libcruft-util/cmdopt2/arg.cpp

#include "./arg.hpp"

using cruft::cmdopt2::positional;
using cruft::cmdopt2::keyword;


///////////////////////////////////////////////////////////////////////////////
positional
positional::create (char const *name)
{
    return create (std::string (name));
}


//-----------------------------------------------------------------------------
positional
positional::create (std::string &&name)
{
    positional res {};
    res.name = name;
    return res;
}


///////////////////////////////////////////////////////////////////////////////
keyword
keyword::create (char const *name)
{
    return create (std::string (name));
}


//-----------------------------------------------------------------------------
keyword
keyword::create (std::string &&name)
{
    keyword res {};
    res.name  = name;
    res.long_ = name;
    return res;
}


//-----------------------------------------------------------------------------
keyword
keyword::flag (void) const
{
    keyword res = *this;
    res.long_.reset ();
    res.short_.reset ();
    return res;
}


//-----------------------------------------------------------------------------
keyword
keyword::flag (char val) const
{
    keyword res = *this;
    res.short_ = val;
    return res;
}


//-----------------------------------------------------------------------------
keyword
keyword::flag (std::string_view val) const
{
    keyword res = *this;
    res.long_ = val;
    return res;
}


//-----------------------------------------------------------------------------
keyword
keyword::count (int &val) const
{
    CHECK (!acceptor1 and !acceptor0);

    keyword res = *this;
    res.acceptor0 = [&val] (void) { ++val; };
    return res;
}


//-----------------------------------------------------------------------------
keyword
keyword::present (bool &val) const
{
    CHECK (!acceptor1 and !acceptor0);

    val = false;

    keyword res = *this;
    res.acceptor0 = [&val] (void) { val = true; };
    return res;
}