token.C

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-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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\*---------------------------------------------------------------------------*/
 
#include "token.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    token token::undefinedToken;
 
    typedef token::compound tokenCompound;
    defineTypeNameAndDebug(tokenCompound, 0);
    defineRunTimeSelectionTable(tokenCompound, Istream);
 
    const word token::typeNames_[] =
    {
        "undefined",
        "char",
        "word",
        "functionName",
        "variable",
        "string",
        "verbatimString",
        "int32_t",
        "int64_t",
        "uint32_t",
        "uint64_t",
        "floatScalar",
        "doubleScalar",
        "longDoubleScalar",
        "compound",
        "error"
    };
}
 
 
// * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * * //
 
void Foam::token::parseError(const char* expected) const
{
    cerr<< "Parse error, expected a " << expected
        << ", found \n    " << info() << std::endl;
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::token::compound::~compound()
{}
 
 
// * * * * * * * * * * * * * * * * Selectors * * * * * * * * * * * * * * * * //
 
Foam::autoPtr<Foam::token::compound> Foam::token::compound::New
(
    const word& compoundType,
    Istream& is
)
{
    IstreamConstructorTable::iterator cstrIter =
        IstreamConstructorTablePtr_->find(compoundType);
 
    if (cstrIter == IstreamConstructorTablePtr_->end())
    {
        FatalIOErrorInFunction(is)
            << "Unknown compound type " << compoundType << nl << nl
            << "Valid compound types:" << endl
            << IstreamConstructorTablePtr_->sortedToc()
            << abort(FatalIOError);
    }
 
    return autoPtr<Foam::token::compound>(cstrIter()(is));
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
const Foam::word& Foam::token::typeName() const
{
    if (type_ == token::UNDEFINED)
    {
        return typeNames_[0];
    }
    else if (type_ == token::COMPOUND)
    {
        return compoundTokenPtr_->type();
    }
    else
    {
        return typeNames_[type_ - token::PUNCTUATION + 1];
    }
}
 
 
bool Foam::token::compound::isCompound(const word& name)
{
    return
    (
        IstreamConstructorTablePtr_
     && IstreamConstructorTablePtr_->found(name)
    );
}
 
 
Foam::token::compound& Foam::token::transferCompoundToken(const Istream& is)
{
    if (type_ == COMPOUND)
    {
        if (compoundTokenPtr_->empty())
        {
            FatalIOErrorInFunction(is)
                << "compound has already been transferred from token\n    "
                << info() << abort(FatalIOError);
        }
        else
        {
            compoundTokenPtr_->empty() = true;
        }
 
        return *compoundTokenPtr_;
    }
    else
    {
        parseError("compound");
        return *compoundTokenPtr_;
    }
}
 
 
// ************************************************************************* //