primitiveEntry.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::primitiveEntry
 
Description
    A keyword and a list of tokens is a 'primitiveEntry'.
    An primitiveEntry can be read, written and printed, and the types and
    values of its tokens analysed.
 
    A primitiveEntry 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
    primitiveEntry.C
    primitiveEntryIO.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef primitiveEntry_H
#define primitiveEntry_H
 
#include "IStringStream.H"
#include "OStringStream.H"
 
#include "entry.H"
#include "ITstream.H"
#include "InfoProxy.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class dictionary;
 
/*---------------------------------------------------------------------------*\
                       Class primitiveEntry Declaration
\*---------------------------------------------------------------------------*/
 
class primitiveEntry
:
    public entry,
    public ITstream
{
    // Private Member Functions
 
        //- Append the given tokens starting at the current tokenIndex
        void append(const UList<token>&);
 
        //- Append the given token to this entry
        void append
        (
            const token& currToken,
            const dictionary&,
            Istream&
        );
 
        //- Expand the given variable (keyword starts with $)
        bool expandVariable(const string&, const dictionary&);
 
        //- Expand the given function (keyword starts with #)
        bool expandFunction
        (
            const word&,
            const dictionary&,
            Istream&
        );
 
        //- Read the complete entry from the given stream
        void readEntry(const dictionary&, Istream&);
 
 
public:
 
    // Constructors
 
        //- Construct from keyword and a Istream
        primitiveEntry(const keyType&, Istream&);
 
        //- Construct from keyword, parent dictionary and Istream
        primitiveEntry(const keyType&, const dictionary& parentDict, Istream&);
 
        //- Construct from keyword and a ITstream
        primitiveEntry(const keyType&, const ITstream&);
 
        //- Construct from keyword and a single token
        primitiveEntry(const keyType&, const token&);
 
        //- Construct from keyword and a list of tokens
        primitiveEntry(const keyType&, const UList<token>&);
 
        //- Construct from keyword and by transferring a list of tokens
        primitiveEntry(const keyType&, const Xfer<List<token> >&);
 
        //- Construct from keyword and a T
        template<class T>
        primitiveEntry(const keyType&, const T&);
 
        autoPtr<entry> clone(const dictionary&) const
        {
            return autoPtr<entry>(new primitiveEntry(*this));
        }
 
 
    // Member functions
 
        //- Inherit read from ITstream
        using ITstream::read;
 
        //- Return the dictionary name
        const fileName& name() const
        {
            return ITstream::name();
        }
 
        //- Return the dictionary name
        fileName& name()
        {
            return ITstream::name();
        }
 
        //- Return line number of first token in dictionary
        label startLineNumber() const;
 
        //- Return line number of last token in dictionary
        label endLineNumber() const;
 
        //- Return true because this entry is a stream
        bool isStream() const
        {
            return true;
        }
 
        //- Return token stream if this entry is a primitive entry
        ITstream& stream() const;
 
        //- This entry is not a dictionary,
        //  calling this function generates a FatalError
        const dictionary& dict() const;
 
        //- This entry is not a dictionary,
        //  calling this function generates a FatalError
        dictionary& dict();
 
        //- Read tokens from the given stream
        virtual bool read(const dictionary&, Istream&);
 
        //- Write
        void write(Ostream&) const;
 
        //- Write, optionally with contents only (no keyword, etc)
        void write(Ostream&, const bool contentsOnly) const;
 
        //- Return info proxy.
        //  Used to print token information to a stream
        InfoProxy<primitiveEntry> info() const
        {
            return *this;
        }
};
 
 
template<>
Ostream& operator<<(Ostream&, const InfoProxy<primitiveEntry>&);
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#   include "primitiveEntryTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //