//read all cluster tree information
bool GmlParser::clusterRead(GmlObject* rootCluster,
ClusterGraph& CG)
{
//the root cluster is only allowed to hold child clusters and
//nodes in a list
if (rootCluster->m_valueType != gmlListBegin) return false;
// read all clusters and nodes
GmlObject *rootClusterSon = rootCluster->m_pFirstSon;
for(; rootClusterSon; rootClusterSon = rootClusterSon->m_pBrother)
{
switch(id(rootClusterSon))
{
case clusterPredefKey:
{
//we could delete this, but we aviod the call
if (rootClusterSon->m_valueType != gmlListBegin) return false;
// set attributes to default values
//we currently do not set any values
cluster c = CG.newCluster(CG.rootCluster());
//recursively read cluster
recursiveClusterRead(rootClusterSon, CG, c);
} //case cluster
break;
case vertexPredefKey: //direct root vertices
{
if (rootClusterSon->m_valueType != gmlStringValue) return false;
String vIDString = rootClusterSon->m_stringValue;
//we only allow a vertex id as string identification
if ((vIDString[0] != 'v') &&
(!isdigit(vIDString[0])))return false; //do not allow labels
//if old style entry "v"i
if (!isdigit(vIDString[0])) //should check prefix?
vIDString[0] = '0'; //leading zero to allow conversion
int vID = atoi(vIDString.cstr());
OGDF_ASSERT(m_mapToNode[vID] != 0)
//we assume that no node is already assigned ! Changed:
//all new nodes are assigned to root
//CG.reassignNode(mapToNode[vID], CG.rootCluster());
//it seems that this may be unnessecary, TODO check
CG.reassignNode(m_mapToNode[vID], CG.rootCluster());
//char* vIDChar = new char[vIDString.length()+1];
//for (int ind = 1; ind < vIDString.length(); ind++)
// vIDChar
}//case vertex
}//switch
}//for all rootcluster sons
return true;
}//clusterread
//recursively read cluster subtree information
bool GmlParser::recursiveClusterRead(GmlObject* clusterObject,
ClusterGraph& CG,
cluster c)
{
//for direct root cluster sons, this is checked twice...
if (clusterObject->m_valueType != gmlListBegin) return false;
GmlObject *clusterSon = clusterObject->m_pFirstSon;
for(; clusterSon; clusterSon = clusterSon->m_pBrother)
{
//we dont read the attributes, therefore look only for
//id and sons
switch(id(clusterSon))
{
case clusterPredefKey:
{
if (clusterSon->m_valueType != gmlListBegin) return false;
cluster cson = CG.newCluster(c);
//recursively read child cluster
recursiveClusterRead(clusterSon, CG, cson);
}
break;
case vertexPredefKey: //direct cluster vertex entries
{
if (clusterSon->m_valueType != gmlStringValue) return false;
string vIDString = clusterSon->m_stringValue;
//if old style entry "v"i
if ((vIDString[0] != 'v') &&
(!isdigit((int)vIDString[0])))return false; //do not allow labels
//if old style entry "v"i
if (!isdigit((int)vIDString[0])) //should check prefix?
vIDString[0] = '0'; //leading zero to allow conversion
int vID = stoi(vIDString);
OGDF_ASSERT(m_mapToNode[vID] != 0)
//we assume that no node is already assigned
//CG.reassignNode(mapToNode[vID], c);
//changed: all nodes are already assigned to root
CG.reassignNode(m_mapToNode[vID], c);
//char* vIDChar = new char[vIDString.length()+1];
//for (int ind = 1; ind < vIDString.length(); ind++)
// vIDChar
}//case vertex
}//switch
}//for clustersons
return true;
}//recursiveclusterread
