The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/ntfs/upcase.c

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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 }

Cache object: f19a19e937bc3609f7d2992d819824f3


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