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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2018-2025 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/>.
\*---------------------------------------------------------------------------*/
#include "negEntry.H"
#include "addToMemberFunctionSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace functionEntries
{
defineFunctionTypeNameAndDebug(negEntry, 0);
addToMemberFunctionSelectionTable
(
functionEntry,
negEntry,
execute,
primitiveEntryIstream
);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
Foam::string Foam::functionEntries::negEntry::negateVariable
(
const dictionary& parentDict,
Istream& is
)
{
// Read variable name as a word including the '$'
const variable var(is);
// Strip the leading '$' from the variable name
const string varName = var(1, var.size() - 1);
// Lookup the variable name in the parent dictionary....
const entry* ePtr = parentDict.lookupScopedEntryPtr(varName, true, false);
if (ePtr && ePtr->isStream())
{
const token variable(ePtr->stream());
// Convert to a string
OStringStream os(is.format());
os << variable;
const string str(os.str());
// Negate
if (str[0] == '-')
{
return str(1, str.size() - 1);
}
else
{
return '-' + str;
}
}
else
{
FatalIOErrorInFunction
(
parentDict
) << "Unknown dictionary variable name " << varName << endl
<< "Valid dictionary entries are " << parentDict.toc()
<< exit(FatalIOError);
return string::null;
}
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::functionEntries::negEntry::execute
(
const dictionary& contextDict,
primitiveEntry& contextEntry,
Istream& is
)
{
return insert(contextDict, contextEntry, negateVariable(contextDict, is));
}
// ************************************************************************* //
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