On Greg Bewaver's blog today, there's this new post providing some information about a new PECL extension for DocBlock creation/parsing he's created.

I just released pecl at pecl.php.net, my first PHP extension. docblock is to phpDocumentor docblocks what the tokenizer extension is to PHP itself. It takes a docblock as an argument, and returns an array of tokens. Parsing docblocks in PHP has always been a major pain, and also very difficult to do correctly, because certain kinds of code simply won't parse correctly without a proper scanner (such as docblocks containing and @fopen - phpDocumentor 1.3.x will try to parse the "@fopen" tag).

He notes it's only really been tested with PHP 5.1, but has shown some promising results so far. And, for users of phpDocumentor, he also provides a quick update on the status of that project as well...