On 25/03/2021 11:24, Yannis Haralambous wrote:
Well if the text width is 0pt it will only break once, no?

Normally, I'd expect a break at every opportunity if the width is 0pt.

In plain (xe)tex,

  \hsize 0pt
  \noindent \hskip 0pt supercalifragilisticexpialidocious \par

gives me essentially one syllable per line.

But in the Arabic-script Amiri example this doesn't work for me. I suspect this is a bug in xetex.


I begin to believe that in plain TeX ^^^^200d is treated just like any other character, so the problem lies not in XeTeX, but in polyglossia+fontspec somewhere there is some
special treatment of ^^^^200d so that my LaTeX code doesn't work.

I have opened an issue on the polyglossia github…

Le 25 mars 2021 à 12:18, Bruno Le Floch <blfla...@gmail.com <mailto:blfla...@gmail.com>> a écrit :

Pushing some more in this direction, my code below (with Amiri-Regular.ttf being in the same directory) hyphenates the second and third "blabla" (consistent with Yannis' reminder that the first word is not hyphenated) but only hyphenates in a
single place (the first one) in the sequence of ^^^^xyzt afterwards.

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