Thank you, that's neat! On Monday, 7 April 2014 19:14:40 UTC+1, guns wrote: > > On Mon 7 Apr 2014 at 11:07:37AM -0700, Simon Brooke wrote: > > OK, the second question I've sort of answered for myself, by riffing on > the > > source of line-seq: > > > > (defn expr-seq > > "Returns forms from src (assumed to be Clojure source) as a lazy > sequence > > of expressions" > > [^java.io.PushbackReader src] > > (when-let [expr (read src)] > > (try > > (cons expr (lazy-seq (expr-seq src))) > > (catch RuntimeException eof)))) > > > > However, line-seq doesn't bother with catching an exception (presumably > > because it's not using a PushbackReader). So I come back to my first > > question: how do I detect the end of a file? > > Use clojure.core/read with three params: [stream eof-error? eof-value] > From the Slamhound source: > > (take-while #(not= ::done %) (repeatedly #(read rdr false ::done))) > > guns >
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