Key sequence for DEVANAGARI DOUBLE DANDA

Key sequence for DEVANAGARI DOUBLE DANDA

[Pankaj Jangid]

In the Devanagari script, two symbols are frequently used in prose:

। - DEVANAGARI DANDA
॥ - DEVANAGARI DOUBLE DANDA

With the devanagari-inscript input method, the '>' key produces the
DEVANAGARI DANDA. For convenience, could we introduce a key sequence
where pressing '>' twice consecutively produces the DEVANAGARI DOUBLE
DANDA?

To my knowledge, there's no legitimate use of two consecutive DEVANAGARI
DANDAs in the script, so this change should not introduce conflicts.

I'm copying Sameer for his insights and assistance, given his experience
with Indian scripts.

Re: Key sequence for DEVANAGARI DOUBLE DANDA

[Robert Pluim]

>>>>> On Sat, 19 Aug 2023 18:06:53 +0530, Pankaj Jangid <pankaj@codeisgreat.org> said:

    Pankaj> In the Devanagari script, two symbols are frequently used in prose:
    Pankaj> । - DEVANAGARI DANDA
    Pankaj> ॥ - DEVANAGARI DOUBLE DANDA

    Pankaj> With the devanagari-inscript input method, the '>' key produces the
    Pankaj> DEVANAGARI DANDA. For convenience, could we introduce a key sequence
    Pankaj> where pressing '>' twice consecutively produces the DEVANAGARI DOUBLE
    Pankaj> DANDA?

    Pankaj> To my knowledge, there's no legitimate use of two consecutive DEVANAGARI
    Pankaj> DANDAs in the script, so this change should not introduce conflicts.

    Pankaj> I'm copying Sameer for his insights and assistance, given his experience
    Pankaj> with Indian scripts.

Something like this? Is this the only input method that needs a change?

Robert
-- 

diff --git i/lisp/language/ind-util.el w/lisp/language/ind-util.el
index 71117deef56..34064a30ad8 100644
--- i/lisp/language/ind-util.el
+++ w/lisp/language/ind-util.el
@@ -67,7 +67,7 @@ indian-dev-base-table
      ?क़ ?ख़ ?ग़ ?ज़ ?ड़ ?ढ़ ?फ़ ?य़      ;; NUKTAS
      "ज्ञ" "क्ष")
     (;; Misc Symbols (7)
-     ?ँ ?ं ?ः ?ऽ ?् ?ॐ ?।)
+     ?ँ ?ं ?ः ?ऽ ?् ?ॐ ?। ?॥)
     (;; Digits (10)
      ?० ?१ ?२ ?३ ?४ ?५ ?६ ?७ ?८ ?९)
     (;; Inscript-extra (4)  (#, $, ^, *, ])
diff --git i/lisp/leim/quail/indian.el w/lisp/leim/quail/indian.el
index 70ea9290662..02a2c9a68d2 100644
--- i/lisp/leim/quail/indian.el
+++ w/lisp/leim/quail/indian.el
@@ -570,7 +570,7 @@ inscript-dev-keytable
      "k]" "K]" "i]" "p]" "[]" "{]" "H]" "/]" ;; NUKTAS
      ?% ?&)
     (;; Misc Symbols (7)
-     ?X ?x ?_ ">]" ?d "X]" ?>)
+     ?X ?x ?_ ">]" ?d "X]" ?> ">>")
     (;; Digits
      ?0 ?1 ?2 ?3 ?4 ?5 ?6 ?7 ?8 ?9)
     (;; Inscripts

Re: Key sequence for DEVANAGARI DOUBLE DANDA

[Visuwesh]

[வியாழன் செப்டம்பர் 07, 2023] Robert Pluim wrote:

> Something like this?

Did you try compiling the relevant files and tested devanagari-itrans
with the patch?  Because, with your change indian-dev-base-table has 8
misc entries but the corresponding indian-itrans-v5-table only has 7
misc entries (and "base" tables for other languages has 7 entries too).
AFAICT from reading indian--puthash-m, this should not pose a problem
but adding an extra nil to all itrans and inscript "base" tables to the
misc section wouldn't hurt either.

> Is this the only input method that needs a change?

I think so, yes.  The devanagari-itrans method already has a convenient
way to insert the concerned character.

Re: Key sequence for DEVANAGARI DOUBLE DANDA

[Robert Pluim]

>>>>> On Thu, 07 Sep 2023 21:35:44 +0530, Visuwesh <visuweshm@gmail.com> said:

    Visuwesh> [வியாழன் செப்டம்பர் 07, 2023] Robert Pluim wrote:
    >> Something like this?

    Visuwesh> Did you try compiling the relevant files and tested devanagari-itrans
    Visuwesh> with the patch?  Because, with your change indian-dev-base-table has 8
    Visuwesh> misc entries but the corresponding indian-itrans-v5-table only has 7
    Visuwesh> misc entries (and "base" tables for other languages has 7 entries too).
    Visuwesh> AFAICT from reading indian--puthash-m, this should not pose a problem
    Visuwesh> but adding an extra nil to all itrans and inscript "base" tables to the
    Visuwesh> misc section wouldn't hurt either.

It worked fine when I tested it. From my reading of
`quail-define-inscript-package' and the fact that eg
`inscript-mlm-keytable' only has 5 entries in the 'Misc' section, I
didnʼt think it would cause any issues.

Also now that `indian-dev-base-table' has 8 entries in the 'Misc' section,
inluding one for ?॥, Iʼm wondering about this code at
indian.el:61:

(quail-define-indian-trans-package
 indian-dev-itrans-v5-hash "devanagari-itrans" "Devanagari" "DevIT"
 "Devanagari transliteration by ITRANS method.")
(quail-defrule "..." ?॥) <== couldnʼt this be in `indian-itrans-v5-table' now?
(quail-defrule "\\'" ?॑)
(quail-defrule "\\_" ?॒)
(quail-defrule "\\__" ?_)
(quail-defrule "\\''" ?')

But I havenʼt tested any changes along those lines :-)

Robert
-- 

Re: Key sequence for DEVANAGARI DOUBLE DANDA

[Visuwesh]

[வியாழன் செப்டம்பர் 07, 2023] Robert Pluim wrote:

>>>>>> On Thu, 07 Sep 2023 21:35:44 +0530, Visuwesh <visuweshm@gmail.com> said:
>
>     Visuwesh> [வியாழன் செப்டம்பர் 07, 2023] Robert Pluim wrote:
>     >> Something like this?
>
>     Visuwesh> Did you try compiling the relevant files and tested devanagari-itrans
>     Visuwesh> with the patch?  Because, with your change indian-dev-base-table has 8
>     Visuwesh> misc entries but the corresponding indian-itrans-v5-table only has 7
>     Visuwesh> misc entries (and "base" tables for other languages has 7 entries too).
>     Visuwesh> AFAICT from reading indian--puthash-m, this should not pose a problem
>     Visuwesh> but adding an extra nil to all itrans and inscript "base" tables to the
>     Visuwesh> misc section wouldn't hurt either.
>
> It worked fine when I tested it. From my reading of
> `quail-define-inscript-package' and the fact that eg
> `inscript-mlm-keytable' only has 5 entries in the 'Misc' section, I
> didnʼt think it would cause any issues.
>
> Also now that `indian-dev-base-table' has 8 entries in the 'Misc' section,
> inluding one for ?॥, Iʼm wondering about this code at
> indian.el:61:
>
> (quail-define-indian-trans-package
>  indian-dev-itrans-v5-hash "devanagari-itrans" "Devanagari" "DevIT"
>  "Devanagari transliteration by ITRANS method.")
> (quail-defrule "..." ?॥) <== couldnʼt this be in `indian-itrans-v5-table' now?
> (quail-defrule "\\'" ?॑)
> (quail-defrule "\\_" ?॒)
> (quail-defrule "\\__" ?_)
> (quail-defrule "\\''" ?')

Which makes me think, can't we just do the same for the inscript method
i.e., use quail-defrule for the DOUBLE DANDA?

> But I havenʼt tested any changes along those lines :-)
>
> Robert