dictionaryEntry.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
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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 2 of the License, or (at your
    option) any later version.

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Class
    Foam::dictionaryEntry

Description
    A keyword and a list of tokens is a 'dictionaryEntry'.

    An dictionaryEntry can be read, written and printed, and the types and
    values of its tokens analysed.  A dictionaryEntry is a high-level building
    block for data description.  It is a front-end for the token parser.
    A list of entries can be used as a set of keyword syntax elements,
    for example.

SourceFiles
    dictionaryEntry.C
    dictionaryEntryIO.C

\*---------------------------------------------------------------------------*/

#ifndef dictionaryEntry_H
#define dictionaryEntry_H

#include "entry.H"
#include "dictionary.H"
#include "InfoProxy.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                           Class dictionaryEntry Declaration
\*---------------------------------------------------------------------------*/

class dictionaryEntry
:
    public entry,
    public dictionary
{
    // Private member functions

        void readData(Istream&);

        //- Dissallow bitwise copy
        dictionaryEntry(const dictionary&);


public:

    // Constructors

        //- Construct from the parent dictionary and Istream
        dictionaryEntry(const dictionary& parentDict, Istream&);

        //- Construct from the keyword, parent dictionary and a Istream
        dictionaryEntry
        (
            const keyType&,
            const dictionary& parentDict,
            Istream&
        );

        //- Construct from the keyword, parent dictionary and a dictionary
        dictionaryEntry
        (
            const keyType&,
            const dictionary& parentDict,
            const dictionary& dict
        );

        //- Construct as copy for the given parentDict
        dictionaryEntry
        (
            const dictionary& parentDict,
            const dictionaryEntry&
        );

        autoPtr<entry> clone(const dictionary& parentDict) const
        {
            return autoPtr<entry>(new dictionaryEntry(parentDict, *this));
        }


    // Member functions

        //- Return the dictionary name
        const fileName& name() const
        {
            return dictionary::name();
        }

        //- Return the dictionary name
        fileName& name()
        {
            return dictionary::name();
        }

        //- Return line number of first token in dictionary
        label startLineNumber() const;

        //- Return line number of last token in dictionary
        label endLineNumber() const;

        //- This entry is not a primitive,
        //  calling this function generates a FatalError
        ITstream& stream() const;

        //- Return true because this entry is a dictionary
        bool isDict() const
        {
            return true;
        }

        //- Return dictionary
        const dictionary& dict() const;

        //- Return non-const access to dictionary
        dictionary& dict();

        // Write
        void write(Ostream&) const;

        //- Return info proxy.
        //  Used to print token information to a stream
        InfoProxy<dictionaryEntry> info() const
        {
            return *this;
        }


    // Ostream operator

        friend Ostream& operator<<(Ostream&, const dictionaryEntry&);
};


template<>
Ostream& operator<<(Ostream&, const InfoProxy<dictionaryEntry>&);


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

} // End namespace Foam

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

#endif

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