src/main/interactive_shell.h

   1 /*********************                                                        */
   2 /*! \file interactive_shell.h
   3  ** \verbatim
   4  ** Original author: Christopher L. Conway
   5  ** Major contributors: Morgan Deters
   6  ** Minor contributors (to current version): none
   7  ** This file is part of the CVC4 project.
   8  ** Copyright (c) 2009-2014  New York University and The University of Iowa
   9  ** See the file COPYING in the top-level source directory for licensing
  10  ** information.\endverbatim
  11  **
  12  ** \brief Interactive shell for CVC4
  13  **/
  14
  15 #ifndef __CVC4__INTERACTIVE_SHELL_H
  16 #define __CVC4__INTERACTIVE_SHELL_H
  17
  18 #include <iostream>
  19 #include <string>
  20
  21 #include "util/language.h"
  22 #include "options/options.h"
  23
  24 namespace CVC4 {
  25
  26 class Command;
  27 class ExprManager;
  28 class Options;
  29
  30 namespace parser {
  31   class Parser;
  32 }/* CVC4::parser namespace */
  33
  34 class CVC4_PUBLIC InteractiveShell {
  35   std::istream& d_in;
  36   std::ostream& d_out;
  37   parser::Parser* d_parser;
  38   const Options& d_options;
  39   bool d_quit;
  40   bool d_usingReadline;
  41
  42   std::string d_historyFilename;
  43
  44   static const std::string INPUT_FILENAME;
  45   static const unsigned s_historyLimit = 500;
  46
  47 public:
  48   InteractiveShell(ExprManager& exprManager, const Options& options);
  49
  50   /**
  51    * Close out the interactive session.
  52    */
  53   ~InteractiveShell();
  54
  55   /**
  56    * Read a command from the interactive shell. This will read as
  57    * many lines as necessary to parse a well-formed command.
  58    */
  59   Command* readCommand();
  60
  61   /**
  62    * Return the internal parser being used.
  63    */
  64   parser::Parser* getParser() {
  65     return d_parser;
  66   }
  67
  68 };/* class InteractiveShell */
  69
  70 }/* CVC4 namespace */
  71
  72 #endif /* __CVC4__INTERACTIVE_SHELL_H */