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#!/usr/bin/perl
### ToDo
# Properly implement -columns in the "my %lists" definition...
#
# .Xr requires at least 1 arg, the code here expects at least 2
###
package mdoc2man;
use strict;
use warnings;
use File::Basename;
use lib dirname(__FILE__);
use Mdoc qw(hs ns pp mapwords son soff stoggle gen_encloser);
########
## Basic
########
Mdoc::def_macro( '.Sh', sub { '.SH', hs, @_ }, raw => 1);
Mdoc::def_macro( '.Ss', sub { '.SS', hs, @_ }, raw => 1);
Mdoc::def_macro( '.Pp', sub { ".sp \\n(Ppu\n.ne 2\n" } );
Mdoc::def_macro( '.Nd', sub { "\\- @_" } );
# Macros that enclose things
Mdoc::def_macro( '.Brq', gen_encloser(qw({ })) , greedy => 1 );
Mdoc::def_macro( '.Op' , gen_encloser(qw([ ])) , greedy => 1 );
Mdoc::def_macro( '.Qq' , gen_encloser(qw(" ")) , greedy => 1 );
Mdoc::def_macro( '.Dq' , gen_encloser(qw(\*[Lq] \*[Rq])), greedy => 1 );
Mdoc::def_macro( '.Ql' , gen_encloser(qw(\[oq] \[cq])) , greedy => 1 );
Mdoc::def_macro( '.Sq' , gen_encloser(qw(\[oq] \[cq])) , greedy => 1 );
Mdoc::def_macro( '.Pq' , gen_encloser(qw/( )/) , greedy => 1 );
Mdoc::def_macro( '.D1' , sub { ".in +4\n", ns, @_ , ns , "\n.in -4" } , greedy => 1);
Mdoc::def_macro( 'Oo', sub { '[', @_ } );
Mdoc::def_macro( 'Oc', sub { ']', @_ } );
Mdoc::def_macro( 'Po', sub { '(', @_} );
Mdoc::def_macro( 'Pc', sub { ')', @_ } );
Mdoc::def_macro( 'Bro', sub { '{', ns, @_ } );
Mdoc::def_macro( 'Brc', sub { '}', @_ } );
Mdoc::def_macro( '.Oo', gen_encloser(qw([ ])), concat_until => '.Oc' );
Mdoc::def_macro( '.Bro', gen_encloser(qw({ })), concat_until => '.Brc' );
Mdoc::def_macro( '.Po', gen_encloser(qw/( )/), concat_until => '.Pc' );
Mdoc::def_macro( '.Ev', sub { @_ } );
Mdoc::def_macro( '.An', sub { ".NOP ", @_, "\n.br" }, raw => 1 );
Mdoc::def_macro( '.Li', sub { mapwords {"\\f[C]$_\\f[]"} @_ } );
Mdoc::def_macro( '.Cm', sub { mapwords {"\\f\\*[B-Font]$_\\f[]"} @_ } );
Mdoc::def_macro( '.Ic', sub { mapwords {"\\f\\*[B-Font]$_\\f[]"} @_ } );
Mdoc::def_macro( '.Fl', sub { mapwords {"\\f\\*[B-Font]\\-$_\\f[]"} @_ } );
Mdoc::def_macro( '.Ar', sub { mapwords {"\\f\\*[I-Font]$_\\f[]"} @_ } );
Mdoc::def_macro( '.Em', sub { mapwords {"\\fI$_\\f[]"} @_ } );
Mdoc::def_macro( '.Va', sub { mapwords {"\\fI$_\\f[]"} @_ } );
Mdoc::def_macro( '.Sx', sub { mapwords {"\\fI$_\\f[]"} @_ } );
Mdoc::def_macro( '.Xr', sub { "\\fC".(shift)."\\fR(".(shift).")\\f[]", @_ } );
Mdoc::def_macro( '.Fn', sub { "\\f\\*[B-Font]".(shift)."\\fR()\\f[]" } );
Mdoc::def_macro( '.Fn', sub { "\\fB".(shift)."\\fR()\\f[]" } );
Mdoc::def_macro( '.Fx', sub { "FreeBSD", @_ } );
Mdoc::def_macro( '.Ux', sub { "UNIX", @_ } );
Mdoc::def_macro( '.No', sub { ".NOP", map { ($_, ns) } @_ } );
Mdoc::def_macro( '.Pa', sub { mapwords {"\\fI$_\\f[]"} @_; } );
{
my $name;
Mdoc::def_macro('.Nm', sub {
$name = shift if (!$name);
"\\f\\*[B-Font]$name\\fP", @_
} );
}
########
## lists
########
my %lists = (
bullet => sub {
Mdoc::def_macro('.It', sub { '.IP \fB\(bu\fP 2' });
},
column => sub {
Mdoc::def_macro('.It', sub { '.IP \fB\(bu\fP 2' });
},
tag => sub {
my (%opts) = @_;
my $width = '';
if (exists $opts{width}) {
$width = ' '.((length $opts{width})+1);
}
if (exists $opts{compact}) {
my $dobrns = 0;
Mdoc::def_macro('.It', sub {
my @ret = (".TP$width\n.NOP", hs);
if ($dobrns) {
".br\n.ns\n", ns, @ret, @_;
}
else {
$dobrns = 1;
@ret, @_;
}
}, raw => 1);
}
else {
Mdoc::def_macro('.It', sub {
".TP$width\n.NOP", hs, @_
}, raw => 1);
}
},
);
Mdoc::set_Bl_callback(do { my $nested = 0; sub {
my $type = shift;
my %opts = Mdoc::parse_opts(@_);
if (defined $type && $type =~ /-(\w+)/ && exists $lists{$1}) {
# Wrap nested lists with .RS and .RE
Mdoc::set_El_callback(sub {
return '.RE' if $nested-- > 1;
return '.PP';
});
$lists{$1}->(%opts);
if ($nested++) {
return ".RS";
}
else {
return ();
}
}
else {
die "Invalid list type <$type>";
}
}}, raw => 1);
# don't bother with arguments for now and do what mdoc2man'.sh' did
Mdoc::def_macro('.Bd', sub { ".br\n.in +4\n.nf" } );
Mdoc::def_macro('.Ed', sub { ".in -4\n.fi" } );
Mdoc::set_Re_callback(sub {
my ($reference) = @_;
<<"REF";
$reference->{authors},
\\fI$reference->{title}\\fR,
$reference->{optional}\n.PP
REF
});
# Define all macros which have the same sub for inline and standalone macro
for (qw(Xr Em Ar Fl Ic Cm Qq Op Nm Pa Sq Li Va Brq Pq Fx Ux)) {
my $m = Mdoc::get_macro(".$_");
Mdoc::def_macro($_, delete $m->{run}, %$m);
}
sub print_line {
print shift;
print "\n";
}
sub run {
print <<'DEFS';
.de1 NOP
. it 1 an-trap
. if \\n[.$] \,\\$*\/
..
.ie t \
.ds B-Font [CB]
.ds I-Font [CI]
.ds R-Font [CR]
.el \
.ds B-Font B
.ds I-Font I
.ds R-Font R
DEFS
while (my ($macro, @args) = Mdoc::parse_line(\*STDIN, \&print_line)) {
my @ret = Mdoc::call_macro($macro, @args);
print_line(Mdoc::to_string(@ret)) if @ret;
}
return 0;
}
exit run(@ARGV) unless caller;
1;
__END__
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