bbcode v0.1

[bbcode]
[title="Hello World"]
[author="Anonymous"]

[main]
  [let="a"]5[/let]
  [while]a>0[do]
  [let="a"]a-1[/let]
  Hello, World!
  [val="a"]
  [/do]
  [/while]
  [call="test"]
[/main]

[test]
hihihi world!
[/test]

[/bbcode]

suggest and improve.

>>40
I think that mixing executable BBCode seamlessly with normal world4ch posts in a non-asshatterish way is not possible. We need a top-level tag [prog] that separates executable segments from the rest of the post. The body of a [prog] tag would function like >>28 suggested. In the final post, [prog] segments would then be replaced with the results of evaluation.