returning result from a function when the number of items in the result varies

Mark Smith lists at futilism.com
Sat Sep 20 20:32:17 EDT 2008


William, you've got the idea. Arrays are really useful in these  
circumstances, and are really worth becoming familiar with.

Best,

Mark



On 21 Sep 2008, at 01:13, william humphrey wrote:

> I'm having trouble sorting this out. I have a function that  
> searches through
> lines of tab delimited text. The number of lines varies from one to  
> ten. The
> result from the search is two things. A data element and a pointer  
> that says
> which kind of data element. Sometimes the result is one data  
> element and one
> pointer and sometimes the result is another quantity like three data
> elements each with their identifier. To have this returned by the  
> function
> it seems I need an array. I'm inexperienced at using arrays but I  
> imagine
> that you just build it in the function and that is what is returned  
> and then
> the identifiers for each data element are the keys and it makes no
> difference how many lines are in the array? Perhaps I also return a  
> counter
> which says how many lines of data are in the array?
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