匹配所有js代码而不是注释的正则表达式

The following regex is supposed to match all js:

• conditional js (OK: already working)
• add js script (OK: already working)
• in line js (OK: already working)
• but not commented Js ( need to be implemented )

I would like to exclude all js that is commented ( but preserve the one that inside a conditional comment

Here the current regex:

^<!--(\[if lt IE.*?\])>[\s\S]*?<script(\b[^>]*?>)([\s\S]*?)<\/script>[\s\S]*?<!\[endif\]-->$|^<script(\b[^>]*?>)([\s\S]*?)<\/script>$

So skip the match for this kind of text:

<!--
<script type="text/javascript">
SOME JS
</script> 
-->

OR

<!--
<script src='...' type="text/javascript"></script> 
-->

Conditional comment are usually in this form:

<!--[if lt IE]>
<script type="text/javascript">
Some JS
</script>
<![endif]-->

Is it possible to do all the above in one regex ?
Since this is my first regex, if you have any other suggestion is welcome.

Thanks