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| 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) 2001-2006 Anton Altaparmakov |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | * Software Foundation; either version 2 of the License, or (at your option) |
| 11 | * any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program (in the main directory of the Linux-NTFS source |
| 20 | * in the file COPYING); if not, write to the Free Software Foundation, |
| 21 | * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include "malloc.h" |
| 25 | #include "ntfs.h" |
| 26 | |
| 27 | ntfschar *generate_default_upcase(void) |
| 28 | { |
| 29 | static const int uc_run_table[][3] = { /* Start, End, Add */ |
| 30 | {0x0061, 0x007B, -32}, {0x0451, 0x045D, -80}, {0x1F70, 0x1F72, 74}, |
| 31 | {0x00E0, 0x00F7, -32}, {0x045E, 0x0460, -80}, {0x1F72, 0x1F76, 86}, |
| 32 | {0x00F8, 0x00FF, -32}, {0x0561, 0x0587, -48}, {0x1F76, 0x1F78, 100}, |
| 33 | {0x0256, 0x0258, -205}, {0x1F00, 0x1F08, 8}, {0x1F78, 0x1F7A, 128}, |
| 34 | {0x028A, 0x028C, -217}, {0x1F10, 0x1F16, 8}, {0x1F7A, 0x1F7C, 112}, |
| 35 | {0x03AC, 0x03AD, -38}, {0x1F20, 0x1F28, 8}, {0x1F7C, 0x1F7E, 126}, |
| 36 | {0x03AD, 0x03B0, -37}, {0x1F30, 0x1F38, 8}, {0x1FB0, 0x1FB2, 8}, |
| 37 | {0x03B1, 0x03C2, -32}, {0x1F40, 0x1F46, 8}, {0x1FD0, 0x1FD2, 8}, |
| 38 | {0x03C2, 0x03C3, -31}, {0x1F51, 0x1F52, 8}, {0x1FE0, 0x1FE2, 8}, |
| 39 | {0x03C3, 0x03CC, -32}, {0x1F53, 0x1F54, 8}, {0x1FE5, 0x1FE6, 7}, |
| 40 | {0x03CC, 0x03CD, -64}, {0x1F55, 0x1F56, 8}, {0x2170, 0x2180, -16}, |
| 41 | {0x03CD, 0x03CF, -63}, {0x1F57, 0x1F58, 8}, {0x24D0, 0x24EA, -26}, |
| 42 | {0x0430, 0x0450, -32}, {0x1F60, 0x1F68, 8}, {0xFF41, 0xFF5B, -32}, |
| 43 | {0} |
| 44 | }; |
| 45 | |
| 46 | static const int uc_dup_table[][2] = { /* Start, End */ |
| 47 | {0x0100, 0x012F}, {0x01A0, 0x01A6}, {0x03E2, 0x03EF}, {0x04CB, 0x04CC}, |
| 48 | {0x0132, 0x0137}, {0x01B3, 0x01B7}, {0x0460, 0x0481}, {0x04D0, 0x04EB}, |
| 49 | {0x0139, 0x0149}, {0x01CD, 0x01DD}, {0x0490, 0x04BF}, {0x04EE, 0x04F5}, |
| 50 | {0x014A, 0x0178}, {0x01DE, 0x01EF}, {0x04BF, 0x04BF}, {0x04F8, 0x04F9}, |
| 51 | {0x0179, 0x017E}, {0x01F4, 0x01F5}, {0x04C1, 0x04C4}, {0x1E00, 0x1E95}, |
| 52 | {0x018B, 0x018B}, {0x01FA, 0x0218}, {0x04C7, 0x04C8}, {0x1EA0, 0x1EF9}, |
| 53 | {0} |
| 54 | }; |
| 55 | |
| 56 | static const int uc_word_table[][2] = { /* Offset, Value */ |
| 57 | {0x00FF, 0x0178}, {0x01AD, 0x01AC}, {0x01F3, 0x01F1}, {0x0269, 0x0196}, |
| 58 | {0x0183, 0x0182}, {0x01B0, 0x01AF}, {0x0253, 0x0181}, {0x026F, 0x019C}, |
| 59 | {0x0185, 0x0184}, {0x01B9, 0x01B8}, {0x0254, 0x0186}, {0x0272, 0x019D}, |
| 60 | {0x0188, 0x0187}, {0x01BD, 0x01BC}, {0x0259, 0x018F}, {0x0275, 0x019F}, |
| 61 | {0x018C, 0x018B}, {0x01C6, 0x01C4}, {0x025B, 0x0190}, {0x0283, 0x01A9}, |
| 62 | {0x0192, 0x0191}, {0x01C9, 0x01C7}, {0x0260, 0x0193}, {0x0288, 0x01AE}, |
| 63 | {0x0199, 0x0198}, {0x01CC, 0x01CA}, {0x0263, 0x0194}, {0x0292, 0x01B7}, |
| 64 | {0x01A8, 0x01A7}, {0x01DD, 0x018E}, {0x0268, 0x0197}, |
| 65 | {0} |
| 66 | }; |
| 67 | |
| 68 | int i, r; |
| 69 | ntfschar *uc; |
| 70 | |
| 71 | uc = ntfs_malloc_nofs(default_upcase_len * sizeof(ntfschar)); |
| 72 | if (!uc) |
| 73 | return uc; |
| 74 | memset(uc, 0, default_upcase_len * sizeof(ntfschar)); |
| 75 | /* Generate the little endian Unicode upcase table used by ntfs. */ |
| 76 | for (i = 0; i < default_upcase_len; i++) |
| 77 | uc[i] = cpu_to_le16(i); |
| 78 | for (r = 0; uc_run_table[r][0]; r++) |
| 79 | for (i = uc_run_table[r][0]; i < uc_run_table[r][1]; i++) |
| 80 | le16_add_cpu(&uc[i], uc_run_table[r][2]); |
| 81 | for (r = 0; uc_dup_table[r][0]; r++) |
| 82 | for (i = uc_dup_table[r][0]; i < uc_dup_table[r][1]; i += 2) |
| 83 | le16_add_cpu(&uc[i + 1], -1); |
| 84 | for (r = 0; uc_word_table[r][0]; r++) |
| 85 | uc[uc_word_table[r][0]] = cpu_to_le16(uc_word_table[r][1]); |
| 86 | return uc; |
| 87 | } |
| 88 |
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