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|
#! /usr/bin/perl -w
=encoding UTF-8
=head1 NAME
Locale::Po4a::Manext - private extended version of Locale::Po4a::Man
=head1 DESCRIPTION
Extended version of Locale::Po4a::Man that copes with a few intricacies of
man-db's manual pages, until such time as these are incorporated into po4a
proper.
=head1 SEE ALSO
L<Locale::Po4a::Man(3pm)>.
=head1 AUTHOR
Colin Watson <cjwatson@debian.org>
=head1 COPYRIGHT AND LICENCE
Copyright 2011 Colin Watson.
man-db is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
man-db is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with man-db; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=cut
package Locale::Po4a::Manext;
use 5.006;
use strict;
use warnings;
use vars qw(@ISA);
@ISA = qw(Locale::Po4a::Man);
use version;
use Locale::Po4a::Man;
use Locale::Po4a::TransTractor;
sub initialize {
my $self = shift;
$self->SUPER::initialize(@_);
$self->{manext_shift_tbl_state} = 0;
$self->{manext_shift_tbl_lines} = [];
$self->{manext_push_tbl_state} = 0;
$self->{manext_push_tbl_line} = '';
}
sub _parse_version {
# Parse a po4a version string. Unfortunately these aren't always
# directly parseable using version->parse, because they may have more
# than two components without a leading "v".
my $version = shift;
$version = "v$version" unless $version =~ /^v/;
return version->parse($version);
}
sub shiftline {
my $self = shift;
if (_parse_version($Locale::Po4a::TransTractor::VERSION) >= 'v0.47') {
return $self->SUPER::shiftline();
}
my ($line, $ref);
if (@{$self->{manext_shift_tbl_lines}}) {
($line, $ref) = @{shift @{$self->{manext_shift_tbl_lines}}};
return ($line, $ref);
}
NEXT_LINE:
($line, $ref) = $self->SUPER::shiftline();
if (!defined $line) {
# end of file
return ($line, $ref);
}
if ($line =~ /^\.TS/) {
$self->{manext_shift_tbl_state} = 1;
} elsif ($line =~ /^\.TE/) {
$self->{manext_shift_tbl_state} = 0;
} elsif ($self->{manext_shift_tbl_state} == 1) {
if ($line =~ /\.$/) {
$self->{manext_shift_tbl_state} = 2;
}
} elsif ($self->{manext_shift_tbl_state} == 2) {
# Theoretically s/@/\t/g should be enough, but for some reason
# Locale::Po4a::Man splits on /\\t/ rather than on /\t/.
if ($line =~ /T\{$/) {
my ($l2, $r2) = $self->SUPER::shiftline();
while (defined $l2) {
$line .= $l2;
last if $l2 =~ /^T\}/;
($l2, $r2) = $self->SUPER::shiftline();
}
}
if ($line =~ /@/) {
for my $column (split /@/, $line) {
next if $column =~ /^$/m;
push @{$self->{manext_shift_tbl_lines}}, [$column, $ref];
}
($line, $ref) = @{shift @{$self->{manext_shift_tbl_lines}}};
return ($line, $ref);
}
}
return ($line, $ref);
}
sub pushline {
my ($self, $line) = (shift, shift);
if (_parse_version($Locale::Po4a::TransTractor::VERSION) >= 'v0.47') {
$self->SUPER::pushline($line);
return;
}
if ($line =~ /^\.TS/) {
$self->{manext_push_tbl_state} = 1;
} elsif ($line =~ /^\.TE/) {
$self->{manext_push_tbl_state} = 0;
} elsif ($self->{manext_push_tbl_state} == 1) {
if ($line =~ /\.$/) {
$self->{manext_push_tbl_state} = 2;
}
} elsif ($self->{manext_push_tbl_state} == 2) {
if (length $self->{manext_push_tbl_line}) {
$self->{manext_push_tbl_line} .= '@';
}
$self->{manext_push_tbl_line} .= $line;
if ($self->{manext_push_tbl_line} =~ /\n$/) {
$self->SUPER::pushline($self->{manext_push_tbl_line});
$self->{manext_push_tbl_line} = '';
}
return;
}
$self->SUPER::pushline($line);
}
sub translate {
my ($self, $str, $ref, $type) = (shift, shift, shift, shift);
my %options = @_;
if (defined $type and $type eq 'tbl table') {
if (_parse_version($Locale::Po4a::TransTractor::VERSION) < 'v0.47') {
if ($str =~ /^T\{\n?(.*)T\}(\n?)$/s) {
my $inner = $1;
chomp $inner;
return "T{\n" .
$self->SUPER::translate($inner, $ref, $type, %options) .
"\nT}$2";
}
} else {
my $postline = '';
if (chomp $str) {
$postline = "\n";
}
if ($str =~ /@/) {
return join('@', map {
$self->translate($_, $ref, 'tbl table manext')
} split (/@/, $str, -1)) . $postline;
} else {
return $self->translate($str, $ref, 'tbl table manext') .
$postline;
}
}
}
if (defined $type and $type =~ /^tbl table(?: manext)$/) {
# Do not translate horizontal rules.
return $str if $str =~ /^[-_=]$/;
# Do not translate table entries that consist only of numbers (e.g.
# the sections table in man(1)).
return $str if $str =~ /^[0-9]+$/;
# Do not translate table entries that consist only of a groff
# special character or escape (e.g. the --ascii translation table in
# man(1)).
if ($str =~ /^\\[^([]$/ or # e.g. \`
$str =~ /^\\\(..$/ or # e.g. \(bu
$str =~ /^\\\[.*?\]$/ or # e.g. \[bu]
$str =~ /^\\[^([][^([]$/ or # e.g. \fB
$str =~ /^\\[^([]\(..$/ or # e.g. \n(XX
$str =~ /^\\[^([]\[.*?\]$/) { # e.g. \*[softhyphen]
return $str;
}
# Do not translate "latin1" and "ascii" (from the --ascii
# translation table in man(1)).
return $str if $str =~ /^(?:latin1|ascii)$/;
# Do not translate symbols used in the --ascii translation table in
# man(1).
return $str if $str =~ /^[o'x]$/;
$type =~ s/ manext$//;
}
if (not defined $type and $self->{type} eq 'TH') {
# Do not translate page names and other similar headings.
return $str if $str =~ /^%.*%$/ or $str =~ /^[A-Z]+$/;
}
return $self->SUPER::translate($str, $ref, $type, %options);
}
1;
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