RangeMap.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
// Copyright (c) 1994 James Clark
// See the file COPYING for copying permission.
#pragma ident "%Z%%M% %I% %E% SMI"
#ifndef RangeMap_INCLUDED
#define RangeMap_INCLUDED 1
#include "Vector.h"
#include "Boolean.h"
#include "ISet.h"
#include "types.h"
#include <stddef.h>
#ifdef SP_NAMESPACE
namespace SP_NAMESPACE {
#endif
template<class From, class To>
struct RangeMapRange {
From fromMin;
From fromMax;
To toMin;
};
template<class From, class To> class RangeMapIter;
template<class From, class To>
class RangeMap {
public:
RangeMap();
Boolean map(From, To &, From &alsoMax) const;
// Return 0 for no matches, 1 for 1, 2 for more than 1.
unsigned inverseMap(To, From &, ISet<WideChar> &, WideChar &count) const;
void addRange(From, From, To);
private:
Vector<RangeMapRange<From,To> > ranges_;
friend class RangeMapIter<From,To>;
};
template<class From, class To>
class RangeMapIter {
public:
RangeMapIter(const RangeMap<From,To> &map);
Boolean next(From &fromMin, From &fromMax, To &toMin) {
if (!count_)
return 0;
else {
fromMin = ptr_->fromMin;
fromMax = ptr_->fromMax;
toMin = ptr_->toMin;
ptr_++;
count_--;
return 1;
}
}
private:
size_t count_;
Vector<RangeMapRange<From,To> >::const_iterator ptr_;
};
#ifdef SP_NAMESPACE
}
#endif
#endif /* not RangeMap_INCLUDED */
#ifdef SP_DEFINE_TEMPLATES
#include "RangeMap.cxx"
#endif