message: Allow 0-9 in HTML regex
diff: @@ -171,7 +171,7 @@ private:
  };
  -std::wregex RE_HTML_MARKUP(LR"((<\/?[a-zA-Z:-]+(\s+[-:\w]+(=([-:\w+]|"[^"]*"|'[^']*'))?)*\s*\/?>)|(&[^ ;]+;))",
  +std::wregex RE_HTML_MARKUP(LR"((<\/?[a-zA-Z0-9:-]+(\s+[-:\w]+(=([-:\w+]|"[^"]*"|'[^']*'))?)*\s*\/?>)|(&[^ ;]+;))",
  std::regex_constants::ECMAScript | std::regex_constants::optimize);
  // php-format per http://php.net/manual/en/function.sprintf.php plus positionals
  