Module: Filters

Defined in:
lib/LIVR/Rules/Filters.rb

Class Method Summary collapse

Class Method Details

.leave_only(args) ⇒ Object 



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# File 'lib/LIVR/Rules/Filters.rb', line 35

def self.leave_only(args)
  chars = args.shift
  lambda do |value, unuse, output|
    return if value.nil? or value.eql?('') or not value.kind_of? String
    output.push(value.gsub(/[^#{Regexp.escape(chars)}]/, ''))
    return nil
  end
end

.remove(args) ⇒ Object 



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# File 'lib/LIVR/Rules/Filters.rb', line 26

def self.remove(args)
  chars = args.shift
  lambda do |value, unuse, output|
    return if value.nil? or value.eql?('') or not value.kind_of? String
    output.push(value.gsub(/[#{Regexp.escape(chars)}]/, ''))
    return nil
  end
end

.to_lc(args) ⇒ Object 



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# File 'lib/LIVR/Rules/Filters.rb', line 10

def self.to_lc(args)
  lambda do |value, unuse, output|
    return if value.nil? or value.eql?('') or not value.kind_of? String
    output.push(value.downcase!)
    return nil
  end
end

.to_uc(args) ⇒ Object 



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# File 'lib/LIVR/Rules/Filters.rb', line 18

def self.to_uc(args)
  lambda do |value, unuse, output|
    return if value.nil? or value.eql?('') or not value.kind_of? String
    output.push(value.upcase!)
    return nil
  end
end

.trim(args) ⇒ Object 



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# File 'lib/LIVR/Rules/Filters.rb', line 2

def self.trim(args)
  lambda do |value, unuse, output|
    return if value.nil? or value.eql?('') or not value.kind_of? String
    output.push(value.strip! || value)
    return nil
  end
end