bool Foam::entry::New(dictionary& parentDict, Istream& is)
{
is.fatalCheck("entry::New(const dictionary& parentDict, Istream&)");
keyType keyword;
// Get the next keyword and if invalid return false
if (!getKeyword(keyword, is))
{
return false;
}
else // Keyword starts entry ...
{
if
(
!disableFunctionEntries
&& keyword[0] == '#'
) // ... Function entry
{
word functionName = keyword(1, keyword.size()-1);
return functionEntry::execute(functionName, parentDict, is);
}
else if
(
!disableFunctionEntries
&& keyword[0] == '$'
) // ... Substitution entry
{
token nextToken(is);
is.putBack(nextToken);
if (keyword.size() > 2 && keyword[1] == token::BEGIN_BLOCK)
{
// Recursive substitution mode. Replace between {} with
// expansion and then let standard variable expansion deal
// with rest.
string s(keyword(2, keyword.size()-3));
// Substitute dictionary and environment variables. Do not allow
// empty substitutions.
stringOps::inplaceExpand(s, parentDict, true, false);
keyword.std::string::replace(1, keyword.size()-1, s);
}
if (nextToken == token::BEGIN_BLOCK)
{
word varName = keyword(1, keyword.size()-1);
// lookup the variable name in the given dictionary
const entry* ePtr = parentDict.lookupScopedEntryPtr
(
varName,
true,
true
);
if (ePtr)
{
// Read as primitiveEntry
const keyType newKeyword(ePtr->stream());
return parentDict.add
(
new dictionaryEntry(newKeyword, parentDict, is),
false
);
}
else
{
FatalIOErrorInFunction(is)
<< "Attempt to use undefined variable " << varName
<< " as keyword"
<< exit(FatalIOError);
return false;
}
}
else
{
parentDict.substituteScopedKeyword(keyword);
}
return true;
}
else if
(
!disableFunctionEntries
&& keyword == "include"
) // ... For backward compatibility
{
return functionEntries::includeEntry::execute(parentDict, is);
}
else // ... Data entries
{
token nextToken(is);
is.putBack(nextToken);
// Deal with duplicate entries
bool mergeEntry = false;
// See (using exact match) if entry already present
entry* existingPtr = parentDict.lookupEntryPtr
(
keyword,
false,
false
);
if (existingPtr)
{
if (functionEntries::inputModeEntry::merge())
{
mergeEntry = true;
}
else if (functionEntries::inputModeEntry::overwrite())
{
// clear dictionary so merge acts like overwrite
if (existingPtr->isDict())
{
existingPtr->dict().clear();
}
mergeEntry = true;
}
else if (functionEntries::inputModeEntry::protect())
{
// read and discard the entry
if (nextToken == token::BEGIN_BLOCK)
{
dictionaryEntry dummy(keyword, parentDict, is);
}
else
{
primitiveEntry dummy(keyword, parentDict, is);
}
return true;
}
else if (functionEntries::inputModeEntry::error())
{
FatalIOErrorInFunction(is)
<< "ERROR! duplicate entry: " << keyword
<< exit(FatalIOError);
return false;
}
}
if (nextToken == token::BEGIN_BLOCK)
{
return parentDict.add
(
new dictionaryEntry(keyword, parentDict, is),
mergeEntry
);
}
else
{
return parentDict.add
(
new primitiveEntry(keyword, parentDict, is),
mergeEntry
);
}
}
}
}
