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/*****************************************************************************
*
* Copyright (c) 2000 - 2017, Lawrence Livermore National Security, LLC
* Produced at the Lawrence Livermore National Laboratory
* LLNL-CODE-442911
* All rights reserved.
*
* This file is part of VisIt. For details, see https://visit.llnl.gov/. The
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the disclaimer below.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the disclaimer (as noted below) in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of the LLNS/LLNL nor the names of its contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL LAWRENCE LIVERMORE NATIONAL SECURITY,
* LLC, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
*****************************************************************************/
#include "Rule.h"
#include "Colors.h"
using std::vector;
// ****************************************************************************
// Default Constructor: Rule::Rule
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
Rule::Rule()
{
lhs = NULL;
index = -1;
prec = -1;
id = -1;
}
// ****************************************************************************
// Constructor: Rule::Rule
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
Rule::Rule(int i, const Symbol &nt)
{
lhs = &nt;
index = -1;
prec = -1;
id = i;
}
// ****************************************************************************
// Method: Rule::operator>>
//
// Purpose:
// Sets the right hand side of the rule. Makes it look like a production.
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
Rule&
Rule::operator>>(const Sequence &s)
{
rhs = s;
return *this;
}
// ****************************************************************************
// Method: Rule::IsNullable
//
// Purpose:
// True if the RHS sequence is nullable.
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
bool
Rule::IsNullable(const vector<const Rule*> &rules) const
{
return rhs.IsNullable(rules);
}
// ****************************************************************************
// Method: operator<<(ostream, Rule)
//
// Purpose:
// Prints the Rule.
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
ostream &operator<<(ostream &o, const Rule &r)
{
r.Print(o);
return o;
}
// ****************************************************************************
// Method: Rule::Print
//
// Purpose:
// Prints the Rule.
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// ****************************************************************************
void
Rule::Print(ostream &o, int pos) const
{
o << *lhs << TermBold << TermCyan << " ==> " << TermReset;
rhs.Print(o, pos);
}
// ****************************************************************************
// Method: Rule::PrintNoColor
//
// Purpose:
// Prints the Rule without highliting.
//
// Programmer: Jeremy Meredith
// Creation: April 11, 2002
//
// ****************************************************************************
void
Rule::PrintNoColor(ostream &o, int pos) const
{
o << *lhs << " ==> ";
rhs.Print(o, pos);
}
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