Doubt regarding early-return.py example about trojan-source HOT 4 CLOSED

Found an example here that says:

Memory:  he said "<RLI>I NEED WATER!<PDI>", and expired.
Display: he said "!RETAW DEEN I", and expired.

But does it work differently in the early-return example?

from trojan-source.

This is a great point -- the RLI character behaves strangely. The example that you reference comes from the de facto source of truth for a correct Unicode implementation, but that's not the behavior that I observe in practice.

Unicode Bidi implementations differ by application & OS, but rendering "I NEED WATER!" in Chromium-based browsers for me yields something that looks like "!I NEED WATER". For comparison, here's the encoded form for anyone reading to observe in their own browser:

⁧I NEED WATER!⁩

Experimentally, it appears to me that (at least in Chromium-based software) RLI affects neutral characters but not strong characters; or, rather, at least affects neutral and strong characters differently.

It's not immediately clear to me whether this behavior is in the Unicode Bidi spec, or whether this is a bug/undefined behavior in specific Bidi implementations.

from trojan-source.

Thanks. I think in the example from the page for the bidi algorithm, they also use upper case characters as a kind of notation to represent a script written from right to left (or something like that, right?).

And do you know how is bidi pronounced? Is it 'bye-dye' or 'bee-dee'?

from trojan-source.

I've heard it pronounced many different ways; I'm not sure that there's a consensus. Although it's a different "Bidirectional" there's a related thread about it here.

from trojan-source.