ABNF-Grammar

 view release on metacpan or  search on metacpan

lib/ABNF/Generator.pm  view on Meta::CPAN

	my $class = ref($self) || $self;

	croak "Cant create instance of abstract class" if $class eq 'ABNF::Generator';

	$self = {
		_cache => {},
		_grammar => $grammar,
		_validator => $validator || ABNF::Validator->new($grammar)
	};

	bless($self, $class);

	$self->_init();

	return $self;
}

method _init() {
	$self->{handlers} = {
		Range => $self->can("_range"),
		String => $self->can("_string"),

lib/ABNF/Grammar.pm  view on Meta::CPAN

@commands consists of main command names for generation and validation.

=cut

method new(Str $fname, @commands) {

	my $class = ref($self) || $self;

	$self = {_commands => { map {$_ => 1} @commands} };

	bless($self, $class);


	open(my $file, $fname)
	or croak "Cant open $fname";

	my $content = join("", <$file>) . "\n";

	close($file)
	or carp "Cant close $fname";	

lib/ABNF/Grammar.pm  view on Meta::CPAN

@commands consists of main command names for generation and validation.

=cut

method fromString(Str $content, @commands) {

	my $class = ref($self) || $self;

	$self = {_commands => { map {$_ => 1} @commands} };

	bless($self, $class);

	$self->_init($content . "\n");

	foreach my $command ( @commands ) {
		croak "Grammar doesn't have command $command" unless exists($self->{_rules}->{$command});
	}

	return $self;
}

lib/ABNF/Validator.pm  view on Meta::CPAN

$grammar isa B<ABNF::Grammar>.

=cut

method new(ABNF::Grammar $grammar) {

	my $class = ref($self) || $self;

	$self = { _grammar => $grammar };

	bless($self, $class);

	$self->_init();

	return $self;
}

method _init() {
	my $commands = $self->{_grammar}->commands();
	$self->{_commandsPattern} = do {
		my $pattern = join(" | ", @$commands);