Class: I18n::Processes::Command::OptionParsers::Enum::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/i18n/processes/command/option_parsers/enum.rb

Constant Summary collapse

DEFAULT_ERROR = 
proc do |invalid, valid|
  "#{invalid} is not one of: #{valid * ', '}."
end

Instance Method Summary collapse

Constructor Details

#initialize(valid, error_message = DEFAULT_ERROR) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/i18n/processes/command/option_parsers/enum.rb', line 12

def initialize(valid, error_message = DEFAULT_ERROR)
  @valid         = valid.map(&:to_s)
  @error_message = error_message
end

Instance Method Details

#call(value) ⇒ Object 



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# File 'lib/i18n/processes/command/option_parsers/enum.rb', line 17

def call(value, *)
  return @valid.first unless value.present?
  if @valid.include?(value)
    value
  else
    fail CommandError, @error_message.call(value, @valid)
  end
end