includeEntry.H

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/*---------------------------------------------------------------------------*\
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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.
 
    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::functionEntries::includeEntry
 
Description
    Specify an include file when reading dictionaries.
 
    The file name is provided as a string in order to support the '/' directory
    separator and unusual characters as well as the usual expansion of
    environment variables and other constructs
    (eg, the \c ~OpenFOAM/ expansion).
 
    e.g. to include the file \c includeFile from the \c include directory:
    \verbatim
        #include "include/includeFile"
    \endverbatim
 
    Additionally optional arguments may be specified which are available for
    substitution in the included file e.g.
    \verbatim
        #include "regionFunctions"(region = heatedWall)
    \endverbatim
 
    will substitute \c heatedWall for \c $region in the \c regionFunctions file
 
    \verbatim
        #includeFunc sample(region = $region)
    \endverbatim
 
See also
    fileName
 
SourceFiles
    includeEntry.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef includeEntry_H
#define includeEntry_H
 
#include "functionEntry.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionEntries
{
 
/*---------------------------------------------------------------------------*\
                        Class includeEntry Declaration
\*---------------------------------------------------------------------------*/
 
class includeEntry
:
    public functionEntry
{
    // Private Member Functions
 
        //- Return the optional named arguments
        //  temporarily inserted into contextDict
        List<Tuple3<word, string, label>> insertNamedArgs
        (
            dictionary& contextDict,
            const Tuple2<string, label>& args
        ) const;
 
        //- Remove named argument entries from contextDict
        //  renaming any existing entries which had the same name
        void removeInsertNamedArgs
        (
            dictionary& contextDict,
            const List<Tuple3<word, string, label>>& namedArgs
        ) const;
 
 
 
protected:
 
    // Protected Member Functions
 
        //- Return the file name
        const string& fName() const
        {
            return operator[](0).stringToken();
        }
 
        //- Return the arguments string for processing by insertNamedArgs
        Tuple2<string, label> args() const
        {
            if (size() > 1)
            {
                return Tuple2<string, label>
                (
                    char(operator[](1).pToken())
                  + operator[](2).stringToken()
                  + char(operator[](3).pToken()),
                    operator[](1).lineNumber()
                );
            }
            else
            {
                return Tuple2<string, label>(string::null, 0);
            }
        }
 
        //- Return true if file presence is optional
        virtual bool includeIfPresent() const
        {
            return false;
        }
 
        //- Expand include fileName and return
        virtual fileName includeFileName
        (
            const fileName& dir,
            const fileName&,
            const dictionary&
        ) const;
 
        //- Expand the functionEntry into the contextEntry
        virtual bool virtualExecute
        (
            const dictionary& contextDict,
            primitiveEntry& contextEntry,
            Istream&
        );
 
 
public:
 
    // Static Data Members
 
        //- Report which file is included to stdout
        static bool log;
 
        //- Runtime type information
        FunctionTypeName("#include");
 
 
    // Constructors
 
        //- Construct from functionType, dictionary and Istream
        includeEntry
        (
            const functionName& functionType,
            const label lineNumber,
            const dictionary& parentDict,
            Istream& is
        );
 
        //- Construct from line number, dictionary and Istream
        includeEntry
        (
            const label lineNumber,
            const dictionary& parentDict,
            Istream& is
        );
 
        //- Copy construct
        includeEntry(const includeEntry&) = default;
 
        //- Clone
        virtual autoPtr<entry> clone(const dictionary&) const
        {
            return autoPtr<entry>(new includeEntry(*this));
        }
 
 
    // Member Functions
 
        //- Expand the functionEntry into the contextDict
        virtual bool execute(dictionary& contextDict, Istream&);
 
        //- Expand the functionEntry into the contextEntry
        static bool execute
        (
            const dictionary& contextDict,
            primitiveEntry& contextEntry,
            Istream&
        );
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const includeEntry&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionEntries
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //