Re: groff_mm : problems with .DS

[Anton Shepelev]

Damian McGuckin to Anton Shepelev:

> As  you  noticed,  that 1.22.4 version of '-mm' solved the
> fill-mode problem with '.DS'.
>
> However, when you use
>
>    .DS 1
>    .EQ (X)
>    ... equation
>    .EN
>    .DE
>
> it places put the equation number (X)  indented  from  the
> right margin, which is wrong.
>
> I note that 1.22.3 does not have that problem.

Since  I  am not the one who introduced, nor fixed, this bug
in .DS, for now I can only venture a conjecture as  to  what
happened.  In  order to make .EQ work with the broken .DS, a
crude crutch had to be introduced that should compensate for
the  erroneously  increased  line length. Whatever kind soul
fixed the .DS bug in 1.22.4 was unaware of  the  .EQ  crutch
and  left  it  in.  As a result, it continues shortening the
line length.

I have assmed you shouldn't mind if I forwarded  your  valu-
able report to the mailing list.