[NTG-context] font expansion MkXL vs. MkIV

Pablo Rodriguez oinos at gmx.es
Sun Feb 16 21:22:21 CET 2020

Hi Wolfgang and Hans,

I have the following sample:

        [protrusion=quality, expansion=quality]
    \definefontfamily[mainface][rm][Source Serif Pro]
    \setupalign[hanging, hz]
    \setupbodyfont[mainface, 17pt]
    %~ \setupbodyfont[helvetica, 17pt]
    \input zapf

hz doesn’t work fine in MkXL, but it works fine in MkIV.

I think the flow of characters is broken in MKXL. Some

With TeX Gyre Heros (https://pdf.ousia.tk/mkiv-hz.pdf and

- "computer": line 5.
- "basic": line 8.
- "showing": line 10.

With Source Serif Pro, also (https://pdf.ousia.tk/ssp-mkiv-hz.pdf and

- "publishing": line 2.
- "about": line 4.
- "between": line 10.

I’m experiencing this wherever I use hz with MkXL.

Sorry, but cannot the default values for quality font expansion be the
same in MkIV and MkXL?

Many thanks for your help,


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