/// <summary>
/// Exit a parse tree produced by the <c>pairElement</c>
/// labeled alternative in <see cref="HTMLParser.htmlElement"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitPairElement([NotNull] HTMLParser.PairElementContext context)
{
}
public override void ExitPairElement(HTMLParser.PairElementContext ctx)
{
var textContent = new StringBuilder();
textContent.Append("<");
var tagNameCtx = ctx.htmlTagName(0);
var tagNameNode = tagNameCtx?.TAG_NAME();
var tagNameText = tagNameNode?.GetText();
if (string.IsNullOrEmpty(tagNameText))
{
return;
}
//add this tag name to the list if its not already present
if (!_results.Tags2Attrs.ContainsKey(tagNameText))
{
_results.Tags2Attrs.Add(tagNameText, new List <string>());
}
var tagContents = new List <string> {
tagNameText
};
foreach (var attrCtx in ctx.htmlAttribute())
{
var attrText = MyTreeProperty.Get(attrCtx);
if (string.IsNullOrEmpty(attrText))
{
continue;
}
//add this tag's attributes if its not already present as-is
if (_results.Tags2Attrs[tagNameText].All(a => a != attrText))
{
_results.Tags2Attrs[tagNameText].Add(attrText);
}
tagContents.Add(attrText);
}
textContent.Append(string.Join(" ", tagContents));
textContent.Append(">");
var contentCtx = ctx.htmlContent();
if (contentCtx != null)
{
var contentsText = MyTreeProperty.Get(contentCtx);
if (!string.IsNullOrEmpty(contentsText))
{
textContent.Append(contentsText);
}
}
textContent.Append("</");
textContent.Append(tagNameText);
textContent.Append(">");
textContent.Append("\n");
FilteredPut(ctx, textContent.ToString());
}
