AXmlObject ReadTextOrElement(IEnumerator <AXmlObject> objStream)
{
AXmlObject curr = objStream.Current;
if (curr is AXmlText || curr is AXmlElement)
{
return(ReadSingleObject(objStream));
}
else
{
AXmlTag currTag = (AXmlTag)curr;
if (currTag == StartTagPlaceholder)
{
return(ReadElement(objStream));
}
else if (currTag.IsStartOrEmptyTag)
{
return(ReadElement(objStream));
}
else
{
return(ReadSingleObject(objStream));
}
}
}
/// <summary> Visit RawTag </summary>
public override void VisitTag(AXmlTag tag)
{
sb.Append(tag.OpeningBracket);
sb.Append(tag.Name);
base.VisitTag(tag);
sb.Append(tag.ClosingBracket);
}
/// <summary> Visit RawTag </summary>
public virtual void VisitTag(AXmlTag tag)
{
foreach (AXmlObject child in tag.Children)
{
child.AcceptVisitor(this);
}
}
/// <summary> Visit RawTag </summary>
public override void VisitTag(AXmlTag tag)
{
sb.Append(tag.OpeningBracket);
sb.Append(tag.Name);
base.VisitTag(tag);
sb.Append(tag.ClosingBracket);
}
/// <summary> Visit RawTag </summary>
public override void VisitTag(AXmlTag tag)
{
if (tag.IsStartOrEmptyTag) {
sb.Append('<');
sb.Append(tag.Name);
foreach(AXmlAttribute attr in tag.Children.OfType<AXmlAttribute>().OrderBy(a => a.Name)) {
VisitAttribute(attr);
}
sb.Append('>');
if (tag.IsEmptyTag) {
// Use explicit start-end pair
sb.AppendFormat("</{0}>", tag.Name);
}
} else if (tag.IsEndTag) {
sb.AppendFormat("</{0}>", tag.Name);
} else if (tag.IsProcessingInstruction) {
sb.Append("<?");
sb.Append(tag.Name);
foreach(AXmlText text in tag.Children.OfType<AXmlText>()) {
sb.Append(text.Value);
}
if (tag.Children.Count == 0)
sb.Append(' ');
sb.Append("?>");
} else if (tag.IsCData) {
foreach(AXmlText text in tag.Children.OfType<AXmlText>()) {
sb.Append(Escape(text.Value));
}
}
}
/// <summary> Visit RawDocument </summary>
public override void VisitDocument(AXmlDocument document)
{
foreach (AXmlObject child in document.Children)
{
AXmlTag tag = child as AXmlTag;
// Only procssing instructions or elements
if (tag != null && tag.IsProcessingInstruction && tag.Name != "xml")
{
VisitTag(tag);
}
else if (child is AXmlElement)
{
VisitElement((AXmlElement)child);
}
}
}
/// <summary> Visit RawTag </summary>
public override void VisitTag(AXmlTag tag)
{
if (tag.IsStartOrEmptyTag)
{
sb.Append('<');
sb.Append(tag.Name);
foreach (AXmlAttribute attr in tag.Children.OfType <AXmlAttribute>().OrderBy(a => a.Name))
{
VisitAttribute(attr);
}
sb.Append('>');
if (tag.IsEmptyTag)
{
// Use explicit start-end pair
sb.AppendFormat("</{0}>", tag.Name);
}
}
else if (tag.IsEndTag)
{
sb.AppendFormat("</{0}>", tag.Name);
}
else if (tag.IsProcessingInstruction)
{
sb.Append("<?");
sb.Append(tag.Name);
foreach (AXmlText text in tag.Children.OfType <AXmlText>())
{
sb.Append(text.Value);
}
if (tag.Children.Count == 0)
{
sb.Append(' ');
}
sb.Append("?>");
}
else if (tag.IsCData)
{
foreach (AXmlText text in tag.Children.OfType <AXmlText>())
{
sb.Append(Escape(text.Value));
}
}
}
public override void VisitTag(AXmlTag tag)
{
if (tag.IsComment) {
StringBuilder sb = new StringBuilder();
foreach(AXmlText text in tag.Children.OfType<AXmlText>()) {
sb.Append(text.Value);
}
string value = sb.ToString();
foreach (string commentTag in lexerTags) {
if (value.Contains(commentTag)) {
CompilationUnit.TagComments.Add(new TagComment(value, CreateRegion(tag.StartOffset, tag.EndOffset)));
break;
}
}
}
base.VisitTag(tag);
}
/// <summary> Raises Changed event </summary>
protected void OnChanged()
{
AXmlParser.Log("Changed {0}", this);
if (Changed != null)
{
Changed(this, new AXmlObjectEventArgs()
{
Object = this
});
}
AXmlDocument doc = this.Document;
if (doc != null)
{
doc.OnObjectChanged(this);
}
// As a convenience, also rasie an event for the parent element
AXmlTag me = this as AXmlTag;
if (me != null && (me.IsStartOrEmptyTag || me.IsEndTag) && me.Parent is AXmlElement)
{
me.Parent.OnChanged();
}
}
/// <inheritdoc/>
internal override bool UpdateDataFrom(AXmlObject source)
{
if (!base.UpdateDataFrom(source))
{
return(false);
}
AXmlTag src = (AXmlTag)source;
if (this.OpeningBracket != src.OpeningBracket ||
this.Name != src.Name ||
this.ClosingBracket != src.ClosingBracket)
{
OnChanging();
this.OpeningBracket = src.OpeningBracket;
this.Name = src.Name;
this.ClosingBracket = src.ClosingBracket;
OnChanged();
return(true);
}
else
{
return(false);
}
}
/// <summary> Visit RawTag </summary>
public virtual void VisitTag(AXmlTag tag)
{
foreach(AXmlObject child in tag.Children) child.AcceptVisitor(this);
}
/// <summary> Get posible configurations after considering fiven object </summary>
Configurations ProcessObject(Configurations oldConfigs, AXmlObject obj)
{
AXmlParser.Log("Processing {0}", obj);
AXmlTag tag = obj as AXmlTag;
AXmlParser.Assert(obj is AXmlTag || obj is AXmlText || obj is AXmlElement, obj.GetType().Name + " not expected");
if (obj is AXmlElement)
{
AXmlParser.Assert(((AXmlElement)obj).IsProperlyNested, "Element not proprly nested");
}
Configurations newConfigs = new Configurations();
foreach (var kvp in oldConfigs)
{
Configuration oldConfig = kvp.Value;
var oldStartTags = oldConfig.StartTags;
var oldDocument = oldConfig.Document;
int oldCost = oldConfig.Cost;
if (tag != null && tag.IsStartTag)
{
newConfigs.Add(new Configuration { // Push start-tag (cost 0)
StartTags = oldStartTags.Push(tag),
Document = oldDocument.Push(tag),
Cost = oldCost,
});
}
else if (tag != null && tag.IsEndTag)
{
newConfigs.Add(new Configuration { // Ignore (cost 1)
StartTags = oldStartTags,
Document = oldDocument.Push(StartTagPlaceholder).Push(tag),
Cost = oldCost + 1,
});
if (!oldStartTags.IsEmpty && oldStartTags.Peek().Name != tag.Name)
{
newConfigs.Add(new Configuration { // Pop 1 item (cost 1) - not mathcing
StartTags = oldStartTags.Pop(),
Document = oldDocument.Push(tag),
Cost = oldCost + 1,
});
}
int popedCount = 0;
var startTags = oldStartTags;
var doc = oldDocument;
foreach (AXmlTag poped in oldStartTags)
{
popedCount++;
if (poped.Name == tag.Name)
{
newConfigs.Add(new Configuration { // Pop 'x' items (cost x-1) - last one is matching
StartTags = startTags.Pop(),
Document = doc.Push(tag),
Cost = oldCost + popedCount - 1,
});
}
startTags = startTags.Pop();
doc = doc.Push(EndTagPlaceholder);
}
}
else
{
// Empty tag or other tag type or text or properly nested element
newConfigs.Add(new Configuration { // Ignore (cost 0)
StartTags = oldStartTags,
Document = oldDocument.Push(obj),
Cost = oldCost,
});
}
}
// Log("New configurations:" + newConfigs.ToString());
Configurations bestNewConfigurations = new Configurations(
newConfigs.Values.OrderBy(v => v.Cost).Take(maxConfigurationCount)
);
// AXmlParser.Log("Best new configurations:" + bestNewConfigurations.ToString());
return(bestNewConfigurations);
}
AXmlElement ReadElement(IEnumerator <AXmlObject> objStream)
{
AXmlElement element = new AXmlElement();
element.IsProperlyNested = true;
// Read start tag
AXmlTag startTag = ReadSingleObject(objStream) as AXmlTag;
AXmlParser.DebugAssert(startTag != null, "Start tag expected");
AXmlParser.DebugAssert(startTag.IsStartOrEmptyTag || startTag == StartTagPlaceholder, "Start tag expected");
if (startTag == StartTagPlaceholder)
{
element.HasStartOrEmptyTag = false;
element.IsProperlyNested = false;
TagReader.OnSyntaxError(element, objStream.Current.StartOffset, objStream.Current.EndOffset,
"Matching openning tag was not found");
}
else
{
element.HasStartOrEmptyTag = true;
element.AddChild(startTag);
}
// Read content and end tag
if (startTag == StartTagPlaceholder || // Check first in case the start tag is null
element.StartTag.IsStartTag)
{
while (true)
{
AXmlTag currTag = objStream.Current as AXmlTag; // Peek
if (currTag == EndTagPlaceholder)
{
TagReader.OnSyntaxError(element, element.LastChild.EndOffset, element.LastChild.EndOffset,
"Expected '</{0}>'", element.StartTag.Name);
ReadSingleObject(objStream);
element.HasEndTag = false;
element.IsProperlyNested = false;
break;
}
else if (currTag != null && currTag.IsEndTag)
{
if (element.HasStartOrEmptyTag && currTag.Name != element.StartTag.Name)
{
TagReader.OnSyntaxError(element, currTag.StartOffset + 2, currTag.StartOffset + 2 + currTag.Name.Length,
"Expected '{0}'. End tag must have same name as start tag.", element.StartTag.Name);
}
element.AddChild(ReadSingleObject(objStream));
element.HasEndTag = true;
break;
}
AXmlObject nested = ReadTextOrElement(objStream);
if (nested is AXmlElement)
{
if (!((AXmlElement)nested).IsProperlyNested)
{
element.IsProperlyNested = false;
}
element.AddChildren(Split((AXmlElement)nested).ToList());
}
else
{
element.AddChild(nested);
}
}
}
else
{
element.HasEndTag = false;
}
element.StartOffset = element.FirstChild.StartOffset;
element.EndOffset = element.LastChild.EndOffset;
AXmlParser.Assert(element.HasStartOrEmptyTag || element.HasEndTag, "Must have at least start or end tag");
AXmlParser.Log("Constructed {0}", element);
trackedSegments.AddParsedObject(element, null); // Need all elements in cache for offset tracking
return(element);
}
