Re: Walk and deep copy in Lua filters

[Bastien DUMONT <bastien.dumont-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org>]

OK, thanks! I will submit a pull request tomorrow.

For BPJ: `clone()` returns a deep copy when called on objects, so it could be used in the example I provided. However, they return a shallow copy when called on Lists, which is my real use case. As you can see, the following chunk throws an error:

```
local orig = pandoc.Emph({ pandoc.Str('one'), pandoc.Space(), pandoc.Str('two') }).content
local copy = orig:clone()
copy[1].text = 'first'
assert(orig[1].text == 'one')
```

(In Lua, almost all methods in `table` modify their first argument and return a pointer to it.)

Le Sunday 12 June 2022 à 08:41:06PM, Albert Krewinkel a écrit :
> 
> Bastien DUMONT <bastien.dumont-VwIFZPTo/vqsTnJN9+BGXg@public.gmane.org> writes:
> 
> > I just discovered by chance that the method walk returns a deep copy
> > of the passed object, leaving the original object untouched. [...]
> >
> > [...] Nevertheless, since it is not really documented, can it be
> > considered to be deliberate and stable? If this is the case, could it
> > be possible to make explicit in the documentation, under the header
> > “Result”, that the original block or inline element is left unchanged?
> 
> Yes, this is deliberate and won't change. A PR to improve the docs would
> be very welcome.
> 
> 
> -- 
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
> 
> -- 
> You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/87tu8pyaur.fsf%40zeitkraut.de.

-- 
You received this message because you are subscribed to the Google Groups "pandoc-discuss" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/YqZPhvGeWIZaIPct%40localhost.