如何在Clojure中将PersistentHashMap很好地打印到字符串？ [英] How can I pretty print a PersistentHashMap in Clojure to a string?
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问题描述
如何在Clojure中将PersistentHashMap很好地打印到字符串？我正在寻找像：
（str（pprint {... hash map here ...}）
$ <$> 解决方案
user =>（import java.io.StringWriter）
java.io.StringWriter
user => [vn] [b] [b] [b] [b] [b] [b] ）（。toString w）））
＃'user / hashmap-to-string
user =>（hashmap-to-string {：a 1：b 2}）
{ ：a 1，：b 2} \\\
How can I pretty print a PersistentHashMap in Clojure to a string? I am looking for something like:
(str (pprint {... hash map here...})
which I can pass around as a String
解决方案 user=> (import java.io.StringWriter)
java.io.StringWriter
user=> (use '[clojure.pprint :only (pprint)])
nil
user=> (defn hashmap-to-string [m]
(let [w (StringWriter.)] (pprint m w)(.toString w)))
#'user/hashmap-to-string
user=> (hashmap-to-string {:a 1 :b 2})
"{:a 1, :b 2}\n"
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