[Rd] print()ing of raw matrices (PR#7912)

[ripley at stats.ox.ac.uk]

The bug was a case statement with no default to say `unimplemented'.  I 
have now added that, and implemented printing of raw matrices.

It was intentional, as I thought no one would ever want to print them:
never think `never'!

On Thu, 2 Jun 2005 maechler at stat.math.ethz.ch wrote:

> Not a bug in a very strict sense,
> but still something to be fixed eventually:
>
>> s <- sapply(0:7, function(i) rawShift(charToRaw("my text"),i))
>> s
>
> ... nothing is printed at all
>
>> str(s)
> raw [1:7, 1:8] 6d 79 20 74 ...
>> c(s)
> [1] 6d 79 20 74 65 78 74 da f2 40 e8 ca f0 e8 b4 e4 80 d0 94 e0 d0 68 c8 00 a0
> [26] 28 c0 a0 d0 90 00 40 50 80 40 a0 20 00 80 a0 00 80 40 40 00 00 40 00 00 80
> [51] 80 00 00 80 00 00
>>
>
> and similar behavior for arrays, e.g.,
>
>> dim(s) <- c(7,4,2)
>> s
> , , 1
>
>
> , , 2
>
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>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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