I recently ran into this problem again.
The solution I came up with is:
(defn filter-printable [obj]
(cond
(or (symbol? obj) (number? obj) (string? obj) (keyword? obj)) obj
(vector? obj) (apply vector (map filter-printable obj))
(seq? obj) (map filter-printable obj)
(set? obj)
Shouldn't that be:
(defn filter-printable [obj]
(cond
(or (symbol? obj) (number? obj) (string? obj) (keyword? obj)) obj
(vector? obj) (apply vector (map filter-printable obj))
(seq? obj) (map filter-printable obj)
(set? obj) (into #{} (map filter-printable obj))
(map? obj) (into
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
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
Either you misunderstood my question or I misunderstood your answer.
I don't want the entire expression to return nil. I only want the
_unparsable_ part to return nil.
Thus, the above answer should be
{:tag :message
:chan ni}
rather than
nil
On Thu, Jan 16, 2014 at 1:47 AM, Luc Prefontaine
What you want is currently not possible.
If you need this functionality, I'll take a patch for tools.reader that
adds a :nil-on-unreadable option to clojure.tools.reader.edn/read.
Il giorno 16/gen/2014 11.05, t x txrev...@gmail.com ha scritto:
Either you misunderstood my question or I
Oups, skipped the last part of your
emal. With edn I see no way to
do this.
Luc
Either you misunderstood my question or I misunderstood your answer.
I don't want the entire expression to return nil. I only want the
_unparsable_ part to return nil.
Thus, the above answer should be
I think I would change the sender to elide whatever parts you don't want to
send rather than mess with the receiver.
On Thursday, January 16, 2014 2:11:02 AM UTC-6, t x wrote:
Hi,
Right now if I do (clojure.edn/read-string ...) on a string with a
unreadable part, I get an exception.
After looking at edn/read-string and realizing I would have to modify Java
code, I have decided that modifying the sender in clojure land isn't so bad
after all.
On Thu, Jan 16, 2014 at 9:41 AM, Alex Miller a...@puredanger.com wrote:
I think I would change the sender to elide whatever parts
