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package HTML::FormFu::Constraint::Regex;
use Moose;
use MooseX::Attribute::Chained;
extends 'HTML::FormFu::Constraint';
use Regexp::Common;
has common => ( is => 'rw', traits => ['Chained'] );
has regex => ( is => 'rw', traits => ['Chained'] );
sub constrain_value {
my ( $self, $value ) = @_;
return 1 if !defined $value || $value eq '';
my $regex;
if ( defined $self->regex ) {
$regex = $self->regex;
}
elsif ( defined $self->common ) {
my @common
= ref $self->common
? @{ $self->common }
: $self->common;
$regex = shift @common;
$regex = $RE{$regex};
for (@common) {
$regex = $regex->{ ref $_ ? join( $;, %$_ ) : $_ };
}
}
else {
$regex = qr/.*/;
}
my $ok = $value =~ $regex;
return $self->not ? !$ok : $ok;
}
__PACKAGE__->meta->make_immutable;
1;
__END__
=head1 NAME
HTML::FormFu::Constraint::Regex - Regex Constraint
=head1 DESCRIPTION
Regular expression-based constraint.
=head1 METHODS
=head2 regex
Arguments: $regex. In a config file, enclose the regex in a string, like this: C<regex: '^[-_+=!\w\d]*\z'>.
Arguments: $string
=head2 common
Arguments: \@parts
Used to build a L<Regexp::Common> regex.
The following definition is equivalent to
C<< $RE{URI}{HTTP}{-scheme => 'https?'} >>
type: Regex
common:
- URI
- HTTP
- { '-scheme': 'https?' }
=head1 SEE ALSO
Is a sub-class of, and inherits methods from L<HTML::FormFu::Constraint>
L<HTML::FormFu>
=head1 AUTHOR
Carl Franks C<cfranks@cpan.org>
Based on the original source code of L<HTML::Widget::Constraint::Regex>, by
Sebastian Riedel, C<sri@oook.de>.
=head1 LICENSE
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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