I'm quite impressed with Erlang's Bin datatype and binary pattern matching.
I've tried to replicate some of the coolness in Clojure..
So, what can you do with it?
Create a bin:
user> (<< 1 17 42)
(1 17 42)
user> (<< [0xf0f0 16] 1 17)
(240 240 1 17)
user> (<< "abc")
(97 98 99)
More interesting is probably constructing a bin from a set of bound variables:
user> (let [A 1
B 17
C 42
bin (<< A B [C 16])] bin)
(1 17 0 42)
A bin can also be used for matching:
user> (bin-let [[D 16 E 8 F 8] (1 17 00 42)]
[D E F])
[273 0 42]
That's pretty much the gist of it. Please feel free to look at the code at
[email protected]:AndreasKostler/Binj.git
I've only put it up this morning so please don't expect polished code or
comments ;)
I'm VERY interested in your feedback...about functionality, style, idiomatic
usage of the language, etc.
Be as anal as possible, I'm still learning.
Cheers
Andreas
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