01/01: gnu: Add emacs-xr.

[guix-commits]

ngz pushed a commit to branch master
in repository guix.

commit 5dfbf5620cb5d6ab4153f7ea24922beab0beddf5
Author: Nicolas Goaziou <address@hidden>
Date:   Wed Mar 6 10:48:32 2019 +0100

    gnu: Add emacs-xr.
    
    * gnu/packages/emacs-xyz.scm (emacs-xr): New variable.
---
 gnu/packages/emacs-xyz.scm | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 28b24d4..bf637d7 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -746,6 +746,36 @@ 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 "1.7")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append
+             "https://elpa.gnu.org/packages/xr-"; version ".tar"))
+       (sha256
+        (base32
+         "099r88s2giv95nkwiim1cx8fy7cvv1pg1701733p4ami82ldsdw0"))))
+    (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
+
+In addition to Emacs regexps, this package can also parse and troubleshoot
+skip set strings, which are arguments to @code{skip-chars-forward} and
address@hidden")
+    (license license:gpl3+)))
+
 
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