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       1                 :            : // *****************************************************************************
       2                 :            : /*!
       3                 :            :   \file      src/Control/Walker/InputDeck/Parser.cpp
       4                 :            :   \copyright 2012-2015 J. Bakosi,
       5                 :            :              2016-2018 Los Alamos National Security, LLC.,
       6                 :            :              2019-2021 Triad National Security, LLC.
       7                 :            :              All rights reserved. See the LICENSE file for details.
       8                 :            :   \brief     Walker's input deck file parser
       9                 :            :   \details   Walker's input deck file parser
      10                 :            : */
      11                 :            : // *****************************************************************************
      12                 :            : 
      13                 :            : #include <ostream>
      14                 :            : #include <vector>
      15                 :            : #include <type_traits>
      16                 :            : 
      17                 :            : #include "NoWarning/pegtl.hpp"
      18                 :            : 
      19                 :            : #include "Print.hpp"
      20                 :            : #include "Tags.hpp"
      21                 :            : #include "ContainerUtil.hpp"
      22                 :            : #include "Walker/Types.hpp"
      23                 :            : #include "Walker/InputDeck/InputDeck.hpp"
      24                 :            : #include "Walker/InputDeck/Parser.hpp"
      25                 :            : #include "Walker/InputDeck/Grammar.hpp"
      26                 :            : 
      27                 :            : namespace tk {
      28                 :            : namespace grm {
      29                 :            : 
      30                 :            : extern tk::Print g_print;
      31                 :            : 
      32                 :            : } // grm::
      33                 :            : } // tk::
      34                 :            : 
      35                 :            : using walker::InputDeckParser;
      36                 :            : 
      37                 :         93 : InputDeckParser::InputDeckParser( const tk::Print& print,
      38                 :            :                                   const ctr::CmdLine& cmdline,
      39                 :         93 :                                   ctr::InputDeck& inputdeck ) :
      40                 :         93 :   FileParser( cmdline.get< tag::io, tag::control >() )
      41                 :            : // *****************************************************************************
      42                 :            : //  Constructor
      43                 :            : //! \param[in] print Pretty printer
      44                 :            : //! \param[in] cmdline Command line stack
      45                 :            : //! \param[inout] inputdeck Input deck stack where data is stored during parsing
      46                 :            : // *****************************************************************************
      47                 :            : {
      48                 :            :   // Create InputDeck (a tagged tuple) to store parsed input
      49         [ +  - ]:         93 :   ctr::InputDeck id( cmdline );
      50                 :            : 
      51                 :            :   // Reset parser's output stream to that of print's. This is so that mild
      52                 :            :   // warnings emitted during parsing can be output using the pretty printer.
      53                 :            :   // Usually, errors and warnings are simply accumulated during parsing and
      54                 :            :   // printed during diagnostics after the parser has finished. Howver, in some
      55                 :            :   // special cases we can provide a more user-friendly message right during
      56                 :            :   // parsing since there is more information available to construct a more
      57                 :            :   // sensible message. This is done in e.g., tk::grm::store_option. Resetting
      58                 :            :   // the global g_print, to that of passed in as the constructor argument allows
      59                 :            :   // not to have to create a new pretty printer, but use the existing one.
      60         [ +  - ]:         93 :   tk::grm::g_print.reset( print.save() );
      61                 :            : 
      62                 :            :   // Parse input file and populate the underlying tagged tuple
      63         [ +  - ]:         93 :   tao::pegtl::file_input<> in( m_filename );
      64                 :            :   tao::pegtl::parse< deck::read_file, tk::grm::action >( in, id );
      65                 :            : 
      66                 :            :   // Echo errors and warnings accumulated during parsing
      67         [ +  - ]:         93 :   diagnostics( print, id.get< tag::error >() );
      68                 :            : 
      69                 :            :   // Strip input deck (and its underlying tagged tuple) from PEGTL instruments
      70                 :            :   // and transfer it out
      71                 :            :   inputdeck = std::move( id );
      72                 :            : 
      73                 :            :   // Filter out repeated statistics
      74         [ +  - ]:         93 :   tk::unique( inputdeck.get< tag::stat >() );
      75                 :         93 : }