CMS Made Simple Forums

This class  extends Smarty_Compiler and overrides the method _compile_custom_tag and basically nothing else. The changes in the method are not extensive either - just three or four lines. One of them is:
which is just before a call to_push_cacheable_state. The base class method sets the above true.

One effect of this change is apparently to write {nocache abc...} and stuff into compiled templates. I have been banging my head trying to understand what this {nocache} stuff is for and am basically clueless.

A counsel of despair I switched the above line back to the default 'true' to see what happened. The ugly {nocache} stuff went away and things seem still to work. So ....

Can anyone tell me what {nocache} is for? Also can a developer tell me whether this class  CMS_Compiler.class.php) which is in the Smarty lib is part of Smarty or a modification added for CMSMS?

I'm new to CMSMS but have plenty of time at the moment so I thought I would try and write some docs because developers don't often have much time for that. Catch is understanding the stuff. Explaining a template without {nocache} spilled all over it would be much easier  

Thanks for any clues

-- Peter