[bug #60602] Unit discrepancy in \r, \u, and \d between Texinfo manual and groff(7)

[G. Branden Robinson]

Follow-up Comment #13, bug #60602 (project groff):

[comment #10 comment #10:]
> CSTR 54 is correct.  Branden's 'guess' is wrong and no change from Bell Labs
troff's normal and documented behaviour should be made based on it.  vflag is
used to indicate the motion is vertical.  It is nothing to do with forcing a
unit calculation to be vees.  The code of makem(), quoted but not analysed
above, makes this clear.


   443  makem(i)
   444  int i;
   445  {
   446          register j;
   447
   448          if((j = i) < 0)j = -j;
   449          j = (j & ~MOTV) | MOT;
   450          if(i < 0)j |= NMOT;
   451          if(vflag)j |= VMOT;
   452          return(j);
   453  }


https://www.youtube.com/watch?v=KmKOVdAGtzM

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