63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/*
|
|
*******************************************************************************
|
|
*
|
|
* Copyright (C) 1999-2001, 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 "ucol_imp.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 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, 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
|