Files
openfoam/src/OpenFOAM/db/dictionary/functionEntries/ifeqEntry/ifeqEntry.C
2019-02-13 08:06:36 +01:00

458 lines
11 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
| Copyright (C) 2018 OpenFOAM Foundation
-------------------------------------------------------------------------------
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 "ifeqEntry.H"
#include "stringOps.H"
#include "ifEntry.H"
#include "Switch.H"
#include "addToMemberFunctionSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace functionEntries
{
defineTypeNameAndDebug(ifeqEntry, 0);
addNamedToMemberFunctionSelectionTable
(
functionEntry,
ifeqEntry,
execute,
dictionaryIstream,
ifeq
);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::functionEntries::ifeqEntry::readToken(token& t, Istream& is)
{
// Skip dummy tokens - avoids entry::getKeyword consuming #else, #endif
do
{
if
(
is.read(t).bad()
|| is.eof()
|| !t.good()
)
{
return;
}
}
while (t == token::END_STATEMENT);
}
Foam::token Foam::functionEntries::ifeqEntry::expand
(
const dictionary& dict,
const string& keyword,
const token& t
)
{
if (keyword[0] == '$')
{
const word varName(keyword.substr(1, keyword.size()-1));
// lookup the variable name in the given dictionary
const entry* ePtr = dict.lookupScopedEntryPtr
(
varName,
true,
true
);
if (ePtr)
{
return token(ePtr->stream());
}
else
{
// String expansion. Allow unset variables
string expanded(keyword);
stringOps::inplaceExpand(expanded, dict, true, true);
// Re-form as a string token so we can compare to string
return token(expanded, t.lineNumber());
}
}
else if (!t.isString())
{
// Re-form as a string token so we can compare to string
return token(keyword, t.lineNumber());
}
return t;
}
Foam::token Foam::functionEntries::ifeqEntry::expand
(
const dictionary& dict,
const token& t
)
{
if (t.isWord())
{
return expand(dict, t.wordToken(), t);
}
else if (t.isVariable())
{
return expand(dict, t.stringToken(), t);
}
else if (t.isString())
{
return expand(dict, t.stringToken(), t);
}
return t;
}
bool Foam::functionEntries::ifeqEntry::equalToken
(
const token& t1,
const token& t2
)
{
const bool eqType = (t1.type() == t2.type());
switch (t1.type())
{
case token::UNDEFINED:
return eqType;
case token::BOOL:
return (eqType && t1.boolToken() == t2.boolToken());
case token::FLAG:
return (eqType && t1.flagToken() == t2.flagToken());
case token::PUNCTUATION:
return (eqType && t1.pToken() == t2.pToken());
case token::WORD:
if (eqType)
{
return t1.wordToken() == t2.wordToken();
}
else if (t2.isString())
{
wordRe w2(t2.stringToken(), wordRe::DETECT);
return w2.match(t1.wordToken(), false);
}
return false;
case token::STRING:
if (eqType)
{
const wordRe w1(t1.stringToken(), wordRe::DETECT);
const wordRe w2(t2.stringToken(), wordRe::DETECT);
return w1.match(w2, false) || w2.match(w1, false);
}
else if (t2.isWord())
{
const wordRe w1(t1.stringToken(), wordRe::DETECT);
return w1.match(t2.wordToken(), false);
}
return false;
case token::VARIABLE:
case token::VERBATIMSTRING:
if (eqType)
{
return t1.stringToken() == t2.stringToken();
}
else if (t2.isWord())
{
return t1.stringToken() == t2.wordToken();
}
return false;
case token::LABEL:
if (eqType)
{
return t1.labelToken() == t2.labelToken();
}
else if (t2.isScalar())
{
return t1.labelToken() == t2.scalarToken();
}
return false;
case token::FLOAT_SCALAR:
if (eqType)
{
return equal(t1.floatScalarToken(), t2.floatScalarToken());
}
else if (t2.isScalar())
{
return t1.scalarToken() == t2.scalarToken();
}
return false;
case token::DOUBLE_SCALAR:
if (eqType)
{
return equal(t1.doubleScalarToken(), t2.doubleScalarToken());
}
else if (t2.isScalar())
{
return t1.scalarToken() == t2.scalarToken();
}
return false;
case token::COMPOUND:
return false;
case token::ERROR:
return eqType;
}
return false;
}
void Foam::functionEntries::ifeqEntry::skipUntil
(
DynamicList<filePos>& stack,
const dictionary& parentDict,
const word& endWord,
Istream& is
)
{
while (!is.eof())
{
token t;
readToken(t, is);
if (t.isWord())
{
if (t.wordToken() == "#if" || t.wordToken() == "#ifeq")
{
stack.append(filePos(is.name(), is.lineNumber()));
skipUntil(stack, parentDict, "#endif", is);
stack.remove();
}
else if (t.wordToken() == endWord)
{
return;
}
}
}
FatalIOErrorInFunction(parentDict)
<< "Did not find matching " << endWord << exit(FatalIOError);
}
bool Foam::functionEntries::ifeqEntry::evaluate
(
const bool doIf,
DynamicList<filePos>& stack,
dictionary& parentDict,
Istream& is
)
{
while (!is.eof())
{
token t;
readToken(t, is);
if (t.isWord() && t.wordToken() == "#ifeq")
{
// Recurse to evaluate
execute(stack, parentDict, is);
}
else if (t.isWord() && t.wordToken() == "#if")
{
// Recurse to evaluate
ifEntry::execute(stack, parentDict, is);
}
else if
(
doIf
&& t.isWord()
&& (t.wordToken() == "#else" || t.wordToken() == "#elif")
)
{
// Now skip until #endif
skipUntil(stack, parentDict, "#endif", is);
stack.remove();
break;
}
else if (t.isWord() && t.wordToken() == "#endif")
{
stack.remove();
break;
}
else
{
is.putBack(t);
bool ok = entry::New(parentDict, is);
if (!ok)
{
return false;
}
}
}
return true;
}
bool Foam::functionEntries::ifeqEntry::execute
(
const bool doIf,
DynamicList<filePos>& stack,
dictionary& parentDict,
Istream& is
)
{
if (doIf)
{
evaluate(true, stack, parentDict, is);
}
else
{
// Fast-forward to #else
token t;
while (!is.eof())
{
readToken(t, is);
if
(
t.isWord()
&& (t.wordToken() == "#if" || t.wordToken() == "#ifeq")
)
{
stack.append(filePos(is.name(), is.lineNumber()));
skipUntil(stack, parentDict, "#endif", is);
stack.remove();
}
else if (t.isWord() && t.wordToken() == "#else")
{
break;
}
else if (t.isWord() && t.wordToken() == "#elif")
{
// const label lineNo = is.lineNumber();
// Read line
string line;
dynamic_cast<ISstream&>(is).getLine(line);
line += ';';
IStringStream lineStream(line);
const primitiveEntry e("ifEntry", parentDict, lineStream);
const Switch doIf(e.stream());
if (doIf)
{
// Info<< "Using #elif " << doIf << " at line " << lineNo
// << " in file " << is.name() << endl;
break;
}
}
else if (t.isWord() && t.wordToken() == "#endif")
{
stack.remove();
break;
}
}
if (t.wordToken() == "#else")
{
// Evaluate until we hit #endif
evaluate(false, stack, parentDict, is);
}
else if (t.wordToken() == "#elif")
{
// Evaluate until we hit #else or #endif
evaluate(true, stack, parentDict, is);
}
}
return true;
}
bool Foam::functionEntries::ifeqEntry::execute
(
DynamicList<filePos>& stack,
dictionary& parentDict,
Istream& is
)
{
const label nNested = stack.size();
stack.append(filePos(is.name(), is.lineNumber()));
// Read first token and expand any string
token cond1(is);
cond1 = expand(parentDict, cond1);
// Read second token and expand any string
token cond2(is);
cond2 = expand(parentDict, cond2);
const bool equal = equalToken(cond1, cond2);
// Info<< "Using #" << typeName << " " << cond1
// << " == " << cond2
// << " at line " << stack.last().second()
// << " in file " << stack.last().first() << endl;
bool ok = ifeqEntry::execute(equal, stack, parentDict, is);
if (stack.size() != nNested)
{
FatalIOErrorInFunction(parentDict)
<< "Did not find matching #endif for condition starting"
<< " at line " << stack.last().second()
<< " in file " << stack.last().first() << exit(FatalIOError);
}
return ok;
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::functionEntries::ifeqEntry::execute
(
dictionary& parentDict,
Istream& is
)
{
DynamicList<filePos> stack(10);
return execute(stack, parentDict, is);
}
// ************************************************************************* //