[TxMt] Command Help for templates

I have a variable "myPackage" in my template. I would like to replace that with the directory of the template.

For example if I created a file at /project/include/com/kidbombay/Myfile.as I would like to replace all instances of myPackage in my template with "com.kidbombay"

Basically the steps are 1. Is the file located inside a "include" directory? If yes continue. 2. Parse all folders down from the include level. "include/com/client/project" would return "com/client/project" 3. Replace the slashes with dots. "com/client/project" becomes com.client.project. 4. Replaces all instances of myPackage in my template with "com.client.project"

How would I do this? I am not very familiar with perl.

Thanks!