| | 1 | /* |
| | 2 | ******************************************************************************* |
| | 3 | * |
| | 4 | * Copyright (C) 2002-2004, International Business Machines |
| | 5 | * Corporation and others. All Rights Reserved. |
| | 6 | * |
| | 7 | ******************************************************************************* |
| | 8 | * file name: propsvec.h |
| | 9 | * encoding: US-ASCII |
| | 10 | * tab size: 8 (not used) |
| | 11 | * indentation:4 |
| | 12 | * |
| | 13 | * created on: 2002feb22 |
| | 14 | * created by: Markus W. Scherer |
| | 15 | * |
| | 16 | * Store additional Unicode character properties in bit set vectors. |
| | 17 | */ |
| | 18 | |
| | 19 | #ifndef __UPROPSVEC_H__ |
| | 20 | #define __UPROPSVEC_H__ |
| | 21 | |
| | 22 | #include "unicode/utypes.h" |
| | 23 | #include "utrie.h" |
| | 24 | |
| | 25 | /* |
| | 26 | * Unicode Properties Vectors associated with code point ranges. |
| | 27 | * Stored in an array of uint32_t. |
| | 28 | * |
| | 29 | * The array starts with a header, then rows of integers store |
| | 30 | * the range limits and the properties vectors. |
| | 31 | * |
| | 32 | * In each row, row[0] contains the start code point and |
| | 33 | * row[1] contains the limit code point, |
| | 34 | * which is the start of the next range. |
| | 35 | * |
| | 36 | * Initially, there is only one range [0..0x110000[ with values 0. |
| | 37 | * |
| | 38 | * It would be possible to store only one range boundary per row, |
| | 39 | * but self-contained rows allow to later sort them by contents. |
| | 40 | */ |
| | 41 | enum { |
| | 42 | /* stores number of columns, plus two for start & limit values */ |
| | 43 | UPVEC_COLUMNS, |
| | 44 | UPVEC_MAXROWS, |
| | 45 | UPVEC_ROWS, |
| | 46 | /* search optimization: remember last row seen */ |
| | 47 | UPVEC_PREV_ROW, |
| | 48 | UPVEC_HEADER_LENGTH |
| | 49 | }; |
| | 50 | |
| | 51 | U_CAPI uint32_t * U_EXPORT2 |
| | 52 | upvec_open(int32_t columns, int32_t maxRows); |
| | 53 | |
| | 54 | U_CAPI void U_EXPORT2 |
| | 55 | upvec_close(uint32_t *pv); |
| | 56 | |
| | 57 | U_CAPI UBool U_EXPORT2 |
| | 58 | upvec_setValue(uint32_t *pv, |
| | 59 | UChar32 start, UChar32 limit, |
| | 60 | int32_t column, |
| | 61 | uint32_t value, uint32_t mask, |
| | 62 | UErrorCode *pErrorCode); |
| | 63 | |
| | 64 | U_CAPI uint32_t U_EXPORT2 |
| | 65 | upvec_getValue(uint32_t *pv, UChar32 c, int32_t column); |
| | 66 | |
| | 67 | /* |
| | 68 | * pRangeStart and pRangeLimit can be NULL. |
| | 69 | * @return NULL if rowIndex out of range and for illegal arguments |
| | 70 | */ |
| | 71 | U_CAPI uint32_t * U_EXPORT2 |
| | 72 | upvec_getRow(uint32_t *pv, int32_t rowIndex, |
| | 73 | UChar32 *pRangeStart, UChar32 *pRangeLimit); |
| | 74 | |
| | 75 | U_CAPI int32_t U_EXPORT2 |
| | 76 | upvec_toTrie(uint32_t *pv, UNewTrie *trie, UErrorCode *pErrorCode); |
| | 77 | |
| | 78 | #endif |
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