1 /* Generic conversion to and from ISO 6937-2.
2    Copyright (C) 1998-2022 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    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 C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #include <dlfcn.h>
20 #include <stdint.h>
21 
22 /* Data taken from the WG15 tables.  */
23 static const uint32_t to_ucs4[256] =
24 {
25   /* 0x00 */ 0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007,
26   /* 0x08 */ 0x0008, 0x0009, 0x000a, 0x000b, 0x000c, 0x000d, 0x000e, 0x000f,
27   /* 0x10 */ 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017,
28   /* 0x18 */ 0x0018, 0x0019, 0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f,
29   /* 0x20 */ 0x0020, 0x0021, 0x0022, 0x0023, 0x00a4, 0x0025, 0x0026, 0x0027,
30   /* 0x28 */ 0x0028, 0x0029, 0x002a, 0x002b, 0x002c, 0x002d, 0x002e, 0x002f,
31   /* 0x30 */ 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,
32   /* 0x38 */ 0x0038, 0x0039, 0x003a, 0x003b, 0x003c, 0x003d, 0x003e, 0x003f,
33   /* 0x40 */ 0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,
34   /* 0x48 */ 0x0048, 0x0049, 0x004a, 0x004b, 0x004c, 0x004d, 0x004e, 0x004f,
35   /* 0x50 */ 0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,
36   /* 0x58 */ 0x0058, 0x0059, 0x005a, 0x005b, 0x005c, 0x005d, 0x005e, 0x005f,
37   /* 0x60 */ 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
38   /* 0x68 */ 0x0068, 0x0069, 0x006a, 0x006b, 0x006c, 0x006d, 0x006e, 0x006f,
39   /* 0x70 */ 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
40   /* 0x78 */ 0x0078, 0x0079, 0x007a, 0x007b, 0x007c, 0x007d, 0x007e, 0x007f,
41   /* 0x80 */ 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087,
42   /* 0x88 */ 0x0088, 0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f,
43   /* 0x90 */ 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
44   /* 0x98 */ 0x0098, 0x0099, 0x009a, 0x009b, 0x009c, 0x009d, 0x009e, 0x009f,
45   /* 0xa0 */ 0x0000, 0x00a1, 0x00a2, 0x00a3, 0x0024, 0x00a5, 0x0023, 0x00a7,
46   /* 0xa8 */ 0x00a4, 0x2018, 0x201c, 0x00ab, 0x2190, 0x2191, 0x2192, 0x2193,
47   /* 0xb0 */ 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00d7, 0x00b5, 0x00b6, 0x00b7,
48   /* 0xb8 */ 0x00f7, 0x2019, 0x201d, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
49   /* 0xc0 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
50   /* 0xc8 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
51   /* 0xd0 */ 0x2014, 0x00b9, 0x00ae, 0x00a9, 0x2122, 0x266a, 0x0000, 0x0000,
52   /* 0xd8 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x215b, 0x215c, 0x215d, 0x215e,
53   /* 0xe0 */ 0x2126, 0x00c6, 0x00d0, 0x00aa, 0x0126, 0x0000, 0x0132, 0x013f,
54   /* 0xe8 */ 0x0141, 0x00d8, 0x0152, 0x00ba, 0x00de, 0x0166, 0x014a, 0x0149,
55   /* 0xf0 */ 0x0138, 0x00e6, 0x0111, 0x00f0, 0x0127, 0x0131, 0x0133, 0x0140,
56   /* 0xf8 */ 0x0142, 0x00f8, 0x0153, 0x00df, 0x00fe, 0x0167, 0x014b, 0x0000
57 };
58 
59 /* The outer array range runs from 0xc1 to 0xcf, the inner range from 0x20
60    to 0x7f.  */
61 static const uint32_t to_ucs4_comb[15][96] =
62 {
63   /* 0xc1 */
64   {
65     /* 0x20 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
66     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
67     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
68     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
69     /* 0x40 */ 0x0000, 0x00c0, 0x0000, 0x0000, 0x0000, 0x00c8, 0x0000, 0x0000,
70     /* 0x48 */ 0x0000, 0x00cc, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d2,
71     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d9, 0x0000, 0x0000,
72     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
73     /* 0x60 */ 0x0000, 0x00e0, 0x0000, 0x0000, 0x0000, 0x00e8, 0x0000, 0x0000,
74     /* 0x68 */ 0x0000, 0x00ec, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f2,
75     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f9, 0x0000, 0x0000,
76     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
77   },
78   /* 0xc2 */
79   {
80     /* 0x20 */ 0x00b4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
81     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
82     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
83     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
84     /* 0x40 */ 0x0000, 0x00c1, 0x0000, 0x0106, 0x0000, 0x00c9, 0x0000, 0x0000,
85     /* 0x48 */ 0x0000, 0x00cd, 0x0000, 0x0000, 0x0139, 0x0000, 0x0143, 0x00d3,
86     /* 0x50 */ 0x0000, 0x0000, 0x0154, 0x015a, 0x0000, 0x00da, 0x0000, 0x0000,
87     /* 0x58 */ 0x0000, 0x00dd, 0x0179, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
88     /* 0x60 */ 0x0000, 0x00e1, 0x0000, 0x0107, 0x0000, 0x00e9, 0x0000, 0x0000,
89     /* 0x68 */ 0x0000, 0x00ed, 0x0000, 0x0000, 0x013a, 0x0000, 0x0144, 0x00f3,
90     /* 0x70 */ 0x0000, 0x0000, 0x0155, 0x015b, 0x0000, 0x00fa, 0x0000, 0x0000,
91     /* 0x78 */ 0x0000, 0x00fd, 0x017a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
92   },
93   /* 0xc3 */
94   {
95     /* 0x20 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
96     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
97     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
98     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
99     /* 0x40 */ 0x0000, 0x00c2, 0x0000, 0x0108, 0x0000, 0x00ca, 0x0000, 0x011c,
100     /* 0x48 */ 0x0124, 0x00ce, 0x0134, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d4,
101     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x015c, 0x0000, 0x00db, 0x0000, 0x0174,
102     /* 0x58 */ 0x0000, 0x0176, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
103     /* 0x60 */ 0x0000, 0x00e2, 0x0000, 0x0109, 0x0000, 0x00ea, 0x0000, 0x011d,
104     /* 0x68 */ 0x0125, 0x00ee, 0x0135, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f4,
105     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x015d, 0x0000, 0x00fb, 0x0000, 0x0175,
106     /* 0x78 */ 0x0000, 0x0177, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
107   },
108   /* 0xc4 */
109   {
110     /* 0x20 */ 0x007e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
111     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
112     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
113     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
114     /* 0x40 */ 0x0000, 0x00c3, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
115     /* 0x48 */ 0x0000, 0x0128, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d1, 0x00d5,
116     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0168, 0x0000, 0x0000,
117     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
118     /* 0x60 */ 0x0000, 0x00e3, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
119     /* 0x68 */ 0x0000, 0x0129, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f1, 0x00f5,
120     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0169, 0x0000, 0x0000,
121     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
122   },
123   /* 0xc5 */
124   {
125     /* 0x20 */ 0x00af, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
126     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
127     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
128     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
129     /* 0x40 */ 0x0000, 0x0100, 0x0000, 0x0000, 0x0000, 0x0112, 0x0000, 0x0000,
130     /* 0x48 */ 0x0000, 0x012a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x014c,
131     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016a, 0x0000, 0x0000,
132     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
133     /* 0x60 */ 0x0000, 0x0101, 0x0000, 0x0000, 0x0000, 0x0113, 0x0000, 0x0000,
134     /* 0x68 */ 0x0000, 0x012b, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x014d,
135     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016b, 0x0000, 0x0000,
136     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
137   },
138   /* 0xc6 */
139   {
140     /* 0x20 */ 0x02d8, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
141     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
142     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
143     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
144     /* 0x40 */ 0x0000, 0x0102, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x011e,
145     /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
146     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016c, 0x0000, 0x0000,
147     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
148     /* 0x60 */ 0x0000, 0x0103, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x011f,
149     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
150     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016d, 0x0000, 0x0000,
151     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
152   },
153   /* 0xc7 */
154   {
155     /* 0x20 */ 0x02d9, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
156     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
157     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
158     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
159     /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x010a, 0x0000, 0x0116, 0x0000, 0x0120,
160     /* 0x48 */ 0x0000, 0x0130, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
161     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
162     /* 0x58 */ 0x0000, 0x0000, 0x017b, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
163     /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x010b, 0x0000, 0x0117, 0x0000, 0x0121,
164     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
165     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
166     /* 0x78 */ 0x0000, 0x0000, 0x017c, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
167   },
168   /* 0xc8 */
169   {
170     /* 0x20 */ 0x00a8, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
171     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
172     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
173     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
174     /* 0x40 */ 0x0000, 0x00c4, 0x0000, 0x0000, 0x0000, 0x00cb, 0x0000, 0x0000,
175     /* 0x48 */ 0x0000, 0x00cf, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00d6,
176     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00dc, 0x0000, 0x0000,
177     /* 0x58 */ 0x0000, 0x0178, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
178     /* 0x60 */ 0x0000, 0x00e4, 0x0000, 0x0000, 0x0000, 0x00eb, 0x0000, 0x0000,
179     /* 0x68 */ 0x0000, 0x00ef, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00f6,
180     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x00fc, 0x0000, 0x0000,
181     /* 0x78 */ 0x0000, 0x00ff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
182   },
183   /* 0xc9 */
184   {
185     0x0000,
186   },
187   /* 0xca */
188   {
189     /* 0x20 */ 0x02da, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
190     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
191     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
192     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
193     /* 0x40 */ 0x0000, 0x00c5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
194     /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
195     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016e, 0x0000, 0x0000,
196     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
197     /* 0x60 */ 0x0000, 0x00e5, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
198     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
199     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x016f, 0x0000, 0x0000,
200     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
201   },
202   /* 0xcb */
203   {
204     /* 0x20 */ 0x00b8, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
205     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
206     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
207     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
208     /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x00c7, 0x0000, 0x0000, 0x0000, 0x0122,
209     /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0136, 0x013b, 0x0000, 0x0145, 0x0000,
210     /* 0x50 */ 0x0000, 0x0000, 0x0156, 0x015e, 0x0162, 0x0000, 0x0000, 0x0000,
211     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
212     /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x00e7, 0x0000, 0x0000, 0x0000, 0x0123,
213     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0137, 0x013c, 0x0000, 0x0146, 0x0000,
214     /* 0x70 */ 0x0000, 0x0000, 0x0157, 0x015f, 0x0163, 0x0000, 0x0000, 0x0000,
215     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
216   },
217   /* 0xcc */
218   {
219     0x0000,
220   },
221   /* 0xcd */
222   {
223     /* 0x20 */ 0x02dd, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
224     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
225     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
226     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
227     /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
228     /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0150,
229     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0170, 0x0000, 0x0000,
230     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
231     /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
232     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0151,
233     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0171, 0x0000, 0x0000,
234     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
235   },
236   /* 0xce */
237   {
238     /* 0x20 */ 0x02db, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
239     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
240     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
241     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
242     /* 0x40 */ 0x0000, 0x0104, 0x0000, 0x0000, 0x0000, 0x0118, 0x0000, 0x0000,
243     /* 0x48 */ 0x0000, 0x012e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
244     /* 0x50 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0172, 0x0000, 0x0000,
245     /* 0x58 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
246     /* 0x60 */ 0x0000, 0x0105, 0x0000, 0x0000, 0x0000, 0x0119, 0x0000, 0x0000,
247     /* 0x68 */ 0x0000, 0x012f, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
248     /* 0x70 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0173, 0x0000, 0x0000,
249     /* 0x78 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
250   },
251   /* 0xcf */
252   {
253     /* 0x20 */ 0x02c7, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
254     /* 0x28 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
255     /* 0x30 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
256     /* 0x38 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
257     /* 0x40 */ 0x0000, 0x0000, 0x0000, 0x010c, 0x010e, 0x011a, 0x0000, 0x0000,
258     /* 0x48 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x013d, 0x0000, 0x0147, 0x0000,
259     /* 0x50 */ 0x0000, 0x0000, 0x0158, 0x0160, 0x0164, 0x0000, 0x0000, 0x0000,
260     /* 0x58 */ 0x0000, 0x0000, 0x017d, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
261     /* 0x60 */ 0x0000, 0x0000, 0x0000, 0x010d, 0x010f, 0x011b, 0x0000, 0x0000,
262     /* 0x68 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x013e, 0x0000, 0x0148, 0x0000,
263     /* 0x70 */ 0x0000, 0x0000, 0x0159, 0x0161, 0x0165, 0x0000, 0x0000, 0x0000,
264     /* 0x78 */ 0x0000, 0x0000, 0x017e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
265   }
266 };
267 
268 
269 static const char from_ucs4[][2] =
270 {
271   /* 0x0000 */ "\x00\x00", "\x01\x00", "\x02\x00", "\x03\x00", "\x04\x00",
272   /* 0x0005 */ "\x05\x00", "\x06\x00", "\x07\x00", "\x08\x00", "\x09\x00",
273   /* 0x000a */ "\x0a\x00", "\x0b\x00", "\x0c\x00", "\x0d\x00", "\x0e\x00",
274   /* 0x000f */ "\x0f\x00", "\x10\x00", "\x11\x00", "\x12\x00", "\x13\x00",
275   /* 0x0014 */ "\x14\x00", "\x15\x00", "\x16\x00", "\x17\x00", "\x18\x00",
276   /* 0x0019 */ "\x19\x00", "\x1a\x00", "\x1b\x00", "\x1c\x00", "\x1d\x00",
277   /* 0x001e */ "\x1e\x00", "\x1f\x00", "\x20\x00", "\x21\x00", "\x22\x00",
278   /* 0x0023 */ "\xa6\x00", "\xa4\x00", "\x25\x00", "\x26\x00", "\x27\x00",
279   /* 0x0028 */ "\x28\x00", "\x29\x00", "\x2a\x00", "\x2b\x00", "\x2c\x00",
280   /* 0x002d */ "\x2d\x00", "\x2e\x00", "\x2f\x00", "\x30\x00", "\x31\x00",
281   /* 0x0032 */ "\x32\x00", "\x33\x00", "\x34\x00", "\x35\x00", "\x36\x00",
282   /* 0x0037 */ "\x37\x00", "\x38\x00", "\x39\x00", "\x3a\x00", "\x3b\x00",
283   /* 0x003c */ "\x3c\x00", "\x3d\x00", "\x3e\x00", "\x3f\x00", "\x40\x00",
284   /* 0x0041 */ "\x41\x00", "\x42\x00", "\x43\x00", "\x44\x00", "\x45\x00",
285   /* 0x0046 */ "\x46\x00", "\x47\x00", "\x48\x00", "\x49\x00", "\x4a\x00",
286   /* 0x004b */ "\x4b\x00", "\x4c\x00", "\x4d\x00", "\x4e\x00", "\x4f\x00",
287   /* 0x0050 */ "\x50\x00", "\x51\x00", "\x52\x00", "\x53\x00", "\x54\x00",
288   /* 0x0055 */ "\x55\x00", "\x56\x00", "\x57\x00", "\x58\x00", "\x59\x00",
289   /* 0x005a */ "\x5a\x00", "\x5b\x00", "\x5c\x00", "\x5d\x00", "\x5e\x00",
290   /* 0x005f */ "\x5f\x00", "\x60\x00", "\x61\x00", "\x62\x00", "\x63\x00",
291   /* 0x0064 */ "\x64\x00", "\x65\x00", "\x66\x00", "\x67\x00", "\x68\x00",
292   /* 0x0069 */ "\x69\x00", "\x6a\x00", "\x6b\x00", "\x6c\x00", "\x6d\x00",
293   /* 0x006e */ "\x6e\x00", "\x6f\x00", "\x70\x00", "\x71\x00", "\x72\x00",
294   /* 0x0073 */ "\x73\x00", "\x74\x00", "\x75\x00", "\x76\x00", "\x77\x00",
295   /* 0x0078 */ "\x78\x00", "\x79\x00", "\x7a\x00", "\x7b\x00", "\x7c\x00",
296   /* 0x007d */ "\x7d\x00", "\x7e\x00", "\x7f\x00", "\x80\x00", "\x81\x00",
297   /* 0x0082 */ "\x82\x00", "\x83\x00", "\x84\x00", "\x85\x00", "\x86\x00",
298   /* 0x0087 */ "\x87\x00", "\x88\x00", "\x89\x00", "\x8a\x00", "\x8b\x00",
299   /* 0x008c */ "\x8c\x00", "\x8d\x00", "\x8e\x00", "\x8f\x00", "\x90\x00",
300   /* 0x0091 */ "\x91\x00", "\x92\x00", "\x93\x00", "\x94\x00", "\x95\x00",
301   /* 0x0096 */ "\x96\x00", "\x97\x00", "\x98\x00", "\x99\x00", "\x9a\x00",
302   /* 0x009b */ "\x9b\x00", "\x9c\x00", "\x9d\x00", "\x9e\x00", "\x9f\x00",
303   /* 0x00a0 */ "\x00\x00", "\xa1\x00", "\xa2\x00", "\xa3\x00", "\xa8\x00",
304   /* 0x00a5 */ "\xa5\x00", "\x00\x00", "\xa7\x00", "\xc8\x20", "\xd3\x00",
305   /* 0x00aa */ "\xe3\x00", "\xab\x00", "\x00\x00", "\x00\x00", "\xd2\x00",
306   /* 0x00af */ "\xc5\x20", "\xb0\x00", "\xb1\x00", "\xb2\x00", "\xb3\x00",
307   /* 0x00b4 */ "\xc2\x20", "\xb5\x00", "\xb6\x00", "\xb7\x00", "\xcb\x20",
308   /* 0x00b9 */ "\xd1\x00", "\xeb\x00", "\xbb\x00", "\xbc\x00", "\xbd\x00",
309   /* 0x00be */ "\xbe\x00", "\xbf\x00", "\xc1\x41", "\xc2\x41", "\xc3\x41",
310   /* 0x00c3 */ "\xc4\x41", "\xc8\x41", "\xca\x41", "\xe1\x00", "\xcb\x43",
311   /* 0x00c8 */ "\xc1\x45", "\xc2\x45", "\xc3\x45", "\xc8\x45", "\xc1\x49",
312   /* 0x00cd */ "\xc2\x49", "\xc3\x49", "\xc8\x49", "\xe2\x00", "\xc4\x4e",
313   /* 0x00d2 */ "\xc1\x4f", "\xc2\x4f", "\xc3\x4f", "\xc4\x4f", "\xc8\x4f",
314   /* 0x00d7 */ "\xb4\x00", "\xe9\x00", "\xc1\x55", "\xc2\x55", "\xc3\x55",
315   /* 0x00dc */ "\xc8\x55", "\xc2\x59", "\xec\x00", "\xfb\x00", "\xc1\x61",
316   /* 0x00e1 */ "\xc2\x61", "\xc3\x61", "\xc4\x61", "\xc8\x61", "\xca\x61",
317   /* 0x00e6 */ "\xf1\x00", "\xcb\x63", "\xc1\x65", "\xc2\x65", "\xc3\x65",
318   /* 0x00eb */ "\xc8\x65", "\xc1\x69", "\xc2\x69", "\xc3\x69", "\xc8\x69",
319   /* 0x00f0 */ "\xf3\x00", "\xc4\x6e", "\xc1\x6f", "\xc2\x6f", "\xc3\x6f",
320   /* 0x00f5 */ "\xc4\x6f", "\xc8\x6f", "\xb8\x00", "\xf9\x00", "\xc1\x75",
321   /* 0x00fa */ "\xc2\x75", "\xc3\x75", "\xc8\x75", "\xc2\x79", "\xfc\x00",
322   /* 0x00ff */ "\xc8\x79", "\xc5\x41", "\xc5\x61", "\xc6\x41", "\xc6\x61",
323   /* 0x0104 */ "\xce\x41", "\xce\x61", "\xc2\x43", "\xc2\x63", "\xc3\x43",
324   /* 0x0109 */ "\xc3\x63", "\xc7\x43", "\xc7\x63", "\xcf\x43", "\xcf\x63",
325   /* 0x010e */ "\xcf\x44", "\xcf\x64", "\x00\x00", "\xf2\x00", "\xc5\x45",
326   /* 0x0113 */ "\xc5\x65", "\x00\x00", "\x00\x00", "\xc7\x45", "\xc7\x65",
327   /* 0x0118 */ "\xce\x45", "\xce\x65", "\xcf\x45", "\xcf\x65", "\xc3\x47",
328   /* 0x011d */ "\xc3\x67", "\xc6\x47", "\xc6\x67", "\xc7\x47", "\xc7\x67",
329   /* 0x0122 */ "\xcb\x47", "\xcb\x67", "\xc3\x48", "\xc3\x68", "\xe4\x00",
330   /* 0x0127 */ "\xf4\x00", "\xc4\x49", "\xc4\x69", "\xc5\x49", "\xc5\x69",
331   /* 0x012c */ "\x00\x00", "\x00\x00", "\xce\x49", "\xce\x69", "\xc7\x49",
332   /* 0x0131 */ "\xf5\x00", "\xe6\x00", "\xf6\x00", "\xc3\x4a", "\xc3\x6a",
333   /* 0x0136 */ "\xcb\x4b", "\xcb\x6b", "\xf0\x00", "\xc2\x4c", "\xc2\x6c",
334   /* 0x013b */ "\xcb\x4c", "\xcb\x6c", "\xcf\x4c", "\xcf\x6c", "\xe7\x00",
335   /* 0x0140 */ "\xf7\x00", "\xe8\x00", "\xf8\x00", "\xc2\x4e", "\xc2\x6e",
336   /* 0x0145 */ "\xcb\x4e", "\xcb\x6e", "\xcf\x4e", "\xcf\x6e", "\xef\x00",
337   /* 0x014a */ "\xee\x00", "\xfe\x00", "\xc5\x4f", "\xc5\x6f", "\x00\x00",
338   /* 0x014f */ "\x00\x00", "\xcd\x4f", "\xcd\x6f", "\xea\x00", "\xfa\x00",
339   /* 0x0154 */ "\xc2\x52", "\xc2\x72", "\xcb\x52", "\xcb\x72", "\xcf\x52",
340   /* 0x0159 */ "\xcf\x72", "\xc2\x53", "\xc2\x73", "\xc3\x53", "\xc3\x73",
341   /* 0x015e */ "\xcb\x53", "\xcb\x73", "\xcf\x53", "\xcf\x73", "\xcb\x54",
342   /* 0x0163 */ "\xcb\x74", "\xcf\x54", "\xcf\x74", "\xed\x00", "\xfd\x00",
343   /* 0x0168 */ "\xc4\x55", "\xc4\x75", "\xc5\x55", "\xc5\x75", "\xc6\x55",
344   /* 0x016d */ "\xc6\x75", "\xca\x55", "\xca\x75", "\xcd\x55", "\xcd\x75",
345   /* 0x0172 */ "\xce\x55", "\xce\x75", "\xc3\x57", "\xc3\x77", "\xc3\x59",
346   /* 0x0177 */ "\xc3\x79", "\xc8\x59", "\xc2\x5a", "\xc2\x7a", "\xc7\x5a",
347   /* 0x017c */ "\xc7\x7a", "\xcf\x5a", "\xcf\x7a"
348 /*
349    This table does not cover the following positions:
350 
351      0x02c7    "\xcf\x20",
352      ...
353      0x02d8    "\xc6\x20", "\xc7\x20", "\xca\x20", "\xce\x20", "\x00\x00",
354      0x02dd    "\xcd\x20",
355      ...
356      0x2014    "\xd0\x00", "\x00\x00", "\x00\x00", "\x00\x00", "\xa9\x00",
357      0x2019    "\xb9\x00", "\x00\x00", "\x00\x00", "\xaa\x00", "\xba\x00",
358      0x201e    "\x00\x00", "\x00\x00", "\x00\x00", "\x00\x00", "\xd4\x00",
359      0x2123    "\x00\x00", "\x00\x00", "\x00\x00", "\xe0\x00",
360      ...
361      0x215b    "\xdc\x00", "\xdd\x00", "\xde\x00"
362      ...
363      0x2190    "\xac\x00", "\xad\x00", "\xae\x00", "\xaf\x00",
364      ...
365      0x266a    "\xd5\x00"
366 
367    These would blow up the table and are therefore handled specially in
368    the code.
369 */
370 };
371 
372 
373 /* Definitions used in the body of the `gconv' function.  */
374 #define CHARSET_NAME		"ISO_6937-2//"
375 #define FROM_LOOP		from_iso6937_2
376 #define TO_LOOP			to_iso6937_2
377 #define DEFINE_INIT		1
378 #define DEFINE_FINI		1
379 #define MIN_NEEDED_FROM		1
380 #define MAX_NEEDED_FROM		2
381 #define MIN_NEEDED_TO		4
382 #define ONE_DIRECTION		0
383 
384 
385 /* First define the conversion function from ISO 6937-2 to UCS4.  */
386 #define MIN_NEEDED_INPUT	MIN_NEEDED_FROM
387 #define MAX_NEEDED_INPUT	MAX_NEEDED_FROM
388 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_TO
389 #define LOOPFCT			FROM_LOOP
390 #define BODY \
391   {									      \
392     uint32_t ch = *inptr;						      \
393 									      \
394     if (__builtin_expect (ch >= 0xc1, 0) && ch <= 0xcf)			      \
395       {									      \
396 	/* Composed character.  First test whether the next byte	      \
397 	   is also available.  */					      \
398 	int ch2;							      \
399 									      \
400 	if (__glibc_unlikely (inptr + 1 >= inend))			      \
401 	  {								      \
402 	    /* The second character is not available.  Store the	      \
403 	       intermediate result.  */					      \
404 	    result = __GCONV_INCOMPLETE_INPUT;				      \
405 	    break;							      \
406 	  }								      \
407 									      \
408 	ch2 = inptr[1];							      \
409 									      \
410 	if (__builtin_expect (ch2 < 0x20, 0)				      \
411 	    || __builtin_expect (ch2 >= 0x80, 0))			      \
412 	  {								      \
413 	    /* This is illegal.  */					      \
414 	    STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
415 	  }								      \
416 									      \
417 	ch = to_ucs4_comb[ch - 0xc1][ch2 - 0x20];			      \
418 									      \
419 	if (__glibc_unlikely (ch == 0))					      \
420 	  {								      \
421 	    /* Illegal character.  */					      \
422 	    STANDARD_FROM_LOOP_ERR_HANDLER (2);				      \
423 	  }								      \
424 									      \
425 	inptr += 2;							      \
426       }									      \
427     else								      \
428       {									      \
429 	ch = to_ucs4[ch];						      \
430 									      \
431 	if (__builtin_expect (ch == 0, 0) && *inptr != '\0')		      \
432 	  {								      \
433 	    /* This is an illegal character.  */			      \
434 	    STANDARD_FROM_LOOP_ERR_HANDLER (1);				      \
435 	  }								      \
436 	++inptr;							      \
437       }									      \
438 									      \
439     put32 (outptr, ch);							      \
440     outptr += 4;							      \
441   }
442 #define LOOP_NEED_FLAGS
443 #define ONEBYTE_BODY \
444   {									      \
445     uint32_t ch = to_ucs4[c];						      \
446     if (ch == 0 && c != '\0')						      \
447       return WEOF;							      \
448     return ch;								      \
449   }
450 #include <iconv/loop.c>
451 
452 
453 /* Next, define the other direction.  */
454 #define MIN_NEEDED_INPUT	MIN_NEEDED_TO
455 #define MIN_NEEDED_OUTPUT	MIN_NEEDED_FROM
456 #define MAX_NEEDED_OUTPUT	MAX_NEEDED_FROM
457 #define LOOPFCT			TO_LOOP
458 #define BODY \
459   {									      \
460     char tmp[2];							      \
461     uint32_t ch = get32 (inptr);					      \
462     const char *cp;							      \
463 									      \
464     if (__builtin_expect (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0]),   \
465 			  0))						      \
466       {									      \
467 	switch (ch)							      \
468 	  {								      \
469 	  case 0x2c7:							      \
470 	    cp = "\xcf\x20";						      \
471 	    break;							      \
472 	  case 0x2d8 ... 0x2db:						      \
473 	  case 0x2dd:							      \
474 	    {								      \
475 	      static const char map[6] = "\xc6\xc7\xca\xce\x00\xcd";	      \
476 									      \
477 	      tmp[0] = map[ch - 0x2d8];					      \
478 	      tmp[1] = ' ';						      \
479 	      cp = tmp;							      \
480 	    }								      \
481 	    break;							      \
482 	  case 0x2014:							      \
483 	    cp = "\xd0";						      \
484 	    break;							      \
485 	  case 0x2018:							      \
486 	    cp = "\xa9";						      \
487 	    break;							      \
488 	  case 0x2019:							      \
489 	    cp = "\xb9";						      \
490 	    break;							      \
491 	  case 0x201c:							      \
492 	    cp = "\xaa";						      \
493 	    break;							      \
494 	  case 0x201d:							      \
495 	    cp = "\xba";						      \
496 	    break;							      \
497 	  case 0x2122:							      \
498 	    cp = "\xd4";						      \
499 	    break;							      \
500 	  case 0x2126:							      \
501 	    cp = "\xe0";						      \
502 	    break;							      \
503 	  case 0x215b ... 0x215e:					      \
504 	    tmp[0] = 0xdc + (ch - 0x215b);				      \
505 	    tmp[1] = '\0';						      \
506 	    cp = tmp;							      \
507 	    break;							      \
508 	  case 0x2190 ... 0x2193:					      \
509 	    tmp[0] = 0xac + (ch - 0x2190);				      \
510 	    tmp[1] = '\0';						      \
511 	    cp = tmp;							      \
512 	    break;							      \
513 	  case 0x266a:							      \
514 	    cp = "\xd5";						      \
515 	    break;							      \
516 	  default:							      \
517 	    UNICODE_TAG_HANDLER (ch, 4);				      \
518 	    /* Illegal characters.  */					      \
519 	    cp = NULL;							      \
520 	    break;							      \
521 	  }								      \
522 	if (cp == NULL)							      \
523 	  {								      \
524 	    STANDARD_TO_LOOP_ERR_HANDLER (4);				      \
525 	  }								      \
526       }									      \
527     else if (__builtin_expect (from_ucs4[ch][0] == '\0', 0) && ch != 0)	      \
528       {									      \
529 	/* Illegal characters.  */					      \
530 	STANDARD_TO_LOOP_ERR_HANDLER (4);				      \
531       }									      \
532     else								      \
533       cp = from_ucs4[ch];						      \
534 									      \
535     *outptr++ = cp[0];							      \
536     /* Now test for a possible second byte and write this if possible.  */    \
537     if (cp[1] != '\0')							      \
538       {									      \
539 	if (__glibc_unlikely (outptr >= outend))			      \
540 	  {								      \
541 	    /* The result does not fit into the buffer.  */		      \
542 	    --outptr;							      \
543 	    result = __GCONV_FULL_OUTPUT;				      \
544 	    break;							      \
545 	  }								      \
546 	*outptr++ = cp[1];						      \
547       }									      \
548 									      \
549     inptr += 4;								      \
550   }
551 #define LOOP_NEED_FLAGS
552 #include <iconv/loop.c>
553 
554 
555 /* Now define the toplevel functions.  */
556 #include <iconv/skeleton.c>
557