blob: b3cb4c9b4f6b79c3927ebd17878f430880a4c0fa [file] [log] [blame]
* 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"
/* 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 */