Class: Hexdump::Numeric::Hexadecimal Private

Inherits:
FormatString show all
Defined in:
lib/hexdump/numeric/hexadecimal.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Since:

  • 1.0.0

Constant Summary collapse

INT_SIZE_TO_WIDTH =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

Since:

  • 1.0.0

{
  1 => 2, # 0xff.to_s(16).length
  2 => 4, # 0xffff.to_s(16).length
  4 => 8, # 0xffffffff.to_s(16).length
  8 => 16 # 0xffffffffffffffff.to_s(16).length
}
FLOAT_WIDTH =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future.

Since:

  • 1.0.0

20

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from FormatString

#%, #to_s

Constructor Details

#initialize(type) ⇒ Hexadecimal

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Initializes the hexadecimal format.

Parameters:

Since:

  • 1.0.0



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# File 'lib/hexdump/numeric/hexadecimal.rb', line 29

def initialize(type)
  case type
  when Type::Float
    if RUBY_ENGINE == 'jruby'
      # XXX: https://github.com/jruby/jruby/issues/5122
      begin
        "%a" % 1.0
      rescue ArgumentError
        raise(NotImplementedError,"jruby #{RUBY_ENGINE_VERSION} does not support the \"%a\" format string")
      end
    end

    # NOTE: jruby does not currently support the %a format string
    @width = FLOAT_WIDTH
    super("% #{@width}a"); @width += 1
  else
    @width = INT_SIZE_TO_WIDTH.fetch(type.size) do
      raise(NotImplementedError,"type #{type} with unsupported size #{type.size}")
    end

    if type.signed?
      super("% .#{@width}x"); @width += 1
    else
      super("%.#{@width}x")
    end
  end
end

Instance Attribute Details

#width ⇒ Integer (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Integer)

Since:

  • 1.0.0



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# File 'lib/hexdump/numeric/hexadecimal.rb', line 22

def width
  @width
end