Module: RCoLi::CommandContainer

Included in:
Command, Program
Defined in:
lib/rcoli/model.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#parent ⇒ Object

Returns the value of attribute parent.



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# File 'lib/rcoli/model.rb', line 14

def parent
  @parent
end

Instance Method Details

#action(&block) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 17

def action(&block)
  @action = block
end

#command(nam, &block) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 25

def command(nam, &block)
  obj = Command.new(nam)
  obj.parent = self
  block.call(obj)  
  commands << obj
end

#commands ⇒ Object 



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# File 'lib/rcoli/model.rb', line 32

def commands
  (@commands ||= [])
end

#find_command(name) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 90

def find_command(name)
  result = commands.find{|command| command.value_of_name.to_s.eql? name}
  return result
end

#flag(names, &block) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 46

def flag(names, &block)
  obj = Flag.new(names)
  block.call(obj) if block_given? 
  options << obj
end

#get_action ⇒ Object 



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# File 'lib/rcoli/model.rb', line 21

def get_action
  @action
end

#options ⇒ Object 



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# File 'lib/rcoli/model.rb', line 36

def options
  (@options ||= [])
end

#parse_args(args, result) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 52

def parse_args(args, result)
  return if args.empty?
  arg = args.delete_at(0)
  if (is_option? arg)
    if (option = find_option(arg))
      if (option.is_a? Flag)
        raise InvalidCommand, "Flag #{arg} is missing a value" if args.empty?
        value = args.delete_at(0)
      else
        value = true
      end
      target = self.parent ? :options : :global_options
      option.keys.each{|key| result.send(target)[key] = value}
    else
      raise InvalidCommand, "'#{arg}' is not a valid option"
    end
  else
    if (cmd = find_command(arg))
      result.command = cmd
      cmd.put_default_values(result)
      cmd.parse_args(args, result)
      cmd.validate_options(result, :options)
    elsif (commands.empty?)
      result.arguments << arg
    else
      raise InvalidCommand, "'#{arg}' is not a valid #{@name} command"
    end
  end
  parse_args(args, result)
end

#put_default_values(result) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 83

def put_default_values(result)
  options.find_all{|option| option.respond_to? :value_of_default_value and option.value_of_default_value}.each do |option|
    target = self.parent ? :options : :global_options
    option.keys.each{|key| result.send(target)[key] = option.value_of_default_value}
  end
end

#switch(names, &block) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 40

def switch(names, &block)
  obj = Switch.new(names)
  block.call(obj) if block_given?  
  options << obj
end

#validate_options(result, target) ⇒ Object 



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# File 'lib/rcoli/model.rb', line 95

def validate_options(result, target)
  if (result.command.nil? or result.command.value_of_force == true)
    return
  else
    self.options.find_all{|o| o.is_a? Flag and o.value_of_required}.each do |o|
      raise InvalidCommand, "Required option '#{o.to_s}' is missing" unless o.keys.find{|key| result.send(target)[key]}
    end
  end
end