//private static bool InvalidName(string name, params char[] alsoValid) {
// if (name == "?xml") return false;
// if (name.Length == 0) return true;
// for (int i = 0; i < name.Length; i++) {
// char c = name[i];
// if (i == 0) {
// if (!IsLetter(c)) return true;
// } else if (!IsLetterOrDigit(c) && (alsoValid == null || !alsoValid.Contains(c)))
// return true;
// }
// return false;
//}
private void ReadTag()
{
var block = ReadTagName();
bool closer = false;
if (block.Text.Length == 0 && block.Last == '/')
{
closer = true;
block = ReadTagName();
}
var tagName = stripPrefix(KeepTagCase ? block.Text : block.Text.ToLower());
if (block.Text.Length > 0 && block.Text[0] == '!')
{
if (block.Text.Left(3) == "!--")
{
if (block.Last == '>' && block.Text.EndsWith("--"))
{
if (!RemoveComments)
{
Out("<!--");
block.Text = block.Text.Substring(3);
if (block.Text.EndsWith("--"))
{
block.Text = block.Text.Substring(0, block.Text.Length - 2);
}
Out(block.Text.TrimEnd('-').Replace("--", " "));
Out("-->");
}
}
else
{
var comment = ReadUntil("-->");
if (!RemoveComments && comment.Length >= 3)
{
Out("<!--");
Out((block.Text.Substring(3) + block.Last + comment.Substring(0, comment.Length - 3)).TrimEnd('-').Replace("--", " "));
Out("-->");
}
}
}
else
{
//if (next.text.StartsWith("!DOCTYPE html", StringComparison.OrdinalIgnoreCase)) enforceHtmlElement = true;
if (block.Last != '>')
{
block = ReadUntil('>'); // ignore this, doctypes and such
}
}
Next = ReadText;
}
else if (tagName.Length == 0 && block.Last == '?')
{
string text = ReadUntil("?>");
//if (enforceHtmlElement && tagName.StartsWith("?xml"))
// enforceHtmlElement = false;
////if (openTags.Count == 0 && !hasXmlDeclaration) {
//// Out('<' + tagName + ' ' + text.TrimStart());
//// enforceHtmlElement = false;
//// hasXmlDeclaration = true;
////}
Next = ReadText;
return;
}
else if (tagName.Length == 0 || block.Last == '<' || !IsLetter(tagName[0]) || tagName.Contains(':'))
{
if (OpenTags.Count > 0)
{
Out(_LT);
Out(ToXml(block.Text, Options.EntitiesOnly));
if (block.Last == '<')
{
Next = ReadTag;
}
else if (block.Last == '&')
{
Next = ReadEntity;
}
else
{
if (block.Last == '>')
{
Out(_GT);
}
else
{
Out(block.Last);
}
Next = ReadText;
}
}
else
{
Next = ReadText;
}
}
else
{
if (closer)
{
if (tagName != "body" && tagName != "html") //we'll close these manually
{
var openerIndex = OpenTags.LastIndexOf(tagName);
Close(openerIndex);
}
Next = ReadText;
}
else
{
bool enabled = true;
bool selfClosing = _SelfClosingTags.Contains(tagName); // These are handled manually
var attrs = new Dictionary <string, string>();
foreach (var rule in _NestingRules)
{
if (rule[0].Contains(tagName))
{
AutoClose(rule[1], rule[2]);
break;
}
}
//if (tagName == "li") {
// AutoClose(new[] { "ul", "ol" }, new[] { "li" });
//} else if (tagName == "tr") {
// AutoClose(new[] { "table", "thead", "tbody" }, new[] { "td", "th", "tr" });
//} else if (tagName == "td" || tagName == "th") {
// AutoClose(new[] { "table", "thead", "tbody" }, new[] { "td", "th" });
//} else if (tagName == "p" || tagName == "blockquote" || tagName == "ul" || tagName == "ol") {
// AutoClose(new[] { "div", "table", "body" }, new[] { "p", "blockquote", "ul", "ol" });
//} else if (tagName == "frame") {
// AutoClose(new[] { "frameset" }, new[] { "frame" });
//} else if (tagName == "frameset") {
// AutoClose(new[] { "frame" }, new[] { "frame" });
//}
//if (!EnforceHtmlElement && OpenTags.Count == 0 && _CommonTags.Contains(tagName))
// EnforceHtmlElement = true;
if (EnforceHtmlElement)
{
if (tagName != "html" && OpenTags.Count == 0)
{
OpenTags.Add("html");
Out("<html>");
}
else if (tagName == "html" && OpenTags.Count > 0)
{
enabled = false;
}
else if (tagName == "body" && OpenTags.Contains("body"))
{
enabled = false;
}
if (OpenTags.Count > 0 && tagName != "body" && tagName != "head" && !OpenTags.Contains("head") && !OpenTags.Contains("body"))
{
Out("<body>");
OpenTags.Add("body");
}
}
if (enabled)
{
if (!selfClosing && tagName != "script" && tagName != "style")
{
OpenTags.Add(tagName);
}
Out("<" + tagName);
NumTagsWritten++;
}
while (block.Last != '>')
{
ReadWhileWhitespace();
block = ReadAttrName();
if (block.Text.Length == 0 && block.Last == 0)
{
break;
}
var attrName = KeepTagCase ? block.Text : block.Text.ToLower();
attrName = stripPrefix(attrName);
if (attrName.Length == 0 ||
!IsLetter(attrName[0]) ||
attrName.Contains(':'))
{
continue;
}
ReadWhileWhitespace();
char?c = Peek();
if (c == null)
{
break;
}
var attrValue = string.Empty;
if (block.Last == '=' || c == '=')
{
if (c == '=')
{
Input.Read();
}
ReadWhileWhitespace();
c = Peek();
if (c == null)
{
break;
}
if (c == '\'')
{
Input.Read();
block = Read(Modes.attrValueTick);
attrValue = '\'' + block.Text.Trim() + '\'';
}
else if (c == '"')
{
Input.Read();
block = Read(Modes.attrValueQuote);
attrValue = '"' + block.Text.Trim() + '"';
}
else
{
block = Read(Modes.attrValue);
attrValue = '"' + block.Text + '"';
}
}
else
{
attrValue = '"' + attrName + '"';
}
if (enabled && !(RemoveXmlns && attrName == "xmlns"))
{
attrValue = ToXml(attrValue, Options.EntitiesOnly);
if (attrs.ContainsKey(attrName))
{
attrs[attrName] = attrValue;
}
else
{
attrs.Add(attrName, attrValue);
}
}
}
foreach (var attr in attrs)
{
Out(' ' + attr.Key + '=' + attr.Value);
}
if (enabled && selfClosing)
{
Out('/');
}
if (enabled)
{
Out('>');
}
if (tagName == "script" || tagName == "style")
{
ReadWhileWhitespace();
var text = ReadUntil("</" + tagName, StringComparison.OrdinalIgnoreCase);
if (text.Length >= tagName.Length + 2)
{
text = text.Substring(0, text.Length - tagName.Length - 2).TrimEnd();
ReadUntil('>');
}
if (text.Length > 0)
{
var i = text.IndexOf("<![CDATA[");
if (i == -1)
{
text = "/*<![CDATA[*/" + text;
}
else
{
var part = text.Substring(0, i);
text = ToXml(part, Options.EntitiesOnly) + text.Substring(i);
}
i = text.IndexOf("]]>");
if (i == -1)
{
text = text + "/*]]>*/";
}
else
{
var part = text.Substring(i + 3);
text = text.Substring(0, i + 3) + ToXml(part, Options.EntitiesOnly);
}
}
if (enabled)
{
Out(text + "</" + tagName + ">");
}
}
Next = ReadText;
}
}
}
protected bool IsClosed(string tag)
=> openFixed
? !OpenTags.Contains(tag)
: ClosedTags.Contains(tag);