34/45: gnu: Add rust-matchers-0.0.

[guix-commits]

efraim pushed a commit to branch master
in repository guix.

commit da4bb9160b2b6e0ca37b34eea81b1d0b3ee021c0
Author: John Soo <jsoo1@asu.edu>
AuthorDate: Wed Jun 17 18:51:44 2020 -0700

    gnu: Add rust-matchers-0.0.
    
    * gnu/package/crates-io.scm (rust-matchers-0.0): New variable.
    
    Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
---
 gnu/packages/crates-io.scm | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 0b774d3..cfe54c0 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -14781,6 +14781,31 @@ statement, the first matching branch is the item that 
gets emitted.")
 whether an expression matches a pattern.")
     (license license:expat)))
 
+(define-public rust-matchers-0.0
+  (package
+    (name "rust-matchers")
+    (version "0.0.1")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "matchers" version))
+       (file-name
+        (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32
+         "1q8ckqmkjqkznvdi9x0z769yz2bmvlqcwx51ad2lpk4mfmgpi6gh"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:cargo-inputs
+       (("rust-regex-automata" ,rust-regex-automata-0.1))))
+    (home-page "https://github.com/hawkw/matchers";)
+    (synopsis "Regex matching on character and byte streams")
+    (description
+     "Use this crate to match on character and byte streams using regular
+grammars.  It provides the subset of the regex crate that only deals with
+matching, not parsing substrings.")
+    (license license:expat)))
+
 (define-public rust-matrixmultiply-0.2
   (package
     (name "rust-matrixmultiply")