[XeTeX] Support of variable OpenType fonts

2022-07-12 Thread Bruno Voisin via XeTeX 
Does XeTeX support variable OpenType fonts, or is the addition of their support 
planned at some point?

There does not seem to be any clear statement on the net about this, but based 
on

https://tex.stackexchange.com/questions/355104/tex-luatex-xetex-fontspec-support-for-opentype-variable-fonts
https://sourceforge.net/p/xetex/feature-requests/28/

I have the impression there's no such support yet.

I'm asking because the next version of macOS, currently in public beta, 
includes the STIX Two fonts in a slightly more recent version than TeX Live 
(2.13 b171 for macOS vs 2.12 b168 for TL).

The math font is in OTF format, same as in TL, but the text fonts are in 
variable OpenType format, actually the files

STIXTwoText[wght].ttf
STIXTwoText-Italic[wght].ttf

from the official STIX Two distribution renamed as

STIXTwoText.ttf
STIXTwoText-Italic.ttf

respectively.

Loading the fonts with LuaTeX and luaotfload, use of

\font\testfont="STIX Two Text"
\font\testfont="STIX Two Text Medium"

works and gets the fonts from TeX Live, while

\font\testfont="[STIXTwoText.ttf]"
\font\testfont="[STIXTwoText.ttf]:instance=medium"

gets the font from macOS. Similarly

\fonttest{STIX Two Text Italic}
\fonttest{STIX Two Text Medium Italic}

for TL becomes

\fonttest{[STIXTwoText-Italic.ttf]}
\fonttest{[STIXTwoText-Italic.ttf]:axis={weight=medium}}

for macOS (for some reason instance= doesn't work in this latter case). See the 
attached test file.

So I was wondering whether the same could be achieved with XeTeX.

The question is futile regarding STIX Two (the fonts in TeX Live are perfectly 
fine). But this was my first encounter with variable OpenType fonts ever in the 
real world, and I imagine the use of such fonts will become more widespread as 
time goes.

Bruno Voisin

PS Please cc possible answers to me, as I'm no longer subscribed to the list.



test-stixvariable.pdf
Description: Adobe PDF document


test-stixvariable.tex
Description: Binary data

Re: [XeTeX] Support of variable OpenType fonts

2022-07-12 Thread Karl Berry 
Hi Bruno and all,

Does XeTeX support variable OpenType fonts, or is the addition of their
support planned at some point?

Jonathan or Arthur or anyone can correct me, but so far as I have
observed, no one has been working on such new xetex developments for
years now.

If there is anyone out there with sufficient time, interest, and skill,
a volunteer would surely be welcome. If a small grant would be any
enticement for this particular (or other) task(s), the TeX development
fund (tug.org/tc/devfund) is available.

includes the STIX Two fonts in a slightly more recent version than TeX
Live (2.13 b171 for macOS vs 2.12 b168 for TL).

TL follows whatever is uploaded to CTAN. Maybe you could write the stix2
maintainers about keeping CTAN up to date?

the text fonts are in variable OpenType format,

Seems like a poor decision wrt backward compatibility, but I'm sure
whoever changed it had good reasons.

(Especially since, I heard vaguely, it is XeTeX which AMS uses
occasionally, never LuaTeX, and AMS is one of the primary Stix2
sponsors. Anyway.)

\fonttest{[STIXTwoText-Italic.ttf]:axis={weight=medium}}

for macOS (for some reason instance= doesn't work in this latter case).

Maybe something to report to luaotfload, except they surely won't be
able to do anything without the actual font.

Thanks for the report. --karl.

Re: [XeTeX] Support of variable OpenType fonts

2022-07-12 Thread David Jones 
STIX Two is distributed in OTF, TTF, and WOFF2 formats:

 https://github.com/stipub/stixfonts

Only the TTF files are variable fonts.

Only the OTF fonts are distributed via CTAN since none of the TeX engines can 
use the (variable) TTF fonts. 

The changes in version 2.13 only affected the variable fonts, not the "static" 
OTF files (although the version numbers were bumped up to match the ttf files). 
 That's why we didn't push a new version of stix2-otf package to CTAN.

Cheers,
David.

From: XeTeX  on behalf of Bruno Voisin via 
XeTeX 
Sent: Tuesday, July 12, 2022 10:17 AM
To: xetex@tug.org
Subject: [XeTeX] Support of variable OpenType fonts

Does XeTeX support variable OpenType fonts, or is the addition of their support 
planned at some point?

There does not seem to be any clear statement on the net about this, but based 
on

https://tex.stackexchange.com/questions/355104/tex-luatex-xetex-fontspec-support-for-opentype-variable-fonts
https://sourceforge.net/p/xetex/feature-requests/28

I have the impression there's no such support yet.

I'm asking because the next version of macOS, currently in public beta, 
includes the STIX Two fonts in a slightly more recent version than TeX Live 
(2.13 b171 for macOS vs 2.12 b168 for TL).

The math font is in OTF format, same as in TL, but the text fonts are in 
variable OpenType format, actually the files

STIXTwoText[wght].ttf
STIXTwoText-Italic[wght].ttf

from the official STIX Two distribution renamed as

STIXTwoText.ttf
STIXTwoText-Italic.ttf

respectively.

Loading the fonts with LuaTeX and luaotfload, use of

\font\testfont="STIX Two Text"
\font\testfont="STIX Two Text Medium"

works and gets the fonts from TeX Live, while

\font\testfont="[STIXTwoText.ttf]"
\font\testfont="[STIXTwoText.ttf]:instance=medium"

gets the font from macOS. Similarly

\fonttest{STIX Two Text Italic}
\fonttest{STIX Two Text Medium Italic}

for TL becomes

\fonttest{[STIXTwoText-Italic.ttf]}
\fonttest{[STIXTwoText-Italic.ttf]:axis={weight=medium}}

for macOS (for some reason instance= doesn't work in this latter case). See the 
attached test file.

So I was wondering whether the same could be achieved with XeTeX.

The question is futile regarding STIX Two (the fonts in TeX Live are perfectly 
fine). But this was my first encounter with variable OpenType fonts ever in the 
real world, and I imagine the use of such fonts will become more widespread as 
time goes.

Bruno Voisin

PS Please cc possible answers to me, as I'm no longer subscribed to the list.

Re: [XeTeX] Support of variable OpenType fonts

2022-07-12 Thread David Carlisle 
On Tue, 12 Jul 2022 at 22:03, David Jones  wrote:

> STIX Two is distributed in OTF, TTF, and WOFF2 formats:
>
>  https://github.com/stipub/stixfonts
>
> Only the TTF files are variable fonts.
>
> Only the OTF fonts are distributed via CTAN since none of the TeX engines
> can use the (variable) TTF fonts.
>

luatex (luaotfload) can use variable fonts (as shown in the original
message in this thread) see also https://tex.stackexchange.com/a/630608/1090


> The changes in version 2.13 only affected the variable fonts, not the
> "static" OTF files (although the version numbers were bumped up to match
> the ttf files).  That's why we didn't push a new version of stix2-otf
> package to CTAN.
>
> Cheers,
> David.
> 
> From: XeTeX  on behalf of Bruno Voisin
> via XeTeX 
> Sent: Tuesday, July 12, 2022 10:17 AM
> To: xetex@tug.org
> Subject: [XeTeX] Support of variable OpenType fonts
>
> Does XeTeX support variable OpenType fonts, or is the addition of their
> support planned at some point?
>
> There does not seem to be any clear statement on the net about this, but
> based on
>
>
> https://tex.stackexchange.com/questions/355104/tex-luatex-xetex-fontspec-support-for-opentype-variable-fonts
> https://sourceforge.net/p/xetex/feature-requests/28
>
> I have the impression there's no such support yet.
>
> I'm asking because the next version of macOS, currently in public beta,
> includes the STIX Two fonts in a slightly more recent version than TeX Live
> (2.13 b171 for macOS vs 2.12 b168 for TL).
>
> The math font is in OTF format, same as in TL, but the text fonts are in
> variable OpenType format, actually the files
>
> STIXTwoText[wght].ttf
> STIXTwoText-Italic[wght].ttf
>
> from the official STIX Two distribution renamed as
>
> STIXTwoText.ttf
> STIXTwoText-Italic.ttf
>
> respectively.
>
> Loading the fonts with LuaTeX and luaotfload, use of
>
> \font\testfont="STIX Two Text"
> \font\testfont="STIX Two Text Medium"
>
> works and gets the fonts from TeX Live, while
>
> \font\testfont="[STIXTwoText.ttf]"
> \font\testfont="[STIXTwoText.ttf]:instance=medium"
>
> gets the font from macOS. Similarly
>
> \fonttest{STIX Two Text Italic}
> \fonttest{STIX Two Text Medium Italic}
>
> for TL becomes
>
> \fonttest{[STIXTwoText-Italic.ttf]}
> \fonttest{[STIXTwoText-Italic.ttf]:axis={weight=medium}}
>
> for macOS (for some reason instance= doesn't work in this latter case).
> See the attached test file.
>
> So I was wondering whether the same could be achieved with XeTeX.
>
> The question is futile regarding STIX Two (the fonts in TeX Live are
> perfectly fine). But this was my first encounter with variable OpenType
> fonts ever in the real world, and I imagine the use of such fonts will
> become more widespread as time goes.
>
> Bruno Voisin
>
> PS Please cc possible answers to me, as I'm no longer subscribed to the
> list.
>
>
>
>
>

Re: [XeTeX] Support of variable OpenType fonts

2022-07-12 Thread David Jones 
I stand corrected.  I'll keep that in mind the next time we update the fonts.


David.


From: XeTeX  on behalf of David Carlisle 

Sent: Tuesday, July 12, 2022 5:08 PM
To: XeTeX (Unicode-based TeX) discussion.
Cc: Bruno Voisin
Subject: Re: [XeTeX] Support of variable OpenType fonts



On Tue, 12 Jul 2022 at 22:03, David Jones mailto:d...@ams.org>> 
wrote:
STIX Two is distributed in OTF, TTF, and WOFF2 formats:

 https://github.com/stipub/stixfonts

Only the TTF files are variable fonts.

Only the OTF fonts are distributed via CTAN since none of the TeX engines can 
use the (variable) TTF fonts.

luatex (luaotfload) can use variable fonts (as shown in the original message in 
this thread) see also 
https://tex.stackexchange.com/a/630608/1090


The changes in version 2.13 only affected the variable fonts, not the "static" 
OTF files (although the version numbers were bumped up to match the ttf files). 
 That's why we didn't push a new version of stix2-otf package to CTAN.

Cheers,
David.

From: XeTeX mailto:ams@tug.org>> on 
behalf of Bruno Voisin via XeTeX mailto:xetex@tug.org>>
Sent: Tuesday, July 12, 2022 10:17 AM
To: xetex@tug.org
Subject: [XeTeX] Support of variable OpenType fonts

Does XeTeX support variable OpenType fonts, or is the addition of their support 
planned at some point?

There does not seem to be any clear statement on the net about this, but based 
on

https://tex.stackexchange.com/questions/355104/tex-luatex-xetex-fontspec-support-for-opentype-variable-fonts
https://sourceforge.net/p/xetex/feature-requests/28

I have the impression there's no such support yet.

I'm asking because the next version of macOS, currently in public beta, 
includes the STIX Two fonts in a slightly more recent version than TeX Live 
(2.13 b171 for macOS vs 2.12 b168 for TL).

The math font is in OTF format, same as in TL, but the text fonts are in 
variable OpenType format, actually the files

STIXTwoText[wght].ttf
STIXTwoText-Italic[wght].ttf

from the official STIX Two distribution renamed as

STIXTwoText.ttf
STIXTwoText-Italic.ttf

respectively.

Loading the fonts with LuaTeX and luaotfload, use of

\font\testfont="STIX Two Text"
\font\testfont="STIX Two Text Medium"

works and gets the fonts from TeX Live, while

\font\testfont="[STIXTwoText.ttf]"
\font\testfont="[STIXTwoText.ttf]:instance=medium"

gets the font from macOS. Similarly

\fonttest{STIX Two Text Italic}
\fonttest{STIX Two Text Medium Italic}

for TL becomes

\fonttest{[STIXTwoText-Italic.ttf]}
\fonttest{[STIXTwoText-Italic.ttf]:axis={weight=medium}}

for macOS (for some reason instance= doesn't work in this latter case). See the 
attached test file.

So I was wondering whether the same could be achieved with XeTeX.

The question is futile regarding STIX Two (the fonts in TeX Live are perfectly 
fine). But this was my first encounter with variable OpenType fonts ever in the 
real world, and I imagine the use of such fonts will become more widespread as 
time goes.

Bruno Voisin

PS Please cc possible answers to me, as I'm no longer subscribed to the list.