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Diffstat (limited to 'Build/source/libs/icu/icu-xetex/tools/toolutil/propsvec.h')
-rw-r--r-- | Build/source/libs/icu/icu-xetex/tools/toolutil/propsvec.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/tools/toolutil/propsvec.h b/Build/source/libs/icu/icu-xetex/tools/toolutil/propsvec.h new file mode 100644 index 00000000000..c899d5885e4 --- /dev/null +++ b/Build/source/libs/icu/icu-xetex/tools/toolutil/propsvec.h @@ -0,0 +1,103 @@ +/* +******************************************************************************* +* +* Copyright (C) 2002-2005, International Business Machines +* Corporation and others. All Rights Reserved. +* +******************************************************************************* +* file name: propsvec.h +* encoding: US-ASCII +* tab size: 8 (not used) +* indentation:4 +* +* created on: 2002feb22 +* created by: Markus W. Scherer +* +* Store additional Unicode character properties in bit set vectors. +*/ + +#ifndef __UPROPSVEC_H__ +#define __UPROPSVEC_H__ + +#include "unicode/utypes.h" +#include "utrie.h" + +/* + * Unicode Properties Vectors associated with code point ranges. + * Stored in an array of uint32_t. + * + * The array starts with a header, then rows of integers store + * the range limits and the properties vectors. + * + * In each row, row[0] contains the start code point and + * row[1] contains the limit code point, + * which is the start of the next range. + * + * Initially, there is only one range [0..0x110000[ with values 0. + * + * It would be possible to store only one range boundary per row, + * but self-contained rows allow to later sort them by contents. + */ +enum { + /* stores number of columns, plus two for start & limit values */ + UPVEC_COLUMNS, + UPVEC_MAXROWS, + UPVEC_ROWS, + /* search optimization: remember last row seen */ + UPVEC_PREV_ROW, + UPVEC_HEADER_LENGTH +}; + +U_CAPI uint32_t * U_EXPORT2 +upvec_open(int32_t columns, int32_t maxRows); + +U_CAPI void U_EXPORT2 +upvec_close(uint32_t *pv); + +U_CAPI UBool U_EXPORT2 +upvec_setValue(uint32_t *pv, + UChar32 start, UChar32 limit, + int32_t column, + uint32_t value, uint32_t mask, + UErrorCode *pErrorCode); + +U_CAPI uint32_t U_EXPORT2 +upvec_getValue(uint32_t *pv, UChar32 c, int32_t column); + +/* + * pRangeStart and pRangeLimit can be NULL. + * @return NULL if rowIndex out of range and for illegal arguments + */ +U_CAPI uint32_t * U_EXPORT2 +upvec_getRow(uint32_t *pv, int32_t rowIndex, + UChar32 *pRangeStart, UChar32 *pRangeLimit); + +/* + * Compact the vectors: + * - modify the memory + * - keep only unique vectors + * - store them contiguously from the beginning of the memory + * - for each (non-unique) row, call the handler function + * + * The handler's rowIndex is the uint32_t index of the row in the compacted + * memory block. + * (Therefore, it starts at 0 increases in increments of the columns value.) + */ + +typedef void U_CALLCONV +UPVecCompactHandler(void *context, + UChar32 start, UChar32 limit, + int32_t rowIndex, uint32_t *row, int32_t columns, + UErrorCode *pErrorCode); + +U_CAPI int32_t U_EXPORT2 +upvec_compact(uint32_t *pv, UPVecCompactHandler *handler, void *context, UErrorCode *pErrorCode); + +/* context=UNewTrie, stores the rowIndex values into the trie */ +U_CAPI void U_CALLCONV +upvec_compactToTrieHandler(void *context, + UChar32 start, UChar32 limit, + int32_t rowIndex, uint32_t *row, int32_t columns, + UErrorCode *pErrorCode); + +#endif |