Update of bug #42675 (group groff):
Summary: \} considered as macro argument => [troff] \}
treated as macro argument
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Follow-up Comment #8:
Ingo's exhibit, rewritten for AT&T portability, manifests the richest
divergence of formatter behaviors that I've yet seen.
Input:
.de CA
\\n(.$
..
.if n \{.CA \}
.if n \{.CA \}
.if n \{.CA foo\}
.if n \{.CA foo \}
Command:
$ nroff ./count_args.roff
Output:
DWB 3.3 _nroff_:
0 0 1 1
Heirloom Doctools _nroff_:
0 0 1 1
Solaris 10 _nroff_:
1 1 1 2
GNU _nroff_:
1 1 1 2
Unix Version 7 _nroff_:
1 1 1 2
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