Parser: Add callback support for unknown "tags"

parser.cpp

@@ -116,12 +116,13 @@ std::string Parser::processLink(const PageDao &pageDao, UrlProvider &urlProvider
 	return htmllink.render();
 }
 
-std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const std::string &content) const
+std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const std::string &content,
+						  const std::function<std::string(std::string_view, std::string_view)> &callback) const
 {
 	std::string result;
 	// we don't care about commands, but we nevertheless replace them with empty strings
 	std::regex tagfinder(
-		R"(\[(b|i|u|li||ul|ol|link|wikilink|h\d|cmd:rename|cmd:redirect|cmd:pagetitle|category)*?\]((\s|\S)*?)\[/\1])");
+		R"(\[(b|i|u|li||ul|ol|link|wikilink|h\d|cmd:rename|cmd:redirect|cmd:pagetitle|category|dynamic:postlist)*?\]((\s|\S)*?)\[/\1])");
 	result = utils::regex_callback_replacer(
 		tagfinder, content,
 		[&](std::smatch &match)
@@ -129,7 +130,7 @@ std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const s
 			std::string tag = match.str(1);
 			std::string content = match.str(2);
 			std::string justreplace[] = {"b", "i", "u", "ul", "li", "ol"};
-			content = parse(pagedao, provider, content);
+			content = parse(pagedao, provider, content, callback);
 			if(std::find(std::begin(justreplace), std::end(justreplace), tag) != std::end(justreplace))
 			{
 				return "<" + tag + ">" + content + "</" + tag + ">";
@@ -144,7 +145,7 @@ std::string Parser::parse(const PageDao &pagedao, UrlProvider &provider, const s
 			{
 				return "<" + tag + " id='" + content + "'>" + content + "</" + tag + ">";
 			}
-			return std::string("");
+			return callback(tag, content);
 		});
 	result = utils::strreplace(result, "\r\n", "<br>");
 	return result;