Hi guys,
I'm writing a simple parser here, and for parsing I'm creating a
lazy-sequence this way:
(defn tokens-sec [string]
(iterate (fn [info] (next-token info)) [0 0 string []]))
but there is a problem, this sequence has a limit (that's when there are no
more tokens to consume).
How I stop the iteration?? How I signal that it reached the end? I tried:
(defn tokens-sec [string]
(iterate (fn [[_ _ string] :as info]
(if (> (count string) 0) (next-token info))) [0 0 string []]))
but no lucky...
There is any way to signal to iterate that list reached the end? Or there is
another way that I can't see to make this lazy list works this way?
---
Wilker Lúcio
http://about.me/wilkerlucio/bio
Kajabi Consultant
+55 81 82556600
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