public override Tag Init(string text)
{
if (text.EndsWith("/>"))
{
mode = OpeningClosingMode.SelfClosed;
}
else if (text.StartsWith("</"))
{
mode = OpeningClosingMode.Closing;
}
else
{
mode = OpeningClosingMode.Opening;
}
htmlTag = Regex.Match(text, "</?([a-z0-9]+)[ />]", RegexOptions.IgnoreCase).Groups[1].Value;
if (mode == OpeningClosingMode.Closing)
{
Text = $"</{htmlTag}>";
return(this);
}
if (mode == OpeningClosingMode.Opening)
{
text = $"{text}</{htmlTag}>"; // close tag for xelement parsing
}
var parsed = XElement.Parse(text);
var validAttrs = validTags[htmlTag];
// remove invalid attributes
foreach (var attr in parsed.Attributes().ToList())
{
var name = attr.Name.ToString();
if (!validAttrs.Contains(name))
{
parsed.SetAttributeValue(attr.Name, null);
}
if ((name == "src" || name == "href") && !attr.Value.IsValidLinkOrRelativeUrl(name == "src"))
{
parsed.SetAttributeValue(attr.Name, null);
}
}
text = parsed.ToString(); // turn back to string
if (mode == OpeningClosingMode.Opening)
{
text = text.Substring(0, text.Length - 3 - htmlTag.Length);
}
Text = text;
return(this);
}
public override Tag Init(string text) {
if (text.EndsWith("/>")) mode = OpeningClosingMode.SelfClosed;
else if (text.StartsWith("</")) mode = OpeningClosingMode.Closing;
else mode = OpeningClosingMode.Opening;
htmlTag = Regex.Match(text, "</?([a-z0-9]+)[ />]", RegexOptions.IgnoreCase).Groups[1].Value;
if (mode == OpeningClosingMode.Closing)
{
Text = $"</{htmlTag}>";
return this;
}
if (mode == OpeningClosingMode.Opening) text = $"{text}</{htmlTag}>"; // close tag for xelement parsing
var parsed = XElement.Parse(text);
var validAttrs = validTags[htmlTag];
// remove invalid attributes
foreach (var attr in parsed.Attributes().ToList())
{
var name = attr.Name.ToString();
if (!validAttrs.Contains(name)) parsed.SetAttributeValue(attr.Name, null);
if ((name == "src" || name == "href") && !attr.Value.IsValidLinkOrRelativeUrl()) parsed.SetAttributeValue(attr.Name, null);
}
text = parsed.ToString(); // turn back to string
if (mode == OpeningClosingMode.Opening) text = text.Substring(0, text.Length - 3 - htmlTag.Length);
Text = text;
return this;
}
