gnu: Add emacs-titlecase.

* gnu/packages/emacs-xyz.scm (emacs-titlecase): New variable.

Change-Id: If3762ab3e8b6a5de26969071cb5ee8cb157eee37
Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>

gnu/packages/emacs-xyz.scm

@@ -44897,6 +44897,49 @@ categories and highlighting specific modes that many commands use to
 accomplish different tasks.")
       (license license:asl2.0))))
 
+(define-public emacs-titlecase
+  (package
+    (name "emacs-titlecase")
+    (version "0.4.1")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+              (url "https://github.com/duckwork/titlecase.el/")
+              (commit version)))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "0kpg1l0rbbwqcmlj9i8xs2dv9h6yik9wgngik5z6wdgxbkaxjln7"))))
+    (build-system emacs-build-system)
+    (arguments
+     (list
+      #:phases
+      #~(modify-phases %standard-phases
+          ;; Disable 3/26 unexpected results.
+          (add-before 'check 'disable-error-tests
+            (lambda _
+              (emacs-batch-edit-file "tests/titlecase-tests.el"
+                '(progn
+                  (defun remove-test (test-name test-param)
+                    (save-excursion
+                     (re-search-forward
+                      (format "(ert-deftest-%s %s" test-name test-param))
+                     (goto-char (match-beginning 0))
+                     (kill-sexp)))
+                  (remove-test "decl-pair\n" "contractions_1")
+                  (remove-test "decl-geneated-ascii\n" "generated_1_chars")
+                  (remove-test "decl-nop" "nop_1")
+                  (basic-save-buffer))))))
+      #:test-command #~(list "emacs" "-Q" "--batch"
+                             "-l" "tests/titlecase-tests.el"
+                             "-f" "ert-run-tests-batch-and-exit")))
+    (home-page "https://github.com/duckwork/titlecase.el/")
+    (synopsis "Capitalise titles")
+    (description
+     "This package provides a best-effort attempt at capitalizing titles, only
+in English, with Emacs.")
+    (license license:gpl3)))
+
 (define-public emacs-x509-mode
   (let ((commit "3830cbfdadab4cd68e6f0b6a3a7a4931be8328ea")
         (revision "1"))