[NTG-context] Callbacks (and nodes) in LuaMetaTeX
Max Chernoff
mseven at telus.net
Wed May 25 12:07:53 CEST 2022
Hi list,
I haven't had any luck solving any of the issues from my previous email:
[NTG-context] Callbacks in LuaMetaTeX
https://mailman.ntg.nl/pipermail/ntg-context/2022/105566.html
Admittedly, my problems are fairly obscure (and likely self-inflicted),
but any suggestions would be greatly appreciated. I've updated my
ConTeXt installation to the latest version (mkxl 2022.05.11 11:36), but
this doesn't seem to have changed anything.
Further to the previous email, I have one (semi-related) additional
question:
6. The LuaTeX manual says that the subtype of "ins" nodes is a number
corresponding to the insert class. This appears to work correctly.
The LuaMetaTeX manual says the same thing about "insert" nodes;
however, the subtype of "insert" nodes appears to always be zero.
Using this code:
\startluacode
local traverse_id = node.traverse_id or node.traverseid
local insert = node.id"insert" or node.id"ins"
function test(head)
for n in traverse_id(insert, head) do
inspect(n)
print(n.subtype)
end
return head
end
nodes.tasks.appendaction("finalizers", "after", "test")
\stopluacode
\starttext
One \footnote{Two} \insert123{Three} Four.
\stoptext
In MkIV I get:
<node 1048 < 1842 > 1917 : ins 132>={
["attr"]="<list>",
["cost"]=0,
["depth"]=221327,
["head"]="<list>",
["height"]=790454,
["next"]="<node 1848 < 1917 > nil : ins 123>",
["prev"]="<node 1989 < 1048 > 1842 : hlist 1>",
["subtype"]=132,
["type"]="ins",
}
132
<node 1848 < 1917 > nil : ins 123>={
["attr"]="<list>",
["cost"]=0,
["depth"]=1073741823,
["head"]="<list>",
["height"]=553344,
["prev"]="<node 1074 < 1848 > 1923 : glue 13>",
["subtype"]=123,
["type"]="ins",
}
123
but in MkXL I get:
<node : 3370 <= 3238 => 3385 : insert 0>={
["attr"]="<attribute>",
["depth"]=221327,
["height"]=790454,
["id"]="insert",
["list"]="<node : nil <= 2573 => nil : hlist line>",
["next"]="<node>",
}
0
<node : 3238 <= 3385 => nil : insert 0>={
["attr"]="<attribute>",
["height"]=553344,
["id"]="insert",
["list"]="<node : nil <= 3223 => nil : hlist line>",
}
0
Is there any way to get an insert's class from its node in MkXL?
Please let me know if you have any ideas for this or any of the earlier
questions.
Thanks!
-- Max
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