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1da177e4 LT |
1 | /* |
2 | * upcase.c - Generate the full NTFS Unicode upcase table in little endian. | |
3 | * Part of the Linux-NTFS project. | |
4 | * | |
5 | * Copyright (c) 2001 Richard Russon <ntfs@flatcap.org> | |
6 | * Copyright (c) 2001-2004 Anton Altaparmakov | |
7 | * | |
8 | * Modified for mkntfs inclusion 9 June 2001 by Anton Altaparmakov. | |
9 | * Modified for kernel inclusion 10 September 2001 by Anton Altparmakov. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the Free | |
13 | * Software Foundation; either version 2 of the License, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program (in the main directory of the Linux-NTFS source | |
23 | * in the file COPYING); if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | #include "malloc.h" | |
28 | #include "ntfs.h" | |
29 | ||
30 | ntfschar *generate_default_upcase(void) | |
31 | { | |
32 | static const int uc_run_table[][3] = { /* Start, End, Add */ | |
33 | {0x0061, 0x007B, -32}, {0x0451, 0x045D, -80}, {0x1F70, 0x1F72, 74}, | |
34 | {0x00E0, 0x00F7, -32}, {0x045E, 0x0460, -80}, {0x1F72, 0x1F76, 86}, | |
35 | {0x00F8, 0x00FF, -32}, {0x0561, 0x0587, -48}, {0x1F76, 0x1F78, 100}, | |
36 | {0x0256, 0x0258, -205}, {0x1F00, 0x1F08, 8}, {0x1F78, 0x1F7A, 128}, | |
37 | {0x028A, 0x028C, -217}, {0x1F10, 0x1F16, 8}, {0x1F7A, 0x1F7C, 112}, | |
38 | {0x03AC, 0x03AD, -38}, {0x1F20, 0x1F28, 8}, {0x1F7C, 0x1F7E, 126}, | |
39 | {0x03AD, 0x03B0, -37}, {0x1F30, 0x1F38, 8}, {0x1FB0, 0x1FB2, 8}, | |
40 | {0x03B1, 0x03C2, -32}, {0x1F40, 0x1F46, 8}, {0x1FD0, 0x1FD2, 8}, | |
41 | {0x03C2, 0x03C3, -31}, {0x1F51, 0x1F52, 8}, {0x1FE0, 0x1FE2, 8}, | |
42 | {0x03C3, 0x03CC, -32}, {0x1F53, 0x1F54, 8}, {0x1FE5, 0x1FE6, 7}, | |
43 | {0x03CC, 0x03CD, -64}, {0x1F55, 0x1F56, 8}, {0x2170, 0x2180, -16}, | |
44 | {0x03CD, 0x03CF, -63}, {0x1F57, 0x1F58, 8}, {0x24D0, 0x24EA, -26}, | |
45 | {0x0430, 0x0450, -32}, {0x1F60, 0x1F68, 8}, {0xFF41, 0xFF5B, -32}, | |
46 | {0} | |
47 | }; | |
48 | ||
49 | static const int uc_dup_table[][2] = { /* Start, End */ | |
50 | {0x0100, 0x012F}, {0x01A0, 0x01A6}, {0x03E2, 0x03EF}, {0x04CB, 0x04CC}, | |
51 | {0x0132, 0x0137}, {0x01B3, 0x01B7}, {0x0460, 0x0481}, {0x04D0, 0x04EB}, | |
52 | {0x0139, 0x0149}, {0x01CD, 0x01DD}, {0x0490, 0x04BF}, {0x04EE, 0x04F5}, | |
53 | {0x014A, 0x0178}, {0x01DE, 0x01EF}, {0x04BF, 0x04BF}, {0x04F8, 0x04F9}, | |
54 | {0x0179, 0x017E}, {0x01F4, 0x01F5}, {0x04C1, 0x04C4}, {0x1E00, 0x1E95}, | |
55 | {0x018B, 0x018B}, {0x01FA, 0x0218}, {0x04C7, 0x04C8}, {0x1EA0, 0x1EF9}, | |
56 | {0} | |
57 | }; | |
58 | ||
59 | static const int uc_word_table[][2] = { /* Offset, Value */ | |
60 | {0x00FF, 0x0178}, {0x01AD, 0x01AC}, {0x01F3, 0x01F1}, {0x0269, 0x0196}, | |
61 | {0x0183, 0x0182}, {0x01B0, 0x01AF}, {0x0253, 0x0181}, {0x026F, 0x019C}, | |
62 | {0x0185, 0x0184}, {0x01B9, 0x01B8}, {0x0254, 0x0186}, {0x0272, 0x019D}, | |
63 | {0x0188, 0x0187}, {0x01BD, 0x01BC}, {0x0259, 0x018F}, {0x0275, 0x019F}, | |
64 | {0x018C, 0x018B}, {0x01C6, 0x01C4}, {0x025B, 0x0190}, {0x0283, 0x01A9}, | |
65 | {0x0192, 0x0191}, {0x01C9, 0x01C7}, {0x0260, 0x0193}, {0x0288, 0x01AE}, | |
66 | {0x0199, 0x0198}, {0x01CC, 0x01CA}, {0x0263, 0x0194}, {0x0292, 0x01B7}, | |
67 | {0x01A8, 0x01A7}, {0x01DD, 0x018E}, {0x0268, 0x0197}, | |
68 | {0} | |
69 | }; | |
70 | ||
71 | int i, r; | |
72 | ntfschar *uc; | |
73 | ||
74 | uc = ntfs_malloc_nofs(default_upcase_len * sizeof(ntfschar)); | |
75 | if (!uc) | |
76 | return uc; | |
77 | memset(uc, 0, default_upcase_len * sizeof(ntfschar)); | |
78 | for (i = 0; i < default_upcase_len; i++) | |
79 | uc[i] = cpu_to_le16(i); | |
80 | for (r = 0; uc_run_table[r][0]; r++) | |
81 | for (i = uc_run_table[r][0]; i < uc_run_table[r][1]; i++) | |
82 | uc[i] = cpu_to_le16((le16_to_cpu(uc[i]) + | |
83 | uc_run_table[r][2])); | |
84 | for (r = 0; uc_dup_table[r][0]; r++) | |
85 | for (i = uc_dup_table[r][0]; i < uc_dup_table[r][1]; i += 2) | |
86 | uc[i + 1] = cpu_to_le16(le16_to_cpu(uc[i + 1]) - 1); | |
87 | for (r = 0; uc_word_table[r][0]; r++) | |
88 | uc[uc_word_table[r][0]] = cpu_to_le16(uc_word_table[r][1]); | |
89 | return uc; | |
90 | } |