[XeTeX] [EXT] solved partially

[Stefan Solbrig]

Hi,
In XeTeX, you can also use \XeTeXcharglyph to get the (font dependant) glyph number for the character code.

\newcount\buffer
{%
\font\1="[./NotoSansManichaean-Regular.ttf] :script=mani"\1
\global\buffer\XeTeXcharglyph"FE00\relax
\XeTeXglyph\buffer\relax % prints the glyph
}

\number\buffer % prints the glpyh number

{% short
\font\1="[./NotoSansManichaean-Regular.ttf] :script=mani"\1
\XeTeXglyph\XeTeXcharglyph"FE00\relax
}

> Am 17.10.2022 um 07:39 schrieb Janusz S. Bień <jsbien at mimuw.edu.pl>:
> 
> On Sun, Oct 16 2022 at 21:25 +02, Ulrike Fischer wrote:
> 
> Thank you very much for your comments!
> 
>> Am Sun, 16 Oct 2022 18:47:30 +0200 schrieb Janusz S. Bień:
>> 
>>> On Sun, Oct 16 2022 at 17:56 +02, Janusz S. Bień wrote:
>>> 
>>> Frank Mittelbach was kind enough to provide me with the relevant information:
>>> 
>>> On Sun, Oct 16 2022 at  9:21 -07, Frank Mittelbach wrote:
>>>> I checked. In Unicode this slot is default-ignorable and both XeTeX
>>>> and LuaTeX do not print glyphs with that attribute (probably because
>>>> the aren't not meant for printing).
>>>> 
>>>> In luaTeX (but not in XeTeX I think) you can change this behavior.
>>> 
>>> So the questions left are:
>>> 
>>> Is it really impossible to do it in XeTeX?
>> 
>> With lualatex you can force the glyph with Renderer=base:
>> 
>> \documentclass{article}
>> \usepackage{fontspec}
>> \setmainfont{Noto Sans Manichaean}[Renderer=Base]
> 
> Or
> 
> \setmainfont[RawFeature={-invisible}]{Noto Sans Manichaean}
> 
> (pointed to me by Frank Mittelbach)
> 
> which refers directly to the Unicode character property discussed in
> L2/02-368 (http://www.unicode.org/L2/L2002/02368-default-ignorable.pdf)
> and https://github.com/latex3/luaotfload/issues/63.
> 
>> \begin{document}
>> \thispagestyle{empty}
>> 
>> \char"FE00
>> 
>> \end{document}
>> 
>> With xelatex you can use the glyph slot:
>> 
>> \documentclass{article}
>> \usepackage{fontspec}
>> \setmainfont{Noto Sans Manichaean}\begin{document}
>> \thispagestyle{empty}
>> 
>> \XeTeXglyph58
> 
> That's the command I need! Either I haven't noticed it at all or forgot
> about it :-(
> 
>> 
>> \end{document}
>> 
>> The number 58 is font dependant (I found this one by looking in the
>> font cache file created by  lualatex) 
> 
> Looks like it can be found in the ttx output in *.GlyphOrder.ttx,
> e.g. <GlyphID id="58" name="uniFE00"/>.
> 
> Thanks once again!
> 
> Best regards
> 
> Janusz
> 
> -- 
>             ,   
> Janusz S. Bien
> emeryt (emeritus)
> https://sites.google.com/view/jsbien
>