<p>Doug McCune had created something that was exactly what I needed (<a href="http://dougmccune.com/blog/2007/05/10/analyze-your-actionscript-code-with-this-apollo-app/" rel="nofollow noreferrer">http://dougmccune.com/blog/2007/05/10/analyze-your-actionscript-code-with-this-apollo-app/</a>) but alas - it was for AIR beta 2.  I just would like some tool that I can run that would provide some decent metrics...any idea's?</p>

To get a rough estimate, you could always run
```
find . -type f -exec cat {} \; | wc -l
```
in the project directory if you're using Mac OS X.