src/main/interactive_shell.h

   1 /*********************                                                        */
   2 /*! \file interactive_shell.h
   3  ** \verbatim
   4  ** Original author: cconway
   5  ** Major contributors:
   6  ** Minor contributors (to current version):
   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 Interactive shell for CVC4
  15  **/
  16
  17 #ifndef __CVC4__INTERACTIVE_SHELL_H
  18 #define __CVC4__INTERACTIVE_SHELL_H
  19
  20 #include <iostream>
  21 #include <string>
  22
  23 #include "parser/parser_builder.h"
  24 #include "util/language.h"
  25 #include "util/options.h"
  26
  27 namespace CVC4 {
  28
  29   class Command;
  30
  31   using namespace parser;
  32
  33 class CVC4_PUBLIC InteractiveShell {
  34   std::istream& d_in;
  35   std::ostream& d_out;
  36   Parser* d_parser;
  37   const InputLanguage d_language;
  38
  39   static const std::string INPUT_FILENAME;
  40
  41 public:
  42   InteractiveShell(ExprManager& exprManager,
  43                   const Options& options) :
  44     d_in(*options.in),
  45     d_out(*options.out),
  46     d_language(options.inputLanguage) {
  47     ParserBuilder parserBuilder(exprManager,INPUT_FILENAME,options);
  48     /* Create parser with bogus input. */
  49     d_parser = parserBuilder.withStringInput("").build();
  50   }
  51
  52   /** Read a command from the interactive shell. This will read as
  53       many lines as necessary to parse a well-formed command. */
  54   Command *readCommand();
  55 };
  56
  57 } // CVC4 namespace
  58
  59 #endif // __CVC4__INTERACTIVE_SHELL_H