47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
|
// © 2019 and later: Unicode, Inc. and others.
|
||
|
|
// License & terms of use: http://www.unicode.org/copyright.html
|
||
|
|
|
||
|
|
// ulayout_props.h
|
||
|
|
// created: 2019feb12 Markus W. Scherer
|
||
|
|
|
||
|
|
#ifndef __ULAYOUT_PROPS_H__
|
||
|
|
#define __ULAYOUT_PROPS_H__
|
||
|
|
|
||
|
|
#include "unicode/utypes.h"
|
||
|
|
|
||
|
|
// file definitions ------------------------------------------------------------
|
||
|
|
|
||
|
|
#define ULAYOUT_DATA_NAME "ulayout"
|
||
|
|
#define ULAYOUT_DATA_TYPE "icu"
|
||
|
|
|
||
|
|
// data format "Layo"
|
||
|
|
#define ULAYOUT_FMT_0 0x4c
|
||
|
|
#define ULAYOUT_FMT_1 0x61
|
||
|
|
#define ULAYOUT_FMT_2 0x79
|
||
|
|
#define ULAYOUT_FMT_3 0x6f
|
||
|
|
|
||
|
|
// indexes into indexes[]
|
||
|
|
enum {
|
||
|
|
// Element 0 stores the length of the indexes[] array.
|
||
|
|
ULAYOUT_IX_INDEXES_LENGTH,
|
||
|
|
// Elements 1..7 store the tops of consecutive code point tries.
|
||
|
|
// No trie is stored if the difference between two of these is less than 16.
|
||
|
|
ULAYOUT_IX_INPC_TRIE_TOP,
|
||
|
|
ULAYOUT_IX_INSC_TRIE_TOP,
|
||
|
|
ULAYOUT_IX_VO_TRIE_TOP,
|
||
|
|
ULAYOUT_IX_RESERVED_TOP,
|
||
|
|
|
||
|
|
ULAYOUT_IX_TRIES_TOP = 7,
|
||
|
|
|
||
|
|
ULAYOUT_IX_MAX_VALUES = 9,
|
||
|
|
|
||
|
|
// Length of indexes[]. Multiple of 4 to 16-align the tries.
|
||
|
|
ULAYOUT_IX_COUNT = 12
|
||
|
|
};
|
||
|
|
|
||
|
|
constexpr int32_t ULAYOUT_MAX_INPC_SHIFT = 24;
|
||
|
|
constexpr int32_t ULAYOUT_MAX_INSC_SHIFT = 16;
|
||
|
|
constexpr int32_t ULAYOUT_MAX_VO_SHIFT = 8;
|
||
|
|
|
||
|
|
#endif // __ULAYOUT_PROPS_H__
|