Two-dimensional slices in D

[Ivan Kazmenko via Digitalmars-d-learn]

On Tuesday, 14 April 2015 at 14:21:41 UTC, Dennis Ritchie wrote:
> 	writefln("[%([%(%s, %)]%|\n %)]", [a[4][4 .. $], a[5][4 .. $], 
> a[6][4 .. $], a[7][4 .. $]]);
At least this can be done as
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writefln("[%([%(%s, %)]%|\n %)]", a[4..8].map !(b => b[4 .. $]));
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