[Petal] repeat through hash

[Mark Holland]

Jonathan Vanasco wrote:

> i believe that in python you can map the repeat onto a generator or 
> iterator - i *think* you can figure out a way mimic that it in perl 
> using petal's method support
> 
> ie, your repeat loop calls a function that returns the next item in 
> whatever sequence, and petal stops doing that at the end
> 
> its pretty easy to do in python tal, but i'm not sure about the petal 
> version.

I asked the list some time ago about going through cursors in petal. 
Jean-Michel suggested I tie the cursor to an array, which worked well. 
I'll have a look for my code but I think it's long gone.

https://lists.webarch.co.uk/pipermail/petal/2003-February/000301.html