[bug#34766] [PATCH] Add emacs-xr

[Nicolas Goaziou]

Hello,

The following patch adds emacs-xr.

Feedback welcome.

Regards,

-- 
Nicolas Goaziou

>From 35c46ec8cede39bc26754db6d839be6ac6c5ae0a Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <address@hidden>
Date: Wed, 6 Mar 2019 10:48:32 +0100
Subject: [PATCH] gnu: Add emacs-xr.

* gnu/packages/emacs-xyz.scm (emacs-xr): New variable.
---
 gnu/packages/emacs-xyz.scm | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 30248f673a..52624d9e13 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -734,6 +734,35 @@ can be referred to during the expression.  This technique 
can improve clarity
 in certain cases.  It also enables recursion for anonymous functions.")
     (license license:public-domain)))
 
+(define-public emacs-xr
+  (package
+    (name "emacs-xr")
+    (version "1.5")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://elpa.gnu.org/packages/xr-"; version ".tar"))
+       (sha256
+        (base32
+         "137d43p748rqh16bq9wdy74zq2sm6z35haa8hwnq6p7n0j3kxkyp"))))
+    (build-system emacs-build-system)
+    (home-page "http://elpa.gnu.org/packages/xr.html";)
+    (synopsis "Convert string regexp to rx notation")
+    (description
+     "This is an inverse companion to the @code{rx} package for translating
+regexps in string form to the @code{rx} notation.  Its chief uses are:
+
address@hidden
address@hidden Migrating existing code to @code{rx} form, for better 
readability and
+maintainability
address@hidden Understanding complex regexp strings and finding errors in them
address@hidden itemize
+
+Please refer to @code{rx} for more information about the notation.")
+    (license license:gpl3+)))
+
+
 
 ;;;
 ;;; Web browsing.
-- 
2.21.0