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