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@ -4,8 +4,108 @@ use strict;
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use warnings; |
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use utf8; |
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use overload |
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'""' => \&to_string, |
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; |
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sub new { |
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return {}; |
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my ($class, %opts) = @_; |
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my $self = { |
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_eol => "\n", |
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_vers => 'ass', |
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_error => undef, |
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_order => [], |
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}; |
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if ($opts{version} and $opts{version} =~ m{^(ssa|ass)$}oi) { |
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$self->{_vers} = lc($opts{version}); |
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} |
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return bless($self, $class); |
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} |
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sub error { |
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my ($self, $text) = @_; |
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if (defined $text) { |
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$self->{_error} = $text; |
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return; |
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} |
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return $self->{_error}; |
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} |
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sub hash_key { |
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my ($self, $name) = @_; |
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$name = lc($name); |
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$name =~ s{[\ \t]}{}go; |
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return $name; |
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} |
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sub get { |
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my ($self, $name) = @_; |
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$name = $self->hash_key($name); |
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if ($name eq 'scripttype') { |
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return ($self->{_vers} eq 'ass') ? 'v4.00+' : 'v4.00' ; |
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} |
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return if not exists $self->{$name}; |
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return $self->{$name}->{value}; |
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} |
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sub set { |
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my ($self, $name, $value) = @_; |
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my $data = { |
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name => $name, |
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value => $value, |
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}; |
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$name = $self->hash_key($name); |
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if ($name eq 'scripttype') { |
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if ($value =~ m{v4\.00$}o) { |
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$self->{_vers} = 'ssa'; |
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} elsif ($value =~ m{v4\.00\+$}o) { |
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$self->{_vers} = 'ass'; |
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} |
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return; |
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} |
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push @{ $self->{_order} }, $name |
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if not exists $self->{$name}; |
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$self->{$name} = $data; |
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return; |
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} |
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sub parse { |
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my ($self, $line) = @_; |
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return unless $line; |
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return 1 if $line =~ m{^\s*;}o; # comment |
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chomp $line; |
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$line =~ s{^\s+}{}o; |
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$line =~ s{\s+$}{}o; |
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my ($name, $value) = split /\s*:\s*/, $line, 2; |
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$self->set($name, $value); |
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return 1; |
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} |
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sub to_string { |
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my ($self) = @_; |
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my ($vers, $out); |
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$vers = ($self->{_vers} eq 'ass') ? 'v4.00+' : 'v4.00' ; |
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$out = "[Script Info]" . $self->{_eol}; |
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$out .= "; generated with Subtitle::SSA" . $self->{_eol}; |
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$out .= "ScriptType: $vers" . $self->{_eol}; |
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foreach my $key (@{ $self->{_order} }) { |
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my $name = $self->{$key}->{name}; |
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my $value = $self->{$key}->{value}; |
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$out .= "$name: $value" . $self->{_eol}; |
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} |
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$out .= $self->{_eol}; |
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return $out; |
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} |
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1; |
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