On Mon, Jun 18, 2012 at 4:18 PM, Antix <matthias.kal...@googlemail.com>wrote:
> Hi Guys,
> I'm very new to clojure and searching for a way to convert a given
> String to a Hashmap as far as this is possible.
> I thought already about the use of a macro, but all the different
> quotes are a little bit confusing for me.
>
> Is it possible to create a Hashmap or some similar structure by using
> a given String.
>
> My Input-String is something like: :Name "John", :age 20, :gender
> "n"
> Is it possible to convert this to a hashmap similar to this:
> (def hashm {:Name "John", :age 20, :gender "n" }) ?
>
Use the built in read-string function.:
(read-string (str "{" s "}")))
Don't use eval or load-string. read-string is safer, faster, and won't hit
JVM size limits.
Also, if the input isn't trusted, you should bind *read-eval* to false, to
avoid being subject to running hostile user-supplied code:
(defn parse-map
[s]
(binding [*read-eval* false]
(read-string (str "{" s "}"))))
--
Dave
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