[bug#37622] [PATCH] gnu: Add emacs-extempore-mode.

[Giacomo Leidi <goodoldpaul@autistici.org>]

* gnu/packages/emacs-xyz.scm (emacs-extempore-mode): New variable.
---
 gnu/packages/emacs-xyz.scm | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 44fe73c3ef..69c3e9dd87 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -18754,3 +18754,30 @@ Emacs that integrate with major modes like Org-mode.")
      "Elixir-Mode Provides font-locking, indentation and navigation support
  for the Elixir programming language.")
     (license license:gpl3+)))
+
+(define-public emacs-extempore-mode
+  (let ((version "20190917")            ; no proper tag, use date of commit
+        (commit "848ad0084f27b92d1cf98dabffbad29f959a642d")
+        (revision "1"))
+    (package
+      (name "emacs-extempore-mode")
+      (version (git-version version revision commit))
+      (source
+       (origin
+         (method git-fetch)
+         (uri (git-reference
+               (url "https://github.com/extemporelang/extempore-emacs-mode.git")
+               (commit commit)))
+         (file-name (git-file-name name version))
+         (sha256
+          (base32 "00wr025php7nl33x541s9rjm99hj0jbdcmnw9ljx5hqpm04aqm7c"))))
+      (build-system emacs-build-system)
+      (home-page
+       "https://github.com/extemporelang/extempore-emacs-mode")
+      (synopsis
+       "Emacs major mode for Extempore source files")
+      (description
+       "A major mode for editing Extempore code.  It can create an
+Extempore REPL, connect the current @code{extempore-mode} buffer
+to a running Extempore process and more.")
+      (license license:bsd-2))))
-- 
2.23.0