eval 'exec perl -Ssw $0 "$@"'
	if 0;

# Usage $0 manpage 
# Parse my man page formats.

die "Usage: $0  [ manpage ] \n" unless $#ARGV <= 0;

$firstSH = 1;
$inDL = 0;

warn "Doing $ARGV[0]\n";

open(STDIN, "$ARGV[0]") if ($#ARGV == 0);

while (<>) {
	next if (/^\.\\"/);

	if (/^\.TH\s/) {
		# .TH BW_MEM_CP 8 "$Date: 97/06/14 21:14:10-07:00 $" "(c)1994 Larry McVoy" "LMBENCH"
		split;
		print "<TITLE>$_[1]($_[2]) - LMBENCH man page</TITLE>\n";
		print "<H2>$_[1]($_[2]) - LMBENCH man page</H2><HR>\n";
		next;
	}

	if (/^\.SH\s/) {
		s/.SH\s+//;
		s/"//g;
		chop;
		print "</DL>\n" unless $firstSH; $firstSH = 0;
		print "</DL>\n" if $inDL; $inDL = 0;
		print "<DL><DT><H4>$_</H4><DD>\n";
		next;
	}

	next if &fontfont;

	if (/^\.LP\s/ || /^\.PP/) {
		s/..P\s+//;
		chop;
		print "<P>\n";
		next;
	}

	if (/^\.TP/) {		# treat as a DT list
		$_ = <>;
		&html;
		chop;
		print "</DL>\n" if ($inDL);
		print "<DL><DT>";
		print unless &fontfont;
		print "<DD><BR>\n";
		$inDL = 1;
		next;
	}

	if (/^\.IP/) {		# treat as a DT list
		s/^\.IP\s*//;
		chop;
		s/"//;
		s/".*//;
		&html;
		print "</DL>\n" if ($inDL);
		print "<DL><DT>$_<DD><BR>\n";
		$inDL = 1;
		next;
	}

	if (/^\.sp/) {
		print "<PRE>\n</PRE>\n";
		next;
	}

	next  if (/^\.in/ || /^\.ps/);	# skip this stuff.

	if (/^\.br/) {
		print "<BR>\n";
		next;
	}

	if (/^\.nf/ || /^\.DS/) {		# starting a display
		print "<PRE>\n";
		while (<>) {
			last if /^\.fi/;
			last if /^\.DE/;
			next if /^\./;
			&html;
			print "\t$_";	# XXX - a screwy way of indenting
		}
		print "</PRE>\n";
		next;
	}

	if (/^\.ft C[WB]/) {
		local($pre) = 0;

		print "<CODE>\n";
		while (<>) {
			last if /^\.ft\s*$/;
			if (/^\.nf/) {
				$pre = 1;
				print "<PRE>\n";
				next;
			}
			if ($pre && /^\.fi/) {
				print "</PRE>\n";
				$pre = 0;
				next;
			}
			next if /^\.br/;
			&html;
			print;
		}
		print "</CODE>\n";
		next;
	}

	if (/\\f\(C[WB]/) {
		&html;
		s/\\f\(C[WB]/<CODE>/;
		while (!/\\f/) {
			&html;
			print;
			$_ = <>;
		}
		s/\\fP/<\/CODE>/;
		print;
		next;
	}

	if (/\\fB/) {
		&html;
		s/\\fB/<STRONG>/;
		while (!/\\f/) {
			print;
			$_ = <>;
			&html;
		}
		s/\\fP/<\/STRONG>/;
		print;
		next;
	}

	if (/\\fI/) {
		&html;
		s/\\fB/<EM>/;
		while (!/\\f/) {
			print;
			$_ = <>;
			&html;
		}
		s/\\fP/<\/EM>/;
		print;
		next;
	}

	if (/^\.ti/) {		# one line display
		print "<PRE>\n";
		$_ = <>;
		&html;
		print;
		print "</PRE>\n";
		next;
	}

	if (/^\.de\s+/) {
		s/^\.de\s+//;
		warn "$ARGV[0]: Ignoring definition: $_";
		while (<>) {
			last if /^\.\./;
		}
		next;
	}
	
	# Warn about unimplemented troff/man commands
	if (/^\./) {
		chop;
		warn "$ARGV[0] unimp: \"$_\"\n";
		next;
	}

	if (/\\f/) {
		warn "$ARGV[0]: missed font: \"$_\"\n";
	}

	# Catchall for all the weirdball things I do.
	s/^\\\&\.\\\|\.\\\|\./.../;
	s/\\-/-/;

	&html;

	print;
}
exit 0;

sub html
{
	# HTML things that I've encountered.
	s/"/&quot;/g;
	s/</&lt;/g;
	s/>/&gt;/g;
}

sub fontfont {

	if (/^\.BI\s/) {
		s/.BI\s+//;
		chop;
		split;
		print "<STRONG>$_[0]</STRONG><EM>$_[1]</EM>\n";
		return 1;
	}

	if (/^\.IB\s/) {
		s/.IB\s+//;
		chop;
		split;
		print "<EM>$_[0]</EM><STRONG>$_[1]</STRONG>\n";
		return 1;
	}

	if (/^\.IR\s/) {
		s/.IR\s+//;
		chop;
		split;
		print "<EM>$_[0]</EM>$_[1]\n";
		return 1;
	}

	if (/^\.BR\s/) {
		s/.BR\s+//;
		chop;
		split;
		print "<STRONG>$_[0]</STRONG>$_[1]\n";
		return 1;
	}

	if (/^\.B\s/) {
		s/.B\s+//;
		chop;
		print "<STRONG>$_</STRONG>\n";
		return 1;
	}

	if (/^\.I\s/) {
		s/.I\s+//;
		chop;
		print "<EM>$_</EM>\n";
		return 1;
	}

	return 0;
}
