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66 lines
1.7 KiB
66 lines
1.7 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 CommonJS.cpp
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* @authors:
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* Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "CommonJS.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::jsToBytes(string const& _s)
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{
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if (_s.substr(0, 2) == "0x")
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// Hex
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return fromHex(_s.substr(2));
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else if (_s.find_first_not_of("0123456789") == string::npos)
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// Decimal
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return toCompactBigEndian(bigint(_s));
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else
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// Binary
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return asBytes(_s);
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}
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string dev::eth::jsPadded(string const& _s, unsigned _l, unsigned _r)
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{
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bytes b = jsToBytes(_s);
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while (b.size() < _l)
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b.insert(b.begin(), 0);
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while (b.size() < _r)
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b.push_back(0);
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return asString(b).substr(b.size() - max(_l, _r));
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}
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string dev::eth::jsPadded(string const& _s, unsigned _l)
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{
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if (_s.substr(0, 2) == "0x" || _s.find_first_not_of("0123456789") == string::npos)
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// Numeric: pad to right
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return jsPadded(_s, _l, _l);
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else
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// Text: pad to the left
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return jsPadded(_s, 0, _l);
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}
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string dev::eth::jsUnpadded(string _s)
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{
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auto p = _s.find_last_not_of((char)0);
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_s.resize(p == string::npos ? 0 : (p + 1));
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return _s;
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}
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