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 "util/unsafe_interrupt_exception.h"
  23 #include "options/options.h"
  24
  25 namespace CVC4 {
  26
  27 class Command;
  28 class ExprManager;
  29 class Options;
  30
  31 namespace parser {
  32   class Parser;
  33 }/* CVC4::parser namespace */
  34
  35 class CVC4_PUBLIC InteractiveShell {
  36   std::istream& d_in;
  37   std::ostream& d_out;
  38   parser::Parser* d_parser;
  39   const Options& d_options;
  40   bool d_quit;
  41   bool d_usingReadline;
  42
  43   std::string d_historyFilename;
  44
  45   static const std::string INPUT_FILENAME;
  46   static const unsigned s_historyLimit = 500;
  47
  48 public:
  49   InteractiveShell(ExprManager& exprManager, const Options& options);
  50
  51   /**
  52    * Close out the interactive session.
  53    */
  54   ~InteractiveShell();
  55
  56   /**
  57    * Read a command from the interactive shell. This will read as
  58    * many lines as necessary to parse a well-formed command.
  59    */
  60   Command* readCommand() throw (UnsafeInterruptException);
  61
  62   /**
  63    * Return the internal parser being used.
  64    */
  65   parser::Parser* getParser() {
  66     return d_parser;
  67   }
  68
  69 };/* class InteractiveShell */
  70
  71 }/* CVC4 namespace */
  72
  73 #endif /* __CVC4__INTERACTIVE_SHELL_H */