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lib/Alvis/Wikipedia/Variables.pm  view on Meta::CPAN

    }

    return $self;
}

sub _init
{
    my $self=shift;

    if (defined(@_))
    {
        my %args=@_;
        @$self{ keys %args }=values(%args);
    }
}

sub add_template
{
    my $self=shift;
    my $name=shift;
    my $def=shift;

    if (!$self->{templates}->add($name,$def))
    {
	$self->_set_err_state($ERR_TEMPL_ADD,
			      "Name:\"$name\", Definition:\"$def\".");
	return 0;
    }

    return 1;
}

sub dump_templates
{
    my $self=shift;
    my $f=shift;
    
    if (!$self->{templates}->dump($f))
    {
	$self->_set_err_state($ERR_TEMPL_DUMP,$self->{templates}->errmsg());
	return 0;
    }

    return 1;
}

sub load_templates
{
    my $self=shift;
    my $f=shift;
    
    if (!$self->{templates}->load($f))
    {
	$self->_set_err_state($ERR_TEMPL_LOAD,$self->{templates}->errmsg());
	return 0;
    }

    return 1;
}

sub expand
{
    my $self=shift;
    my $namespace=shift;
    my $title=shift;
    my $text=shift;
    my $expand_templates_for_real=shift; # do we expand the templates fully?

    #
    # Problems: <math>,<nowiki>...safeguard them
    #
    my $sep_text=$self->{parser}->separate_markup($text);
    if (!defined($sep_text))
    {
	$self->_set_err_state($ERR_SEP,"Text:\"$text\"");
	return "";
    }
    
    my $exp_text="";

    for my $s (@$sep_text)
    {
	my ($type,$t)=@$s;

	if ($type eq $Alvis::Wikipedia::WikitextParser::MARKUP)
	{
#	    warn "MARKUP TO EXPAND:$t\n";

            my $exp_t=$self->{templates}->expand($namespace,$title,$t,
						 $expand_templates_for_real);
            if (!defined($exp_t))
	    {
		$self->_set_err_state($ERR_EXP,"Text:\"$t\"");
		return undef;
	    }
            else
	    {
		$exp_text.=$exp_t;
	    }
	}
	else
	{
	    $exp_text.=$t;
	}
    }
    
    return $exp_text;
}

1;