Re: mom question

[Peter Schaffter]

Ulrich --

I'm CC'ing this to the list again because your server is still
returning my emails with a singularly unhelpful 554 error.

On Thu, Dec 09, 2021, Ulrich Lauther wrote:
> if I process this input:
> 
> .PAPER A4
> .B_MARGIN 1.5c
> .AUTOLEAD 2
> .PT_SIZE 16
> .LEFT
> line_1
> line_2
> 
> .NEWPAGE
> 
> line3
> line4
> 
> with mom, I get 3 pages of output, one empty.
> 
> Without .B_MARGIN, I get two pages, as expected.
> 
> Is this a bug, a feature, or my fault ?

It's a bug.  I have a few other small bugs to deal with, so I'll
wrap this up with them when I commit the changes and put the bugfix
release on the mom website, which should be within a day or two.

Meantime, you can replace the NEWPAGE macro definition with the one
below, either by updating your om.tmac or by putting the definition
in a file and adding

  .rm NEWPAGE
  .so <file>

to the top of your file.

.MAC NEWPAGE END
.    br
.    if \\n[#DOC_TYPE]=5 \{\
.       if \\n[#NUM_ARGS]>0 \
.       pdftransition PAGE \\$1
.    \}
.    if !\\n[defer] \{\
.       nr #NEWPAGE 1
.       rr tbl*no-print-header
.    \}
.    ie !\\n[#DOCS]=1 \
.       if \\n[#B_MARGIN_SET]=1 .DO_B_MARGIN
.    el \{\
.       if \\n[#COLUMNS]=1 .nr #COL_NUM \\n[#NUM_COLS]
.       if !\\n[#FN_DEPTH] \{\
.          ch FN_OVERFLOW_TRAP
.          nr #RESET_FN_OVERFLOW_TRAP 1
.       \}
.    \}
.    if dPDF.EXPORT \
.       if \\n[#FLEX_ACTIVE] \
.          if !\\n[#NO_FLEX] \
.             tm .ds pre-newpage-\\n% \\n%@\\n[#COL_NUM]
.    ie \\n[#DOCS]=1 \{\
.       if (\\n[@TOP]=0):(\\n[#END_COVER]=1) .bp
.       rr #END_COVER
.       if \\n[#RESET_FN_OVERFLOW_TRAP] \{\
.          wh -\\n[#FN_OVERFLOW_TRAP_POS]u FN_OVERFLOW_TRAP
.          rr #RESET_FN_OVERFLOW_TRAP_POS
.      \}
.    \}
.    el .if !\\n[#B_MARGIN_SET]=1 .bp
.END

-- 
Peter Schaffter
https://www.schaffter.ca