xd8, 0xd9, 0xda, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x38-0x3f */
76 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x40-0x47 */
77 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x48-0x4f */
78 0xf0, 0xf1, 0xf2, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x50-0x57 */
79 };
80
81 static int
iso8859_6_wctomb(conv_t conv,unsigned char * r,ucs4_t wc,int n)82 iso8859_6_wctomb (conv_t conv, unsigned char *r, ucs4_t wc, int n)
83 {
84 unsigned char c = 0;
85 if (wc < 0x00a0) {
86 *r = wc;
87 return 1;
88 }
89 else if (wc >= 0x00a0 && wc < 0x00b0)
90 c = iso8859_6_page00[wc-0x00a0];
91 else if (wc >= 0x0608 && wc < 0x0658)
92 c = iso8859_6_page06[wc-0x0608];
93 if (c != 0) {
94 *r = c;
95 return 1;
96 }
97 return RET_ILUNI;
98 }
99