Module: Ant::DataUtilities

Included in:
Channel::EventCallbacks, ResponseCallbacks
Defined in:
lib/ant/mixins.rb,
ext/ant_ext/channel.c

Constant Summary collapse

VISIBLES =

The range of ASCII codes to show literally in a hexdump

32..126

Class Method Summary collapse

Class Method Details

.hexdump(data, line_size = 8) ⇒ Object

Return the given data in hexdump format.



20
21
22
23
24
25
26
27
28
29
 
# File 'lib/ant/mixins.rb', line 20

def hexdump( data, line_size=8 )
  hex_width = line_size * 5
  return data.bytes.each_slice( line_size ).with_index.map do |chunk, line|
    bytes = chunk.map do |b|
      "0x%02x" % [ b ]
    end.join( ' ' )
    stripped_bytes = chunk.map {|c| VISIBLES.include?(c) ? c.chr : '.'}.join
    "%04x: %*s | %*s |" % [ line, -hex_width, bytes, -line_size, stripped_bytes ]
  end.join( "\n" )
end