Input file: mandoc.char.7 (from Debian mandoc version mdocml (1.14.6-2) and with a fixed bug #1022809)
See also groff bug #57720. >From "[test-][g|n]roff -mandoc -ww -z mandoc_char.7" troff:mandoc_char.7:725: warning: macro 'R' not defined troff:mandoc_char.7:726: warning: macro 'Tm' not defined troff:mandoc_char.7:732: warning: macro 'lq' not defined troff:mandoc_char.7:733: warning: macro 'rq' not defined troff:mandoc_char.7:735: warning: macro 'va' not defined The input file is written in the mdoc language, "mdoc(7)".