template_bv: Template engine based on token splitting not regex

Template_bv is a minimalist templating engine that is extremely fast, does not use regular expressions and can easily be extended.

The main idea is based on "splitting" a predefined template at given delimiter marks.

The class splits the template string using the PHP explode function and a configurable token string to find where template variable placeholders are located. By using this method we don't need to use regular expression to locate the template variables.

This template engine would suite someone who likes to embed HTML inside of PHP and not the other way around.

It can assign values to be replaced by placeholder marks, as well as, define values to insert before (prepend) or after (append) those marks.