public void BuildTreeFromXML(string xml_string)
{
/*Preprocess XML String to remove extra stuff and make it suitable for processing*/
CleanXMLString(xml_string);
root = BuildTree(xml_string);
}
public XMLTag GetValue(String xml_string)
{
String local_xml_string = xml_string;
XMLTag tag = new XMLTag();
Dictionary <String, String> attributes = new Dictionary <String, String>();
string opening_tag_pattern = @"\<[\w]+(\s+[\w]+\s*=\s*[""][\d\w\s]*[""]\s*)*\s*\>";
Regex opening_tag_rgx = new Regex(opening_tag_pattern);
int index = opening_tag_rgx.Match(local_xml_string).Index;
bool success = opening_tag_rgx.Match(local_xml_string).Success;
/*The first tag in string is opening tag*/
if (opening_tag_rgx.Match(local_xml_string).Index == 0 && opening_tag_rgx.Match(local_xml_string).Success)
{
String tag_string = local_xml_string.Substring(0, local_xml_string.IndexOf('>') + 1);
/*Tag name*/
String tag_name_pattern = @"\<[\w]+";
Regex tag_name_rgx = new Regex(tag_name_pattern);
tag.tag_name = tag_name_rgx.Match(tag_string).Value.Remove(0, 1);
String value_pattern = @"\s+[\w]+\s*=\s*[""][\d\w\s]*[""]";
Regex value_rgx = new Regex(value_pattern);
while (value_rgx.Match(tag_string).Success)
{
Match match = value_rgx.Match(tag_string);
String[] attribute = match.Value.Split('=');
tag.attributes.Add(attribute[0], attribute[1]);
/*Operate on rest of string to extract remaining attributes*/
tag_string = tag_string.Substring(match.Index + match.Value.Count());
}
}
return(tag);
}
private XMLTag BuildTree(string xml_string)
{
List <String> children = GetChildren(xml_string);
XMLTag tag_node = GetValue(xml_string);
if (children != null && tag_node != null)
{
foreach (String child in children)
{
tag_node.children.Add(BuildTree(child));
}
}
else
{
tag_node = null;
}
return(tag_node);
}
public XMLParser()
{
root = null;
}
