I just wrote a fn called takeall that seems to do what I want:
(defn takeall [x & [y]]
(if (and x y)
(take x y)
x))
On Aug 20, 1:44 pm, Glen Rubin <[email protected]> wrote:
> I am writing a fn to extract elements from a sequence using optional
> start and end values. I will do this by testing if 'end' or 'start'
> values are passed as parameters to the function. If the user does
> not specify a end value I would like the fn to return the entire
> sequence from 'start' to end. Is there a way to take all. I know I
> could just specify a really high number, but that seems kind of
> messy. Or I am also thinking the fcn could have several branches, but
> that also seems messy. I think it's best to just assign a default
> value if there is none.
>
> The body of fn would look something like this, where 'start' and 'end'
> would have number values:
> (drop start (take end coll))
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