17/25: gnu: Add julia-identityranges.

[guix-commits]

efraim pushed a commit to branch master
in repository guix.

commit 7cb023cc0184072633ed1052eb28b5880e807fe5
Author: Efraim Flashner <efraim@flashner.co.il>
AuthorDate: Tue Jun 8 17:19:05 2021 +0300

    gnu: Add julia-identityranges.
    
    * gnu/packages/julia-xyz.scm (julia-identityranges): New variable.
---
 gnu/packages/julia-xyz.scm | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/gnu/packages/julia-xyz.scm b/gnu/packages/julia-xyz.scm
index 16adf60..62c8f2a 100644
--- a/gnu/packages/julia-xyz.scm
+++ b/gnu/packages/julia-xyz.scm
@@ -1223,6 +1223,32 @@ library for parsing HTML.")
 implementing both a client and a server.")
     (license license:expat)))
 
+(define-public julia-identityranges
+  (package
+    (name "julia-identityranges")
+    (version "0.3.1")
+    (source
+      (origin
+        (method git-fetch)
+        (uri (git-reference
+               (url "https://github.com/JuliaArrays/IdentityRanges.jl";)
+               (commit (string-append "v" version))))
+        (file-name (git-file-name name version))
+        (sha256
+         (base32 "0jvl4xn8f8k70sn473li5q62wbiycl5qi25b5k456h3a0j1lbiml"))))
+    (build-system julia-build-system)
+    (propagated-inputs
+     `(("julia-offsetarrays" ,julia-offsetarrays)))
+    (home-page "https://github.com/JuliaArrays/IdentityRanges.jl";)
+    (synopsis "Ranges that preserve indices of views")
+    (description "@code{IdentityRanges} are Julia-language a helper type for
+creating \"views\" of arrays.  They are a custom type of AbstractUnitRange that
+makes it easy to preserve the indices of array views.  The key property of an
+@code{IdentityRange r} is that @code{r[i] == i} (hence the name of the
+type/package), and that they support arbitrary start/stop indices (i.e., not
+just starting at 1).")
+    (license license:expat)))
+
 (define-public julia-ifelse
   (package
     (name "julia-ifelse")