public override void ExitEmptyElement(HTMLParser.EmptyElementContext ctx)
{
var textContent = new StringBuilder();
textContent.Append("<");
var tagNameCtx = ctx.htmlTagName();
if (tagNameCtx == null)
{
return;
}
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("/>");
textContent.Append("\n");
FilteredPut(ctx, textContent.ToString());
}
/// <summary>
/// Exit a parse tree produced by the <c>emptyElement</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 ExitEmptyElement([NotNull] HTMLParser.EmptyElementContext context)
{
}
