RE: Bordering clearly between Mordern Mongolian and Ancient Mongolian solution.

Hi Richard,

Yes. currently, in our DS01 or WG2, we have following characters need more
than 4 variants.
1. https://r12a.github.io/mongolian-variants/#char182C medial form, if we
do not exclude  (this is not modern) or move   and  (it is actually final)
to final form, there is shortage.
2. https://r12a.github.io/mongolian-variants/#char182D medial form, if we
do not exclude  (this is not modern) or move  (it is actually final) to
final form, there is shortage.

For several characters we need OVERWRITE TO DEFAULT FORM logic for modern
Mongolian, we need to use extra one FVS for these characters. 
Currently we are using FVS3 sometimes, but using FVS1 alternatively in
DS01. Actually, it is not the proper method for using FVS1 in the encoding
principle, because FVS1 already have one encoding glyph. 
These characters are 
1. https://r12a.github.io/mongolian-variants/#char1822 We are using
FVS3 for medial U1822_I OVERRIDE (DS01). 
2. https://r12a.github.io/mongolian-variants/#char1825 We have OVERRIDE
requirement for medial form. But DS01 have not listed yet. We are using FVS3
by default in our font MWc.
3. https://r12a.github.io/mongolian-variants/#char1826 We have OVERRIDE
requirement for medial form. But DS01 have not listed yet. We are using FVS3
by default in our font MWc.
4. https://r12a.github.io/mongolian-variants/#char1828 We have OVERRIDE
requirement for medial form. But DS01 have not listed yet. We are using FVS3
or FVS2 by default in our font MWc.
5. https://r12a.github.io/mongolian-variants/#char182C We have OVERRIDE
requirement for medial form. But DS01 have no extra FVS to list it. If we
remain  ,  ,   as the Modern Mongolian and classify   as ancient Mongolian,
we have FVS3 left for OVERWRITE, otherwise, we will have FVS shortage on
this character. Of cause, we cannot encode  and  as medial form.
6. https://r12a.github.io/mongolian-variants/#char182D We have OVERRIDE
requirement for medial form. But DS01 have no extra FVS to list it. If we
remain  ,  ,   as the Modern Mongolian and classify   as ancient Mongolian,
we have FVS3 or FVS2 left for OVERWRITE, otherwise, we will have FVS
shortage on this character. Of cause, we cannot encode  as medial form.
7. https://r12a.github.io/mongolian-variants/#char1831 We have OVERRIDE
requirement for medial form. But DS01 have not listed yet. We are using FVS3
or FVS2 by default in our font MWc.
8. https://r12a.github.io/mongolian-variants/#char1833 We may have
OVERRIDE requirement for medial form. But DS01 have not listed yet. We are
using FVS3 or FVS2 by default in our font MWc.
9. https://r12a.github.io/mongolian-variants/#char1836 We do not allow
OVERRIDE or TOGGLE for this character medial form. DS01 comments
contents-driven and OVERRIDE default form in PDF. 
10. https://r12a.github.io/mongolian-variants/#char1838 We do not allow
OVERRIDE or TOGGLE for this character medial form. DS01 comments
contents-driven in PDF.

OVERWRITE TO DEFAULT FORM is mean that if 
When we using content-driven logic to selected the character’s second or
third or fourth form, but for irregular writing case, we need to change the
writing form to default variant form.

Thanks and Best Regards,

Jirimutu
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-----Original Message-----
From: r12a [mailto:ishida@w3.org] 
Sent: Thursday, January 26, 2017 6:16 PM
To: jrmt@almas.co.jp; 'Greg Eck' <greck@postone.net>;
public-i18n-mongolian@w3.org
Cc: foximoyi@icloud.com; csmhjy@126.com; 'siqin' <siqin@almas.co.jp>
Subject: Re: Bordering clearly between Mordern Mongolian and Ancient
Mongolian solution.

On 25/01/2017 10:19, jrmt@almas.co.jp <mailto:jrmt@almas.co.jp>  wrote:
> *_Here I would like to introduce one Bordering Principle for Modern 
> Mongolian and Ancient Mongolian._*
>
> *1.    **_For the Modern Mongolian Variant Form, we use FVS1, FVS2, FVS3.
_*
>
> *2.    **_For the Ancient Mongolian Variant Form, we use VS1, VS2, VS3,
> VS4,…….._*
>


I suppose one thing to check is whether there are any characters that
require more than 3 variant forms for the modern usage.

(Should be easy to check quickly using the comparison chart.) For example
how about https://r12a.github.io/mongolian-variants/#char1887 ?

ri