84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
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/*
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********************************************************************
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* COPYRIGHT:
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* (C) Copyright Taligent, Inc., 1996
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* (C) Copyright International Business Machines Corporation, 1996 - 1998
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* Licensed Material - Program-Property of IBM - All Rights Reserved.
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* US Government Users Restricted Rights - Use, duplication, or disclosure
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* restricted by GSA ADP Schedule Contract with IBM Corp.
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*
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********************************************************************
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*/
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#ifndef UCMP8_H
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#define UCMP8_H
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#include "utypes.h"
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/*====================================*/
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/* class CompactByteArray
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* Provides a compact way to store information that is indexed by Unicode values,
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* such as character properties, types, keyboard values, etc.
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* The ATypes are used by value, so should be small, integers or pointers.
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*====================================
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*/
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U_CAPI int32_t U_EXPORT2 ucmp8_getkUnicodeCount(void);
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U_CAPI int32_t U_EXPORT2 ucmp8_getkBlockCount(void);
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typedef struct CompactByteArray {
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int8_t* fArray;
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uint16_t* fIndex;
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int32_t fCount;
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bool_t fCompact;
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bool_t fBogus;
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} CompactByteArray;
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U_CAPI CompactByteArray* U_EXPORT2 ucmp8_open(int8_t defaultValue);
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U_CAPI CompactByteArray* U_EXPORT2 ucmp8_openAdopt(uint16_t* indexArray,
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int8_t* newValues,
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int32_t count);
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U_CAPI void U_EXPORT2 ucmp8_close(CompactByteArray* array);
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U_CAPI bool_t U_EXPORT2 isBogus(const CompactByteArray* array);
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U_CAPI int8_t U_EXPORT2 ucmp8_get(CompactByteArray* array, uint16_t index);
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U_CAPI uint8_t U_EXPORT2 ucmp8_getu(CompactByteArray* array, uint16_t index);
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U_CAPI void U_EXPORT2 ucmp8_set(CompactByteArray* array,
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UChar index,
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int8_t value);
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U_CAPI void U_EXPORT2 ucmp8_setRange(CompactByteArray* array,
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UChar start,
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UChar end,
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int8_t value);
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U_CAPI int32_t U_EXPORT2 ucmp8_getCount(const CompactByteArray* array);
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U_CAPI const int8_t* U_EXPORT2 ucmp8_getArray(const CompactByteArray* array);
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U_CAPI const uint16_t* U_EXPORT2 ucmp8_getIndex(const CompactByteArray* array);
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/* Compact the array.
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The value of cycle determines how large the overlap can be.
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A cycle of 1 is the most compacted, but takes the most time to do.
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If values stored in the array tend to repeat in cycles of, say, 16,
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then using that will be faster than cycle = 1, and get almost the
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same compression.
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*/
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U_CAPI void U_EXPORT2 ucmp8_compact(CompactByteArray* array,
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uint32_t cycle);
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/* Expanded takes the array back to a 65536 element array*/
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U_CAPI void U_EXPORT2 ucmp8_expand(CompactByteArray* array);
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#endif
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