Package: emacs;
Reported by: Arun Isaac <arunisaac <at> systemreboot.net>
Date: Sun, 25 Sep 2022 10:01:02 UTC
Severity: wishlist
Tags: patch
Done: Eli Zaretskii <eliz <at> gnu.org>
Bug is archived. No further changes may be made.
Message #8 received at 58070 <at> debbugs.gnu.org (full text, mbox):
From: Arun Isaac <arunisaac <at> systemreboot.net> To: 58070 <at> debbugs.gnu.org Cc: Arun Isaac <arunisaac <at> systemreboot.net> Subject: [PATCH] Add tamil99 input method Date: Sun, 25 Sep 2022 15:32:44 +0530
* lisp/leim/quail/tamil99.el: New file.
* etc/NEWS: Mention new tamil99 input method.
---
etc/NEWS | 3 +
lisp/leim/quail/tamil99.el | 200 +++++++++++++++++++++++++++++++++++++
2 files changed, 203 insertions(+)
create mode 100644 lisp/leim/quail/tamil99.el
diff --git a/etc/NEWS b/etc/NEWS
index 3d1af8bd6f..bcdc991ea3 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -1279,6 +1279,9 @@ The default input method for the Tamil language environment is now
change the input method's translation rules, customize the user option
'tamil-translation-rules'.
+---
+*** New tamil99 input method for the Tamil language
+
* Changes in Specialized Modes and Packages in Emacs 29.1
diff --git a/lisp/leim/quail/tamil99.el b/lisp/leim/quail/tamil99.el
new file mode 100644
index 0000000000..780ef968ee
--- /dev/null
+++ b/lisp/leim/quail/tamil99.el
@@ -0,0 +1,200 @@
+;;; tamil99.el --- Quail package for the tamil99 input method -*- lexical-binding: t -*-
+
+;; Copyright (C) 2022 Free Software Foundation, Inc.
+;;
+;; Author: Arun Isaac <arunisaac <at> systemreboot.net>
+;; Keywords: multilingual, input method, Indian, Tamil
+
+;; This file is part of GNU Emacs.
+;;
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; Tamil99 is a keyboard layout and input method that is specifically
+;; designed for the Tamil language. Vowels and vowel modifiers are
+;; input with your left hand, and consonants are input with your right
+;; hand. See https://en.wikipedia.org/wiki/Tamil_99
+;;
+;; தமிழ்99 தமிழுக்கென்றே உருவாக்கப்பட்ட விசைப்பலகை அமைப்பும் உள்ளீட்டு முறையும்
+;; ஆகும். உயிர்களை இடக்கையுடனும் மெய்களை வலக்கையுடனும் தட்டச்சிடும்படி
+;; அமைக்கப்பட்டது. https://ta.wikipedia.org/wiki/%E0%AE%A4%E0%AE%AE%E0%AE%BF%E0%AE%B4%E0%AF%8D_99
+;; காண்க.
+;;
+;; Usage:
+;;
+;; Switch to the tamil99 input method using M-x set-input-method
+;; tamil99 RET and enjoy typing in Tamil!
+;;
+;; பயன்பாடு:
+;;
+;; tamil99 உள்ளீட்டு முறைக்கு மாற M-x set-input-method tamil99 RET கட்டளையை
+;; இயக்கித் தமிழில் தட்டச்சிட்டு மகிழ்க!
+
+;;; Code:
+
+(require 'pcase)
+(require 'quail)
+(require 'seq)
+
+(quail-define-package
+ "tamil99" "Tamil" "தமிழ்99"
+ t "Tamil99 input method"
+ nil t t t t nil nil nil nil nil t)
+
+(defconst tamil99-vowels
+ '(("q" "ஆ")
+ ("w" "ஈ")
+ ("e" "ஊ")
+ ("r" "ஐ")
+ ("t" "ஏ")
+ ("a" "அ")
+ ("s" "இ")
+ ("d" "உ")
+ ("g" "எ")
+ ("z" "ஔ")
+ ("x" "ஓ")
+ ("c" "ஒ"))
+ "Mapping for vowels.")
+
+(defconst tamil99-vowel-modifiers
+ '(("q" "ா")
+ ("w" "ீ")
+ ("e" "ூ")
+ ("r" "ை")
+ ("t" "ே")
+ ("a" "")
+ ("s" "ி")
+ ("d" "ு")
+ ("g" "ெ")
+ ("z" "ௌ")
+ ("x" "ோ")
+ ("c" "ொ")
+ ("f" "்"))
+ "Mapping for vowel modifiers.")
+
+(defconst tamil99-vallinam-consonants
+ '(("h" "க")
+ ("[" "ச")
+ ("o" "ட")
+ ("l" "த")
+ ("j" "ப")
+ ("u" "ற"))
+ "Mapping for vallinam consonants.")
+
+(defconst tamil99-mellinam-consonants
+ '(("b" "ங")
+ ("]" "ஞ")
+ ("p" "ண")
+ (";" "ந")
+ ("k" "ம")
+ ("i" "ன"))
+ "Mapping for mellinam consonants.")
+
+(defconst tamil99-idaiinam-consonants
+ '(("'" "ய")
+ ("m" "ர")
+ ("n" "ல")
+ ("v" "வ")
+ ("/" "ழ")
+ ("y" "ள"))
+ "Mapping for idaiinam consonants.")
+
+(defconst tamil99-grantham-consonants
+ '(("Q" "ஸ")
+ ("W" "ஷ")
+ ("E" "ஜ")
+ ("R" "ஹ"))
+ "Mapping for grantham consonants.")
+
+(defconst tamil99-consonants
+ (append tamil99-vallinam-consonants
+ tamil99-mellinam-consonants
+ tamil99-idaiinam-consonants
+ tamil99-grantham-consonants)
+ "Mapping for all consonants.")
+
+(defconst tamil99-other
+ `(("T" ,(vector "க்ஷ"))
+ ("Y" ,(vector "ஶஂரீ"))
+ ("O" "[")
+ ("P" "]")
+ ("A" "௹")
+ ("S" "௺")
+ ("D" "௸")
+ ("F" "ஃ")
+ ("K" "\"")
+ ("L" ":")
+ (":" ";")
+ ("\"" "'")
+ ("Z" "௳")
+ ("X" "௴")
+ ("C" "௵")
+ ("V" "௶")
+ ("B" "௷")
+ ("M" "/"))
+ "Mapping for miscellaneous characters.")
+
+(defun tamil99-install ()
+ "Install tamil99 input method."
+ (quail-define-rules)
+ ;; உயிர்
+ ;; vowel
+ (mapc (pcase-lambda (`(,vowel-key ,vowel))
+ (quail-defrule vowel-key vowel))
+ tamil99-vowels)
+ (mapc (pcase-lambda (`(,consonant-key ,consonant))
+ ;; அகர உயிர்மெய்
+ ;; consonant with agaram (அ)
+ (quail-defrule consonant-key consonant)
+ ;; மெய்யொற்று பின் அகர உயிர்மெய்
+ ;; pulli on double consonant
+ (quail-defrule (concat consonant-key consonant-key)
+ (vector (concat consonant "்" consonant)))
+ (mapc (pcase-lambda (`(,vowel-key ,vowel-modifier))
+ ;; உயிர்மெய்
+ ;; vowel+consonant
+ (quail-defrule (concat consonant-key vowel-key)
+ (vector (concat consonant vowel-modifier)))
+ ;; மெய்யொற்று பின் உயிர்மெய்
+ ;; vowel+consonant after double consonant
+ (quail-defrule (concat consonant-key consonant-key vowel-key)
+ (vector (concat consonant "்" consonant vowel-modifier))))
+ tamil99-vowel-modifiers))
+ tamil99-consonants)
+ (seq-mapn (pcase-lambda (`(,mellinam-consonant-key ,mellinam-consonant)
+ `(,vallinam-consonant-key ,vallinam-consonant))
+ ;; மெல்லினம் பின் வல்லினம்
+ ;; vallinam after mellinam
+ (quail-defrule (concat mellinam-consonant-key vallinam-consonant-key)
+ (vector (concat mellinam-consonant "்" vallinam-consonant)))
+ (mapc (pcase-lambda (`(,vowel-key ,vowel-modifier))
+ ;; மெல்லின ஒற்றொட்டிய வல்லினம் பின் உயிர்மெய்
+ ;; vowel+consonant after mellinam-vallinam consonant
+ (quail-defrule (concat mellinam-consonant-key vallinam-consonant-key vowel-key)
+ (vector (concat mellinam-consonant "்" vallinam-consonant vowel-modifier))))
+ tamil99-vowel-modifiers))
+ tamil99-mellinam-consonants
+ tamil99-vallinam-consonants)
+ ;; பிற வரியுருக்கள்
+ ;; other characters
+ (mapc (pcase-lambda (`(,key ,translation))
+ (quail-defrule key translation))
+ tamil99-other))
+
+(tamil99-install)
+
+(provide 'tamil99)
+
+;;; tamil99.el ends here
--
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