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/********************* */
/*! \file printer.h
** \verbatim
** Original author: Morgan Deters <mdeters@cs.nyu.edu>
** Major contributors: none
** Minor contributors (to current version): Clark Barrett <barrett@cs.nyu.edu>, Andrew Reynolds <andrew.j.reynolds@gmail.com>
** This file is part of the CVC4 project.
** Copyright (c) 2009-2013 New York University and The University of Iowa
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Base of the pretty-printer interface
**
** Base of the pretty-printer interface.
**/
#include "cvc4_private.h"
#ifndef __CVC4__PRINTER__PRINTER_H
#define __CVC4__PRINTER__PRINTER_H
#include "util/language.h"
#include "util/sexpr.h"
#include "util/util_model.h"
#include "expr/node.h"
#include "expr/command.h"
namespace CVC4 {
class Printer {
/** Printers for each OutputLanguage */
static Printer* d_printers[language::output::LANG_MAX];
/** Make a Printer for a given OutputLanguage */
static Printer* makePrinter(OutputLanguage lang) throw();
// disallow copy, assignment
Printer(const Printer&) CVC4_UNUSED;
Printer& operator=(const Printer&) CVC4_UNUSED;
protected:
// derived classes can construct, but no one else.
Printer() throw() {}
/** write model response to command */
virtual void toStream(std::ostream& out, Model& m, const Command* c) const throw() = 0;
public:
/** Get the Printer for a given OutputLanguage */
static Printer* getPrinter(OutputLanguage lang) throw() {
if(d_printers[lang] == NULL) {
d_printers[lang] = makePrinter(lang);
}
return d_printers[lang];
}
/** Write a Node out to a stream with this Printer. */
virtual void toStream(std::ostream& out, TNode n,
int toDepth, bool types, size_t dag) const throw() = 0;
/** Write a Command out to a stream with this Printer. */
virtual void toStream(std::ostream& out, const Command* c,
int toDepth, bool types, size_t dag) const throw() = 0;
/** Write a CommandStatus out to a stream with this Printer. */
virtual void toStream(std::ostream& out, const CommandStatus* s) const throw() = 0;
/** Write an SExpr out to a stream with this Printer. */
virtual void toStream(std::ostream& out, const SExpr& sexpr) const throw();
/**
* Write a Result out to a stream with this Printer.
*
* The default implementation writes a reasonable string in lowercase
* for sat, unsat, valid, invalid, or unknown results. This behavior
* is overridable by each Printer, since sometimes an output language
* has a particular preference for how results should appear.
*/
virtual void toStream(std::ostream& out, const Result& r) const throw();
/** Write a Model out to a stream with this Printer. */
virtual void toStream(std::ostream& out, Model& m) const throw();
};/* class Printer */
}/* CVC4 namespace */
#endif /* __CVC4__PRINTER__PRINTER_H */
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