public DirectiveNode (ILocation location, string name, TagAttributes attributes)
: base (location)
{
this.name = name;
this.attributes = attributes;
//FIXME: workaround for weird parser MasterPage bug
if (string.IsNullOrEmpty(name))
foreach (string key in attributes.Keys)
if (key.ToLower() == "master")
this.name = "Master";
}
public DirectiveNode(ILocation location, string name, TagAttributes attributes)
: base(location)
{
this.name = name;
this.attributes = attributes;
//FIXME: workaround for weird parser MasterPage bug
if (string.IsNullOrEmpty(name))
{
foreach (string key in attributes.Keys)
{
if (key.ToLower() == "master")
{
this.name = "Master";
}
}
}
}
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 OnTagParsed (TagType tagtype, string id, TagAttributes attributes)
{
TagParsedHandler eh = events [tagParsedEvent] as TagParsedHandler;
if (eh != null)
eh (this, tagtype, id, attributes);
}
void GetServerTag (out TagType tagtype, out string id, out TagAttributes attributes)
{
string inside_tags;
bool old = tokenizer.ExpectAttrValue;
tokenizer.ExpectAttrValue = false;
if (Eat ('@')){
tokenizer.ExpectAttrValue = old;
tagtype = TagType.Directive;
id = "";
if (Eat (Token.DIRECTIVE))
id = tokenizer.Value;
attributes = GetAttributes ();
if (!Eat ('%') || !Eat ('>'))
OnError ("expecting '%>'");
return;
}
if (Eat (Token.DOUBLEDASH)) {
tokenizer.ExpectAttrValue = old;
tokenizer.Verbatim = true;
inside_tags = GetVerbatim (tokenizer.get_token (), "--%>");
tokenizer.Verbatim = false;
id = null;
attributes = null;
tagtype = TagType.ServerComment;
return;
}
tokenizer.ExpectAttrValue = old;
bool varname;
bool databinding;
varname = Eat ('=');
databinding = !varname && Eat ('#');
tokenizer.Verbatim = true;
inside_tags = GetVerbatim (tokenizer.get_token (), "%>");
tokenizer.Verbatim = false;
id = inside_tags;
attributes = null;
tagtype = (databinding ? TagType.DataBinding :
(varname ? TagType.CodeRenderExpression : TagType.CodeRender));
}
TagAttributes GetAttributes ()
{
int token;
TagAttributes attributes;
string id;
bool wellFormedForServer = true;
attributes = new TagAttributes ();
while ((token = tokenizer.get_token ()) != Token.EOF){
if (token == '<' && Eat ('%')) {
tokenizer.Verbatim = true;
attributes.Add ("", "<%" +
GetVerbatim (tokenizer.get_token (), "%>") + "%>");
tokenizer.Verbatim = false;
tokenizer.InTag = true;
continue;
}
if (token != Token.IDENTIFIER)
break;
id = tokenizer.Value;
if (Eat ('=')){
if (Eat (Token.ATTVALUE)){
attributes.Add (id, tokenizer.Value);
wellFormedForServer &= tokenizer.AlternatingQuotes;
} else if (Eat ('<') && Eat ('%')) {
tokenizer.Verbatim = true;
attributes.Add (id, "<%" +
GetVerbatim (tokenizer.get_token (), "%>") + "%>");
tokenizer.Verbatim = false;
tokenizer.InTag = true;
} else {
OnError ("expected ATTVALUE");
return null;
}
} else {
attributes.Add (id, null);
}
}
tokenizer.put_back ();
if (attributes.IsRunAtServer () && !wellFormedForServer) {
OnError ("The server tag is not well formed.");
return null;
}
return attributes;
}
void GetTag (out TagType tagtype, out string id, out TagAttributes attributes)
{
int token = tokenizer.get_token ();
tagtype = TagType.ServerComment;
id = null;
attributes = null;
switch (token){
case '%':
GetServerTag (out tagtype, out id, out attributes);
break;
case '/':
if (!Eat (Token.IDENTIFIER))
OnError ("expecting TAGNAME");
id = tokenizer.Value;
if (!Eat ('>'))
OnError ("expecting '>'. Got '" + id + "'");
tagtype = TagType.Close;
break;
case '!':
bool double_dash = Eat (Token.DOUBLEDASH);
if (double_dash)
tokenizer.put_back ();
tokenizer.Verbatim = true;
string end = double_dash ? "-->" : ">";
string comment = GetVerbatim (tokenizer.get_token (), end);
tokenizer.Verbatim = false;
if (comment == null)
OnError ("Unfinished HTML comment/DTD");
string pathType, filename;
if (double_dash && GetInclude (comment, out pathType, out filename)) {
tagtype = TagType.Include;
attributes = new TagAttributes ();
attributes.Add (pathType, filename);
} else {
tagtype = TagType.Text;
id = "<!" + comment + end;
}
break;
case Token.IDENTIFIER:
if (this.filename == "@@inner_string@@") {
// Actually not tag but "xxx < yyy" stuff in inner_string!
tagtype = TagType.Text;
tokenizer.InTag = false;
id = "<" + tokenizer.Odds + tokenizer.Value;
} else {
id = tokenizer.Value;
try {
attributes = GetAttributes ();
} catch (Exception e) {
OnError (e.Message);
break;
}
tagtype = TagType.Tag;
if (Eat ('/') && Eat ('>')) {
tagtype = TagType.SelfClosing;
} else if (!Eat ('>')) {
if (attributes.IsRunAtServer ()) {
OnError ("The server tag is not well formed.");
break;
}
tokenizer.Verbatim = true;
attributes.Add ("", GetVerbatim (tokenizer.get_token (), ">") + ">");
tokenizer.Verbatim = false;
}
}
break;
default:
tagtype = TagType.Text;
tokenizer.InTag = false;
id = "<" + tokenizer.Value;
break;
}
}
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);
}
}
internal TagNode(ILocation location, string name, TagAttributes attributes)
: base(location)
{
this.tagName = name;
this.attributes = attributes;
}
internal TagNode (ILocation location, string name, TagAttributes attributes)
: base (location)
{
this.tagName = name;
this.attributes = attributes;
}
