bug#55869: [PATCH] Add support for the Lepcha script

bug#55869: [PATCH] Add support for the Lepcha script

[समीर सिंह Sameer Singh]

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The Lepcha script is added to Emacs this time.
I have also adjusted some whitespace in the newly added Kharoshthi language
environment.

Please review the patch
Thank You.

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From 746772b9a572254215ea5dc2798023fc9e47fa87 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E0=A4=B8=E0=A4=AE=E0=A5=80=E0=A4=B0=20=E0=A4=B8=E0=A4=BF?=
 =?UTF-8?q?=E0=A4=82=E0=A4=B9=20Sameer=20Singh?= <lumarzeli30@gmail.com>
Date: Thu, 9 Jun 2022 19:54:10 +0530
Subject: [PATCH] Add support for the Lepcha script

* lisp/language/indian.el ("Lepcha"): New language environment.
Add composition rules for Lepcha. Add sample text and input method.
* lisp/language/misc-lang.el ("Kharoshthi"): Adjust whitespace.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Lepcha.
* lisp/leim/quail/indian.el ("lepcha"): New input method.

* etc/HELLO: Add a Lepcha greeting.
* etc/NEWS: Announce the new language environment.
---
 etc/HELLO                     |  1 +
 etc/NEWS                      |  1 +
 lisp/international/fontset.el |  2 +
 lisp/language/indian.el       | 25 ++++++++++
 lisp/language/misc-lang.el    | 12 ++---
 lisp/leim/quail/indian.el     | 93 +++++++++++++++++++++++++++++++++++
 6 files changed, 128 insertions(+), 6 deletions(-)

diff --git a/etc/HELLO b/etc/HELLO
index 8787a6e0ae..e53bf74f4d 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -76,6 +76,7 @@ Kharoṣṭhī (𐨑𐨪𐨆𐨛𐨁)	𐨣𐨨𐨲𐨪𐨆 𐨐𐨪𐨅𐨨𐨁
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
 Lao (ພາສາລາວ)	ສະບາຍດີ / ຂໍໃຫ້ໂຊກດີ
+Lepcha (ᰛᰩᰵ)	ᰂᰦᰕᰥᰬ
 Limbu (ᤕᤰᤌᤢᤱ ᤐᤠᤴ)	ᤛᤣᤘᤠᤖᤥ
 Makasar (𑻪𑻢𑻪𑻢)	𑻦𑻤𑻵𑻱
 Malayalam (മലയാളം)	നമസ്കാരം
diff --git a/etc/NEWS b/etc/NEWS
index 9fc8a74419..434525cbf2 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -864,6 +864,7 @@ corresponding language environments are:
 **** Hanifi Rohingya script and language environment
 **** Grantha script and language environment
 **** Kharoshthi script and language environment
+**** Lepcha script and language environment
 
 ---
 *** The "Oriya" language environment was renamed to "Odia".
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 44421a96da..273cba8d63 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -193,6 +193,7 @@ font-encoding-charset-alist
         (balinese #x1B13 #x1B35 #x1B5E)
         (sundanese #x1B8A #x1BAB #x1CC4)
         (batak #x1BC2 #x1BE7 #x1BFF)
+        (lepcha #x1C00 #x1C24 #x1C40)
         (tai-le #x1950)
         (tai-lue #x1980)
         (tai-tham #x1A20 #x1A55 #x1A61 #x1A80)
@@ -767,6 +768,7 @@ setup-default-fontset
                     balinese
                     sundanese
                     batak
+                    lepcha
 		    symbol
 		    braille
 		    yi
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index 9329b43fea..a6f50962d8 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -244,6 +244,17 @@ 'devanagari
 Grantha script, are supported in this language environment."))
  '("Indian"))
 
+(set-language-info-alist
+ "Lepcha" '((charset unicode)
+            (coding-system utf-8)
+            (coding-priority utf-8)
+            (input-method . "lepcha")
+            (sample-text . "Lepcha (ᰛᰩᰵ)	ᰂᰦᰕᰥᰬ")
+            (documentation . "\
+Lepcha language and its script are supported in this
+language environment."))
+ '("Indian"))
+
 ;; Replace mnemonic characters in REGEXP according to TABLE.  TABLE is
 ;; an alist of (MNEMONIC-STRING . REPLACEMENT-STRING).
 
@@ -734,5 +745,19 @@ malayalam-composable-pattern
                                        "?" avagraha "?")
                                1 'font-shape-gstring))))
 
+;; Lepcha composition rules
+(let ((consonant            "[\x1C00-\x1C23\x1C4D-\x1C4F]")
+      (vowel                "[\x1C26-\x1C2C]")
+      (subjoined-letter     "[\x1C24\x1C25]")
+      (consonant-sign       "[\x1C2D-\x1C35]")
+      (other-signs          "[\x1C36\x1C37]"))
+  (set-char-table-range composition-function-table
+                        '(#x1C24 . #x1C37)
+                        (list (vector
+                               ;; Consonant based syllables
+                               (concat consonant other-signs "?" vowel "?"
+                                       consonant-sign "?" subjoined-letter "?")
+                               1 'font-shape-gstring))))
+
 (provide 'indian)
 ;;; indian.el ends here
diff --git a/lisp/language/misc-lang.el b/lisp/language/misc-lang.el
index e0e7add158..1e915c2f83 100644
--- a/lisp/language/misc-lang.el
+++ b/lisp/language/misc-lang.el
@@ -242,11 +242,11 @@ egyptian-shape-grouping
 
 (set-language-info-alist
  "Kharoshthi" '((charset unicode)
-	           (coding-system utf-8)
-	           (coding-priority utf-8)
-	           (input-method . "kharoshthi")
-               (sample-text . "Kharoṣṭhī (𐨑𐨪𐨆𐨛𐨁)	𐨣𐨨𐨲𐨪𐨆 𐨐𐨪𐨅𐨨𐨁")
-	           (documentation . "\
+	        (coding-system utf-8)
+	        (coding-priority utf-8)
+	        (input-method . "kharoshthi")
+                (sample-text . "Kharoṣṭhī (𐨑𐨪𐨆𐨛𐨁)	𐨣𐨨𐨲𐨪𐨆 𐨐𐨪𐨅𐨨𐨁")
+	        (documentation . "\
 Language environment for Gāndhārī, Sanskrit, and other languages
 using the Kharoṣṭhī script.")))
 
@@ -255,7 +255,7 @@ egyptian-shape-grouping
       (virama        "\U00010A3F")
       (modifier      "[\U00010A0C-\U00010A0F\U00010A38-\U00010A3A]"))
   (set-char-table-range composition-function-table
-		                '(#x10A3F . #x10A3F)
+		        '(#x10A3F . #x10A3F)
                         (list
                          (vector
                           (concat consonant
diff --git a/lisp/leim/quail/indian.el b/lisp/leim/quail/indian.el
index 6a3582e83d..bc61a312fa 100644
--- a/lisp/leim/quail/indian.el
+++ b/lisp/leim/quail/indian.el
@@ -1771,4 +1771,97 @@ "||"
  ("`m" ?𑌁)
  ("`M" ?𑌀))
 
+(quail-define-package
+ "lepcha" "Lepcha" "ᰛᰩᰵ" t "Lepcha phonetic input method.
+
+ `\\=`' is used to switch levels instead of Alt-Gr."
+ nil t t t t nil nil nil nil nil t)
+
+(quail-define-rules
+ ("``" ?₹)
+ ("1"  ?᱁)
+ ("`1" ?1)
+ ("2"  ?᱂)
+ ("`2" ?2)
+ ("3"  ?᱃)
+ ("`3" ?3)
+ ("4"  ?᱄)
+ ("`4" ?4)
+ ("5"  ?᱅)
+ ("`5" ?5)
+ ("6"  ?᱆)
+ ("`6" ?6)
+ ("7"  ?᱇)
+ ("`7" ?7)
+ ("8"  ?᱈)
+ ("`8" ?8)
+ ("9"  ?᱉)
+ ("`9" ?9)
+ ("0"  ?᱀)
+ ("`0" ?0)
+ ("`\\" ?᰻)
+ ("`|" ?᰼)
+ ("`"  ?ᱍ)
+ ("q"  ?ᱍ)
+ ("Q"  ?ᱎ)
+ ("`q" ?᰽)
+ ("`Q" ?᰾)
+ ("w"  ?ᰢ)
+ ("W"  ?ᱏ)
+ ("`w" ?᰿)
+ ("e"  ?ᰬ)
+ ("r"  ?ᰛ)
+ ("R"  ?ᰥ)
+ ("`r" ?ᰲ)
+ ("t"  ?ᰊ)
+ ("T"  ?ᰋ)
+ ("`t" ?ᰳ)
+ ("y"  ?ᰚ)
+ ("Y"  ?ᰤ)
+ ("u"  ?ᰪ)
+ ("U"  ?ᰫ)
+ ("i"  ?ᰧ)
+ ("o"  ?ᰨ)
+ ("O"  ?ᰩ)
+ ("p"  ?ᰎ)
+ ("P"  ?ᰏ)
+ ("`p" ?ᰐ)
+ ("`P" ?ᰱ)
+ ("a"  ?ᰦ)
+ ("A"  ?ᰣ)
+ ("s"  ?ᰠ)
+ ("S"  ?ᰡ)
+ ("d"  ?ᰌ)
+ ("f"  ?ᰑ)
+ ("F"  ?ᰒ)
+ ("g"  ?ᰃ)
+ ("G"  ?ᰄ)
+ ("h"  ?ᰝ)
+ ("H"  ?ᰞ)
+ ("j"  ?ᰈ)
+ ("k"  ?ᰀ)
+ ("K"  ?ᰁ)
+ ("`k" ?ᰂ)
+ ("`K" ?ᰭ)
+ ("l"  ?ᰜ)
+ ("L"  ?ᰯ)
+ ("z"  ?ᰉ)
+ ("Z"  ?ᰅ)
+ ("`z" ?ᰴ)
+ ("`Z" ?ᰵ)
+ ("x"  ?ᰶ)
+ ("X"  ?᰷)
+ ("c"  ?ᰆ)
+ ("C"  ?ᰇ)
+ ("`c" #x200C)  ; ZWNJ
+ ("v"  ?ᰟ)
+ ("b"  ?ᰓ)
+ ("B"  ?ᰔ)
+ ("n"  ?ᰍ)
+ ("N"  ?ᰰ)
+ ("m"  ?ᰕ)
+ ("M"  ?ᰖ)
+ ("`m"  ?ᰮ))
+
+(provide 'indian)
 ;;; indian.el ends here
-- 
2.36.1

bug#55869: [PATCH] Add support for the Lepcha script

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh
>  <lumarzeli30@gmail.com>
> Date: Thu, 9 Jun 2022 19:59:51 +0530
> 
> The Lepcha script is added to Emacs this time.
> I have also adjusted some whitespace in the newly added Kharoshthi language environment.

Thanks, I installed this.

> +Lepcha (ᰛᰩᰵ)	ᰂᰦᰕᰥᰬ

Can you tell where did you take this name of the script (or is it the
language)?  Both Wikipedia and the Omniglot pages show names that look
differently and are written with different codepoints.

bug#55869: [PATCH] Add support for the Lepcha script

[समीर सिंह Sameer Singh]

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>Thanks, I installed this.

great, thank you!

>> +Lepcha (ᰛᰩᰵ) ᰂᰦᰕᰥᰬ

>Can you tell where did you take this name of the script (or is it >the language)?
Both Wikipedia and the Omniglot pages show >names that look differently and
are written with different >codepoints.

I copied the name from the infobox in the Wikipedia page for the Lepcha
script (https://en.m.wikipedia.org/wiki/Lepcha_script) it says "Rong" which
is one of the native name of the script, one other name is "Rong Ring"
which is written in the image of the Wikipedia infobox and also in the
omniglot website (https://omniglot.com/writing/lepcha.htm) both are correct.
(Atleast according to these websites)

Also if you have some trouble deciphering what a script says try using this
nice website: aksharamukha.appspot.com/ for transliteration to a script
familiar to you.
I also plan to implement a functionality like this in Emacs, though that
will take some time.

शनि, 11 जून 2022, 2:47 pm को Eli Zaretskii <eliz@gnu.org> ने लिखा:

> > From: समीर सिंह Sameer Singh
> >  <lumarzeli30@gmail.com>
> > Date: Thu, 9 Jun 2022 19:59:51 +0530
> >
> > The Lepcha script is added to Emacs this time.
> > I have also adjusted some whitespace in the newly added Kharoshthi
> language environment.
>
> Thanks, I installed this.
>
> > +Lepcha (ᰛᰩᰵ) ᰂᰦᰕᰥᰬ
>
> Can you tell where did you take this name of the script (or is it the
> language)?  Both Wikipedia and the Omniglot pages show names that look
> differently and are written with different codepoints.
>

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bug#55869: [PATCH] Add support for the Lepcha script

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> Date: Sat, 11 Jun 2022 15:01:44 +0530
> Cc: 55869-done@debbugs.gnu.org
> 
> >Can you tell where did you take this name of the script (or is it >the language)?  Both Wikipedia and the
> Omniglot pages show >names that look differently and are written with different >codepoints.
> 
> I copied the name from the infobox in the Wikipedia page for the Lepcha script
> (https://en.m.wikipedia.org/wiki/Lepcha_script) it says "Rong" which is one of the native name of the script,
> one other name is "Rong Ring"  which is written in the image of the Wikipedia infobox and also in the
> omniglot website (https://omniglot.com/writing/lepcha.htm) both are correct.
> (Atleast according to these websites)

The question is: what should we use?  Maybe using what is actually
shown (as opposed to transliterated) is better?

bug#55869: [PATCH] Add support for the Lepcha script

[समीर सिंह Sameer Singh]

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I am sorry, I do not understand the question, I have not used a
transliterated name for the Lepcha script.

If you are asking whether to use ᰛᰩᰵ (Róng) or ᰛᰩᰵᰛᰧᰵᰶ (Róng-ríng), I think
both are fine.

Looking around for videos of native speakers I found these:
1. https://youtu.be/syNb4rXDRjI?t=26 Here at 26 sec, Mr. PT Lepcha uses
"Rong Mingjot" for "Rong Alphabet" (atleast AFAICT, because I could not
find "Mingjot" in a dictionary (
https://upload.wikimedia.org/wikipedia/commons/b/ba/Dictionary_of_the_Lepcha-language_%28IA_cu31924023194198%29.pdf
))

2. https://youtu.be/fHlvOhyN7Tg?t=22 Here again at 22 sec, "Rong Mingjot"
is used.

3. https://www.youtube.com/shorts/ERmC9G1FlNk Here Eliyas uses both Róng
(in native script) and Róng-ríng (in lepcha script).

The omniglot website also describes other name for this script:

> The Lepcha script is known as ᰀᰂ (kakha - the first two letters), ᰇᰨᰕᰧᰵᰶ
> (chomíng - "written letters") or ᰕᰧᰵᰶᰙᰳ (míngzât - "treasure of letters").
>

शनि, 11 जून 2022, 3:30 pm को Eli Zaretskii <eliz@gnu.org> ने लिखा:

> > From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> > Date: Sat, 11 Jun 2022 15:01:44 +0530
> > Cc: 55869-done@debbugs.gnu.org
> >
> > >Can you tell where did you take this name of the script (or is it >the
> language)?  Both Wikipedia and the
> > Omniglot pages show >names that look differently and are written with
> different >codepoints.
> >
> > I copied the name from the infobox in the Wikipedia page for the Lepcha
> script
> > (https://en.m.wikipedia.org/wiki/Lepcha_script) it says "Rong" which is
> one of the native name of the script,
> > one other name is "Rong Ring"  which is written in the image of the
> Wikipedia infobox and also in the
> > omniglot website (https://omniglot.com/writing/lepcha.htm) both are
> correct.
> > (Atleast according to these websites)
>
> The question is: what should we use?  Maybe using what is actually
> shown (as opposed to transliterated) is better?
>

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bug#55869: [PATCH] Add support for the Lepcha script

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> Date: Sat, 11 Jun 2022 16:04:43 +0530
> Cc: 55869@debbugs.gnu.org
> 
> I am sorry, I do not understand the question, I have not used a transliterated name for the Lepcha script.
> 
> If you are asking whether to use ᰛᰩᰵ (Róng) or ᰛᰩᰵᰛᰧᰵᰶ (Róng-ríng), I think both are fine.

Yes, that is my question.  I understand that both are probably fine,
but I'm asking whether we should use what appears on two widely-used
sites.  IOW, why prefer the version that doesn't appear there, if both
versions are equally correct?

> The omniglot website also describes other name for this script:
> 
>  The Lepcha script is known as ᰀᰂ (kakha - the first two letters), ᰇᰨᰕᰧᰵᰶ (chomíng - "written
>  letters") or ᰕᰧᰵᰶᰙᰳ (míngzât - "treasure of letters"). 

Yes, but Wikipedia doesn't, so I think Róng-ríng wins here.

bug#55869: [PATCH] Add support for the Lepcha script

[समीर सिंह Sameer Singh]

[-- Attachment #1.1: Type: text/plain, Size: 1140 bytes --]

Here is the new patch.
I have also improved the Lepcha composition rules.

On Sat, Jun 11, 2022 at 4:20 PM Eli Zaretskii <eliz@gnu.org> wrote:

> > From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> > Date: Sat, 11 Jun 2022 16:04:43 +0530
> > Cc: 55869@debbugs.gnu.org
> >
> > I am sorry, I do not understand the question, I have not used a
> transliterated name for the Lepcha script.
> >
> > If you are asking whether to use ᰛᰩᰵ (Róng) or ᰛᰩᰵᰛᰧᰵᰶ (Róng-ríng), I
> think both are fine.
>
> Yes, that is my question.  I understand that both are probably fine,
> but I'm asking whether we should use what appears on two widely-used
> sites.  IOW, why prefer the version that doesn't appear there, if both
> versions are equally correct?
>
> > The omniglot website also describes other name for this script:
> >
> >  The Lepcha script is known as ᰀᰂ (kakha - the first two letters),
> ᰇᰨᰕᰧᰵᰶ (chomíng - "written
> >  letters") or ᰕᰧᰵᰶᰙᰳ (míngzât - "treasure of letters").
>
> Yes, but Wikipedia doesn't, so I think Róng-ríng wins here.
>

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From 19b7ac78ab1bfe51d7a1c74fe9a282e282eac726 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E0=A4=B8=E0=A4=AE=E0=A5=80=E0=A4=B0=20=E0=A4=B8=E0=A4=BF?=
 =?UTF-8?q?=E0=A4=82=E0=A4=B9=20Sameer=20Singh?= <lumarzeli30@gmail.com>
Date: Sat, 11 Jun 2022 16:48:44 +0530
Subject: [PATCH] Improve Lepcha composition rules and rename its native name

* lisp/language/indian.el ("Lepcha"): Rename lepcha script
native name and improve composition rules.

* etc/HELLO: Rename Lepcha script native name.
---
 etc/HELLO               | 2 +-
 lisp/language/indian.el | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/etc/HELLO b/etc/HELLO
index e53bf74f4d..baa8af0f07 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -76,7 +76,7 @@ Kharoṣṭhī (𐨑𐨪𐨆𐨛𐨁)	𐨣𐨨𐨲𐨪𐨆 𐨐𐨪𐨅𐨨𐨁
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
 Lao (ພາສາລາວ)	ສະບາຍດີ / ຂໍໃຫ້ໂຊກດີ
-Lepcha (ᰛᰩᰵ)	ᰂᰦᰕᰥᰬ
+Lepcha (ᰛᰩᰵᰛᰧᰵᰶ)	ᰂᰦᰕᰥᰬ
 Limbu (ᤕᤰᤌᤢᤱ ᤐᤠᤴ)	ᤛᤣᤘᤠᤖᤥ
 Makasar (𑻪𑻢𑻪𑻢)	𑻦𑻤𑻵𑻱
 Malayalam (മലയാളം)	നമസ്കാരം
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index a6f50962d8..6e0fb10b4f 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -249,7 +249,7 @@ 'devanagari
             (coding-system utf-8)
             (coding-priority utf-8)
             (input-method . "lepcha")
-            (sample-text . "Lepcha (ᰛᰩᰵ)	ᰂᰦᰕᰥᰬ")
+            (sample-text . "Lepcha (ᰛᰩᰵᰛᰧᰵᰶ)	ᰂᰦᰕᰥᰬ")
             (documentation . "\
 Lepcha language and its script are supported in this
 language environment."))
@@ -756,7 +756,8 @@ malayalam-composable-pattern
                         (list (vector
                                ;; Consonant based syllables
                                (concat consonant other-signs "?" vowel "?"
-                                       consonant-sign "?" subjoined-letter "?")
+                                       consonant-sign "?" subjoined-letter "?"
+                                       other-signs "?")
                                1 'font-shape-gstring))))
 
 (provide 'indian)
-- 
2.36.1

bug#55869: [PATCH] Add support for the Lepcha script

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> Date: Sat, 11 Jun 2022 16:55:47 +0530
> Cc: 55869@debbugs.gnu.org
> 
> Here is the new patch.
> I have also improved the Lepcha composition rules.

Thanks, installed.

bug#55869: [PATCH] Add support for the Lepcha script

[समीर सिंह Sameer Singh]

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Thank you!

शनि, 11 जून 2022, 6:49 pm को Eli Zaretskii <eliz@gnu.org> ने लिखा:

> > From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> > Date: Sat, 11 Jun 2022 16:55:47 +0530
> > Cc: 55869@debbugs.gnu.org
> >
> > Here is the new patch.
> > I have also improved the Lepcha composition rules.
>
> Thanks, installed.
>

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