Module: Melisa::BaseConfigFlags

Included in:
Trie
Defined in:
lib/melisa/base_config_flags.rb

Instance Method Summary collapse

Instance Method Details

#binary_flag(bool) ⇒ Object 



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# File 'lib/melisa/base_config_flags.rb', line 35

def binary_flag(bool)
  case bool
  when true  then Marisa::BINARY_TAIL
  when false then Marisa::TEXT_TAIL
  else
    raise ArgumentError, "binary_flag must be true or false (got #{bool.inspect})"
  end
end

#config_flags(opts = {}) ⇒ Object 



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# File 'lib/melisa/base_config_flags.rb', line 20

def config_flags(opts={})
  opts = {
    :binary     => false,
    :num_tries  => :default,
    :cache_size => :default,
    :order      => :default
  }.merge(opts)

  return \
    binary_flag(opts[:binary]) |
    valid_num_tries(opts[:num_tries]) |
    lookup_cache_size(opts[:cache_size]) |
    valid_node_order(opts[:order])
end

#lookup_cache_size(cache_size) ⇒ Object 



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# File 'lib/melisa/base_config_flags.rb', line 56

def lookup_cache_size(cache_size)
  if CacheSizes.keys.include?(cache_size)
    return CacheSizes[cache_size]
  else
    sizes = CacheSizes.keys
    msg = "cache_size (#{cache_size}) must be one of: #{sizes.inspect}"
    raise ConfigError, msg
  end
end

#valid_node_order(order) ⇒ Object 



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# File 'lib/melisa/base_config_flags.rb', line 66

def valid_node_order(order)
  if NodeOrders.keys.include?(order)
    return NodeOrders[order]
  else
    valid_options = NodeOrders.keys
    msg = "node_order (#{order}) must be one of: #{valid_options.inspect}"
    raise ConfigError, msg
  end
end

#valid_num_tries(num_tries) ⇒ Object 



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# File 'lib/melisa/base_config_flags.rb', line 44

def valid_num_tries(num_tries)
  num_tries = Marisa::DEFAULT_NUM_TRIES if num_tries == :default
  min = Marisa::MIN_NUM_TRIES
  max = Marisa::MAX_NUM_TRIES
  if (min..max).include? num_tries
    return num_tries
  else
    msg = "num_tries (#{num_tries}) must be between #{min} and #{max}"
    raise ConfigError, msg
  end
end