revive let blocks

Herby Vojčík herby at
Thu Jun 18 12:38:10 UTC 2015

Benjamin Gruenbaum wrote:
> Apart from complicating the engine and the grammar - what advantage does the second version have over the first one? Why do you prefer it to the first one? (Genuinely asking)
> I'm also not aware of any other languages that provide this (although that's not a huge issue).

IIRC, Standard ML of New Jersey had a keyword 'local' for this (but it 
was long ago when I has that course in university).


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