Re: [w3c/editing] Should we expose physical direction in Deletion commands? (for the case of RTL) (#133)

Trying this out, it doesn't seem straightforward how to handle this in JavaScript.

```
> let a = "<b>\u{65}\u{301}</b>"
<b>é</b>
> a.length
8
```
What if the caret is here and the user asks for forward delete:
```
<b>|\u{65}\u{301}</b>
```

Or what if the caret is here, and the user asks for backward delete:
```
<b>\u{65}\u{301}|</b>
```

Without some knowledge of what those unicode characters correspond to, it seems difficult for the JavaScript to delete the right part of the DOM, right?

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