On Jul 15, 3:10 pm, Rasmus Svensson <r...@lysator.liu.se> wrote:
> 2011/7/14 OGINO Masanori <masanori.og...@gmail.com>:
> > Hello.
>
> > What is the right way to display namespace docstrings?
>
> > One day, as usual, I typed:
>
> > (doc 'clojure.core) ; or other namespace
>
> > Then the REPL said "clojure.lang.Cons cannot be cast to 
> > clojure.lang.Symbol."
> > I thought "Ah, I know, the message means "(quote clojure.core) cannot
> > be cast to the symbol clojure.core." I'm wrong." and typed:
>
> > (doc clojure.core)
>
> > Then the REPL said "ClassNotFoundException clojure.core."
> > I thought "Indeed, clojure.core seems to be an class name...
> > Precisely, can (doc) display namespace docstrings?" and typed:
>
> > (source doc)
>
> > Oh, (doc) uses (find-ns), so (doc) should display namespace docstrings. But 
> > how?
> > Finally I wrote (:doc (meta (the-ns 'clojure.core))) but I know this
> > is a wrong way.
> > When I forget this ad-hoc solution, I'll repeat above.
>
> > I determined to ask it because I have repeated again just now and I'm 
> > annoyed.
> > Any thought?
>
> > Thanks.
>
> 'doc' is only used for things that are vars (functions, and other
> globals). Namespaces are not vars, so you cannot use 'doc' with them.
> To see the docs for a namespace, use the 'print-namespace-doc'
> function:
>
>     (print-namespace-doc 'the.name.space)
>

This is not true in 1.2.x: (doc clojure.core) works fine for me. If it
stopped working in 1.3 intentionally, that's fine (I guess?), but it
sounds like it was an accident.

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