// Q_INVOKABLE allows the functions to be called from QML
Q_INVOKABLE void requestVariableClear()
{
clearEquation();
}
void Foam::equationReader::removePowExponents
(
const label index,
tokenList& tl,
PtrList<equationOperation>& map,
labelList& opLvl,
labelList& pl
) const
{
// Remove pow(a,b) exponent part 'b' from an equation and create a sub-
// equation.
label tokenI(0);
while (tokenI < map.size())
{
if (map[tokenI].operation() == equationOperation::otpow)
{
// Found a 'pow('. Look for ','; fail on ')', or end of list
// pl checks ensure the ',' or ')' relate to the 'pow(', and not
// another function / parethesis
const label powFoundAt(tokenI);
const label pLvl(pl[tokenI]);
while ((opLvl[tokenI] != 5) || (pl[tokenI] != pLvl))
{
if
(
((opLvl[tokenI] == -4) && (pl[tokenI] == pLvl))
|| (tokenI == (map.size() - 1))
)
{
OStringStream description;
description << "pow() function takes two arguments.";
fatalParseError
(
index,
tl,
powFoundAt,
tokenI,
"equationReader::removePowExponents",
description
);
}
tokenI++;
}
// Found 'pow( ... ,' look for ')', fail on list end
const label commaFoundAt(tokenI);
while ((opLvl[tokenI] != -4) || (pl[tokenI] != pLvl))
{
if (tokenI == (map.size() - 1))
{
OStringStream description;
description << "Can't find closing parenthesis for "
<< "pow() function.";
fatalParseError
(
index,
tl,
powFoundAt,
tokenI,
"equationReader::removePowExponents",
description
);
}
tokenI++;
}
const label closeFoundAt(tokenI);
// Ignore if the exponent is only 1 token
if ((closeFoundAt - commaFoundAt) > 2)
{
// Now create sub-equation
OStringStream subEqnStream;
for
(
label subTokenI(commaFoundAt + 1);
subTokenI < closeFoundAt;
subTokenI++
)
{
if
(
tl[subTokenI].isPunctuation()
&& (tl[subTokenI].pToken() == token::COLON))
{
subEqnStream << "^";
}
else
{
subEqnStream << tl[subTokenI];
}
}
string subEqnRawText(subEqnStream.str());
const equation& eqn(operator[](index));
equation subEqn
(
eqn.name() + "_powExponent_" + name(powFoundAt),
subEqnRawText,
eqn.overrideDimensions(),
eqn.changeDimensions()
);
bool eqnCreated(false);
for (label eqnI(0); eqnI < size(); eqnI++)
{
const equation& eqnTest(operator[](eqnI));
if (eqnTest.name() == subEqn.name())
{
clearEquation(eqnI);
eqnTest.setRawText(subEqn.rawText());
eqnTest.setOverrideDimensions
(
subEqn.overrideDimensions()
);
eqnTest.setChangeDimensions
(
eqnTest.changeDimensions()
);
eqnCreated = true;
}
}
if (!eqnCreated)
{
createEquation(subEqn);
}
// Change commaFoundAt + 1 entry to reflect new subEquation
// reference
tl[commaFoundAt + 1] = token(subEqn.name());
map.set
(
commaFoundAt + 1,
new equationOperation(findSource(subEqn.name()))
);
opLvl[commaFoundAt + 1] = 0;
pl[commaFoundAt + 1] = pl[commaFoundAt];
// Remove the subEquation from tl, map, opLvl and pl
label tokensRemoved(closeFoundAt - (commaFoundAt + 2));
label newSize(map.size() - tokensRemoved);
for
(
label subTokenI(commaFoundAt + 2);
subTokenI < newSize;
subTokenI++
)
{
tl[subTokenI] = tl[subTokenI + tokensRemoved];
map[subTokenI] = map[subTokenI + tokensRemoved];
opLvl[subTokenI] = opLvl[subTokenI + tokensRemoved];
pl[subTokenI] = pl[subTokenI + tokensRemoved];
}
tl.setSize(newSize);
map.setSize(newSize);
opLvl.setSize(newSize);
pl.setSize(newSize);
}
}
tokenI++;
}
}
