clojure.core/*print-meta*

View this page on ClojureDocs

Type: var Added: Clojure 1.0 Examples: 2 Runnable: 1

()

If set to logical true, when printing an object, its metadata will also be printed in a form that can be read back by the reader.

Defaults to false.

Examples

by AtKaaZ on 2012-10-25 ▶

(binding [*print-meta* true] (pr (var defmacro)) ) ;;^{:macro true, :ns #<Namespace clojure.core>, :name defmacro, :arglists ^{:line 424, :column 15} ([name doc-string? attr-map? [params*] body] [name doc-string? attr-map? ^{:line 425, :column 46} ([params*] body) + attr-map?]), :column 1, :added "1.0", :doc "Like defn, but the resulting function name is declared as a\n macro and will be used as a macro by the compiler when it is\n called.", :line 419, :file "clojure/core.clj"} #'clojure.core/defmacro nil

by squiter on 2021-06-16 . May have evaluation errors. ▶

(binding [*print-meta* true] (-> "{:a ^{:b :c} {}}" clojure.edn/read-string clojure.pprint/pprint)) {:a ^{:b :c} {}} nil

Note by AtKaaZ

"printing an object" means via pr not print or println

Note by squiter

The *print-meta* works for print and pprint after Clojure 1.10.2. Source: https://clojure.atlassian.net/browse/CLJ-1445

See also

• clojure.core/pr (2)
• clojure.pprint/pprint (0)

---

Content from the matching ClojureDocs page, with authors credited on each contribution.