[PATCH] Add the Kaithi script to Emacs

[PATCH] Add the Kaithi script to Emacs

[समीर सिंह Sameer Singh]

[-- Attachment #1.1: Type: text/plain, Size: 209 bytes --]

I have finally received my copyright assignment (RT:1831638)
With that I can begin my work to include various writing scripts to Emacs.

I have added the Kaithi script this time.
Please check for any mistakes

[-- Attachment #1.2: Type: text/html, Size: 290 bytes --]

[-- Attachment #2: 0001-Add-the-Kaithi-script-to-Emacs.patch --]
[-- Type: text/x-patch, Size: 7200 bytes --]

From a2d472cd8c30dd3eca54f514e3e89d239abb881a 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: Wed, 4 May 2022 18:10:06 +0530
Subject: [PATCH] Add the Kaithi script to Emacs

* lisp/language/indian.el ("Kaithi"): New language environment.
Add composition rules for Kaithi.
Add sample text and input method.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Kaithi.
* lisp/leim/quail/indian.el ("kaithi"): New input method.

* etc/HELLO: Add a Kaithi greeting.
* etc/NEWS: Announce the new language environment and its input method.
---
 etc/HELLO                     |   2 +
 etc/NEWS                      |   6 ++
 lisp/international/fontset.el |   2 +
 lisp/language/indian.el       |  36 ++++++++++++
 lisp/leim/quail/indian.el     | 101 ++++++++++++++++++++++++++++++++++
 5 files changed, 147 insertions(+)

diff --git a/etc/HELLO b/etc/HELLO
index dbbcc0493b..351e2dc4cd 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -59,6 +59,8 @@ Hindi (हिंदी)	नमस्ते / नमस्कार ।
 Inuktitut (ᐃᓄᒃᑎᑐᑦ)	ᐊᐃ
 Italian (italiano)	Ciao / Buon giorno
 Javanese (ꦧꦱꦗꦮꦶ)	console.log("ꦲꦭꦺꦴ");
+
+Kaithi (𑂍𑂶𑂟𑂲)                              𑂩𑂰𑂧𑂩𑂰𑂧
 Kannada (ಕನ್ನಡ)	ನಮಸ್ಕಾರ
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
diff --git a/etc/NEWS b/etc/NEWS
index 15c7ce8a90..36a8329658 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -704,6 +704,12 @@ This language environment supports Brahmi, which is a historical
 script that was used in ancient South Asia.  A new input method,
 'brahmi', is provided to type text in this script.
 
+*** New language environment "Kaithi".
+This language environment supports Kaithi or Kayasthi, which was
+an important writing system of the past mainly used for administrative
+purposes. A new input method, 'kaithi', is provided to type text in
+this script.
+
 \f
 * Changes in Specialized Modes and Packages in Emacs 29.1
 
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 883f08905e..5bfa085b1b 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -232,6 +232,7 @@ font-encoding-charset-alist
 	(elymaic #x10FE0)
 	(old-uyghur #x10F70)
         (brahmi #x11013 #x11045 #x11052 #x11065)
+        (kaithi #x1108D)
 	(mahajani #x11150)
 	(khojki #x11200)
 	(khudawadi #x112B0)
@@ -599,6 +600,7 @@ setup-default-fontset
      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlm2 nil (akhn)))
                 ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
+     (kaithi ,(font-spec :registry "iso10646-1" :otf '(kthi nil (rphf))))
 
      (burmese ,(font-spec :registry "iso10646-1" :otf '(mym2 nil nil))
               ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index c3d59b6f77..82a392e856 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -136,6 +136,17 @@ 'devanagari
 The ancient Brahmi script is supported in this language environment."))
  '("Indian"))                           ; Should we have an "Old" category?
 
+(set-language-info-alist
+ "Kaithi" '((charset unicode)
+            (coding-system utf-8)
+            (coding-priority utf-8)
+            (input-method . "kaithi")
+            (sample-text . "Kaithi (𑂍𑂶𑂟𑂲)        𑂩𑂰𑂧𑂩𑂰𑂧")
+            (documentation . "\
+Such languages which used Kaithi script such as Awadhi, Bhojpuri, Magahi and
+Maithili are supported in this language environment."))
+ '("Indian"))
+
 
 ;; Replace mnemonic characters in REGEXP according to TABLE.  TABLE is
 ;; an alist of (MNEMONIC-STRING . REPLACEMENT-STRING).
@@ -421,6 +432,31 @@ malayalam-composable-pattern
                                (concat multiplier number-joiner numeral)
                                1 'font-shape-gstring))))
 
+;; Kaithi composition rules
+(let ((consonant "[\x1108D-\x110AF]")
+      (nukta "\x110BA")
+      (vowel "[\x1108D-\x110C2]")
+      (anusvara-candrabindu "[\x11080\x11081]")
+      (virama "\x110B9")
+      (number-sign "\x110BD")
+      (number-sign-above "\x110CD")
+      (numerals "[\x966-\x96F]+"))
+  (set-char-table-range composition-function-table
+                        '(#x110B0 . #x110BA)
+                        (list (vector
+                               (concat consonant nukta "?\\(?:" virama consonant nukta "?\\)*\\(?:" virama "\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")
+                               1 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110BD . #x110BD)
+                        (list (vector
+                               (concat number-sign numerals)
+                               0 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110CD . #x110CD)
+                        (list (vector
+                               (concat number-sign-above numerals)
+                               0 'font-shape-gstring))))
+
 (provide 'indian)
 
 ;;; indian.el ends here
diff --git a/lisp/leim/quail/indian.el b/lisp/leim/quail/indian.el
index f2d5f9bad4..a52d44bc08 100644
--- a/lisp/leim/quail/indian.el
+++ b/lisp/leim/quail/indian.el
@@ -835,5 +835,106 @@ "||"
  ("`/" ?𑁿)
  )
 
+(quail-define-package
+ "kaithi" "Kaithi" "𑂍𑂶" t "Kaithi 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"  ?१)
+("`1" ?1)
+("2"  ?२)
+("`2" ?2)
+("3"  ?३)
+("`3" ?3)
+("4"  ?४)
+("`4" ?4)
+("5"  ?५)
+("`5" ?5)
+("6"  ?६)
+("`6" ?6)
+("7"  ?७)
+("`7" ?7)
+("8"  ?८)
+("`8" ?8)
+("9"  ?९)
+("0"  ?०)
+("`0" ?0)
+("`\)" ?𑂻)
+("`\\" ?𑃀)
+("`|" ?𑃁)
+("`"  ?𑂗)
+("q"  ?𑂗)
+("Q"  ?𑂘)
+("w"  ?𑂙)
+("W"  ?𑂛)
+("`w" ?𑂚)
+("`W" ?𑂜)
+("e"  ?𑂵)
+("E"  ?𑂶)
+("`e" ?𑂉)
+("`E" ?𑂊)
+("r"  ?𑂩)
+("R"  ?𑃂)
+("t"  ?𑂞)
+("T"  ?𑂟)
+("y"  ?𑂨)
+("Y"  ?⸱)
+("u"  ?𑂳)
+("U"  ?𑂴)
+("`u" ?𑂇)
+("`U" ?𑂈)
+("i"  ?𑂱)
+("I"  ?𑂲)
+("`i" ?𑂅)
+("`I" ?𑂆)
+("o"  ?𑂷)
+("O"  ?𑂸)
+("`o" ?𑂋)
+("`O" ?𑂌)
+("p"  ?𑂣)
+("P"  ?𑂤)
+("a"  ?𑂰)
+("A"  ?𑂄)
+("`a" ?𑂃)
+("s"  ?𑂮)
+("S"  ?𑂬)
+("d"  ?𑂠)
+("D"  ?𑂡)
+("`d" ?𑂼)
+("`D" #x110BD) ; Kaithi Number Sign
+("f"  ?𑂹)
+("F" #x110CD) ; Kaithi Number Sign Above
+("`f" ?𑂾)
+("`F" ?𑂿)
+("g"  ?𑂏)
+("G"  ?𑂐)
+("h"  ?𑂯)
+("H"  ?𑂂)
+("j"  ?𑂔)
+("J"  ?𑂕)
+("k"  ?𑂍)
+("K"  ?𑂎)
+("l"  ?𑂪)
+("z"  ?𑂖)
+("Z"  ?𑂑)
+("x"  ?𑂭)
+("X"  ?𑂺)
+("c"  ?𑂒)
+("C"  ?𑂓)
+("`c" #x200C)  ; ZWNJ
+("`C" #x200D)  ; ZWJ
+("v"  ?𑂫)
+("b"  ?𑂥)
+("B"  ?𑂦)
+("n"  ?𑂢)
+("N"  ?𑂝)
+("m"  ?𑂧)
+("M"  ?𑂁)
+("`m" ?𑂀)
+)
+
 
 ;;; indian.el ends here
-- 
2.36.0

Re: [PATCH] Add the Kaithi script to Emacs

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh
>  <lumarzeli30@gmail.com>
> Date: Sat, 7 May 2022 02:32:06 +0530
> 
> I have added the Kaithi script this time.
> Please check for any mistakes

Thanks.

> diff --git a/etc/HELLO b/etc/HELLO
> index dbbcc0493b..351e2dc4cd 100644
> --- a/etc/HELLO
> +++ b/etc/HELLO
> @@ -59,6 +59,8 @@ Hindi (हिंदी)	नमस्ते / नमस्कार ।
>  Inuktitut (ᐃᓄᒃᑎᑐᑦ)	ᐊᐃ
>  Italian (italiano)	Ciao / Buon giorno
>  Javanese (ꦧꦱꦗꦮꦶ)	console.log("ꦲꦭꦺꦴ");
> +
> +Kaithi (𑂍𑂶𑂟𑂲)                              𑂩𑂰𑂧𑂩𑂰𑂧

The text in parenthesis should be the name of the script spelled in
the script itself, followed by a single TAB, and then one or more
greetings in language(s) that use(s) the script.  Does the above
follow this pattern?  I see that you used spaces instead of TAB, which
is incorrect.

> +*** New language environment "Kaithi".
> +This language environment supports Kaithi or Kayasthi, which was
> +an important writing system of the past mainly used for administrative
> +purposes. A new input method, 'kaithi', is provided to type text in

Please leave 2 spaces between sentences in documentation, per US
English rules we use.

> diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
> index 883f08905e..5bfa085b1b 100644
> --- a/lisp/international/fontset.el
> +++ b/lisp/international/fontset.el
> @@ -232,6 +232,7 @@ font-encoding-charset-alist
>  	(elymaic #x10FE0)
>  	(old-uyghur #x10F70)
>          (brahmi #x11013 #x11045 #x11052 #x11065)
> +        (kaithi #x1108D)

Is a single character enough to accept a font as having good coverage
of Kaithi?  If not, you can request more than one, like I did for
Brahmi.

> @@ -599,6 +600,7 @@ setup-default-fontset
>       (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
>       (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlm2 nil (akhn)))
>                  ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
> +     (kaithi ,(font-spec :registry "iso10646-1" :otf '(kthi nil (rphf))))

Is the rphf feature indeed needed for Kaithi?  If not, just add kaithi
to the list of "simple scripts" that starts around line 736 in
fontset.el, and the code there will do the rest.

> +            (documentation . "\
> +Such languages which used Kaithi script such as Awadhi, Bhojpuri, Magahi and
> +Maithili are supported in this language environment."))

"Such languages ... such as" is awkward English; please rephrase this
doc string.

> +  (set-char-table-range composition-function-table
> +                        '(#x110B0 . #x110BA)
> +                        (list (vector
> +                               (concat consonant nukta "?\\(?:" virama consonant nukta "?\\)*\\(?:" virama "\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")

Please break and reindent this long line to make it more readable.

> +("`c" #x200C)  ; ZWNJ
> +("`C" #x200D)  ; ZWJ

Are these zero-width characters used for writing in Kaithi?  If so,
should the composition rules be augmented with some rules that
mentions them?  At least ZWJ, if it has any role, should probably be
mentioned; ZWNJ most probably does its job by just being there and
preventing the other composition rules from taking effect.

Thanks.

Re: [PATCH] Add the Kaithi script to Emacs

[समीर सिंह Sameer Singh]

[-- Attachment #1.1: Type: text/plain, Size: 3778 bytes --]

Thanks a lot for the feedback!
I have made the necessary changes, please review them.

On Sat, May 7, 2022 at 11:31 AM Eli Zaretskii <eliz@gnu.org> wrote:

> > From: समीर सिंह Sameer Singh
> >  <lumarzeli30@gmail.com>
> > Date: Sat, 7 May 2022 02:32:06 +0530
> >
> > I have added the Kaithi script this time.
> > Please check for any mistakes
>
> Thanks.
>
> > diff --git a/etc/HELLO b/etc/HELLO
> > index dbbcc0493b..351e2dc4cd 100644
> > --- a/etc/HELLO
> > +++ b/etc/HELLO
> > @@ -59,6 +59,8 @@ Hindi (हिंदी)       नमस्ते / नमस्कार ।
> >  Inuktitut (ᐃᓄᒃᑎᑐᑦ)   ᐊᐃ
> >  Italian (italiano)   Ciao / Buon giorno
> >  Javanese (ꦧꦱꦗꦮꦶ)     console.log("ꦲꦭꦺꦴ");
> > +
> > +Kaithi (𑂍𑂶𑂟𑂲)                              𑂩𑂰𑂧𑂩𑂰𑂧
>
> The text in parenthesis should be the name of the script spelled in
> the script itself, followed by a single TAB, and then one or more
> greetings in language(s) that use(s) the script.  Does the above
> follow this pattern?  I see that you used spaces instead of TAB, which
> is incorrect.
>
> > +*** New language environment "Kaithi".
> > +This language environment supports Kaithi or Kayasthi, which was
> > +an important writing system of the past mainly used for administrative
> > +purposes. A new input method, 'kaithi', is provided to type text in
>
> Please leave 2 spaces between sentences in documentation, per US
> English rules we use.
>
> > diff --git a/lisp/international/fontset.el
> b/lisp/international/fontset.el
> > index 883f08905e..5bfa085b1b 100644
> > --- a/lisp/international/fontset.el
> > +++ b/lisp/international/fontset.el
> > @@ -232,6 +232,7 @@ font-encoding-charset-alist
> >       (elymaic #x10FE0)
> >       (old-uyghur #x10F70)
> >          (brahmi #x11013 #x11045 #x11052 #x11065)
> > +        (kaithi #x1108D)
>
> Is a single character enough to accept a font as having good coverage
> of Kaithi?  If not, you can request more than one, like I did for
> Brahmi.
>
> > @@ -599,6 +600,7 @@ setup-default-fontset
> >       (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil
> (akhn))))
> >       (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlm2 nil
> (akhn)))
> >                  ,(font-spec :registry "iso10646-1" :otf '(mlym nil
> (akhn))))
> > +     (kaithi ,(font-spec :registry "iso10646-1" :otf '(kthi nil
> (rphf))))
>
> Is the rphf feature indeed needed for Kaithi?  If not, just add kaithi
> to the list of "simple scripts" that starts around line 736 in
> fontset.el, and the code there will do the rest.
>
> > +            (documentation . "\
> > +Such languages which used Kaithi script such as Awadhi, Bhojpuri,
> Magahi and
> > +Maithili are supported in this language environment."))
>
> "Such languages ... such as" is awkward English; please rephrase this
> doc string.
>
> > +  (set-char-table-range composition-function-table
> > +                        '(#x110B0 . #x110BA)
> > +                        (list (vector
> > +                               (concat consonant nukta "?\\(?:" virama
> consonant nukta "?\\)*\\(?:" virama "\\|" vowel "*" nukta "?"
> anusvara-candrabindu "?\\)")
>
> Please break and reindent this long line to make it more readable.
>
> > +("`c" #x200C)  ; ZWNJ
> > +("`C" #x200D)  ; ZWJ
>
> Are these zero-width characters used for writing in Kaithi?  If so,
> should the composition rules be augmented with some rules that
> mentions them?  At least ZWJ, if it has any role, should probably be
> mentioned; ZWNJ most probably does its job by just being there and
> preventing the other composition rules from taking effect.
>
> Thanks.
>

[-- Attachment #1.2: Type: text/html, Size: 4738 bytes --]

[-- Attachment #2: 0001-Add-the-Kaithi-script-to-Emacs.patch --]
[-- Type: text/x-patch, Size: 7204 bytes --]

From a2d472cd8c30dd3eca54f514e3e89d239abb881a 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: Wed, 4 May 2022 18:10:06 +0530
Subject: [PATCH 1/2] Add the Kaithi script to Emacs

* lisp/language/indian.el ("Kaithi"): New language environment.
Add composition rules for Kaithi.
Add sample text and input method.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Kaithi.
* lisp/leim/quail/indian.el ("kaithi"): New input method.

* etc/HELLO: Add a Kaithi greeting.
* etc/NEWS: Announce the new language environment and its input method.
---
 etc/HELLO                     |   2 +
 etc/NEWS                      |   6 ++
 lisp/international/fontset.el |   2 +
 lisp/language/indian.el       |  36 ++++++++++++
 lisp/leim/quail/indian.el     | 101 ++++++++++++++++++++++++++++++++++
 5 files changed, 147 insertions(+)

diff --git a/etc/HELLO b/etc/HELLO
index dbbcc0493b..351e2dc4cd 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -59,6 +59,8 @@ Hindi (हिंदी)	नमस्ते / नमस्कार ।
 Inuktitut (ᐃᓄᒃᑎᑐᑦ)	ᐊᐃ
 Italian (italiano)	Ciao / Buon giorno
 Javanese (ꦧꦱꦗꦮꦶ)	console.log("ꦲꦭꦺꦴ");
+
+Kaithi (𑂍𑂶𑂟𑂲)                              𑂩𑂰𑂧𑂩𑂰𑂧
 Kannada (ಕನ್ನಡ)	ನಮಸ್ಕಾರ
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
diff --git a/etc/NEWS b/etc/NEWS
index 15c7ce8a90..36a8329658 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -704,6 +704,12 @@ This language environment supports Brahmi, which is a historical
 script that was used in ancient South Asia.  A new input method,
 'brahmi', is provided to type text in this script.
 
+*** New language environment "Kaithi".
+This language environment supports Kaithi or Kayasthi, which was
+an important writing system of the past mainly used for administrative
+purposes. A new input method, 'kaithi', is provided to type text in
+this script.
+
 \f
 * Changes in Specialized Modes and Packages in Emacs 29.1
 
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 883f08905e..5bfa085b1b 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -232,6 +232,7 @@ font-encoding-charset-alist
 	(elymaic #x10FE0)
 	(old-uyghur #x10F70)
         (brahmi #x11013 #x11045 #x11052 #x11065)
+        (kaithi #x1108D)
 	(mahajani #x11150)
 	(khojki #x11200)
 	(khudawadi #x112B0)
@@ -599,6 +600,7 @@ setup-default-fontset
      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlm2 nil (akhn)))
                 ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
+     (kaithi ,(font-spec :registry "iso10646-1" :otf '(kthi nil (rphf))))
 
      (burmese ,(font-spec :registry "iso10646-1" :otf '(mym2 nil nil))
               ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index c3d59b6f77..82a392e856 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -136,6 +136,17 @@ 'devanagari
 The ancient Brahmi script is supported in this language environment."))
  '("Indian"))                           ; Should we have an "Old" category?
 
+(set-language-info-alist
+ "Kaithi" '((charset unicode)
+            (coding-system utf-8)
+            (coding-priority utf-8)
+            (input-method . "kaithi")
+            (sample-text . "Kaithi (𑂍𑂶𑂟𑂲)        𑂩𑂰𑂧𑂩𑂰𑂧")
+            (documentation . "\
+Such languages which used Kaithi script such as Awadhi, Bhojpuri, Magahi and
+Maithili are supported in this language environment."))
+ '("Indian"))
+
 
 ;; Replace mnemonic characters in REGEXP according to TABLE.  TABLE is
 ;; an alist of (MNEMONIC-STRING . REPLACEMENT-STRING).
@@ -421,6 +432,31 @@ malayalam-composable-pattern
                                (concat multiplier number-joiner numeral)
                                1 'font-shape-gstring))))
 
+;; Kaithi composition rules
+(let ((consonant "[\x1108D-\x110AF]")
+      (nukta "\x110BA")
+      (vowel "[\x1108D-\x110C2]")
+      (anusvara-candrabindu "[\x11080\x11081]")
+      (virama "\x110B9")
+      (number-sign "\x110BD")
+      (number-sign-above "\x110CD")
+      (numerals "[\x966-\x96F]+"))
+  (set-char-table-range composition-function-table
+                        '(#x110B0 . #x110BA)
+                        (list (vector
+                               (concat consonant nukta "?\\(?:" virama consonant nukta "?\\)*\\(?:" virama "\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")
+                               1 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110BD . #x110BD)
+                        (list (vector
+                               (concat number-sign numerals)
+                               0 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110CD . #x110CD)
+                        (list (vector
+                               (concat number-sign-above numerals)
+                               0 'font-shape-gstring))))
+
 (provide 'indian)
 
 ;;; indian.el ends here
diff --git a/lisp/leim/quail/indian.el b/lisp/leim/quail/indian.el
index f2d5f9bad4..a52d44bc08 100644
--- a/lisp/leim/quail/indian.el
+++ b/lisp/leim/quail/indian.el
@@ -835,5 +835,106 @@ "||"
  ("`/" ?𑁿)
  )
 
+(quail-define-package
+ "kaithi" "Kaithi" "𑂍𑂶" t "Kaithi 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"  ?१)
+("`1" ?1)
+("2"  ?२)
+("`2" ?2)
+("3"  ?३)
+("`3" ?3)
+("4"  ?४)
+("`4" ?4)
+("5"  ?५)
+("`5" ?5)
+("6"  ?६)
+("`6" ?6)
+("7"  ?७)
+("`7" ?7)
+("8"  ?८)
+("`8" ?8)
+("9"  ?९)
+("0"  ?०)
+("`0" ?0)
+("`\)" ?𑂻)
+("`\\" ?𑃀)
+("`|" ?𑃁)
+("`"  ?𑂗)
+("q"  ?𑂗)
+("Q"  ?𑂘)
+("w"  ?𑂙)
+("W"  ?𑂛)
+("`w" ?𑂚)
+("`W" ?𑂜)
+("e"  ?𑂵)
+("E"  ?𑂶)
+("`e" ?𑂉)
+("`E" ?𑂊)
+("r"  ?𑂩)
+("R"  ?𑃂)
+("t"  ?𑂞)
+("T"  ?𑂟)
+("y"  ?𑂨)
+("Y"  ?⸱)
+("u"  ?𑂳)
+("U"  ?𑂴)
+("`u" ?𑂇)
+("`U" ?𑂈)
+("i"  ?𑂱)
+("I"  ?𑂲)
+("`i" ?𑂅)
+("`I" ?𑂆)
+("o"  ?𑂷)
+("O"  ?𑂸)
+("`o" ?𑂋)
+("`O" ?𑂌)
+("p"  ?𑂣)
+("P"  ?𑂤)
+("a"  ?𑂰)
+("A"  ?𑂄)
+("`a" ?𑂃)
+("s"  ?𑂮)
+("S"  ?𑂬)
+("d"  ?𑂠)
+("D"  ?𑂡)
+("`d" ?𑂼)
+("`D" #x110BD) ; Kaithi Number Sign
+("f"  ?𑂹)
+("F" #x110CD) ; Kaithi Number Sign Above
+("`f" ?𑂾)
+("`F" ?𑂿)
+("g"  ?𑂏)
+("G"  ?𑂐)
+("h"  ?𑂯)
+("H"  ?𑂂)
+("j"  ?𑂔)
+("J"  ?𑂕)
+("k"  ?𑂍)
+("K"  ?𑂎)
+("l"  ?𑂪)
+("z"  ?𑂖)
+("Z"  ?𑂑)
+("x"  ?𑂭)
+("X"  ?𑂺)
+("c"  ?𑂒)
+("C"  ?𑂓)
+("`c" #x200C)  ; ZWNJ
+("`C" #x200D)  ; ZWJ
+("v"  ?𑂫)
+("b"  ?𑂥)
+("B"  ?𑂦)
+("n"  ?𑂢)
+("N"  ?𑂝)
+("m"  ?𑂧)
+("M"  ?𑂁)
+("`m" ?𑂀)
+)
+
 
 ;;; indian.el ends here
-- 
2.36.0


[-- Attachment #3: 0002-Improve-Kaithi-support-in-Emacs.patch --]
[-- Type: text/x-patch, Size: 4774 bytes --]

From fdc687cae42e0eac948bd0968dc083c32326b420 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, 7 May 2022 16:58:35 +0530
Subject: [PATCH 2/2] Improve Kaithi support in Emacs

* lisp/language/indian.el
Rephrase the Kaithi documentation to make it less awkward.
Add zwj support to Kaithi.
* lisp/international/fontset.el
(script-representative-chars) Add more chars to Kaithi.
(setup-default-fontset) Add Kaithi to the simple scripts.

* etc/HELLO
Replace spaces with tab in the Kaithi greeting.
* etc/NEWS
Add two spaces instead of one between sentences in the Kaithi announcement.
---
 etc/HELLO                     |  2 +-
 etc/NEWS                      |  2 +-
 lisp/international/fontset.el |  4 ++--
 lisp/language/indian.el       | 18 ++++++++++--------
 4 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/etc/HELLO b/etc/HELLO
index 351e2dc4cd..ac0cb823ea 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -60,7 +60,7 @@ Inuktitut (ᐃᓄᒃᑎᑐᑦ)	ᐊᐃ
 Italian (italiano)	Ciao / Buon giorno
 Javanese (ꦧꦱꦗꦮꦶ)	console.log("ꦲꦭꦺꦴ");
 
-Kaithi (𑂍𑂶𑂟𑂲)                              𑂩𑂰𑂧𑂩𑂰𑂧
+Kaithi (𑂍𑂶𑂟𑂲)	𑂩𑂰𑂧𑂩𑂰𑂧
 Kannada (ಕನ್ನಡ)	ನಮಸ್ಕಾರ
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
diff --git a/etc/NEWS b/etc/NEWS
index 36a8329658..d8dc5c2f41 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -707,7 +707,7 @@ script that was used in ancient South Asia.  A new input method,
 *** New language environment "Kaithi".
 This language environment supports Kaithi or Kayasthi, which was
 an important writing system of the past mainly used for administrative
-purposes. A new input method, 'kaithi', is provided to type text in
+purposes.  A new input method, 'kaithi', is provided to type text in
 this script.
 
 \f
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 5bfa085b1b..66f5068cf7 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -232,7 +232,7 @@ font-encoding-charset-alist
 	(elymaic #x10FE0)
 	(old-uyghur #x10F70)
         (brahmi #x11013 #x11045 #x11052 #x11065)
-        (kaithi #x1108D)
+        (kaithi #x1108D #x110B0 #x110BD)
 	(mahajani #x11150)
 	(khojki #x11200)
 	(khudawadi #x112B0)
@@ -600,7 +600,6 @@ setup-default-fontset
      (sinhala ,(font-spec :registry "iso10646-1" :otf '(sinh nil (akhn))))
      (malayalam ,(font-spec :registry "iso10646-1" :otf '(mlm2 nil (akhn)))
                 ,(font-spec :registry "iso10646-1" :otf '(mlym nil (akhn))))
-     (kaithi ,(font-spec :registry "iso10646-1" :otf '(kthi nil (rphf))))
 
      (burmese ,(font-spec :registry "iso10646-1" :otf '(mym2 nil nil))
               ,(font-spec :registry "iso10646-1" :otf '(mymr nil nil))
@@ -774,6 +773,7 @@ setup-default-fontset
 		    elymaic
                     old-uyghur
                     brahmi
+                    kaithi
 		    makasar
                     dives-akuru
 		    cuneiform
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index 82a392e856..830f3bf8f9 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -433,18 +433,20 @@ malayalam-composable-pattern
                                1 'font-shape-gstring))))
 
 ;; Kaithi composition rules
-(let ((consonant "[\x1108D-\x110AF]")
-      (nukta "\x110BA")
-      (vowel "[\x1108D-\x110C2]")
+(let ((consonant            "[\x1108D-\x110AF]")
+      (nukta                "\x110BA")
+      (vowel                "[\x1108D-\x110C2]")
       (anusvara-candrabindu "[\x11080\x11081]")
-      (virama "\x110B9")
-      (number-sign "\x110BD")
-      (number-sign-above "\x110CD")
-      (numerals "[\x966-\x96F]+"))
+      (virama               "\x110B9")
+      (number-sign          "\x110BD")
+      (number-sign-above    "\x110CD")
+      (numerals             "[\x966-\x96F]+")
+      (zwj                  "\x200D"))
   (set-char-table-range composition-function-table
                         '(#x110B0 . #x110BA)
                         (list (vector
-                               (concat consonant nukta "?\\(?:" virama consonant nukta "?\\)*\\(?:" virama "\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")
+                               (concat consonant nukta "?\\(?:" virama zwj "?" consonant nukta "?\\)*\\(?:"
+                                       virama zwj "?\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")
                                1 'font-shape-gstring)))
   (set-char-table-range composition-function-table
                         '(#x110BD . #x110BD)
-- 
2.36.0

Re: [PATCH] Add the Kaithi script to Emacs

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> Date: Sat, 7 May 2022 17:16:58 +0530
> Cc: emacs-devel@gnu.org
> 
> Thanks a lot for the feedback!
> I have made the necessary changes, please review them.

Thanks, but please post the changes as a single patch, not a series of
patches where later patch fixes the previous one.

(Also, for the future changes you propose to Emacs, please post them
via "M-x report-emacs-bug RET", so that they are recorded by our issue
tracker.)

Re: [PATCH] Add the Kaithi script to Emacs

[समीर सिंह Sameer Singh]

[-- Attachment #1.1: Type: text/plain, Size: 947 bytes --]

>
> Thanks, but please post the changes as a single patch, not a series of
> patches where later patch fixes the previous one.

Done

(Also, for the future changes you propose to Emacs, please post them
> via "M-x report-emacs-bug RET", so that they are recorded by our issue
> tracker.)

Ok, I will keep that in mind.



On Sat, May 7, 2022 at 5:38 PM Eli Zaretskii <eliz@gnu.org> wrote:

> > From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> > Date: Sat, 7 May 2022 17:16:58 +0530
> > Cc: emacs-devel@gnu.org
> >
> > Thanks a lot for the feedback!
> > I have made the necessary changes, please review them.
>
> Thanks, but please post the changes as a single patch, not a series of
> patches where later patch fixes the previous one.
>
> (Also, for the future changes you propose to Emacs, please post them
> via "M-x report-emacs-bug RET", so that they are recorded by our issue
> tracker.)
>

[-- Attachment #1.2: Type: text/html, Size: 1775 bytes --]

[-- Attachment #2: 0001-Add-the-Kaithi-script-to-Emacs.patch --]
[-- Type: text/x-patch, Size: 7168 bytes --]

From 0258124c258e8889941342a2a161c66233cd4eb5 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, 7 May 2022 17:55:25 +0530
Subject: [PATCH] Add the Kaithi script to Emacs

* lisp/language/indian.el ("Kaithi"): New language environment.
Add composition rules for Kaithi.
Add sample text and input method.
* lisp/international/fontset.el (script-representative-chars)
(setup-default-fontset): Support Kaithi.
* lisp/leim/quail/indian.el ("kaithi"): New input method.

* etc/HELLO: Add a Kaithi greeting.
* etc/NEWS: Announce the new language environment and its input method.
---
 etc/HELLO                     |   2 +
 etc/NEWS                      |   6 ++
 lisp/international/fontset.el |   2 +
 lisp/language/indian.el       |  38 +++++++++++++
 lisp/leim/quail/indian.el     | 101 ++++++++++++++++++++++++++++++++++
 5 files changed, 149 insertions(+)

diff --git a/etc/HELLO b/etc/HELLO
index dbbcc0493b..ac0cb823ea 100644
--- a/etc/HELLO
+++ b/etc/HELLO
@@ -59,6 +59,8 @@ Hindi (हिंदी)	नमस्ते / नमस्कार ।
 Inuktitut (ᐃᓄᒃᑎᑐᑦ)	ᐊᐃ
 Italian (italiano)	Ciao / Buon giorno
 Javanese (ꦧꦱꦗꦮꦶ)	console.log("ꦲꦭꦺꦴ");
+
+Kaithi (𑂍𑂶𑂟𑂲)	𑂩𑂰𑂧𑂩𑂰𑂧
 Kannada (ಕನ್ನಡ)	ನಮಸ್ಕಾರ
 Khmer (ភាសាខ្មែរ)	ជំរាបសួរ
 Lakota (Lakȟotiyapi)	Taŋyáŋ yahí!
diff --git a/etc/NEWS b/etc/NEWS
index f7dddd36de..86bebe918c 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -722,6 +722,12 @@ This language environment supports Brahmi, which is a historical
 script that was used in ancient South Asia.  A new input method,
 'brahmi', is provided to type text in this script.
 
+*** New language environment "Kaithi".
+This language environment supports Kaithi or Kayasthi, which was
+an important writing system of the past mainly used for administrative
+purposes.  A new input method, 'kaithi', is provided to type text in
+this script.
+
 \f
 * Changes in Specialized Modes and Packages in Emacs 29.1
 
diff --git a/lisp/international/fontset.el b/lisp/international/fontset.el
index 883f08905e..66f5068cf7 100644
--- a/lisp/international/fontset.el
+++ b/lisp/international/fontset.el
@@ -232,6 +232,7 @@
 	(elymaic #x10FE0)
 	(old-uyghur #x10F70)
         (brahmi #x11013 #x11045 #x11052 #x11065)
+        (kaithi #x1108D #x110B0 #x110BD)
 	(mahajani #x11150)
 	(khojki #x11200)
 	(khudawadi #x112B0)
@@ -772,6 +773,7 @@
 		    elymaic
                     old-uyghur
                     brahmi
+                    kaithi
 		    makasar
                     dives-akuru
 		    cuneiform
diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index c3d59b6f77..0031405182 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -136,6 +136,17 @@ South Indian language Malayalam is supported in this language environment."))
 The ancient Brahmi script is supported in this language environment."))
  '("Indian"))                           ; Should we have an "Old" category?
 
+(set-language-info-alist
+ "Kaithi" '((charset unicode)
+            (coding-system utf-8)
+            (coding-priority utf-8)
+            (input-method . "kaithi")
+            (sample-text . "Kaithi (𑂍𑂶𑂟𑂲)        𑂩𑂰𑂧𑂩𑂰𑂧")
+            (documentation . "\
+Languages such as Awadhi, Bhojpuri, Magahi and Maithili
+which used the Kaithi 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).
@@ -421,6 +432,33 @@ The ancient Brahmi script is supported in this language environment."))
                                (concat multiplier number-joiner numeral)
                                1 'font-shape-gstring))))
 
+;; Kaithi composition rules
+(let ((consonant            "[\x1108D-\x110AF]")
+      (nukta                "\x110BA")
+      (vowel                "[\x1108D-\x110C2]")
+      (anusvara-candrabindu "[\x11080\x11081]")
+      (virama               "\x110B9")
+      (number-sign          "\x110BD")
+      (number-sign-above    "\x110CD")
+      (numerals             "[\x966-\x96F]+")
+      (zwj                  "\x200D"))
+  (set-char-table-range composition-function-table
+                        '(#x110B0 . #x110BA)
+                        (list (vector
+                               (concat consonant nukta "?\\(?:" virama zwj "?" consonant nukta "?\\)*\\(?:"
+                                       virama zwj "?\\|" vowel "*" nukta "?" anusvara-candrabindu "?\\)")
+                               1 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110BD . #x110BD)
+                        (list (vector
+                               (concat number-sign numerals)
+                               0 'font-shape-gstring)))
+  (set-char-table-range composition-function-table
+                        '(#x110CD . #x110CD)
+                        (list (vector
+                               (concat number-sign-above numerals)
+                               0 'font-shape-gstring))))
+
 (provide 'indian)
 
 ;;; indian.el ends here
diff --git a/lisp/leim/quail/indian.el b/lisp/leim/quail/indian.el
index f2d5f9bad4..a52d44bc08 100644
--- a/lisp/leim/quail/indian.el
+++ b/lisp/leim/quail/indian.el
@@ -835,5 +835,106 @@ Full key sequences are listed below:")
  ("`/" ?𑁿)
  )
 
+(quail-define-package
+ "kaithi" "Kaithi" "𑂍𑂶" t "Kaithi 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"  ?१)
+("`1" ?1)
+("2"  ?२)
+("`2" ?2)
+("3"  ?३)
+("`3" ?3)
+("4"  ?४)
+("`4" ?4)
+("5"  ?५)
+("`5" ?5)
+("6"  ?६)
+("`6" ?6)
+("7"  ?७)
+("`7" ?7)
+("8"  ?८)
+("`8" ?8)
+("9"  ?९)
+("0"  ?०)
+("`0" ?0)
+("`\)" ?𑂻)
+("`\\" ?𑃀)
+("`|" ?𑃁)
+("`"  ?𑂗)
+("q"  ?𑂗)
+("Q"  ?𑂘)
+("w"  ?𑂙)
+("W"  ?𑂛)
+("`w" ?𑂚)
+("`W" ?𑂜)
+("e"  ?𑂵)
+("E"  ?𑂶)
+("`e" ?𑂉)
+("`E" ?𑂊)
+("r"  ?𑂩)
+("R"  ?𑃂)
+("t"  ?𑂞)
+("T"  ?𑂟)
+("y"  ?𑂨)
+("Y"  ?⸱)
+("u"  ?𑂳)
+("U"  ?𑂴)
+("`u" ?𑂇)
+("`U" ?𑂈)
+("i"  ?𑂱)
+("I"  ?𑂲)
+("`i" ?𑂅)
+("`I" ?𑂆)
+("o"  ?𑂷)
+("O"  ?𑂸)
+("`o" ?𑂋)
+("`O" ?𑂌)
+("p"  ?𑂣)
+("P"  ?𑂤)
+("a"  ?𑂰)
+("A"  ?𑂄)
+("`a" ?𑂃)
+("s"  ?𑂮)
+("S"  ?𑂬)
+("d"  ?𑂠)
+("D"  ?𑂡)
+("`d" ?𑂼)
+("`D" #x110BD) ; Kaithi Number Sign
+("f"  ?𑂹)
+("F" #x110CD) ; Kaithi Number Sign Above
+("`f" ?𑂾)
+("`F" ?𑂿)
+("g"  ?𑂏)
+("G"  ?𑂐)
+("h"  ?𑂯)
+("H"  ?𑂂)
+("j"  ?𑂔)
+("J"  ?𑂕)
+("k"  ?𑂍)
+("K"  ?𑂎)
+("l"  ?𑂪)
+("z"  ?𑂖)
+("Z"  ?𑂑)
+("x"  ?𑂭)
+("X"  ?𑂺)
+("c"  ?𑂒)
+("C"  ?𑂓)
+("`c" #x200C)  ; ZWNJ
+("`C" #x200D)  ; ZWJ
+("v"  ?𑂫)
+("b"  ?𑂥)
+("B"  ?𑂦)
+("n"  ?𑂢)
+("N"  ?𑂝)
+("m"  ?𑂧)
+("M"  ?𑂁)
+("`m" ?𑂀)
+)
+
 
 ;;; indian.el ends here
-- 
2.36.0

Re: [PATCH] Add the Kaithi script to Emacs

[Eli Zaretskii]

> From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> Date: Sat, 7 May 2022 18:00:37 +0530
> Cc: emacs-devel@gnu.org
> 
>  Thanks, but please post the changes as a single patch, not a series of
>  patches where later patch fixes the previous one.
> 
> Done

Thanks, I installed this on the master branch.

Re: [PATCH] Add the Kaithi script to Emacs

[समीर सिंह Sameer Singh]

[-- Attachment #1: Type: text/plain, Size: 442 bytes --]

Great, thanks!

On Sat, May 7, 2022 at 6:54 PM Eli Zaretskii <eliz@gnu.org> wrote:

> > From: समीर सिंह Sameer Singh <lumarzeli30@gmail.com>
> > Date: Sat, 7 May 2022 18:00:37 +0530
> > Cc: emacs-devel@gnu.org
> >
> >  Thanks, but please post the changes as a single patch, not a series of
> >  patches where later patch fixes the previous one.
> >
> > Done
>
> Thanks, I installed this on the master branch.
>

[-- Attachment #2: Type: text/html, Size: 882 bytes --]