| public GetDataUnit ( int i ) : DataUnit | ||
| i | int | The index to use. |
| return | DataUnit | |
public void TestSimple()
{
var load = new LoadWebPage(null);
WebPage page = load.Load("a<b>b</b>c");
Assert.AreEqual(5, page.Data.Count);
// Index 0 (text)
var textDu = (TextDataUnit)page.GetDataUnit(0);
Assert.AreEqual("a", textDu.ToString());
// Index 1 (tag)
var tagDu = (TagDataUnit)page.GetDataUnit(1);
Assert.AreEqual("b", tagDu.Tag.Name);
Assert.AreEqual("<b>", tagDu.Tag.ToString());
Assert.AreEqual(Tag.Type.Begin, tagDu.Tag.TagType);
// Index 2 (text)
textDu = (TextDataUnit)page.GetDataUnit(2);
Assert.AreEqual("b", textDu.ToString());
// Index 3 (tag)
tagDu = (TagDataUnit)page.GetDataUnit(3);
Assert.AreEqual("b", tagDu.Tag.Name);
Assert.AreEqual(Tag.Type.End, tagDu.Tag.TagType);
// Index 4 (text)
textDu = (TextDataUnit)page.GetDataUnit(4);
Assert.AreEqual("c", textDu.ToString());
}
/// <summary>
/// Find the end tag that lines up to the beginning tag.
/// </summary>
/// <param name="index">The index to start the search on. This specifies
/// the starting data unit.</param>
/// <param name="tag">The beginning tag that we are seeking the end tag
/// for.</param>
/// <returns>The index that the ending tag was found at. Returns -1
/// if not found.</returns>
protected int FindEndTag(int index, Tag tag)
{
int depth = 0;
int count = index;
while (count < _page.getDataSize())
{
DataUnit du = _page.GetDataUnit(count);
if (du is TagDataUnit)
{
Tag nextTag = ((TagDataUnit)du).Tag;
if (String.Compare(tag.Name, nextTag.Name, true) == 0)
{
if (nextTag.TagType == Tag.Type.End)
{
if (depth == 0)
{
return(count);
}
depth--;
}
else if (nextTag.TagType == Tag.Type.Begin)
{
depth++;
}
}
}
count++;
}
return(-1);
}