void Add (ErrorType type, Node node, string message, params object[] args)
{
errors.Add (new Error (type, node.Location.BeginLine, node.Location.BeginColumn, string.Format (message, args)));
}
public void Parse (string fileName, TextReader textStream)
{
var parser = new AspParser (fileName, textStream);
this.fileName = fileName;
parser.Error += ParseError;
parser.TagParsed += TagParsed;
parser.TextParsed += TextParsed;
currentNode = this;
parser.Parse ();
}
void TagParsed (ILocation location, TagType tagtype, string tagId, TagAttributes attributes)
{
switch (tagtype)
{
case TagType.Close:
TagNode tn = currentNode as TagNode;
if (tn == null) {
errors.Add (new ParseException (location, "Closing tag '" + tagId +"' does not match an opening tag."));
} else {
if (tn.TagName == tagId) {
tn.EndLocation = location;
currentNode = currentNode.Parent;
tn.Close ();
} else {
errors.Add (new ParseException (location, "Closing tag '" + tagId +"' does not match opening tag '" + tn.TagName + "'."));
currentNode = currentNode.Parent;
TagParsed (location, TagType.Close, tagId, null);
}
}
break;
case TagType.CodeRender:
case TagType.CodeRenderExpression:
case TagType.DataBinding:
try {
AddtoCurrent (location, new ExpressionNode (location, tagId, tagtype == TagType.CodeRenderExpression));
} catch (ParseException ex) {
errors.Add (ex);
}
break;
case TagType.Directive:
try {
AddtoCurrent (location, new DirectiveNode (location, tagId, attributes));
} catch (ParseException ex) {
errors.Add (ex);
}
break;
case TagType.Include:
throw new NotImplementedException ("Server-side includes have not yet been implemented: " + location.PlainText);
case TagType.ServerComment:
//FIXME: the parser doesn't actually return these
throw new NotImplementedException ("Server comments have not yet been implemented: " + location.PlainText);
case TagType.SelfClosing:
try {
tn = new TagNode (location, tagId, attributes);
AddtoCurrent (location, tn);
tn.Close ();
} catch (ParseException ex) {
errors.Add (ex);
}
break;
case TagType.Tag:
try {
//HACK: implicit close on block level in HTML4
TagNode prevTag = currentNode as TagNode;
if (prevTag != null) {
if (Array.IndexOf (implicitCloseOnBlock, prevTag.TagName.ToLowerInvariant ()) > -1
&& Array.IndexOf (blockLevel, tagId.ToLowerInvariant ()) > -1) {
errors.Add (new ParseException (location, "Unclosed " + prevTag.TagName + " tag. Assuming implicitly closed by block level tag."));
prevTag.Close ();
currentNode = currentNode.Parent;
}
}
//create and add the new tag
TagNode child = new TagNode (location, tagId, attributes);
AddtoCurrent (location, child);
//HACK: implicitly closing tags in HTML4
if (Array.IndexOf (implicitSelfClosing, tagId.ToLowerInvariant ()) > -1) {
errors.Add (new ParseException (location, "Unclosed " + tagId + " tag. Assuming implicitly closed."));
child.Close ();
} else {
currentNode = child;
}
} catch (ParseException ex) {
errors.Add (ex);
}
break;
case TagType.Text:
//FIXME: the parser doesn't actually return these
throw new NotImplementedException("Text tagtypes have not yet been implemented: " + location.PlainText);
}
}
void AddtoCurrent (ILocation location, Node n)
{
ParentNode pn = currentNode as ParentNode;
if (pn == null)
throw new ParseException (location, "Nodes of type " + n.GetType () + " must be inside other tags");
pn.AddChild (n);
}