@@ -5085,3 +5085,42 @@ functionality but allows implementations several times faster (4 times faster
than yojson), with 25-35% space savings.")
(license license:bsd-3)))
+(define-public ocaml-yojson
+ (package
+ (name "ocaml-yojson")
+ (version "1.4.1")
+ (home-page "https://github.com/ocaml-community/yojson")
+ (source
+ (origin
+ (method git-fetch)
+ (uri (git-reference
+ (url (string-append home-page ".git"))
+ (commit (string-append "v" version))))
+ (file-name (git-file-name name version))
+ (sha256
+ (base32
+ "0nwsfkmqpyfab4rxq76q8ff7giyanghw08094jyrp275v99zdjr9"))))
+ (build-system ocaml-build-system)
+ (inputs
+ `(("biniou" ,ocaml-biniou)
+ ("ocaml-easy-format" ,ocaml-easy-format)
+ ("cppo" ,ocaml-cppo)))
+ (native-inputs
+ `(("jbuilder" ,ocaml-jbuilder)))
+ (arguments
+ '(#:phases
+ (modify-phases %standard-phases
+ (delete 'configure)
+ (replace 'install
+ (lambda _
+ (invoke "jbuilder" "install"
+ (string-append "--prefix="
+ (assoc-ref %outputs "out"))))))))
+ (synopsis "Low-level JSON library for OCaml")
+ (description "Yojson is an optimized parsing and printing library for the
+JSON format. It addresses a few shortcomings of json-wheel including 2x
+speedup, polymorphic variants and optional syntax for tuples and variants.
+@code{ydump} is a pretty printing command-line program provided with the
+yojson package. The program @code{atdgen} can be used to derive OCaml-JSON
+serializers and deserializers from type definitions.")
+ (license license:bsd-3)))