You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
4.0 KiB
126 lines
4.0 KiB
/*
|
|
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 CommonJS.h
|
|
* @authors:
|
|
* Gav Wood <i@gavwood.com>
|
|
* Marek Kotewicz <marek@ethdev.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <string>
|
|
#include "FixedHash.h"
|
|
#include "CommonData.h"
|
|
#include "CommonIO.h"
|
|
|
|
namespace dev
|
|
{
|
|
|
|
template <unsigned S> std::string toJS(FixedHash<S> const& _h)
|
|
{
|
|
return "0x" + toHex(_h.ref());
|
|
}
|
|
|
|
template <unsigned N> std::string toJS(boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N, N, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>> const& _n)
|
|
{
|
|
std::string h = toHex(toCompactBigEndian(_n, 1));
|
|
// remove first 0, if it is necessary;
|
|
std::string res = h[0] != '0' ? h : h.substr(1);
|
|
return "0x" + res;
|
|
}
|
|
|
|
inline std::string toJS(bytes const& _n, std::size_t _padding = 0)
|
|
{
|
|
bytes n = _n;
|
|
n.resize(std::max<unsigned>(n.size(), _padding));
|
|
return "0x" + toHex(n);
|
|
}
|
|
|
|
template<unsigned T> std::string toJS(SecureFixedHash<T> const& _i)
|
|
{
|
|
std::stringstream stream;
|
|
stream << "0x" << _i.makeInsecure().hex();
|
|
return stream.str();
|
|
}
|
|
|
|
template<typename T> std::string toJS(T const& _i)
|
|
{
|
|
std::stringstream stream;
|
|
stream << "0x" << std::hex << _i;
|
|
return stream.str();
|
|
}
|
|
|
|
/// Convert string to byte array. Input parameters can be hex or dec. Returns empty array if invalid input e.g neither dec or hex.
|
|
bytes jsToBytes(std::string const& _s);
|
|
/// Add '0' on the head of @a _b until @a _l.
|
|
bytes padded(bytes _b, unsigned _l);
|
|
/// Add '0' on the queue of @a _b until @a _l.
|
|
bytes paddedRight(bytes _b, unsigned _l);
|
|
/// Removing all trailing '0'. Returns empty array if input contains only '0' char.
|
|
bytes unpadded(bytes _s);
|
|
/// Remove all 0 byte on the head of @a _s.
|
|
bytes unpadLeft(bytes _s);
|
|
/// Convert h256 into user-readable string (by directly using std::string constructor).
|
|
std::string fromRaw(h256 _n, unsigned* _inc = nullptr);
|
|
|
|
template <unsigned N> FixedHash<N> jsToFixed(std::string const& _s)
|
|
{
|
|
if (_s.substr(0, 2) == "0x")
|
|
// Hex
|
|
return FixedHash<N>(_s.substr(2 + std::max<unsigned>(N * 2, _s.size() - 2) - N * 2));
|
|
else if (_s.find_first_not_of("0123456789") == std::string::npos)
|
|
// Decimal
|
|
return (typename FixedHash<N>::Arith)(_s);
|
|
else
|
|
// Binary
|
|
return FixedHash<N>(); // FAIL
|
|
}
|
|
|
|
inline std::string jsToFixed(double _s)
|
|
{
|
|
return toJS(u256(_s * (double)(u256(1) << 128)));
|
|
}
|
|
|
|
template <unsigned N> boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>> jsToInt(std::string const& _s)
|
|
{
|
|
if (_s.substr(0, 2) == "0x")
|
|
// Hex
|
|
return fromBigEndian<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>>(fromHex(_s.substr(2)));
|
|
else if (_s.find_first_not_of("0123456789") == std::string::npos)
|
|
// Decimal
|
|
return boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>(_s);
|
|
else
|
|
// Binary
|
|
return 0; // FAIL
|
|
}
|
|
|
|
inline u256 jsToU256(std::string const& _s) { return jsToInt<32>(_s); }
|
|
|
|
inline int jsToInt(std::string const& _s)
|
|
{
|
|
if (_s.size() > 2 && _s.substr(0, 2).compare("0x") == 0)
|
|
return std::stoi(_s, nullptr, 16);
|
|
return std::stoi(_s, nullptr, 10);
|
|
}
|
|
|
|
inline std::string jsToDecimal(std::string const& _s)
|
|
{
|
|
return toString(jsToU256(_s));
|
|
}
|
|
|
|
}
|
|
|