/// <summary>
/// Find Missing Tag in HTML Content
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static string FindMissingTag(string source)
{
ArrayList aryLst = new ArrayList();
string error = string.Empty;
var openTag = RegexSplitter.OpenTagSplit(source); // <B>, <C>
var closeTag = RegexSplitter.CloseTagSplit(source); // </B>, </C>
if (openTag != null)
{
foreach (var tagO in openTag)
{
if (tagO.StartsWith("<") == true && tagO.EndsWith(">"))
{
aryLst.Add(tagO);
}
}
}
if (closeTag != null)
{
foreach (var tagC in closeTag)
{
if (tagC.StartsWith("</") == true && tagC.EndsWith(">"))
{
if (aryLst.Contains(tagC.Replace("</", "<")))
{
aryLst.Remove(tagC.Replace("</", "<"));
}
else
{
aryLst.Add(tagC);
}
}
}
}
if (aryLst.Count > 0)
{
// Missing Opening Tag
if (aryLst[0].ToString().Contains("/"))
{
error = "Expected # found " + aryLst[0].ToString() + " ";
}
else // Missing Closing Tag
{
error = "Expected " + aryLst[0].ToString().Substring(0, 1) + "/" + aryLst[0].ToString().Substring(1) + " found #";
}
}
return(error);
}
/// <summary>
/// Find the Mis Match order or tag for HTML String
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static string FindMisMatchOrder(string source)
{
Stack stck = new Stack();
string error = string.Empty;
var openTag = RegexSplitter.OpenTagSplit(source); // <B>, <C>
var closeTag = RegexSplitter.CloseTagSplit(source); // </B>, </C>
if (openTag != null)
{
foreach (var tagO in openTag)
{
if (tagO.StartsWith("<") == true && tagO.EndsWith(">"))
{
stck.Push(tagO.Replace("<", string.Empty).Replace(">", string.Empty));
}
}
}
if (closeTag != null)
{
foreach (var tagC in closeTag)
{
if (tagC.StartsWith("</") == true && tagC.EndsWith(">"))
{
string tagCString = tagC.Replace("</", string.Empty).Replace(">", string.Empty);
if (tagCString == stck.Peek().ToString())
{
stck.Pop();
if (stck.Count == 0) // if stack empty then break the loop
{
break;
}
}
else
{
error = "Expected </" + stck.Peek().ToString() + "> found </" + tagCString + "> ";
}
}
if (error != string.Empty)
{
break;
}
}
}
return(error);
}
