gnu: Add ghc-scalpel.

* gnu/packages/haskell-web.scm (ghc-scalpel): New variable.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/haskell-web.scm

@@ -1628,3 +1628,33 @@ cookies, serving files, and more.")
 that is intended to have lightweight dependencies and to be free of all
 non-Haskell dependencies.")
     (license license:asl2.0)))
+
+(define-public ghc-scalpel
+  (package
+    (name "ghc-scalpel")
+    (version "0.6.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (string-append
+               "https://hackage.haskell.org/package/scalpel/"
+               "scalpel-" version ".tar.gz"))
+        (sha256
+         (base32
+          "0jbrfcgljl8kbcwi2zqx1jp3c3dpxrkc94za44x56kcz68n89hlz"))))
+    (build-system haskell-build-system)
+    (inputs
+     `(("ghc-scalpel-core" ,ghc-scalpel-core)
+       ("ghc-case-insensitive" ,ghc-case-insensitive)
+       ("ghc-data-default" ,ghc-data-default)
+       ("ghc-http-client" ,ghc-http-client)
+       ("ghc-http-client-tls" ,ghc-http-client-tls)
+       ("ghc-tagsoup" ,ghc-tagsoup)))
+    (home-page "https://github.com/fimad/scalpel")
+    (synopsis
+     "High level web scraping library for Haskell")
+    (description
+     "Scalpel is a web scraping library inspired by libraries like Parsec
+and Perl's @code{Web::Scraper} Scalpel builds on top of TagSoup to provide a
+declarative and monadic interface.")
+    (license license:asl2.0)))