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1 : : // *****************************************************************************
2 : : /*!
3 : : \file src/Control/RNGTest/CmdLine/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 RNGTest's command line parser
9 : : \details This file defines the command-line argument parser for the random
10 : : number generator test suite, RNGTest.
11 : : */
12 : : // *****************************************************************************
13 : :
14 : : #include "NoWarning/pegtl.hpp"
15 : : #include "NoWarning/charm.hpp"
16 : :
17 : : #include "WalkerConfig.hpp"
18 : : #include "Exception.hpp"
19 : : #include "Print.hpp"
20 : : #include "Keywords.hpp"
21 : : #include "RNGTest/Types.hpp"
22 : : #include "RNGTest/CmdLine/Parser.hpp"
23 : : #include "RNGTest/CmdLine/Grammar.hpp"
24 : : #include "RNGTest/CmdLine/CmdLine.hpp"
25 : : #include "RNGTest/InputDeck/InputDeck.hpp"
26 : :
27 : : namespace tk {
28 : : namespace grm {
29 : :
30 : : tk::Print g_print;
31 : :
32 : : } // grm::
33 : : } // tk::
34 : :
35 : : namespace rngtest {
36 : :
37 : : extern ctr::InputDeck g_inputdeck;
38 : :
39 : : } // rngtest::
40 : :
41 : : using rngtest::CmdLineParser;
42 : :
43 : 4 : CmdLineParser::CmdLineParser( int argc,
44 : : char** argv,
45 : : const tk::Print& print,
46 : 4 : ctr::CmdLine& cmdline ) :
47 : 4 : StringParser( argc, argv )
48 : : // *****************************************************************************
49 : : // Contructor: parse the command line for RNGTest
50 : : //! \param[in] argc Number of C-style character arrays in argv
51 : : //! \param[in] argv C-style character array of character arrays
52 : : //! \param[in] print Pretty printer
53 : : //! \param[in,out] cmdline Command-line stack where data is stored from parsing
54 : : // *****************************************************************************
55 : : {
56 : : // Create CmdLine (a tagged tuple) to store parsed input
57 [ + - ][ + - ]: 8 : ctr::CmdLine cmd( g_inputdeck.get< tag::cmd, tag::ctrinfo >() );
58 : :
59 : : // Reset parser's output stream to that of print's. This is so that mild
60 : : // warnings emitted during parsing can be output using the pretty printer.
61 : : // Usually, errors and warnings are simply accumulated during parsing and
62 : : // printed during diagnostics after the parser has finished. However, in some
63 : : // special cases we can provide a more user-friendly message right during
64 : : // parsing since there is more information available to construct a more
65 : : // sensible message. This is done in e.g., tk::grm::store_option. Resetting
66 : : // the global g_print, to that of passed in as the constructor argument allows
67 : : // not to have to create a new pretty printer, but use the existing one.
68 [ + - ][ + - ]: 4 : tk::grm::g_print.reset( print.save() );
69 : :
70 : : // Parse command line string by populating the underlying tagged tuple:
71 [ + - ]: 8 : tao::pegtl::memory_input<> in( m_string, "command line" );
72 [ + - ]: 4 : tao::pegtl::parse< cmd::read_string, tk::grm::action >( in, cmd );
73 : :
74 : : // Echo errors and warnings accumulated during parsing
75 [ + - ]: 4 : diagnostics( print, cmd.get< tag::error >() );
76 : :
77 : : // Strip command line (and its underlying tagged tuple) from PEGTL instruments
78 : : // and transfer it out
79 : 4 : cmdline = std::move( cmd );
80 : :
81 : : // If we got here, parser succeeded
82 [ + - ][ + - ]: 4 : print.item( "Parsed command line", "success" );
83 : :
84 : : // Print out help on all command-line arguments if the executable was invoked
85 : : // without arguments or the help was requested
86 : 4 : const auto helpcmd = cmdline.get< tag::help >();
87 [ + - ][ - + ]: 4 : if (argc == 1 || helpcmd) {
88 [ - - ][ - - ]: 0 : print.help< tk::QUIET >( tk::rngtest_executable(),
89 : 0 : cmdline.get< tag::cmdinfo >(),
90 [ - - ][ - - ]: 0 : "Command-line Parameters:", "-" );
91 [ - - ][ - - ]: 0 : print.mandatory< tk::QUIET >( "The '--" + kw::control().string() +
[ - - ]
92 [ - - ]: 0 : " <filename>' argument is mandatory." );
93 [ - - ]: 0 : print.usage< tk::QUIET >(
94 [ - - ]: 0 : tk::rngtest_executable(),
95 [ - - ][ - - ]: 0 : "charmrun +p4 " + tk::rngtest_executable() + " -" +
[ - - ]
96 [ - - ][ - - ]: 0 : *kw::verbose().alias() + " -" + *kw::control().alias() + " allmkl.q",
[ - - ][ - - ]
[ - - ][ - - ]
97 : : "will execute the statistical tests configured in the control file "
98 [ - - ]: 0 : "'allmkl.q' on 4 CPUs producing verbose screen output" );
99 : : }
100 : :
101 : : // Print out help on all control file keywords if they were requested
102 : 4 : const auto helpctr = cmdline.get< tag::helpctr >();
103 [ - + ]: 4 : if (helpctr)
104 [ - - ][ - - ]: 0 : print.help< tk::QUIET >( tk::rngtest_executable(),
105 : 0 : cmdline.get< tag::ctrinfo >(),
106 [ - - ][ - - ]: 0 : "Control File Keywords:" );
107 : :
108 : : // Print out verbose help for a single keyword if requested
109 [ + - ]: 8 : const auto helpkw = cmdline.get< tag::helpkw >();
110 [ - + ]: 4 : if (!helpkw.keyword.empty())
111 [ - - ][ - - ]: 0 : print.helpkw< tk::QUIET >( tk::rngtest_executable(), helpkw );
112 : :
113 : : // Print out version information if it was requested
114 : 4 : const auto version = cmdline.get< tag::version >();
115 [ - + ]: 4 : if (version)
116 [ - - ][ - - ]: 0 : print.version< tk::QUIET >( tk::rngtest_executable(),
117 [ - - ]: 0 : tk::walker_version(),
118 [ - - ]: 0 : tk::copyright() );
119 : :
120 : : // Immediately exit if any help was output or was called without any argument
121 : : // or version was requested with zero exit code
122 [ + - ][ + - ]: 4 : if (argc == 1 || helpcmd || helpctr || !helpkw.keyword.empty() || version) {
[ + - ][ + - ]
[ - + ][ - + ]
123 [ - - ]: 0 : CkExit();
124 : : }
125 : :
126 : : // Make sure mandatory arguments are set
127 [ + - ]: 8 : auto alias = kw::control().alias();
128 [ - + ][ - - ]: 4 : ErrChk( !(cmdline.get< tag::io, tag::control >().empty()),
[ - - ][ - - ]
[ - - ][ - - ]
[ - - ][ - - ]
[ - - ][ - - ]
[ - - ][ - - ]
[ - - ][ - - ]
[ - - ]
129 : : "Mandatory control file not specified. "
130 : : "Use '--" + kw::control().string() + " <filename>'" +
131 : : ( alias ? " or '-" + *alias + " <filename>'" : "" ) + '.' );
132 : 4 : }
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