// strtok.cpp - STLized strtok
// Marcus Fritzsch, http://fritschy.de, 2006-04-21

#include <algorithm>
#include <functional>
#include <vector>
#include <string>
#include <iostream>
#include <iterator>

class StringTok
{
	private:
		class TokSeparator : public std::unary_function <std::string, void>
		{
			public:
				std::string                sep;
				std::vector <std::string>  tok;

				TokSeparator (const std::string & s) : sep (s), tok () {
					tok.push_back ("");
				}

				void operator () (const char & c)
				{
					if (std::find (sep.begin (), sep.end (), c) == sep.end ())
						tok.back () += c;
					else if (tok.back ().length ())
						tok.push_back ("");
				}
		};

		std::vector <std::string> t;

	public:
		StringTok (const std::string & str, const std::string & sep) : t ()
		{
			t = std::for_each (str.begin (), str.end (), TokSeparator (sep)).tok;
		}

		// XXX: devilish!
		operator std::vector <std::string> () { return t; }
};

int main ()
{
	std::string theStr = "abc:xyz:012:-)";
	std::string theSep = ":-";
	std::vector <std::string> tokens = StringTok (theStr, theSep);
	std::copy (tokens.begin (), tokens.end (), std::ostream_iterator <std::string> (std::cout, "\n"));
	return 0;
}