src/printer/printer.h

   1 /*********************                                                        */
   2 /*! \file printer.h
   3  ** \verbatim
   4  ** Original author: mdeters
   5  ** Major contributors: none
   6  ** Minor contributors (to current version): none
   7  ** This file is part of the CVC4 prototype.
   8  ** Copyright (c) 2009, 2010  The Analysis of Computer Systems Group (ACSys)
   9  ** Courant Institute of Mathematical Sciences
  10  ** New York University
  11  ** See the file COPYING in the top-level source directory for licensing
  12  ** information.\endverbatim
  13  **
  14  ** \brief Base of the pretty-printer interface
  15  **
  16  ** Base of the pretty-printer interface.
  17  **/
  18
  19 #include "cvc4_private.h"
  20
  21 #ifndef __CVC4__PRINTER__PRINTER_H
  22 #define __CVC4__PRINTER__PRINTER_H
  23
  24 #include "util/language.h"
  25 #include "expr/node.h"
  26
  27 namespace CVC4 {
  28
  29 class Printer {
  30   /** Printers for each OutputLanguage */
  31   static Printer* d_printers[language::output::LANG_MAX];
  32
  33   /** Make a Printer for a given OutputLanguage */
  34   static Printer* makePrinter(OutputLanguage lang);
  35
  36 public:
  37   /** Get the Printer for a given OutputLanguage */
  38   static Printer* getPrinter(OutputLanguage lang) {
  39     if(d_printers[lang] == NULL) {
  40       d_printers[lang] = makePrinter(lang);
  41     }
  42     return d_printers[lang];
  43   }
  44
  45   /** Write a Node out to a stream with this Printer. */
  46   virtual std::ostream& toStream(std::ostream& out, TNode n,
  47                                  int toDepth, bool types) const = 0;
  48 };/* class Printer */
  49
  50 }/* CVC4 namespace */
  51
  52 #endif /* __CVC4__PRINTER__PRINTER_H */
  53