/**
* Read the next element
* @param balance_quotes If <code>true</code> string nodes are parsed
* paying attention to single and double quotes, such that tag-like
* strings are ignored if they are quoted.
* @return Node - The next node
*/
public Node ReadElement(bool balance_quotes)
{
try
{
if (nextParsedNode.Size > 0)
{
node = nextParsedNode[0];
nextParsedNode.Remove(0);
return(node);
}
if (ReadNextLine())
{
do
{
line = GetNextLine();
} while (line != null && line.Length == 0);
}
else if (dontReadNextLine)
{
dontReadNextLine = false;
}
else
{
posInLine = LastReadPosition + 1;
}
if (line == null)
{
return(null);
}
if (BeginTag(line, posInLine))
{
node = remarkNodeParser.Find(this, line, posInLine);
if (node != null)
{
return(node);
}
node = Tag.Find(this, line, posInLine);
if (node != null)
{
Tag tag = (Tag)node;
try
{
node = tag.Scan(parser.Scanners, url, this);
return(node);
}
catch (Exception e)
{
StringBuilder msgBuffer = new StringBuilder();
msgBuffer.Append(
"NodeReader.ReadElement() : Error occurred while trying to decipher the tag using scanners\n" +
" Tag being processed : " + tag.TagName + "\n" +
" Current Tag Line : " + tag.TagLine
);
AppendLineDetails(msgBuffer);
ParserException ex = new ParserException(msgBuffer.ToString(), e);
parser.Feedback.Error(msgBuffer.ToString(), ex);
throw ex;
}
}
node = EndTag.Find(line, posInLine);
if (node != null)
{
return(node);
}
}
else
{
node = stringParser.Find(this, line, posInLine, balance_quotes);
if (node != null)
{
return(node);
}
}
return(null);
}
catch (Exception e)
{
StringBuilder msgBuffer =
new StringBuilder("NodeReader.ReadElement() : Error occurred while trying to read the next element,");
AppendLineDetails(msgBuffer);
msgBuffer.Append("\n Caused by:\n").Append(msgBuffer.ToString());
ParserException ex = new ParserException(msgBuffer.ToString(), e);
parser.Feedback.Error(msgBuffer.ToString(), ex);
throw ex;
}
}
