[luatex] Copy or recreate nodes.
Paul Isambert
zappathustra at free.fr
Fri Aug 6 20:02:19 CEST 2010
Hello all,
It's a bit calm here today, so let's ask a somewhat Byzantine question so we (at
least I) will be a little more knowledgeable tonight.
Suppose I want to add a node in a list. The question is, what's the preferred
solution between the following two:
1. Create one node and copy it:
\directlua{%
mynode = node.create(10) % Let's say it's a glue.
% Some node specs here
function addnode (head,place)
node.insert_after(head,place,node.copy(mynode))
end
}
2. Create a new node each time:
\directlua{%
function addnode(head,place)
local mynode = node.create(10)
% Some node specs here
node.insert_after(head,place,mynode)
end
}
Both approaches work, but: is one better/faster/more economical than the other?
Is the difference significant anyway?
My guess is that the first method is better if for instance you add a few nodes
many times, and the second one is better if you add many nodes a few times each.
(Overall I find the first one looks better.)
Best,
Paul
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