Module: Baikal

Defined in:
lib/baikal.rb,
lib/baikal/tweak.rb,
lib/baikal/cursor.rb,
lib/baikal/hexdump.rb

Overview

Baikal is a tool for generating, parsing and modifying binary objects.

Defined Under Namespace

Modules: Hexdump Classes: Cursor, Pool

Constant Summary collapse

VERSION = 
'1.1.1'

Class Method Summary collapse

Class Method Details

.hexdump(data_source, port = $stdout, format = Hexdump::DEFAULT_HEXDUMP_FORMAT) ⇒ Object

Hexdumps bytes from data_source into the given port (by default, $stdout) using the given format (by default, DEFAULT_HEXDUMP_FORMAT). Uses the length method of data_source to determine byte count and the [] method with integer range arguments to extract row-sized slices. data_source being a String instance behaves as expected.



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# File 'lib/baikal/hexdump.rb', line 9

def Baikal::hexdump data_source, port = $stdout, format = Hexdump::DEFAULT_HEXDUMP_FORMAT
  row = Hexdump::Row.new
  row.expected_size = format.bytes_per_row
  # iterate over rows
  row.offset = 0
  block_row_counter = 0
  while row.offset < data_source.bytesize do
    if format.rows_per_block != 0 then
      block_row_counter += 1
      if block_row_counter == format.rows_per_block then
        port.puts # block separator
        block_row_counter = 0
      end
    end
    row.data = data_source.unpack "@#{row.offset} C#{format.bytes_per_row}"
    format.format_row row, port
    row.offset += format.bytes_per_row
  end
  return
end