Project

bin_utils

0.02
No commit activity in last 3 years
No release in over 3 years
bin_utilsfunny-falcon/bin_utilsHomepageDocumentationSource CodeBug TrackerWiki
utils for extracting binary integers from binary string and packing them back
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Popularity
Downloads
38,151
Stars
36
Forks
4
Watchers
10
 Releases
Current version
0.0.7
Total releases
10
First release
2012-08-06
Latest release
2014-12-24
 Pull Requests
Open Pull Requests
0
Closed Pull Requests
0
Merged Pull Requests
1
Pull Request Acceptance Rate
100%
 Development
Primary Language
Ruby
Average date of last 50 commits
2013-05-27
Reverse Dependencies
5

 Dependencies

Development

rake-compiler
~> 0.9
 Project Readme

BinUtils

It is specialized versions of methods for working with binary data. It were written cause:

  • MRI's #pack and #unpack seems to be slow
  • result of #pack is often appended to a string at the very next step.
  • usually we need to drop unpacked string head

Installation

Add this line to your application's Gemfile:

gem 'bin_utils'

And then execute:

$ bundle

Or install it yourself as:

$ gem install bin_utils

Usage

  require 'bin_utils'
  # using Ruby 1.9.3 syntax for some little-endian and big-endian
  BinUtils.get_int8(str) == str.unpack('C')[0]
  BinUtils.get_sint8(str) == str.unpack('c')[0]
  BinUtils.get_int8(str, i) == str[i,1].unpack('C')[0]
  BinUtils.get_sint8(str, i) == str[i,1].unpack('c')[0]

  BinUtils.get_int16_le(str) == str.unpack('v')[0]
  BinUtils.get_sint16_le(str) == str.unpack('s<')[0]
  BinUtils.get_int16_le(str, i) == str[i,2].unpack('v')[0]
  BinUtils.get_sint16_le(str, i) == str[i,2].unpack('s<')[0]

  BinUtils.get_int32_le(str) == str.unpack('V')[0]
  BinUtils.get_sint32_le(str) == str.unpack('l<')[0]
  BinUtils.get_int32_le(str, i) == str[i,4].unpack('V')[0]
  BinUtils.get_sint32_le(str, i) == str[i,4].unpack('l<')[0]

  BinUtils.get_int64_le(str) == str.unpack('Q<')[0]
  BinUtils.get_sint64_le(str) == str.unpack('q<')[0]
  BinUtils.get_int64_le(str, i) == str[i,8].unpack('Q<')[0]
  BinUtils.get_sint64_le(str, i) == str[i,8].unpack('q<')[0]

  BinUtils.get_int16_be(str) == str.unpack('n')[0]
  BinUtils.get_sint16_be(str) == str.unpack('s>')[0]
  BinUtils.get_int16_be(str, i) == str[i,2].unpack('n')[0]
  BinUtils.get_sint16_be(str, i) == str[i,2].unpack('s>')[0]

  BinUtils.get_int32_be(str) == str.unpack('N')[0]
  BinUtils.get_sint32_be(str) == str.unpack('l>')[0]
  BinUtils.get_int32_be(str, i) == str[i,4].unpack('N')[0]
  BinUtils.get_sint32_be(str, i) == str[i,4].unpack('l>')[0]

  BinUtils.get_int64_be(str) == str.unpack('Q>')[0]
  BinUtils.get_sint64_be(str) == str.unpack('q>')[0]
  BinUtils.get_int64_be(str, i) == str[i,8].unpack('Q>')[0]
  BinUtils.get_sint64_be(str, i) == str[i,8].unpack('q>')[0]

  BinUtils.get_ber(str) == str.unpack('w')
  BinUtils.get_ber(str, i) == str[i..-1].unpack('w')

  BinUtils.slice_int8!(str) == str.slice!(0,1).unpack('C')[0]
  BinUtils.slice_sint8!(str) == str.slice!(0,1).unpack('c')[0]
  BinUtils.slice_int16_le!(str) == str.slice!(0,2).unpack('v')[0]
  BinUtils.slice_sint16_le!(str) == str.slice!(0,2).unpack('s<')[0]
  BinUtils.slice_int32_le!(str) == str.slice!(0,4).unpack('V')[0]
  BinUtils.slice_sint32_le!(str) == str.slice!(0,4).unpack('l<')[0]
  BinUtils.slice_int64_le!(str) == str.slice!(0,8).unpack('Q<')[0]
  BinUtils.slice_sint64_le!(str) == str.slice!(0,8).unpack('q<')[0]
  BinUtils.slice_int16_be!(str) == str.slice!(0,2).unpack('n')[0]
  BinUtils.slice_sint16_be!(str) == str.slice!(0,2).unpack('s>')[0]
  BinUtils.slice_int32_be!(str) == str.slice!(0,4).unpack('N')[0]
  BinUtils.slice_sint32_be!(str) == str.slice!(0,4).unpack('l>')[0]
  BinUtils.slice_int64_be!(str) == str.slice!(0,8).unpack('Q>')[0]
  BinUtils.slice_sint64_be!(str) == str.slice!(0,8).unpack('q>')[0]

  BinUtils.slice_ber!(str) == (v=str.unpack('w'); i=[v].pack('w').bytesize; str.slice!(0,i); v)

  ints = [i1, i2, ..., in]
  # Append functions can accept vararg
  BinUtils.append_int8!(str, *ints) # str << ints.pack('C*')
  BinUtils.append_int16_le!(str, *ints) # str << ints.pack('v*')
  BinUtils.append_int32_le!(str, *ints) # str << ints.pack('V*')
  BinUtils.append_int64_le!(str, *ints) # str << ints.pack('Q<*')
  BinUtils.append_int16_be!(str, *ints) # str << ints.pack('n*')
  BinUtils.append_int32_be!(str, *ints) # str << ints.pack('N*')
  BinUtils.append_int64_be!(str, *ints) # str << ints.pack('Q>*')
  BinUtils.append_ber!(str, *ints) # str << ints.pack('w*')

  # Append functions can accept single array
  BinUtils.append_int8!(str, ints) # str << ints.pack('C*')
  BinUtils.append_int16_le!(str, ints) # str << ints.pack('v*')
  BinUtils.append_int32_le!(str, ints) # str << ints.pack('V*')
  BinUtils.append_int64_le!(str, ints) # str << ints.pack('Q<*')
  BinUtils.append_int16_be!(str, ints) # str << ints.pack('n*')
  BinUtils.append_int32_be!(str, ints) # str << ints.pack('N*')
  BinUtils.append_int64_be!(str, ints) # str << ints.pack('Q>*')
  BinUtils.append_ber!(str, ints) # str << ints.pack('w*')


  # Other append functions also accept both vararg or array (but not vararg with arrays)
  # For simplicity, only vararg is shown in this example
  BinUtils.append_bersize_int8!(str, *ints) # str << [n, *ints].pack('wC*')
  BinUtils.append_bersize_int16_le!(str, *ints) # str << [n*2, *ints].pack('wv*')
  BinUtils.append_bersize_int32_le!(str, *ints) # str << [n*4, *ints].pack('wV*')
  BinUtils.append_bersize_int64_le!(str, *ints) # str << [n*8, *ints].pack('wQ<*')
  BinUtils.append_bersize_int16_be!(str, *ints) # str << [n*2, *ints].pack('wn*')
  BinUtils.append_bersize_int32_be!(str, *ints) # str << [n*4, *ints].pack('wN*')
  BinUtils.append_bersize_int64_be!(str, *ints) # str << [n*8, *ints].pack('wQ>*')
  BinUtils.append_bersize_ber!(str, *ints) # v = [*ints].pack('w*'); s << [v.bytesize, *ints].pack('ww*')

  BinUtils.append_int32size_int8_le!(str, *ints) # str << [n, *ints].pack('VC*')
  BinUtils.append_int32size_int16_le!(str, *ints) # str << [n*2, *ints].pack('Vv*')
  BinUtils.append_int32size_int32_le!(str, *ints) # str << [n*4, *ints].pack('VV*')
  BinUtils.append_int32size_int64_le!(str, *ints) # str << [n*8, *ints].pack('VQ<*')
  BinUtils.append_int32size_ber_le!(str, *ints) # v = [*ints].pack('w*'); s << [v.bytesize, *ints].pack('Vw*')

  BinUtils.append_int32size_int8_be!(str, *ints) # str << [n, *ints].pack('NC*')
  BinUtils.append_int32size_int16_be!(str, *ints) # str << [n*2, *ints].pack('Nn*')
  BinUtils.append_int32size_int32_be!(str, *ints) # str << [n*4, *ints].pack('NN*')
  BinUtils.append_int32size_int64_be!(str, *ints) # str << [n*8, *ints].pack('NQ>*')
  BinUtils.append_int32size_ber_be!(str, *ints) # v = [*ints].pack('w*'); str << [v.bytesize, *ints].pack('Nw*')

  BinUtils.append_int8_ber!(str, int, *ints) # str << [int, *ints].pack('Cw*')
  BinUtils.append_ber_int8!(str, int, *ints) # str << [int, *ints].pack('wC*')
  BinUtils.append_ber_int16_le!(str, int, *ints) # str << [int, *ints].pack('wv*')
  BinUtils.append_ber_int32_le!(str, int, *ints) # str << [int, *ints].pack('wV*')
  BinUtils.append_ber_int16_be!(str, int, *ints) # str << [int, *ints].pack('wn*')
  BinUtils.append_ber_int32_be!(str, int, *ints) # str << [int, *ints].pack('wN*')
  BinUtils.append_int16_ber_le!(str, int, *ints) # str << [int, *ints].pack('vw*')
  BinUtils.append_int32_ber_le!(str, int, *ints) # str << [int, *ints].pack('Vw*')
  BinUtils.append_int16_ber_be!(str, int, *ints) # str << [int, *ints].pack('nw*')
  BinUtils.append_int32_ber_be!(str, int, *ints) # str << [int, *ints].pack('Nw*')
  BinUtils.append_int8_int16_le!(str, int, *ints) # str << [int, *ints].pack('Cv*')
  BinUtils.append_int8_int32_le!(str, int, *ints) # str << [int, *ints].pack('CV*')
  BinUtils.append_int8_int16_be!(str, int, *ints) # str << [int, *ints].pack('Cn*')
  BinUtils.append_int8_int32_be!(str, int, *ints) # str << [int, *ints].pack('CN*')
  BinUtils.append_int16_int8_le!(str, int, *ints)  # str << [int, *ints].pack('vC*')
  BinUtils.append_int16_int32_le!(str, int, *ints) # str << [int, *ints].pack('vV*')
  BinUtils.append_int16_int8_be!(str, int, *ints)  # str << [int, *ints].pack('nC*')
  BinUtils.append_int16_int32_be!(str, int, *ints) # str << [int, *ints].pack('nN*')
  BinUtils.append_int32_int8_le!(str, int, *ints)  # str << [int, *ints].pack('VC*')
  BinUtils.append_int32_int16_le!(str, int, *ints) # str << [int, *ints].pack('Vv*')
  BinUtils.append_int32_int8_be!(str, int, *ints)  # str << [int, *ints].pack('NC*')
  BinUtils.append_int32_int16_be!(str, int, *ints) # str << [int, *ints].pack('Nn*')

  # String append functions do not accepts varargs nor array
  # Only single string is accepted
  BinUtils.append_string!(str, add) # str << [add].pack('a*')
  BinUtils.append_bersize_string!(str, add) # str << [add.bytesize, add].pack('wa*')
  BinUtils.append_int32size_string_le!(str, add) # str << [add.bytesize, add].pack('Va*')
  BinUtils.append_int32size_string_be!(str, add) # str << [add.bytesize, add].pack('Na*')

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request