public string getCData(AgentPath path)
{
string cData = "";
// get us jump-started to the root element, putting us past any script noise typically in the beginning of the document;
// note that if the root element is not the first of its type, then we can't just jump down like this
int startOfBody = path.ElementIndex == 1 ? ResponseString.LastIndexOf("<" + path.ElementType) : 0;
int index = path.positionOf(ResponseString, startOfBody);
char[] docChars = ResponseString.ToCharArray();
bool flag = true;
while (flag)
{
while (docChars[index] != '<')
{
cData += docChars[index++];
}
// skip past comments if there are any
if (docChars[index + 1] == '!' && docChars[index + 2] == '-' && docChars[index + 3] == '-')
{
while (!(docChars[index] == '>' && docChars[index - 1] == '-' && docChars[index - 2] == '-'))
{
index++;
}
index++;
}
else
{
flag = false;
}
}
return(cData);
}
public int positionOf(string document, int index)
{
Stack stack = new Stack();
char[] docChars = document.ToCharArray();
while (true)
{
// go until either an element starts, or an element ends
while (docChars[index] != '<')
{
index++;
}
index++;
// if an elements starts, check if it's a sibling
if (docChars[index] != '/')
{
string elementType = "";
while (docChars[index] != ' ' && docChars[index] != '>')
{
elementType += docChars[index++];
}
elementType = elementType.ToLower();
if (!elementType.StartsWith("!--"))
{
// zip past the element's end, stopping if for some reason a new element is discovered
while (docChars[index] != '>' && docChars[index] != '<')
{
index++;
}
if (docChars[index] == '>')
{
index++;
}
// check if this is our guy - make sure the stack count is zero, since we only want to consider siblings
if (stack.Count == 0 && elementType.Equals(ElementType))
{
ElementIndex--;
if (ElementIndex == 0)
{
// recursively call to our child, if we have one
if (Next == null)
{
return(index);
}
else
{
return(Next.positionOf(document, index));
}
}
}
// add to the stack
stack.Push(elementType);
}
}
// if an element ends, pop off of the stack
else
{
index++;
string elementType = "";
int backingUpIndex = index;
// go to end of tag
while (docChars[backingUpIndex] != '>')
{
backingUpIndex++;
}
// back up and get the closing element name
while (docChars[--backingUpIndex] != '/')
{
elementType = docChars[backingUpIndex] + elementType;
}
elementType = elementType.ToLower();
// pop off until either the stack is empty, or our start is found
string popped = "";
while (stack.Count > 0 && !popped.Equals(elementType))
{
popped = (string)stack.Pop();
}
}
}
}
public string getValue(AgentPath path, string attribute)
{
// get us jump-started to the root element, putting us past any script noise typically in the beginning of the document;
// note that if the root element is not the first of its type, then we can't just jump down like this
int startOfBody = path.ElementIndex == 1 ? ResponseString.LastIndexOf("<" + path.ElementType) : 0;
int index = path.positionOf(ResponseString, startOfBody) - 2; // go behind the ending tag
char[] docChars = ResponseString.ToCharArray();
// go backwards, and read off key/value pairs - if we reach the start tag, then the key wasn't found
while (true)
{
// get data
bool inQuotes = false;
bool foundEquals = false;
string elmValue = "";
while (!foundEquals)
{
if (docChars[index] == '\"')
{
inQuotes = !inQuotes;
}
else if (docChars[index] == '\'')
{
inQuotes = !inQuotes;
}
else if (docChars[index] == '=' && !inQuotes)
{
foundEquals = true;
}
else if (docChars[index] == '<' && !inQuotes)
{
throw new Exception("attribute " + attribute + " not found.");
}
else
{
elmValue = docChars[index] + elmValue;
}
index--;
}
while (docChars[index] == ' ')
{
index--;
}
string key = "";
while (docChars[index] != ' ')
{
key = docChars[index--] + key;
}
key = key.ToLower();
if (key.Equals(attribute))
{
return(elmValue);
}
}
}
