Add support for Tifinagh script

* lisp/leim/quail/tifinagh.el: New file.  Contributed by Adam Oudad
<adam.oudad@gmail.com>.
* lisp/language/misc-lang.el ("Tifinagh"): New language environment.

* etc/HELLO: Add a greeting in Tifinagh.
* etc/NEWS: Announce the addition of Tifinagh.

etc/HELLO

@@ -1,5 +1,5 @@
 Content-Type: text/enriched
-Text-Width: 70
+Text-Width: 72
 
 This is a list of ways to write a <x-color><param>orange red</param>"hello"</x-color> greeting using
 various scripts.  It is not intended to be comprehensive,
@@ -114,6 +114,7 @@ Tagbanwa (ᝦᝪᝯ)	ᝫᝩᝬᝥ ᝣᝮᝧᝯ
 TaiViet (ꪁꪫꪱꪣ ꪼꪕ)	ꪅꪰꪙꫂ ꪨꪮꫂ ꪁꪫꪱ / ꪅꪽ ꪨꪷ ꪁꪫꪱ
 Thai (ภาษาไทย)	สวัสดีครับ / สวัสดีค่ะ
 Tibetan (བོད་སྐད་)	བཀྲ་ཤིས་བདེ་ལེགས༎
+Tifinagh (ⵜⵉⴼⵉⵏⴰⵖ)	ⴰⵣⵓⵍ
 Tigrigna (ትግርኛ)	ሰላማት
 Tirhuta (𑒞𑒱𑒩𑒯𑒳𑒞𑒰)	𑒣𑓂𑒩𑒢𑒰𑒧 / 𑒮𑒲𑒞𑒰𑒩𑒰𑒧
 Turkish (Türkçe)	Esenlikler / Merhaba

etc/NEWS

@@ -46,6 +46,12 @@ usual minibuffer history commands.  Each command has a separate history.
 
 * Editing Changes in Emacs 31.1
 
+** Internationalization
+
+---
+*** New language-environment and input method for Tifinagh.
+The Tifinagh script is used to write the Berber languages.
+
 
 * Changes in Specialized Modes and Packages in Emacs 31.1
 

lisp/language/misc-lang.el

@@ -364,6 +364,19 @@ language environment."))
        (vector "[\u1820-\u18AF\u202F\u180B-\u180F\u1807]+"
                0 'font-shape-gstring)))
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Tifinagh
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+(set-language-info-alist
+ "Tifinagh"
+ '((charset unicode)
+   (coding-system utf-8)
+   (coding-priority utf-8)
+   (input-method "tifinagh")
+   (sample-text "Tifinagh	ⴰⵣⵓⵍ")
+   (documentation "Tifinagh a script used to write the Berber languages."))
+ '("Misc"))
+
 (provide 'misc-lang)
 
 ;;; misc-lang.el ends here

lisp/leim/quail/tifinagh.el

@@ -0,0 +1,67 @@
+;;; tifinagh.el --- Quail package for inputting Tifinagh	-*- coding: utf-8; lexical-binding:t -*-
+
+;; Copyright (C) 2024 Free Software Foundation, Inc.
+
+;; Author: Adam Oudad <adam.oudad@gmail.com>
+;; Keywords: mule, input method, Tifinagh
+
+(require 'quail)
+
+(quail-define-package
+ "tifinagh" "Tininagh" "ⵣ" nil "Tifinagh input method.
+
+Based on Tifinagh table in X Keyboard Configuration DB.
+" nil t t t t nil nil nil nil nil t)
+
+;; FIXME: This doesn't cover all of the codepoints that Unicode has
+;; defined for the Tifinagh script.
+(quail-define-rules
+ ("Q" ?ⵈ)
+ ("W" ?ⵯ)
+ ("R" ?ⵕ)
+ ("T" ?ⵟ)
+ ("P" ?ⵒ)
+
+ ("S" ?ⵚ)
+ ("D" ?ⴹ)
+ ("G" ?ⴶ)
+ ("H" ?ⵂ)
+ ("J" ?ⵌ)
+ ("K" ?ⴾ)
+
+ ("Z" ?ⵥ)
+ ("X" ?ⵝ)
+ ("C" ?ⵞ)
+ ("V" ?ⵗ)
+
+ ("q" ?ⵇ)
+ ("w" ?ⵡ)
+ ("e" ?ⴻ)
+ ("r" ?ⵔ)
+ ("t" ?ⵜ)
+ ("y" ?ⵢ)
+ ("u" ?ⵓ)
+ ("i" ?ⵉ)
+ ("o" ?ⵄ)
+ ("p" ?ⵃ)
+
+ ("a" ?ⴰ)
+ ("s" ?ⵙ)
+ ("d" ?ⴷ)
+ ("f" ?ⴼ)
+ ("g" ?ⴳ)
+ ("h" ?ⵀ)
+ ("j" ?ⵊ)
+ ("k" ?ⴽ)
+ ("l" ?ⵍ)
+
+ ("z" ?ⵣ)
+ ("x" ?ⵅ)
+ ("c" ?ⵛ)
+ ("v" ?ⵖ)
+ ("b" ?ⴱ)
+ ("n" ?ⵏ)
+ ("m" ?ⵎ)
+ )
+
+;;; tifinagh.el ends here