b64df2bf74
HarfBuzz: Update to version 7.3.0 ICU4C: Update to version 73.1 FreeType: Update to version 2.13.0
574 lines
24 KiB
C++
574 lines
24 KiB
C++
// © 2016 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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/*
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******************************************************************************
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* Copyright (C) 1999-2016, International Business Machines
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* Corporation and others. All Rights Reserved.
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******************************************************************************
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* file name: uresdata.h
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* encoding: UTF-8
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* tab size: 8 (not used)
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* indentation:4
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*
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* created on: 1999dec08
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* created by: Markus W. Scherer
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* 06/24/02 weiv Added support for resource sharing
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*/
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#ifndef __RESDATA_H__
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#define __RESDATA_H__
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#include "unicode/utypes.h"
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#include "unicode/udata.h"
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#include "unicode/ures.h"
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#include "putilimp.h"
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#include "udataswp.h"
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/**
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* Numeric constants for internal-only types of resource items.
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* These must use different numeric values than UResType constants
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* because they are used together.
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* Internal types are never returned by ures_getType().
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*/
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typedef enum {
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/** Include a negative value so that the compiler uses the same int type as for UResType. */
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URES_INTERNAL_NONE=-1,
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/** Resource type constant for tables with 32-bit count, key offsets and values. */
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URES_TABLE32=4,
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/**
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* Resource type constant for tables with 16-bit count, key offsets and values.
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* All values are URES_STRING_V2 strings.
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*/
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URES_TABLE16=5,
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/** Resource type constant for 16-bit Unicode strings in formatVersion 2. */
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URES_STRING_V2=6,
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/**
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* Resource type constant for arrays with 16-bit count and values.
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* All values are URES_STRING_V2 strings.
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*/
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URES_ARRAY16=9
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/* Resource type 15 is not defined but effectively used by RES_BOGUS=0xffffffff. */
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} UResInternalType;
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/*
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* A Resource is a 32-bit value that has 2 bit fields:
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* 31..28 4-bit type, see enum below
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* 27..0 28-bit four-byte-offset or value according to the type
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*/
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typedef uint32_t Resource;
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#define RES_BOGUS 0xffffffff
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#define RES_MAX_OFFSET 0x0fffffff
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#define RES_GET_TYPE(res) ((int32_t)((res)>>28UL))
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#define RES_GET_OFFSET(res) ((res)&0x0fffffff)
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#define RES_GET_POINTER(pRoot, res) ((pRoot)+RES_GET_OFFSET(res))
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/* get signed and unsigned integer values directly from the Resource handle
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* NOTE: For proper logging, please use the res_getInt() constexpr
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*/
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#if U_SIGNED_RIGHT_SHIFT_IS_ARITHMETIC
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# define RES_GET_INT_NO_TRACE(res) (((int32_t)((res)<<4L))>>4L)
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#else
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# define RES_GET_INT_NO_TRACE(res) (int32_t)(((res)&0x08000000) ? (res)|0xf0000000 : (res)&0x07ffffff)
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#endif
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#define RES_GET_UINT_NO_TRACE(res) ((res)&0x0fffffff)
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#define URES_IS_ARRAY(type) ((int32_t)(type)==URES_ARRAY || (int32_t)(type)==URES_ARRAY16)
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#define URES_IS_TABLE(type) ((int32_t)(type)==URES_TABLE || (int32_t)(type)==URES_TABLE16 || (int32_t)(type)==URES_TABLE32)
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#define URES_IS_CONTAINER(type) (URES_IS_TABLE(type) || URES_IS_ARRAY(type))
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#define URES_MAKE_RESOURCE(type, offset) (((Resource)(type)<<28)|(Resource)(offset))
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#define URES_MAKE_EMPTY_RESOURCE(type) ((Resource)(type)<<28)
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/* indexes[] value names; indexes are generally 32-bit (Resource) indexes */
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enum {
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/**
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* [0] contains the length of indexes[]
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* which is at most URES_INDEX_TOP of the latest format version
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*
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* formatVersion==1: all bits contain the length of indexes[]
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* but the length is much less than 0xff;
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* formatVersion>1:
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* only bits 7..0 contain the length of indexes[],
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* bits 31..8 are reserved and set to 0
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* formatVersion>=3:
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* bits 31..8 poolStringIndexLimit bits 23..0
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*/
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URES_INDEX_LENGTH,
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/**
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* [1] contains the top of the key strings,
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* same as the bottom of resources or UTF-16 strings, rounded up
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*/
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URES_INDEX_KEYS_TOP,
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/** [2] contains the top of all resources */
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URES_INDEX_RESOURCES_TOP,
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/**
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* [3] contains the top of the bundle,
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* in case it were ever different from [2]
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*/
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URES_INDEX_BUNDLE_TOP,
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/** [4] max. length of any table */
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URES_INDEX_MAX_TABLE_LENGTH,
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/**
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* [5] attributes bit set, see URES_ATT_* (new in formatVersion 1.2)
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*
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* formatVersion>=3:
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* bits 31..16 poolStringIndex16Limit
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* bits 15..12 poolStringIndexLimit bits 27..24
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*/
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URES_INDEX_ATTRIBUTES,
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/**
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* [6] top of the 16-bit units (UTF-16 string v2 UChars, URES_TABLE16, URES_ARRAY16),
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* rounded up (new in formatVersion 2.0, ICU 4.4)
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*/
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URES_INDEX_16BIT_TOP,
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/** [7] checksum of the pool bundle (new in formatVersion 2.0, ICU 4.4) */
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URES_INDEX_POOL_CHECKSUM,
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URES_INDEX_TOP
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};
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/*
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* Nofallback attribute, attribute bit 0 in indexes[URES_INDEX_ATTRIBUTES].
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* New in formatVersion 1.2 (ICU 3.6).
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*
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* If set, then this resource bundle is a standalone bundle.
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* If not set, then the bundle participates in locale fallback, eventually
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* all the way to the root bundle.
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* If indexes[] is missing or too short, then the attribute cannot be determined
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* reliably. Dependency checking should ignore such bundles, and loading should
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* use fallbacks.
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*/
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#define URES_ATT_NO_FALLBACK 1
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/*
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* Attributes for bundles that are, or use, a pool bundle.
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* A pool bundle provides key strings that are shared among several other bundles
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* to reduce their total size.
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* New in formatVersion 2 (ICU 4.4).
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*/
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#define URES_ATT_IS_POOL_BUNDLE 2
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#define URES_ATT_USES_POOL_BUNDLE 4
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/*
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* File format for .res resource bundle files
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*
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* ICU 56: New in formatVersion 3 compared with 2: -------------
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*
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* Resource bundles can optionally use shared string-v2 values
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* stored in the pool bundle.
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* If so, then the indexes[] contain two new values
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* in previously-unused bits of existing indexes[] slots:
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* - poolStringIndexLimit:
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* String-v2 offsets (in 32-bit Resource words) below this limit
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* point to pool bundle string-v2 values.
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* - poolStringIndex16Limit:
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* Resource16 string-v2 offsets below this limit
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* point to pool bundle string-v2 values.
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* Guarantee: poolStringIndex16Limit <= poolStringIndexLimit
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*
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* The local bundle's poolStringIndexLimit is greater than
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* any pool bundle string index used in the local bundle.
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* The poolStringIndexLimit should not be greater than
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* the maximum possible pool bundle string index.
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*
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* The maximum possible pool bundle string index is the index to the last non-NUL
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* pool string character, due to suffix sharing.
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*
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* In the pool bundle, there is no structure that lists the strings.
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* (The root resource is an empty Table.)
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* If the strings need to be enumerated (as genrb --usePoolBundle does),
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* then iterate through the pool bundle's 16-bit-units array from the beginning.
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* Stop at the end of the array, or when an explicit or implicit string length
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* would lead beyond the end of the array,
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* or when an apparent string is not NUL-terminated.
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* (Future genrb version might terminate the strings with
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* what looks like a large explicit string length.)
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*
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* ICU 4.4: New in formatVersion 2 compared with 1.3: -------------
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*
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* Three new resource types -- String-v2, Table16 and Array16 -- have their
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* values stored in a new array of 16-bit units between the table key strings
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* and the start of the other resources.
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*
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* genrb eliminates duplicates among Unicode string-v2 values.
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* Multiple Unicode strings may use the same offset and string data,
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* or a short string may point to the suffix of a longer string. ("Suffix sharing")
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* For example, one string "abc" may be reused for another string "bc" by pointing
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* to the second character. (Short strings-v2 are NUL-terminated
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* and not preceded by an explicit length value.)
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*
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* It is allowed for all resource types to share values.
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* The swapper code (ures_swap()) has been modified so that it swaps each item
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* exactly once.
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*
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* A resource bundle may use a special pool bundle. Some or all of the table key strings
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* of the using-bundle are omitted, and the key string offsets for such key strings refer
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* to offsets in the pool bundle.
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* The using-bundle's and the pool-bundle's indexes[URES_INDEX_POOL_CHECKSUM] values
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* must match.
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* Two bits in indexes[URES_INDEX_ATTRIBUTES] indicate whether a resource bundle
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* is or uses a pool bundle.
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*
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* Table key strings must be compared in ASCII order, even if they are not
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* stored in ASCII.
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*
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* New in formatVersion 1.3 compared with 1.2: -------------
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*
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* genrb eliminates duplicates among key strings.
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* Multiple table items may share one key string, or one item may point
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* to the suffix of another's key string. ("Suffix sharing")
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* For example, one key "abc" may be reused for another key "bc" by pointing
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* to the second character. (Key strings are NUL-terminated.)
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*
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* -------------
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*
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* An ICU4C resource bundle file (.res) is a binary, memory-mappable file
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* with nested, hierarchical data structures.
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* It physically contains the following:
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*
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* Resource root; -- 32-bit Resource item, root item for this bundle's tree;
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* currently, the root item must be a table or table32 resource item
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* int32_t indexes[indexes[0]]; -- array of indexes for friendly
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* reading and swapping; see URES_INDEX_* above
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* new in formatVersion 1.1 (ICU 2.8)
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* char keys[]; -- characters for key strings
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* (formatVersion 1.0: up to 65k of characters; 1.1: <2G)
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* (minus the space for root and indexes[]),
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* which consist of invariant characters (ASCII/EBCDIC) and are NUL-terminated;
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* padded to multiple of 4 bytes for 4-alignment of the following data
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* uint16_t 16BitUnits[]; -- resources that are stored entirely as sequences of 16-bit units
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* (new in formatVersion 2/ICU 4.4)
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* data is indexed by the offset values in 16-bit resource types,
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* with offset 0 pointing to the beginning of this array;
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* there is a 0 at offset 0, for empty resources;
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* padded to multiple of 4 bytes for 4-alignment of the following data
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* data; -- data directly and indirectly indexed by the root item;
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* the structure is determined by walking the tree
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*
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* Each resource bundle item has a 32-bit Resource handle (see typedef above)
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* which contains the item type number in its upper 4 bits (31..28) and either
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* an offset or a direct value in its lower 28 bits (27..0).
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* The order of items is undefined and only determined by walking the tree.
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* Leaves of the tree may be stored first or last or anywhere in between,
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* and it is in theory possible to have unreferenced holes in the file.
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*
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* 16-bit-unit values:
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* Starting with formatVersion 2/ICU 4.4, some resources are stored in a special
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* array of 16-bit units. Each resource value is a sequence of 16-bit units,
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* with no per-resource padding to a 4-byte boundary.
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* 16-bit container types (Table16 and Array16) contain Resource16 values
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* which are offsets to String-v2 resources in the same 16-bit-units array.
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*
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* Direct values:
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* - Empty Unicode strings have an offset value of 0 in the Resource handle itself.
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* - Starting with formatVersion 2/ICU 4.4, an offset value of 0 for
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* _any_ resource type indicates an empty value.
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* - Integer values are 28-bit values stored in the Resource handle itself;
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* the interpretation of unsigned vs. signed integers is up to the application.
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*
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* All other types and values use 28-bit offsets to point to the item's data.
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* The offset is an index to the first 32-bit word of the value, relative to the
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* start of the resource data (i.e., the root item handle is at offset 0).
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* To get byte offsets, the offset is multiplied by 4 (or shifted left by 2 bits).
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* All resource item values are 4-aligned.
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*
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* New in formatVersion 2/ICU 4.4: Some types use offsets into the 16-bit-units array,
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* indexing 16-bit units in that array.
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*
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* The structures (memory layouts) for the values for each item type are listed
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* in the table below.
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*
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* Nested, hierarchical structures: -------------
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*
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* Table items contain key-value pairs where the keys are offsets to char * key strings.
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* The values of these pairs are either Resource handles or
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* offsets into the 16-bit-units array, depending on the table type.
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*
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* Array items are simple vectors of Resource handles,
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* or of offsets into the 16-bit-units array, depending on the array type.
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*
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* Table key string offsets: -------
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*
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* Key string offsets are relative to the start of the resource data (of the root handle),
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* i.e., the first string has an offset of 4+sizeof(indexes).
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* (After the 4-byte root handle and after the indexes array.)
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*
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* If the resource bundle uses a pool bundle, then some key strings are stored
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* in the pool bundle rather than in the local bundle itself.
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* - In a Table or Table16, the 16-bit key string offset is local if it is
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* less than indexes[URES_INDEX_KEYS_TOP]<<2.
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* Otherwise, subtract indexes[URES_INDEX_KEYS_TOP]<<2 to get the offset into
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* the pool bundle key strings.
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* - In a Table32, the 32-bit key string offset is local if it is non-negative.
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* Otherwise, reset bit 31 to get the pool key string offset.
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*
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* Unlike the local offset, the pool key offset is relative to
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* the start of the key strings, not to the start of the bundle.
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*
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* An alias item is special (and new in ICU 2.4): --------------
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*
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* Its memory layout is just like for a UnicodeString, but at runtime it resolves to
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* another resource bundle's item according to the path in the string.
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* This is used to share items across bundles that are in different lookup/fallback
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* chains (e.g., large collation data among zh_TW and zh_HK).
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* This saves space (for large items) and maintenance effort (less duplication of data).
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*
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* --------------------------------------------------------------------------
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*
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* Resource types:
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*
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* Most resources have their values stored at four-byte offsets from the start
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* of the resource data. These values are at least 4-aligned.
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* Some resource values are stored directly in the offset field of the Resource itself.
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* See UResType in unicode/ures.h for enumeration constants for Resource types.
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*
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* Some resources have their values stored as sequences of 16-bit units,
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* at 2-byte offsets from the start of a contiguous 16-bit-unit array between
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* the table key strings and the other resources. (new in formatVersion 2/ICU 4.4)
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* At offset 0 of that array is a 16-bit zero value for empty 16-bit resources.
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*
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* Resource16 values in Table16 and Array16 are 16-bit offsets to String-v2
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* resources, with the offsets relative to the start of the 16-bit-units array.
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* Starting with formatVersion 3/ICU 56, if offset<poolStringIndex16Limit
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* then use the pool bundle's 16-bit-units array,
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* otherwise subtract that limit and use the local 16-bit-units array.
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*
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* Type Name Memory layout of values
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* (in parentheses: scalar, non-offset values)
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*
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* 0 Unicode String: int32_t length, UChar[length], (UChar)0, (padding)
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* or (empty string ("") if offset==0)
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* 1 Binary: int32_t length, uint8_t[length], (padding)
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* - the start of the bytes is 16-aligned -
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* 2 Table: uint16_t count, uint16_t keyStringOffsets[count], (uint16_t padding), Resource[count]
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* 3 Alias: (physically same value layout as string, new in ICU 2.4)
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* 4 Table32: int32_t count, int32_t keyStringOffsets[count], Resource[count]
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* (new in formatVersion 1.1/ICU 2.8)
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* 5 Table16: uint16_t count, uint16_t keyStringOffsets[count], Resource16[count]
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* (stored in the 16-bit-units array; new in formatVersion 2/ICU 4.4)
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* 6 Unicode String-v2:UChar[length], (UChar)0; length determined by the first UChar:
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* - if first is not a trail surrogate, then the length is implicit
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* and u_strlen() needs to be called
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* - if first<0xdfef then length=first&0x3ff (and skip first)
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* - if first<0xdfff then length=((first-0xdfef)<<16) | second UChar
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* - if first==0xdfff then length=((second UChar)<<16) | third UChar
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* (stored in the 16-bit-units array; new in formatVersion 2/ICU 4.4)
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*
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* Starting with formatVersion 3/ICU 56, if offset<poolStringIndexLimit
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* then use the pool bundle's 16-bit-units array,
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* otherwise subtract that limit and use the local 16-bit-units array.
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* (Note different limits for Resource16 vs. Resource.)
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*
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* 7 Integer: (28-bit offset is integer value)
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* 8 Array: int32_t count, Resource[count]
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* 9 Array16: uint16_t count, Resource16[count]
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* (stored in the 16-bit-units array; new in formatVersion 2/ICU 4.4)
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* 14 Integer Vector: int32_t length, int32_t[length]
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* 15 Reserved: This value denotes special purpose resources and is for internal use.
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*
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* Note that there are 3 types with data vector values:
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* - Vectors of 8-bit bytes stored as type Binary.
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* - Vectors of 16-bit words stored as type Unicode String or Unicode String-v2
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* (no value restrictions, all values 0..ffff allowed!).
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* - Vectors of 32-bit words stored as type Integer Vector.
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*/
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/*
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* Structure for a single, memory-mapped ResourceBundle.
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*/
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typedef struct ResourceData {
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UDataMemory *data;
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const int32_t *pRoot;
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const uint16_t *p16BitUnits;
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const char *poolBundleKeys;
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Resource rootRes;
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int32_t localKeyLimit;
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const uint16_t *poolBundleStrings;
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int32_t poolStringIndexLimit;
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int32_t poolStringIndex16Limit;
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UBool noFallback; /* see URES_ATT_NO_FALLBACK */
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UBool isPoolBundle;
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UBool usesPoolBundle;
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UBool useNativeStrcmp;
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} ResourceData;
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struct UResourceDataEntry; // forward declared for ResoureDataValue below; actually defined in uresimp.h
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/*
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* Read a resource bundle from memory.
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*/
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U_CAPI void U_EXPORT2
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res_read(ResourceData *pResData,
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const UDataInfo *pInfo, const void *inBytes, int32_t length,
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UErrorCode *errorCode);
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/*
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* Load a resource bundle file.
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* The ResourceData structure must be allocated externally.
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*/
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U_CFUNC void
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res_load(ResourceData *pResData,
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const char *path, const char *name, UErrorCode *errorCode);
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/*
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* Release a resource bundle file.
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* This does not release the ResourceData structure itself.
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*/
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U_CFUNC void
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res_unload(ResourceData *pResData);
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U_CAPI UResType U_EXPORT2
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res_getPublicType(Resource res);
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///////////////////////////////////////////////////////////////////////////
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// To enable tracing, use the inline versions of the res_get* functions. //
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///////////////////////////////////////////////////////////////////////////
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/*
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* Return a pointer to a zero-terminated, const UChar* string
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* and set its length in *pLength.
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* Returns NULL if not found.
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|
*/
|
|
U_CAPI const UChar * U_EXPORT2
|
|
res_getStringNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength);
|
|
|
|
U_CAPI const uint8_t * U_EXPORT2
|
|
res_getBinaryNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength);
|
|
|
|
U_CAPI const int32_t * U_EXPORT2
|
|
res_getIntVectorNoTrace(const ResourceData *pResData, Resource res, int32_t *pLength);
|
|
|
|
U_CAPI const UChar * U_EXPORT2
|
|
res_getAlias(const ResourceData *pResData, Resource res, int32_t *pLength);
|
|
|
|
U_CAPI Resource U_EXPORT2
|
|
res_getResource(const ResourceData *pResData, const char *key);
|
|
|
|
U_CAPI int32_t U_EXPORT2
|
|
res_countArrayItems(const ResourceData *pResData, Resource res);
|
|
|
|
U_CAPI Resource U_EXPORT2
|
|
res_getArrayItem(const ResourceData *pResData, Resource array, int32_t indexS);
|
|
|
|
U_CAPI Resource U_EXPORT2
|
|
res_getTableItemByIndex(const ResourceData *pResData, Resource table, int32_t indexS, const char ** key);
|
|
|
|
U_CAPI Resource U_EXPORT2
|
|
res_getTableItemByKey(const ResourceData *pResData, Resource table, int32_t *indexS, const char* * key);
|
|
|
|
/**
|
|
* Iterates over the path and stops when a scalar resource is found.
|
|
* Follows aliases.
|
|
* Modifies the contents of *path (replacing separators with NULs),
|
|
* and also moves *path forward while it finds items.
|
|
*
|
|
* @param path input: "CollationElements/Sequence" or "zoneStrings/3/2" etc.;
|
|
* output: points to the part that has not yet been processed
|
|
*/
|
|
U_CFUNC Resource res_findResource(const ResourceData *pResData, Resource r,
|
|
char** path, const char** key);
|
|
|
|
#ifdef __cplusplus
|
|
|
|
#include "resource.h"
|
|
#include "restrace.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
inline const char16_t* res_getString(const ResourceTracer& traceInfo,
|
|
const ResourceData *pResData, Resource res, int32_t *pLength) {
|
|
traceInfo.trace("string");
|
|
return res_getStringNoTrace(pResData, res, pLength);
|
|
}
|
|
|
|
inline const uint8_t* res_getBinary(const ResourceTracer& traceInfo,
|
|
const ResourceData *pResData, Resource res, int32_t *pLength) {
|
|
traceInfo.trace("binary");
|
|
return res_getBinaryNoTrace(pResData, res, pLength);
|
|
}
|
|
|
|
inline const int32_t* res_getIntVector(const ResourceTracer& traceInfo,
|
|
const ResourceData *pResData, Resource res, int32_t *pLength) {
|
|
traceInfo.trace("intvector");
|
|
return res_getIntVectorNoTrace(pResData, res, pLength);
|
|
}
|
|
|
|
inline int32_t res_getInt(const ResourceTracer& traceInfo, Resource res) {
|
|
traceInfo.trace("int");
|
|
return RES_GET_INT_NO_TRACE(res);
|
|
}
|
|
|
|
inline uint32_t res_getUInt(const ResourceTracer& traceInfo, Resource res) {
|
|
traceInfo.trace("uint");
|
|
return RES_GET_UINT_NO_TRACE(res);
|
|
}
|
|
|
|
class ResourceDataValue : public ResourceValue {
|
|
public:
|
|
ResourceDataValue() :
|
|
pResData(nullptr),
|
|
validLocaleDataEntry(nullptr),
|
|
res(static_cast<Resource>(URES_NONE)),
|
|
fTraceInfo() {}
|
|
virtual ~ResourceDataValue();
|
|
|
|
void setData(const ResourceData &data) {
|
|
pResData = &data;
|
|
}
|
|
|
|
void setValidLocaleDataEntry(UResourceDataEntry *entry) {
|
|
validLocaleDataEntry = entry;
|
|
}
|
|
|
|
void setResource(Resource r, ResourceTracer&& traceInfo) {
|
|
res = r;
|
|
fTraceInfo = traceInfo;
|
|
}
|
|
|
|
const ResourceData &getData() const { return *pResData; }
|
|
UResourceDataEntry *getValidLocaleDataEntry() const { return validLocaleDataEntry; }
|
|
Resource getResource() const { return res; }
|
|
virtual UResType getType() const override;
|
|
virtual const char16_t *getString(int32_t &length, UErrorCode &errorCode) const override;
|
|
virtual const char16_t *getAliasString(int32_t &length, UErrorCode &errorCode) const override;
|
|
virtual int32_t getInt(UErrorCode &errorCode) const override;
|
|
virtual uint32_t getUInt(UErrorCode &errorCode) const override;
|
|
virtual const int32_t *getIntVector(int32_t &length, UErrorCode &errorCode) const override;
|
|
virtual const uint8_t *getBinary(int32_t &length, UErrorCode &errorCode) const override;
|
|
virtual ResourceArray getArray(UErrorCode &errorCode) const override;
|
|
virtual ResourceTable getTable(UErrorCode &errorCode) const override;
|
|
virtual UBool isNoInheritanceMarker() const override;
|
|
virtual int32_t getStringArray(UnicodeString *dest, int32_t capacity,
|
|
UErrorCode &errorCode) const override;
|
|
virtual int32_t getStringArrayOrStringAsArray(UnicodeString *dest, int32_t capacity,
|
|
UErrorCode &errorCode) const override;
|
|
virtual UnicodeString getStringOrFirstOfArray(UErrorCode &errorCode) const override;
|
|
|
|
private:
|
|
const ResourceData *pResData;
|
|
UResourceDataEntry *validLocaleDataEntry;
|
|
Resource res;
|
|
ResourceTracer fTraceInfo;
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
/**
|
|
* Swap an ICU resource bundle. See udataswp.h.
|
|
* @internal
|
|
*/
|
|
U_CAPI int32_t U_EXPORT2
|
|
ures_swap(const UDataSwapper *ds,
|
|
const void *inData, int32_t length, void *outData,
|
|
UErrorCode *pErrorCode);
|
|
|
|
#endif
|