1 | /* |
2 | * Copyright (c) 2015, Intel Corporation |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions are met: |
6 | * |
7 | * * Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
9 | * * Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * * Neither the name of Intel Corporation nor the names of its contributors |
13 | * may be used to endorse or promote products derived from this software |
14 | * without specific prior written permission. |
15 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | #ifndef UNICODE_DEF_H |
30 | #define UNICODE_DEF_H |
31 | |
32 | #include "ue2common.h" |
33 | |
34 | #define MAX_UNICODE 0x10FFFF |
35 | #define INVALID_UNICODE 0xffffffff /* unicode could never go above 2^31 */ |
36 | |
37 | #define UTF_2CHAR_MIN (1U << 7) |
38 | #define UTF_3CHAR_MIN (1U << 11) |
39 | #define UTF_4CHAR_MIN (1U << 16) |
40 | #define UTF_CONT_SHIFT 6 |
41 | #define UTF_CONT_BYTE_RANGE (1U << UTF_CONT_SHIFT) |
42 | #define ((u8)0x80) /* 10xx xxxx */ |
43 | #define ((u8)0xc0) /* 110x xxxx */ |
44 | #define ((u8)0xe0) /* 1110 xxxx */ |
45 | #define ((u8)0xf0) /* 1111 0xxx */ |
46 | |
47 | #define UTF_CONT_BYTE_VALUE_MASK 0x3f |
48 | |
49 | #define UTF_CONT_MIN UTF_CONT_BYTE_HEADER |
50 | #define UTF_CONT_MAX (UTF_TWO_BYTE_HEADER - 1) |
51 | |
52 | #define UTF_TWO_BYTE_MIN UTF_TWO_BYTE_HEADER |
53 | #define UTF_TWO_BYTE_MAX (UTF_THREE_BYTE_HEADER - 1) |
54 | |
55 | #define UTF_THREE_BYTE_MIN UTF_THREE_BYTE_HEADER |
56 | #define UTF_THREE_BYTE_MAX (UTF_FOUR_BYTE_HEADER - 1) |
57 | |
58 | #define UTF_FOUR_BYTE_MIN UTF_FOUR_BYTE_HEADER |
59 | #define UTF_FOUR_BYTE_MAX ((u8)0xf4) |
60 | |
61 | #define UTF_CONT_CR CharReach(UTF_CONT_MIN, UTF_CONT_MAX) |
62 | #define UTF_ASCII_CR CharReach(0, 127) |
63 | #define UTF_START_CR CharReach(UTF_TWO_BYTE_MIN, UTF_FOUR_BYTE_MAX) |
64 | #define UTF_TWO_START_CR CharReach(UTF_TWO_BYTE_MIN, UTF_TWO_BYTE_MAX) |
65 | #define UTF_THREE_START_CR CharReach(UTF_THREE_BYTE_MIN, UTF_THREE_BYTE_MAX) |
66 | #define UTF_FOUR_START_CR CharReach(UTF_FOUR_BYTE_MIN, UTF_FOUR_BYTE_MAX) |
67 | |
68 | #define UNICODE_SURROGATE_MIN 0xd800 |
69 | #define UNICODE_SURROGATE_MAX 0xdfff |
70 | |
71 | #ifdef __cplusplus |
72 | |
73 | namespace ue2 { |
74 | typedef u32 unichar; /* represents a unicode code point */ |
75 | |
76 | static UNUSED |
77 | u8 makeContByte(u8 val) { |
78 | return UTF_CONT_BYTE_HEADER | (val & UTF_CONT_BYTE_VALUE_MASK); |
79 | } |
80 | |
81 | } // namespace |
82 | |
83 | #endif // __cplusplus |
84 | |
85 | #endif |
86 | |