projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 84514eae | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 1da177e4 LT |
2 | /* |
| 3 | * upcase.c - Generate the full NTFS Unicode upcase table in little endian. | |
| 4 | * Part of the Linux-NTFS project. | |
| 5 | * | |
| 6 | * Copyright (c) 2001 Richard Russon <[email protected]> | |
| 1cf3109f | 7 | * Copyright (c) 2001-2006 Anton Altaparmakov |
| 1da177e4 LT |
8 | */ |
| 9 | ||
| 10 | #include "malloc.h" | |
| 11 | #include "ntfs.h" | |
| 12 | ||
| 13 | ntfschar *generate_default_upcase(void) | |
| 14 | { | |
| 15 | static const int uc_run_table[][3] = { /* Start, End, Add */ | |
| 16 | {0x0061, 0x007B, -32}, {0x0451, 0x045D, -80}, {0x1F70, 0x1F72, 74}, | |
| 17 | {0x00E0, 0x00F7, -32}, {0x045E, 0x0460, -80}, {0x1F72, 0x1F76, 86}, | |
| 18 | {0x00F8, 0x00FF, -32}, {0x0561, 0x0587, -48}, {0x1F76, 0x1F78, 100}, | |
| 19 | {0x0256, 0x0258, -205}, {0x1F00, 0x1F08, 8}, {0x1F78, 0x1F7A, 128}, | |
| 20 | {0x028A, 0x028C, -217}, {0x1F10, 0x1F16, 8}, {0x1F7A, 0x1F7C, 112}, | |
| 21 | {0x03AC, 0x03AD, -38}, {0x1F20, 0x1F28, 8}, {0x1F7C, 0x1F7E, 126}, | |
| 22 | {0x03AD, 0x03B0, -37}, {0x1F30, 0x1F38, 8}, {0x1FB0, 0x1FB2, 8}, | |
| 23 | {0x03B1, 0x03C2, -32}, {0x1F40, 0x1F46, 8}, {0x1FD0, 0x1FD2, 8}, | |
| 24 | {0x03C2, 0x03C3, -31}, {0x1F51, 0x1F52, 8}, {0x1FE0, 0x1FE2, 8}, | |
| 25 | {0x03C3, 0x03CC, -32}, {0x1F53, 0x1F54, 8}, {0x1FE5, 0x1FE6, 7}, | |
| 26 | {0x03CC, 0x03CD, -64}, {0x1F55, 0x1F56, 8}, {0x2170, 0x2180, -16}, | |
| 27 | {0x03CD, 0x03CF, -63}, {0x1F57, 0x1F58, 8}, {0x24D0, 0x24EA, -26}, | |
| 28 | {0x0430, 0x0450, -32}, {0x1F60, 0x1F68, 8}, {0xFF41, 0xFF5B, -32}, | |
| 29 | {0} | |
| 30 | }; | |
| 31 | ||
| 32 | static const int uc_dup_table[][2] = { /* Start, End */ | |
| 33 | {0x0100, 0x012F}, {0x01A0, 0x01A6}, {0x03E2, 0x03EF}, {0x04CB, 0x04CC}, | |
| 34 | {0x0132, 0x0137}, {0x01B3, 0x01B7}, {0x0460, 0x0481}, {0x04D0, 0x04EB}, | |
| 35 | {0x0139, 0x0149}, {0x01CD, 0x01DD}, {0x0490, 0x04BF}, {0x04EE, 0x04F5}, | |
| 36 | {0x014A, 0x0178}, {0x01DE, 0x01EF}, {0x04BF, 0x04BF}, {0x04F8, 0x04F9}, | |
| 37 | {0x0179, 0x017E}, {0x01F4, 0x01F5}, {0x04C1, 0x04C4}, {0x1E00, 0x1E95}, | |
| 38 | {0x018B, 0x018B}, {0x01FA, 0x0218}, {0x04C7, 0x04C8}, {0x1EA0, 0x1EF9}, | |
| 39 | {0} | |
| 40 | }; | |
| 41 | ||
| 42 | static const int uc_word_table[][2] = { /* Offset, Value */ | |
| 43 | {0x00FF, 0x0178}, {0x01AD, 0x01AC}, {0x01F3, 0x01F1}, {0x0269, 0x0196}, | |
| 44 | {0x0183, 0x0182}, {0x01B0, 0x01AF}, {0x0253, 0x0181}, {0x026F, 0x019C}, | |
| 45 | {0x0185, 0x0184}, {0x01B9, 0x01B8}, {0x0254, 0x0186}, {0x0272, 0x019D}, | |
| 46 | {0x0188, 0x0187}, {0x01BD, 0x01BC}, {0x0259, 0x018F}, {0x0275, 0x019F}, | |
| 47 | {0x018C, 0x018B}, {0x01C6, 0x01C4}, {0x025B, 0x0190}, {0x0283, 0x01A9}, | |
| 48 | {0x0192, 0x0191}, {0x01C9, 0x01C7}, {0x0260, 0x0193}, {0x0288, 0x01AE}, | |
| 49 | {0x0199, 0x0198}, {0x01CC, 0x01CA}, {0x0263, 0x0194}, {0x0292, 0x01B7}, | |
| 50 | {0x01A8, 0x01A7}, {0x01DD, 0x018E}, {0x0268, 0x0197}, | |
| 51 | {0} | |
| 52 | }; | |
| 53 | ||
| 54 | int i, r; | |
| 55 | ntfschar *uc; | |
| 56 | ||
| 57 | uc = ntfs_malloc_nofs(default_upcase_len * sizeof(ntfschar)); | |
| 58 | if (!uc) | |
| 59 | return uc; | |
| 60 | memset(uc, 0, default_upcase_len * sizeof(ntfschar)); | |
| 1cf3109f | 61 | /* Generate the little endian Unicode upcase table used by ntfs. */ |
| 1da177e4 LT |
62 | for (i = 0; i < default_upcase_len; i++) |
| 63 | uc[i] = cpu_to_le16(i); | |
| 64 | for (r = 0; uc_run_table[r][0]; r++) | |
| 65 | for (i = uc_run_table[r][0]; i < uc_run_table[r][1]; i++) | |
| 80bfc25f | 66 | le16_add_cpu(&uc[i], uc_run_table[r][2]); |
| 1da177e4 LT |
67 | for (r = 0; uc_dup_table[r][0]; r++) |
| 68 | for (i = uc_dup_table[r][0]; i < uc_dup_table[r][1]; i += 2) | |
| 80bfc25f | 69 | le16_add_cpu(&uc[i + 1], -1); |
| 1da177e4 LT |
70 | for (r = 0; uc_word_table[r][0]; r++) |
| 71 | uc[uc_word_table[r][0]] = cpu_to_le16(uc_word_table[r][1]); | |
| 72 | return uc; | |
| 73 | } |