[bug #24050] [mm] footnote/end-of-page problem

[G. Branden Robinson]

Follow-up Comment #6, bug #24050 (group groff):

I'm less sure now that bug #56499 is the culprit in this case.


$ cat ./ATTIC/24050.mm
.de ptrap
.  nop \&.t=\\n[.t]u
.  if \\n[.g] .if r .trap \&.trap=\[lq]\\n[.trap]\[rq]
..
This is input line number 1 containing a bunch of meaningless words.
This is input line number 2 containing a bunch of meaningless words.
This is input line number 3 containing a bunch of meaningless words.
This is input line number 4 containing a bunch of meaningless words.
This is input line number 5 containing a bunch of meaningless words.
Skipping now to bottom of page.
.ptrap
.sp |693000u
This line references a footnote\*F;
.ptrap
.FS
.ptrap
This is the footnote.
It takes up 2 lines on U.S.\& letter paper.
If there is exactly that much space on the page for it,
it apparently clobbers the end-of-page trap,
so the first page overflows.
The footnote ends up on the next page.
.FE
This is input line number 6 containing a bunch of meaningless words.
This is input line number 7 containing a bunch of meaningless words.
This is input line number 8 containing a bunch of meaningless words.
This is input line number 9 containing a bunch of meaningless words.
This is input line number 10 containing a bunch of meaningless words.
This is input line number 11 containing a bunch of meaningless words.
This is input line number 12 containing a bunch of meaningless words.
This is input line number 13 containing a bunch of meaningless words.
This is input line number 14 containing a bunch of meaningless words.
This is input line number 15 containing a bunch of meaningless words.
This is input line number 16 containing a bunch of meaningless words.
This is input line number 17 containing a bunch of meaningless words.
This is input line number 18 containing a bunch of meaningless words.
This is input line number 19 containing a bunch of meaningless words.
This is input line number 20 containing a bunch of meaningless words.
$ ./build/test-groff -ab -ww -mm ./ATTIC/24050.mm 
<beginning of page>
 - 1 - 
  
This is input line number 1 containing a bunch of meaningless words. This is
input line number 2
containing a bunch of meaningless words. This is input line number 3
containing a bunch of meaningless
words. This is input line number 4 containing a bunch of meaningless words.
This is input line number 5
containing a bunch of meaningless words. Skipping now to bottom of page.
.t=612000u
.trap=<lq>pg@footer<rq>
This line references a footnote1; .t=39000u .trap=<lq>pg@footer<rq> This is
input line number 6 containing a
bunch of meaningless words. This is input line number 7 containing a bunch of
meaningless words. This is
input line number 8 containing a bunch of meaningless words. This is input
line number 9 containing a
bunch of meaningless words. This is input line number 10 containing a bunch of
meaningless words. This
is input line number 11 containing a bunch of meaningless words. This is input
line number 12 containing
a bunch of meaningless words. This is input line number 13 containing a bunch
of meaningless words.
This is input line number 14 containing a bunch of meaningless words. This is
input line number 15
containing a bunch of meaningless words. This is input line number 16
containing a bunch of meaningless
words. This is input line number 17 containing a bunch of meaningless words.
This is input line number
<beginning of page>
 - 2 - 
  
18 containing a bunch of meaningless words. This is input line number 19
containing a bunch of
meaningless words. This is input line number 20 containing a bunch of
meaningless words.

1.
 .t=2147483647u .trap=<lq><rq> This is the footnote. It takes up 2 lines on
U.S. letter paper. If there is exactly that much space on the
 page for it, it apparently clobbers the end-of-page trap, so the first page
overflows. The footnote ends up on the next page.
  
  
  




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