183 lines
4.7 KiB
C
183 lines
4.7 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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\*---------------------------------------------------------------------------*/
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#include "evalEntry.H"
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#include "dictionary.H"
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#include "OTstream.H"
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#include "stringOps.H"
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#include "fieldExprDriver.H"
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#include "addToMemberFunctionSelectionTable.H"
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#undef DetailInfo
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#define DetailInfo if (::Foam::infoDetailLevel > 0) InfoErr
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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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addNamedToMemberFunctionSelectionTable
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(
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functionEntry,
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evalEntry,
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execute,
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primitiveEntryIstream,
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eval
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);
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} // End namespace functionEntry
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} // End namespace Foam
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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Foam::tokenList Foam::functionEntries::evalEntry::evaluate
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(
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const dictionary& parentDict,
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Istream& is
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)
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{
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#ifdef FULLDEBUG
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DetailInfo
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<< "Using #eval - line "
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<< is.lineNumber() << " in file " << parentDict.name() << nl;
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#endif
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// String to evaluate
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string s;
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token tok(is);
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if (!tok.good())
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{
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FatalIOErrorInFunction(is)
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<< "Bad token - could not get string to evaluate"
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<< exit(FatalIOError);
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return tokenList();
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}
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if (tok.isString())
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{
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s = tok.stringToken();
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}
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else if (tok == token::BEGIN_BLOCK)
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{
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dynamic_cast<ISstream&>(is).getLine(s, token::END_BLOCK);
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}
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else
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{
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is.putBack(tok);
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FatalIOErrorInFunction(is)
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<< "Invalid input for #eval" << nl
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<< exit(FatalIOError);
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}
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#ifdef FULLDEBUG
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DetailInfo
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<< "input: " << s << endl;
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#endif
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// Expand with env=true, empty=true, subDict=false
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// with comments stripped.
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// Special handling of $[...] syntax enabled.
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expressions::exprString::inplaceExpand(s, parentDict, true);
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stringOps::inplaceTrim(s);
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// An extraneous trailing ';' is a common input error, catch it now.
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// May need to relax in the future, trim or something else
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if (std::string::npos != s.find(';'))
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{
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FatalIOErrorInFunction(is)
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<< "Invalid input for #eval" << nl
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<< s << endl
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<< exit(FatalIOError);
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}
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#ifdef FULLDEBUG
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DetailInfo
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<< "expanded: " << s << endl;
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#endif
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if (s.empty())
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{
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InfoErr
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<< "Empty #eval - line "
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<< is.lineNumber() << " in file " << parentDict.name() << nl;
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return tokenList();
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}
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expressions::exprResult result;
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{
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expressions::fieldExprDriver driver(1);
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driver.parse(s);
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result = std::move(driver.result());
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}
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if (!result.hasValue() || !result.size())
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{
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InfoErr
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<< "Failed #eval - line "
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<< is.lineNumber() << " in file " << parentDict.name() << nl;
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return tokenList();
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}
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// Could average/reduce to a single value, but probably not needed
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//// result.testIfSingleValue(false); // No parallel check
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OTstream toks;
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result.writeValue(toks);
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return tokenList(std::move(toks.tokens()));
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}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::functionEntries::evalEntry::execute
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(
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const dictionary& parentDict,
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primitiveEntry& entry,
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Istream& is
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)
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{
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tokenList toks(evaluate(parentDict, is));
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entry.append(std::move(toks), true); // Lazy resizing
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return true;
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}
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// ************************************************************************* //
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