[MS] 2008-03-04

NRE is the nickname for '''Non-recursive Engine''', an experimental new implementation of Tcl at [http://tcl.msofer.com:8080/wiki?name=NRE]. It was announced at [http://aspn.activestate.com/ASPN/Mail/Message/tcl-core/3612000], a short clumsy description is at [http://tcl.msofer.com:8080/wiki?name=NRE+short+explanation].

The initial problem NRE is called to solve is Tcl's hungryness for C stack resources, which preempt deep recursion. NRE reduces the C stack consumption very noticeably, essentially making it infinite (recursion depth is bound by the heap not the stack). It also provides an experimental implementation for proper tailcalls - ie, making the recursion depth bound by the electricity supply and/or the lifetime of the hardware.

Exciting further developments are planned, mostly with respect to [concurrency concepts].

NRE's first implementation lives in the mod-core-8-3-4 branch at CVS. The new and ''much'' improved can be downloaded from [http://tcl.msofer.com:8080], a specific wiki is also maintained there.
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