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We have the `# frozen_string_literal: true` comment on all our
files. This means all string literals are frozen. There is no need
to call #freeze on any literals.
For files with `# frozen_string_literal: true`
```
puts %w{a b}[0].frozen?
=> true
puts "hi".frozen?
=> true
puts "a #{1} b".frozen?
=> true
puts ("a " + "b").frozen?
=> false
puts (-("a " + "b")).frozen?
=> true
```
For more details see: https://samsaffron.com/archive/2018/02/16/reducing-string-duplication-in-ruby
28 lines
630 B
Ruby
28 lines
630 B
Ruby
# frozen_string_literal: true
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class RegexSettingValidator
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LOREM = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam eget sem non elit tincidunt rhoncus.'
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def initialize(opts = {})
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@opts = opts
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end
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def valid_value?(val)
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!val.present? || valid_regex?(val)
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end
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# Check that string is a valid regex, and that it doesn't match most of the lorem string.
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def valid_regex?(val)
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r = Regexp.new(val)
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matches = r.match(LOREM)
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matches.nil? || matches[0].length < (LOREM.length - 10)
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rescue
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false
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end
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def error_message
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I18n.t('site_settings.errors.invalid_regex')
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end
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end
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