[dev-context] Italic correction missing when using \left...\right

Henri Menke henri at henrimenke.de
Mon Apr 25 22:09:12 CEST 2022


Dear devs,

When using delimiter with \left...\right the italic correction between
the preceding letter and the delimiter is dropped. I've tried this with
a few fonts and all show the problem. For Libertinus Math the glyphs
even overlap.

MWE for mtxrun --script plain (TeX Live 2022)

   %\input luaotfload.sty
   \font\mathfont="file:LibertinusMath-Regular.otf:mode=base;script=math" at 10pt
   \textfont0=\mathfont
   \textfont2=\mathfont
   
   \Umathcodenum`f="1D453
   \protected\def\langle{\Udelimiter"4"0"27E8\relax}
   \protected\def\rangle{\Udelimiter"5"0"27E9\relax}
   
   $f\rangle$
   
   \nulldelimiterspace=0pt
   $\left.f\right\rangle$
   
   \bye

Cheers, Henri


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