33e0c4ba88
- reuse more of stringOps expansions to reduce code and improve the
syntax flexiblity.
We can now embed "pre-calculated" values into an expression.
For example,
angle 35;
valueExpr "vector(${{cos(degToRad($angle))}}, 2, 3)";
and the ${{..}} will be evaluated with the regular string evaluation
and used to build the entire expression for boundary condition
evaluation.
Could also use for fairly wild indirect referencing:
axis1 (1 0 0);
axis2 (0 1 0);
axis3 (0 0 1);
index 100;
expr "$[(vector) axis${{ ($index % 3) +1 }}] / ${{max(1,$index)}}";
146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2019 OpenCFD Ltd.
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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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Application
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Test-exprEntry
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Description
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Read in the given dictionaries and attempt to use exprEntry expansion
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on any strings.
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Note
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Since this is only for testing purposes, only handles simple dictionary
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entries without attempting to descend into sub-dicts.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "IOstreams.H"
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#include "IOobject.H"
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#include "IFstream.H"
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#include "dictionary.H"
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#include "stringOps.H"
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#include "exprString.H"
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using namespace Foam;
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bool hasStrings(const primitiveEntry& e)
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{
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for (const token& tok : e.stream())
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{
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if (tok.isString())
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{
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return true;
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}
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}
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return false;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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argList::noBanner();
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argList::noParallel();
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argList::addArgument("dict .. dictN");
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argList args(argc, argv, false, true);
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if (args.size() <= 1)
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{
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Info<< "Must supply a dictionary name!" << nl;
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}
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for (label argi=1; argi < args.size(); ++argi)
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{
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IOobject::writeDivider(Info);
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IFstream is(args[argi]);
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const dictionary dict(is);
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Info<< "Input dictionary:" << dict << nl
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<< "With any expansions" << nl << endl;
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for (const entry& dEntry : dict)
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{
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const auto* eptr = isA<primitiveEntry>(dEntry);
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if (!eptr || !hasStrings(*eptr))
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{
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continue;
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}
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const primitiveEntry& e = *eptr;
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Info<< e << endl;
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for (const token& t : e.stream())
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{
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if (t.isString())
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{
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string str(t.stringToken());
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const bool throwingErr = FatalError.throwExceptions();
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const bool throwingIOErr = FatalIOError.throwExceptions();
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try
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{
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// Can get an error if we have things like
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// ${{ ... $[...] }}
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Info<< "str : " << stringOps::expand(str, dict) << nl;
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}
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catch (const Foam::error& err)
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{
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Info<< err.message().c_str() << nl;
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}
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try
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{
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// Should not trigger any errors
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expressions::exprString expr(str, dict, false);
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Info<< "expr: " << expr << nl;
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}
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catch (const Foam::error& err)
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{
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Info<< err.message().c_str() << nl;
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}
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FatalError.throwExceptions(throwingErr);
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FatalIOError.throwExceptions(throwingIOErr);
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Info<< nl;
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}
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}
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}
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}
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Info<< "\nEnd\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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