erlang-bit-pattern-matching.erl

% Basic bit-wise pattern matching
1> <<Foo,Bar,Baz>> = <<1,2,3>>.

% Some more advanced pattern matching
2> <<R:8,G:8,B:8>> = <<16#BADA55:24>>.
<<"ºÚU">>

% Using the built in bindings command
3> b().
B = 85
Bar = 2
Baz = 3
Foo = 1
G = 218
R = 186
ok

% Pattern matching + list comprehensions on bit data, producing tuples
5> [ {R,G,B} || <<R:8, G:8, B:8>> <= <<1,2,3,4,5,6,7,8,9>> ].
[{1,2,3},{4,5,6},{7,8,9}]