basic_sample.cpp
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- /*
- * ===========================================================================
- * PRODUCTION $Log: basic_sample.cpp,v $
- * PRODUCTION Revision 1000.1 2004/06/01 18:31:43 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
- * PRODUCTION
- * ===========================================================================
- */
- /* $Id: basic_sample.cpp,v 1000.1 2004/06/01 18:31:43 gouriano Exp $
- * ===========================================================================
- *
- * PUBLIC DOMAIN NOTICE
- * National Center for Biotechnology Information
- *
- * This software/database is a "United States Government Work" under the
- * terms of the United States Copyright Act. It was written as part of
- * the author's official duties as a United States Government employee and
- * thus cannot be copyrighted. This software/database is freely available
- * to the public for use. The National Library of Medicine and the U.S.
- * Government have not placed any restriction on its use or reproduction.
- *
- * Although all reasonable efforts have been taken to ensure the accuracy
- * and reliability of the software and data, the NLM and the U.S.
- * Government do not and cannot warrant the performance or results that
- * may be obtained by using this software or data. The NLM and the U.S.
- * Government disclaim all warranties, express or implied, including
- * warranties of performance, merchantability or fitness for any particular
- * purpose.
- *
- * Please cite the author in any work or product based on this material.
- *
- * ===========================================================================
- *
- * Authors: Denis Vakatov, Vladimir Ivanov
- *
- * File Description:
- * Sample for the command-line arguments' processing ("ncbiargs.[ch]pp"):
- *
- */
- #include <ncbi_pch.hpp>
- #include <corelib/ncbiapp.hpp>
- #include <corelib/ncbienv.hpp>
- #include <corelib/ncbiargs.hpp>
- USING_NCBI_SCOPE;
- /////////////////////////////////////////////////////////////////////////////
- // CSampleBasicApplication::
- class CSampleBasicApplication : public CNcbiApplication
- {
- private:
- virtual void Init(void);
- virtual int Run(void);
- virtual void Exit(void);
- };
- /////////////////////////////////////////////////////////////////////////////
- // Init test for all different types of arguments
- void CSampleBasicApplication::Init(void)
- {
- // Create command-line argument descriptions class
- auto_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);
- // Specify USAGE context
- arg_desc->SetUsageContext(GetArguments().GetProgramBasename(),
- "CArgDescriptions demo program");
- // Describe the expected command-line arguments
- arg_desc->AddOptionalPositional
- ("logfile",
- "This is an optional named positional argument without default value",
- CArgDescriptions::eOutputFile,
- CArgDescriptions::fPreOpen | CArgDescriptions::fBinary);
- arg_desc->AddFlag
- ("f1",
- "This is a flag argument: TRUE if set, FALSE if not set");
- arg_desc->AddPositional
- ("barfooetc",
- "This is a mandatory plain (named positional) argument",
- CArgDescriptions::eString);
- arg_desc->SetConstraint
- ("barfooetc", &(*new CArgAllow_Strings, "foo", "bar", "etc"));
- arg_desc->AddDefaultKey
- ("kd", "DefaultKey",
- "This is an optional integer key argument, with default value",
- CArgDescriptions::eInteger, "123");
- arg_desc->SetConstraint
- ("kd", new CArgAllow_Integers(0, 200));
- arg_desc->AddExtra
- (0, // no mandatory extra args
- 3, // up to 3 optional extra args
- "These are the optional extra (unnamed positional) arguments. "
- "They will be printed out to the file specified by the "
- "2nd positional argument,n"logfile"",
- CArgDescriptions::eBoolean);
- arg_desc->AddKey
- ("k", "MandatoryKey",
- "This is a mandatory alpha-num key argument",
- CArgDescriptions::eString);
- arg_desc->SetConstraint
- ("k", new CArgAllow_String(CArgAllow_Symbols::eAlnum));
- arg_desc->AddOptionalKey
- ("ko", "OptionalKey",
- "This is another optional key argument, without default value",
- CArgDescriptions::eBoolean);
- arg_desc->AddFlag
- ("f2",
- "This is another flag argument: FALSE if set, TRUE if not set",
- false);
- arg_desc->AddDefaultPositional
- ("one_symbol",
- "This is an optional named positional argument with default value",
- CArgDescriptions::eString, "a");
- arg_desc->SetConstraint
- ("one_symbol", new CArgAllow_Symbols(" aBtCd"));
- // Setup arg.descriptions for this application
- SetupArgDescriptions(arg_desc.release());
- }
- /////////////////////////////////////////////////////////////////////////////
- // Run test (printout arguments obtained from command-line)
- int CSampleBasicApplication::Run(void)
- {
- // Get arguments
- CArgs args = GetArgs();
- // Do run
- cout << string(72, '=') << endl;
- // Stream to result output
- // (NOTE: "x_lg" is just a workaround for bug in SUN WorkShop 5.1 compiler)
- ostream* x_lg = args["logfile"] ? &args["logfile"].AsOutputFile() : &cout;
- ostream& lg = *x_lg;
- if ( args["logfile"] )
- cout << "Printing arguments to file `"
- << args["logfile"].AsString() << "'..." << endl;
- // Printout argument values
- lg << "k: " << args["k"].AsString() << endl;
- lg << "barfooetc: " << args["barfooetc"].AsString() << endl;
- if ( args["logfile"] )
- lg << "logfile: " << args["logfile"].AsString() << endl;
- if ( args["ko"] ) {
- lg << "ko: " << NStr::BoolToString(args["ko"].AsBoolean())
- << endl;
- } else {
- lg << "ko: not provided" << endl;
- bool is_thrown = false;
- try {
- (void) args["ko"].AsString();
- } catch (CArgException&) {
- is_thrown = true;
- }
- }
- // Extra (unnamed positional) arguments
- if ( args.GetNExtra() ) {
- for (size_t extra = 1; extra <= args.GetNExtra(); extra++) {
- lg << "#" << extra << ": "
- << NStr::BoolToString(args[extra].AsBoolean())
- << " (passed as `" << args[extra].AsString() << "')"
- << endl;
- }
- } else {
- lg << "(no unnamed positional arguments passed in the cmd-line)"
- << endl;
- }
- // Separator
- lg << string(44, '-') << endl;
- // Printout obtained argument values
- string str;
- cout << args.Print(str) << endl;
- return 0;
- }
- /////////////////////////////////////////////////////////////////////////////
- // Cleanup
- void CSampleBasicApplication::Exit(void)
- {
- SetDiagStream(0);
- }
- /////////////////////////////////////////////////////////////////////////////
- // MAIN
- int main(int argc, const char* argv[])
- {
- // Execute main application function
- return CSampleBasicApplication().AppMain(argc, argv, 0, eDS_Default, 0);
- }
- /*
- * ===========================================================================
- * $Log: basic_sample.cpp,v $
- * Revision 1000.1 2004/06/01 18:31:43 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
- *
- * Revision 1.2 2004/05/21 21:41:41 gorelenk
- * Added PCH ncbi_pch.hpp
- *
- * Revision 1.1 2002/04/18 16:05:09 ucko
- * Add centralized tree for sample apps.
- *
- * Revision 6.4 2002/04/16 18:49:07 ivanov
- * Centralize threatment of assert() in tests.
- * Added #include <test/test_assert.h>. CVS log moved to end of file.
- *
- * Revision 6.3 2001/06/01 15:36:21 vakatov
- * Fixed for the case when "logfile" is not provided in the cmd.line
- *
- * Revision 6.2 2001/06/01 15:17:57 vakatov
- * Workaround a bug in SUN WorkShop 5.1 compiler
- *
- * Revision 6.1 2001/05/31 16:32:51 ivanov
- * Initialization
- *
- * ===========================================================================
- */