Str.h

#ifndef STRING_INC
#define STRING_INC

#include <iostream.h>
#include <string.h>

#include "memstr.h"

class string_t: public memorystream_t
{
public:
	unsigned long length() const { return F_position - 1; }

	string_t()
	: memorystream_t("", 1)
	{ }
	string_t(char ch)
	: memorystream_t(" ", 2)
	{
		F_data[0] = ch;
	}
	string_t(const char* text)
	: memorystream_t(text, strlen(text)+1)
	{ }
	string_t(const string_t& rhs)
	: memorystream_t(rhs.F_data, rhs.F_position)
	{ }

	string_t& operator =(const string_t& rhs);
	string_t& operator+=(const string_t& rhs);
	string_t& operator+ (const string_t& rhs);

	string_t operator()(long offset, long count) const;
	string_t left(long count) const
	{
		return operator()(0, count);
	}
	string_t right(long count) const
	{
		return operator()(length() - count, count);
	}
	string_t mid(long offset, long count) const
	{
		return operator()(offset, count);
	}

	operator const char*() const
	{
		return (const char*)F_data;
	}
	operator char*() const
	{
		char* newdata = new char [F_position];
		memcpy(newdata, F_data, F_position);
		return newdata;
	}

	string_t upper();
	string_t lower();
	bool operator ==(const string_t& s) const;
	bool operator < (const string_t& s) const;
	bool operator <=(const string_t& s) const;
	bool operator > (const string_t& s) const;
	bool operator >=(const string_t& s) const;
	char operator[](int offset) const;
};

#endif // STRING_INC