gnu: Add cl-charje.loop.

* gnu/packages/lisp-xyz.scm (sbcl-charje.loop, cl-charje.loop,
ecl-charje.loop): New variables.

Change-Id: I69cfc7a73a7632e4fa2204d729503b98e609070e
Signed-off-by: Guillaume Le Vaillant <glv@posteo.net>

gnu/packages/lisp-xyz.scm

@@ -2552,6 +2552,40 @@ (define-public cl-iterate
 (define-public ecl-iterate
   (sbcl-package->ecl-package sbcl-iterate))
 
+(define-public sbcl-charje.loop
+  (package
+    (name "sbcl-charje.loop")
+    (version "0.0.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://git.sr.ht/~charje/loop")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name "cl-charje.loop" version))
+       (sha256
+        (base32
+         "1x1hw5xmrx9xmfzga8y0yi6s27r7zc80rwl2z7l4d2h24ykscvd4"))))
+    (build-system asdf-build-system/sbcl)
+    (inputs
+     (list sbcl-alexandria
+           sbcl-binding-arrows
+           sbcl-parse-declarations))
+    (home-page "https://git.sr.ht/~charje/loop")
+    (synopsis "Loop abstraction for Common Lisp that is consistent for
+different kinds of data")
+    (description "Loop is a joy to use and has a consistent interface unlike
+other looping abstractions and ANSI list operations.  You can define your own
+iterators and aggregators that integrate tightly into other operations.  All
+operations are non-consing when possible.")
+    (license license:agpl3+)))
+
+(define-public cl-charje.loop
+  (sbcl-package->cl-source-package sbcl-charje.loop))
+
+(define-public ecl-charje.loop
+  (sbcl-package->ecl-package sbcl-charje.loop))
+
 (define-public sbcl-cl-uglify-js
   ;; There have been many bug fixes since the 2010 release.
   (let ((commit "429c5e1d844e2f96b44db8fccc92d6e8e28afdd5")