[XeTeX] Follow-up to previous mail about hyphenation

[Bruno Le Floch]

Hello Yannis,

On 3/25/21 10:41 AM, Yannis Haralambous wrote:
> This is XeTeX, Version 3.141592653-2.6-0.999993 (TeX Live 2021) (preloaded
> format=plain)
>  restricted \write18 enabled.
> (./test.tex
> Underfull \hbox (badness 10000) in paragraph at lines 6--6
> *[] \tenrm blabla*
> [1] )
> (see the transcript file for additional information)
> Output written on test.xdv (1 page, 236 bytes).
> Transcript written on test.log.
> 
> which means that the pattern has not been applied.

When running essentially your code, I get a missing character message.  So the
issue here is simply that the box ends up reading "blabla", so the patterns
involving ^^^^200D are not relevant.  Naively I would expect the pattern to work
correctly if your font has this character.

Missing character: There is no ‍<U+200D> in font cmr10!

Best regards,
Bruno