X.tmac

.nr _C \n(.C .cp 0 .char \(ru \D'l .5m 0' .char \(ul \v'.25m'\D'l .5m 0'\v'-.25m' .char \(br \v'.25m'\D'l 0 -1m'\v'.75m' .char \(rn \v'-.75m'\D'l .5m 0'\v'.75m' .char ~ \v'-.55m'\\s[\\n(.s/2u]\v'.2m'\(ti\v'-.2m'\s0\v'.55m' .char ^ \v'-.55m'\\s[\\n(.s/2u]\v'.3m'\(ha\v'-.3m'\s0\v'.55m' \D'l .39m 0''\h'.5m' \D'l .39m 0'\v'.4m'\D'l -.39m 0''\h'.5m' .cp \n(_C