Initiates object properties and sets default values.

Set up the next post and iterate current post index.

Parse a query string and set query type booleans.

Reparse the query vars.

Sets up the WordPress query by parsing query string.

Rewind the posts and reset post index.

Sets the value of a query variable.

Sets up the current post.

Core class used to implement a rewrite component API.

Constructor – Calls init(), which runs setup.