test_ncbiargs.cpp

ncbi源码

        args["if"].AsInputFile () >> tmp;
        args["of"].AsOutputFile() << tmp << endl;
    }
}



// Optional
static void s_InitTest3(CArgDescriptions& arg_desc)
{
    arg_desc.AddOptionalKey("k1",
                            "fistOptionalKey",
                            "This is an optional argument",
                            CArgDescriptions::eString);
    arg_desc.AddOptionalKey("k2",
                            "secondOptionalKey",
                            "This is an optional argument",
                            CArgDescriptions::eString);

    arg_desc.AddFlag("f1", "Flag 1");
    arg_desc.AddFlag("f2", "Flag 2");
}

static void s_RunTest3(const CArgs& args, ostream& os)
{
    if (args["k1"])
        os << "k1=" << args["k1"].AsString() << endl;
    if (args["k2"])
        os << "k2=" << args["k2"].AsString() << endl;
}



// Data types
static void s_InitTest2(CArgDescriptions& arg_desc)
{
    arg_desc.AddKey("ka",
                    "alphaNumericKey", "This is a test alpha-num key argument",
                    CArgDescriptions::eString);

    arg_desc.AddKey("kb",
                    "booleanKey", "This is a test boolean key argument",
                    CArgDescriptions::eBoolean);

    arg_desc.AddKey("ki",
                    "integerKey", "This is a test integer key argument",
                    CArgDescriptions::eInteger);

    arg_desc.AddKey("kd",
                    "doubleKey", "This is a test double key argument",
                    CArgDescriptions::eDouble);
}

static void s_RunTest2(const CArgs& args, ostream& os)
{
    os << "ka=" << args["ka"].AsString() << endl;
    os << "kb=" << NStr::BoolToString( args["kb"].AsBoolean() ) << endl;
    os << "ki=" << args["ki"].AsInteger() << endl;
    os << "kd=" << args["kd"].AsDouble() << endl;
}


// The simplest test
static void s_InitTest1(CArgDescriptions& arg_desc)
{
    arg_desc.AddKey("k",
                    "key", "This is a key argument",
                    CArgDescriptions::eString);
}

static void s_RunTest1(const CArgs& args, ostream& os)
{
    os << "k=" << args["k"].AsString() << endl;
}



/////////////////////////////////////////////////////////////////////////////
//  Tests' array

struct STest {
    void (*init)(CArgDescriptions& arg_desc);
    void (*run)(const CArgs& args, ostream& os);
};


static STest s_Test[] =
{
    {s_InitTest0, s_RunTest0},  // default
    {s_InitTest1, s_RunTest1},
    {s_InitTest2, s_RunTest2},
    {s_InitTest3, s_RunTest3},
    {s_InitTest4, s_RunTest4},
    {s_InitTest5, s_RunTest5},
    {s_InitTest6, s_RunTest6},
    {s_InitTest7, s_RunTest7},
    {s_InitTest8, s_RunTest8},
    {s_InitTest9, s_RunTest9},
    {s_InitTest0, s_RunTest0},
    {0,           0}
};



/////////////////////////////////////////////////////////////////////////////
//  CArgTestApplication::


class CArgTestApplication : public CNcbiApplication
{
public:
    CArgTestApplication();
private:
    virtual void Init(void);
    virtual int  Run(void);
    virtual void Exit(void);
    size_t m_TestNo;
};


// Constructor -- setting version test
CArgTestApplication::CArgTestApplication()
{
    SetVersion(CVersionInfo(1,2,3,"NcbiArgTest"));
} 


// Choose the test to run, and
// Setup arg.descriptions accordingly
void CArgTestApplication::Init(void)
{
    // Set err.-posting and tracing on maximum
    SetDiagTrace(eDT_Enable);
    SetDiagPostFlag(eDPF_All);
    SetDiagPostLevel(eDiag_Info);

    // Get test # from env.variable $TEST_NO
    m_TestNo = 0;
    size_t max_test = sizeof(s_Test) / sizeof(s_Test[0]) - 2;
    const string& test_str = GetEnvironment().Get("TEST_NO");
    if ( !test_str.empty() ) {
        try {
            m_TestNo = NStr::StringToULong(test_str);
        } catch (...) {
            m_TestNo = 0;
        }

        if (m_TestNo > max_test) {
            m_TestNo = 0;
        }
    }

    // The "no-test" case
    if ( !s_Test[m_TestNo].init )
        return;

    // Create cmd-line argument descriptions class
    auto_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);

    // Specify USAGE context
    string prog_description =
        "This is a test program for command-line argument processing.\n"
        "TEST #" + NStr::UIntToString(m_TestNo) +
        "    (To run another test, set env.variable $TEST_NO to 0.." +
        NStr::UIntToString(max_test) + ")";
    bool usage_sort_args = (m_TestNo == 10);
    arg_desc->SetUsageContext(GetArguments().GetProgramBasename(),
                              prog_description, usage_sort_args);

    // Describe cmd-line arguments according to the chosen test #
    s_Test[m_TestNo].init(*arg_desc);

    // Setup arg.descriptions for this application
    SetupArgDescriptions(arg_desc.release());
}


// Printout arguments obtained from cmd.-line
int CArgTestApplication::Run(void)
{
    cout << string(72, '=') << endl;

    // The "no-test" case
    if ( !s_Test[m_TestNo].run ) {
        cout << "No arguments described." << endl;
        return 0;
    }

    // Do run
    s_Test[m_TestNo].run(GetArgs(), cout);

    // Printout obtained argument values
    string str;
    cout << GetArgs().Print(str) << endl;

    return 0;
}


// Cleanup
void CArgTestApplication::Exit(void)
{
    SetDiagStream(0);
}



/////////////////////////////////////////////////////////////////////////////
//  MAIN


int main(int argc, const char* argv[])
{
    // Execute main application function
    return CArgTestApplication().AppMain(argc, argv, 0, eDS_Default, 0);
}


/*
 * ===========================================================================
 * $Log: test_ncbiargs.cpp,v $
 * Revision 1000.1  2004/06/01 19:09:55  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R6.22
 *
 * Revision 6.22  2004/05/14 13:59:51  gorelenk
 * Added include of ncbi_pch.hpp
 *
 * Revision 6.21  2002/12/26 17:13:28  ivanov
 * Added version info test
 *
 * Revision 6.20  2002/07/15 18:17:25  gouriano
 * renamed CNcbiException and its descendents
 *
 * Revision 6.19  2002/07/11 14:18:29  gouriano
 * exceptions replaced by CNcbiException-type ones
 *
 * Revision 6.18  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 6.17  2001/03/26 16:52:19  vakatov
 * Fixed a minor warning
 *
 * Revision 6.16  2000/12/24 00:13:00  vakatov
 * Radically revamped NCBIARGS.
 * Introduced optional key and posit. args without default value.
 * Added new arg.value constraint classes.
 * Passed flags to be detected by HasValue() rather than AsBoolean.
 * Simplified constraints on the number of mandatory and optional extra args.
 * Improved USAGE info and diagnostic messages. Etc...
 *
 * Revision 6.15  2000/11/29 00:09:19  vakatov
 * Added test #10 -- to auto-sort flag and key args alphabetically
 *
 * Revision 6.14  2000/11/24 23:37:46  vakatov
 * The test is now "CNcbiApplication" based (rather than "bare main()")
 * -- to use and to test standard processing of cmd.-line arguments implemented
 * in "CNcbiApplication".
 * Also, test for CArgValue::CloseFile().
 *
 * Revision 6.13  2000/11/22 22:04:32  vakatov
 * Added special flag "-h" and special exception CArgHelpException to
 * force USAGE printout in a standard manner
 *
 * Revision 6.12  2000/11/22 19:40:51  vakatov
 * s_Test3() -- fixed:  Exist() --> IsProvided()
 *
 * Revision 6.11  2000/11/20 19:49:40  vakatov
 * Test0::  printout all arg values
 *
 * Revision 6.10  2000/11/17 22:04:31  vakatov
 * CArgDescriptions::  Switch the order of optional args in methods
 * AddOptionalKey() and AddPlain(). Also, enforce the default value to
 * match arg. description (and constraints, if any) at all times.
 *
 * Revision 6.9  2000/11/13 20:31:09  vakatov
 * Wrote new test, fixed multiple bugs, ugly "features", and the USAGE.
 *
 * Revision 6.8  2000/10/20 20:26:11  butanaev
 * Modified example #9.
 *
 * Revision 6.7  2000/10/11 21:03:50  vakatov
 * Cleanup to avoid 64-bit to 32-bit values truncation, etc.
 * (reported by Forte6 Patch 109490-01)
 *
 * Revision 6.6  2000/10/06 21:57:07  butanaev
 * Added Allow() function. Added classes CArgAllowValue, CArgAllowIntInterval.
 *
 * Revision 6.5  2000/09/29 17:11:01  butanaev
 * Got rid of IsDefaultValue(), added IsProvided().
 *
 * Revision 6.4  2000/09/28 21:00:21  butanaev
 * fPreOpen with opposite meaning took over fDelayOpen.
 * IsDefaultValue() added which returns true if no
 * value for an optional argument was provided in cmd. line.
 *
 * Revision 6.3  2000/09/22 21:26:28  butanaev
 * Added example with default arg values.
 *
 * Revision 6.2  2000/09/12 15:01:30  butanaev
 * Examples now switching by environment variable EXAMPLE_NUM.
 *
 * Revision 6.1  2000/08/31 23:55:35  vakatov
 * Initial revision
 *
 * ===========================================================================
 */