164339d36f8bd4db5025fe2988eda22b491a9219cFredrik Roubert// Copyright (C) 2016 and later: Unicode, Inc. and others. 264339d36f8bd4db5025fe2988eda22b491a9219cFredrik Roubert// License & terms of use: http://www.unicode.org/copyright.html 3b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* 4b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru****************************************************************************** 5b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* 6fceb39872958b9fa2505e63f8b8699a9e0f882f4ccornelius* Copyright (C) 2001-2014, International Business Machines 7b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* Corporation and others. All Rights Reserved. 8b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* 9b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru****************************************************************************** 10b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* file name: utrie2.h 11b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* encoding: US-ASCII 12b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* tab size: 8 (not used) 13b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* indentation:4 14b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* 15b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* created on: 2008aug16 (starting from a copy of utrie.h) 16b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru* created by: Markus W. Scherer 17b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru*/ 18b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 19b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#ifndef __UTRIE2_H__ 20b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define __UTRIE2_H__ 21b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 22b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#include "unicode/utypes.h" 2383a171d1a62abf406f7f44ae671823d5ec20db7dCraig Cornelius#include "putilimp.h" 24b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#include "udataswp.h" 25b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 26b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CDECL_BEGIN 27b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 28b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querustruct UTrie; /* forward declaration */ 29b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#ifndef __UTRIE_H__ 30b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef struct UTrie UTrie; 31b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#endif 32b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 33b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 34b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * \file 35b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 36b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * This is a common implementation of a Unicode trie. 37b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * It is a kind of compressed, serializable table of 16- or 32-bit values associated with 38b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Unicode code points (0..0x10ffff). (A map from code points to integers.) 39b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 40b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * This is the second common version of a Unicode trie (hence the name UTrie2). 41b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Compared with UTrie version 1: 42b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - Still splitting BMP code points 11:5 bits for index and data table lookups. 43b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - Still separate data for lead surrogate code _units_ vs. code _points_, 44b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * but the lead surrogate code unit values are not required any more 45b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * for data lookup for supplementary code points. 46b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - The "folding" mechanism is removed. In UTrie version 1, this somewhat 47b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * hard-to-explain mechanism was meant to be used for optimized UTF-16 48b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * processing, with application-specific encoding of indexing bits 49b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * in the lead surrogate data for the associated supplementary code points. 50b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - For the last single-value code point range (ending with U+10ffff), 51b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the starting code point ("highStart") and the value are stored. 52b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - For supplementary code points U+10000..highStart-1 a three-table lookup 53b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * (two index tables and one data table) is used. The first index 54b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * is truncated, omitting both the BMP portion and the high range. 55b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - There is a special small index for 2-byte UTF-8, and the initial data 56b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * entries are designed for fast 1/2-byte UTF-8 lookup. 57b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 58b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 59b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 60b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Trie structure. 61b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Use only with public API macros and functions. 62b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 63b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querustruct UTrie2; 64b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef struct UTrie2 UTrie2; 65b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 66b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Public UTrie2 API functions: read-only access ---------------------------- */ 67b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 68b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 69b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Selectors for the width of a UTrie2 data value. 70b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 71b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruenum UTrie2ValueBits { 72b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 16 bits per UTrie2 data value. */ 73b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_16_VALUE_BITS, 74b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 32 bits per UTrie2 data value. */ 75b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_32_VALUE_BITS, 76b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Number of selectors for the width of UTrie2 data values. */ 77b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_COUNT_VALUE_BITS 78b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru}; 79b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef enum UTrie2ValueBits UTrie2ValueBits; 80b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 81b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 82b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Open a frozen trie from its serialized from, stored in 32-bit-aligned memory. 83b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Inverse of utrie2_serialize(). 84b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The memory must remain valid and unchanged as long as the trie is used. 85b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * You must utrie2_close() the trie once you are done using it. 86b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 87b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param valueBits selects the data entry size; results in an 88b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * U_INVALID_FORMAT_ERROR if it does not match the serialized form 89b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param data a pointer to 32-bit-aligned memory containing the serialized form of a UTrie2 90b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param length the number of bytes available at data; 91b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * can be more than necessary 92b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pActualLength receives the actual number of bytes at data taken up by the trie data; 93b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * can be NULL 94b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 95b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the unserialized trie 96b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 97b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_open 98b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_serialize 99b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 100b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 101b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_openFromSerialized(UTrie2ValueBits valueBits, 102b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const void *data, int32_t length, int32_t *pActualLength, 103b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 104b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 105b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 106b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Open a frozen, empty "dummy" trie. 107b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * A dummy trie is an empty trie, used when a real data trie cannot 108b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * be loaded. Equivalent to calling utrie2_open() and utrie2_freeze(), 109b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * but without internally creating and compacting/serializing the 110b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * builder data structure. 111b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 112b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The trie always returns the initialValue, 113b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * or the errorValue for out-of-range code points and illegal UTF-8. 114b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 115b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * You must utrie2_close() the trie once you are done using it. 116b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 117b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param valueBits selects the data entry size 118b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param initialValue the initial value that is set for all code points 119b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param errorValue the value for out-of-range code points and illegal UTF-8 120b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 121b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the dummy trie 122b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 123b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_openFromSerialized 124b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_open 125b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 126b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 127b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_openDummy(UTrie2ValueBits valueBits, 128b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint32_t initialValue, uint32_t errorValue, 129b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 130b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 131b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 132b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Get a value from a code point as stored in the trie. 133b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Easier to use than UTRIE2_GET16() and UTRIE2_GET32() but slower. 134b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Easier to use because, unlike the macros, this function works on all UTrie2 135b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * objects, frozen or not, holding 16-bit or 32-bit data values. 136b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 137b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the trie 138b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c the code point 139b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the value 140b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 141b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI uint32_t U_EXPORT2 142b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_get32(const UTrie2 *trie, UChar32 c); 143b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 144b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* enumeration callback types */ 145b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 146b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 147b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Callback from utrie2_enum(), extracts a uint32_t value from a 148b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * trie value. This value will be passed on to the UTrie2EnumRange function. 149b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 150b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param context an opaque pointer, as passed into utrie2_enum() 151b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param value a value from the trie 152b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the value that is to be passed on to the UTrie2EnumRange function 153b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 154b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef uint32_t U_CALLCONV 155b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruUTrie2EnumValue(const void *context, uint32_t value); 156b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 157b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 158b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Callback from utrie2_enum(), is called for each contiguous range 159b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of code points with the same value as retrieved from the trie and 160b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * transformed by the UTrie2EnumValue function. 161b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 162b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The callback function can stop the enumeration by returning FALSE. 163b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 164b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param context an opaque pointer, as passed into utrie2_enum() 165b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start the first code point in a contiguous range with value 166b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param end the last code point in a contiguous range with value (inclusive) 167b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param value the value that is set for all code points in [start..end] 168b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return FALSE to stop the enumeration 169b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 170b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef UBool U_CALLCONV 171b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruUTrie2EnumRange(const void *context, UChar32 start, UChar32 end, uint32_t value); 172b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 173b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 174b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Enumerate efficiently all values in a trie. 175b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Do not modify the trie during the enumeration. 176b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 177b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * For each entry in the trie, the value to be delivered is passed through 178b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the UTrie2EnumValue function. 179b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The value is unchanged if that function pointer is NULL. 180b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 181b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * For each contiguous range of code points with a given (transformed) value, 182b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the UTrie2EnumRange function is called. 183b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 184b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie a pointer to the trie 185b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param enumValue a pointer to a function that may transform the trie entry value, 186b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * or NULL if the values from the trie are to be used directly 187b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param enumRange a pointer to a function that is called for each contiguous range 188b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of code points with the same (transformed) value 189b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param context an opaque pointer that is passed on to the callback functions 190b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 191b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 192b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_enum(const UTrie2 *trie, 193b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange, const void *context); 194b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 195b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Building a trie ---------------------------------------------------------- */ 196b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 197b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 198b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Open an empty, writable trie. At build time, 32-bit data values are used. 199b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * utrie2_freeze() takes a valueBits parameter 200b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * which determines the data value width in the serialized and frozen forms. 201b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * You must utrie2_close() the trie once you are done using it. 202b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 203b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param initialValue the initial value that is set for all code points 204b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param errorValue the value for out-of-range code points and illegal UTF-8 205b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 206b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return a pointer to the allocated and initialized new trie 207b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 208b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 209b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_open(uint32_t initialValue, uint32_t errorValue, UErrorCode *pErrorCode); 210b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 211b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 212b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Clone a trie. 213b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * You must utrie2_close() the clone once you are done using it. 214b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 215b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param other the trie to clone 216b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 217b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return a pointer to the new trie clone 218b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 219b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 220b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_clone(const UTrie2 *other, UErrorCode *pErrorCode); 221b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 222b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 223b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Clone a trie. The clone will be mutable/writable even if the other trie 224b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * is frozen. (See utrie2_freeze().) 225b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * You must utrie2_close() the clone once you are done using it. 226b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 227b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param other the trie to clone 228b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 229b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return a pointer to the new trie clone 230b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 231b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 232b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_cloneAsThawed(const UTrie2 *other, UErrorCode *pErrorCode); 233b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 234b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 235b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Close a trie and release associated memory. 236b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 237b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the trie 238b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 239b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 240b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_close(UTrie2 *trie); 241b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 242b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 243b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Set a value for a code point. 244b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 245b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the unfrozen trie 246b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c the code point 247b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param value the value 248b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes: 249b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_NO_WRITE_PERMISSION if the trie is frozen 250b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 251b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 252b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_set32(UTrie2 *trie, UChar32 c, uint32_t value, UErrorCode *pErrorCode); 253b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 254b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 255b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Set a value in a range of code points [start..end]. 256b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * All code points c with start<=c<=end will get the value if 257b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * overwrite is TRUE or if the old value is the initial value. 258b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 259b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the unfrozen trie 260b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start the first code point to get the value 261b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param end the last code point to get the value (inclusive) 262b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param value the value 263b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param overwrite flag for whether old non-initial values are to be overwritten 264b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes: 265b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_NO_WRITE_PERMISSION if the trie is frozen 266b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 267b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 268b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_setRange32(UTrie2 *trie, 269b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UChar32 start, UChar32 end, 270b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint32_t value, UBool overwrite, 271b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 272b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 273b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 274b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Freeze a trie. Make it immutable (read-only) and compact it, 275b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * ready for serialization and for use with fast macros. 276b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Functions to set values will fail after serializing. 277b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 278b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * A trie can be frozen only once. If this function is called again with different 279b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * valueBits then it will set a U_ILLEGAL_ARGUMENT_ERROR. 280b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 281b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the trie 282b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param valueBits selects the data entry size; if smaller than 32 bits, then 283b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the values stored in the trie will be truncated 284b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes: 285b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_INDEX_OUTOFBOUNDS_ERROR if the compacted index or data arrays are too long 286b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * for serialization 287b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * (the trie will be immutable and usable, 288b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * but not frozen and not usable with the fast macros) 289b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 290b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_cloneAsThawed 291b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 292b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 293b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_freeze(UTrie2 *trie, UTrie2ValueBits valueBits, UErrorCode *pErrorCode); 294b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 295b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 296b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Test if the trie is frozen. (See utrie2_freeze().) 297b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 298b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the trie 299b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return TRUE if the trie is frozen, that is, immutable, ready for serialization 300b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * and for use with fast macros 301b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 302b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UBool U_EXPORT2 303b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_isFrozen(const UTrie2 *trie); 304b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 305b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 306b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Serialize a frozen trie into 32-bit aligned memory. 307b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * If the trie is not frozen, then the function returns with a U_ILLEGAL_ARGUMENT_ERROR. 308b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * A trie can be serialized multiple times. 309b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 310b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the frozen trie 311b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param data a pointer to 32-bit-aligned memory to be filled with the trie data, 312b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * can be NULL if capacity==0 313b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param capacity the number of bytes available at data, 314b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * or 0 for preflighting 315b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes: 316b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_BUFFER_OVERFLOW_ERROR if the data storage block is too small for serialization 317b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_ILLEGAL_ARGUMENT_ERROR if the trie is not frozen or the data and capacity 318b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * parameters are bad 319b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the number of bytes written or needed for the trie 320b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 321b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @see utrie2_openFromSerialized() 322b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 323b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI int32_t U_EXPORT2 324fceb39872958b9fa2505e63f8b8699a9e0f882f4ccorneliusutrie2_serialize(const UTrie2 *trie, 325b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru void *data, int32_t capacity, 326b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 327b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 328b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Public UTrie2 API: miscellaneous functions ------------------------------- */ 329b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 330b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 331b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Get the UTrie version from 32-bit-aligned memory containing the serialized form 332b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of either a UTrie (version 1) or a UTrie2 (version 2). 333b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 334b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param data a pointer to 32-bit-aligned memory containing the serialized form 335b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of a UTrie, version 1 or 2 336b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param length the number of bytes available at data; 337b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * can be more than necessary (see return value) 338b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param anyEndianOk If FALSE, only platform-endian serialized forms are recognized. 339b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * If TRUE, opposite-endian serialized forms are recognized as well. 340b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the UTrie version of the serialized form, or 0 if it is not 341b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * recognized as a serialized UTrie 342b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 343b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI int32_t U_EXPORT2 344b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_getVersion(const void *data, int32_t length, UBool anyEndianOk); 345b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 346b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 347b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Swap a serialized UTrie2. 348b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @internal 349b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 350b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI int32_t U_EXPORT2 351b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_swap(const UDataSwapper *ds, 352b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const void *inData, int32_t length, void *outData, 353b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 354b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 355b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 35627f654740f2a26ad62a5c155af9199af9e69b889claireho * Swap a serialized UTrie or UTrie2. 35727f654740f2a26ad62a5c155af9199af9e69b889claireho * @internal 35827f654740f2a26ad62a5c155af9199af9e69b889claireho */ 35927f654740f2a26ad62a5c155af9199af9e69b889clairehoU_CAPI int32_t U_EXPORT2 36027f654740f2a26ad62a5c155af9199af9e69b889clairehoutrie2_swapAnyVersion(const UDataSwapper *ds, 36127f654740f2a26ad62a5c155af9199af9e69b889claireho const void *inData, int32_t length, void *outData, 36227f654740f2a26ad62a5c155af9199af9e69b889claireho UErrorCode *pErrorCode); 36327f654740f2a26ad62a5c155af9199af9e69b889claireho 36427f654740f2a26ad62a5c155af9199af9e69b889claireho/** 365b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Build a UTrie2 (version 2) from a UTrie (version 1). 366b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Enumerates all values in the UTrie and builds a UTrie2 with the same values. 367b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The resulting UTrie2 will be frozen. 368b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 369b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie1 the runtime UTrie structure to be enumerated 370b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param errorValue the value for out-of-range code points and illegal UTF-8 371b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode 372b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return The frozen UTrie2 with the same values as the UTrie. 373b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 374b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI UTrie2 * U_EXPORT2 375b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_fromUTrie(const UTrie *trie1, uint32_t errorValue, UErrorCode *pErrorCode); 376b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 377b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Public UTrie2 API macros ------------------------------------------------- */ 378b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 379b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* 380b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * These macros provide fast data lookup from a frozen trie. 381b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * They will crash when used on an unfrozen trie. 382b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 383b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 384b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 385b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 16-bit trie value from a code point, with range checking. 386b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Returns trie->errorValue if c is not in the range 0..U+10ffff. 387b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 388b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 389b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code point 390b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint16_t) The code point's trie value. 391b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 392b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET16(trie, c) _UTRIE2_GET((trie), index, (trie)->indexLength, (c)) 393b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 394b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 395b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 32-bit trie value from a code point, with range checking. 396b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Returns trie->errorValue if c is not in the range 0..U+10ffff. 397b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 398b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 399b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code point 400b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint32_t) The code point's trie value. 401b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 402b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET32(trie, c) _UTRIE2_GET((trie), data32, 0, (c)) 403b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 404b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 405b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-16: Get the next code point (UChar32 c, out), post-increment src, 406b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * and get a 16-bit value from the trie. 407b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 408b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 409b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const UChar *, in/out) the source text pointer 410b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param limit (const UChar *, in) the limit pointer for the text, or NULL if NUL-terminated 411b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, out) variable for the code point 412b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint16_t variable for the trie lookup result 413b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 414b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U16_NEXT16(trie, src, limit, c, result) _UTRIE2_U16_NEXT(trie, index, src, limit, c, result) 415b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 416b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 417b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-16: Get the next code point (UChar32 c, out), post-increment src, 418b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * and get a 32-bit value from the trie. 419b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 420b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 421b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const UChar *, in/out) the source text pointer 422b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param limit (const UChar *, in) the limit pointer for the text, or NULL if NUL-terminated 423b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, out) variable for the code point 424b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint32_t, out) uint32_t variable for the trie lookup result 425b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 426b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U16_NEXT32(trie, src, limit, c, result) _UTRIE2_U16_NEXT(trie, data32, src, limit, c, result) 427b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 428b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 429b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-16: Get the previous code point (UChar32 c, out), pre-decrement src, 430b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * and get a 16-bit value from the trie. 431b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 432b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 433b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start (const UChar *, in) the start pointer for the text 434b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const UChar *, in/out) the source text pointer 435b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, out) variable for the code point 436b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint16_t variable for the trie lookup result 437b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 438b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U16_PREV16(trie, start, src, c, result) _UTRIE2_U16_PREV(trie, index, start, src, c, result) 439b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 440b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 441b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-16: Get the previous code point (UChar32 c, out), pre-decrement src, 442b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * and get a 32-bit value from the trie. 443b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 444b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 445b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start (const UChar *, in) the start pointer for the text 446b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const UChar *, in/out) the source text pointer 447b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, out) variable for the code point 448b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint32_t, out) uint32_t variable for the trie lookup result 449b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 450b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U16_PREV32(trie, start, src, c, result) _UTRIE2_U16_PREV(trie, data32, start, src, c, result) 451b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 452b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 453b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-8: Post-increment src and get a 16-bit value from the trie. 454b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 455b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 456b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const char *, in/out) the source text pointer 457b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param limit (const char *, in) the limit pointer for the text (must not be NULL) 458b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint16_t variable for the trie lookup result 459b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 460b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U8_NEXT16(trie, src, limit, result)\ 461b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_U8_NEXT(trie, data16, index, src, limit, result) 462b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 463b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 464b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-8: Post-increment src and get a 32-bit value from the trie. 465b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 466b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 467b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const char *, in/out) the source text pointer 468b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param limit (const char *, in) the limit pointer for the text (must not be NULL) 469b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint32_t variable for the trie lookup result 470b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 471b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U8_NEXT32(trie, src, limit, result) \ 472b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_U8_NEXT(trie, data32, data32, src, limit, result) 473b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 474b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 475b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-8: Pre-decrement src and get a 16-bit value from the trie. 476b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 477b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 478b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start (const char *, in) the start pointer for the text 479b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const char *, in/out) the source text pointer 480b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint16_t variable for the trie lookup result 481b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 482b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U8_PREV16(trie, start, src, result) \ 483b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_U8_PREV(trie, data16, index, start, src, result) 484b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 485b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 486b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-8: Pre-decrement src and get a 32-bit value from the trie. 487b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 488b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 489b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param start (const char *, in) the start pointer for the text 490b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param src (const char *, in/out) the source text pointer 491b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param result (uint16_t, out) uint32_t variable for the trie lookup result 492b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 493b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_U8_PREV32(trie, start, src, result) \ 494b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_U8_PREV(trie, data32, data32, start, src, result) 495b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 496b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Public UTrie2 API: optimized UTF-16 access ------------------------------- */ 497b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 498b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* 499b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The following functions and macros are used for highly optimized UTF-16 500b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * text processing. The UTRIE2_U16_NEXTxy() macros do not depend on these. 501b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 502b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * A UTrie2 stores separate values for lead surrogate code _units_ vs. code _points_. 503b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTF-16 text processing can be optimized by detecting surrogate pairs and 504b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * assembling supplementary code points only when there is non-trivial data 505b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * available. 506b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 507b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * At build-time, use utrie2_enumForLeadSurrogate() to see if there 508b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * is non-trivial (non-initialValue) data for any of the supplementary 509b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * code points associated with a lead surrogate. 510b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * If so, then set a special (application-specific) value for the 511b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * lead surrogate code _unit_, with utrie2_set32ForLeadSurrogateCodeUnit(). 512b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 513b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * At runtime, use UTRIE2_GET16_FROM_U16_SINGLE_LEAD() or 514b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * UTRIE2_GET32_FROM_U16_SINGLE_LEAD() per code unit. If there is non-trivial 515b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * data and the code unit is a lead surrogate, then check if a trail surrogate 516b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * follows. If so, assemble the supplementary code point with 517b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * U16_GET_SUPPLEMENTARY() and look up its value with UTRIE2_GET16_FROM_SUPP() 518b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * or UTRIE2_GET32_FROM_SUPP(); otherwise reset the lead 519b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * surrogate's value or do a code point lookup for it. 520b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 521b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * If there is only trivial data for lead and trail surrogates, then processing 522b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * can often skip them. For example, in normalization or case mapping 523b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * all characters that do not have any mappings are simply copied as is. 524b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 525b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 526b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 527b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Get a value from a lead surrogate code unit as stored in the trie. 528b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 529b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the trie 530b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c the code unit (U+D800..U+DBFF) 531b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return the value 532b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 533b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI uint32_t U_EXPORT2 534b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_get32FromLeadSurrogateCodeUnit(const UTrie2 *trie, UChar32 c); 535b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 536b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 537b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Enumerate the trie values for the 1024=0x400 code points 538b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * corresponding to a given lead surrogate. 539b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * For example, for the lead surrogate U+D87E it will enumerate the values 540b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * for [U+2F800..U+2FC00[. 541b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Used by data builder code that sets special lead surrogate code unit values 542b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * for optimized UTF-16 string processing. 543b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 544b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Do not modify the trie during the enumeration. 545b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 546b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Except for the limited code point range, this functions just like utrie2_enum(): 547b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * For each entry in the trie, the value to be delivered is passed through 548b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the UTrie2EnumValue function. 549b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The value is unchanged if that function pointer is NULL. 550b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 551b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * For each contiguous range of code points with a given (transformed) value, 552b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * the UTrie2EnumRange function is called. 553b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 554b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie a pointer to the trie 555b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param enumValue a pointer to a function that may transform the trie entry value, 556b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * or NULL if the values from the trie are to be used directly 557b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param enumRange a pointer to a function that is called for each contiguous range 558b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of code points with the same (transformed) value 559b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param context an opaque pointer that is passed on to the callback functions 560b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 561b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 562b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_enumForLeadSurrogate(const UTrie2 *trie, UChar32 lead, 563b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTrie2EnumValue *enumValue, UTrie2EnumRange *enumRange, 564b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const void *context); 565b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 566b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 567b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Set a value for a lead surrogate code unit. 568b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 569b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie the unfrozen trie 570b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param lead the lead surrogate code unit (U+D800..U+DBFF) 571b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param value the value 572b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param pErrorCode an in/out ICU UErrorCode; among other possible error codes: 573b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * - U_NO_WRITE_PERMISSION if the trie is frozen 574b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 575b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CAPI void U_EXPORT2 576b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_set32ForLeadSurrogateCodeUnit(UTrie2 *trie, 577b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UChar32 lead, uint32_t value, 578b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UErrorCode *pErrorCode); 579b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 580b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 581b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 16-bit trie value from a UTF-16 single/lead code unit (<=U+ffff). 582b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Same as UTRIE2_GET16() if c is a BMP code point except for lead surrogates, 583b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * but smaller and faster. 584b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 585b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 586b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code unit, must be 0<=c<=U+ffff 587b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint16_t) The code unit's trie value. 588b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 589b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET16_FROM_U16_SINGLE_LEAD(trie, c) _UTRIE2_GET_FROM_U16_SINGLE_LEAD((trie), index, c) 590b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 591b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 592b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 32-bit trie value from a UTF-16 single/lead code unit (<=U+ffff). 593b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Same as UTRIE2_GET32() if c is a BMP code point except for lead surrogates, 594b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * but smaller and faster. 595b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 596b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 597b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code unit, must be 0<=c<=U+ffff 598b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint32_t) The code unit's trie value. 599b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 600b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET32_FROM_U16_SINGLE_LEAD(trie, c) _UTRIE2_GET_FROM_U16_SINGLE_LEAD((trie), data32, c) 601b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 602b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 603b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 16-bit trie value from a supplementary code point (U+10000..U+10ffff). 604b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 605b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 606b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code point, must be U+10000<=c<=U+10ffff 607b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint16_t) The code point's trie value. 608b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 609b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET16_FROM_SUPP(trie, c) _UTRIE2_GET_FROM_SUPP((trie), index, c) 610b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 611b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 612b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Return a 32-bit trie value from a supplementary code point (U+10000..U+10ffff). 613b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 614b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param trie (const UTrie2 *, in) a frozen trie 615b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @param c (UChar32, in) the input code point, must be U+10000<=c<=U+10ffff 616b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @return (uint32_t) The code point's trie value. 617b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 618b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define UTRIE2_GET32_FROM_SUPP(trie, c) _UTRIE2_GET_FROM_SUPP((trie), data32, c) 619b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 62050294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoU_CDECL_END 62150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 62250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho/* C++ convenience wrappers ------------------------------------------------- */ 62350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 62483a171d1a62abf406f7f44ae671823d5ec20db7dCraig Cornelius#ifdef __cplusplus 62550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 62683a171d1a62abf406f7f44ae671823d5ec20db7dCraig Cornelius#include "unicode/utf.h" 62750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#include "mutex.h" 62850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 62950294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoU_NAMESPACE_BEGIN 63050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 63150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho// Use the Forward/Backward subclasses below. 63250294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoclass UTrie2StringIterator : public UMemory { 63350294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehopublic: 63450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UTrie2StringIterator(const UTrie2 *t, const UChar *p) : 63550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho trie(t), codePointStart(p), codePointLimit(p), codePoint(U_SENTINEL) {} 63650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 63750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho const UTrie2 *trie; 63850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho const UChar *codePointStart, *codePointLimit; 63950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UChar32 codePoint; 64050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho}; 64150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 64250294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoclass BackwardUTrie2StringIterator : public UTrie2StringIterator { 64350294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehopublic: 64450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho BackwardUTrie2StringIterator(const UTrie2 *t, const UChar *s, const UChar *p) : 64550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UTrie2StringIterator(t, p), start(s) {} 64650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 64750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uint16_t previous16(); 64850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 64950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho const UChar *start; 65050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho}; 65150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 65250294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoclass ForwardUTrie2StringIterator : public UTrie2StringIterator { 65350294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehopublic: 65450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho // Iteration limit l can be NULL. 65550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho // In that case, the caller must detect c==0 and stop. 65650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho ForwardUTrie2StringIterator(const UTrie2 *t, const UChar *p, const UChar *l) : 65750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UTrie2StringIterator(t, p), limit(l) {} 65850294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 65950294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho uint16_t next16(); 66050294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 66150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho const UChar *limit; 66250294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho}; 66350294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 66450294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoU_NAMESPACE_END 66550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 66650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho#endif 66750294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 668b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Internal definitions ----------------------------------------------------- */ 669b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 67050294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoU_CDECL_BEGIN 67150294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho 672b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Build-time trie structure. */ 673b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querustruct UNewTrie2; 674b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querutypedef struct UNewTrie2 UNewTrie2; 675b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 676b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* 677b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Trie structure definition. 678b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 679b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Either the data table is 16 bits wide and accessed via the index 680b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * pointer, with each index item increased by indexLength; 681b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * in this case, data32==NULL, and data16 is used for direct ASCII access. 682b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 683b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Or the data table is 32 bits wide and accessed via the data32 pointer. 684b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 685b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Querustruct UTrie2 { 686b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* protected: used by macros and functions for reading values */ 687b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const uint16_t *index; 688b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const uint16_t *data16; /* for fast UTF-8 ASCII access, if 16b data */ 689b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const uint32_t *data32; /* NULL if 16b data is used via index */ 690b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 691b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int32_t indexLength, dataLength; 692b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint16_t index2NullOffset; /* 0xffff if there is no dedicated index-2 null block */ 693b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint16_t dataNullOffset; 694b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint32_t initialValue; 695b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Value returned for out-of-range code points and illegal UTF-8. */ 696b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint32_t errorValue; 697b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 698b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* Start of the last range which ends at U+10ffff, and its value. */ 699b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UChar32 highStart; 700b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int32_t highValueIndex; 701b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 702b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* private: used by builder and unserialization functions */ 703b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru void *memory; /* serialized bytes; NULL if not frozen yet */ 704b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int32_t length; /* number of serialized bytes at memory; 0 if not frozen yet */ 705b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UBool isMemoryOwned; /* TRUE if the trie owns the memory */ 706b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UBool padding1; 707b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int16_t padding2; 708b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UNewTrie2 *newTrie; /* builder object; NULL when frozen */ 709b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru}; 710b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 711b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 712b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Trie constants, defining shift widths, index array lengths, etc. 713b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 714b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * These are needed for the runtime macros but users can treat these as 715b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * implementation details and skip to the actual public API further below. 716b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 717b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruenum { 718b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Shift size for getting the index-1 table offset. */ 719b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_SHIFT_1=6+5, 720b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 721b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Shift size for getting the index-2 table offset. */ 722b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_SHIFT_2=5, 723b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 724b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 725b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Difference between the two shift sizes, 726b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * for getting an index-1 offset from an index-2 offset. 6=11-5 727b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 728b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_SHIFT_1_2=UTRIE2_SHIFT_1-UTRIE2_SHIFT_2, 729b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 730b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 731b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Number of index-1 entries for the BMP. 32=0x20 732b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * This part of the index-1 table is omitted from the serialized form. 733b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 734b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_OMITTED_BMP_INDEX_1_LENGTH=0x10000>>UTRIE2_SHIFT_1, 735b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 736b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Number of code points per index-1 table entry. 2048=0x800 */ 737b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_CP_PER_INDEX_1_ENTRY=1<<UTRIE2_SHIFT_1, 738b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 739b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Number of entries in an index-2 block. 64=0x40 */ 740b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_2_BLOCK_LENGTH=1<<UTRIE2_SHIFT_1_2, 741b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 742b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Mask for getting the lower bits for the in-index-2-block offset. */ 743b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_2_MASK=UTRIE2_INDEX_2_BLOCK_LENGTH-1, 744b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 745b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Number of entries in a data block. 32=0x20 */ 746b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_DATA_BLOCK_LENGTH=1<<UTRIE2_SHIFT_2, 747b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 748b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Mask for getting the lower bits for the in-data-block offset. */ 749b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_DATA_MASK=UTRIE2_DATA_BLOCK_LENGTH-1, 750b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 751b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 752b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Shift size for shifting left the index array values. 753b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Increases possible data size with 16-bit index values at the cost 754b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * of compactability. 755b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * This requires data blocks to be aligned by UTRIE2_DATA_GRANULARITY. 756b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 757b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_SHIFT=2, 758b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 759b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** The alignment size of a data block. Also the granularity for compaction. */ 760b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_DATA_GRANULARITY=1<<UTRIE2_INDEX_SHIFT, 761b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 762b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* Fixed layout of the first part of the index array. ------------------- */ 763b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 764b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 765b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The BMP part of the index-2 table is fixed and linear and starts at offset 0. 766b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Length=2048=0x800=0x10000>>UTRIE2_SHIFT_2. 767b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 768b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_2_OFFSET=0, 769b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 770b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 771b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The part of the index-2 table for U+D800..U+DBFF stores values for 772b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * lead surrogate code _units_ not code _points_. 773b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Values for lead surrogate code _points_ are indexed with this portion of the table. 774b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Length=32=0x20=0x400>>UTRIE2_SHIFT_2. (There are 1024=0x400 lead surrogates.) 775b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 776b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_LSCP_INDEX_2_OFFSET=0x10000>>UTRIE2_SHIFT_2, 777b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_LSCP_INDEX_2_LENGTH=0x400>>UTRIE2_SHIFT_2, 778b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 779b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** Count the lengths of both BMP pieces. 2080=0x820 */ 780b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_2_BMP_LENGTH=UTRIE2_LSCP_INDEX_2_OFFSET+UTRIE2_LSCP_INDEX_2_LENGTH, 781b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 782b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 783b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The 2-byte UTF-8 version of the index-2 table follows at offset 2080=0x820. 784b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Length 32=0x20 for lead bytes C0..DF, regardless of UTRIE2_SHIFT_2. 785b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 786b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_UTF8_2B_INDEX_2_OFFSET=UTRIE2_INDEX_2_BMP_LENGTH, 787b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_UTF8_2B_INDEX_2_LENGTH=0x800>>6, /* U+0800 is the first code point after 2-byte UTF-8 */ 788b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 789b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 790b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The index-1 table, only used for supplementary code points, at offset 2112=0x840. 791b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Variable length, for code points up to highStart, where the last single-value range starts. 792b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Maximum length 512=0x200=0x100000>>UTRIE2_SHIFT_1. 793b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * (For 0x100000 supplementary code points U+10000..U+10ffff.) 794b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 795b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The part of the index-2 table for supplementary code points starts 796b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * after this index-1 table. 797b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * 798b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Both the index-1 table and the following part of the index-2 table 799b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * are omitted completely if there is only BMP data. 800b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 801b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_INDEX_1_OFFSET=UTRIE2_UTF8_2B_INDEX_2_OFFSET+UTRIE2_UTF8_2B_INDEX_2_LENGTH, 802b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_MAX_INDEX_1_LENGTH=0x100000>>UTRIE2_SHIFT_1, 803b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 804b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /* 805b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Fixed layout of the first part of the data array. ----------------------- 806b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Starts with 4 blocks (128=0x80 entries) for ASCII. 807b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 808b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 809b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** 810b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * The illegal-UTF-8 data block follows the ASCII block, at offset 128=0x80. 811b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Used with linear access for single bytes 0..0xbf for simple error handling. 812b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Length 64=0x40, not UTRIE2_DATA_BLOCK_LENGTH. 813b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 814b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_BAD_UTF8_DATA_OFFSET=0x80, 815b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 816b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru /** The start of non-linear-ASCII data blocks, at offset 192=0xc0. */ 817b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru UTRIE2_DATA_START_OFFSET=0xc0 818b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru}; 819b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 820b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/* Internal functions and macros -------------------------------------------- */ 821b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 822b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 823b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Internal function for part of the UTRIE2_U8_NEXTxx() macro implementations. 824b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Do not call directly. 825b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @internal 826b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 827b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_INTERNAL int32_t U_EXPORT2 828b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_internalU8NextIndex(const UTrie2 *trie, UChar32 c, 829b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const uint8_t *src, const uint8_t *limit); 830b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 831b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 832b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Internal function for part of the UTRIE2_U8_PREVxx() macro implementations. 833b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Do not call directly. 834b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * @internal 835b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 836b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_INTERNAL int32_t U_EXPORT2 837b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queruutrie2_internalU8PrevIndex(const UTrie2 *trie, UChar32 c, 838b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru const uint8_t *start, const uint8_t *src); 839b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 840b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 841b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal low-level trie getter. Returns a data index. */ 842b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_RAW(offset, trieIndex, c) \ 843b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (((int32_t)((trieIndex)[(offset)+((c)>>UTRIE2_SHIFT_2)]) \ 844b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru <<UTRIE2_INDEX_SHIFT)+ \ 845b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ((c)&UTRIE2_DATA_MASK)) 846b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 847b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a UTF-16 single/lead code unit. Returns the data index. */ 848b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_FROM_U16_SINGLE_LEAD(trieIndex, c) _UTRIE2_INDEX_RAW(0, trieIndex, c) 849b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 850b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a lead surrogate code point (D800..DBFF). Returns the data index. */ 851b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_FROM_LSCP(trieIndex, c) \ 852b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_RAW(UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2), trieIndex, c) 853b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 854b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a BMP code point. Returns the data index. */ 855b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_FROM_BMP(trieIndex, c) \ 856b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_RAW(U_IS_LEAD(c) ? UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2) : 0, \ 857b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru trieIndex, c) 858b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 859b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a supplementary code point below highStart. Returns the data index. */ 860b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_FROM_SUPP(trieIndex, c) \ 861b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (((int32_t)((trieIndex)[ \ 862b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trieIndex)[(UTRIE2_INDEX_1_OFFSET-UTRIE2_OMITTED_BMP_INDEX_1_LENGTH)+ \ 863b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ((c)>>UTRIE2_SHIFT_1)]+ \ 864b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (((c)>>UTRIE2_SHIFT_2)&UTRIE2_INDEX_2_MASK)]) \ 865b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru <<UTRIE2_INDEX_SHIFT)+ \ 866b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ((c)&UTRIE2_DATA_MASK)) 867b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 868b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 869b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Internal trie getter from a code point, with checking that c is in 0..10FFFF. 870b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Returns the data index. 871b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 872b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_INDEX_FROM_CP(trie, asciiOffset, c) \ 873b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ((uint32_t)(c)<0xd800 ? \ 874b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_RAW(0, (trie)->index, c) : \ 875b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (uint32_t)(c)<=0xffff ? \ 876b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_RAW( \ 877b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)<=0xdbff ? UTRIE2_LSCP_INDEX_2_OFFSET-(0xd800>>UTRIE2_SHIFT_2) : 0, \ 878b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->index, c) : \ 879b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (uint32_t)(c)>0x10ffff ? \ 880b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (asciiOffset)+UTRIE2_BAD_UTF8_DATA_OFFSET : \ 881b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)>=(trie)->highStart ? \ 882b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->highValueIndex : \ 883b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_FROM_SUPP((trie)->index, c)) 884b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 885b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a UTF-16 single/lead code unit. Returns the data. */ 886b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_GET_FROM_U16_SINGLE_LEAD(trie, data, c) \ 887b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->data[_UTRIE2_INDEX_FROM_U16_SINGLE_LEAD((trie)->index, c)] 888b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 889b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal trie getter from a supplementary code point. Returns the data. */ 890b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_GET_FROM_SUPP(trie, data, c) \ 891b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->data[(c)>=(trie)->highStart ? (trie)->highValueIndex : \ 892b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru _UTRIE2_INDEX_FROM_SUPP((trie)->index, c)] 893b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 894b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 895b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Internal trie getter from a code point, with checking that c is in 0..10FFFF. 896b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Returns the data. 897b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 898b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_GET(trie, data, asciiOffset, c) \ 899b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->data[_UTRIE2_INDEX_FROM_CP(trie, asciiOffset, c)] 900b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 901b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal next-post-increment: get the next code point (c) and its data. */ 902b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_U16_NEXT(trie, data, src, limit, c, result) { \ 903b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru { \ 904b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint16_t __c2; \ 905b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)=*(src)++; \ 906b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru if(!U16_IS_LEAD(c)) { \ 907b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=_UTRIE2_GET_FROM_U16_SINGLE_LEAD(trie, data, c); \ 908b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else if((src)==(limit) || !U16_IS_TRAIL(__c2=*(src))) { \ 909b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[_UTRIE2_INDEX_FROM_LSCP((trie)->index, c)]; \ 910b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else { \ 911b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ++(src); \ 912b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)=U16_GET_SUPPLEMENTARY((c), __c2); \ 913b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=_UTRIE2_GET_FROM_SUPP((trie), data, (c)); \ 914b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 915b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 916b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru} 917b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 918b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal pre-decrement-previous: get the previous code point (c) and its data */ 919b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_U16_PREV(trie, data, start, src, c, result) { \ 920b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru { \ 921b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint16_t __c2; \ 922b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)=*--(src); \ 923b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru if(!U16_IS_TRAIL(c) || (src)==(start) || !U16_IS_LEAD(__c2=*((src)-1))) { \ 924b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[_UTRIE2_INDEX_FROM_BMP((trie)->index, c)]; \ 925b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else { \ 926b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru --(src); \ 927b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \ 928b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=_UTRIE2_GET_FROM_SUPP((trie), data, (c)); \ 929b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 930b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 931b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru} 932b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 933b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal UTF-8 next-post-increment: get the next code point's data. */ 934b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_U8_NEXT(trie, ascii, data, src, limit, result) { \ 935b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint8_t __lead=(uint8_t)*(src)++; \ 936b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru if(__lead<0xc0) { \ 937b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->ascii[__lead]; \ 938b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else { \ 939b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint8_t __t1, __t2; \ 940b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru if( /* handle U+0000..U+07FF inline */ \ 941b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru __lead<0xe0 && (src)<(limit) && \ 942b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (__t1=(uint8_t)(*(src)-0x80))<=0x3f \ 943b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ) { \ 944b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ++(src); \ 945b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[ \ 946b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (trie)->index[(UTRIE2_UTF8_2B_INDEX_2_OFFSET-0xc0)+__lead]+ \ 947b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru __t1]; \ 948b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else if( /* handle U+0000..U+CFFF inline */ \ 949b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru __lead<0xed && ((src)+1)<(limit) && \ 950b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (__t1=(uint8_t)(*(src)-0x80))<=0x3f && (__lead>0xe0 || __t1>=0x20) && \ 951b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (__t2=(uint8_t)(*((src)+1)-0x80))<= 0x3f \ 952b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ) { \ 953b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (src)+=2; \ 954b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[ \ 955b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru ((int32_t)((trie)->index[((__lead-0xe0)<<(12-UTRIE2_SHIFT_2))+ \ 956b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (__t1<<(6-UTRIE2_SHIFT_2))+(__t2>>UTRIE2_SHIFT_2)]) \ 957b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru <<UTRIE2_INDEX_SHIFT)+ \ 958b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (__t2&UTRIE2_DATA_MASK)]; \ 959b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else { \ 960b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int32_t __index=utrie2_internalU8NextIndex((trie), __lead, (const uint8_t *)(src), \ 961b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (const uint8_t *)(limit)); \ 962b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (src)+=__index&7; \ 963b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[__index>>3]; \ 964b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 965b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 966b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru} 967b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 968b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** Internal UTF-8 pre-decrement-previous: get the previous code point's data. */ 969b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#define _UTRIE2_U8_PREV(trie, ascii, data, start, src, result) { \ 970b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru uint8_t __b=(uint8_t)*--(src); \ 971b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru if(__b<0x80) { \ 972b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->ascii[__b]; \ 973b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } else { \ 974b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru int32_t __index=utrie2_internalU8PrevIndex((trie), __b, (const uint8_t *)(start), \ 975b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (const uint8_t *)(src)); \ 976b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (src)-=__index&7; \ 977b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru (result)=(trie)->data[__index>>3]; \ 978b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru } \ 979b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru} 980b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 981b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste QueruU_CDECL_END 982b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 983b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru/** 984b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru * Work around MSVC 2003 optimization bugs. 985b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru */ 986b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#if defined (U_HAVE_MSVC_2003_OR_EARLIER) 987b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#pragma optimize("", off) 988b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#endif 989b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru 990b0ac937921a2c196d8b9da665135bf6ba01a1ccfJean-Baptiste Queru#endif 991