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;
}
