/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
// text on tag rows are identified by a single space.
if (parent != null && line.Data[offset] == ' ')
++offset;
TextNode node = new TextNode(parent, line.Data.Substring(offset));
if (parent == null)
node.LineInfo = line;
offset = line.Data.Length;
return node;
}
/// <summary>
/// Parse a node
/// todo: improve doc
/// </summary>
/// <param name="theLine"></param>
/// <param name="prototypes"></param>
/// <param name="parent"></param>
/// <param name="textNode"></param>
protected static void ParseNode(LineInfo theLine, NodeList prototypes, Node parent, TextNode textNode)
{
Node curNode = null;
int offset = 0;
// parse each part of a line
while (offset <= theLine.Data.Length - 1)
{
Node node = prototypes.GetPrototype(GetWord(theLine.Data, offset), curNode == null) ?? textNode;
node = node.Parse(prototypes, curNode, theLine, ref offset);
// first node on line, set it as current
if (curNode == null)
{
curNode = node;
curNode.LineInfo = theLine;
parent.Children.AddLast(node);
}
else
curNode.AddModifier(node); // append attributes etc.
}
foreach (LineInfo child in theLine.Children)
ParseNode(child, prototypes, curNode, textNode);
}
/// <summary>
/// Parse a file and convert into to our own template object code.
/// </summary>
/// <param name="reader">A <see cref="TextReader"/> containing our template</param>
/// <exception cref="CodeGeneratorException">If something is incorrect in the template.</exception>
public void Parse(TextReader reader)
{
_lineNo = -1;
_reader = reader;
_mother = new LineInfo(-1, string.Empty);
_prevLine = null;
_currentLine = null;
PreParse(reader);
NodeList prototypes = new NodeList();
prototypes.Add(new AttributeNode(null));
prototypes.Add(new TagNode(null));
prototypes.Add(new IdNode(null));
prototypes.Add(new SilentCodeNode(null));
prototypes.Add(new ClassNode(null));
prototypes.Add(new DisplayCodeNode(null));
prototypes.Add(new DocTypeTag(null, null));
prototypes.Add(new PartialNode(null));
TextNode textNode = new TextNode(null, "prototype");
_parentNode = new TextNode(null, string.Empty);
foreach (LineInfo info in _mother.Children)
ParseNode(info, prototypes, _parentNode, textNode);
}
/// <summary>
/// Convert node to HTML (with ASP-tags)
/// </summary>
/// <returns>HTML string</returns>
public override string ToHtml()
{
StringBuilder sb = new StringBuilder();
string intend = LineInfo == null ? string.Empty : string.Empty.PadLeft(LineInfo.Intendation, '\t');
sb.Append(intend);
sb.Append("<");
sb.Append(_name);
if (Modifiers.Count != 0)
{
sb.Append(' ');
}
TextNode textNode = null;
foreach (Node node in Modifiers)
{
if (node.IsTextNode)
{
textNode = node as TextNode;
}
else
{
sb.Append(node.ToHtml());
}
}
if (LineInfo.SelfClosed)
{
sb.Append("/>");
return(sb.ToString());
}
else
{
sb.Append(">");
}
if (textNode != null)
{
sb.Append(textNode.ToHtml());
}
if (Children.Count != 0)
{
sb.AppendLine();
}
foreach (Node node in Children)
{
sb.Append(node.ToHtml());
}
sb.Append(intend);
sb.Append("</");
sb.Append(_name);
sb.AppendLine(">");
return(sb.ToString());
}
