ulstringiterator.h

#ifndef ULSTRINGITERATOR_H
#define ULSTRINGITERATOR_H

#include "ulstring.h"

class ULStringIterator
{
    friend class ULString;
    friend class ULStringReverseIterator;
    UL_TEST_FRIEND;

public:
    ULStringIterator();
    ULStringIterator(const ULStringIterator& iterator);
    ~ULStringIterator();

    ULStringIterator& operator=(const ULStringIterator& iterator);
    operator ULStringReverseIterator() const;

    bool operator==(const ULStringIterator& iterator) const;
    bool operator!=(const ULStringIterator& iterator) const;

    int getCharIndex() const;
    const ULString *getString() const;

    bool isAtEnd() const;
    bool isAtBeginning() const;
    operator bool() const;

    void operator++();
    void operator++(int);
    void operator--();
    void operator--(int);
    void operator+=(int nChars);
    void operator-=(int nChars);
    ulchar operator*() const;

private:
    int charIndex;
    const ULString *string;
};


class ULStringReverseIterator
{
    friend class ULString;
    friend class ULStringIterator;

public:
    ULStringReverseIterator();
    ULStringReverseIterator(const ULStringReverseIterator& iterator);
    ~ULStringReverseIterator();

    ULStringReverseIterator& operator=(const ULStringReverseIterator& iterator);
    operator ULStringIterator() const;

    bool operator==(const ULStringReverseIterator& s) const;
    bool operator!=(const ULStringReverseIterator& s) const;

    int getCharIndex() const;
    const ULString *getString() const;

    bool isAtEnd() const;
    bool isAtBeginning() const;
    operator bool() const;

    void operator++();
    void operator++(int);
    void operator--();
    void operator--(int);
    void operator+=(int nChars);
    void operator-=(int nChars);
    ulchar  operator*() const;

private:
    int charIndex;
    const ULString *string;
};

#endif