/// <param name="pos">找到Tag之后，Tag的起始位置</param>
public static XTag FindTag(string tagName, string text, ref int pos)
{
Regex reg1 = new Regex("<" + tagName + "[\\s]");
Regex reg2 = new Regex("<" + tagName + "[\\s\\S]*?>");
Match m1 = reg1.Match(text, pos);
if (m1.Success)
{
Match m2 = reg2.Match(text, m1.Index);
XTag tag = new XTag(text, m2);
pos = m2.Index;
return(tag);
}
return(null);
}
public XFragment(string text, int start)
{
if (text[start] != '<')
{
throw new XMLException("XFragment Error:Unexpect Start.");
}
indexInSource = start;
Regex reg_tag = new Regex("<[\\s\\S]*?>");
int count = 0, pos = start;
Match m;
do
{
m = reg_tag.Match(text, pos);
if (!m.Success)
{
new XMLException("XFragment Error:Unexpect end.");
}
XTag tag = new XTag(text, m);
if (tag.type == PartType.tag_start)
{
count++;
}
if (tag.type == PartType.tag_end)
{
count--;
}
if (m.Index > pos)
{
parts.Add(new XText(text.Substring(pos, m.Index - pos)));
}
parts.Add(tag);
pos = m.Index + tag.originalText.Length;
}while (count > 0);
originalLength = m.Index - start + m.Value.Length;
root = new XELement(this, 0);
}