Ruby base64 encoding/decoding

ruby-talk
1

Fellow Ruby users,

I’m looking for a Ruby module that handles base64 encoding/decoding. RAA
doesn’t seem to carry one. Perhaps it doesn’t exist and someone with
some spare time could port the PERL version. :slight_smile: In my opinion this is
a fundamental module the Ruby community is missing at the moment.

Thanks,

Emiel

···

–
E F van de Laar
Beheers Commissaris dispuut Interlink
+31648183479
www.il.fontys.nl/~emiel

2

See String#unpack and Array#pack.

s = [binaryString].pack(“m”) # encodes binaryString as base64
s.unpack(“m”) # decodes s

Regards,

Michael

···

On Mon, 2002-12-09 at 21:22, Emiel van de Laar wrote:

Fellow Ruby users,

I’m looking for a Ruby module that handles base64 encoding/decoding. RAA
doesn’t seem to carry one. Perhaps it doesn’t exist and someone with
some spare time could port the PERL version. :slight_smile: In my opinion this is
a fundamental module the Ruby community is missing at the moment.

3

Wow it comes standard with Ruby. Nice. Thanks for pointing me in the
right direction. :wink:

Emiel

···

On Mon, 2002-12-09 at 21:22, Emiel van de Laar wrote:

Fellow Ruby users,

I’m looking for a Ruby module that handles base64 encoding/decoding. RAA
doesn’t seem to carry one. Perhaps it doesn’t exist and someone with
some spare time could port the PERL version. :slight_smile: In my opinion this is
a fundamental module the Ruby community is missing at the moment.

See String#unpack and Array#pack.

s = [binaryString].pack(“m”) # encodes binaryString as base64
s.unpack(“m”) # decodes s

–
E F van de Laar
Beheers Commissaris dispuut Interlink
+31648183479
www.il.fontys.nl/~emiel

4

Emiel van de Laar wrote:

Fellow Ruby users,

I’m looking for a Ruby module that handles base64 encoding/decoding. RAA
doesn’t seem to carry one. Perhaps it doesn’t exist and someone with
some spare time could port the PERL version. :slight_smile: In my opinion this is
a fundamental module the Ruby community is missing at the moment.

See String#unpack and Array#pack.

s = [binaryString].pack(“m”) # encodes binaryString as base64
s.unpack(“m”) # decodes s

Wow it comes standard with Ruby. Nice. Thanks for pointing me in the
right direction. :wink:

Emiel

E F van de Laar
Beheers Commissaris dispuut Interlink
+31648183479
www.il.fontys.nl/~emiel

There is a base64 module, btw, that comes as part of the standard distro, so
you can do: require “base64”.

4 methods available:
decode
decode64
encode
encode64

The full code is below.

These methods should be wrapped in their own module, IMHO, to avoid name
collision.

Regards,

Dan

base64.rb from 1.6.7

require “kconv”

def decode64(str)
str.unpack(“m”)[0]
end

def decode_b(str)
str.gsub!(/=?ISO-2022-JP?B?([!->@-~]+)?=/i) {
decode64($1)
}
str = Kconv::toeuc(str)
str.gsub!(/=?SHIFT_JIS?B?([!->@-~]+)?=/i) {
decode64($1)
}
str = Kconv::toeuc(str)
str.gsub!(/\n/, ’ ')
str.gsub!(/\0/, ‘’)
str
end

def encode64(bin)
[bin].pack(“m”)
end

def b64encode(bin, len = 60)
encode64(bin).scan(/.{1,#{len}}/o) do
print $&, “\n”
end
end

···

On Mon, 2002-12-09 at 21:22, Emiel van de Laar wrote: