---
name: "Validation::Class::Directive::Pattern"
section: "3pm"
platform: "linux"
package: "libvalidation-class-perl"
version: "7.900059-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Validation::Class::Directive::Pattern"
---

# Validation::Class::Directive::Pattern(3pm)

Pattern Directive for Validation Class Field Definitions

## NAME

Validation::Class::Directive::Pattern - Pattern Directive for Validation Class Field Definitions

## VERSION

version 7.900059

## SYNOPSIS

```
    use Validation::Class::Simple;
    my $rules = Validation::Class::Simple->new(
        fields => {
            company_email => {
                pattern => qr/\@company\.com$/
            }
        }
    );
    # set parameters to be validated
    $rules->params->add($parameters);
    # validate
    unless ($rules->validate) {
        # handle the failures
    }
```

## DESCRIPTION

Validation::Class::Directive::Pattern is a core validation class field directive that validates simple patterns and complex regular expressions.

- •

  alternative argument: an-array-of-something

  This directive can be passed a regexp object or a simple pattern. A simple pattern is a string where the \`#\` character matches digits and the \`X\` character matches alphabetic characters.

  ```
      fields => {
          task_date => {
              pattern => '##-##-####'
          },
          task_time => {
              pattern => '##:##:##'
          }
      }
  ```

## AUTHOR

Al Newkirk \<anewkirk@ana.io\>

## COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Al Newkirk.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.