On Sun, 15 Feb 2026 at 21:34, David Chiang <[email protected]> wrote:
> I see that part of my problem was creating glyph nodes with subtype 0 and
> I should use subtype 1 instead.
>
> But to be clear, these are the cases I found surprising:
>
> local a = node.new('glyph', 0)
> node.protect_glyph(a)
> node.protect_glyph(a)
> print(a.subtype) -- expected 256, actual 512
> node.unprotect_glyph(a)
> node.unprotect_glyph(a)
> print(a.subtype) -- expected 0, actual 256
>
> local b = node.new('disc')
> local c = node.new('glyph', 'character')
> b.replace = c
> node.unprotect_glyph(b)
> print(c.subtype) -- expected 1, actual 65281
>
>
> The second case (expected 0, actual 256) is explained by what you wrote:
>
> we make an exception for 256 which can be used when
>> no subtype is set which makes it possible to disable unprotection.
>>
>
> But the first case still seems surprising to me, and the third case really
> looks like a bug to me.
>
I will check them later.
--
luigi
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