Convert String to BinaryString

ruby-talk
1

Hi guys,

Once I already asked how to create a hex string in “little-endian” order
in Ruby. In this case the most appropriate way is to use function
sprintf() or "%". But
those function return aString but I need aBinarystring. So, my question
is how to convert aString to aBinarystring?

Thanks in advance.

···

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2

% irb
irb(main):001:0> 12.to_s(2)
=> "1100"
irb(main):002:0> "12".to_i.to_s(2)
=> "1100"

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On Jun 21, 2006, at 2:13 PM, Michael stepanov wrote:

Hi guys,

Once I already asked how to create a hex string in “little-endian” order
in Ruby. In this case the most appropriate way is to use function
sprintf() or "%". But
those function return aString but I need aBinarystring. So, my question
is how to convert aString to aBinarystring?

Thanks in advance.

--
Posted via http://www.ruby-forum.com/\.

3

Logan Capaldo wrote:

···

On Jun 21, 2006, at 2:13 PM, Michael stepanov wrote:

Thanks in advance.

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% irb
irb(main):001:0> 12.to_s(2)
=> "1100"
irb(main):002:0> "12".to_i.to_s(2)
=> "1100"

I found how to send what I need with pack:

s = [1,3,144,3,50].pack("NnNNe")
print s.unpack("H*")[0] => 000000010003000000720000000342480000

pack is cool, but Template characters I found here -
http://www.rubycentral.com/ref/ref_c_array.html#include_qm

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4

Michael stepanov wrote:

pack is cool, but Template characters I found here -
http://www.rubycentral.com/ref/ref_c_array.html#include_qm

You can also use

ri pack
ri unpack

for a quick reference.

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      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407

5

Joel VanderWerf wrote:

Michael stepanov wrote:

pack is cool, but Template characters I found here -
http://www.rubycentral.com/ref/ref_c_array.html#include_qm

You can also use

ri pack
ri unpack

for a quick reference.

Thanks a lot! It's very useful!

···

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