static Attr DecodeAttr(HtmlTokenizer.Attr attrRaw, bool sanitize)
{
var name = attrRaw.Name;
var isValid = HtmlAttrs.AttrNames.ContainsKey(name);
if (isValid && sanitize)
{
name = name.ToLower();
}
var val = attrRaw.Val != null?HtmlCharCoding.Decode(attrRaw.Val) : null;
return(new Attr(isValid, name, val));
}
static string EncodeTag(Tag tag, Encoding encoding)
{
var sb = new StringBuilder();
var padAttr = false;
foreach (var attr in tag.Attrs)
{
if (padAttr)
{
padAttr = false;
sb.Append(' ');
}
if (attr.Val == null)
{
sb.Append(attr.Name);
padAttr = true;
continue;
}
bool leftWsesTrimmed;
bool rightWsesTrimmed;
if (attr.Val != "" && attr.Val[0] != '"' && attr.Val[0] != '\'' && !attr.Val.HasHtmlWhiteSpaceOrGt())
{
sb.AppendFormat("{0}={1}", attr.Name, HtmlCharCoding.Encode(attr.Val, encoding, '>', false, out leftWsesTrimmed, out rightWsesTrimmed));
padAttr = true;
continue;
}
sb.AppendFormat("{0}={1}", attr.Name, (new[] {
string.Format("\"{0}\"", HtmlCharCoding.Encode(attr.Val, encoding, '"', false, out leftWsesTrimmed, out rightWsesTrimmed)),
attr.Val.IndexOf('"') >= 0 ? string.Format("'{0}'", HtmlCharCoding.Encode(attr.Val, encoding, '\'', false, out leftWsesTrimmed, out rightWsesTrimmed)) : null
})
.Where(x => x != null).OrderBy(x => x.Length).First());
padAttr = false;
}
var attrsHtml = sb.ToString();
return(string.Format("<{0}{1}{2}>", tag.Name, attrsHtml != "" && attrsHtml != "/" ? " " : "", attrsHtml));
}
static string EncodeText(Text text, Encoding encoding, bool trimWses, out bool leftWsesTrimmed, out bool rightWsesTrimmed)
{
return(HtmlCharCoding.Encode(text.Val, encoding, '<', trimWses, out leftWsesTrimmed, out rightWsesTrimmed));
}
static Text DecodeText(string textRaw)
{
return(new Text(HtmlCharCoding.Decode(textRaw)));
}