[PD] expr size() refuses some array names

[Matteo Sisti Sette]

Derek Holzer escribió:
> What if you bang a [f $1] and send it to [expr size("$1foo")]?
> 
> Likewise with "bang"--->[f $0]--->[expr size("$0foo")]?

The problem is you cannot create [expr size("$1foo")] in the first place 
(nor with $0): it gives the syntax error at creation time and refuses to 
create.

If you could, then you wouldn't need the [f $0] (the expression doesn't 
depend on the input)....

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Matteo Sisti Sette
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