src/main/interactive_shell.h

   1 /*********************                                                        */
   2 /*! \file interactive_shell.h
   3  ** \verbatim
   4  ** Top contributors (to current version):
   5  **   Morgan Deters, Christopher L. Conway, Aina Niemetz
   6  ** This file is part of the CVC4 project.
   7  ** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
   8  ** in the top-level source directory and their institutional affiliations.
   9  ** All rights reserved.  See the file COPYING in the top-level source
  10  ** directory for licensing 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 <iosfwd>
  19 #include <string>
  20
  21 #include "options/language.h"
  22 #include "options/options.h"
  23 #include "util/unsafe_interrupt_exception.h"
  24
  25 namespace CVC4 {
  26
  27 class Command;
  28 class Options;
  29
  30 namespace api {
  31 class Solver;
  32 }
  33
  34 namespace parser {
  35   class Parser;
  36   class SymbolManager;
  37 }/* CVC4::parser namespace */
  38
  39 class CVC4_PUBLIC InteractiveShell
  40 {
  41   const Options& d_options;
  42   std::istream& d_in;
  43   std::ostream& d_out;
  44   parser::Parser* d_parser;
  45   bool d_quit;
  46   bool d_usingEditline;
  47
  48   std::string d_historyFilename;
  49
  50   static const std::string INPUT_FILENAME;
  51   static const unsigned s_historyLimit = 500;
  52
  53 public:
  54  InteractiveShell(api::Solver* solver, parser::SymbolManager* sm);
  55
  56  /**
  57   * Close out the interactive session.
  58   */
  59  ~InteractiveShell();
  60
  61  /**
  62   * Read a command from the interactive shell. This will read as
  63   * many lines as necessary to parse a well-formed command.
  64   */
  65  Command* readCommand();
  66
  67  /**
  68   * Return the internal parser being used.
  69   */
  70  parser::Parser* getParser() { return d_parser; }
  71
  72 };/* class InteractiveShell */
  73
  74 }/* CVC4 namespace */
  75
  76 #endif /* CVC4__INTERACTIVE_SHELL_H */