gnu: Add rust-titlecase-1.

* gnu/packages/crates-io.scm (rust-titlecase-1): New variable.

gnu/packages/crates-io.scm

@@ -38230,6 +38230,31 @@ closures after a delay or at a given timestamp.")
      "A 100% safe crate of vec-like types.")
     (license (list license:zlib license:asl2.0 license:expat))))
 
+(define-public rust-titlecase-1
+  (package
+    (name "rust-titlecase")
+    (version "1.1.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (crate-uri "titlecase" version))
+       (file-name (string-append name "-" version ".tar.gz"))
+       (sha256
+        (base32 "05qizspxihjhmzsd9y6kfxzrss4jl4y042wni4m2yk62rw8f8rgm"))))
+    (build-system cargo-build-system)
+    (arguments
+     `(#:skip-build? #t
+       #:cargo-inputs
+       (("rust-lazy-static" ,rust-lazy-static-1)
+        ("rust-regex" ,rust-regex-1))))
+    (home-page "https://github.com/wezm/titlecase")
+    (synopsis "Tool and Rust crate for transforming text into title case")
+    (description
+     "This package provides a tool and library that capitalizes text according
+to a style defined by John Gruber for post titles on his website ``Daring
+Fireball''.")
+    (license license:expat)))
+
 (define-public rust-tokio-1
   (package
     (name "rust-tokio")