dear Lorna,
I downloaded the font and opened it with FontLab. Even though it has a feature
feature smcp {
# GSUB feature: Small Capitals
# Lookups: 1
script latn; # Latin
sub @smcp by @smcp2;
} smcp;
and a class called smcp:
b c d e f g h i j k l m n o p q r s t u v w x y z a_acute a_grave a_circumflex
a_dieresis a_tilde a_ring c_cedilla e_acute e_grave e_circumflex e_dieresis
i_acute i_grave i_circumflex i_dieresis n_tilde o_acute o_grave o_circumflex
o_dieresis o_tilde u_acute u_grave u_circumflex u_dieresis a_e o_slash o_e
y_dieresis a_macron a_breve a_ogonek c_acute c_caron d_quote.right d_bar.croat
d_bar.eth e_macron e_dot.accent e_ogonek e_caron g_breve g_acute i_macron
i_ogonek k_cedilla l_acute l_cedilla l_quote.right l_dot.right l_slash n_acute
n_cedilla n_caron o_macron o_umlaut.hungarian r_acute r_cedilla r_caron s_acute
s_cedilla s_comma.below s_caron t_cedilla t_comma.below t_quote.right u_ring
u_macron u_ogonek u__umlaut.hungarian y_acute z_acute z_dot.accent z_caron
thorn g_comma.below k_comma.below l_comma.below n_comma.below r_comma.below
it does not contain glyphs with the .smcp extension but only glyphs with the
.small extension as you can see here:

Maybe XeTeX needs to find the .smcp extension to use a glyph in the frame of
the smcp feature.
> Le 24 oct. 2023 à 22:44, Lorna Evans <lorna_ev...@sil.org> a écrit :
>
> I downloaded Hoefler Text from here:
> https://fontsgeek.com/fonts/Hoefler-Text-Regular#google_vignette
>
> My minimal example:
>
>
>> %!TEX TS-program = xelatex
>>
>> \documentclass[12pt]{memoir}
>> \usepackage{fontspec}
>>
>> \setmainfont[Renderer=OpenType]{Hoefler Text}
>>
>> \begin{document}
>> Now is the time for all good men to come to the aid of their country. The
>> quick brown fox jumped over the lazy black dog.
>>
>> \fontspec{Hoefler Text}[
>> Renderer=OpenType,
>> RawFeature={+smcp}]
>> Now is the time for all good men to come to the aid of their country. The
>> quick brown fox jumped over the lazy black dog.
>>
>>
>> \end{document}
>>
>>
> This produced
>
> <0zD8ysJKQPSxTnZv.png>
>
> I don't know if the screenshot will come through on this list. But it seems
> to work. I'm on Windows though.
>
> Lorna
>
>
>
> On 10/23/2023 8:40 PM, David Barts via XeTeX wrote:
>> Posted this on the /r/tex subreddit and it was recommended I post it here:
>>
>> When I run XeLaTeX from TeX Live 2023 on my Mac, it does not allow me to
>> access the small caps (smcp feature) in the Baskerville or Hoefler Text
>> fonts. I know these fonts contain small caps, because I can access the smcp
>> feature in them when using Libre Office. I know Libre Office isn’t simply
>> faking it and using a smaller point size to get small caps because a) that’s
>> not how the text appears (the small caps sure look like proper small caps to
>> me), b) it doesn’t do this for all fonts.
>>
>> It’s not all Open Type fonts that XeTeX has problems with, either. It can
>> use the small caps in Shinntype’s Scotch Modern just fine.
>>
>> I’ve done some web searches about this and so far came up dry. Was wondering
>> if anyone else had noticed it or has a workaround.
>>
>> --
>> David Barts / n5...@me.com <mailto:n5...@me.com>
>> He who has nothing to die for has nothing to live for.
>> -- Moroccan proverb
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