578 lines
21 KiB
C
578 lines
21 KiB
C
/*
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File: UnicodeUtilities.h
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Contains: Types, constants, prototypes for Unicode Utilities (Unicode input and text utils)
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Version: QuickTime 7.3
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Copyright: (c) 2007 (c) 1997-2001 by Apple Computer, Inc., all rights reserved.
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Bugs?: For bug reports, consult the following page on
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the World Wide Web:
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http://developer.apple.com/bugreporter/
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*/
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#ifndef __UNICODEUTILITIES__
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#define __UNICODEUTILITIES__
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#ifndef __MACTYPES__
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#include <MacTypes.h>
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#endif
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#ifndef __MACLOCALES__
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#include <MacLocales.h>
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#endif
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#ifndef __TEXTCOMMON__
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#include <TextCommon.h>
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#endif
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#if PRAGMA_ONCE
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#pragma once
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if PRAGMA_IMPORT
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#pragma import on
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#endif
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#if PRAGMA_STRUCT_ALIGN
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#pragma options align=mac68k
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#elif PRAGMA_STRUCT_PACKPUSH
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#pragma pack(push, 2)
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#elif PRAGMA_STRUCT_PACK
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#pragma pack(2)
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#endif
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/*
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-------------------------------------------------------------------------------------------------
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CONSTANTS & DATA STRUCTURES for UCKeyTranslate & UCKeyboardLayout ('uchr' resource)
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-------------------------------------------------------------------------------------------------
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*/
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/*
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-------------------------------------------------------------------------------------------------
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UCKeyOutput & related stuff
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The interpretation of UCKeyOutput depends on bits 15-14.
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If they are 01, then bits 0-13 are an index in UCKeyStateRecordsIndex (resource-wide list).
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If they are 10, then bits 0-13 are an index in UCKeySequenceDataIndex (resource-wide list),
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or if UCKeySequenceDataIndex is not present or the index is beyond the end of the list,
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then bits 0-15 are a single Unicode character.
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Otherwise, bits 0-15 are a single Unicode character; a value of 0xFFFE-0xFFFF means no character
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output.
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UCKeyCharSeq is similar, but does not support indices in UCKeyStateRecordsIndex. For bits 15-14:
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If they are 10, then bits 0-13 are an index in UCKeySequenceDataIndex (resource-wide list),
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or if UCKeySequenceDataIndex is not present or the index is beyond the end of the list,
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then bits 0-15 are a single Unicode character.
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Otherwise, bits 0-15 are a single Unicode character; a value of 0xFFFE-0xFFFF means no character
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output.
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-------------------------------------------------------------------------------------------------
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*/
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typedef UInt16 UCKeyOutput;
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typedef UInt16 UCKeyCharSeq;
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enum {
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kUCKeyOutputStateIndexMask = 0x4000,
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kUCKeyOutputSequenceIndexMask = 0x8000,
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kUCKeyOutputTestForIndexMask = 0xC000, /* test bits 14-15*/
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kUCKeyOutputGetIndexMask = 0x3FFF /* get bits 0-13*/
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};
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/*
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-------------------------------------------------------------------------------------------------
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UCKeyStateRecord & related stuff
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The UCKeyStateRecord information is used as follows. If the current state is zero,
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output stateZeroCharData and set the state to stateZeroNextState. If the current state
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is non-zero and there is an entry for it in stateEntryData, then output the corresponding
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charData and set the state to nextState. Otherwise, output the state terminator from
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UCKeyStateTerminators for the current state (or nothing if there is no UCKeyStateTerminators
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table or it has no entry for the current state), then output stateZeroCharData and set the
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state to stateZeroNextState.
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-------------------------------------------------------------------------------------------------
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*/
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struct UCKeyStateRecord {
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UCKeyCharSeq stateZeroCharData;
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UInt16 stateZeroNextState;
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UInt16 stateEntryCount;
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UInt16 stateEntryFormat;
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/* This is followed by an array of stateEntryCount elements*/
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/* in the specified format. Here we just show a dummy array.*/
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UInt32 stateEntryData[1];
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};
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typedef struct UCKeyStateRecord UCKeyStateRecord;
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/*
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Here are the codes for entry formats currently defined.
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Each entry maps from curState to charData and nextState.
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*/
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enum {
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kUCKeyStateEntryTerminalFormat = 0x0001,
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kUCKeyStateEntryRangeFormat = 0x0002
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};
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/*
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For UCKeyStateEntryTerminal -
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nextState is always 0, so we don't have a field for it
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*/
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struct UCKeyStateEntryTerminal {
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UInt16 curState;
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UCKeyCharSeq charData;
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};
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typedef struct UCKeyStateEntryTerminal UCKeyStateEntryTerminal;
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/*
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For UCKeyStateEntryRange -
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If curState >= curStateStart and curState <= curStateStart+curStateRange,
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then it matches the entry, and we transform charData and nextState as follows:
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If charData < 0xFFFE, then charData += (curState-curStateStart)*deltaMultiplier
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If nextState != 0, then nextState += (curState-curStateStart)*deltaMultiplier
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*/
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struct UCKeyStateEntryRange {
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UInt16 curStateStart;
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UInt8 curStateRange;
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UInt8 deltaMultiplier;
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UCKeyCharSeq charData;
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UInt16 nextState;
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};
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typedef struct UCKeyStateEntryRange UCKeyStateEntryRange;
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/*
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-------------------------------------------------------------------------------------------------
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UCKeyboardLayout & related stuff
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The UCKeyboardLayout struct given here is only for the resource header. It specifies
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offsets to the various subtables which each have their own structs, given below.
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The keyboardTypeHeadList array selects table offsets that depend on keyboardType. The
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first entry in keyboardTypeHeadList is the default entry, which will be used if the
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keyboardType passed to UCKeyTranslate does not match any other entry - i.e. does not fall
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within the range keyboardTypeFirst..keyboardTypeLast for some entry. The first entry
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should have keyboardTypeFirst = keyboardTypeLast = 0.
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-------------------------------------------------------------------------------------------------
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*/
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struct UCKeyboardTypeHeader {
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UInt32 keyboardTypeFirst; /* first keyboardType in this entry*/
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UInt32 keyboardTypeLast; /* last keyboardType in this entry*/
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ByteOffset keyModifiersToTableNumOffset; /* required*/
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ByteOffset keyToCharTableIndexOffset; /* required*/
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ByteOffset keyStateRecordsIndexOffset; /* 0 => no table*/
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ByteOffset keyStateTerminatorsOffset; /* 0 => no table*/
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ByteOffset keySequenceDataIndexOffset; /* 0 => no table*/
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};
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typedef struct UCKeyboardTypeHeader UCKeyboardTypeHeader;
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struct UCKeyboardLayout {
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/* header only; other tables accessed via offsets*/
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UInt16 keyLayoutHeaderFormat; /* =kUCKeyLayoutHeaderFormat*/
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UInt16 keyLayoutDataVersion; /* 0x0100 = 1.0, 0x0110 = 1.1, etc.*/
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ByteOffset keyLayoutFeatureInfoOffset; /* may be 0 */
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ItemCount keyboardTypeCount; /* Dimension for keyboardTypeHeadList[] */
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UCKeyboardTypeHeader keyboardTypeList[1];
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};
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typedef struct UCKeyboardLayout UCKeyboardLayout;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeyLayoutFeatureInfo {
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UInt16 keyLayoutFeatureInfoFormat; /* =kUCKeyLayoutFeatureInfoFormat*/
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UInt16 reserved;
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UniCharCount maxOutputStringLength; /* longest possible output string*/
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};
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typedef struct UCKeyLayoutFeatureInfo UCKeyLayoutFeatureInfo;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeyModifiersToTableNum {
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UInt16 keyModifiersToTableNumFormat; /* =kUCKeyModifiersToTableNumFormat*/
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UInt16 defaultTableNum; /* For modifier combos not in tableNum[]*/
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ItemCount modifiersCount; /* Dimension for tableNum[]*/
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UInt8 tableNum[1];
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/* Then there is padding to a 4-byte boundary with bytes containing 0, if necessary.*/
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};
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typedef struct UCKeyModifiersToTableNum UCKeyModifiersToTableNum;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeyToCharTableIndex {
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UInt16 keyToCharTableIndexFormat; /* =kUCKeyToCharTableIndexFormat*/
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UInt16 keyToCharTableSize; /* Max keyCode (128 for ADB keyboards)*/
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ItemCount keyToCharTableCount; /* Dimension for keyToCharTableOffsets[] (usually 6 to 12 tables)*/
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ByteOffset keyToCharTableOffsets[1];
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/* Each offset in keyToCharTableOffsets is from the beginning of the resource to a*/
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/* table as follows:*/
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/* UCKeyOutput keyToCharData[keyToCharTableSize];*/
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/* These tables follow the UCKeyToCharTableIndex.*/
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/* Then there is padding to a 4-byte boundary with bytes containing 0, if necessary.*/
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};
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typedef struct UCKeyToCharTableIndex UCKeyToCharTableIndex;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeyStateRecordsIndex {
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UInt16 keyStateRecordsIndexFormat; /* =kUCKeyStateRecordsIndexFormat*/
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UInt16 keyStateRecordCount; /* Dimension for keyStateRecordOffsets[]*/
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ByteOffset keyStateRecordOffsets[1];
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/* Each offset in keyStateRecordOffsets is from the beginning of the resource to a*/
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/* UCKeyStateRecord. These UCKeyStateRecords follow the keyStateRecordOffsets[] array.*/
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/* Then there is padding to a 4-byte boundary with bytes containing 0, if necessary.*/
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};
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typedef struct UCKeyStateRecordsIndex UCKeyStateRecordsIndex;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeyStateTerminators {
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UInt16 keyStateTerminatorsFormat; /* =kUCKeyStateTerminatorsFormat*/
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UInt16 keyStateTerminatorCount; /* Dimension for keyStateTerminators[] (# of nonzero states)*/
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UCKeyCharSeq keyStateTerminators[1];
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/* Note: keyStateTerminators[0] is terminator for state 1, etc.*/
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/* Then there is padding to a 4-byte boundary with bytes containing 0, if necessary.*/
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};
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typedef struct UCKeyStateTerminators UCKeyStateTerminators;
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/* -------------------------------------------------------------------------------------------------*/
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struct UCKeySequenceDataIndex {
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UInt16 keySequenceDataIndexFormat; /* =kUCKeySequenceDataIndexFormat*/
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UInt16 charSequenceCount; /* Dimension of charSequenceOffsets[] is charSequenceCount+1*/
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UInt16 charSequenceOffsets[1];
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/* Each offset in charSequenceOffsets is in bytes, from the beginning of*/
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/* UCKeySequenceDataIndex to a sequence of UniChars; the next offset indicates the*/
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/* end of the sequence. The UniChar sequences follow the UCKeySequenceDataIndex.*/
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/* Then there is padding to a 4-byte boundary with bytes containing 0, if necessary.*/
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};
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typedef struct UCKeySequenceDataIndex UCKeySequenceDataIndex;
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/* -------------------------------------------------------------------------------------------------*/
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/* Current format codes for the various tables (bits 12-15 indicate which table)*/
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enum {
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kUCKeyLayoutHeaderFormat = 0x1002,
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kUCKeyLayoutFeatureInfoFormat = 0x2001,
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kUCKeyModifiersToTableNumFormat = 0x3001,
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kUCKeyToCharTableIndexFormat = 0x4001,
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kUCKeyStateRecordsIndexFormat = 0x5001,
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kUCKeyStateTerminatorsFormat = 0x6001,
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kUCKeySequenceDataIndexFormat = 0x7001
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};
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/*
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-------------------------------------------------------------------------------------------------
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Constants for keyAction parameter in UCKeyTranslate()
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-------------------------------------------------------------------------------------------------
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*/
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enum {
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kUCKeyActionDown = 0, /* key is going down*/
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kUCKeyActionUp = 1, /* key is going up*/
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kUCKeyActionAutoKey = 2, /* auto-key down*/
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kUCKeyActionDisplay = 3 /* get information for key display (as in Key Caps) */
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};
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/*
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-------------------------------------------------------------------------------------------------
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Bit assignments & masks for keyTranslateOptions parameter in UCKeyTranslate()
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-------------------------------------------------------------------------------------------------
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*/
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enum {
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kUCKeyTranslateNoDeadKeysBit = 0 /* Prevents setting any new dead-key states*/
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};
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enum {
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kUCKeyTranslateNoDeadKeysMask = 1L << kUCKeyTranslateNoDeadKeysBit
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};
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/*
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-------------------------------------------------------------------------------------------------
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CONSTANTS & DATA STRUCTURES for Unicode Collation
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-------------------------------------------------------------------------------------------------
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*/
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/* constant for LocaleOperationClass*/
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enum {
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kUnicodeCollationClass = FOUR_CHAR_CODE('ucol')
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};
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typedef struct OpaqueCollatorRef* CollatorRef;
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typedef UInt32 UCCollateOptions;
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enum {
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/* Sensitivity options*/
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kUCCollateComposeInsensitiveMask = 1L << 1,
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kUCCollateWidthInsensitiveMask = 1L << 2,
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kUCCollateCaseInsensitiveMask = 1L << 3,
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kUCCollateDiacritInsensitiveMask = 1L << 4, /* Other general options */
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kUCCollatePunctuationSignificantMask = 1L << 15, /* Number-handling options */
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kUCCollateDigitsOverrideMask = 1L << 16,
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kUCCollateDigitsAsNumberMask = 1L << 17
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};
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enum {
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kUCCollateStandardOptions = kUCCollateComposeInsensitiveMask | kUCCollateWidthInsensitiveMask
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};
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/*
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Special values to specify various invariant orders for UCCompareTextNoLocale.
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These values use the high 8 bits of UCCollateOptions.
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*/
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enum {
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kUCCollateTypeHFSExtended = 1
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};
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/* These constants are used for masking and shifting the invariant order type.*/
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enum {
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kUCCollateTypeSourceMask = 0x000000FF,
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kUCCollateTypeShiftBits = 24
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};
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enum {
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kUCCollateTypeMask = kUCCollateTypeSourceMask << kUCCollateTypeShiftBits
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};
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typedef UInt32 UCCollationValue;
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/*
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-------------------------------------------------------------------------------------------------
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CONSTANTS & DATA STRUCTURES for Unicode TextBreak
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-------------------------------------------------------------------------------------------------
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*/
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/* constant for LocaleOperationClass*/
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enum {
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kUnicodeTextBreakClass = FOUR_CHAR_CODE('ubrk')
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};
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typedef struct OpaqueTextBreakLocatorRef* TextBreakLocatorRef;
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typedef UInt32 UCTextBreakType;
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enum {
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kUCTextBreakCharMask = 1L << 0,
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kUCTextBreakClusterMask = 1L << 2,
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kUCTextBreakWordMask = 1L << 4,
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kUCTextBreakLineMask = 1L << 6
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};
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typedef UInt32 UCTextBreakOptions;
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enum {
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kUCTextBreakLeadingEdgeMask = 1L << 0,
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kUCTextBreakGoBackwardsMask = 1L << 1,
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kUCTextBreakIterateMask = 1L << 2
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};
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/*
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-------------------------------------------------------------------------------------------------
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FUNCTION PROTOTYPES
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-------------------------------------------------------------------------------------------------
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*/
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/*
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* UCKeyTranslate()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesCoreLib 8.5 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API( OSStatus )
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UCKeyTranslate(
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const UCKeyboardLayout * keyLayoutPtr,
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UInt16 virtualKeyCode,
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UInt16 keyAction,
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UInt32 modifierKeyState,
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UInt32 keyboardType,
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OptionBits keyTranslateOptions,
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UInt32 * deadKeyState,
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UniCharCount maxStringLength,
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UniCharCount * actualStringLength,
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UniChar unicodeString[]);
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/* Standard collation functions*/
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/*
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* UCCreateCollator()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCreateCollator(
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LocaleRef locale,
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LocaleOperationVariant opVariant,
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UCCollateOptions options,
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CollatorRef * collatorRef);
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/*
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* UCGetCollationKey()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCGetCollationKey(
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CollatorRef collatorRef,
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const UniChar * textPtr,
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UniCharCount textLength,
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ItemCount maxKeySize,
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ItemCount * actualKeySize,
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UCCollationValue collationKey[]);
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/*
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* UCCompareCollationKeys()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesCoreLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCompareCollationKeys(
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const UCCollationValue * key1Ptr,
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ItemCount key1Length,
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const UCCollationValue * key2Ptr,
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ItemCount key2Length,
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Boolean * equivalent,
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SInt32 * order);
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/*
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* UCCompareText()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCompareText(
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CollatorRef collatorRef,
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const UniChar * text1Ptr,
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UniCharCount text1Length,
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const UniChar * text2Ptr,
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UniCharCount text2Length,
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Boolean * equivalent,
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SInt32 * order);
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/*
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* UCDisposeCollator()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCDisposeCollator(CollatorRef * collatorRef);
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/* Simple collation using default locale*/
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/*
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* UCCompareTextDefault()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCompareTextDefault(
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UCCollateOptions options,
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const UniChar * text1Ptr,
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UniCharCount text1Length,
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const UniChar * text2Ptr,
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UniCharCount text2Length,
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Boolean * equivalent,
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SInt32 * order);
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/* Simple locale-independent collation*/
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/*
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* UCCompareTextNoLocale()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesCoreLib 8.6 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCompareTextNoLocale(
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UCCollateOptions options,
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const UniChar * text1Ptr,
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UniCharCount text1Length,
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const UniChar * text2Ptr,
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UniCharCount text2Length,
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Boolean * equivalent,
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SInt32 * order);
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/* Standard text break (text boundary) functions*/
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/*
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* UCCreateTextBreakLocator()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 9.0 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCCreateTextBreakLocator(
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LocaleRef locale,
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LocaleOperationVariant opVariant,
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UCTextBreakType breakTypes,
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TextBreakLocatorRef * breakRef);
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/*
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* UCFindTextBreak()
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*
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* Availability:
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* Non-Carbon CFM: in UnicodeUtilitiesLib 9.0 and later
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* CarbonLib: in CarbonLib 1.0 and later
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* Mac OS X: in version 10.0 and later
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*/
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EXTERN_API_C( OSStatus )
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UCFindTextBreak(
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TextBreakLocatorRef breakRef,
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UCTextBreakType breakType,
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UCTextBreakOptions options,
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const UniChar * textPtr,
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UniCharCount textLength,
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UniCharArrayOffset startOffset,
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UniCharArrayOffset * breakOffset);
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/*
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* UCDisposeTextBreakLocator()
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*
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|
* Availability:
|
|
* Non-Carbon CFM: in UnicodeUtilitiesLib 9.0 and later
|
|
* CarbonLib: in CarbonLib 1.0 and later
|
|
* Mac OS X: in version 10.0 and later
|
|
*/
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EXTERN_API_C( OSStatus )
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|
UCDisposeTextBreakLocator(TextBreakLocatorRef * breakRef);
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#if PRAGMA_STRUCT_ALIGN
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|
#pragma options align=reset
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|
#elif PRAGMA_STRUCT_PACKPUSH
|
|
#pragma pack(pop)
|
|
#elif PRAGMA_STRUCT_PACK
|
|
#pragma pack()
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#endif
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|
|
|
#ifdef PRAGMA_IMPORT_OFF
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|
#pragma import off
|
|
#elif PRAGMA_IMPORT
|
|
#pragma import reset
|
|
#endif
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|
|
|
#ifdef __cplusplus
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}
|
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#endif
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#endif /* __UNICODEUTILITIES__ */
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|