[TYPO3-50-general] TypoScript 2.0 framework

[Martin Kutschker]

What? Yet another framework? Why?

Well, TS 1.0 already is a kind of framework. The basic syntax is not only 
used for rendering the page, but also to define the constants and to 
configure users and page settings of the BE. So the underlying framework 
(parser) should handle this too. The fine point is that in an configuration 
context there is no output. And I want to reuse the syntax for other stuff 
like mapping external data (eg LDAP, CSV) to some internal representation 
(see LDAP authentication classes). Perhaps this frameweork can be used even 
without any TYPO3 at all.

* Preprocessor

The prepocessor handles the conditions and may be used to set constants 
from within the TS "file". Noteworthy is that the context of the 
prepocessor varies, so the preprocessor itself should not know anything 
about IP addresses or tree levels. Instead it should use a class that 
implements a "context interface" to execute the conditions.

* Parser

The parser has as input a constants array and an optional a rendering 
context (eg HTML, plain text, PDF). Also it needs to know which TS objects 
are allowed. The reason is that we need to know if we do  a TS template, a 
page TS or a user TS.

Masi