void ConfigLoader::parseScript(std::ifstream &stream)
{
//Get first token
_nextToken(stream);
if (tok == TOKEN_EOF)
{
stream.close();
return;
}
//Parse the script
_parseNodes(stream, 0);
stream.close();
}
void ConfigLoader::_parseNodes(std::ifstream &stream, ConfigNode *parent)
{
typedef std::pair<std::string, ConfigNode*> ScriptItem;
while (true)
{
switch (tok)
{
//Node
case TOKEN_Text:
//Add the new node
ConfigNode *newNode;
if (parent)
{
newNode = parent->addChild(tokVal);
}
else
{
newNode = new ConfigNode(0, tokVal);
}
//Get values
_nextToken(stream);
while (tok == TOKEN_Text)
{
newNode->addValue(tokVal);
_nextToken(stream);
}
//Add root nodes to scriptList
if (!parent){
std::string key;
if (newNode->getValues().empty())
{
key = newNode->getName() + ' ';
}
else
{
key = newNode->getName() + ' ' + newNode->getValues().front();
}
m_scriptList.insert(ScriptItem(key, newNode));
}
_skipNewLines(stream);
//Add any sub-nodes
if (tok == TOKEN_OpenBrace)
{
//Parse nodes
_nextToken(stream);
_parseNodes(stream, newNode);
//Check for matching closing brace
if (tok != TOKEN_CloseBrace)
{
throw std::runtime_error("Parse Error: Expecting closing brace");
}
_nextToken(stream);
_skipNewLines(stream);
}
break;
//Out of place brace
case TOKEN_OpenBrace:
throw std::runtime_error("Parse Error: Opening brace out of plane");
break;
//Return if end of nodes have been reached
case TOKEN_CloseBrace:
return;
//Return if reached end of file
case TOKEN_EOF:
return;
case TOKEN_NewLine:
_nextToken(stream);
break;
}
};
}
void ScriptLoader::_parseNodes(std::ifstream &stream, ScriptNode *parent)
{
typedef std::pair<std::string, ScriptNode*> ScriptItem;
while (true)
{
switch (mToken)
{
//Node
case TOKEN_Text:
{
//Add the new node
ScriptNode *newNode;
if (parent)
{
newNode = parent->addChild(mTokenValue);
}
else
{
newNode = new ScriptNode(0, mTokenValue);
}
//Get values
_nextToken(stream);
std::string valueStr;
int i=0;
while (mToken == TOKEN_Text)
{
if (i == 0)
valueStr += mTokenValue;
else
valueStr += " " + mTokenValue;
_nextToken(stream);
++i;
}
newNode->setValue(valueStr);
//Add root nodes to scriptList
if (!parent)
{
std::string key;
if (newNode->getValue() == "")
throw std::runtime_error("Root node must have a name (\"" + newNode->getName() + "\")");
key = newNode->getValue();
m_scriptList.insert(ScriptItem(key, newNode));
}
_skipNewLines(stream);
//Add any sub-nodes
if (mToken == TOKEN_OpenBrace)
{
//Parse nodes
_nextToken(stream);
_parseNodes(stream, newNode);
//Check for matching closing brace
if (mToken != TOKEN_CloseBrace)
{
throw std::runtime_error("Parse Error: Expecting closing brace");
}
_nextToken(stream);
_skipNewLines(stream);
}
newNode->mFileName = mCurrentFileName;
break;
}
//Out of place brace
case TOKEN_OpenBrace:
throw std::runtime_error("Parse Error: Opening brace out of plane");
break;
//Return if end of nodes have been reached
case TOKEN_CloseBrace:
return;
//Return if reached end of file
case TOKEN_EOF:
return;
case TOKEN_NewLine:
_nextToken(stream);
break;
}
};
}
