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16/20: gnu: Add r-crayon.

From: Ricardo Wurmus
Subject: 16/20: gnu: Add r-crayon.
Date: Mon, 21 Sep 2015 08:49:00 +0000

rekado pushed a commit to branch master
in repository guix.

commit 834f7ff3c0e3266beb13dde7356420960d9ff074
Author: Vicente Vera Parra <address@hidden>
Date:   Tue Sep 15 14:23:46 2015 -0300

    gnu: Add r-crayon.
    * gnu/packages/statistics.scm (r-crayon): New variable.
 gnu/packages/statistics.scm |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/gnu/packages/statistics.scm b/gnu/packages/statistics.scm
index 1a99a09..cf172ab 100644
--- a/gnu/packages/statistics.scm
+++ b/gnu/packages/statistics.scm
@@ -789,3 +789,26 @@ understand the language at a deeper level.")
      "This R package allows to cache the results of a function so that when
 you call it again with the same arguments it returns the pre-computed value.")
     (license license:expat)))
+(define-public r-crayon
+  (package
+    (name "r-crayon")
+    (version "1.3.1")
+    (source (origin
+              (method url-fetch)
+              (uri (cran-uri "crayon" version))
+              (sha256
+               (base32
+                "0d38fm06h272a8iqlc0d45m2rh36giwqw7mwq4z8hkp4vs975fmm"))))
+    (build-system r-build-system)
+    (propagated-inputs
+     `(("r-memoise" ,r-memoise)))
+    (home-page "";)
+    (synopsis "Colored terminal output for R")
+    (description
+     "Colored terminal output on terminals that support ANSI color and
+highlight codes.  It also works in Emacs ESS.  ANSI color support is
+automatically detected.  Colors and highlighting can be combined and nested.
+New styles can also be created easily.  This package was inspired by the
+\"chalk\" JavaScript project.")
+    (license license:expat)))

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