Module: Humanized::HasParser

Defined in:
lib/more/humanized/has_parser.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/more/humanized/has_parser.rb', line 20

def self.included(base)

  base.class_eval do
  
    component :parser do |value, old|
    
      if old.kind_of? Hash
        result = old.dup
      else
        result = {}
      end

      if value.kind_of? Hash
        result.update value
      elsif value.kind_of? Array
        value.each do |parser|
          if parser.respond_to? :provides
            parser.provides.each do |provided|
              result[provided] = parser
            end
          else
            raise ArgumentError, "A parser should respond to :provides, got #{parser.inspect}."
          end
        end
      end
      result
      
    end
    
  end

end

Instance Method Details

#parse(type, string, options = {}) ⇒ Object 



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# File 'lib/more/humanized/has_parser.rb', line 53

def parse(type, string, options={})

  options = options.dup
  options[:humanizer] = self
  options[:type] = type
  
  p = parser[type]
  
  if p.nil? 
    result = Parser::ParserMissing.new(string, options)
  else
    result = p.parse(string, options)
  end
  
  raise "Expected result to be a kind of Humanized::Parser::Result but #{result.inspect} given." unless result.kind_of? Parser::Result
  
  if block_given? and result.success?
    yield result.value
  end
  
  return result
  
end