* Parse the conversion table stored in the cache.
*
* The tables should be in blocks of the following form:
* Parse the conversion table stored in the cache.
*
* The tables should be in blocks of the following form:
*
* To make the tables more manageable, subpages are allowed
* and will be parsed recursively if $recursive == true.
*
* To make the tables more manageable, subpages are allowed
* and will be parsed recursively if $recursive == true.