[bug #57538] .ne is off by one in some macro packages even when using no other facilities of that package

[Dave]

Follow-up Comment #20, bug #57538 (project groff):

[comment #18 comment #18:]
> I ported your reproducer to ms,

Your port doesn't actually reproduce the situation the other examples are
demonstrating, at least not with a US-letter paper setting.  I get this
output:

$ groff -a need1.ms 2> /dev/null
<beginning of page>
1
2
3
4
5
6
  
<beginning of page>
 -2- 

But having all lines on the first page doesn't set up the situation where we
can test the bug; for that, there needs to be a page break before line 6.

I was able to bring this about by changing the 9i to 9.3i.  And once that's
done, the two files do in fact show the bug present in -ms:

$ sed s/9i/9.3i/ need1.ms | groff -a 2> /dev/null
<beginning of page>
1
2
3
4
5
  
<beginning of page>
 -2- 
6
  
$ sed s/9i/9.3i/ need2.ms | groff -a 2> /dev/null
<beginning of page>
1
2
  
<beginning of page>
 -2- 
3
4
5
6

This output is the same for me with 1.22.4 and 1.23.0.rc4.


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