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|
#! /usr/bin/perl
### To Do:
# the Bl -column command needs work:
# - support for "-offset"
# - support for the header widths
#
###
package mdoc2texi;
use strict;
use warnings;
use File::Basename qw(dirname);
use lib dirname(__FILE__);
use Mdoc qw(ns pp hs mapwords gen_encloser nl);
# Ignore commments
Mdoc::def_macro( '.\"', sub { () } );
# Enclosers
Mdoc::def_macro( '.An', sub { @_, ns, '@*' } );
Mdoc::def_macro( '.Aq', gen_encloser(qw(< >)), greedy => 1);
Mdoc::def_macro( '.Bq', gen_encloser(qw([ ])), greedy => 1);
Mdoc::def_macro( '.Brq', gen_encloser(qw(@{ @})), greedy => 1);
Mdoc::def_macro( '.Pq', gen_encloser(qw/( )/), greedy => 1);
Mdoc::def_macro( '.Qq', gen_encloser(qw(" ")), greedy => 1);
Mdoc::def_macro( '.Op', gen_encloser(qw(@code{[ ]})), greedy => 1);
Mdoc::def_macro( '.Ql', gen_encloser(qw(@quoteleft{} @quoteright{})),
greedy => 1);
Mdoc::def_macro( '.Sq', gen_encloser(qw(@quoteleft{} @quoteright{})),
greedy => 1);
Mdoc::def_macro( '.Dq', gen_encloser(qw(@quotedblleft{} @quotedblright{})),
greedy => 1);
Mdoc::def_macro( '.Eq', sub {
my ($o, $c) = (shift, pop);
gen_encloser($o, $c)->(@_)
}, greedy => 1);
Mdoc::def_macro( '.D1', sub { "\@example\n", ns, @_, ns, "\n\@end example" },
greedy => 1);
Mdoc::def_macro( '.Dl', sub { "\@example\n", ns, @_, ns, "\n\@end example" },
greedy => 1);
Mdoc::def_macro( '.Oo', gen_encloser(qw(@code{[ ]})), concat_until => '.Oc');
Mdoc::def_macro( 'Oo', sub { '@code{[', ns, @_ } );
Mdoc::def_macro( 'Oc', sub { @_, ns, pp(']}') } );
Mdoc::def_macro( '.Bro', gen_encloser(qw(@code{@{ @}})), concat_until => '.Brc');
Mdoc::def_macro( 'Bro', sub { '@code{@{', ns, @_ } );
Mdoc::def_macro( 'Brc', sub { @_, ns, pp('@}}') } );
Mdoc::def_macro( '.Po', gen_encloser(qw/( )/), concat_until => '.Pc');
Mdoc::def_macro( 'Po', sub { '(', @_ } );
Mdoc::def_macro( 'Pc', sub { @_, ')' } );
Mdoc::def_macro( '.Ar', sub { mapwords {"\@kbd{$_}"} @_ } );
Mdoc::def_macro( '.Fl', sub { mapwords {"\@code{-$_}"} @_ } );
Mdoc::def_macro( '.Cm', sub { mapwords {"\@code{-$_}"} @_ } );
Mdoc::def_macro( '.Ic', sub { mapwords {"\@code{$_}"} @_ } );
Mdoc::def_macro( '.Cm', sub { mapwords {"\@code{$_}"} @_ } );
Mdoc::def_macro( '.Li', sub { mapwords {"\@code{$_}"} @_ } );
Mdoc::def_macro( '.Va', sub { mapwords {"\@code{$_}"} @_ } );
Mdoc::def_macro( '.Em', sub { mapwords {"\@emph{$_}"} @_ } );
Mdoc::def_macro( '.Fn', sub { '@code{'.(shift).'()}' } );
Mdoc::def_macro( '.Ss', sub { "\@subsubsection", hs, @_ });
Mdoc::def_macro( '.Sh', sub {
my $name = "@_";
"\@node", hs, "$name\n", ns, "\@subsection", hs, $name
});
Mdoc::def_macro( '.Ss', sub { "\@subsubsection", hs, @_ });
Mdoc::def_macro( '.Xr', sub { '@code{'.(shift).'('.(shift).')}', @_ } );
Mdoc::def_macro( '.Sx', gen_encloser(qw(@ref{ })) );
Mdoc::def_macro( '.Ux', sub { '@sc{unix}', @_ } );
Mdoc::def_macro( '.Fx', sub { '@sc{freebsd}', @_ } );
{
my $name;
Mdoc::def_macro('.Nm', sub {
$name = shift || $ENV{AG_DEF_PROG_NAME} || 'XXX' if (!$name);
"\@code{$name}"
} );
}
Mdoc::def_macro( '.Pa', sub { mapwords {"\@file{$_}"} @_ } );
Mdoc::def_macro( '.Pp', sub { '' } );
# Setup references
Mdoc::def_macro( '.Rs', sub { "\@*\n", @_ } );
Mdoc::set_Re_callback(sub {
my ($reference) = @_;
"@*\n", ns, $reference->{authors}, ',', "\@emph{$reference->{title}}",
',', $reference->{optional}
});
# Set up Bd/Ed
my %displays = (
literal => [ '@verbatim', '@end verbatim' ],
);
Mdoc::def_macro( '.Bd', sub {
(my $type = shift) =~ s/^-//;
die "Not supported display type <$type>"
if not exists $displays{ $type };
my $orig_ed = Mdoc::get_macro('.Ed');
Mdoc::def_macro('.Ed', sub {
Mdoc::def_macro('.Ed', delete $orig_ed->{run}, %$orig_ed);
$displays{ $type }[1];
});
$displays{ $type }[0]
});
Mdoc::def_macro('.Ed', sub { die '.Ed used but .Bd was not seen' });
# Set up Bl/El
my %lists = (
bullet => [ '@itemize @bullet', '@end itemize' ],
tag => [ '@table @asis', '@end table' ],
column => [ '@table @asis', '@end table' ],
);
Mdoc::set_Bl_callback(sub {
my $type = shift;
die "Specify a list type" if not defined $type;
$type =~ s/^-//;
die "Not supported list type <$type>" if not exists $lists{ $type };
Mdoc::set_El_callback(sub { $lists{ $type }[1] });
$lists{ $type }[0]
});
Mdoc::def_macro('.It', sub { '@item', hs, @_ });
for (qw(Aq Bq Brq Pq Qq Ql Sq Dq Eq Ar Fl Ic Pa Op Cm Li Fx Ux Va)) {
my $m = Mdoc::get_macro(".$_");
Mdoc::def_macro($_, delete $m->{run}, %$m);
}
sub print_line {
my $s = shift;
$s =~ s/\\&//g;
print "$s\n";
}
sub preprocess_args {
$_ =~ s/([{}])/\@$1/g for @_;
}
sub run {
while (my ($macro, @args) = Mdoc::parse_line(\*STDIN, \&print_line,
\&preprocess_args)
) {
my @ret = Mdoc::call_macro($macro, @args);
if (@ret) {
my $s = Mdoc::to_string(@ret);
print_line($s);
}
}
return 0;
}
exit run(@ARGV) unless caller;
|
