[bug #45452] MM macrso: .DS with indent uses wrong line length

[Carsten Kunze]

URL:
  <http://savannah.gnu.org/bugs/?45452>

                 Summary: MM macrso: .DS with indent uses wrong line length
                 Project: GNU troff
            Submitted by: carstenkunze
            Submitted on: Wed 01 Jul 2015 09:27:56 AM GMT
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

If .DS with first argument '1' or 'I' is used with the MM macros the output
should be displayed with an additinal indention of \n[Si]n.  This is done by
writing the text into a diversion with zero indent and output the diversion
with the additional indent of \n[Si]n.  But since the line length from before
.DS is used in the diversion too the effective line length for ".DS 1" is too
large.  The following patch fixes this:

diff --git a/contrib/mm/m.tmac b/contrib/mm/m.tmac
index 4b76039..09cc03b 100644
--- a/contrib/mm/m.tmac
+++ b/contrib/mm/m.tmac
@@ -2083,7 +2083,9 @@ in=\\n[.i] fi=\\n[.u] .d=\\n[.d] nl=\\n[nl] pg=\\n[%]
 'in 0
 .di ds*div!\\n[ds*snr]
 .\"
address@hidden \\n[ds*old-ll]
+.nr ds*div-ll \\n[ds*old-ll]
+.if \\n[ds*format]=1 .nr ds*div-ll -\\n(Sin
address@hidden \\n[ds*div-ll]
 .nr df*float 0
 ..
 .\"--------------------------------------------




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