Improve Navajo support features

[moyogo]

The Navajo language orthography uses ą ę į ǫ for nasal vowels and ą́ ę́ į́ ǫ́ for high tone nasal vowels, and their uppercase ĄĘĮǪ Ą́Ę́Į́Ǫ́.

The Navajo language system substitution in the locl feature subsitutes /Aogonek/Eogonek/Uogonek/aogonek/eogonek/uogonek for /Aogonek.loclNAV/Eogonek.loclNAV/Uogonek.loclNAV/aogonek.loclNAV/eogonek.loclNAV/uogonek.loclNAV.

• The substitution for /Uogonek.loclNAV/uogonek.loclNAV are not needed in Navajo as the orthography doesn’t use ų ų́ Ų Ų́. Even if the substitution is not needed, it can remain. However for other languages that may use it or the others, it would be useful to have a stylistic set feature with the substitutions.
• The substitutions are inconsistent, /Iogonek/iogonek/Oogonek/oogonek are not substituted to have the /Ogonekcomb.loclNAV/igonekcomb.loclNAV/Ogonekcomb.loclNAV/ogonekcomb.loclNAV. Please add those additional loclNAV variants.
• The substitution for /iogonek when combined with a top accent is missing. The latest versions of Glyphsapp can add the automatic code when /iogonek.dotless is present. Unfortunately it doesn’t add a substitution when /iogonek.dotless.loclNAV is present, so that needs to be added manualy at this point. Please add idotless+ogonekcomb=iogonek.dotless idotless.loclNAV+ogonekcomb.loclNAV=iogonek.dotless.loclNAV (or better with a new /ogonekcomb.i.loclNAV narrow like /ogonekcomb.i), update the ccmp and locl features and add an extra locl feature block, after the automatic locl feature block, with script latn; language NAV; lookup locl_latn_NAV { sub iogonek.dotless by iogonek.dotless.loclNAV; } locl_latn_NAV;.

[kenmcd]

@moyogo
What applications can actually use the loclNAV ?
Could not find any way to demonstrate this in LibreOffice.
Except in those fonts which also include a stylistic set.
It is also possible to demo in applications with a Glyph Browser.
But how does someone actually write Navajo text with the loclNAV localization?
My apologizes as this is a bit off-topic, but I figured you are one of the few people who may actually know this.
Even the Navajo language info and teaching websites have nothing about this.
All my web searches have been fruitless.
Thanks.

[moyogo]

@kenmcd Modern browsers will apply the locl feature when the lang="nav" or `xml:lang="nav" attributes are used in HTML. For example https://nv.wikipedia.org/ or https://www.jw.org/nv/

[kenmcd]

@kenmcd Modern browsers will apply the locl feature when the lang="nav" or `xml:lang="nav" attributes are used in HTML. For example https://nv.wikipedia.org/ or https://www.jw.org/nv/

Thanks for the info and links.
Have been trying to document fonts which support Navajo (on desktop).
Merriweather and Source Sans 3 also have stylistic sets.
Noto Sans and Noto Serif do not have stylistic sets.
So no desktop support in those fonts that I can figure-out.
Hmmm...maybe I'll fork them and add it.

Did not think about the browser support. Thanks!