1 #! /usr/bin/perl 2 3 ### To Do: 4 5 # the Bl -column command needs work: 6 # - support for "-offset" 7 # - support for the header widths 8 9 # 10 11 ### 12 13 package mdoc2texi; 14 use strict; 15 use warnings; 16 use File::Basename qw(dirname); 17 use lib dirname(__FILE__); 18 use Mdoc qw(ns pp hs mapwords gen_encloser nl); 19 20 # Ignore commments 21 Mdoc::def_macro( '.\"', sub { () } ); 22 23 # Enclosers 24 Mdoc::def_macro( '.An', sub { @_, ns, '@*' } ); 25 Mdoc::def_macro( '.Aq', gen_encloser(qw(< >)), greedy => 1); 26 Mdoc::def_macro( '.Bq', gen_encloser(qw([ ])), greedy => 1); 27 Mdoc::def_macro( '.Brq', gen_encloser(qw(@{ @})), greedy => 1); 28 Mdoc::def_macro( '.Pq', gen_encloser(qw/( )/), greedy => 1); 29 Mdoc::def_macro( '.Qq', gen_encloser(qw(" ")), greedy => 1); 30 Mdoc::def_macro( '.Op', gen_encloser(qw(@code{[ ]})), greedy => 1); 31 Mdoc::def_macro( '.Ql', gen_encloser(qw(@quoteleft{} @quoteright{})), 32 greedy => 1); 33 Mdoc::def_macro( '.Sq', gen_encloser(qw(@quoteleft{} @quoteright{})), 34 greedy => 1); 35 Mdoc::def_macro( '.Dq', gen_encloser(qw(@quotedblleft{} @quotedblright{})), 36 greedy => 1); 37 Mdoc::def_macro( '.Eq', sub { 38 my ($o, $c) = (shift, pop); 39 gen_encloser($o, $c)->(@_) 40 }, greedy => 1); 41 Mdoc::def_macro( '.D1', sub { "\@example\n", ns, @_, ns, "\n\@end example" }, 42 greedy => 1); 43 Mdoc::def_macro( '.Dl', sub { "\@example\n", ns, @_, ns, "\n\@end example" }, 44 greedy => 1); 45 46 Mdoc::def_macro( '.Oo', gen_encloser(qw(@code{[ ]})), concat_until => '.Oc'); 47 Mdoc::def_macro( 'Oo', sub { '@code{[', ns, @_ } ); 48 Mdoc::def_macro( 'Oc', sub { @_, ns, pp(']}') } ); 49 50 Mdoc::def_macro( '.Bro', gen_encloser(qw(@code{@{ @}})), concat_until => '.Brc'); 51 Mdoc::def_macro( 'Bro', sub { '@code{@{', ns, @_ } ); 52 Mdoc::def_macro( 'Brc', sub { @_, ns, pp('@}}') } ); 53 54 Mdoc::def_macro( '.Po', gen_encloser(qw/( )/), concat_until => '.Pc'); 55 Mdoc::def_macro( 'Po', sub { '(', @_ } ); 56 Mdoc::def_macro( 'Pc', sub { @_, ')' } ); 57 58 Mdoc::def_macro( '.Ar', sub { mapwords {"\@kbd{$_}"} @_ } ); 59 Mdoc::def_macro( '.Fl', sub { mapwords {"\@code{-$_}"} @_ } ); 60 Mdoc::def_macro( '.Cm', sub { mapwords {"\@code{-$_}"} @_ } ); 61 Mdoc::def_macro( '.Ic', sub { mapwords {"\@code{$_}"} @_ } ); 62 Mdoc::def_macro( '.Cm', sub { mapwords {"\@code{$_}"} @_ } ); 63 Mdoc::def_macro( '.Li', sub { mapwords {"\@code{$_}"} @_ } ); 64 Mdoc::def_macro( '.Va', sub { mapwords {"\@code{$_}"} @_ } ); 65 Mdoc::def_macro( '.Em', sub { mapwords {"\@emph{$_}"} @_ } ); 66 Mdoc::def_macro( '.Fn', sub { '@code{'.(shift).'()}' } ); 67 Mdoc::def_macro( '.Ss', sub { "\@subsubsection", hs, @_ }); 68 Mdoc::def_macro( '.Sh', sub { 69 my $name = "@_"; 70 "\@node", hs, "$name\n", ns, "\@subsection", hs, $name 71 }); 72 Mdoc::def_macro( '.Ss', sub { "\@subsubsection", hs, @_ }); 73 Mdoc::def_macro( '.Xr', sub { '@code{'.(shift).'('.(shift).')}', @_ } ); 74 Mdoc::def_macro( '.Sx', gen_encloser(qw(@ref{ })) ); 75 Mdoc::def_macro( '.Ux', sub { '@sc{unix}', @_ } ); 76 Mdoc::def_macro( '.Fx', sub { '@sc{freebsd}', @_ } ); 77 { 78 my $name; 79 Mdoc::def_macro('.Nm', sub { 80 $name = shift || $ENV{AG_DEF_PROG_NAME} || 'XXX' if (!$name); 81 "\@code{$name}" 82 } ); 83 } 84 Mdoc::def_macro( '.Pa', sub { mapwords {"\@file{$_}"} @_ } ); 85 Mdoc::def_macro( '.Pp', sub { '' } ); 86 87 # Setup references 88 89 Mdoc::def_macro( '.Rs', sub { "\@*\n", @_ } ); 90 Mdoc::set_Re_callback(sub { 91 my ($reference) = @_; 92 "@*\n", ns, $reference->{authors}, ',', "\@emph{$reference->{title}}", 93 ',', $reference->{optional} 94 }); 95 96 # Set up Bd/Ed 97 98 my %displays = ( 99 literal => [ '@verbatim', '@end verbatim' ], 100 ); 101 102 Mdoc::def_macro( '.Bd', sub { 103 (my $type = shift) =~ s/^-//; 104 die "Not supported display type <$type>" 105 if not exists $displays{ $type }; 106 107 my $orig_ed = Mdoc::get_macro('.Ed'); 108 Mdoc::def_macro('.Ed', sub { 109 Mdoc::def_macro('.Ed', delete $orig_ed->{run}, %$orig_ed); 110 $displays{ $type }[1]; 111 }); 112 $displays{ $type }[0] 113 }); 114 Mdoc::def_macro('.Ed', sub { die '.Ed used but .Bd was not seen' }); 115 116 # Set up Bl/El 117 118 my %lists = ( 119 bullet => [ '@itemize @bullet', '@end itemize' ], 120 tag => [ '@table @asis', '@end table' ], 121 column => [ '@table @asis', '@end table' ], 122 ); 123 124 Mdoc::set_Bl_callback(sub { 125 my $type = shift; 126 die "Specify a list type" if not defined $type; 127 $type =~ s/^-//; 128 die "Not supported list type <$type>" if not exists $lists{ $type }; 129 Mdoc::set_El_callback(sub { $lists{ $type }[1] }); 130 $lists{ $type }[0] 131 }); 132 Mdoc::def_macro('.It', sub { '@item', hs, @_ }); 133 134 for (qw(Aq Bq Brq Pq Qq Ql Sq Dq Eq Ar Fl Ic Pa Op Cm Li Fx Ux Va)) { 135 my $m = Mdoc::get_macro(".$_"); 136 Mdoc::def_macro($_, delete $m->{run}, %$m); 137 } 138 139 sub print_line { 140 my $s = shift; 141 $s =~ s/\\&//g; 142 print "$s\n"; 143 } 144 145 sub preprocess_args { 146 $_ =~ s/([{}])/\@$1/g for @_; 147 } 148 149 sub run { 150 while (my ($macro, @args) = Mdoc::parse_line(\*STDIN, \&print_line, 151 \&preprocess_args) 152 ) { 153 my @ret = Mdoc::call_macro($macro, @args); 154 if (@ret) { 155 my $s = Mdoc::to_string(@ret); 156 print_line($s); 157 } 158 } 159 return 0; 160 } 161 162 exit run(@ARGV) unless caller; 163