Wrap the read in a try catch just return nil in the catch clause
for this specific exception and wrap it in a function for ease
of use. You might want to throw up any other exceptions and
only catch this one....

Luc P.


> I should add: this problem arises due to cljs / clojure talking over the
> network, so:
> 
> (*) not using serialization is NOT an option
> 
> (*) however, I don't have to use edn/read-string + pr-str
> 
> (*) it's perfectly fine to use different encoding/decoding methods
> 
> 
> On Thu, Jan 16, 2014 at 12:11 AM, t x <txrev...@gmail.com> wrote:
> 
> > Hi,
> >
> >   Right now if I do (clojure.edn/read-string ...) on a string with a
> > unreadable part, I get an exception. Instead, I would like to just get nil.
> > For example:
> >
> >
> > ## code
> >
> > (clojure.edn/read-string
> >  (pr-str
> >   {:tag :message
> >    :chan (async/chan 10)}))
> >
> > ## currently returns
> >
> > java.lang.RuntimeException: Unreadable form
> >  at clojure.lang.Util.runtimeException (Util.java:219)
> >
> >
> > ## instead, I would like:
> >
> > {:tag :message
> >  :chan :nil}
> >
> >
> > Is there a way to make this happen?
> >
> > Thanks!
> >
> 
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