Proposal to add Roman transliteration schemes to ISO 15924.

[Richard Wordingham via Unicode]

On Mon, 2 Dec 2019 09:09:02 -0800
Markus Scherer via Unicode <unicode at unicode.org> wrote:

> On Mon, Dec 2, 2019 at 8:42 AM Roozbeh Pournader via Unicode <
> unicode at unicode.org> wrote:  
> 
> > You don't need an ISO 15924 script code. You need to think in terms
> > of BCP 47. Sanskrit in Latin would be sa-Latn.
> >  
> 
> Right!
> 
> Now, if you want to distinguish the different transcription systems
> for
> > writing Sanskrit in Latin, you can apply to registry a BCP 47
> > variant. There are also BCP 47 extension T, which may also be
> > useful to you:
> >
> > https://tools.ietf.org/html/rfc6497
> >  
> 
> And that extension is administered by Unicode, with documentation and
> data here:
> http://www.unicode.org/reports/tr35/tr35.html#t_Extension

But that says that the definitions are at
https://github.com/unicode-org/cldr/releases/tag/latest/common/bcp47/transform.xml ,
but all one currently gets from that is an error message 'XML Parsing
Error: no element found'.