/* ******************************************************************************* * * Copyright (C) 1999-2008, International Business Machines * Corporation and others. All Rights Reserved. * ******************************************************************************* * file name: ucol_wgt.h * encoding: US-ASCII * tab size: 8 (not used) * indentation:4 * * created on: 2001mar08 * created by: Markus W. Scherer */ #ifndef UCOL_WGT_H #define UCOL_WGT_H #include "unicode/utypes.h" #if !UCONFIG_NO_COLLATION /* definitions for CE weights */ typedef struct WeightRange { uint32_t start, end; int32_t length, count; int32_t length2; uint32_t count2; } WeightRange; /** * Determine heuristically * what ranges to use for a given number of weights between (excluding) * two limits. * * @param lowerLimit A collation element weight; the ranges will be filled to cover * weights greater than this one. * @param upperLimit A collation element weight; the ranges will be filled to cover * weights less than this one. * @param n The number of collation element weights w necessary such that * lowerLimit<w<upperLimit in lexical order. * @param maxByte The highest valid byte value. * @param ranges An array that is filled in with one or more ranges to cover * n weights between the limits. * @return number of ranges, 0 if it is not possible to fit n elements between the limits */ U_CFUNC int32_t ucol_allocWeights(uint32_t lowerLimit, uint32_t upperLimit, uint32_t n, uint32_t maxByte, WeightRange ranges[7]); /** * Given a set of ranges calculated by ucol_allocWeights(), * iterate through the weights. * The ranges are modified to keep the current iteration state. * * @param ranges The array of ranges that ucol_allocWeights() filled in. * The ranges are modified. * @param pRangeCount The number of ranges. It will be decremented when necessary. * @return The next weight in the ranges, or 0xffffffff if there is none left. */ U_CFUNC uint32_t ucol_nextWeight(WeightRange ranges[], int32_t *pRangeCount); #endif /* #if !UCONFIG_NO_COLLATION */ #endif

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