Subscript is a very simple stack-based scripting language. The name is short for "Substitution Script" since I made it specifically for that purpose. Given a template page, and several content pages, where a phrase such as "%CONTENT_GOES_HERE%" in the template, I wanted to be able to run a single script that would take the template page, replace that phrase with each of the content pages, and save the results. Essentially, I only wanted to automate the process of copying and pasting so that I did not have to do it by hand.
The Subscript site is currently incomplete... this and the Functions page are the only pages for now. The others will arrive soon. If you want to download it now or have any other questions, feel free to email me.