bool FileLoader::parseNode(NODE node)
{
int32_t byte;
int32_t pos;
NODE currentNode = node;
while(1)
{
//read node type
if(readByte(byte))
{
currentNode->type = byte;
bool setPropsSize = false;
while(1)
{
//search child and next node
if(readByte(byte))
{
if(byte == NODE_START)
{
//child node start
if(safeTell(pos))
{
NODE childNode = new NodeStruct();
childNode->start = pos;
setPropsSize = true;
currentNode->propsSize = pos - currentNode->start - 2;
currentNode->child = childNode;
if(!parseNode(childNode))
return false;
}
else
return false;
}
else if(byte == NODE_END)
{
//current node end
if(!setPropsSize)
{
if(safeTell(pos))
currentNode->propsSize = pos - currentNode->start - 2;
else
return false;
}
if(readByte(byte))
{
if(byte == NODE_START)
{
//starts next node
if(safeTell(pos))
{
NODE nextNode = new NodeStruct();
nextNode->start = pos;
currentNode->next = nextNode;
currentNode = nextNode;
break;
}
else
return false;
}
else if(byte == NODE_END)
{
//up 1 level and move 1 position back
if(safeTell(pos) && safeSeek(pos))
return true;
else
return false;
}
else
{
//wrong format
m_lastError = ERROR_INVALID_FORMAT;
return false;
}
}
else
{
//end of file?
return true;
}
}
else if(byte == ESCAPE_CHAR)
{
if(!readByte(byte))
return false;
}
}
else
return false;
}
}
else
return false;
}
}
bool FileLoader::parseNode(NODE node)
{
int32_t byte, pos;
NODE currentNode = node;
while (readByte(byte)) {
currentNode->type = byte;
bool setPropsSize = false;
while (true) {
if (!readByte(byte)) {
return false;
}
bool skipNode = false;
switch (byte) {
case NODE_START: {
//child node start
if (!safeTell(pos)) {
return false;
}
NODE childNode = new NodeStruct();
childNode->start = pos;
currentNode->propsSize = pos - currentNode->start - 2;
currentNode->child = childNode;
setPropsSize = true;
if (!parseNode(childNode)) {
return false;
}
break;
}
case NODE_END: {
//current node end
if (!setPropsSize) {
if (!safeTell(pos)) {
return false;
}
currentNode->propsSize = pos - currentNode->start - 2;
}
if (!readByte(byte)) {
return true;
}
switch (byte) {
case NODE_START: {
//starts next node
if (!safeTell(pos)) {
return false;
}
skipNode = true;
NODE nextNode = new NodeStruct();
nextNode->start = pos;
currentNode->next = nextNode;
currentNode = nextNode;
break;
}
case NODE_END:
return safeTell(pos) && safeSeek(pos);
default:
m_lastError = ERROR_INVALID_FORMAT;
return false;
}
break;
}
case ESCAPE_CHAR: {
if (!readByte(byte)) {
return false;
}
break;
}
default:
break;
}
if (skipNode) {
break;
}
}
}
return false;
}
