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86 lines
2.3 KiB
86 lines
2.3 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Utility.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "Utility.h"
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#include <boost/regex.hpp>
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#include <libethcore/Common.h>
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#include <libdevcrypto/SHA3.h>
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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bytes dev::eth::parseData(string const& _args)
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{
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bytes m_data;
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boost::smatch what;
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static const boost::regex r("(!|#|@|\\$)?\"([^\"]*)\"(\\s.*)?");
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static const boost::regex d("(@|\\$)?([0-9]+)(\\s*(ether)|(finney)|(szabo))?(\\s.*)?");
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static const boost::regex h("(@|\\$)?(0x)?(([a-fA-F0-9])+)(\\s.*)?");
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string s = _args;
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while (s.size())
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if (boost::regex_match(s, what, d))
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{
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u256 v((string)what[2]);
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if (what[6] == "szabo")
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v *= dev::eth::szabo;
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else if (what[5] == "finney")
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v *= dev::eth::finney;
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else if (what[4] == "ether")
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v *= dev::eth::ether;
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bytes bs = dev::toCompactBigEndian(v);
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if (what[1] != "$")
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for (auto i = bs.size(); i < 32; ++i)
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m_data.push_back(0);
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for (auto b: bs)
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m_data.push_back(b);
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s = what[7];
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}
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else if (boost::regex_match(s, what, h))
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{
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bytes bs = fromHex(((what[3].length() & 1) ? "0" : "") + what[3]);
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if (what[1] != "$")
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for (auto i = bs.size(); i < 32; ++i)
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m_data.push_back(0);
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for (auto b: bs)
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m_data.push_back(b);
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s = what[5];
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}
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else if (boost::regex_match(s, what, r))
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{
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bytes d = asBytes(what[2]);
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if (what[1] == "!")
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m_data += FixedHash<4>(sha3(d)).asBytes();
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else if (what[1] == "#")
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m_data += sha3(d).asBytes();
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else if (what[1] == "$")
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m_data += d + bytes{0};
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else
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m_data += d + bytes(32 - what[2].length() % 32, 0);
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s = what[3];
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}
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else
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s = s.substr(1);
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return m_data;
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}
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