Follow-up Comment #8, bug #67367 (group groff):
[comment #6 comment #6:]
> . ev an*env-header-and-footer
> . ie r LT&!(\\n[LT] = 0) \{\
> . lt \\n[LT]u
> . \}
>
By the way, that conditional expression is not doing what you appear to think
it is. When you use a conditional expression operator, like `r`, `d`, `o`, or
`e` (among several others), numeric expression syntax is unavailable to the
control flow request, and `&` is an operator only within a numeric
expression.
$ cat ATTIC/conditional-expressions-for-bjarni.groff
.nr LT&!(\\n[LT] 1
.ie r LT&!(\\n[LT] .tm TRUE
.el .tm FALSE
$ nroff ATTIC/conditional-expressions-for-bjarni.groff
TRUE
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