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#!/usr/bin/perl
## Copyright (C) 2001 Denis Barbier <barbier@debian.org>
##
## This program 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.
=head1 NAME
Webwml::Langs - get all languages in which w.d.o is translated
=head1 SYNOPSIS
use Webwml::Langs;
my $l = Webwml::Langs->new();
my @abbr = $l->iso3166();
my @langs = $l->names();
my %lang1 = $l->iso_name();
my %lang2 = $l->name_iso();
=head1 DESCRIPTION
This module parses english/template/debian/languages.wml and returns
the list of languages in which Debian web site is translated.
=head1 METHODS
=over 4
=cut
package Webwml::Langs;
use Carp;
use Local::VCS;
use strict;
use warnings;
=item new
This is the constructor. If called with an argument, it tells where to
find top-level webwml directory. Otherwise it is automatically
determined from VCS meta-info.
my $l = Webwml::Langs->new("/path/to/webwml");
=cut
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $VCS = Local::VCS->new();
my $root;
if (@_)
{
$root = shift;
} else
{
$root = $VCS->get_topdir();
}
my $self = _read($root);
bless ($self, $class);
return $self;
}
# read the languages.wml, search for the %langs variable, and evaluate it
# within this program
# TODO: pretty hacky, rewrite to avoid eval()
# TODO: or rather define the lnaguages in a module, and include those in
# languages.wml
sub _read {
my $root = shift || Local::VCS->get_topdir();
open( my $file, '<', "$root/english/template/debian/languages.wml")
or croak ("Unable to read $root/english/template/debian/languages.wml");
my $decl = '';
my $start = 1;
# This variable is declared in english/template/debian/languages.wml
my %langs;
while ( my $line = <$file> )
{
# continue until we find the line defining the %langs variable
next if ( $start and not $line =~ m{my \s+ \%langs \s* =}x );
# skip comments
next if $line =~ m{^\s*#};
$start = 0;
$decl .= $line;
# end of the variable declaration
last if $line =~ m{\);};
}
close( $file );
# remove "my" from the front of the declaration and evaluate it
$decl =~ s/^\s*my//s;
eval "$decl";
carp $@ . " when parsing \n$decl\nin Webwml::Langs\n" if $@;
return \%langs;
}
=item iso3166
Return the list of country codes.
my @abbr = $l->iso3166();
=cut
sub iso3166
{
my $self = shift;
return values %{$self};
}
=item names
Return the list of language names.
my @langs = $l->names();
=cut
sub names
{
my $self = shift;
return keys %{$self};
}
=item iso_name
Return a hash array I<code>/I<name>.
my %lang1 = $l->iso_name();
=cut
sub iso_name
{
my $self = shift;
return map { ${$self}{$_} => $_ } keys %$self;
}
=item name_iso
Return a hash array I<name>/I<code>.
my %lang2 = $l->name_iso();
=cut
sub name_iso
{
my $self = shift;
return %{$self};
}
=back
=head1 AUTHOR
Copyright (C) 2001 Denis Barbier <barbier@debian.org>
This program 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.
=cut
1;
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