mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
128 lines
3.0 KiB
C++
128 lines
3.0 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Whiskers.cpp
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* @author Chris <chis@ethereum.org>
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* @date 2017
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*
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* Moustache-like templates.
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*/
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#include <libdevcore/Whiskers.h>
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#include <libdevcore/Assertions.h>
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#include <boost/regex.hpp>
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using namespace std;
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using namespace dev;
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Whiskers::Whiskers(string const& _template):
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m_template(_template)
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{
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}
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Whiskers& Whiskers::operator ()(string const& _parameter, string const& _value)
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{
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assertThrow(
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m_parameters.count(_parameter) == 0,
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WhiskersError,
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_parameter + " already set."
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);
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assertThrow(
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m_listParameters.count(_parameter) == 0,
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WhiskersError,
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_parameter + " already set as list parameter."
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);
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m_parameters[_parameter] = _value;
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return *this;
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}
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Whiskers& Whiskers::operator ()(
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string const& _listParameter,
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vector<map<string, string>> const& _values
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)
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{
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assertThrow(
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m_listParameters.count(_listParameter) == 0,
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WhiskersError,
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_listParameter + " already set."
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);
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assertThrow(
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m_parameters.count(_listParameter) == 0,
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WhiskersError,
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_listParameter + " already set as value parameter."
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);
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m_listParameters[_listParameter] = _values;
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return *this;
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}
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string Whiskers::render() const
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{
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return replace(m_template, m_parameters, m_listParameters);
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}
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string Whiskers::replace(
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string const& _template,
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StringMap const& _parameters,
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map<string, vector<StringMap>> const& _listParameters
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)
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{
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using namespace boost;
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static regex listOrTag("<([^#/>]+)>|<#([^>]+)>(.*?)</\\2>");
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return regex_replace(_template, listOrTag, [&](match_results<string::const_iterator> _match) -> string
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{
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string tagName(_match[1]);
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if (!tagName.empty())
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{
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assertThrow(_parameters.count(tagName), WhiskersError, "Value for tag " + tagName + " not provided.");
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return _parameters.at(tagName);
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}
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else
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{
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string listName(_match[2]);
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string templ(_match[3]);
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assertThrow(!listName.empty(), WhiskersError, "");
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assertThrow(
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_listParameters.count(listName),
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WhiskersError, "List parameter " + listName + " not set."
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);
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string replacement;
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for (auto const& parameters: _listParameters.at(listName))
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replacement += replace(templ, joinMaps(_parameters, parameters));
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return replacement;
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}
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});
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}
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Whiskers::StringMap Whiskers::joinMaps(
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Whiskers::StringMap const& _a,
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Whiskers::StringMap const& _b
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)
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{
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Whiskers::StringMap ret = _a;
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for (auto const& x: _b)
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assertThrow(
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ret.insert(x).second,
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WhiskersError,
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"Parameter collision"
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);
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return ret;
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}
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