SharpDevelop/ICSharpCode.NRefactory.Xml/InternalDocument.cs

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// 
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// 
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// 
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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using System;

namespace ICSharpCode.NRefactory.Xml
{
	abstract class InternalObject
	{
		internal int StartRelativeToParent;
		internal int Length;
		internal InternalSyntaxError[] SyntaxErrors;
		internal InternalObject[] NestedObjects;
		
		internal InternalObject SetStartRelativeToParent(int newStartRelativeToParent)
		{
			if (newStartRelativeToParent == StartRelativeToParent)
				return this;
			InternalObject obj = (InternalObject)MemberwiseClone();
			obj.StartRelativeToParent = newStartRelativeToParent;
			return obj;
		}
		
		public abstract AXmlObject CreatePublicObject(AXmlObject parent, int parentStartOffset);
	}
	
	sealed class InternalText : InternalObject
	{
		internal TextType Type;
		internal bool ContainsOnlyWhitespace;
		internal string Value;
		
		public override AXmlObject CreatePublicObject(AXmlObject parent, int parentStartOffset)
		{
			return new AXmlText(parent, parentStartOffset + StartRelativeToParent, this);
		}
	}
	
	sealed class InternalTag : InternalObject
	{
		internal string OpeningBracket;
		internal int RelativeNameStart;
		internal string Name;
		internal string ClosingBracket;
		
		/// <summary> True if tag starts with "&lt;" </summary>
		public bool IsStartOrEmptyTag       { get { return OpeningBracket == "<"; } }
		/// <summary> True if tag starts with "&lt;/" </summary>
		public bool IsEndTag                { get { return OpeningBracket == "</"; } }
		/// <summary> True if tag starts with "&lt;?" </summary>
		public bool IsProcessingInstruction { get { return OpeningBracket == "<?"; } }
		/// <summary> True if tag starts with "&lt;!--" </summary>
		public bool IsComment               { get { return OpeningBracket == "<!--"; } }
		/// <summary> True if tag starts with "&lt;![CDATA[" </summary>
		public bool IsCData                 { get { return OpeningBracket == "<![CDATA["; } }
		/// <summary> True if tag starts with one of the DTD starts </summary>
		public bool IsDocumentType          { get { return AXmlTag.DtdNames.Contains(OpeningBracket); } }
		/// <summary> True if tag starts with "&lt;!" </summary>
		public bool IsUnknownBang           { get { return OpeningBracket == "<!"; } }
		
		public override AXmlObject CreatePublicObject(AXmlObject parent, int parentStartOffset)
		{
			return new AXmlTag(parent, parentStartOffset + StartRelativeToParent, this);
		}
	}
	
	struct InternalSyntaxError
	{
		internal readonly int RelativeStart;
		internal readonly int RelativeEnd;
		internal readonly string Description;
		
		public InternalSyntaxError(int relativeStart, int relativeEnd, string description)
		{
			this.RelativeStart = relativeStart;
			this.RelativeEnd = relativeEnd;
			this.Description = description;
		}
	}
	
	class InternalAttribute : InternalObject
	{
		internal string Name;
		internal int EqualsSignLength; // length of equals sign including the surrounding whitespace
		internal string Value;
		
		public override AXmlObject CreatePublicObject(AXmlObject parent, int parentStartOffset)
		{
			return new AXmlAttribute(parent, parentStartOffset + StartRelativeToParent, this);
		}
	}
}