rstring.h

TGFF省城程序

// Copyright 2000 by Robert Dick.
// All rights reserved.

#ifndef R_STRING_H_
#define R_STRING_H_

/*###########################################################################*/
#include "RFunctional.h"

#include <string>
#include <sstream>

namespace rstd {
template <typename T> class RVector;

/*===========================================================================*/
// Support routines for strings.

const RVector<std::string>
	tokenize(const std::string &s, const char * delim = " \t\n");

const std::string first_token(const std::string & s,
	const char * delim = " \t\n");

void pop_token(std::string & s, const char * delim = " \t\n");

template <typename T>
	struct insen_less : rbinary_function<const T &, const T &, bool>
	{ bool operator()(const T & a, const T & b) const; };

template <typename T>
	struct insen_equal_to : rbinary_function<const T &, const T &, bool>
	{ bool operator()(const T & a, const T & b) const; };

template <>
	struct insen_less<char>
	{ bool operator()(const char & a, const char & b) const; };

template <>
	struct insen_equal_to<char>
	{ bool operator()(const char & a, const char & b) const; };

template <>
	struct insen_less<std::string>
	{ bool operator()(const std::string & a, const std::string & b) const; };

template <>
	struct insen_equal_to<std::string>
	{ bool operator()(const std::string & a, const std::string & b) const; };

/*===========================================================================*/
// Automatically converts strings to many other types.

class Conv {
public:
	Conv(const std::string & str);

	operator bool();

	operator signed char();
	operator unsigned char();

	operator short();
	operator unsigned short();

	operator int();
	operator unsigned();

	operator long();
	operator unsigned long();

	operator float();
	operator double();

private:
		std::string str_;
};

template <typename T> std::string to_string(const T & data);

/*===========================================================================*/
void RString_test();

/*###########################################################################*/
#include "RString.cct"
}
#endif