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class JsRegexValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
return true if value.blank?
parsed_regex = JsRegex.new(Regexp.new(value, Regexp::IGNORECASE))
if parsed_regex.source.empty?
record.errors.add(attribute, "Regex Pattern #{value} can not be expressed in Javascript")
else
parsed_regex.warnings.each { |warning| record.errors.add(attribute, warning) }
end
rescue RegexpError => regex_error
record.errors.add(attribute, regex_error.to_s)
end
end
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