From 2c94882dc4eb680bc26b51b7b4d0eca393e4a55c Mon Sep 17 00:00:00 2001
From: Petr Hodina <phodina@protonmail.com>
Date: Wed, 16 Feb 2022 02:01:04 +0100
Subject: [PATCH 1/3] gnu: Add rust-logos-derive-0.12.

* gnu/packages/crates-io.scm (rust-logos-derive-0.12): New variable.

diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 2e176eeb54..ae46f59198 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -32394,6 +32394,33 @@ (define-public rust-log4rs-1
 logging implementation for the `log` facade.")
     (license (list license:expat license:asl2.0))))
 
+(define-public rust-logos-derive-0.12
+  (package
+    (name "rust-logos-derive")
+    (version "0.12.0")
+    (source (origin
+              (method url-fetch)
+              (uri (crate-uri "logos-derive" version))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "0vf38d1pvy3w7qdpl7yr9ds5azaahy51r6pi25dzghrazn3x59sn"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-beef" ,rust-beef-0.5) ("rust-fnv" ,rust-fnv-1)
+        ("rust-proc-macro2" ,rust-proc-macro2-1)
+        ("rust-quote" ,rust-quote-1)
+        ("rust-regex-syntax" ,rust-regex-syntax-0.6)
+        ("rust-syn" ,rust-syn-1)
+        ("rust-utf8-ranges" ,rust-utf8-ranges-1))))
+    (home-page "https://github.com/maciejhirsz/logos")
+    (synopsis "Macros for deriving common traits for fast Lexers")
+    (description "This package provides macros for deriving common traits for
+fast Lexers.")
+    (license (list license:expat license:asl2.0))))
+
 (define-public rust-logtest-2
   (package
     (name "rust-logtest")
-- 
2.34.0