Microsoft.Html.Core.Tree.Nodes.ElementNode.GetPositionElement C# (CSharp) Method

        public virtual HtmlPositionType GetPositionElement(int position, out ElementNode element, out AttributeNode attribute) {
            element = null;
            attribute = null;

            // If start tag is not closed, consider end position to be inside it
            // so user can continue getting attribute intellisense, like in <a href=|<a ...></a>
            if (StartTag.Contains(position) || (position == StartTag.End && !StartTag.IsClosed)) {
                // If position is right at the start, it is actually before the tag (in parent's content), 
                // as if when caret position is like this: <table>|<tr></tr><table>
                if (position == StartTag.Start) {
                    element = this.Parent;
                    return HtmlPositionType.InContent;
                }

                if (position >= QualifiedNameRange.Start && position <= StartTag.QualifiedNameRange.End) {
                    element = this;
                    return HtmlPositionType.ElementName;
                }

                element = this;

                for (int i = 0; i < Attributes.Count; i++) {
                    var attrNode = Attributes[i];
                    bool hasClosingQuote = false;

                    var valueToken = attrNode.ValueToken;
                    hasClosingQuote = (valueToken != null) && (valueToken.CloseQuote != '\0');

                    if (position == attrNode.End && hasClosingQuote)
                        break;

                    if (position > attrNode.End)
                        continue;

                    if (position < attrNode.Start)
                        break;

                    if (attrNode.Contains(position) || (position == attrNode.End && !hasClosingQuote)) {
                        attribute = attrNode;
                        return attrNode.GetPositionType(position);
                    }
                }

                return HtmlPositionType.InStartTag;
            }

            if (!this.Contains(position))
                return HtmlPositionType.Undefined;

            for (int i = 0; i < this.Children.Count; i++) {
                var child = Children[i];

                if (position < child.Start)
                    break;

                if (child.Contains(position))
                    return child.GetPositionElement(position, out element, out attribute);
            }

            element = this;

            // If position is right at the start, it is actually before the end tag, 
            // like when caret is between opening and closing tags: <table>|<table>
            if (EndTag != null) {
                if (position == EndTag.Start)
                    return HtmlPositionType.InContent;

                if (EndTag.Contains(position))
                    return HtmlPositionType.InEndTag;
            }

            if (this.IsScriptBlock())
                return HtmlPositionType.InScriptBlock;

            if (this.IsStyleBlock())
                return HtmlPositionType.InStyleBlock;

            return HtmlPositionType.InContent;
        }