70afbf01a5
Class
Foam::functionEntries::if
Description
Conditional parsing of dictionary entries.
E.g.
\verbatim
U_inlet 15;
#if #calc "${U_inlet} < 10"
..
#else
..
#endif
\endverbatim
Note:
- only supports single line, '\' is not supported
- condition should be readable as a \c Switch
(supports 0,1, true, false, etc.)
Class
Foam::functionEntries::ifeqEntry
Description
Conditional parsing of dictionary entries.
E.g.
\verbatim
a #calc "0.123";
b 1.23e-1;
#ifeq $a $b
..
#else
..
#endif
\endverbatim
\verbatim
ddtSchemes
{
#ifeq ${FOAM_APPLICATION} simpleFoam
default steadyState;
#else
default Euler;
#endif
}
\endverbatim
Note:
- supports dictionary variables and environment variables
- the two arguments should be two tokens
- the comparison is a string comparison for any word/string/variable,
integer comparison for two integers and floating point comparison for
any floating point number.
- parsing of (non)matching \c #else, \c #endif is not very sophisticated
Contributed by Mattijs Janssens
103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2018 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "ifEntry.H"
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#include "Switch.H"
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#include "addToMemberFunctionSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace functionEntries
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{
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defineTypeNameAndDebug(ifEntry, 0);
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addNamedToMemberFunctionSelectionTable
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(
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functionEntry,
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ifEntry,
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execute,
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dictionaryIstream,
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if
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);
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}
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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bool Foam::functionEntries::ifEntry::execute
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(
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DynamicList<filePos>& stack,
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dictionary& parentDict,
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Istream& is
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)
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{
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const label nNested = stack.size();
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stack.append(filePos(is.name(), is.lineNumber()));
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// Read line
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string line;
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dynamic_cast<ISstream&>(is).getLine(line);
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line += ';';
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IStringStream lineStream(line);
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const primitiveEntry e("ifEntry", parentDict, lineStream);
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const Switch doIf(e.stream());
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// Info<< "Using #" << typeName << " " << doIf
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// << " at line " << stack.last().second()
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// << " in file " << stack.last().first() << endl;
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bool ok = ifeqEntry::execute(doIf, stack, parentDict, is);
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if (stack.size() != nNested)
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{
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FatalIOErrorInFunction(parentDict)
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<< "Did not find matching #endif for condition starting"
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<< " at line " << stack.last().second()
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<< " in file " << stack.last().first() << exit(FatalIOError);
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}
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return ok;
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::functionEntries::ifEntry::execute
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(
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dictionary& parentDict,
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Istream& is
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)
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{
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DynamicList<filePos> stack(10);
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return execute(stack, parentDict, is);
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}
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// ************************************************************************* //
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