Tor 0.4.9.1-alpha-dev
compat_ctype.c
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1/* Copyright (c) 2003-2004, Roger Dingledine
2 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
3 * Copyright (c) 2007-2021, The Tor Project, Inc. */
4/* See LICENSE for licensing information */
5
6/**
7 * \file compat_ctype.c
8 * \brief Locale-independent character-type inspection (backend)
9 **/
10
12
13/**
14 * Tables to implement ctypes-replacement TOR_IS*() functions. Each table
15 * has 256 bits to look up whether a character is in some set or not. This
16 * fails on non-ASCII platforms, but it is hard to find a platform whose
17 * character set is not a superset of ASCII nowadays. */
18
19/**@{*/
20const uint32_t TOR_ISALPHA_TABLE[8] =
21 { 0, 0, 0x7fffffe, 0x7fffffe, 0, 0, 0, 0 };
22const uint32_t TOR_ISALNUM_TABLE[8] =
23 { 0, 0x3ff0000, 0x7fffffe, 0x7fffffe, 0, 0, 0, 0 };
24const uint32_t TOR_ISSPACE_TABLE[8] = { 0x3e00, 0x1, 0, 0, 0, 0, 0, 0 };
25const uint32_t TOR_ISXDIGIT_TABLE[8] =
26 { 0, 0x3ff0000, 0x7e, 0x7e, 0, 0, 0, 0 };
27const uint32_t TOR_ISDIGIT_TABLE[8] = { 0, 0x3ff0000, 0, 0, 0, 0, 0, 0 };
28const uint32_t TOR_ISPRINT_TABLE[8] =
29 { 0, 0xffffffff, 0xffffffff, 0x7fffffff, 0, 0, 0, 0x0 };
30const uint32_t TOR_ISUPPER_TABLE[8] = { 0, 0, 0x7fffffe, 0, 0, 0, 0, 0 };
31const uint32_t TOR_ISLOWER_TABLE[8] = { 0, 0, 0, 0x7fffffe, 0, 0, 0, 0 };
32/**@}*/
33
34/** Upper-casing and lowercasing tables to map characters to upper/lowercase
35 * equivalents. Used by tor_toupper() and tor_tolower(). */
36/**@{*/
37const uint8_t TOR_TOUPPER_TABLE[256] = {
38 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
39 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
40 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,
41 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,
42 64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,
43 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,
44 96,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,
45 80,81,82,83,84,85,86,87,88,89,90,123,124,125,126,127,
46 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
47 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
48 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
49 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
50 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
51 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
52 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
53 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,
54};
55const uint8_t TOR_TOLOWER_TABLE[256] = {
56 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
57 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
58 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,
59 48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,
60 64,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,
61 112,113,114,115,116,117,118,119,120,121,122,91,92,93,94,95,
62 96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,
63 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,
64 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
65 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
66 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,
67 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
68 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,
69 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
70 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,
71 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,
72};
73/**@}*/
const uint8_t TOR_TOUPPER_TABLE[256]
Definition: compat_ctype.c:37
const uint32_t TOR_ISALPHA_TABLE[8]
Definition: compat_ctype.c:20
Locale-independent character-type inspection (header)