/*
	This file is part of cpp-ethereum.

	cpp-ethereum is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	cpp-ethereum is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
/** @file Instruction.cpp
 * @author Gav Wood <i@gavwood.com>
 * @date 2014
 */

#include "Instruction.h"

#include <boost/algorithm/string.hpp>
using namespace std;
using namespace eth;

u256s eth::assemble(std::string const& _code)
{
	u256s ret;
	char const* d = _code.data();
	char const* e = _code.data() + _code.size();
	while (d != e)
	{
		// skip to next token
		for (; d != e && !isalnum(*d); ++d) {}
		if (d == e)
			break;

		char const* s = d;
		for (; d != e && isalnum(*d); ++d) {}

		string t = string(s, d - s);
		if (isdigit(t[0]))
			ret.push_back(u256(t));
		else
		{
			boost::algorithm::to_upper(t);
			auto it = c_instructions.find(t);
			if (it != c_instructions.end())
				ret.push_back((u256)it->second);
			else
				cwarn << "Unknown assembler token" << t;
		}

	}
	return ret;
}