[intel352]

the outputfilter file replaces the php urls with the html counterparts, at the Smarty level.

i dunno if you've seen how other SEO mods work for x-cart, but DSEFU for instance, had edits for every template that referenced .php urls, which was a huge amount of work. I wanted to replace everything everywhere fairly easily, so the outputfilter parses the smarty templates before the content gets sent to the browser

the reference to "lofi" is where I attempt to cleanup for SE's, but that mode is optional, and only a part of the outputfilter.