Class: Aargvark::Argument

Inherits:
Object
  • Object
show all
Defined in:
lib/aargvark.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(arg_array) ⇒ Argument

Returns a new instance of Argument.



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# File 'lib/aargvark.rb', line 156

def initialize (arg_array)
  @sub_args = []
  @subarg_range = [0,0]

  if arg_array.class != Array
    if arg_array.class == String
      if arg_array.is_arg?
        @letter = arg_array
      end 
    else
      raise ArgumentError, "\"#{arg_array}\" is not a valid argument.  Arguments and the details" +
                           " thereof must be entered as an Array in the format:" +
                           "[\"-n\", \"--argument-alias\", [true/false, :string/:integer/:float], etc...]"
    end
  else
    if arg_array[0].is_arg?
      @letter = arg_array[0]
    elsif arg_array[0].is_noarg?
      @noarg = true
    else
      raise ArgumentError, "The first item in each Argument array must be either a lowercase letter preceded by" +
                         " a hyphen or the symbol :noarg.  Please go back and make sure that your argument arrays conform to" +
                         " these standards."
    end
  end

  if arg_array.size > 1
    
    #If the second item in an argument array is an alias, set the alias for the
    #argument as that value.
    if arg_array[1].is_alias?
      @alias = arg_array[1]
    end

    if arg_array[1] == :required || arg_array[2] == :required
      @required = true
    else
      @required = false
    end
    
    first_subarg = 1
    if @alias
      first_subarg += 1
    end

    if @required
      first_subarg += 1
    end
    
    first_subarg.upto(arg_array.size - 1) do |x|
      if arg_array[x].is_subarg?
        @sub_args << arg_array[x]
      end
    end
  end

  @sub_args.each do |subarg|
    @subarg_range[0] += 1 if subarg.to_s == "true"
    @subarg_range[1] += 1
  end

end

Instance Attribute Details

#alias ⇒ Object

Returns the value of attribute alias.



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# File 'lib/aargvark.rb', line 154

def alias
  @alias
end

#letter ⇒ Object

Returns the value of attribute letter.



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# File 'lib/aargvark.rb', line 154

def letter
  @letter
end

#noarg ⇒ Object

Returns the value of attribute noarg.



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# File 'lib/aargvark.rb', line 154

def noarg
  @noarg
end

#required ⇒ Object

Returns the value of attribute required.



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# File 'lib/aargvark.rb', line 154

def required
  @required
end

#sub_args ⇒ Object

Returns the value of attribute sub_args.



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# File 'lib/aargvark.rb', line 154

def sub_args
  @sub_args
end

#subarg_range ⇒ Object

Returns the value of attribute subarg_range.



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# File 'lib/aargvark.rb', line 154

def subarg_range
  @subarg_range
end