diff options
Diffstat (limited to 'docs/HtmlAgilityPack/HtmlAttribute.cs')
| -rw-r--r-- | docs/HtmlAgilityPack/HtmlAttribute.cs | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/docs/HtmlAgilityPack/HtmlAttribute.cs b/docs/HtmlAgilityPack/HtmlAttribute.cs new file mode 100644 index 00000000000..7a3de047bea --- /dev/null +++ b/docs/HtmlAgilityPack/HtmlAttribute.cs @@ -0,0 +1,260 @@ +// HtmlAgilityPack V1.0 - Simon Mourier <simon underscore mourier at hotmail dot com>
+
+#region
+
+using System;
+using System.Diagnostics;
+
+#endregion
+
+namespace HtmlAgilityPack
+{
+ /// <summary>
+ /// Represents an HTML attribute.
+ /// </summary>
+ [DebuggerDisplay("Name: {OriginalName}, Value: {Value}")]
+ public class HtmlAttribute : IComparable
+ {
+ #region Fields
+
+ private int _line;
+ internal int _lineposition;
+ internal string _name;
+ internal int _namelength;
+ internal int _namestartindex;
+ internal HtmlDocument _ownerdocument; // attribute can exists without a node
+ internal HtmlNode _ownernode;
+ private AttributeValueQuote _quoteType = AttributeValueQuote.DoubleQuote;
+ internal int _streamposition;
+ internal string _value;
+ internal int _valuelength;
+ internal int _valuestartindex;
+
+ #endregion
+
+ #region Constructors
+
+ internal HtmlAttribute(HtmlDocument ownerdocument)
+ {
+ _ownerdocument = ownerdocument;
+ }
+
+ #endregion
+
+ #region Properties
+
+ /// <summary>
+ /// Gets the line number of this attribute in the document.
+ /// </summary>
+ public int Line
+ {
+ get { return _line; }
+ internal set { _line = value; }
+ }
+
+ /// <summary>
+ /// Gets the column number of this attribute in the document.
+ /// </summary>
+ public int LinePosition
+ {
+ get { return _lineposition; }
+ }
+
+ /// <summary>
+ /// Gets the qualified name of the attribute.
+ /// </summary>
+ public string Name
+ {
+ get
+ {
+ if (_name == null)
+ {
+ _name = _ownerdocument._text.Substring(_namestartindex, _namelength);
+ }
+ return _name.ToLower();
+ }
+ set
+ {
+ if (value == null)
+ {
+ throw new ArgumentNullException("value");
+ }
+ _name = value;
+ if (_ownernode != null)
+ {
+ _ownernode._innerchanged = true;
+ _ownernode._outerchanged = true;
+ }
+ }
+ }
+
+ /// <summary>
+ /// Name of attribute with original case
+ /// </summary>
+ public string OriginalName
+ {
+ get { return _name; }
+ }
+
+ /// <summary>
+ /// Gets the HTML document to which this attribute belongs.
+ /// </summary>
+ public HtmlDocument OwnerDocument
+ {
+ get { return _ownerdocument; }
+ }
+
+ /// <summary>
+ /// Gets the HTML node to which this attribute belongs.
+ /// </summary>
+ public HtmlNode OwnerNode
+ {
+ get { return _ownernode; }
+ }
+
+ /// <summary>
+ /// Specifies what type of quote the data should be wrapped in
+ /// </summary>
+ public AttributeValueQuote QuoteType
+ {
+ get { return _quoteType; }
+ set { _quoteType = value; }
+ }
+
+ /// <summary>
+ /// Gets the stream position of this attribute in the document, relative to the start of the document.
+ /// </summary>
+ public int StreamPosition
+ {
+ get { return _streamposition; }
+ }
+
+ /// <summary>
+ /// Gets or sets the value of the attribute.
+ /// </summary>
+ public string Value
+ {
+ get
+ {
+ if (_value == null)
+ {
+ _value = _ownerdocument._text.Substring(_valuestartindex, _valuelength);
+ }
+ return _value;
+ }
+ set
+ {
+ _value = value;
+ if (_ownernode != null)
+ {
+ _ownernode._innerchanged = true;
+ _ownernode._outerchanged = true;
+ }
+ }
+ }
+
+ internal string XmlName
+ {
+ get { return HtmlDocument.GetXmlName(Name); }
+ }
+
+ internal string XmlValue
+ {
+ get { return Value; }
+ }
+
+ /// <summary>
+ /// Gets a valid XPath string that points to this Attribute
+ /// </summary>
+ public string XPath
+ {
+ get
+ {
+ string basePath = (OwnerNode == null) ? "/" : OwnerNode.XPath + "/";
+ return basePath + GetRelativeXpath();
+ }
+ }
+
+ #endregion
+
+ #region IComparable Members
+
+ /// <summary>
+ /// Compares the current instance with another attribute. Comparison is based on attributes' name.
+ /// </summary>
+ /// <param name="obj">An attribute to compare with this instance.</param>
+ /// <returns>A 32-bit signed integer that indicates the relative order of the names comparison.</returns>
+ public int CompareTo(object obj)
+ {
+ HtmlAttribute att = obj as HtmlAttribute;
+ if (att == null)
+ {
+ throw new ArgumentException("obj");
+ }
+ return Name.CompareTo(att.Name);
+ }
+
+ #endregion
+
+ #region Public Methods
+
+ /// <summary>
+ /// Creates a duplicate of this attribute.
+ /// </summary>
+ /// <returns>The cloned attribute.</returns>
+ public HtmlAttribute Clone()
+ {
+ HtmlAttribute att = new HtmlAttribute(_ownerdocument);
+ att.Name = Name;
+ att.Value = Value;
+ return att;
+ }
+
+ /// <summary>
+ /// Removes this attribute from it's parents collection
+ /// </summary>
+ public void Remove()
+ {
+ _ownernode.Attributes.Remove(this);
+ }
+
+ #endregion
+
+ #region Private Methods
+
+ private string GetRelativeXpath()
+ {
+ if (OwnerNode == null)
+ return Name;
+
+ int i = 1;
+ foreach (HtmlAttribute node in OwnerNode.Attributes)
+ {
+ if (node.Name != Name) continue;
+
+ if (node == this)
+ break;
+
+ i++;
+ }
+ return "@" + Name + "[" + i + "]";
+ }
+
+ #endregion
+ }
+
+ /// <summary>
+ /// An Enum representing different types of Quotes used for surrounding attribute values
+ /// </summary>
+ public enum AttributeValueQuote
+ {
+ /// <summary>
+ /// A single quote mark '
+ /// </summary>
+ SingleQuote,
+ /// <summary>
+ /// A double quote mark "
+ /// </summary>
+ DoubleQuote
+ }
+}
\ No newline at end of file |