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// K-3D
// Copyright (c) 1995-2004, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// This program 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 2 of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "expression_grammar.h"
#include "expression.h"
namespace k3d
{
namespace expression
{
bool parse(std::istream& Stream, double&Value)
{
std::string buffer;
std::copy(std::istreambuf_iterator<char>(Stream), std::istreambuf_iterator<char>(), std::back_inserter(buffer));
return parse(buffer, Value);
}
bool parse(const std::string& Buffer, double& Value)
{
std::stack<double> stack;
if(!parse(Buffer.c_str(), expression_grammar(stack), space_p).full)
return false;
assert(!stack.empty());
Value = stack.top();
return true;
}
} // namespace expression
} // namespace k3d
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