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/*****************************************************************************
*
* Copyright (c) 2000 - 2010, Lawrence Livermore National Security, LLC
* Produced at the Lawrence Livermore National Laboratory
* LLNL-CODE-400124
* 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.
*
*****************************************************************************/
#ifndef PARSEEXEPTION_H
#define PARSEEXEPTION_H
#include "Pos.h"
#include <VisItException.h>
#include <snprintf.h>
class Rule;
// ****************************************************************************
// Class: ParseException
//
// Purpose:
// Classes for exceptions thrown by parsing expressions.
//
// Programmer: Jeremy Meredith
// Creation: April 5, 2002
//
// Modifications:
// Jeremy Meredith, Mon Jul 28 16:57:42 PDT 2003
// Added a little extra info to the syntax error messages.
//
// Jeremy Meredith, Fri Aug 15 12:49:53 PDT 2003
// Changed the error messages to be a little friendlier.
//
// Jeremy Meredith, Wed Nov 24 11:56:52 PST 2004
// Added a SyntacticException with no specific token type name, for the
// times that information is not readily available.
//
// Hank Childs, Fri Jan 28 14:57:14 PST 2005
// Inherit from VisItException.
//
// ****************************************************************************
class ParseException : public VisItException
{
public:
ParseException(Pos p) : pos(p) { }
virtual const char *Message() = 0;
Pos GetPos() { return pos; }
private:
Pos pos;
};
class LexicalException : public ParseException
{
public:
LexicalException(Pos p) : ParseException(p) { }
virtual const char *Message() { return "The text scanner encountered an unexpected character:"; }
};
class SyntacticException : public ParseException
{
public:
SyntacticException(Pos p) : ParseException(p)
{
SNPRINTF(msg, 1024, "The expression parser encountered an unexpected token:");
}
SyntacticException(Pos p, const std::string &s) : ParseException(p)
{
SNPRINTF(msg, 1024, "The expression parser encountered an unexpected token (%s):", s.c_str());
}
virtual const char *Message() { return msg; }
private:
char msg[1024];
};
class UnexpectedEndException : public ParseException
{
public:
UnexpectedEndException(Pos p) : ParseException(p) { }
virtual const char *Message() { return "The parser expected more stuff after the end of the expression:"; }
};
class SemanticException : public ParseException
{
public:
SemanticException(Pos p) : ParseException(p) { }
virtual const char *Message() { return "Semantic error:"; }
};
class UnhandledReductionException : public ParseException
{
public:
UnhandledReductionException(Pos p, const Rule *r) : ParseException(p), rule(r) { }
virtual const char *Message() { return "Parse error -- unhandled reduction:"; }
virtual const Rule *GetRule() { return rule; }
private:
const Rule *rule;
};
#endif
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