[erlang-questions] Erlang external binary term format
Mon Oct 6 12:56:58 CEST 2008
You find the documentation of the Erlang external term format here:
(It is chapter 8 of the ERTS Users Guide)
/Kenneth Erlang/OTP tema, Ericsson
On Mon, Oct 6, 2008 at 3:29 AM, deepblue_other <> wrote:
> for example
> one day I was looking at the term_to_binary() output of
> and it was:
> so with a little experimentation with other tuples I got these rules so far:
> 131,104 - this means that its a tuple
> 3 - this means that it has 3 terms
> 100 and 107 - type code - in this case 100 stands for atoms, and 107 stands
> for strings
> 0 - is the separator between the "type code"(name I gave it
> just now ;) ) and the actual ASCII sequence
> 8 and 3(again) and 6 - these indicate the length of the binary sequence
> (number of ASCII characters in this case
> binaries - 100(type code),0,8(byte length),98,105,110,97,114,105,101,115
> "are" - 107(type code),0,3(byte length),97,114,101
> useful - 100(type code),0,6(byte length),117,115,101,102,117,108
> this just explains a limited set, doesnt go into lists...
> I could be wrong, but the rules seem to match up other examples as well
> deepblue_other wrote:
>> term_to_binary() outputs a binary.
>> what is the format of that binary? I would like to create a
>> "unpacker/packer" for that format in ActionScript3, and avoid the use of
>> XML (which Im using now for Flash-to-Erlang) communication altogether. it
>> would be faster, less code, and much more efficient from the bandwidth
>> point of view.
>> is there a document someplace that gives the byte layout maybe?
>> thank you
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