[tex-k] Error in TeX The Program: tabskip glue is not marked as such

Igor Liferenko igor.liferenko at gmail.com
Fri Jan 10 08:52:59 CET 2020

Hi all,

Consider the following example:

    \tabskip=0pt plus10pt \halign to200pt{&#\hfil\cr
      \hbox to50pt{}&\hbox to60pt{}\cr}

The log is:

    \hbox(0.0+0.0)x200.0, glue set 3.0
    .\glue(\tabskip) 0.0 plus 10.0
    .\glue(\tabskip) 0.0 plus 10.0
    .\glue 0.0 plus 10.0

The last glue *is* tabskip glue, and thus should be marked as such.
More so that the correct log is on p.302 of TeXbook.


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