Tree Container Library

#pragma once

#include "Alpha.h"

struct testNode
{
	testNode(char& _ch) : ch(_ch) {}

	void operator() (const Alpha& elem) 
	{
		assert(*elem.get_text().begin() == ch++);
	}

private:
	char& ch;
};


bool is_a_vowel(const Alpha& elem)
{
	std::string chr = elem.get_text();
	return chr == "A" || chr == "I" || chr == "O" || chr == "E" || chr == "U";
}

bool comp_if_vowel(const Alpha& lhs, const Alpha& rhs) { return is_a_vowel(lhs) && is_a_vowel(rhs); }



struct set_rank
{
	void operator() (Alpha& elem) { elem.set_ranking(*elem.get_text().begin() - 'A');}
};


struct add_one
{
	Alpha operator() (Alpha& elem) { elem.set_text(elem.get_text() + "1"); return elem; }
};



struct gen_alpha
{
	gen_alpha(char _ch) : ch(_ch) {}

	Alpha operator() () 
	{
		std::ostringstream ostr;
		ostr << ch++;
		return Alpha(ostr.str());
	}
private:
	char ch;
};