exprDriverIO.C

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    Copyright (C) 2019-2022 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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#include "exprDriver.H"
#include "exprTools.H"
#include "stringOps.H"

// * * * * * * * * * * * * * * * Local Functions * * * * * * * * * * * * * * //

namespace Foam
{

//  Write list as single or multiple entries - see exprTools::getList()
static void writeList
(
    Ostream& os,
    const UList<expressions::exprString>& list
)
{
    if (list.size() == 1)
    {
        os << list[0];
    }
    else
    {
        os << token::BEGIN_LIST;

        if (!list.empty())
        {
            os << nl;

            for (const expressions::exprString& str : list)
            {
                os << str << nl;
            }
        }
        os << token::END_LIST;
    }
}


} // End namespace Foam


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

Foam::expressions::exprString
Foam::expressions::exprDriver::readExpression
(
    const word& name,
    const dictionary& dict
)
{
    return expressions::exprString(name, dict);
}


Foam::expressions::exprString
Foam::expressions::exprDriver::readExpression
(
    const word& name
)
{
    return expressions::exprString(name, dict());
}


Foam::List<Foam::expressions::exprString>
Foam::expressions::exprDriver::readVariableStrings
(
    const dictionary& dict,
    const word& keyword,
    bool mandatory
)
{
    return exprTools::getList(keyword, dict, mandatory);
}


Foam::label Foam::expressions::exprDriver::setVariableStrings
(
    const dictionary& dict,
    bool mandatory
)
{
    variableStrings_ = readVariableStrings(dict, "variables", mandatory);

    return variableStrings_.size();
}


Foam::Ostream& Foam::expressions::exprDriver::writeVariableStrings
(
    Ostream& os,
    const word& keyword
) const
{
    if (keyword.size())
    {
        os.writeKeyword(keyword);
    }

    writeList(os, variableStrings_);

    if (keyword.size())
    {
        os.endEntry();
    }

    return os;
}


// ************************************************************************* //