I develop websites using the Perl Mason framework. This allows HTML tags to be freely mixed with perl code. The perl sections are normally embedded within <% .. %> markers, or whole sections are enabled between <%perl> … </%perl> markers.
As of now, this syntax confuses the EPIC plugin. However, it follows a very similar markup strategy to embedded java and embedded PHP, and so shouldn't be too hard to implement. Are there any plans to make EPIC understand this structure?