[444] | 1 | /* Copyright (c) 2002 Red Hat Incorporated. |
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| 2 | All rights reserved. |
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| 3 | |
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| 4 | Redistribution and use in source and binary forms, with or without |
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| 5 | modification, are permitted provided that the following conditions are met: |
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| 6 | |
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| 7 | Redistributions of source code must retain the above copyright |
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| 8 | notice, this list of conditions and the following disclaimer. |
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| 9 | |
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| 10 | Redistributions in binary form must reproduce the above copyright |
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| 11 | notice, this list of conditions and the following disclaimer in the |
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| 12 | documentation and/or other materials provided with the distribution. |
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| 13 | |
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| 14 | The name of Red Hat Incorporated may not be used to endorse |
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| 15 | or promote products derived from this software without specific |
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| 16 | prior written permission. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
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| 22 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 23 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 24 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 25 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 27 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | |
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| 30 | /* |
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| 31 | FUNCTION |
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| 32 | <<iswprint>>, <<iswprint_l>>---printable wide character test |
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| 33 | |
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| 34 | INDEX |
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| 35 | iswprint |
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| 36 | |
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| 37 | INDEX |
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| 38 | iswprint_l |
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| 39 | |
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| 40 | SYNOPSIS |
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| 41 | #include <wctype.h> |
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| 42 | int iswprint(wint_t <[c]>); |
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| 43 | |
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| 44 | #include <wctype.h> |
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| 45 | int iswprint_l(wint_t <[c]>, locale_t <[locale]>); |
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| 46 | |
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| 47 | DESCRIPTION |
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| 48 | <<iswprint>> is a function which classifies wide-character values that |
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| 49 | are printable. |
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| 50 | |
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| 51 | <<iswprint_l>> is like <<iswprint>> but performs the check based on the |
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| 52 | locale specified by the locale object locale. If <[locale]> is |
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| 53 | LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined. |
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| 54 | |
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| 55 | RETURNS |
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| 56 | <<iswprint>>, <<iswprint_l>> return non-zero if <[c]> is a printable wide character. |
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| 57 | |
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| 58 | PORTABILITY |
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| 59 | <<iswprint>> is C99. |
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| 60 | <<iswprint_l>> is POSIX-1.2008. |
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| 61 | |
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| 62 | No supporting OS subroutines are required. |
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| 63 | */ |
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| 64 | #include <_ansi.h> |
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| 65 | #include <newlib.h> |
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| 66 | #include <wctype.h> |
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| 67 | #include <string.h> |
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| 68 | #include <ctype.h> |
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| 69 | #include "local.h" |
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| 70 | |
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| 71 | #ifdef _MB_CAPABLE |
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| 72 | #include "utf8print.h" |
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| 73 | #endif /* _MB_CAPABLE */ |
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| 74 | |
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| 75 | int |
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| 76 | iswprint (wint_t c) |
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| 77 | { |
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| 78 | #ifdef _MB_CAPABLE |
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| 79 | unsigned const char *table; |
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| 80 | unsigned char *ptr; |
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| 81 | unsigned char ctmp; |
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| 82 | int size; |
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| 83 | wint_t x; |
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| 84 | |
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| 85 | c = _jp2uc (c); |
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| 86 | |
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| 87 | /* Based on and tested against Unicode 5.2 |
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| 88 | See utf8print.h for a description how to fetch the data. */ |
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| 89 | x = (c >> 8); |
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| 90 | /* for some large sections, all characters are printuation so handle them here */ |
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| 91 | if ((x >= 0x33 && x <= 0x4c) || |
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| 92 | (x >= 0x4e && x <= 0x9e) || |
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| 93 | (x >= 0xa0 && x <= 0xa3) || |
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| 94 | (x >= 0xac && x <= 0xd6) || |
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| 95 | (x >= 0xe0 && x <= 0xf9) || |
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| 96 | (x >= 0x120 && x <= 0x122) || |
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| 97 | (x >= 0x130 && x <= 0x133) || |
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| 98 | (x >= 0x200 && x <= 0x2a5) || |
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| 99 | (x >= 0x2a7 && x <= 0x2b6) || |
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| 100 | (x >= 0xf00 && x <= 0xffe) || |
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| 101 | (x >= 0x1000 && x <= 0x10fe)) |
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| 102 | return 1; |
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| 103 | |
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| 104 | switch (x) |
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| 105 | { |
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| 106 | case 0x01: |
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| 107 | case 0x02: |
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| 108 | case 0x04: |
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| 109 | case 0x11: |
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| 110 | case 0x14: |
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| 111 | case 0x15: |
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| 112 | case 0x1e: |
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| 113 | case 0x22: |
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| 114 | case 0x25: |
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| 115 | case 0x28: |
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| 116 | case 0x29: |
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| 117 | case 0x2a: |
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| 118 | case 0xa5: |
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| 119 | case 0xfc: |
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| 120 | case 0x2f8: |
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| 121 | case 0x2f9: |
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| 122 | return 1; |
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| 123 | case 0x00: |
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| 124 | table = u0; |
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| 125 | size = sizeof(u0); |
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| 126 | break; |
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| 127 | case 0x03: |
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| 128 | table = u3; |
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| 129 | size = sizeof(u3); |
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| 130 | break; |
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| 131 | case 0x05: |
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| 132 | table = u5; |
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| 133 | size = sizeof(u5); |
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| 134 | break; |
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| 135 | case 0x06: |
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| 136 | table = u6; |
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| 137 | size = sizeof(u6); |
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| 138 | break; |
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| 139 | case 0x07: |
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| 140 | table = u7; |
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| 141 | size = sizeof(u7); |
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| 142 | break; |
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| 143 | case 0x08: |
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| 144 | table = u8; |
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| 145 | size = sizeof(u8); |
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| 146 | break; |
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| 147 | case 0x09: |
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| 148 | table = u9; |
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| 149 | size = sizeof(u9); |
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| 150 | break; |
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| 151 | case 0x0a: |
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| 152 | table = ua; |
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| 153 | size = sizeof(ua); |
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| 154 | break; |
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| 155 | case 0x0b: |
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| 156 | table = ub; |
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| 157 | size = sizeof(ub); |
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| 158 | break; |
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| 159 | case 0x0c: |
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| 160 | table = uc; |
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| 161 | size = sizeof(uc); |
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| 162 | break; |
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| 163 | case 0x0d: |
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| 164 | table = ud; |
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| 165 | size = sizeof(ud); |
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| 166 | break; |
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| 167 | case 0x0e: |
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| 168 | table = ue; |
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| 169 | size = sizeof(ue); |
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| 170 | break; |
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| 171 | case 0x0f: |
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| 172 | table = uf; |
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| 173 | size = sizeof(uf); |
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| 174 | break; |
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| 175 | case 0x10: |
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| 176 | table = u10; |
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| 177 | size = sizeof(u10); |
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| 178 | break; |
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| 179 | case 0x12: |
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| 180 | table = u12; |
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| 181 | size = sizeof(u12); |
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| 182 | break; |
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| 183 | case 0x13: |
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| 184 | table = u13; |
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| 185 | size = sizeof(u13); |
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| 186 | break; |
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| 187 | case 0x16: |
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| 188 | table = u16; |
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| 189 | size = sizeof(u16); |
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| 190 | break; |
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| 191 | case 0x17: |
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| 192 | table = u17; |
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| 193 | size = sizeof(u17); |
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| 194 | break; |
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| 195 | case 0x18: |
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| 196 | table = u18; |
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| 197 | size = sizeof(u18); |
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| 198 | break; |
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| 199 | case 0x19: |
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| 200 | table = u19; |
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| 201 | size = sizeof(u19); |
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| 202 | break; |
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| 203 | case 0x1a: |
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| 204 | table = u1a; |
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| 205 | size = sizeof(u1a); |
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| 206 | break; |
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| 207 | case 0x1b: |
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| 208 | table = u1b; |
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| 209 | size = sizeof(u1b); |
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| 210 | break; |
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| 211 | case 0x1c: |
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| 212 | table = u1c; |
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| 213 | size = sizeof(u1c); |
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| 214 | break; |
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| 215 | case 0x1d: |
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| 216 | table = u1d; |
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| 217 | size = sizeof(u1d); |
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| 218 | break; |
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| 219 | case 0x1f: |
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| 220 | table = u1f; |
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| 221 | size = sizeof(u1f); |
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| 222 | break; |
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| 223 | case 0x20: |
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| 224 | table = u20; |
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| 225 | size = sizeof(u20); |
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| 226 | break; |
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| 227 | case 0x21: |
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| 228 | table = u21; |
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| 229 | size = sizeof(u21); |
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| 230 | break; |
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| 231 | case 0x23: |
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| 232 | table = u23; |
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| 233 | size = sizeof(u23); |
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| 234 | break; |
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| 235 | case 0x24: |
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| 236 | table = u24; |
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| 237 | size = sizeof(u24); |
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| 238 | break; |
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| 239 | case 0x26: |
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| 240 | table = u26; |
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| 241 | size = sizeof(u26); |
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| 242 | break; |
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| 243 | case 0x27: |
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| 244 | table = u27; |
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| 245 | size = sizeof(u27); |
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| 246 | break; |
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| 247 | case 0x2b: |
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| 248 | table = u2b; |
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| 249 | size = sizeof(u2b); |
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| 250 | break; |
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| 251 | case 0x2c: |
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| 252 | table = u2c; |
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| 253 | size = sizeof(u2c); |
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| 254 | break; |
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| 255 | case 0x2d: |
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| 256 | table = u2d; |
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| 257 | size = sizeof(u2d); |
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| 258 | break; |
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| 259 | case 0x2e: |
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| 260 | table = u2e; |
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| 261 | size = sizeof(u2e); |
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| 262 | break; |
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| 263 | case 0x2f: |
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| 264 | table = u2f; |
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| 265 | size = sizeof(u2f); |
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| 266 | break; |
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| 267 | case 0x30: |
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| 268 | table = u30; |
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| 269 | size = sizeof(u30); |
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| 270 | break; |
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| 271 | case 0x31: |
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| 272 | table = u31; |
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| 273 | size = sizeof(u31); |
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| 274 | break; |
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| 275 | case 0x32: |
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| 276 | table = u32; |
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| 277 | size = sizeof(u32); |
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| 278 | break; |
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| 279 | case 0x4d: |
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| 280 | table = u4d; |
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| 281 | size = sizeof(u4d); |
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| 282 | break; |
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| 283 | case 0x9f: |
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| 284 | table = u9f; |
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| 285 | size = sizeof(u9f); |
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| 286 | break; |
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| 287 | case 0xa4: |
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| 288 | table = ua4; |
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| 289 | size = sizeof(ua4); |
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| 290 | break; |
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| 291 | case 0xa6: |
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| 292 | table = ua6; |
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| 293 | size = sizeof(ua6); |
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| 294 | break; |
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| 295 | case 0xa7: |
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| 296 | table = ua7; |
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| 297 | size = sizeof(ua7); |
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| 298 | break; |
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| 299 | case 0xa8: |
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| 300 | table = ua8; |
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| 301 | size = sizeof(ua8); |
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| 302 | break; |
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| 303 | case 0xa9: |
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| 304 | table = ua9; |
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| 305 | size = sizeof(ua9); |
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| 306 | break; |
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| 307 | case 0xaa: |
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| 308 | table = uaa; |
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| 309 | size = sizeof(uaa); |
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| 310 | break; |
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| 311 | case 0xab: |
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| 312 | table = uab; |
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| 313 | size = sizeof(uab); |
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| 314 | break; |
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| 315 | case 0xd7: |
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| 316 | table = ud7; |
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| 317 | size = sizeof(ud7); |
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| 318 | break; |
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| 319 | case 0xfa: |
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| 320 | table = ufa; |
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| 321 | size = sizeof(ufa); |
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| 322 | break; |
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| 323 | case 0xfb: |
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| 324 | table = ufb; |
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| 325 | size = sizeof(ufb); |
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| 326 | break; |
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| 327 | case 0xfd: |
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| 328 | table = ufd; |
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| 329 | size = sizeof(ufd); |
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| 330 | break; |
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| 331 | case 0xfe: |
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| 332 | table = ufe; |
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| 333 | size = sizeof(ufe); |
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| 334 | break; |
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| 335 | case 0xff: |
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| 336 | table = uff; |
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| 337 | size = sizeof(uff); |
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| 338 | break; |
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| 339 | case 0x100: |
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| 340 | table = u100; |
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| 341 | size = sizeof(u100); |
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| 342 | break; |
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| 343 | case 0x101: |
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| 344 | table = u101; |
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| 345 | size = sizeof(u101); |
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| 346 | break; |
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| 347 | case 0x102: |
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| 348 | table = u102; |
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| 349 | size = sizeof(u102); |
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| 350 | break; |
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| 351 | case 0x103: |
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| 352 | table = u103; |
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| 353 | size = sizeof(u103); |
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| 354 | break; |
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| 355 | case 0x104: |
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| 356 | table = u104; |
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| 357 | size = sizeof(u104); |
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| 358 | break; |
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| 359 | case 0x108: |
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| 360 | table = u108; |
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| 361 | size = sizeof(u108); |
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| 362 | break; |
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| 363 | case 0x109: |
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| 364 | table = u109; |
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| 365 | size = sizeof(u109); |
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| 366 | break; |
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| 367 | case 0x10a: |
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| 368 | table = u10a; |
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| 369 | size = sizeof(u10a); |
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| 370 | break; |
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| 371 | case 0x10b: |
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| 372 | table = u10b; |
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| 373 | size = sizeof(u10b); |
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| 374 | break; |
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| 375 | case 0x10c: |
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| 376 | table = u10c; |
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| 377 | size = sizeof(u10c); |
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| 378 | break; |
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| 379 | case 0x10e: |
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| 380 | table = u10e; |
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| 381 | size = sizeof(u10e); |
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| 382 | break; |
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| 383 | case 0x110: |
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| 384 | table = u110; |
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| 385 | size = sizeof(u110); |
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| 386 | break; |
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| 387 | case 0x123: |
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| 388 | table = u123; |
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| 389 | size = sizeof(u123); |
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| 390 | break; |
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| 391 | case 0x124: |
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| 392 | table = u124; |
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| 393 | size = sizeof(u124); |
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| 394 | break; |
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| 395 | case 0x134: |
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| 396 | table = u134; |
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| 397 | size = sizeof(u134); |
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| 398 | break; |
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| 399 | case 0x1d0: |
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| 400 | table = u1d0; |
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| 401 | size = sizeof(u1d0); |
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| 402 | break; |
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| 403 | case 0x1d1: |
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| 404 | table = u1d1; |
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| 405 | size = sizeof(u1d1); |
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| 406 | break; |
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| 407 | case 0x1d2: |
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| 408 | table = u1d2; |
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| 409 | size = sizeof(u1d2); |
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| 410 | break; |
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| 411 | case 0x1d3: |
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| 412 | table = u1d3; |
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| 413 | size = sizeof(u1d3); |
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| 414 | break; |
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| 415 | case 0x1d4: |
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| 416 | table = u1d4; |
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| 417 | size = sizeof(u1d4); |
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| 418 | break; |
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| 419 | case 0x1d5: |
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| 420 | table = u1d5; |
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| 421 | size = sizeof(u1d5); |
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| 422 | break; |
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| 423 | case 0x1d6: |
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| 424 | table = u1d6; |
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| 425 | size = sizeof(u1d6); |
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| 426 | break; |
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| 427 | case 0x1d7: |
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| 428 | table = u1d7; |
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| 429 | size = sizeof(u1d7); |
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| 430 | break; |
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| 431 | case 0x1f0: |
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| 432 | table = u1f0; |
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| 433 | size = sizeof(u1f0); |
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| 434 | break; |
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| 435 | case 0x1f1: |
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| 436 | table = u1f1; |
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| 437 | size = sizeof(u1f1); |
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| 438 | break; |
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| 439 | case 0x1f2: |
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| 440 | table = u1f2; |
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| 441 | size = sizeof(u1f2); |
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| 442 | break; |
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| 443 | case 0x2a6: |
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| 444 | table = u2a6; |
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| 445 | size = sizeof(u2a6); |
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| 446 | break; |
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| 447 | case 0x2b7: |
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| 448 | table = u2b7; |
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| 449 | size = sizeof(u2b7); |
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| 450 | break; |
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| 451 | case 0x2fa: |
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| 452 | table = u2fa; |
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| 453 | size = sizeof(u2fa); |
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| 454 | break; |
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| 455 | case 0xe00: |
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| 456 | table = ue00; |
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| 457 | size = sizeof(ue00); |
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| 458 | break; |
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| 459 | case 0xe01: |
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| 460 | table = ue01; |
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| 461 | size = sizeof(ue01); |
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| 462 | break; |
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| 463 | case 0xfff: |
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| 464 | table = ufff; |
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| 465 | size = sizeof(ufff); |
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| 466 | break; |
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| 467 | case 0x10ff: |
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| 468 | table = u10ff; |
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| 469 | size = sizeof(u10ff); |
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| 470 | break; |
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| 471 | default: |
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| 472 | return 0; |
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| 473 | } |
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| 474 | /* we have narrowed down to a section of 256 characters to check */ |
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| 475 | /* now check if c matches the printuation wide-chars within that section */ |
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| 476 | ptr = (unsigned char *)table; |
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| 477 | ctmp = (unsigned char)c; |
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| 478 | while (ptr < table + size) |
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| 479 | { |
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| 480 | if (ctmp == *ptr) |
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| 481 | return 1; |
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| 482 | if (ctmp < *ptr) |
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| 483 | return 0; |
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| 484 | /* otherwise c > *ptr */ |
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| 485 | /* look for 0x0 as next element which indicates a range */ |
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| 486 | ++ptr; |
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| 487 | if (*ptr == 0x0) |
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| 488 | { |
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| 489 | /* we have a range..see if c falls within range */ |
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| 490 | ++ptr; |
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| 491 | if (ctmp <= *ptr) |
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| 492 | return 1; |
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| 493 | ++ptr; |
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| 494 | } |
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| 495 | } |
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| 496 | /* not in table */ |
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| 497 | return 0; |
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| 498 | #else |
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| 499 | return (c < (wint_t)0x100 ? isprint (c) : 0); |
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| 500 | #endif /* _MB_CAPABLE */ |
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| 501 | } |
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