// Extract coordinates from a "(y,x)" string
int EpiphanyXML::ExtractCoords(XMLElement* element, unsigned* yid, unsigned* xid)
{
int valuelen;
// Given the attribute's name, find it in the element.
XMLVariable* v = element->FindVariableZ("id");
if ((!v) || ((valuelen = v->GetValue(0, 0)) == 0))
{
return -1;
}
else
{
int valuelen = v->GetValue(0, 0);
char buf[valuelen+1];
v->GetValue(buf);
return (sscanf(buf, "(%u,%u)", yid, xid) == 2) ? 0: -1;
}
}
// Extract a string value from an attribute
int EpiphanyXML::ExtractAttr(XMLElement* element, char** value, char* attr)
{
// Given the attribute's name, find it in the element.
XMLVariable* v = element->FindVariableZ(attr);
// If the attribute could not be found, set *value to NULL and return an error.
if (!v)
{
*value = NULL;
return -1;
}
// Find the length of the attribute
int valuelen = v->GetValue(0, 0);
// Create a new string big enough to hold the attribute's value.
*value = new char[valuelen+1];
// Copy the value of the attribute to the provided string pointer.
v->GetValue(*value);
return 0;
}
// Extract an unsigned value from an attribute
int EpiphanyXML::ExtractAttr(XMLElement* element, unsigned* uns_p, char* name)
{
char buf[128];
XMLVariable* v;
v = element->FindVariableZ(name);
// If the variable could not be found, return an error.
if (!v)
{
return -1;
}
// Else, convert it to an unsigned.
v->GetValue(buf);
*uns_p = strtoul(buf, NULL, 0);
return 0;
}
int OpenXML(const char* XMLFile, char *attribute)
{
XML* xml = new XML(XMLFile);
XMLElement* root = xml->GetRootElement();
unsigned int nodeCount = root->GetChildrenNum();
XMLElement** node = root->GetChildren();
for (unsigned int i = 0; i < nodeCount; i++) {
unsigned int leafCount = node[i]->GetChildrenNum();
XMLElement** leaf = node[i]->GetChildren();
for (unsigned int j = 0; j < leafCount; j++) {
XMLVariable* Att = leaf[j]->FindVariableZ(attribute);
if (Att) {
char Buf[255];
Att->GetValue(Buf);
printf("Attribute %s has value %s\n", attribute, Buf);
}
}
}
delete xml;
return 0;
}
