add rlwrap

[Efraim Flashner <efraim@flashner.co.il>]

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Rlwrap is a wrapper program around readline, so I've stuck it in
readline.scm. I realized while testing some of the programs I use
regularly I've been negligent in submitting patches, so here's the first
one I have.


-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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From a2285798832daa6b4d33aac3382171ec25ea032d Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Sun, 17 Jul 2016 08:56:03 +0300
Subject: [PATCH] gnu: Add rlwrap.

* gnu/packages/readline.scm (rlwrap): New variable.
---
 gnu/packages/readline.scm | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/gnu/packages/readline.scm b/gnu/packages/readline.scm
index db469db..169a738 100644
--- a/gnu/packages/readline.scm
+++ b/gnu/packages/readline.scm
@@ -1,5 +1,6 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -20,6 +21,7 @@
   #:use-module (guix licenses)
   #:use-module (gnu packages)
   #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages perl)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu))
@@ -85,3 +87,29 @@ comfortable for anyone.")
               (sha256
                (base32
                 "10ckm2bd2rkxhvdmj7nmbsylmihw0abwcsnxf8y27305183rd9kr"))))))
+
+(define-public rlwrap
+  (package
+    (name "rlwrap")
+    (version "0.42")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append "http://utopia.knoware.nl/~hlub/uck/rlwrap/rlwrap-"
+                            version ".tar.gz"))
+        (sha256
+         (base32
+          "0i3yz303wscrysyzpdq04h4nrl9ajz9dbwi80risdl5rkm3dhw2s"))))
+    (build-system gnu-build-system)
+    (native-inputs `(("perl" ,perl)))
+    (inputs
+     `(("readline" ,readline)))
+    (synopsis "Wrapper to allow the editing of keyboard commands")
+    (description
+     "Rlwrap is a 'readline wrapper', a small utility that uses the GNU
+readline library to allow the editing of keyboard input for any command.  You
+should consider rlwrap especially when you need user-defined completion (by way
+of completion word lists) and persistent history, or if you want to program
+'special effects' using the filter mechanism.")
+    (home-page "http://utopia.knoware.nl/~hlub/uck/rlwrap/")
+    (license gpl2+)))
-- 
2.9.1


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